KR102002519B1 - Moving security camera - Google Patents

Abstract

The present invention relates to a moving scouting camera which is mounted on a vehicle and photographs an image around the vehicle. The moving scouting camera comprises: an impact absorbing unit installed in an outer frame of a vehicle and absorbing an impact transferred from the vehicle; and a photographing unit connected to and installed in an upper side of the impact absorbing unit and photographing an image around the vehicle.

Description

Moving Reconnaissance Camera {MOVING SECURITY CAMERA}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a mobile reconnaissance camera, and more particularly, to a mobile reconnaissance camera mounted on a vehicle and configured to photograph an image of the surroundings of the vehicle.

All conventional security CCTV systems have been implemented in a fixed state. Typically, CCTV is installed in the alley to record the situation of the alleys 24 hours. In the case of the home, a camera is installed in the vicinity of a house or a door to monitor a person entering or exiting a door or recording a situation in a fence around a house . CCTV can be installed in a building or a building. CCTV installed at the entrance of the main hall, corridor, and various important facilities monitors the situation within the monitoring range (shooting range) 24 hours

As such, the CCTV system was installed to monitor a specific situation, so it was necessary to record 24 hours, and it was fixed at a certain position. One of the reasons is that DVR or NVR system is required for CCTV recording. The DVR or NVR system is a means for storing images that the camera has recorded for 24 hours, and it has usually been necessary to fix the DVR or NVR system in a fixed position together with the monitor.

Occasionally, a CCTV or camera may be installed in a mobile vehicle for other purposes such as intermittent driving. For example, the intermittent vehicle has been illegally parked or stopped by taking pictures with the camera. The camera is installed on the upper side of the vehicle and the DVR is installed in the vehicle. Therefore, even in this case, the CCTV system is fixed to the vehicle, but is a form in which the vehicle moves.

In the case of a surveillance system installed in a vehicle, it is difficult to shoot a clear image by vibrations or shocks caused by the movement of the vehicle. In addition, there is a problem in that the imaging equipment may fail within a short time due to continuous vibration or impact .

On the other hand, the background art described above is technical information acquired by the inventor for the derivation of the present invention or obtained in the derivation process of the present invention, and can not necessarily be a known technology disclosed to the general public before the application of the present invention .

Korean Patent No. 10-1902276 Korean Patent Publication No. 10-2018-0120065

One aspect of the present invention provides a mobile reconnaissance camera having an impact absorbing portion to prevent a vibration or an impact transmitted from a vehicle from being transmitted to a camera even when the vehicle is running.

The technical problem of the present invention is not limited to the technical problems mentioned above, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

A mobile reconnaissance camera according to an embodiment of the present invention includes: a shock absorber installed in an outer frame of a vehicle and absorbing impact transmitted from the vehicle; And a photographing unit connected to an upper side of the shock absorbing unit and photographing a video image of the surroundings of the vehicle.

In one embodiment, the shock absorber includes a plurality of vibration dampers installed apart from each other in an outer frame of the vehicle, the shock absorbers absorbing impact transmitted from the vehicle to attenuate vibration; A support for forming a plurality of frames extending radially from the flat plate frame and coupled to the vibration damping unit; And a height adjusting unit installed between the photographing unit and the branch frame to adjust a mounting height or a horizontal position of the photographing unit, wherein the photographing unit includes an upper unit; And a lower unit connected to a lower side of the upper unit to adjust a connecting angle between the lower unit and the upper unit and the lower corner of which is supported by the height adjusting unit, A unit body to be connected; An infrared camera installed on one side of the upper portion of the unit main body for tracking or detecting the heat of an object positioned in front of the vehicle and taking an image; A laser pointer installed at a lower front side of the thermal imaging camera and emitting a laser beam to an object; A front light installed on one side or both sides of the lower portion of the unit main body and illuminating the front of the vehicle using LEDs; A camera installed on the other side of the upper portion of the unit main body for photographing an image of an object located in front of the vehicle; A protection frame formed of a plurality of vertical frames and a plurality of horizontal frames connected to each other and covering the upper portion of the unit body to protect the unit body; And a driving control unit installed in an inner space of the unit main body to control driving of each device, wherein the lower unit is provided with a rear light illuminating the rear of the vehicle using LEDs, A display unit for displaying an angle or turning on / off the power supplied to the device is installed at a rear stage, the device is connected to the drive control unit through a wired or wireless network to transmit and receive data, And a remote control unit for generating a driving control signal and transmitting the driving control signal to the driving control unit. The remote control unit moves the impact absorption unit upward or downward, or moves the shock absorption unit upward or downward to adjust the shooting height of the shooting unit Further comprising a movable lifting device having a hydraulic jack, wherein the hydraulic jack Same type lifting device, the moving means being provided on a lower, at least one pole is disposed on an upper surface of the lower frame that is the length of the variable; An upper frame supported by the at least one post and disposed in parallel with the lower frame; And a hydraulic jack installed between the lower frame and the upper frame for moving up and down the upper frame by using an external force provided by a user to move up and down an object placed on the upper frame, A main body in which an inner cylinder and a lifting piston are disposed; A pressure piston provided outside the main body and communicating with the main body to maintain a closed state, and a pressure piston is formed inside the main body, and when the pressure piston is lowered after the working fluid is sucked as the pressure piston rises, An outer cylinder for providing a working fluid to the inner cylinder; A pressure lever connected to the pressure piston disposed inside the outer cylinder to transmit an external force provided by the user to the pressure piston; And a release valve releasing the pressure of the inner cylinder according to an operation of a user to allow the working fluid introduced into the inner cylinder to be recovered to the main body, wherein the plurality of outer cylinders are provided, A first outer cylinder formed along a central axis coaxial with the pressure lever and at least one second outer cylinder disposed about the diameter of the first outer cylinder, wherein the first outer cylinder and the at least one second The sum of the diameters of the outer cylinders is 1/3 or less of the diameter of the inner cylinder and the first outer cylinder and the at least one second outer cylinder are connected to each other through a suction pipe, And the hydraulic jack is connected to the first outer cylinder and the at least one second outer cylinder Selectively opening and closing a number of the suction pipe may further include a control means for varying the strength W of the pressure piston.

According to one aspect of the present invention, a shock-absorbing portion is provided between the main body and the vehicle so as to prevent the vibration or impact transmitted from the vehicle from being transmitted to the camera, so that a clear- And absorbing vibrations or shocks continuously transmitted to the camera, thereby providing an effect of improving the durability of the camera.

1 is a diagram showing a schematic configuration of a mobile reconnaissance camera according to an embodiment of the present invention.
Fig. 2 is a view showing a mounting example of the present invention.
Fig. 3 is a view showing the shock absorbing portion of Fig. 1. Fig.
4 is a view showing another embodiment of the shock absorber of FIG.
FIG. 5 is a view showing the photographing unit of FIG. 1. FIG.
FIG. 6 is a view showing the lower unit of FIG. 5. FIG.
7 is a view showing a mobile reconnaissance camera according to another embodiment of the present invention.
8 is a perspective view illustrating a portable lifting apparatus having a hydraulic jack according to an embodiment of the present invention.
Fig. 9 is a perspective view showing a specific configuration of the hydraulic jack shown in Fig. 8. Fig.
10 is a conceptual diagram for explaining the internal construction and operation principle of the hydraulic jack shown in Figs. 8 and 9. Fig.
11 is a view showing an outer cylinder and a connecting portion.
12 is a perspective view illustrating a portable lifting apparatus having a hydraulic jack according to another embodiment of the present invention.
13 to 15 are perspective views illustrating a hydraulic jack according to another embodiment of the present invention.
16 is a perspective view illustrating a portable lifting apparatus having a hydraulic jack according to another embodiment of the present invention.
17 is a view showing the elastic supporting portion of Fig.
Figs. 18 and 19 are views showing the support pillars of Fig.
20 is a view showing the cross-elastic portion of Fig. 18;
Fig. 21 is a view showing the vertical elastic part of Fig. 19;
FIG. 22 is a view showing the load distribution unit of FIG. 16; FIG.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a diagram showing a schematic configuration of a mobile reconnaissance camera according to an embodiment of the present invention.

Referring to FIG. 1, a mobile reconnaissance camera 10 according to an embodiment of the present invention includes an impact absorbing unit 100 and a photographing unit 200.

The shock absorber 100 is mounted on an outer frame of the vehicle and absorbs impact transmitted to the photographing unit 200 connected to the upper side of the vehicle to allow stable photographing of the photographing unit 200, Thereby preventing the occurrence of the remaining residual space.

The photographing unit 200 is connected to the upper side of the impact absorbing unit 100, and photographs an image of the surroundings of the vehicle.

The mobile reconnaissance camera 10 having the above-described configuration may further include a remote control unit 800. [

The remote control unit 300 is a remote controller that is mounted on a vehicle or operated by a user to carry and transmit data to and from a drive control unit 217 to be described later through a wired or wireless network, And generates a driving control signal corresponding to the received driving control signal, and transmits the driving control signal to the driving control unit 217.

The mobile reconnaissance camera 10 having the above-described structure is provided with a shock absorber 100 (not shown) between the photographing unit 200 and the vehicle so as to prevent the vibration or impact transmitted from the vehicle from being transmitted to the photographing unit 200. [ It is possible to capture an image of a clear image quality even when the vehicle is running and to absorb the vibration or shock that is continuously transmitted to the photographing unit 200 to improve the durability of the photographing unit 200. [

Fig. 3 is a view showing the shock absorbing portion of Fig. 1. Fig.

Referring to FIG. 3, the shock absorber 100 includes a plurality of vibration dampers 110, a support 120, and a height adjuster 130.

The vibration damping part 110 is installed apart from the outer frame of the vehicle and absorbs the impact transmitted from the vehicle by using elastic resilient ends such as springs formed therein to attenuate the vibration, Respectively.

4, the supporting unit 120 includes a flat plate frame 121 formed in a flat plate shape, a plurality of branched frames 122 radially extended from the flat plate frame 121 and fastened to the vibration damping unit 110, And a height adjuster 130 is installed on each of the branch frames 122.

The height adjuster 130 is provided between the photographing unit 200 and the branch frame 122 to adjust the mounting height or the horizontal position of the photographing unit 200.

3, the height adjuster 130 includes a lower plate 131 connected to the upper side of the branch frame 122, a plurality of spring wires 133 extending upward from the lower plate 131, And an upper plate 132 spaced apart from the upper side of the lower plate 131 by a wire 133.

Therefore, the height adjusting unit 130 can attenuate shocks or vibrations transmitted from the vehicle to the photographing unit 200 together with the vibration damping unit 110 due to the vibration damping function by the spring wire 133.

4 is a view showing another embodiment of the shock absorber of FIG.

The shock absorbing portion 100a according to another embodiment may include a height adjusting portion 130a formed in a linear shape instead of the height adjusting portion 130 as shown in FIG. Here, the vibration damping part 110 and the support part 120 are the same as those of the components shown in Fig. 3, and a description thereof will be omitted.

Referring to FIG. 4, the branch frame 122 may be formed with a sliding hole 123 for longitudinally adjusting the mounting position by sliding the longitudinal adjuster 130a in a longitudinal direction after the lower portion of the height adjuster 130a is connected. have.

FIG. 5 is a view showing the photographing unit of FIG. 1. FIG.

Referring to FIG. 5, the photographing unit 200 includes an upper unit 210 and a lower unit 220.

The upper unit 210 is connected to the upper side of the lower unit 220 to photograph the periphery of the vehicle and includes a unit body 211, a thermal imager 212, a laser pointer 213, a front light 214 A camera 215, a protection frame 216, and a drive control unit 217.

The unit body 211 is connected to the upper side of the lower unit 220 to form a basic body.

The thermal imaging camera 212 is installed on one side of the upper portion of the unit body 211, and traces or detects the heat of an object positioned in front of the vehicle and shoots the image.

The laser pointer 213 is installed on the lower side of the front face of the thermal imaging camera 212 and reaches a time of 1 mk even at night to emit a laser beam to an object.

The front light 214 is installed on one side or both sides of the lower part of the unit body 211 and illuminates the front of the vehicle using LEDs so as to reach 100 meters ahead of the vehicle at night.

The camera 215 is provided on the other side of the upper part of the unit body 211, and captures an image of an object located in front of the vehicle.

The protection frame 216 is formed of a plurality of vertical frames and a plurality of horizontal frames connected to each other to cover the upper portion of the unit body 211 to protect the unit body 211.

At this time, it is preferable that each frame constituting the protective frame 216 is formed of a high rigidity hard coating frame so as to efficiently protect the structure located inside.

The drive control unit 217 is installed in the inner space of the unit main body 211 to control the driving of each device.

The upper unit 210 having the above-described configurations is connected to the upper side of the lower unit 220 to photograph the periphery of the vehicle. The unit 210 includes a unit body 211, a thermal imager 212, a laser pointer The front light 214, the camera 215, the protective frame 216, and the drive control unit 217, as well as various types of photographing means manufactured in a modular fashion may be additionally installed.

The lower unit 220 is connected to the lower side of the upper unit 210 to adjust the angle of connection with the upper unit 210 and each lower edge is supported by the height adjuster 130.

At this time, the lower unit 220 can tilt or pan the upper unit 210 connected to the upper side using the tilt unit and the pen unit.

The driving of each of the components of the photographing unit 200 having the above-described configuration can be controlled remotely (for example, photographing of the image or photographing of the upper unit 210) according to the drive control signal received from the remote control unit 300 Tilting, penning, etc.), and video signals photographed in the respective configurations can be transmitted to the remote controller 300 through a wired or wireless network.

FIG. 6 is a view showing the lower unit of FIG. 5. FIG.

Referring to FIG. 6, the installation height and the horizontal height of the lower unit 220 are determined by the shock absorber 100 connected to the lower unit. The rear light 221 illuminates the rear of the vehicle using LEDs And a display unit 222 installed at the rear stage for displaying the connection angle of the upper unit 210 or displaying ON / OFF of the power supplied to the apparatus may be installed at the rear end.

7 is a view showing a mobile reconnaissance camera according to another embodiment of the present invention.

Referring to FIG. 7, the mobile reconnaissance camera 10a according to another embodiment includes a movable lifting device 20, 30, 40 having an impact absorbing portion 100, a photographing portion 200, and a hydraulic jack. Here, since the shock absorbing unit 100 and the photographing unit 200 are the same as those in Fig. 1, their description will be omitted.

The portable lifting apparatuses 20, 30 and 40 provided with the hydraulic jacks are provided with shock absorbing parts 100 so as to move the shock absorbing parts 100 on the upper side or to adjust the photographing height of the photographing part 100 Raise or lower it.

The mobile reconnaissance camera 10a having the above-described structure moves by using the movable lifting devices 20, 30 and 40 equipped with a hydraulic jack when moving to a place such as a repair shop for repair or maintenance, It is possible to prevent the movement from being difficult.

Also, the height of the installation can be adjusted by using the portable lifting devices (20, 30, 40) equipped with the hydraulic jacks even in the maintenance state, thereby providing a better maintenance environment to the mechanic.

8 is a perspective view illustrating a portable lifting apparatus having a hydraulic jack according to an embodiment of the present invention.

The portable lifting apparatus 20 provided with the hydraulic jack may include a lower frame 310, an upper frame 320, and a hydraulic jack 400.

The lower frame 310 is a member constituting the lower surface of the movable lifting device 20. [ The lower portion of the lower frame 310 is provided with a moving means 330, so that the movable lifting device 20 equipped with the hydraulic jack according to the present invention can ensure mobility.

At least one post 340 may be disposed on the upper surface of the lower frame 310.

As shown in the figure, the pillars 340 may be provided at four corners of the lower frame 310, but the number of the pillars 340 is not limited.

The column 340 may be provided in a shape in which the length can be varied. For example, the column 340 may include an outer column having a first diameter and an inner column having a diameter smaller than the first diameter, and inserted into the outer column and sliding along the longitudinal direction of the outer column. In this case, when the inner column slides in the direction of insertion into the outer column, the entire length of the column 340 is shortened, and if the inner column slides in the direction protruding from the outer column, the overall length of the column 340 may increase. However, it is needless to say that the column 340 is not limited to the above-described configuration and can be replaced with other conventional structures as long as the length can be varied by an external force.

The upper frame 320 may be supported from the lower frame 310 by at least one column 340 and disposed in parallel with the lower frame 310. When the length of the column 340 is increased, the upper frame 320 moves up and down from the ground while the upper frame 320 moves up and down, 320 are lifted up.

The hydraulic jack 400 is a device that provides the column 340 with a lifting force. The hydraulic jack 400 is installed between the lower frame 310 and the upper frame 320 and adjusts the length of the column 340 by using an external force provided by a user in order to raise / The upper frame 320 can be raised and lowered. In this regard, the description will be made with reference to Figs. 9 to 11 together.

FIG. 9 is a perspective view showing a specific configuration of the hydraulic jack 400 shown in FIG. 8, and FIG. 10 is a conceptual diagram for explaining an internal configuration and operation principle of the hydraulic jack 400 shown in FIG. 8 and FIG.

Specifically, the hydraulic jack 400 according to one embodiment of the present invention includes a main body 410, an outer cylinder 420, a press lever 430, and a release valve 440.

The main body 410 is a cylindrical member, and a space in which a working fluid can be stored is formed, and an inner cylinder 411 and an elevating piston 412 can be disposed therein.

The inner cylinder 411 is a cylindrical member formed inside the main body 410. A working fluid may be stored between the main body 410 and the inner cylinder 411. [

The lifting piston 412 is a member provided on the inner cylinder 411 and reciprocating along the longitudinal direction of the inner cylinder 411. That is, when the working fluid is supplied to the inner cylinder 411, the lifting piston 412 is lifted by the pressure of the working fluid and the length of the column 340 is increased. As a result, the lifting piston 412 is brought into contact with the upper portion of the lifting piston 412 The upper frame 320 can rise from the ground.

The outer cylinder 420 is a member for supplying fluid to the inner cylinder 411 and may be connected to the main body 410 through a fastening bracket 415 so as to maintain the sealed state with the main body 410. A pressure piston 421 is formed inside the pressure piston 421 and the pressure piston 421 can be raised or lowered by the pressure lever 430.

The pressure lever 430 is connected to the pressure piston 421 and transmits the external force provided by the user to the pressure piston 421.

11 shows an outer cylinder 420 constituting the hydraulic jack 400 and a connecting portion 422 for engaging the pressurizing piston 421 and the pressurizing lever 430 of the outer cylinder 420, The pressure piston 421 formed inside the piston 420 is physically coupled to the pressure lever 430 through the connection portion 422. Due to such a structural feature, the pressure piston 421 is pressed by the pressure lever 430, An external force can be delivered.

The press lever 430 is formed with a through hole for engaging a member such as a pipe or the like that can be held by the user. The user moves the pipe up and down in a state where the pipe is coupled to the press lever 430 An external force may be applied to the pressure lever 430. [ In another embodiment of the present invention, the pressure lever 430 may include the pipe described above or may be provided integrally with the pipe.

A specific operation principle of the hydraulic jack 400 according to an embodiment of the present invention is as follows. When a user pushes the pressing lever 430 in a state where an object to be raised by the hydraulic jack 400 is seated on the upper frame 320 A negative pressure is formed in the outer cylinder 420 while the pressure piston 421 is lifted. Accordingly, the working fluid stored between the main body 410 and the inner cylinder 411 can flow into the outer cylinder 420 along the suction pipe 451.

Thereafter, when the user presses the pressure lever 430, the pressure piston 421 descends and applies pressure to the working fluid sucked into the outer cylinder 420. Thus, the working fluid sucked into the outer cylinder 420 can move to the inner cylinder 411 along the supply pipe 452. [ At this time, a check valve is provided at one end of the suction pipe 451 connected to the outer cylinder 420 so that the working fluid can be fed only along the supply pipe 452. The lift piston 412 rises by the pressure of the working fluid flowing into the inner cylinder 411. As the pressure of the inner cylinder 411 gradually increases, the lift piston 412 gradually rises, and the lift piston 412 is gradually lifted up by the pressure of the lift piston 430. As a result, 412) to lift the object placed on the top.

The release valve 440 is formed at one end of the supply pipe 452 and is a valve-shaped member for releasing the pressure of the inner cylinder 411 according to the user's operation. That is, when the user desires to lower the object to its original position, when the release valve 440 is opened, the high-pressure filled working fluid flowing into the inner cylinder 411 receives the gravity of the object through the recovery pipe 530 The pressure of the lifting piston 412 is returned to the main body 410 and the pressure of the inner cylinder 411 is lowered so that the lifting piston 412 is lowered by the gravity of the object and the object can descend to the original position .

As described above, the hydraulic jack 400 according to the embodiment of the present invention can lift or lower heavy objects by using a small force repeatedly applied from the user to the pressure lever 430. [

Meanwhile, in another embodiment of the present invention, the user can adjust the magnitude of the pressure provided to the lifting piston 412 according to the type of object and the type of work to be performed. In this regard, the description will be made with reference to FIGS. 12 to 15 together.

12 is a perspective view illustrating a portable lifting apparatus having a hydraulic jack according to another embodiment of the present invention.

Specifically, the portable lifting apparatus 30 provided with the hydraulic jack according to another embodiment of the present invention includes a lower frame 310, an upper frame 320, and a hydraulic jack 400a.

In this case, the lower frame 310 and the upper frame 320 constituting the portable lifting device 30 having the hydraulic jack according to another embodiment of the present invention shown in FIG. The lower frame 310 and the upper frame 320 constituting the portable lifting apparatus 20 provided with the hydraulic jacks according to the present embodiment are the same as those of the lower frame 310 and the upper frame 320, and a repeated description thereof will be omitted.

Meanwhile, the portable lifting device 30 having the hydraulic jack according to another embodiment of the present invention includes a hydraulic jack (not shown) according to an embodiment of the present invention, which constitutes the portable lifting device 20 having the hydraulic jack shown in FIG. 400 may be replaced with a hydraulic jack 400a according to another embodiment of the present invention. In this regard, the description will be made with reference to FIGS. 13 to 15 together.

13 to 15 are perspective views illustrating a hydraulic jack 400a according to another embodiment of the present invention.

Fig. 13 is a perspective view of a hydraulic jack 400a according to another embodiment of the present invention, Fig. 14 is a view comparing external cylinders constituting the hydraulic jack 400a of Fig. 13, 400a in accordance with an embodiment of the present invention.

The hydraulic jack 400a according to another embodiment of the present invention includes a main body 410, outer cylinders 420a, 420b, 420c, 620d, 620e, 620f, a press lever 430, and a release valve 440 .

The main body 410, the press lever 430 and the release valve 440 constituting the hydraulic jack 400a according to another embodiment of the present invention shown in FIG. The pressurizing lever 430 and the release valve 440 constituting the hydraulic jack 400 according to the embodiment of the present invention will be omitted.

The hydraulic jack 400a according to another embodiment of the present invention may include a plurality of outer cylinders 420 shown in FIG. That is, in the hydraulic jack 400a according to another embodiment of the present invention, a plurality of outer cylinders 420a, 620b, 420c, 420d, 420e, 420f, and 420g may be connected to the pressure lever 430. [ 12, the hydraulic jack 400a according to another embodiment of the present invention includes six outer cylinders 420b, 420c, and 420c around a first outer cylinder 420a formed along a central axis coaxial with the push lever 430, 420d, 420e, 420f, and 420g are arranged along the circumference of the first outer cylinder 420a. However, the present invention is not limited thereto, and the number of the outer cylinders is not limited to two or more.

Each of the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g is provided in a cylindrical shape, and a pressure piston is formed therein. That is, when the user applies an external force to the hydraulic jack 400a by operating the pressure lever 430, the pressure lever 430 transmits the external force to the external cylinders 420a, 420b, 420c, 420d, 420e, 420f, 420g ).

When the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g are designed to have the same diameter, they are transmitted to the respective outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g Can be uniformly dispersed. As another example, when the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g are designed to have different diameters, the external force can be distributed and transmitted in proportion to the size of the diameter.

The total sum of diameters of all the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g constituting the hydraulic jack 400a may be designed to be smaller than the diameter of the inner cylinder 411, The sum of the diameters of the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, 420g is preferably less than 1/3 of the diameter of the inner cylinder 411. [ When the diameter of the outer cylinder is larger than the diameter of the inner cylinder 411, a force smaller than the magnitude of the external force applied to the outer cylinder can be transmitted to the inner cylinder 411.

A specific operation principle of the hydraulic jack 400a according to another embodiment of the present invention will be described with reference to FIG.

15, the hydraulic jack 400a according to another embodiment of the present invention is shown to include three outer cylinders 420a, 420b, and 420c. However, as described above, FIG. 13 illustrates the hydraulic jack 400a of FIG. In a conceptual view for explaining the operation principle, the case where two external cylinders or four or more external cylinders are provided may be the same as or similar to the operation principle described later.

When the user lifts the pressure lever 430 in a state where the hydraulic jack 400a is in contact with an object at a lower portion of the object to be raised, the pressure pistons 421a, 421b, and 421c of the outer cylinders 420a, 420b, and 420c A negative pressure is formed in the outer cylinder 420. [ Accordingly, the working fluid stored between the main body 410 and the inner cylinder 411 can flow into the outer cylinders 420a, 420b and 420c along the suction pipes 451a, 451b and 451c.

Thereafter, when the user presses the pressure lever 430, the pressure pistons 421a, 421b, and 421c descend and apply pressure to the working fluid sucked into the outer cylinders 420a, 420b, and 420c. Accordingly, the working fluid sucked into the outer cylinders 420a, 420b, and 420c can move to the inner cylinder 411 along the supply pipes 452a, 452b, and 452c. The lift piston 412 rises by the pressure of the working fluid flowing into the inner cylinder 411. As the pressure of the inner cylinder 411 gradually increases, the lift piston 412 gradually rises, and the lift piston 412 is gradually lifted up by the pressure of the lift piston 430. As a result, 412) to lift the object placed on the top.

The hydraulic jack 400a according to another embodiment of the present invention controls the opening and closing of the shutoff valves 4511a, 4511b and 4511c and the shutoff valves 4511a, 4511b and 4511c installed at one end of the suction pipes 451a, 451b and 451c And may further include control means (not shown).

Control means (not shown) may be provided in the form of a control circuit disposed inside the fastening bracket 415, and may be electrically connected to the shutoff valves 4511a, 4511b, and 4511c. In this case, the control means (not shown) can open / close the shutoff valves 4511a, 4511b and 4511c in accordance with the user's operation.

The above formula (1) is a formula representing the force W exerted on the lifting piston 412. The lifting force W applied to the lifting piston 412 is a force acting on the lifting piston 412 against the diameter D of the lifting piston 412 The sum of the diameters d of the pistons 421a, 421b and 421c and the external force w applied to the pressure pistons 421a, 421b and 421c.

That is, when the user transmits a certain amount of external force w through the pressure lever 430 to the hydraulic jack 400, the lifting force of the lifting piston 412 is transmitted to the pressure piston 412 against the diameter D of the lifting piston 412 421a, 421b, and 421c, respectively. Here, the diameter D of the lifting piston 412 is determined according to the diameter of the inner cylinder 411, and the sum d of the diameters of the pressure pistons 421a, 421b and 421c is equal to the sum of the outer cylinders 420a, 420b and 420c The upward force W applied to the lifting piston 412 is determined by the ratio of the diameters of the outer cylinders 420a, 420b and 420c to the diameter of the inner cylinder 411 Can be varied.

Accordingly, the hydraulic jack 400a according to another embodiment of the present invention can selectively open / close the shutoff valves 4511a, 4511b, and 4511c by control means (not shown) It is possible to adjust the amount of the working fluid to be introduced and to increase the strength of the lifting piston 412 by applying pressure to the working fluid only through the pressure pistons 421a, 421b and 421c with the shutoff valves 4511a, 4511b and 4511c being opened .

For example, when only the first shut-off valve 4511a is closed in response to the user's control means (not shown), the external force applied to the working fluid acts when all the shut-off valve valves 4511a, 4511b and 4511c are opened Only two-thirds of the external force w applied to the fluid can be delivered. In other words, according to the control of the control means (not shown), the diameter of the outer cylinders 420a, 420b, and 420c is varied to control the lifting force W of the lifting piston 412, The lifting height of the hydraulic jack 400 according to one operation of the pressure lever 430 can be adjusted according to the type of object to be lifted or the type of work to be performed after the object is lifted.

In some other embodiments, the control means (not shown) may automatically determine the shutoff valve valves 4511a, 4511b, 4511c to be opened or closed.

For example, the control means (not shown) may only open one shutoff valve valve 4511a, 4511b, 4511c until the pressure lever 430 is operated a predetermined number of times from the initial operation time of the hydraulic jack 400a, It is possible to control the plurality of shutoff valve valves 4511a, 4511b, and 4511c to be opened from the time when the pressure lever 430 is operated more than the predetermined number of times. More specifically, the control means (not shown) allows only the first shut-off valve 4511a to be opened until the first presser lever 430 is operated five times, and until the pusher lever 430 is operated six to ten times The first shutoff valve 4511a and the second shutoff valve 4511b are opened and all the shutoff valves 4511a, 4511b and 4511c are opened from 11 times or more. In general, when the object is lifted using the hydraulic jack 400a, there are not many kinds of operations that can not be performed at a low height. Therefore, if the object is raised at a high speed in the early stage and then raised to a proper height, Need to be finely adjusted. At this time, according to the above-described features of the present invention, when only one shut-off valve is opened, the object is raised at a high speed in a comparatively short time, and then gradually increases as the number of shut- The rising speed can be reduced. Therefore, the user has the effect of varying the elevation height of the object even if the hydraulic jack 400a is always operated with a constant force.

As another example, the control means (not shown) can automatically determine the shutoff valve valves 4511a, 4511b, and 4511c to be opened or closed according to the weight of the object disposed above the hydraulic jack 400a.

To this end, the hydraulic jack 400a according to still another embodiment may further include weight sensing means (not shown).

The weight sensing means (not shown) senses the weight of the object disposed on the upper portion of the hydraulic jack 400a and transmits the sensed weight to a control means (not shown) It is possible to determine whether the shutoff valve valves 4511a, 4511b, and 4511c are opened or closed, respectively.

For example, if the control means (not shown) determines that the weight of the object is included in the first critical section, which is relatively light in weight, all of the shutoff valves 4511a, 4511b, 4511c are opened, It is possible to control the lift height of the hydraulic jack 400 according to the turning operation to be relatively low. On the other hand, if the control means (not shown) confirms that the object is included in the relatively heavy second critical section, the at least one shut-off valve 4511a, 4511b, 4511c is opened, It is possible to control the lift height of the hydraulic jack 400 to be relatively low. This is because when the weight of the object is relatively light, the object can be removed from the hydraulic jack 400a during the ascending process. If the weight of the object is relatively heavy, the possibility of leaving the hydraulic jack 400a during the ascending process is relatively low. This is because a lot of upward force is needed.

As described above, the hydraulic jack 400a according to another embodiment of the present invention can vary the lifting force of the lifting piston 412 according to the kind of the object, the type of work, etc., so that the efficient operation using the hydraulic jack 400a can be performed .

16 is a perspective view illustrating a portable lifting apparatus having a hydraulic jack according to another embodiment of the present invention.

The movable lifting device 40 having the hydraulic jack according to another embodiment of the present invention includes a lower frame 310, an upper frame 320, a hydraulic jack 400, and a drop prevention part 700.

The lower frame 310, the upper frame 320 and the hydraulic jack 400 constituting the movable lifting device 40 having the hydraulic jack according to another embodiment of the present invention shown in FIG. The lower frame 310 and the upper frame 320 constituting the portable lifting apparatus 20 provided with the hydraulic jack according to an embodiment of the present invention are the same as those of the lower frame 310 and the upper frame 320,

The drop preventing portions 700 are respectively provided on both sides of the hydraulic jack 400 to support the upper frame 320 when the upper frame 320 is dropped to prevent the hydraulic jack 400 from being broken.

In one embodiment, the drop preventing portion 700 may include an elastic supporting portion 500 and a load dispersing portion 600.

17 is a view showing the elastic supporting portion of Fig.

17, the elastic support 500 includes a support frame 540, four support plates 510, four pairs of support frames 520, and support pillars 530.

The support frame 540 is supported by the support plate 510 installed on the lower side and supports the upper frame 320 by using an elastic force when the upper frame 320 is dropped.

The support plate 510 supports the support frame 540 that is seated on the upper side and is supported by the support columns 530 by the support frame 520 connected to the lower side.

In other words, the support plate 510 seats the support frame 540 on the upper side, and the support plate 540 supports the left and right direction (i.e., the first frame 521a) by the elastic force corresponding to vibration, Or the support frame 520 which is slidably moved in the vertical direction (i.e., the second frame 521b).

In addition, since the lengths of the first frame 521a or the second frame 521b are variously formed, the present invention overcomes the limitations of existing elastic bodies that can reduce the impact by simply adjusting the height in the vertical direction, The supporting position by the plate 510 can be freely adjusted not only in the vertical direction but also in the left and right direction.

The support frame 520 is connected to two frames of the first frame 521a and the second frame 521b so as to be rotatable at the bottom of each of the four support plates 510 to support the plate 510 , The length of the first frame 521a or the second frame 521b is adjusted as described above to determine the support position of the support frame 540 by the plate 510. [

The upper portion of the first frame 521a and the upper portion of the second frame 521b are connected to the lower portion of the receiving plate 510 and the lower portion of the first frame 521a is rotated and rotated on the upper surface of the supporting column 530. [ And the lower portion of the second frame 521b is connected to one side of the support pillar 530 so as to be rotatable and vertically slidable.

That is, the first frame 521a or the second frame 521b can receive vibration or shock transmitted from the support plate 510 through the rotation or sliding movement by the elastic force on the upper side or one side of the support column 530 To support pillars 530.

The lower part of the second frame 521b is connected to the upper surface of the first frame 521a so as to be rotatable and horizontally slidable, And the elastic force (that is, the cross elastic portion 533 or the vertical elastic portion 535) when the first frame 521a or the second frame 521b is slidingly moved is provided so as to be rotatable and vertically slidable Thereby absorbing vibration or shock.

Each supporting plate 510 or the supporting frame 520 is symmetrical with respect to each other and driven by the same method. The description of the supporting plate 510 or the supporting frame 520 as described above The same can be applied to the other support plate 510 or the other support frame 520, and a description thereof will be omitted.

In addition, although the elastic supporter 500 having the above-described structure can be formed with a vertically symmetrical structure, in the case of Fig. 17, the elastic supporter 500 is shown as being formed only on the upper portion of the supporter 530, The configuration associated with the four support plates 510 and the four pairs of support frames 520 as one would be equally applicable to the bottom of the support columns 530. [

Figs. 18 and 19 are views showing the support pillars of Fig.

18, the support column 530 includes a column body 531, a cross groove 532, a cross elastic portion 533, four vertical grooves 534 (see FIG. 19), and four vertical elastic portions (See FIG. 19).

The column body 531 is formed in a rectangular column shape, and a cross groove 532 is formed in an upper portion and a vertical groove 534 is formed in each side face.

The cross groove 532 is formed in the upper portion of the column body 531 in a "+" shape, and the cross-elastic portion 533 is inserted into the inner space.

The cross elastic portion 533 is formed in a shape corresponding to the shape of the cross groove 532 and is inserted into the cross groove 532 so that the lower side of the first frame 521a can be rotated And the vibration or shock transmitted from the first frame 521a is absorbed by elastic force to attenuate vibrations or shocks.

The vertical grooves 534 are vertically formed on the respective surfaces of the column body 531, and the vertical elastic portions 535 are inserted into the inner spaces.

The vertical elastic part 535 is formed in a shape corresponding to the shape of the vertical groove 534 and is inserted into the vertical groove 534 and the lower part of the second frame 521b is rotatably connected to the outside of the upper part, To absorb vibration or shock transmitted from the second frame 521b to attenuate vibrations or shocks.

20 is a view showing the cross-elastic portion of Fig. 18;

20, the cross-elastic portion 533 includes a cross case portion 5331, an upper support portion 5332, four upper elastic portions 5333, four upper elastic support portions 5334, 5335 < / RTI >

The cross housing portion 5331 is formed in a hollow shape and is inserted into the cross groove 532 and has an upper support portion 5332, four upper elastic portions 5333, Upper elastic supporting portions 5334 are provided.

At this time, the length of each branch of the cross case portion 5331 is formed to be shorter than the length of each branch of the cross groove 532 as shown in FIG. 20, The connecting link portion 5335 should be disposed and be capable of forming a space for sliding movement.

The upper support portion 5332 is formed as a cube and is disposed at the center portion of the cross case portion 5331 and supports the upper elastic portion 5333 so that the upper elastic portion 5333 is disposed outside the four surfaces, do.

The upper elastic part 5333 is disposed on each side of the upper supporting part 5332 and supports the upper elastic supporting part 5334 by elastic force to absorb vibration or impact transmitted from the upper elastic supporting part 5334. [

The upper elastic supporting portions 5334 are respectively disposed at the ends of the respective branches of the inner space of the cross case portion 5331 and are supported by the elastic force of the upper elastic portion 5333 and are disposed between the upper connecting link portions 5335 And supports the upper connecting link portion 5335 by the supporting bar 5336.

The upper connecting link portions 5335 are disposed at the ends of the respective branches of the cross groove 532 and are provided with supporting bars 5336 provided between one side surface facing the cross case portion 5331 and the upper elastic supporting portion 5334 And the lower part of the first frame 521a is rotatably connected to the lower part of the upper frame 521. The lower end of the first frame 521a is connected to the upper end of the first frame 521a, And moves along the groove of the cross groove 532 in the center direction.

Fig. 21 is a view showing the vertical elastic part of Fig. 19;

21, the vertical elastic portion 535 includes a vertical case portion 5341, a side support portion 5342, a side elastic portion 5343, a side elastic support portion 5344, and a side connection link portion 5345 do.

The vertical case portion 5341 is formed in a shape corresponding to the shape of the empty vertical groove 534 and has a side supporting portion 5342, a side elastic portion 5343 and a side elastic supporting portion 5344 ) Are installed in order.

The side support portion 5342 is formed as a cube and disposed in the lower space of the vertical case portion 5341 and the side elastic portion 5343 is disposed on the upper side to support the side elastic portion 5343.

The side elastic part 5343 is disposed on the upper side of the side supporting part 5342 and supports the side elastic supporting part 5344 disposed on the upper side by an elastic force so that the vibration or shock transmitted from the side elastic supporting part 5344 Absorbed.

The side elastic support portion 5344 is disposed on the upper side of the inner space of the vertical case portion 5341 and is supported by the elastic force of the side elastic portion 5343 and is supported by the support bars 5346 Thereby supporting the side connecting link portion 5345.

The side connection link portion 5345 is disposed at the upper end of the vertical groove 534 and has a support bar 5346 installed between the lower side opposed to the vertical case portion 5341 and the upper side surface of the side elastic support portion 5344 And the second frame 521b is rotatably connected to the outer side of the second frame 521b so as to be slidable along the groove of the vertical groove 534 in the lower direction of the vertical groove 534 .

22, the load distributor 600 includes a ball housing 610 provided below the support portion 630 for supporting the lower side of the elastic supporter 500 and having a hollow portion 615 therein, A plurality of small balls 620 for support placed in the portion 615 and a ground ball 645 having a fixing bolt 646 extending upward from the center of the ground plane 645 and the ground plane 645 at the top, 640).

The load dispersing unit 600 can disperse the load applied from the outside and partially absorb the load, and can transmit the load q smaller than the load P externally applied.

The load dispersing unit 600 disperses the load externally applied to the ball housing 610 inside the ball housing 610 and finally transmits a load smaller than the load externally applied to the ball housing 610 . The load exerted from the outside of the ball housing 610 is dispersed by the plurality of small balls 620 for support and the ground ball 640 located in the hollow portion 615. A part of the load is applied to the ball housing 610 And the remaining load can be transmitted to the outside of the ball housing 610.

The ball housing 610 may be fixed to the surface using concrete or the like and may be provided with a hollow portion 615 in which a plurality of small balls 620 for support and a ground ball 640 are accommodated .

The ball housing 610 is made of a material having a certain strength such as iron, concrete, wood, plastic or the like in order to support a load dispersed by a plurality of small balls 620 for support and a ground ball 640 ≪ / RTI >

The shape of the ball housing 610 may be various shapes such as a polygonal shape and a spherical shape. However, the hollow portion 615 may be formed in a spherical shape corresponding to the shape of the ground ball 640.

The plurality of small balls 620 for support and the ground ball 640 may be accommodated in the hollow portion 615 and may be formed in a spherical shape.

The plurality of small balls 620 for support can be regularly arranged and received so as to abut each other along the outer circumferential surface of the hollow portion 615. The ground ball 640 may be received in the hollow portion 615 in a state of being put on a plurality of small balls for support 620 and may be supported in a point contact state with a plurality of small balls 620 for support.

The plurality of small balls 620 for support and the ground balls 640 are regularly arranged so that the outer circumferences thereof are in contact with each other. By the contact points between the plurality of small balls 620 for support and the ground balls 640, The external load may be dispersed while pressing the hollow portion 615, that is, the inner wall of the ball housing 610, finally disposed at the outermost position. In this embodiment, a plurality of small balls 620 for support are regularly arranged and the ground balls 640 are arranged on a plurality of small balls 620 for support to arrange a plurality of small balls for support The number of contact points between the ball 620 and the ground ball 640 can be increased and the load transmission can be regularized to enhance the load transfer effect between the balls. In addition, the ground ball 640 is supported in a point contact state by a plurality of small balls 620 for support, so that wear can be minimized.

The plurality of small balls 620 for support and the ground ball 640 may be made of a material having strength capable of withstanding a load due to a contact point between the small balls 620 and the ground ball 640 and may be made of, for example, iron, concrete, have.

Meanwhile, the ground ball 640 may have a ground plane 645 on the top. A fixing bolt 646 is provided at the center of the ground plane 645 and inserted into the lower side of the supporting portion 630 to fix the supporting portion 630 to the ground ball 640.

At this time, the fixing bolt 646 may be formed in a non-patterned shape without forming a separate projection on the outer side, but may be formed in the lower side of the supporting portion 630 by forming a thread along the outer side surface It is preferable to tighten the bolts more strongly.

As described above, the load distribution unit 600 is provided below the elastic support unit 500 to support the elastic support unit 500, thereby assuring the stability of the support of the upper frame 320 by the elastic support unit 500 can do.

The mobile reconnaissance camera according to another embodiment of the present invention may further include a composition for repairing an architectural structure including an acrylic binder for filling and repairing a crack where the structure is cracked when the structure is cracked.

Here, the structure may correspond to the portable lifting apparatuses 20, 30, and 40 having the shock absorbing unit 100, the photographing unit 200, or the hydraulic jack, but the present invention is not limited thereto. This may be the case for each of the configurations.

The inventors of the present invention have found that, in a composition for repairing a conventionally existing building structure, a composition exhibiting satisfactory effects among compositions having improved water resistance, water resistance and crack resistance is not present, and as a result, Water resistance, water resistance, and crack resistance, all of which have satisfactory effects.

In the present invention, the acrylic binder may be an acrylic ester copolymer. The acrylic ester copolymer may be an acrylic ester copolymer having a CAS number of 30445-28-4. The inventors of the present invention found that when the composition contains the acrylic ester copolymer, it is possible to achieve both the water resistance and the crack resistance, which are the problems to be solved by the present invention, while searching for various compounds that can be added to the composition for repairing a building structure Respectively.

In the present invention, the acrylic binder may include 10 to 50 parts by weight, preferably 15 to 40 parts by weight, and more preferably 20 to 30 parts by weight.

The composition of the present invention may further include EVA binder, butyl cellosolve, rosin, texanol and propylene glycol specifically to achieve water resistance and water resistance among the problems to be solved by the present invention .

In the present invention, the EVA binder is preferably ethylene vinyl acetate and the CAS number is 24937-78-8.

In the present invention, the butylcellosolve may be a compound having CAS No. 111-76-2.

In the present invention, the rosin refers to a natural resin obtained by distilling rosin. Any rosin that is commercially available rosin may be included as a solution for solving the problem of the present invention.

In the present invention, TEXANOL may be a compound having CAS No. 25265-77-4.

In the present invention, the propylene glycol may be a compound having CAS No. 57-55-6.

The inventors of the present invention have found that the effect of water resistance is particularly improved when EVA binder, butyl cellosolve, rosin, texanol and propylene glycol are further contained as a constitution of a composition for repairing a building structure including an acrylic binder .

Specifically, the composition comprises 0.01 to 10 parts by weight of an EVA binder, 0.01 to 5 parts by weight of butyl cellosolve, 0.01 to 5 parts by weight of rosin, 0.01 to 5 parts by weight of texanol, and 0.01 to 3 parts by weight of propylene glycol .

More specifically, the present inventors have found that when the composition further comprises 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol, the effect of water resistance is remarkably improved Respectively. That is, the EVA binder, butyl cellosolve, rosin, texanol and propylene glycol, and 2-amino-2-methyl-1-propanol and 2-methylamino -2-methyl-1-propanol is further included, the present inventors have completed the present invention by confirming improved water resistance and water resistance.

In the present invention, the composition may contain the 2-amino-2-methyl-1-propanol and the 2-methylamino-2-methyl-1-propanol in a weight ratio of 15 to 20: 1, : 1, and more preferably in a weight ratio of 17 to 20: 1.

The 2-amino-2-methyl-1-propanol and the 2-methylamino-2-methyl-1-propanol may be contained in the composition in an amount of 0.1 to 5 parts by weight.

The inventors of the present invention have confirmed that the above composition can improve the water resistance in particular among the problems to be achieved by the present invention.

Also, the composition for repairing a building structure including the acrylic binder may further include ethylene glycol, butyl cellosolve, calcium carbonate, titanium dioxide, and water.

If the composition described above has excellent waterproofing and water resistance effects, the composition is characterized by improved crack resistance. The butyl cellosolve is as described above.

In the present invention, ethylene glycol refers to a compound having a CAS number of 107-21-1.

In the present invention, the calcium carbonate means a compound having a CAS number of 1317-65-3.

In the present invention, the titanium dioxide refers to a compound having a CAS number of 13463-67-7.

Specifically, the composition comprises 0.01 to 5 parts by weight of ethylene glycol, 0.01 to 5 parts by weight of butyl cellosolve, 20 to 50 parts by weight of calcium carbonate, 0.01 to 5 parts by weight of titanium dioxide, Weight part.

The present inventors have come to realize the idea in natural extracts while searching for a composition for improving crack resistance. The present inventors have found that the effect of crack resistance is remarkably improved when the composition further contains flaxseed mucus or flaxseed mucilage extract. That is, when ethylene glycol, butyl cellosolve, calcium carbonate, titanium dioxide and water, and flaxseed mucilage or flaxseed mucilage extract are additionally contained in the composition for building and repair containing the acrylic binder, The present invention has been completed through confirmation.

In the present invention, flax is an annual herbaceous herbaceous herbaceous plant of the dicotyledonous plant, and the seed is flat, long elliptical and yellowish brown.

In the present invention, the flaxseed mucilage can be produced by various methods, but for example, a mulberry slime can be prepared by scraping mucous from flaxseed with a scraper.

In the present invention, the flaxseed mucus extract may be prepared by way of example as follows.

1 g of flaxseed was put into 50 L of purified water and stirred at 25 ° C for 5 hours and then filtered through a 300-mesh filter cloth. The same amount of alcohol, preferably ethanol, was added to the filtrate to precipitate the wastewater, Only filter paper NO. 5, and dried to obtain a white powdery form.

Conventionally, various uses for flaxseed have been known. However, the effect of improving the crack resistance by incorporation into a composition for repairing a building structure as in the present invention has not been known to date, and research has been limited.

Specifically, the composition may contain 1 to 10 parts by weight of the flaxseed mucilage or the flaxseed mucilage extract.

The composition for repairing a building structure may further include at least one additive selected from a dispersant, an antifoaming agent, an antimicrobial agent, an antiseptic, and an antifreezing agent within a range that does not impair the basic physical properties of the composition for repairing a building structure.

The present invention also provides a method of manufacturing a building structure, comprising: S1) removing a deteriorated portion of a surface of a building structure; And S2) cracking and repairing of the structure may be performed by coating and drying the composition for repairing the building structure on the surface of the building structure from which the deteriorated portion has been removed to form a cracking repair film.

Hereinafter, the structure and effects of the present invention will be described in more detail with reference to specific examples and comparative examples. However, this embodiment is intended to explain the present invention more specifically, and the scope of the present invention is not limited to these embodiments.

Material preparation

The main raw materials used in the composition for repairing a building structure for the following examples and evaluation examples are as follows.

1) Acrylic binder: Acrylic ester copolymer CAS NO 30445-28-4

2) EVA binder: ethylene vinyl acetate CAS NO 24937-78-8

3) butylcellosolve: CAS NO 111-76-2

4) TEXANOL: CAS NO 25265-77-4

5) Propylene glycol: CAS NO 57-55-6

6) Ethylene glycol: CAS NO 107-21-1

7) Calcium carbonate: CAS NO 1317-65-3

8) Titanium dioxide: CAS NO 13463-67-7

9) 2-Amino-2-methyl-1-propanol: CAS NO 124-68-5

10) 2-Methylamino-2-methyl-1-propanol: CAS NO 27646-80-6

11) flaxseed mucus

The scum was used to scrape the mucous from flaxseed to obtain flaxseed mucilage.

12) Flaxseed mucus extract

1 g of flaxseed was put into 50 L of purified water, stirred at 25 ° C for 5 hours, and then filtered through a 300-mesh filter cloth. The same amount of ethanol was added to the filtrate to precipitate. 5, and dried to obtain about 0.2 g of a white powder.

Example 1

30 parts by weight of an acrylic binder was placed in a mixing tank, and 5 parts by weight of EVA binder, 1 part by weight of butyl cellosolve, 0.5 part by weight of rosin, 0.5 part by weight of texanol, 0.1 part by weight of propylene glycol and other viscosity auxiliary agents , a pH adjusting agent, and the like were gradually added in this order, and 50 parts by weight of calcium carbonate as a filler was added and stirred at a speed of 300 rpm for 1 hour at room temperature to prepare a composition for repairing a building structure.

Example 2

30 parts by weight of an acrylic binder was placed in a mixing tank, and 5 parts by weight of EVA binder, 1 part by weight of butyl cellosolve, 0.5 part by weight of rosin, 0.5 parts by weight of texanol, 0.1 part by weight of propylene glycol, Amino-2-methyl-1-propanol, 0.06 part by weight of 2-methylamino-2-methyl-1-propanol and other thickening assistants and pH adjusting agents were gradually added in this order and 50 parts by weight of calcium carbonate And the mixture was stirred at room temperature for 1 hour at a rate of 300 rpm to prepare a composition for repairing a building structure.

Example 3

30 parts by weight of an acrylic binder was placed in a mixing tank and stirred at 600 rpm at a rate of 1 part by weight of ethylene glycol, 1 part by weight of butyl cellosolve, 0.5 part by weight of titanium dioxide, 5 parts by weight of water and other viscosity aids, And 50 parts by weight of calcium carbonate as a filler were added and stirred at a speed of 300 rpm for 1 hour at room temperature to prepare a composition for repairing a building structure.

Example 4

30 parts by weight of an acrylic binder was added to a mixing tank, and 1 part by weight of ethylene glycol, 1 part by weight of butyl cellosolve, 0.5 part by weight of titanium dioxide, 5 parts by weight of water, 5 parts by weight of flaxseed extract and flaxseed extract And other pH adjusters were added in order. Then, 50 parts by weight of calcium carbonate as a filler was added and stirred at a speed of 300 rpm for 1 hour at room temperature to prepare a composition for repairing a building structure.

Evaluation example 1

The deteriorated parts of the civil engineering structure were removed, and the repair compositions for the building structures of Examples 1 to 4 were painted and dried, respectively, to form a crack repair film. The properties of the thus obtained crack repair film were evaluated based on the test methods on the KS standard and KSL 1593 for the adhesive strength, crack resistance and skid resistance and the storage stability of the crack repairing composition, and the results are shown in Table 1 below. Also, in case of waterproof property, the degree of water absorption into the interior after formation of the crack repair film was evaluated by the 5 point scale method. In Table 1, Product X represents a product for repairing a building structure of a building structure B, which is commercially available in Korea, and is evaluated as a comparative object to the composition of Examples 1 to 4.

[Table 1]

As shown in Table 1, it can be confirmed that the compositions for repairing building structures of Examples 1 to 4 have improved water resistance, water resistance and crack resistance compared with the product X, and that the storage stability and slip resistance are also satisfactory . Particularly, in Examples 1 and 2 of the present invention, it was confirmed that the waterproof property and the water resistance were evaluated more favorably, and in Examples 3 and 4, the crack resistance was further evaluated.

It will be apparent to those skilled in the art that the above-described embodiments are for illustrative purposes only and that those skilled in the art will readily understand that various changes and modifications can be made without departing from the spirit or scope of the present invention. You will understand. It is therefore to be understood that the above-described embodiments are to be considered in all respects only as illustrative and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

It is to be understood that the scope of the present invention is defined by the appended claims rather than the foregoing description and should be construed as including all changes and modifications that come within the meaning and range of equivalency of the claims, .

10, 10a: Portable Reconnaissance Camera
20, 30, 40: movable lifting device having a hydraulic jack
100: shock absorbing part 110: vibration damping part
120: support part 130: height adjustment part
200: photographing unit 210: upper unit
211: unit body 212: infrared camera
213: laser pointer 214: front light
215: camera 216: protective frame
217: drive control unit 220: lower unit
221: rear light 222: display
310: lower frame 320; Upper frame
400: Hydraulic jack 500; Elastic support
600; Load Dispersion Unit 700:
800: remote control unit

Claims (2)

An impact absorbing portion for absorbing impact; And
And a photographing unit connected to the upper side of the shock absorbing unit and configured to photograph an image,
The shock absorber is installed on an outer frame of the vehicle to absorb impact transmitted from the vehicle,
The photographing section photographs a video around the vehicle,
The shock absorber may include a plurality of vibration dampers installed to be spaced apart from each other in an outer frame of the vehicle and absorbing impact transmitted from the vehicle to attenuate vibration; A support for forming a plurality of frames extending radially from the flat plate frame and coupled to the vibration damping unit; And a height adjusting unit installed between the photographing unit and the branch frame to adjust a mounting height or a horizontal position of the photographing unit,
The photographing unit includes an upper unit; And a lower unit connected to a lower side of the upper unit to adjust a connecting angle between the lower unit and the upper unit, the lower corner being supported by the height adjusting unit,
Wherein the upper unit includes a unit body connected to an upper side of the lower unit; An infrared camera installed on one side of the upper portion of the unit main body for tracking or detecting the heat of an object positioned in front of the vehicle and taking an image; A laser pointer installed at a lower front side of the thermal imaging camera and emitting a laser beam to an object; A front light installed on one side or both sides of the lower portion of the unit main body and illuminating the front of the vehicle using LEDs; A camera installed on the other side of the upper portion of the unit main body for photographing an image of an object located in front of the vehicle; A protection frame formed of a plurality of vertical frames and a plurality of horizontal frames connected to each other and covering the upper portion of the unit body to protect the unit body; And a drive control unit installed in an internal space of the unit main body and controlling driving of each device,
Wherein the lower unit is provided with a rear light for illuminating the rear of the vehicle using LEDs and a display unit for indicating a connection angle of the upper unit or an ON / OFF state of power supplied to the apparatus,
Further comprising a remote control unit connected to the drive control unit through a wired or wireless network for transmitting and receiving data, receiving a drive of each device from a user, generating a drive control signal corresponding thereto, and transmitting the generated drive control signal to the drive control unit,
The portable lifting device according to claim 1, further comprising a movable lifting device having a hydraulic jack for lifting or lowering the shock absorber so as to mount the shock absorber on an upper side and adjust a photographing height of the photographing part,
The portable lifting device provided with the hydraulic jack includes a lower frame having moving means on a lower surface thereof and having at least one column whose length is variable on an upper surface thereof; An upper frame supported by the at least one post and disposed in parallel with the lower frame; A hydraulic jack installed between the lower frame and the upper frame for raising and lowering the upper frame using an external force provided by a user to raise and lower an object placed on the upper frame; And a drop preventing portion provided on both sides of the hydraulic jack and including a resilient supporting portion supporting the upper frame using an elastic force when the upper frame drops and a load dispersing portion supporting the lower side of the elastic supporting portion,
The hydraulic jack includes a main body in which a working fluid is stored and in which an inner cylinder and a lifting piston are disposed; A pressure piston provided outside the main body and communicating with the main body to maintain a closed state, and a pressure piston is formed inside the main body, and when the pressure piston is lowered after the working fluid is sucked as the pressure piston rises, An outer cylinder for providing a working fluid to the inner cylinder; A pressure lever connected to the pressure piston disposed inside the outer cylinder to transmit an external force provided by the user to the pressure piston; And a release valve releasing the pressure of the inner cylinder according to an operation of a user to return the working fluid introduced into the inner cylinder to the main body,
Wherein the plurality of outer cylinders comprises a first outer cylinder formed along a central axis coaxial with the pressure lever and at least one second outer cylinder disposed along the diameter of the first outer cylinder Wherein the sum of the diameters of the first outer cylinder and the at least one second outer cylinder is 1/3 or less of the diameter of the inner cylinder,
The first outer cylinder and the at least one second outer cylinder are connected to the main body through a suction pipe for introducing a working fluid stored in the main body,
The hydraulic jack further includes control means for selectively opening and closing a plurality of suction pipes formed in the first outer cylinder and at least one of the second outer cylinders to vary the braking force of the pressure piston,
Wherein the elastic supporting portion comprises: a supporting frame supporting the upper frame when the upper frame falls; Four support plates supporting the support frame seated on the upper side; Four pairs of support frames including a first frame and a second frame rotatably connected to lower portions of the four support plates; The first frame is connected to the upper side in such a manner that the first frame can pivot and slide in the horizontal direction, and the second frame is connected to the first frame in such a manner that the second frame can be rotated and vertically slidably moved. Comprising a column,
The supporting column includes: a pillar body formed in a square pillar shape; &Quot; + " in the upper portion of the column body; A cross elastic portion formed in a shape corresponding to the shape of the cross groove and inserted in the cross groove and connected to the upper portion of the four branches so that the lower side of the first frame is rotatable; Four vertical grooves formed vertically on each side of the column body; And four vertical elastic parts formed in a shape corresponding to the shape of the vertical grooves and respectively inserted into the vertical grooves and connected to the upper outer side so that the lower side of the second frame is rotatable,
Wherein the cross-elastic portion comprises: a cross-shaped case portion having an internal space formed in an " + "shape; An upper support portion formed as a cube and disposed at a central portion of the cross case portion; Four upper elastic portions disposed on respective side surfaces of the upper support portion; Four upper elastic supporting portions disposed at the ends of the branches of the inner space of the cross case portion and supported by the elastic force of the upper elastic portion; And a support bar provided at one end of each branch of the cross groove and provided between a side face of the cross housing and the upper elastic support, And four upper connecting link portions connected to the lower side so as to be rotatable and slidable along the grooves of the cruciform groove in the center direction in which respective branches of the cross grooves meet,
Wherein the vertical elastic part comprises: a vertical case part having a shape corresponding to the shape of the vertical groove in which the internal space is empty; A side supporting part formed in a cube and disposed in a lower space of the vertical case part; A side elastic portion disposed on the upper side of the side support portion; A side elastic support portion disposed above the inner space of the vertical case portion and supported by the elastic force of the side elastic portion; And a support bar disposed at an upper end of the vertical groove and provided between a lower side opposed to the vertical case and an upper side of the side elastic support, And a side connecting link portion that is slidably moved along the groove of the vertical groove in a downward direction of the vertical groove,
The load distributing unit distributes a load externally applied to the ball housing from the inside of the ball housing to finally transmit a load smaller than a load externally applied to the ball housing,
The ball housing is provided with a plurality of small balls for support and a spherical hollow portion in which a ground ball is received,
The small balls for support are regularly arranged and received so as to contact with each other along the outer circumferential surface of the hollow portion,
Wherein the ground ball is held in the hollow portion in a state of being mounted on the small ball for support and is held in point contact with the small ball for support and has a ground plane at the top,
And an acrylic binder for filling and repairing cracks when cracks are generated in the structure,
Wherein the composition for repairing an architectural structure further comprises EVA binder, butyl cellosolve, rosin, texanol and propylene glycol,
Wherein the composition for repairing the building structure comprises 0.01 to 10 parts by weight of an EVA binder, 0.01 to 5 parts by weight of butyl cellosolve, 0.01 to 5 parts by weight of rosin, 0.01 to 5 parts by weight of texanol and 0.01 to 3 parts by weight of propylene glycol Weight parts,
Wherein the composition for repairing the building structure further comprises 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-
Wherein the composition for repairing the building structure comprises the 2-amino-2-methyl-1-propanol and the 2-methylamino-2-methyl-1-propanol in a weight ratio of 15 to 20:
Wherein the composition for repairing the building structure further comprises ethylene glycol, butyl cellosolve, calcium carbonate, titanium dioxide and water,
Wherein the composition for repairing the building structure comprises 0.01 to 5 parts by weight of ethylene glycol, 0.01 to 5 parts by weight of butyl cellosolve, 20 to 50 parts by weight of calcium carbonate, 0.01 to 5 parts by weight of titanium dioxide, To 10 parts by weight,
The acrylic binder is an acrylic ester copolymer,
Wherein the composition for repairing an architectural structure comprises 20 to 30 parts by weight of the acrylic binder.
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