KR102112164B1 - sub-door automatic switching unit - Google Patents

Abstract

The present invention relates to an automatic opening and closing device for an auxiliary door. The automatic opening and closing device comprises: a fixed post installed on an entrance door frame or a vertical side of an entrance door; a pivoting post pivotably installed on the fixed post and having upper and lower supports for supporting the auxiliary door; a rotation drive means installed on the upper support and transmitting a driving force for rotating the auxiliary door; a second rotary connector installed on an upper end of the auxiliary door and coupled to a power transmission shaft of the rotation drive means; a control unit installed on the entrance door frame or the auxiliary door and operating the rotation drive means; and a pivoting guide means for connecting the entrance door and the auxiliary door and guiding the upper and lower supports so that the upper and lower supports pivot in a direction opposite to the entrance door at an open position when the auxiliary door rotates. Accordingly, the automatic opening and closing device can automatically open and close the auxiliary door installed on the entrance door and prevent an accident from occurring when a person bumps into the auxiliary door even when the person is located within the radius of rotation where the auxiliary door opens.

Description

Sub-door automatic switching unit

The present invention relates to an automatic opening and closing device for an auxiliary door, and more particularly, to an automatic opening and closing device for an auxiliary door that can automatically open and close an auxiliary door installed together with an entrance door in a building entrance.

In general, in the case of a store entrance, such as a building with a large floating population or a shopping mall, the business is operated with the door always open in consideration of the convenience of access by consumers.

However, the business act of operating the air conditioner while the door is open causes friction with merchants every time as the authorities are in charge of imposing fines as a cause of waste of energy, and pests such as flies and mosquitoes go indoors. There was an incoming problem.

Recently, as a method for solving the above problems, an auxiliary door is installed inside the door.

In the case of the conventional auxiliary door, since it is made lighter than the entrance door, it provides the convenience of opening and closing by the user, but since such auxiliary doors also have the inconvenience of opening and closing by the user, they are always kept open. Accordingly, there is a problem in that it is impossible to effectively block the inflow of heating and cooling energy and pests.

Moreover, the auxiliary door opened and closed by the user has a problem that the auxiliary door is easily damaged when used for a long time with a hinged coupling structure.

In addition, the hinged rotating structure of the auxiliary door is open and closed in the direction in which the other side of the auxiliary door rotates based on the direction of the hinge, so that if a person is located within the radius of rotation of the auxiliary door, there is a high risk of accidental collision with the auxiliary door There was a problem.

Korean Registered Utility Model Publication No. 0437856 (Dec. 26, 2007)

The present invention has been devised to solve the above problems, and automatically closes and closes the auxiliary door installed together with the door at the doorway of the building, and greatly reduces the risk of safety accidents hitting the auxiliary door when opening and closing the auxiliary door. It is to provide an automatic opening and closing device for the auxiliary door.

In order to achieve the above object, the automatic door opening and closing device according to the present invention, a fixed pillar installed on the doorway frame or the vertical side of the door; A pivoting column installed on the fixed column and having upper and lower supports for supporting the auxiliary door; A rotation driving means installed on the upper support and transmitting a driving force for rotating the auxiliary door; A second rotating connector installed on the upper side of the auxiliary door and coupled to the power transmission shaft of the rotating driving means; A control unit installed on the door frame or auxiliary door and operating the rotary driving means; And a turning rotation inducing means connecting between the door and the auxiliary door and guiding the upper and lower supports to be rotated in a direction opposite to the door of the open position when the auxiliary door rotates. Is done.

The turning rotation inducing means is a guide member extending to a length corresponding to the width of one side of the door, a fixed bracket fixedly installed on one side of the auxiliary door, connected to the fixed bracket, and slide along the longitudinal direction of the guide member It is characterized by consisting of a moving moving pulley.

It is characterized in that it consists of an elastic connecting portion that elastically connects between the movable pulley and the fixed bracket.

The second rotary connector is fixed to the auxiliary door, and a fixed housing having a fastening groove in the center, one side is formed with a fastening protrusion that is detachably coupled to the fastening groove, and the other side is axially coupled to the power transmission shaft. It is characterized by consisting of a rotating flange forming a groove.

The second rotary connector is characterized in that the driving member damage prevention member is installed to prevent damage to the rotary drive means when the auxiliary door is forcedly rotated by external pressure.

The drive unit damage preventing member is a plurality of through holes penetrating in the direction from the outside toward the inside with respect to the circumferential direction of the fixed housing, the tension spring installed in the through hole, the torque adjusting bolt is coupled to the rear of the tension spring, It is characterized in that it is formed of a plurality of receiving grooves that are formed in the circumferential direction of the fastening protrusion, and the pressure contact part interposed between the tension spring and the fastening protrusion.

According to the present invention having the configuration as described above, by configuring a rotation driving means and a rotational rotation inducing means for transmitting the driving force to swing the auxiliary door, it is possible to automatically open and close the auxiliary door installed in the door, Even if a person is located within the radius of rotation where the auxiliary door is opened, there is an effect of preventing a safety accident from hitting the auxiliary door.

In addition, the rotation drive means is installed on the support, it is possible to apply a product having the minimum driving force to rotate the auxiliary door as the rotational rotation is always made with the auxiliary door at the center position in the width direction of the auxiliary door. In addition to being able to implement the overall size compactly, there is an effect of significantly lowering manufacturing cost and maintenance cost.

1 is a perspective view showing an automatic door opening and closing device according to an embodiment of the present invention.
FIG. 2 is a front view of FIG. 1.
FIG. 3 is a partially enlarged view showing the configuration of the rotation driving means of FIG. 1.
FIG. 4 is an exploded perspective view showing the configuration of the second rotating connector of FIG. 1 and a driving member damage preventing member.
FIG. 5 is a cross-sectional view of FIG. 4.
6 is a cross-sectional plan view showing the interaction between the second rotating connector and the drive unit damage preventing member.
7 is a plan view schematically showing the rotational rotation of the support of FIG. 1 and the swing rotation of the auxiliary door.
8 is a partially enlarged perspective view showing a turning rotation guiding means connecting the door and the auxiliary door.
9 is a plan view showing the operation of the turning rotation inducing means of FIG.
10 is a perspective view sequentially showing the operating state of the automatic door opening and closing device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the automatic door opening and closing device according to the present invention will be described in detail with reference to the accompanying drawings.

For reference, the terms and words used in the present specification and claims should not be construed as being limited to ordinary or lexical meanings, and the inventor appropriately explains the concept of terms in order to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

In addition, the configuration shown in the embodiments and drawings described in this specification is only one of the most preferred embodiments of the present invention, and does not represent all of the technical spirit of the present invention. It should be understood that there may be various equivalents and variations.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 to 10.

As shown in the drawing, the automatic door opening and closing device according to the present invention is a fixed column 100 installed on a vertical side of an entrance door frame 10 or a door 20, and pivotably installed on the fixed column 100 1 pivot connector 200 having an upper support 210a and a lower support 210b for supporting the rotating connector 300 and the auxiliary door 30, installed on the upper support 210a, and provided with the auxiliary door 30 ) A rotation driving means 400 for transmitting a driving force to rotate, a second rotation connector 500 installed on the upper side of the auxiliary door 30 and coupled to the power transmission shaft 421 of the rotation driving means 400, Swivel rotation inducing means installed on the door frame 10 or the auxiliary door 30 to operate the rotary driving means 400, connecting the door 20 and the auxiliary door 30 700).

First, the fixed column 100 is installed on the vertical side of the door frame 10 or the door 20, and is manufactured in a plate structure extending to a length corresponding to the vertical side of the door frame 10 or the door 20 This is done.

The fixed column 100 performs an axial role of stably supporting the loads of the pivot column 200 and the auxiliary door 30, which will be described later.

The pivot column 200 is installed on one side of the fixed column 100, and serves to perform rotational movement.

The pivot column 200 is preferably manufactured in the shape of a cylinder, but is not limited thereto, and may be manufactured in the shape of a square column.

The upper and lower supports 210a and 210b, which extend in a linear direction toward the outside, are formed at the upper and lower portions of the pivot 200 according to the present invention.

The upper and lower supports 210a and 210b are configured to support the upper and lower surfaces of the auxiliary door 30, respectively, and the extended length does not exceed the center of the entire length of the width of the auxiliary door 30. It is preferable to manufacture.

In addition, a protective case 211 is installed at the end of the upper support 210a to securely protect the rotary drive means 400 to be described later, and the auxiliary door 30 and the hinge are connected at the end of the lower support 210b. The hinge fastening part 212 is formed.

On the other hand, the first rotary connector 300 is that the upper support (210a) and the lower support (210b) of the pivot pillar 200 is installed to be pivotable, the upper and lower ends of the fixed column (100) The first fixed housing 310 is installed, and one end is coupled to the upper and lower ends of the pivot column 200, and the other end is coupled to the first fixed housing 310 and configured to rotate with a first rotating flange 320 do.

In addition, between the first fixed housing 310 and the first rotating flange 320, it is preferable to install a bearing (not shown) so that the rotational motion can be further improved.

The rotation driving means 400 is installed on the upper support 210a of the pivot column 200 and serves to transmit driving force for rotating the auxiliary door 30.

The rotation driving means 400 is composed of a motor 410 and a reducer 420 having a power transmission shaft 421 connected to the motor 410 to reduce the rotational speed of the motor and increase torque.

That is, the rotation driving means 400 may automatically open and close the auxiliary door 30 by transmitting power for rotating the auxiliary door 30.

The motor 410 and the reducer 420 are installed in the protective case 211 described above, but a portion of the power transmission shaft 421 of the reducer 420 is exposed to the outside. In this way, the motor 410 and the reducer 420 installed inside the protective case 211 can be safely protected from external shocks and can prevent foreign substances from entering.

The rotation driving means 400 according to the present invention is installed on the upper support 210a and rotates the auxiliary door 30 as the rotational rotation with the auxiliary door is always performed at the central position in the width direction of the auxiliary door 30 Since the motor 410 having the minimum driving force that can be applied can be applied, it is possible to implement the overall size compactly accordingly, and has an effect of significantly lowering manufacturing cost and maintenance cost.

The second rotating connector 500 is installed on the upper side of the auxiliary door 30, and receives rotational force from the power transmission shaft 421 of the rotating driving means 400 to rotate the auxiliary door 30 To perform.

Specifically, the second rotary connector 500 is fixedly installed on the auxiliary door 30 and fixed housing 510 having a fastening groove 511 in the center, one side detachably coupled to the fastening groove 511 This fastening protrusion 521 is formed, and the other side is composed of a rotating flange 520 that forms a shaft engaging groove 522 coupled to the power transmission shaft 421 of the reducer 420.

That is, when the rotation flange 520 coupled to the power transmission shaft 421 of the reducer for reducing the rotational force of the motor 410 is rotated, the second rotation connector 500 is fixed to the rotation flange. The housing 510 also rotates. Therefore, the auxiliary door 30 connected to the fixed housing 510 is rotated.

Here, the rotation of the auxiliary door 30 is a swing rotation that is located on the other side of the door 20 away from the pivot column 200, one side close to the pivot column 200.

In addition, the second rotary connector 500 has a driving unit damage preventing member 550 for preventing the rotation drive means 400 from being damaged when the auxiliary door 30 is forcibly rotated by external pressure. Is installed.

Specifically, the driving unit damage prevention member 550 is a plurality of through holes 551 penetrating in the direction from the outside to the inside with respect to the circumferential direction of the fixed housing 510, tension installed in the through hole 551 Spring 552, a torque adjusting bolt 553, which is coupled to the rear of the tension spring 552, a pressure contact 554 interposed between the tension spring 552 and the fastening protrusion 521, the fastening protrusion ( It is formed in the circumferential direction of 521 and is composed of a plurality of receiving grooves 555 accommodating a portion of the pressing contact portion 554.

That is, when the auxiliary door 30 is forcibly rotated by external pressure, the configuration of the pressure contact portion 554 interposed between the fixed housing 510 and the rotating flange 520 is unable to rotate the rotating flange 520 By rotating only the fixed housing 510, it is possible to prevent the rotation driving means 400 from being damaged.

Of course, the phenomenon in which the fixed housing 510 is idle corresponds to a case in which an external pressure greater than the rotational force of the rotation driving means 400 is applied (dotted arrow in FIG. 6).

The control unit 600 is installed on the door frame 10 or the auxiliary door 30, and serves to operate the rotation driving means 400.

The control unit 600 may be configured as a button-type sensor that is pressed and pressed directly by an access person or a short-range monitoring sensor that operates when a person in the vicinity is detected.

On the other hand, the turning rotation inducing means 700 is to connect between the door 20 and the auxiliary door 30, the upper and lower supports 210a, 210b are opened when the auxiliary door 30 rotates. It serves to guide so that a turning rotation can be made in a direction opposite to the door 20 of the opened position.

That is, it is a configuration that allows the rotation of the upper and lower supports 210a and 210b to be rotated together by using the power to rotate the auxiliary door 30.

Specifically, the turning rotation inducing means 700 is extended to a length corresponding to the width on one side of the door 30, but forms a hollow space portion 711 inside and the space portion 711 on the outer surface ) Guide member 710 forming a guide hole 712 communicating with the fixing bracket 730 fixedly installed on one side of the auxiliary door 30 and connected to the fixing bracket 730 and the guide member ( It consists of a moving pulley 720 that slides along the longitudinal direction of 710).

And, as a component connecting the movable pulley 720 and the fixed bracket 730, it is preferable to manufacture the elastic connecting portion 740 using a spring, but is not limited to this, and may be made of a straight elastic lever or a metal connecting ring. Can be produced.

That is, when the auxiliary door 30 is open, one side of the auxiliary door 30 close to the pivot column 200 rotates in the direction toward the entrance door 20 to move away from the pivot column 200 ( 20) In the swing rotation process of moving to the other side, the moving pulley 720 installed on the guide member 710 is linearly moved, and at this time, the linear movement of the moving pulley 720 pulls the auxiliary door 30 By applying a force, the upper support 210a can be naturally rotated toward the door 20. Of course, the closing action of the auxiliary door 30 is performed in the reverse order of the opening action.

The movable pulley 720 according to the present invention comprises a body portion 721 having a size that can be inserted into the space portion, and a roller 722 installed on both side surfaces of the body portion 721.

The movable pulley 720 moves to a state in contact with one inner wall of the guide member 710 when the auxiliary door 30 is open, and moves to a state in contact with the other inner wall of the guide member 710 during the closing action. .

This is to prevent the roller 722 of the movable pulley 720 from contacting both surfaces of the guide member 710 from reducing the moving speed due to the increase in the frictional force.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope of the present invention without departing from the technical spirit of the present invention. It will be obvious to those of ordinary skill.

100: fixed column 200: swivel column
210a: upper support 210b: lower support
300: first rotating connector 400: rotating driving means
500: second rotating connector 550: drive unit damage prevention member
600: control unit 700: turning rotation induction means

Claims (6)

A fixed pillar installed on the door frame or the vertical side of the door;
A pivoting column installed on the fixed column and having upper and lower supports for supporting the auxiliary door;
A rotation driving means installed on the upper support and transmitting a driving force for rotating the auxiliary door;
A second rotating connector installed on the upper side of the auxiliary door and coupled to the power transmission shaft of the rotating driving means;
A control unit installed on the door frame or auxiliary door and operating the rotary driving means; And,
It characterized in that it comprises a rotating rotation inducing means for connecting between the door and the auxiliary door and guiding the upper and lower supports to be rotated in a direction opposite to the door of the opened position when the auxiliary door rotates. Automatic door opening and closing device.
According to claim 1,
The turning rotation induction means,
A guide member extending to a length corresponding to the width of one side of the door,
Fixing bracket fixed to one side of the auxiliary door,
Automatic opening and closing device for the auxiliary door, characterized in that it is connected to the fixed bracket and consists of a moving pulley that slides along the longitudinal direction of the guide member.
According to claim 2,
Automatic opening and closing device for the auxiliary door, characterized in that it consists of an elastic connecting portion that elastically connects between the movable pulley and the fixed bracket.
According to claim 1,
The second rotary connector,
A fixed housing fixed to the auxiliary door and having a fastening groove in the center,
One side is an automatic opening and closing device for the auxiliary door, characterized in that the fastening projection is formed with a detachable coupling with respect to the fastening groove, and the other side is composed of a rotating flange formed with a shaft engaging groove coupled to the power transmission shaft.
The method of claim 4,
An automatic opening and closing device for the auxiliary door, characterized in that the second rotating connector is provided with a driving unit damage preventing member for preventing the rotation driving means from being damaged when the auxiliary door is forcedly rotated by external pressure.
The method of claim 5,
The drive unit damage preventing member is a plurality of through-holes penetrating in the direction from the outside to the inside with respect to the circumferential direction of the fixed housing, the tension spring installed in the through-hole, the torque adjustment bolt is coupled to the rear of the tension spring, Automatic opening and closing device for the auxiliary door, characterized in that it consists of a plurality of receiving grooves that are formed in the circumferential direction of the fastening protrusion and the pressure contact part interposed between the tension spring and the fastening protrusion.

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