JP6398142B2 - Gate survey device - Google Patents

Description

  The present invention relates to an investigation device for a gate installed in a sewerage facility or the like.

  Generally, the inflow part of a sewage treatment plant is provided underground, and there are many cases where a gate is attached at a deep position of 10 m or more from the ground. As shown in FIG. 6, normally, the gate body G has a structure in which the door body G1 is opened and closed by an opening / closing machine S installed on the ground, and a gate connecting rod (hereinafter simply connected) extending in the vertical direction. It is connected to the opening and closing machine S by B). When the gate main body G is in a deep position, the connecting rod B is composed of a plurality of members connected by a joint C. Since it is necessary to perform maintenance, replacement, etc., the connecting rod B is accommodated in a vertical hole R of a concrete frame that is at least large enough for an operator to enter.

  Many sites are in an oxygen deficient or toxic gas atmosphere due to hydrogen sulfide generated from spoiled sewage, and even in the vertical hole R, the corrosion of the body wall, connecting rod B, joint C, etc. is likely to proceed. When an operator enters the vertical hole R to investigate the corrosion state of these members, the human body is affected by the atmosphere. When substantial manual work such as repair or replacement is involved, the operator enters the vertical hole R after taking appropriate measures. Entering a bad environment is not desirable.

  As a method for solving this problem, it is conceivable to investigate the inside of the vertical hole R with a remote device. Although it is not an investigation device relating to a gate, Patent Document 1 describes a diagnostic device for diagnosing the inside of a chimney by mounting a television camera and a lighting fixture.

JP 2010-236265 A

  The technique of Patent Document 1 uses a crane as the lifting and lowering of the apparatus, which is a large-scale and costly diagnostic operation. In addition, since it is difficult to perform detailed rotation control operation of the diagnostic device using a crane, a turning control device as described in the same document becomes indispensable, and the manufacturing cost of the diagnostic device itself increases.

  The present invention was created to solve the above-described problems, and has an object to provide a gate inspection apparatus that is easy to operate and inexpensive to manufacture.

In order to solve the above-mentioned problem, the present invention is a gate investigation device for investigating a gate installed in a vertical hole, and a stand installed so as to be spanned over an edge of an upper end opening of the vertical hole, A rotating guide pedestal having an annular traveling table attached to the gantry, and an apparatus main body that is rotatably installed around the axis of the traveling table on the traveling table via a traveling roller. The apparatus main body includes a frame body having the traveling roller at a lower end, a lifting motor attached to the frame body, a wire drum supported by the frame body and rotated by the lifting motor, and at least a television equipped with a camera and a lighting device, a lifting unit for lifting the inside of the longitudinal hole hung on wound wire to said wire drum includes, before The wire drum is composed of first to third wire drums, the lifting unit is suspended at three points by the wires of the first to third wire drums, and the posture of the lifting unit is controlled by the lifting motor. It is characterized by being.

According to this gate investigation device, the following effects are produced.
(1) The gate investigation device can be set at the investigation site by a simple operation of simply hanging a frame over the edge of the upper end opening of the vertical hole.
(2) Since the rotation guide base and the apparatus main body are divided and configured, they can be individually carried into and out of the site, and are not bulky to carry.
(3) Since the apparatus main body is configured to travel on the travel table via the travel roller, the orientation of the apparatus main body can be changed over 360 degrees with a simple and quick manual operation.
(4) Since the apparatus main body is configured to include the frame body, the lifting motor, the wire drum, and the lifting unit, the structure of the apparatus main body can be simplified and the manufacturing cost is reduced.

Further, according to the present invention, the elevating motor is composed of a first elevating motor and a second elevating motor, the first wire drum is rotated by the first elevating motor, and the second wire drum and the third wire drum are The two elevating motors rotate synchronously, and the first elevating motor and the second elevating motor are individually controlled to rotate, whereby the attitude of the elevating unit is controlled.

  According to this gate inspection device, the lifting unit can be stably controlled to a desired posture with a simple structure. The lifting unit needs only a simple configuration to mount at least a TV camera and a lighting device, so that the weight is reduced, and the specifications of the lifting motor are low-cost with a small output.

  According to the present invention, a gate can be surveyed by using a gate surveying apparatus that is easy to operate and inexpensive to manufacture, without an operator entering.

It is explanatory drawing at the time of installing the gate investigation apparatus of this invention in the upper end opening part of a vertical hole, (a), (b) is a top view and a side view, respectively. It is a top view (a raising / lowering unit is abbreviate | omitted) of the gate investigation apparatus of this invention. It is a side view of the gate investigation device of the present invention. It is a top view of a raising / lowering unit. It is a side view of a raising / lowering unit. It is a side view which shows a gate and a vertical hole.

  The gate investigation device 1 of the present invention shown in FIG. 1 is used for investigation of the connecting rod B, the gate main body G, the inner wall of the vertical hole R, etc. shown in FIG. The vertical hole R has a rectangular cross section of a size that can be inserted by an operator, and extends vertically between the underground gate chamber and the ground. In FIG. 6, the gate is a connecting rod that connects the gate main body G installed in the gate chamber, the switch S installed on the ground through the inside of the vertical hole R, and the door G1 of the gate main body G. B. The door body G1 moves up and down with respect to the door contact of the gate main body G through the connecting rod B by driving the opening / closing device S. When the gate main body G is in a deep position, the connecting rod B is composed of a plurality of members connected by a joint C. Reference sign D is an intermediate bearing.

  Note that the vertical hole R has a rectangular cross section having a size indicated by “L1 × L2” in FIG. 1A over almost the entire length thereof, but the ceiling wall of the concrete frame projects over the upper end opening R1. It opens with a slightly small rectangular cross section indicated by “L1 × L3”. The opening / closing machine S is installed on the upper surface of the overhanging portion, and the connecting rod B is extended to the lower vertical hole R through a through hole drilled in the overhanging portion.

  The gate inspection device 1 includes a gantry 2 installed so as to be stretched over the edge of the upper end opening R1 of the vertical hole R, a rotating guide pedestal 4 having an annular traveling table 3 attached to the gantry 2, and a traveling roller. And a device main body 5 that is rotatably installed around the axis O of the travel table 3 on the travel table 3.

"Rotating guide base 4"
In FIG. 2, the gantry 2 is composed of a pair of channel steels separated from each other in parallel, for example. The travel table 3 is a member in which a cross-sectional portion having a concave groove shape is formed in an annular shape centering on an axis O, and bolts and nuts (not shown) are provided via brackets 7 and 7 attached to the outer peripheral portion thereof. Is attached to the gantry 2.

"Device body 5"
2 and 3, the apparatus main body 5 includes a frame frame 8 having a traveling roller 6 at the lower end, a lifting motor 9 attached to the frame frame 8, and a lifting motor 9 supported by the frame frame 8. A rotating wire drum 10, and at least a television camera 11 and an illuminating device 12 are mounted, and an elevating unit 14 that is suspended by a wire 13 wound around the wire drum 10 and moves up and down in the vertical hole R is provided. It is configured.

  The frame frame 8 is made of, for example, a mold framed in a rectangular shape. The mold material is an aluminum alloy extrusion mold material or the like. Casters are attached as traveling rollers 6 to the lower four corners of the frame body 8, respectively. An elevating motor 9 is attached to a frame side 8 </ b> A constituting one side of the upper four sides of the frame frame body 8. Specifically, the elevating motor 9 includes a first elevating motor 9A and a second elevating motor 9B, each of which has a horizontal output shaft and is fixed to a vertical flat plate-like bracket 15 attached to the frame side 8A with bolts. Is done. The first elevating motor 9A and the second elevating motor 9B are, for example, motors with electromagnetic brakes, and output gears 16 and 17 are attached to the output shafts.

  Near one end of the frame side 8A, a drum shaft 19 is supported via a bearing 18 on the upper surface of the frame side 8A and the upper surface of the frame side 8B opposite to the frame side 8A. The drum shaft 19 has a first wire drum 10 </ b> A integrally mounted as the wire drum 10 substantially at the center in the axial direction, and a transmission gear 20 that meshes with the output gear 16 is mounted on one end. .

  The drum shaft 21 is similarly supported via the bearing 18 near the other end of the frame side 8A. While one wire drum 10 (first wire drum 10A) is axially attached to the drum shaft 19, the second wire drum 10B and the third wire drum 10C are mutually connected to the drum shaft 21 as two wire drums 10. Axially spaced. A transmission gear 22 that meshes with the output gear 17 is attached to one end of the drum shaft 21. The first to third wire drums 10 </ b> A to 10 </ b> C are arranged at substantially equal intervals on a circumference centered about the axis O in plan view.

  3 to 5, the elevating unit 14 is suspended at three points by the wires 13 of the first to third wire drums 10 </ b> A to 10 </ b> C. The elevating unit 14 includes a frame body 23 that is generally framed in a horizontal rectangular shape. Ring-shaped hooks 24, 24 are attached to both ends of the frame side 23A on one side of the frame 23, and the hooks 24 are also attached to the center of the frame side 23B opposite to the frame side 23A via the protruding frame 23C. ing. The elevating unit 14 is suspended with three points supported by the wires 13 from the first to third wire drums 10A to 10C respectively connected to the three hooks 24. The television camera 11 is attached to the approximate center of the frame side 23 </ b> A via a bracket 25. Further, the lighting device 12 is attached to the remaining two frame sides so as to be positioned above the television camera 11 via a bracket 26 that is spanned. The illumination device 12 is composed of, for example, an LED. The illumination device 12 is attached to the bracket 26 so that the angle can be adjusted.

"Action"
The operator sets the gate investigation device 1 so as to hang the gantry 2 over the edge of the upper end opening R1 of the vertical hole R. Next, the first and second elevating motors 9A and 9B are driven or stopped using a remote controller (not shown). Accordingly, the first to third wire drums 10A to 10C are rotationally controlled via the gear mechanism including the output gears 16 and 17 and the transmission gears 20 and 22, and the lifting unit 14 is suspended by the wires 13 with three points supported. Ascends and stops while being lifted.

  On the monitor (not shown) installed on the ground side, the inner wall of the vertical hole R photographed by the TV camera 11, the connecting rod B, the joint C, the intermediate bearing D, and the gate body G are projected, and the corrosion state or the like is displayed. It is confirmed. The captured image data is appropriately recorded on a recording medium. By changing the posture of the lifting unit 14 by individually controlling the rotation of the first lifting motor 9A and the second lifting motor 9B by the remote control device, the direction of the TV camera 11 can be adjusted up and down. The state inside can be confirmed more accurately. For example, when the operator rotates the apparatus main body 5 by placing his / her hand on the frame body 8, the traveling roller 6 travels on the traveling table 3, so that the direction of the apparatus main body 5 can be easily changed, that is, the direction of the lifting unit 14. Can be changed over 360 degrees around the axis O. Therefore, the inner wall of the vertical hole R can be investigated over 360 degrees by a simple and quick operation.

  As described above, the gate inspection device 1 of the present invention has the gantry 2 installed so as to be spanned over the edge of the upper end opening R1 of the vertical hole R, and the annular traveling table 3 attached to the gantry 2. The rotation guide base 4 and the apparatus main body 5 that is rotatably installed around the axis O of the travel table 3 on the travel table 3 via the travel roller 6 are configured. The apparatus body 5 includes a frame frame 8 having a traveling roller 6, a lifting motor 9 attached to the frame frame 8, a wire drum 10 supported by the frame frame 8 and rotated by the lifting motor 9, At least a television camera 11 and a lighting device 12 are mounted, and an elevating unit 14 that is suspended by a wire 13 wound around a wire drum 10 and moves up and down in the vertical hole R is configured. According to these structures, the following effects are produced.

(1) The gate investigation device 1 can be set at the investigation site by a simple operation of simply hanging the mount 2 over the edge of the upper end opening R1 of the vertical hole R.
(2) Since the rotation guide pedestal 4 and the apparatus main body 5 are divided and configured, they can be individually carried into and out of the site, and are not bulky to carry.
(3) Since the apparatus main body 5 is configured to travel on the travel table 3 via the travel roller 6, the orientation of the apparatus main body 5 can be changed over 360 degrees with a simple and quick manual operation. .
(4) Since the apparatus main body 5 is configured to include the frame body 8, the lifting motor 9, the wire drum 10, and the lifting unit 14, the structure of the apparatus main body 5 can be simplified and the manufacturing cost is low. It becomes.

  Further, the lifting motor 9 is composed of a first lifting motor 9A and a second lifting motor 9B, and the wire drum 10 is synchronously rotated by a first wire drum 10A and a second lifting motor 9B which are rotated by the first lifting motor 9A. The elevator unit 14 is composed of a wire drum 10B and a third wire drum 10C, and the lifting unit 14 is suspended at three points by the wires 13 of the first to third wire drums 10A to 10C, and the first lifting motor 9A and the second lifting motor 9B. If the configuration is such that the posture of the lifting unit 14 is controlled by individually controlling the rotation, the lifting unit 14 can be stably controlled to a desired posture with a simple structure. Since the lifting unit 14 has only a simple configuration in which at least the television camera 11 and the lighting device 12 are mounted, the weight is reduced and the specification of the lifting motor 9 can be inexpensive.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to those described in the drawings, and various design changes can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Gate investigation apparatus 2 Base 3 Traveling table 4 Rotation guide base 5 Apparatus main-body part 6 Traveling roller 8 Frame frame 9 Lifting motor 9A 1st lifting motor 9B 2nd lifting motor 10 Wire drum 10A 1st wire drum 10B 2nd wire drum 10C 3rd wire drum 11 Television camera 12 Illumination device 13 Wire 14 Lifting unit B Connecting rod C Joint G Gate body G1 Door body R Vertical hole R1 Upper end opening S Opening and closing machine

Claims (2)

A gate investigation device for investigating a gate installed inside a vertical hole,
A rotation guide pedestal having a gantry installed so as to be spanned over an edge of the upper end opening of the vertical hole, and an annular traveling table attached to the gantry;
An apparatus main body installed rotatably on the travel table about the axis of the travel table via a travel roller;
The apparatus main body is configured as follows:
A frame body having the traveling roller at the lower end;
A lifting motor attached to the frame body;
A wire drum supported by the frame body and rotated by the lifting motor;
An elevating unit that is equipped with at least a television camera and a lighting device, is suspended by a wire wound around the wire drum, and elevates and lowers inside the vertical hole;
Equipped with a,
The wire drum is composed of first to third wire drums,
The lifting unit is suspended at three points by the wires of the first to third wire drums,
The gate investigation device, wherein the posture of the lifting unit is controlled by the lifting motor . The lifting motor is composed of a first lifting motor and a second lifting motor,
The first wire drum is rotated by a first lifting motor, the second wire drum and the third wire drum are rotated synchronously by a second lifting motor,
The gate investigation device according to claim 1, wherein the posture of the elevating unit is controlled by individually controlling the rotation of the first elevating motor and the second elevating motor.

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