JP3045982U - Pipeline inspection tool - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a pipe inspection tool capable of inspecting the inside of a pipe to be inspected without any trouble even if a crack is generated in the pipe or a weed is prosperous. SOLUTION: A boat-shaped mounting base 2 having an outer diameter smaller than the inner diameter of a pipe to be inspected 24, a camera 4 and a light 3 mounted on a front side 2a of the mounting base 2, and a rear part of the mounting base 2. Operating rod 6 attached to side 2b via fixing means 5
And a cable 1 for transmitting an image signal from the camera 4
And a monitor 7 connected to the monitor 8 to project an image of the camera 4 on a screen 7a.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a pipe inspection tool for inspecting the inside of an underground pipe such as a downspout buried in a retaining wall on which rails of a railway track are laid.

[0002]

[Prior art]

 The railroad tracks have drainage gutters on both sides of the earth retaining laying rails, and buried drainage flutes connecting the pipe ends in these grooves. This gutter consists of a large number of earthen pipes or pipes, and it is necessary to check for cracks and water leakage, as well as to regularly check for the growth of weeds, etc., to prevent clogging. Since this gutter has a length of generally more than ten meters, a conventional small-sized remote control vehicle operated by remote control has been used to inspect the pipeline. This remote control vehicle has a motor driven by a battery built into the body smaller than the inside diameter of the pipeline, and a video camera and a light are attached to the tip side of the body. A lead wire for operating the motor, a cable for transmitting a video signal captured by a video camera, and the like are connected to the remote control car. A remote control operation unit is connected to an end of the lead wire, and a cable end is connected to the end of the cable. Are connected to the respective monitors. When inspecting the pipe of the downspout with this remote control car, the worker places the remote control car at the opening of the pipe, turns on the light, and turns on the video camera and monitor. When an image of the inside of the pipeline is taken by operating the remote control operation unit while the remote control vehicle is moving forward, the image signal at this time is received and the inside of the pipe of the downspout is projected on the screen of the monitor. If cracks, water leakage, or weeds are found during this inspection, repair work and weed removal work will be performed later.

[0003]

[Problems to be solved by the invention]

 By the way, the above-mentioned conventional remote control vehicle needs to be equipped with a plurality of wheels, a transmission mechanism such as gears, a drive motor, a battery, and the like, and has a complicated and large-scale structure. As described above, the special standard remote control vehicles used for inspection of the flutes were expensive, in addition to the necessity of designing and manufacturing. In addition, when using this remote-controlled vehicle to inspect the pipes of the downspout, if large cracks are formed or weeds are growing, the wheels may fall over the cracks or the wheels cannot get over the weeds. There still remained a problem that the remote control car could not move forward, making it impossible to inspect beyond that position. The present invention has been made in view of the above problems, and is a pipeline inspection tool capable of inspecting the interior of a pipe to be inspected without any trouble even if a crack is formed in the pipe or a weed is growing. It is intended to provide.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 of the present invention is directed to a ship-shaped mounting base having an outer shape smaller than the inner diameter of the pipe to be inspected, and a motor mounted on the front side of the mounting base. A camera and a light, an operating rod attached to the rear side of the mounting base via fixing means, a monitor connected via a cable for transmitting an imaging signal from the camera and displaying an image of the camera on a screen, It is characterized by having. The invention according to claim 2 is characterized in that an operating rod constituted by a connecting pipe or an extendable telescopic rod is attached to the fixing means in the invention according to claim 1.

[0005]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the illustrated examples. FIG. 1 is a side view showing the entire configuration of the pipeline inspection tool, FIG. 2 is a plan view of the pipeline inspection tool, and FIG. 3 is a front view of the pipeline inspection tool.

[0006] The pipeline inspection tool 1 is for inspecting an underground gutter 23 buried in a retaining wall 22 on which a rail 21 of a railroad track 20 is laid as a pipe to be inspected, and a mounting base 2, a light 3, and a video camera. 4, an operation stick fixture 5, an operation stick 6, and the like, and a monitor 7 for displaying an image captured by the video camera 4 on a screen. As shown in FIG. 5, the railroad track 20 is provided with drainage gutters 23 on both sides for draining rainfall and snowfall to the earth retaining 22 on which the rails 21 are laid. Then, between the two side grooves 23, a downspout 24 is buried as a drainage pipe. The downspout 24 is formed by connecting a large number of earth pipes or pipes, and the opening 24 a at the end of the pipe faces each of the side grooves 23. When the rail 21 of the railroad track 20 is two tracks, the length of the downspout 24 becomes about 15 m, and the earth retaining 22 is affected by the vibration. It is necessary to conduct periodic surveys to prevent clogging of drainage.

The mounting base 2 of the pipe line inspection tool 1 has a ship-like shape as a whole, and is formed of a synthetic resin material or the like. The mounting base 2 has a lower surface 2c between the front side 2a and the rear side 2b as an inclined surface, so that even if large cracks or weeds grow in the conduit 24b of the downspout 24, the mounting base 2 moves forward without any trouble. , Retreat is possible. A recess 2e is formed on the front side 2a of the flat upper surface 2d, and the equipment holder 8 is arranged, while the operation rod fixing tool 5 is arranged on the rear side 2b. The device holder 8 has a U-shaped member 10 fixed to an upper portion of a base 9, and the base 9 is formed smaller than the recess 2 e of the mounting base 2. The base 9 is rotatably supported with respect to the mounting base 2 by a bolt 11 with a nut, and the U-shaped member 10 holds the video camera 4 and the light 3.

The base 9 is provided with a screw insertion hole from one side to the other side, and the mounting base 2 is also formed with a screw hole from one side toward the recess 2e. Then, as shown in FIG. 3, the screw portion 11a of the bolt with nut 11 is screwed into the screw hole of the mounting base 2 and further screwed into the screw hole of the base 9 to tighten the device through the bolt 11 with nut. The holder 8 is strongly supported by the mounting base 2. When the nut 11b is turned to loosen the bolt 11 with the nut, the angle of the base 9 can be changed within a range of about 30 degrees with respect to the uneven plane 2d of the mounting base 2, and the light 3 and the video camera 4 can be changed. Can be adjusted to a suitable angle. The U-shaped member 10 has a lower plate 10a fixed to the base 9 with bolts, and left and right parallel left and right plates 10b and 10c are erected. Each of the left and right side plates 10b and 10c has a cylindrical support member 3a fixed thereto, and the light 3 is inserted into and held by each support member 3a. A screw hole is provided on the upper side of both support members 3a, and a screw 3b is screwed into the screw hole to abut the outer peripheral surface of the light 3 to fix it. The light 3 has a built-in battery, and when the case 3c on the lamp side is rotated, a switch can be turned on and off to turn on or off. The U-shaped member 10 has a screw hole formed in the lower plate 10a, the video camera 4 is disposed between the left and right side plates 10b, 10c, and the screw insertion provided on the base 4a of the video camera 4 is provided. The video camera 4 is fixed by screwing a screw through the hole. A cable 4b is pulled out from the video camera 4, and a connector 4c is attached to a tip of the cable 4b.

As shown in FIGS. 1 and 2, the operating rod fixing tool 5 includes a cylindrical member 12 and a pair of holding members 13, 13. The distal end portion 6 a of the operating rod 6 is attached to the cylindrical member 12. Be fixed. The inner diameter of the cylindrical member 13 is slightly larger than the outer diameter of the distal end portion 6a of the operating rod 6, so that the distal end portion 6a can be easily inserted. The tubular member 12 has a retaining groove 14 formed of a vertical groove 14a extending in the length direction near the rear end 2b and a lateral groove 14b extending in the circumferential direction. The left and right holding members 13, 13 are each curved at a required curvature so that the tubular member 12 can be fixed to the uneven plane 2d of the mounting base 2. Each of the holding members 13 is provided with ear pieces 13a and 13b at both end edges. Each of the ear pieces 13a and 13b is formed with two screw insertion holes. A screw 13c is inserted into the screw insertion hole of the ear piece 13a, and a screw 13d is inserted into the screw insertion hole of the ear piece 13b. The operating rod fixture 5 places the tubular member 12 on the mounting base 2 and arranges the outer peripheral portion of the tubular member 12 so as to be sandwiched by left and right sandwiching members 13. As a result, in each of the holding members 13, the ear piece 13 a on the lower side is placed on the upper surface 2 d, and the ear pieces 13 b on the upper side come into contact with each other. Then, the screw 13c is screwed into the screw hole formed in the upper surface 2d from the insertion hole of the ear piece 13a on each lower side. Further, a screw 13d is inserted into the insertion hole of the upper ear piece 13b, and a nut is screwed into the screw portion of the screw 13d and tightened. Then, the tubular member 12 is firmly fixed by the holding members 13 and 13 in a state where the tubular member 12 is horizontal to the upper surface 2d.

The operating rod 6 is formed by connecting a plurality of joint pipes 15 having the same length, and the number of the joint pipes 15 can be increased or decreased according to the length of the downspout 24 to be inspected. The connecting pipe 15 has a distal end portion 15a smaller in diameter than the main body portion 15c so as to be connected to each other, and a rear end portion 15b has an inner diameter in which the distal end portion 15a can be inserted. While a screw hole is provided near the step portion of each tip portion 15a, each rear end portion 15b has a longitudinal groove extending in the length direction (not shown) as in the case of the cylindrical member 12 and extending in the circumferential direction. A locking groove is formed that includes a lateral groove that extends. It should be noted that a rubber cap is fixed to the rear end 15b of the connecting pipe 15, which is the last. The connecting pipe 15 has a screw 16 with an engagement nut for connection screwed into a screw hole of each distal end 15a in advance, and a clip 17 for supporting a cable is held on the outer peripheral surface of the main body 15c. The screw 16 with an engagement nut is formed by screwing a circular engagement nut 16b into a screw portion 16a, and an engagement step 16c is formed integrally with the nut 16b. The engaging step 16c has an outer diameter capable of engaging with a substantially circular engaging hole in the lateral groove 14b of the engaging groove 14.

In the screw 16 with the engagement nut, the screw portion 16a is screwed into the screw hole of each end portion 15a, and then the engagement nut 16b is positioned on the head 16d side. Then, the front end 15a is inserted into each rear end 15b with the screw 16 with the engaging nut facing the engaging groove 14, and the distal end 15a is rotated in the circumferential direction. Rotate and tighten the engagement nut with the screw located at the back of. Then, the engaging step 16c is engaged with the engaging hole to prevent the joint tube 15 from coming off, and the connection between the connecting pipes 15 is strengthened. As shown in FIG. 4, the clip 17 is made of a substantially semicircular elastic member having a diameter slightly smaller than the outer diameter of the connecting pipe 15, and has a support plate 17a protruding from the outer peripheral surface. The support plate 17a has a through hole 17b through which the cable 18 can be inserted, near the outer peripheral surface. The clip 17 is fitted substantially at the center of each connecting pipe 15, and the cable 18 is inserted through the through hole 17b of the support plate 17a. The cable 18 has connectors 18a at both ends, and connects the connector 18b at one end 18a to the connector 4c on the video camera 4 side and the other end to the connector on the monitor 7 side. The monitor 7 is a small TV having a liquid crystal screen 7a, and has a recording function for recording an image of the video camera 4. The monitor 7 is provided with a power switch, a zoom button, a recording and playback button, and the like on an operation unit 7b on the front.

Next, an operation of inspecting the downspout with the above-mentioned conduit inspection tool will be described. First, as shown in FIG. 5, the worker places the mounting base 2 in the opening 24a of the downspout 24 to be inspected, turns on the light 3, and turns on the monitor 7. Then, by holding and pushing the operation rod 6, the mounting base 2 is inserted into the conduit 24 b of the downspout 24. Along with this, the inside of the pipeline 24b is illuminated, and the image signal captured by the video camera 4 is transmitted to the monitor 7, whereby the captured image is displayed on the screen 7a. At this time, zoom-in and focusing are performed as necessary, and each part of the pipeline 24b is inspected in detail, and an abnormal part is recorded. As described above, when the operating rod 6 is pushed in and the mounting base 2 is advanced into the inner part of the downspout 24, even if the mounting base 2 is approaching a large crack, the mounting base 2 has a ship shape, so that the mounting base 2 fits into the crack. You can move forward without getting stuck. Even if weeds are growing in the pipeline 24b, since the lower surface 2c of the mounting base 2 is inclined, it is possible to get over without hitting the weeds. On the other hand, in the case of retreating, similarly, since the mounting base 2 is not caught by cracks or weeds, the inside of the pipeline 24b can be inspected and investigated without any trouble. Note that the operation rod 6 may have a configuration in which a plurality of pipes of different diameters are connected instead of the connecting pipe 15, and can be extended and contracted in accordance with the length of the downspout 24.

[0013]

[Effect of the invention]

 As described above, the invention of claim 1 of the present invention is a monitor that grasps the operation rod, inserts the mounting base into the pipe to be inspected, turns on the light, and captures the inside of the pipeline with the camera. The screen can be inspected and inspected in detail by simply grasping the operating rod and moving the mounting base forward and backward without using a remote control car as in the past. Therefore, complicated equipment is not required for pipeline inspection, and there is an effect that a pipeline inspection tool having a simple configuration and easy manufacture can be provided. In addition, when inspecting the pipes of the downspout buried in the base of the railway track, even if large cracks are formed or weeds are overgrown, because the mounting base is in the shape of a ship, go over these This has the advantage that it is possible to inspect and investigate inside the pipeline without hindrance. In the invention according to the second aspect, since the operating rod composed of a connecting pipe or an extendable telescopic rod is attached to the fixing means, the mounting base and the operating rod can be easily attached and detached and easy to handle. This has the effect.

[Brief description of the drawings]

FIG. 1 is a side view showing a pipe inspection tool according to an embodiment of the present invention.

FIG. 2 is a plan view showing the pipe inspection tool.

FIG. 3 is a front view showing the conduit inspection tool.

FIG. 4 is a front view showing a support clip of a cable held by an operation rod.

FIG. 5 is an explanatory view showing an operation of inspecting a pipe of a downspout using the pipe inspection tool.

[Explanation of symbols]

 2 Mounting base 2a Front side 2b Rear side 3 Light 4 Camera 5 Fixing means 6 Operation rod 7 Monitor 7a Screen 18 Cable 24a Inspection pipe

Claims (2)

[Utility model registration claims] 1. A boat-shaped mount having an outer diameter smaller than the inner diameter of a pipe to be inspected, a camera and a light mounted on a front side of the mount, and a fixing means provided on a rear side of the mount via a fixing means. A pipe inspection tool, comprising: an operation rod attached by a camera; and a monitor connected via a cable for transmitting an imaging signal from the camera and displaying an image of the camera on a screen. 2. The pipeline inspection tool according to claim 1, wherein an operation rod formed of a connecting pipe or an extendable telescopic rod is attached to the fixing means.