JPH0535284Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an inspection machine support device, and in particular, a sensor for inspecting the slope of a tunnel, which is the inspection target surface.
The present invention relates to an inspection machine support device that supports an inspection machine such as a camera (hereinafter referred to as "inspection machine") and inspects the slope of a tunnel.

[Conventional technology and its problems] Radio waves and sound waves have traditionally been used to discover cavities behind concrete, etc. applied to the tunnel slope (hereinafter simply referred to as "slope"), which is the surface to be inspected. We use an inspection machine that uses In general, this type of inspection machine is mounted and fixed on a moving vehicle to perform the inspection in order to inspect concrete or the like applied to a slope over a long distance.

However, when mounting and fixing an inspection machine on a moving vehicle, etc., if the vehicle road surface of the tunnel is flat or the inspection slope is flat, there will be no vertical movement of the vehicle and this will not cause much of a problem. do not have. However, if the vehicle road surface or the inspection slope is not flat and has large irregularities, there is a risk that the inspection machine will collide with the slope and be destroyed.

Another conceivable technique is to use an obstacle detection sensor or the like to sense the unevenness of the slope, and based on this sensing data, use hydraulics, pneumatics, or other means to move the inspection machine away according to the unevenness of the slope. However, such technology requires a large number of parts in the device and is expensive.

Furthermore, when the inspection machine is mounted on a moving vehicle and moved at a predetermined speed for inspection, there is a problem with the reaction speed of moving the inspection machine apart according to the unevenness of the slope, and it is necessary to reduce the vehicle speed extremely. Yes, it is inconvenient in terms of work efficiency. Furthermore, there is a problem in that the type of inspection machine cannot be easily changed depending on the type of tunnel.

The purpose of this invention was to solve the above-mentioned problems, and the purpose of this invention is to provide a mobile device that is simple in structure, easy to operate, has high work efficiency, is easy to carry especially when not in use, and is inexpensive. To provide an inspection machine support device that can be placed on top of a tunnel and inspects the slope of a tunnel while protecting the inspection machine.

Another object of the present invention is to provide an inspection machine support device for inspecting the slope of a tunnel that can be maintained constant with respect to the normal line even if the inspection surface of the tunnel is a curved surface.

[Means for Solving the Problems] The inspection machine support device for inspecting the slope of a tunnel according to the present invention is arranged on a moving body and includes a sensor, a camera, etc. for inspecting the slope of the tunnel, which is the surface to be inspected. An inspection machine support device for supporting an inspection machine, which includes a boom, an engagement receiving part that pivotally supports the boom so as to be movable up and down, a support member that supports the engagement receiving part, and a support member that supports the support member horizontally. a cylindrical support member that is rotatably housed;
The boom has an arm, a longitudinal member that is detachable from the arm and has a weight disposed on the opposite side of the arm, and an operating section that accommodates at least a portion of the longitudinal member and makes it rotatable. a cylindrical member having a protractor attached to the end of the non-longitudinal member of the arm at a predetermined angle, and a protractor for attaching an inspection machine at a predetermined angle; A contacting guide roller is disposed, and a predetermined location on the weight side of the boom and a predetermined location on the cylindrical support member are engaged by a biasing means.

Further, it is more preferable that the arm is made of a material that does not easily affect radio waves.

[Function] The present invention is constructed as described above, and the inspection machine can be mounted at a predetermined angle using a protractor. Even if the slope of the tunnel is uneven or the moving body moves up and down, the inspection machine can be held without colliding with the slope of the tunnel.

Since the boom can move up and down using the engagement receiving part as a fulcrum, it is easy to change the height. Since the engagement is well-balanced, the boom can be moved with a small amount of force. Furthermore, since the support member is configured to be horizontally rotatable, the boom can be rotated 360 degrees. In this way, the boom can rotate freely and the inspection machine is prevented from colliding with the slope, so it is not restricted by the inspection location or inspection machine.

Furthermore, since the arm constituting the boom can be rotated on its axis, the inspection machine can be easily moved in plane. In this way, it is ideally suited for tunnels that need to be inspected while moving. In addition, the boom is well-balanced, making it easy to operate and able to handle any rough terrain.

Furthermore, since each component of the boom can be disassembled, it is easy to carry, and is suitable for inspecting tunnels that serve as waterways such as dams, where it is difficult to transport large equipment.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. However, it should be understood that the components, other members, and arrangements described or shown in the following description are merely illustrative and do not limit the present invention.

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention. The inspection machine support device S of this embodiment is arranged on a moving object such as a moving vehicle, and includes a boom 1, an engagement receiving part 2 , a support member 7, a cylindrical support member 8, etc., and the boom 1 is comprised of an arm 4, a longitudinal member 5, a cylindrical member 6, etc.

The arm 4 is made of a material (wooden in this example) that is lightweight and does not easily affect radio waves and electromagnetic waves, etc., and has a desired length (in this example, the distance between the fulcrum and the inspection machine is 3.5 m as described later). ), and a slit (not shown) is formed at the tip of the arm 4.

A protractor 11 made of FRP or the like is mounted between the slits with a shaft 11a.

The protractor 11 has a notch 1 formed in an arc shape.
1c is formed and engaged with a locking screw 11b provided on the arm 4, so as to be movable as shown by arrow A.

By screwing the locking screw 11b, the protractor 11 can be locked at any location. As a result, even if the inspection surface is a curved surface,
The inspection machine can be held constant relative to the normal.

Further, an inspection device K is integrally fixedly formed on the protractor 11 via a joint 15. In this example, an antenna is formed as the inspection device K. The inspection device K is connected to a transmitter H shown by a chain line attached to the upper part of a cylindrical member 6, which will be described later, by a lead wire (not shown).

Further, a holding member 12 for holding a guide roller is fixed to the tip end side (inspection machine side) of the arm 4 with screws 12a or the like. A guide roller 13 is rotatably held on a shaft 12b provided at the tip of this holding member 12. The guide roller 13 is made of an elastic material such as a foam material so as not to affect the inspection machine K when it collides with a slope. Furthermore, the guide roller 13 also aims to follow the irregularities of the surface to be inspected and maintain a constant distance from the surface to be inspected.

The other end of the arm 4 is removably fitted into a recess 5a formed at one end of the longitudinal member 5.

The other end side of the longitudinal member 5 is attached with a weight portion 5b made of lead or the like.
A rotating handle 14 is formed integrally with the weight portion 5b. The weight portion 5b is configured such that, for example, a space is formed in the longitudinal member 5, and it can be attached to and removed from the space, so that the weight of the weight can be changed.

Most of the longitudinal member 5 is mounted and held in the cylindrical member 6, but between the longitudinal member 5 and the cylindrical member 6, in this example, on the inside of both ends of the cylindrical member 6, there are engaging members. 4a and 4b are provided. Engagement member 4a
consists of a cylindrical shape with a Y-shaped longitudinal section, and the longitudinal member 5
and engages with the antenna side end of the cylindrical member 6. Further, the engaging member 4b is cylindrical and is attached to the longitudinal member 5.

The engaging members 4a, 4b are made of fluororesin, for example.
Du Pont's Teflon (trademark) and is formed with increased surface pressure. For this reason, the longitudinal member 5 is configured to be able to rotate as shown by arrow B around its own axis.

A grip portion 16 serving as an operation portion for operating the boom 1 is formed in the cylindrical member 6 at a desired position near the rotating handle 14 side.

Further, a set screw 17 is formed at a location near the grip portion 16 that is easy to operate.

Further, a hooking portion 18 for hooking one end of a biasing means, which will be described later, is formed at the lower part of the rotating handle 14 side, and an engaging portion 19 is formed at the bottom surface of the cylindrical member 6 closer to the arm 4 side. has been done.

The engaging portion 19 serves as a fulcrum of the boom 1,
In this example, the length from the engaging portion 19 to the end of the cylindrical member 6 is 1 m. The cylindrical member 6 is supported by the support member 7 via the engagement portion 19 and the engagement receiving portion 2 .

That is, the engaging portion 19 and the engaging receiving portion 2 are pivotally connected by the shaft 2a, and are formed to be movable in the vertical direction as shown by the arrow C.

Further, the engagement receiving portion 2 is fitted into the cylindrical support member 8 via the engagement members 8a and 8b. Engagement member 8
a and 8b are the same as the engaging members 4a and 4b. The support member 7 is configured to be rotatable as shown by arrow D.

A set screw 20 is installed at a predetermined location on the cylindrical support member 8.
is formed so that the rotation of the support member 7 can be stopped.

Furthermore, four cladding plates 21 are formed on the outside of the cylindrical support member 8 to support it, so as to prevent it from falling over. Next, the latching portion 18 formed on the cylindrical member 6 and the latching portion 22 formed at a predetermined location on the lower part of the cylindrical support member 8 are engaged with each other by a biasing means. A turn bulk 23 and a spring weigher 24 are used as means. By using the turn bulk 23, the urging force of the spring of the spring scale 24 can be adjusted in response to the installation of inspection machines of different weights, thereby facilitating the operation of the boom 1.

Next, the operation of the embodiment according to the above configuration will be explained.

The inspection machine support device S in this embodiment configured as described above is placed on a moving vehicle V as shown by the chain line, and the operator manually holds the grip 16 at a certain distance from the slope. (In this example, approximately 20cm
(position) to keep it horizontal. At this time, while the vehicle V is moving, the guide roller 13 comes into contact with a convex portion of the slope to protect the inspection device K so that the inspection device K itself is not damaged.

Since the longitudinal member 5 holding the arm 4 is engaged with the cylindrical member 6 via the engaging members 4a and 4b, the longitudinal member 5 can be rotated by the rotation handle 14. Therefore, the arm 4 can be rotated on its axis, and the inspection machine K attached to this arm 4
can rotate 360° relative to the arm 4.

Further, since the engaging portion 19 and the engaging receiving portion 2 can be moved up and down by the shaft 2a, the boom 1 can be adjusted to a predetermined height.

Further, since the support member 7 is rotatably engaged with the cylindrical support member 8 via the engagement members 8a and 8b, the boom 1 can rotate 360 degrees around the engagement receiving portion 1. This allows the boom 1 to move on a predetermined slope.

In this example, the engagement receiving part 2 is the fulcrum, the length from this fulcrum to the inspection machine K is 3.5 m, the distance from the fulcrum to the end of the cylindrical member 6 is 1 m, and the height from the vehicle V to the fulcrum is It is 1.2m.

Therefore, if the weight of inspection machine K is 5 kg,
In order to configure the weight portion 5b, spring weight 24, cylindrical member 6, longitudinal member 5, etc. to balance this,
A force of 17.5 kg (actually, the weight of the arm 4 and the weight of a part of the longitudinal member 5 and the cylindrical member 6 are added to this) is required. If this force is generated only by the weight portion 5b, it will be inconvenient when disassembling and moving the inspection machine and operating the boom, and if only the spring weighing device is used as a biasing means, the biasing force will be too strong and will hinder operation. .

Therefore, for example, if the weight is 6 kg and the biasing force by the spring is 11.5 kg, the operation can be performed with just 1 kg of force.

In this way, depending on the length from the fulcrum to the inspection machine K and the length from the fulcrum to the end of the cylindrical member 6, the turn bulk 23, the weight portion 5b, and the spring weight 24
change the weight of.

In other words, since the boom can move up and down using the engagement receiver as a fulcrum, the height of the inspection machine can be adjusted to match the unevenness of the slope by simply applying a slight force using the grip. This is because the cylindrical member that makes up the boom and the cylindrical support member that supports the boom are engaged in a well-balanced manner by the biasing means as described above, so the boom can be moved with a small amount of force. This is because it can be done.

[Effects of the invention] As described above, according to the invention, the inspection machine is protected by the guide roller that contacts the surface to be inspected, and the boom that holds the inspection machine can rotate itself, making it easy to operate up, down, left and right. It can be operated in a well-balanced manner as an inspection machine support device for inspecting the slope of a tunnel placed on a moving body. Since the inspection machine can be mounted at a predetermined angle, it is possible to deal with slopes of tunnels of different sizes by forming a predetermined angle in advance.
Inspection work can be easily carried out without damaging the inspection machine even in places with severe unevenness.

In addition, since the inspection machine support device can be easily disassembled into arms, longitudinal members, support members, etc., it can be easily attached to and removed from moving objects, making it easy to use in tunnels that serve as waterways such as dams where it is difficult to transport large equipment. Suitable for inspection. As described above, the inspection machine support device according to the present invention has a simple structure, is easy to operate, has high work efficiency, and can be constructed at low cost.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Boom, 2... Engagement receiver, 4... Arm, 5... Longitudinal member, 6... Cylindrical member, 7... Support member, 8... Cylindrical support member, 13... Guide roller , 23... biasing means (turnbuckle), 24...
...Biasing means (spring weigher), K...Inspection machine, V...
Mobile vehicle, S...Inspection machine support device.

Claims (1)

[Claims for Utility Model Registration] 1. An inspection machine support device that is disposed on a moving body and supports an inspection machine such as a sensor or camera for inspecting the slope of a tunnel, which is the surface to be inspected, which includes a boom and The boom has an engagement receiving part that pivotally supports the boom so as to be movable up and down, a support member that supports the engagement receiving part, and a cylindrical support member that accommodates the support member so as to be rotatable in a horizontal direction. The boom includes an arm, a longitudinal member that is detachable from the arm and has a weight disposed on the opposite side of the arm, and a cylindrical member that has an operating section that accommodates at least a portion of the longitudinal member and makes it rotatable. and a protractor on which an inspection machine is mounted at a predetermined angle at the end of the non-longitudinal member of the arm, and a guide roller that extends from the inspection machine toward the inspection target surface and comes into contact with the inspection target surface. , wherein a predetermined location on the weight side of the boom and a predetermined location on the cylindrical support member are engaged by a biasing means, an inspection machine support device for inspecting a slope of a tunnel. 2. The inspection machine support device for inspecting the slope of a tunnel according to claim 1, wherein the arm is made of a material that does not easily affect radio waves.