JPH08332949A - Support, and supporting method for measuring device - Google Patents

Abstract

PURPOSE: To stably support a measuring device in a support for holding a measuring device to be inserted through a conduit by supporting plural rotary bodies applied to an inner wall surface of the conduit by an elastic plate, and fixing a support rod for supporting the measuring device to holding plates supporting both side surfaces of the elastic plate. CONSTITUTION: Rotary bodies 5 such as bearings or rollers to be applied to a wall surface in a conduit while rotating are held on support holding members 8 through support shafts 7, and the support holding members 8 are fixed to angular tip parts of an elastic plate 6 of a rubber plate of a polygonal form by bolts and nuts 11, etc. For the elastic plate 6, both side surfaces of it, except for end parts, or especially angular tip parts, are held by holding plates 9, 9, and a support rod 10 is fixed to center parts of the holding plates 9, 9 by nuts 12. Support force is applied to the rotary bodies 5 by bounce when the angular tip parts of the elastic plate 6 are bent, various measuring devices are thereby supported between a pair of supports 3 disposed forward and back at an interval.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting device and a supporting method for holding a measuring device when various measuring operations are performed on the conduit by pulling the measuring device into the conduit.

[0002]

2. Description of the Related Art Conventionally, in a measuring device for performing various measurements on a pipeline by pulling the measuring device through the pipeline,
It is desirable for the stability of measurement to support this measuring device on the central axis in the conduit and perform smooth drawing. However, in the actual pipe line, since pipes having a fixed length are added, there is a discontinuity in the inner diameter at the joint portion, and the inner diameter often widens. For this reason, as shown in FIG. 5, a plurality of dog-legged elasticities are attached to both ends of the measuring device 3 in the longitudinal direction as a supporting device for supporting the measuring device 3 on the central axis of the conduit 1. There is one that abuts and supports the convex portion 4a of the member 4 on the inside of the conduit 1. Further, although not shown, there is a device in which a plurality of spring members, each having a roller attached to the wall surface in the conduit at its tip, are attached to both ends of the measuring device in the longitudinal direction.

[0003]

However, in the former supporter of the above-mentioned conventional example, in order to hold the measuring device 3 at the center of the conduit 1 it is necessary to strongly press the supporter against the wall surface of the conduit 1. Due to the frictional force generated by
There is a drawback that increases the traction force of the measuring device. Also, with the latter support of the conventional example, it is difficult to insert the support supporting the measuring device in the pipeline first due to the strong spring force for holding the measuring device in the center of the pipeline. There is a drawback. The present invention has been made in view of such a problem, and its object is to reduce the frictional force generated by supporting the supporting device by abutting against the wall surface in the pipeline, and , It is easy to insert the support device into the conduit first, and it is possible to hold the measuring device on the center line in the conduit while slidably supporting the measuring device in the conduit with the pair of support devices. It is an object of the present invention to provide a supporting device and a supporting method for a measuring device.

[0004]

In order to achieve the above-mentioned object, in the present invention, a rotating body 5 that abuts a wall surface in a pipe line.
An elastic plate 6 for supporting the plurality of rotating bodies 5, a support shaft 7 and a support shaft holding member 8 of the rotating body for fixing the rotating body 5 to an end portion of the elastic plate 6, and an end of the elastic plate 6. Supporting the measuring device, which is constituted by holding plates 9 and 9 for holding both side surfaces excluding the parts and holding rods 10 for supporting the measuring device fixed to the holding plates 9 and 9. It is a container 13.

Further, the supporting device 13 of the measuring device and the supporting device 13
The measuring device 3 is disposed between the measuring device 3 and the measuring device 3, and the measuring device 3 is fixed by a supporting rod for supporting the measuring device.

[0006]

According to the present invention, since the rotor 5 is in contact with the wall surface in the conduit, the frictional force generated by the contact is small, and the elastic plate 6 to which the rotor 5 is fixed is small. The supporting force of the supporting device is given by the bending reaction force at the end of the measuring device 3, and the balance can hold the measuring device 3 on the central axis in the conduit. Further, even when the supporter is first inserted into the conduit, since the elastic plate 6 having the rotating body 5 fixed to the end is bent and inserted into the conduit, the elastic plate 6 is simply inserted into the conduit. Just push it in.

[0007]

1 is a front view of a supporting device of a measuring device according to an embodiment of the present invention, and FIG. 2 is a side view of the same. Hereinafter, referring to these drawings, the supporting device of the measuring device of the present invention will be described. An example of the container will be described. Reference numeral 5 denotes a rotating body such as a bearing or a roller that comes into contact with the wall surface in the pipe while rotating. The rotating body 5 is held by a support shaft holding member 8 via a support shaft 7. The supporting shaft holding member 8 held is a polygonal elastic plate 6 such as a rubber plate or the like such as a triangle or a quadrangle.
Is fixed to each corner tip by a fixing member 11 such as a bolt and a nut. Since the rotating body 5 can freely rotate, the contact friction with the wall surface in the conduit is reduced.

The elastic plate 6 is clamped by clamping plates 9 and 9 at both ends thereof, particularly both side surfaces excluding the tip of each corner, and a support rod 10 is fixed by a nut 12 to the center of the clamping plates 9 and 9. Has been done. The corners of the elastic plate 6 to which the rotating body 5 that is not sandwiched by the sandwiching plates 9 and 9 is fixed are rotated by the repulsive force of the elastic plate 6 when bent as shown by the broken line in FIG. Gives support to the body 5. At this time, if the elastic plate 6 has a regular polygonal shape as shown in FIG. 1, the pair of supporting devices 13, 13 of the measuring device connected by the supporting rod 10 is used.
The support rod 10 is supported on the central axis in the conduit by the balance of the repulsive force of the elastic plate 6 constituting the.

FIG. 3 shows a method of supporting a measuring device using the support device 13 configured as described above. A measuring device using a support rod 10 is provided between the support device 13 and the support device 13. By supporting 3, the support rod 10 is supported on the central axis in the conduit, so that the measuring device 3 can be supported on the central axis in the conduit 1.

As shown in FIG. 3, even if the inner diameter of the conduit is enlarged at the conduit joint portion 2, the sizes of the elastic plate 6 and the sandwiching plate 9 which form the supporter 13 are targeted for the conduit. If it is designed according to the change of the inner diameter of, the measuring device 3 supported by the supporting device 13 can be stably supported on the central axis of the inside of the conduit 1 and passed therethrough.

As the elastic plate 6, a flexible material having a similar elastic force may be used instead of the rubber plate as in the embodiment. As shown in FIG. 4, a plate spring 14 is used. You may.

[0012]

As described above, according to the present invention, the rotating body that abuts against the wall surface in the conduit, the elastic plate that supports the plurality of rotating bodies, and the rotating body are fixed to the ends of the elastic plate. And a holding member for holding the supporting shaft of the rotating body, a holding plate for holding and sandwiching both side surfaces of the elastic plate excluding the end portion, and a support rod for supporting the measuring device fixed to the holding plate. Measurement by fixing the measuring device by a supporting rod for supporting the measuring device, by setting the measuring device as a support of the measuring device and between the supporting device and the supporting device of the measuring device. By using the method of supporting the device, that is, since the rotating body is provided at the contact portion of the supporting device of the measuring device with the wall surface in the conduit, sliding support with less frictional force can be realized. Also, since the rotating body is attached to each corner tip of the polygonal elastic plate, a flexible bending reaction force can be obtained. In addition, by attaching the rotating body to each corner tip of the regular polygonal elastic plate, repulsion Due to the balance of forces, it is possible to realize a support in which the support rod attached to the support is on the central axis in the conduit. Further, by supporting the measuring device with a pair of the supporting devices of the measuring device, the rotating body constituting the supporting device supporting the measuring device is rotatably abutted on the wall surface in the pipe line, and the measuring device is supported. It becomes possible to hold and pass it on the central axis in the road.

[Brief description of drawings]

FIG. 1 is a front view of a supporting device of a measuring device according to the present invention.

FIG. 2 is a side view of a supporting device of the measuring device according to the present invention.

FIG. 3 is a diagram showing a method of supporting a measuring device using the supporting device of the measuring device of the present invention.

FIG. 4 is a diagram showing an embodiment in which a leaf spring is used as a support of the measuring device of the present invention.

FIG. 5 is a diagram showing an example of a supporting device of a measuring device using a conventional dogleg-shaped ferroelastic material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipeline 2 Pipeline joint part 3 Measuring device 4 V-shaped strong elastic material 4a Convex part 5 Rotating body 6 Elastic plate 7 Support shaft 8 Support shaft holding member 9 Clamping plate 10 Support rod 11 Fixing member 12 Nut 13 Supporter 14 Leaf spring

Claims (2)

[Claims] 1. A rotary body that abuts against a wall surface in a pipe line, an elastic plate that supports the plurality of rotary bodies, a spindle for fixing the rotary body to an end of the elastic plate, and a spindle support. A measuring device comprising a member, a sandwiching plate sandwiching and sandwiching both side surfaces of the elastic plate excluding the end portion, and a supporting rod for supporting the measuring device fixed to the sandwiching plate. Supporter. 2. A measuring device is arranged between a supporting device and a supporting device of the measuring device according to claim 1, and the measuring device is fixed by a supporting rod for supporting the measuring device. Method of supporting measuring device.