JPH077264U - Pipe inspection camera - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended to realize a reliable and reliable connection structure and to ensure stable waterproof performance for a long period of time. [Structure] First and second housings 10 and 11 in which camera bodies are separately arranged are mechanically waterproof-bonded by an elastically deformable flexible tube 16 and electrically connected to each other in the flexible tube 16. Connection cable 18
It is configured to be loosely inserted to achieve the intended purpose.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an in-pipe inspection camera suitable for inspecting the inner wall of a small-diameter pipeline such as a gas pipe buried in the ground.

[0002]

[Prior art]

 Generally, this type of in-pipe inspection camera is required to be inserted into the pipeline from the middle of the pipeline, so the camera body is divided into multiple blocks and arranged linearly, Is configured to allow the insertion of.

FIG. 3 shows a conventional in-pipe inspection camera, in which an optical system 1 constituting a camera body and a sensor substrate 2 are housed in a first housing 3 forming a first block, and the camera substrate 4 is housed in the second casing 5 forming the second block, and the first and second casings 3 and 5 are linearly divided and arranged. The camera board 4 of the second housing 5 is electrically connected to the sensor board 2 of the first housing 3 by using a connection cable 6.

The connection cable 6 laid between the first and second casings 3 and 5 has both ends fixed to the entrances and exits of the first and second casings 3 and 5 with an adhesive 7. , The first and second casings 3 and 5 are sealed. An elastically deformable spring member 8 is attached to the periphery of the connection cable 6 that is laid between the first and second housings 3 and 5 with the extra length of the connection cable 6. To be done. The ends of the spring member 8 are attached to the first and second casings 3 and 5, and are installed between the first and second casings 3 and 5.

In the above structure, the first and second housings 3 and 5 forming the camera body are sequentially inserted from an insertion opening provided in the middle of a conduit (not shown). At this time, the first and second casings 3 and 5 are deformed corresponding to the pipeline by the elastic force of the spring member 8 that is erected, and enter the pipeline. In this way, when the optical system 1 of the first housing 3 that has entered the conduit is photographed inside the conduit, the imaging signal is guided to the camera substrate 4 via the sensor substrate 2 and the connection cable 6, It is output to an external operation unit (not shown) via the camera board 4.

However, in the above-mentioned in-pipe inspection camera, when the first and second casings 3 and 5 are pulled out from the pipe line, the first and second casings 3 and 5 have corners of the pipe line and the like. However, since the spring member 8 is excessively stretched and a large force is applied to the connecting cable 6, there is a risk of breaking the wire, which is not satisfactory in terms of reliability.

Further, according to this, the water in the conduit acts directly on the adhesive 7 for fixing the connection cable 6 to the first and second casings 3, 5, and the adhesive 7 However, there is a problem that the deterioration of water resistance is promoted and the waterproof performance is apt to deteriorate.

[0008]

[Problems to be solved by the device]

 As described above, the conventional in-pipe inspection camera has a problem that the connection cable is easily broken or the waterproof performance is deteriorated. The present invention has been made in view of the above circumstances, and it is possible to realize a reliable and reliable connection configuration with a simple configuration and to secure stable waterproof performance for a long period of time. The purpose of the present invention is to provide an in-pipe inspection camera.

[0009]

[Means for Solving the Problems]

 This invention relates to an in-pipe inspection camera including a camera body divided into a plurality of blocks, which linearly connects the plurality of blocks, and elastically deforms an end portion of which is waterproofly coupled to the block. The flexible tube is provided with a flexible cable and a connection cable that is loosely inserted in the flexible tube and electrically connects between the plurality of blocks.

[0010]

[Action]

 According to the above configuration, the flexible tube is mechanically and waterproofly coupled to the first and second blocks, and the first and second blocks are linearly divided and arranged, whereby the first and second blocks are arranged. Waterproof the second block. Further, the force applied to the first and second blocks is directly applied to the flexible tube, the flexible tube is elastically deformed, and the force electrically conducts between the first and second blocks. Does not add to the connecting cable. Therefore, it is possible to prevent the deterioration of the waterproof performance and also to prevent the disconnection of the connection cable.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an in-pipe inspection camera according to an embodiment of the present invention, in which camera bodies are separately housed in first and second casings 10 and 11 forming first and second blocks. It Of these, an optical system 12 is provided in the first housing 10, and a sensor substrate 13 is arranged to face the optical system 12. A camera board 14 is housed in the other second housing 11.

The first and second casings 10 and 11 are provided with a connection screw portion 15 as shown in FIG. 2 in a similar manner, and the connection screw portion 15 has an elastically deformable flexible tube. The ends of the bushes 16 are mechanically waterproofed by using a pipe joint 17 called a socket. The connection cable 18 conductively connected to the sensor substrate 13 of the first housing 10 has one end loosely inserted into the flexible tube 16 through the connection screw 15 and the other end connected to the second housing. It is guided into the second housing 11 through the connection screw portion 15 of 11 and electrically connected to one connection end of the camera substrate 14 with a predetermined extra length. Further, one end of another connection cable 18 is connected to the other connection end of the camera board 14, and the other connection cable 18 is pulled out from the second casing 11 and is flexible tube 16 at the subsequent stage. It is loosely inserted inside and electrically connected to an operation unit (not shown).

It should be noted that the flexible tube 16 may have a tube structure in which an elastic material such as a spring member is disposed on the outer periphery of the flexible tube 16 so as to be elastically deformable, or alternatively, an elastic material may be embedded to provide elastic properties. A deformable tube structure may be used.

In the above structure, the first and second casings 10 and 11 that form the camera body are sequentially inserted from, for example, an insertion opening provided in the middle of the conduit. At this time, in the first and second casings 10 and 11, the flexible tube 16 that is erected is elastically deformed corresponding to the pipeline, and the flexible tube 16 penetrates into the pipeline. In this way, the optical system 12 of the first housing 10 that has entered the conduit takes an image of the inside of the conduit while moving in the conduit, and the imaging signal is transmitted via the sensor substrate 13 and the connection cable 18. It is guided to the camera board 14 and is output to the operation section (not shown) via the camera board 14.

As described above, in the in-pipe inspection camera, the first and second casings 10 and 11 in which the camera bodies are separately arranged are mechanically and water-proof bonded by the elastically deformable flexible tube 16. A connection cable 18 electrically connecting the flexible tubes 16 to each other is loosely inserted. According to this, since waterproofing is realized at the location where the flexible tube 16 and the first and second casings 10 and 11 are mechanically waterproof-bonded to each other, the performance is improved over a long period of time as compared with the conventional one. The waterproof performance is secured. Further, according to this, when a force is applied to the first and second casings 10 and 11 when moving in the conduit, the force is directly applied to the flexible tube 16 and the connection cable. Since the connection cable 18 is effectively prevented from being broken by not being added to the cable 18, the reliability of the operation control is improved.

In the above embodiment, the optical system 12 of the camera body and the sensor substrate 13 are arranged in the first casing 10, and the camera substrate 14 is arranged in the second casing 11. As described in the case, the present invention is not limited to this, and various types of combined configurations are possible as a combined arrangement of camera bodies. Therefore, the present invention is not limited to the above-described embodiments, and it is needless to say that various modifications can be made within a range not departing from the gist of the present invention.

[0017]

As described above in detail, according to the present invention, the structure can be simplified, a reliable and reliable connection structure can be realized, and stable waterproof performance can be secured for a long period of time. It is possible to provide the in-pipe inspection camera thus configured.

[Brief description of drawings]

FIG. 1 is a view showing an in-pipe inspection camera according to an embodiment of the present invention.

FIG. 2 is a diagram showing the waterproof connection part of FIG. 1 taken out.

FIG. 3 is a view showing a conventional in-pipe inspection camera.

[Explanation of symbols]

 10, 11 ... First and second casings. 12 ... Optical system. 13 ... Sensor substrate. 14 ... Camera board. 15 ... Connection screw part. 16 ... Flexible tube. 17 ... Pipe joint. 18 ... Connection cable.

Claims (1)

[Scope of utility model registration request] 1. An in-pipe inspection camera including a camera body divided into a plurality of blocks, wherein the plurality of blocks are linearly connected, and an end portion of which is elastically deformable and waterproofly coupled to the block. An in-pipe inspection camera including a flexible tube and a connection cable loosely inserted in the flexible tube and electrically connecting between the plurality of blocks.