JP2539751Y2 - Apparatus for inserting test equipment into a conduit - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a method of inserting an inspection device attached to the end of a cable through an inspection port opened in a part of a conduit such as a gas conduit or a water pipe while a fluid is flowing. The present invention relates to a device used for collecting or collecting.

[0002]

2. Description of the Related Art A device for attaching and inserting an inspection device to the end of a cable from an inspection port opened in a part of a conduit, and for pulling back and recovering the cable. The applicant of the present application has filed a Japanese Patent Application No. Hei 1-46941 (Japanese Utility Model Application Laid-Open No. 2-140358) in combination with a clamp and a shutter device.

[0003]

SUMMARY OF THE INVENTION The present invention relates to the above-mentioned device, which comprises: a. The state of the inspection equipment and cables inserted into the apparatus body is not well understood, and there is a part to be groped, b. In the sealing device between the inserted cable and the inserted guide pipe, it is difficult to easily improve and adjust the sealing performance; c. The shutter device uses a chain to tighten and fix it to the conduit,
Excessive tightening may cause distortion in the device, forcing the opening and closing of the shutter plate, and deteriorating the sealing performance. D. There is a problem that the sealing performance at the mounting portion (joining portion) between the clamp and the shutter device is uneasy.

It is an object of the present invention to insert an inspection device into a conduit.
It is an object of the present invention to solve the problems described in the above items a to d.

[0005]

The configuration of the present invention is as follows. Incorporate insertion guide device of the cable to the inside to form a connection port to be connected to the shutter opening to the bottom, in the box-like insertion device body formed by attaching a cable insertion guide pipe obliquely upward, this interpolation
A front wall in which the insertion guide device in the main body of the input device is visible.
Also in front of the rear wall and the cable insertion pipe,
Insertion guide device by providing the viewing window in a part of the visual can top wall and depth into the upper end of the cable insertion guide pipe
Form a tapered receiving port that narrows the
Insert a C-shaped press fitting into the
Tapered seam with cable hole partially cut outside
Insert the Rupakkin, C-shaped on the outside of the seal packing of this
Insert the retainer in the shape of
The engaging part formed in the cap nut is formed on the outer periphery of the retainer.
Engage the mating edge, then insert this cap nut into the cable
Screw into the thread formed on the outer circumference of the guide pipe receiving port.
And a bifurcated support bracket on each side of the shutter device.
Once installed, engage this foot on the edge of the clamp
A connection port formed on the bottom surface of the shutter device;
Make sure that the pedestal packing is inserted between the clamp openings of the clamp.
An apparatus for inserting inspection equipment into a conduit, characterized in that:

[0006]

[Action] inspection opening provided in the conduit, the diameter is larger field <br/> case of conduits need only be drilled with the drilling machine, but the smaller cut certain intervals, and the inspection port the cutting opening I do. At the inspection port, first attach a clamp that splits up and down ,
A shutter device is attached to a clamp opening of the clamp. At this time, the pedestal packing is inserted between the clamp port and the connection port of the shutter device. Attach to shutter device
Digit Ashisaki support bracket mounting on edge of the clamping location (engaging
If), and we firmly fix the shutter device on clamped by putting seeded Chen conduit.

[0007] Shutter opening of the shutter device, connect the bottom forming the connection opening of the insertion device body and attach the insertion device body on a shutter device in a fixed bolt.

In the sealing device attached to the cable insertion guide pipe of the insertion device body, loosening the cap nut releases the seal packing from the surface pressure, weakens the close contact with the cable, and tightens the surface pressure to increase the cable hole. There was Osamu径increases the adhesion to the cable, Rukoto changing the insertion resistance of the seal performance and the cable in this action freely
Can be .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing the whole apparatus according to the present invention, wherein 1 is an insertion device main body, 2 is a shutter device, 3 is a clamp, and 4 is a gas conduit.

As shown in FIGS. 1, 2 and 4, the insertion device main body 1 has a connection port 5 with the shutter device 2 formed at the bottom thereof, and is movable up and down by a guide shaft 6 and a guide knob 7 inside. A cable guide device composed of a guide tube 8 and a guide 8a is freely incorporated, a viewing window 10 is provided on the upper surface (obliquely upper left), and viewing windows 11 and 12 are provided on front and rear sides, and a cable insertion guide pipe 13 is attached obliquely upward and rightward. Configuration.

Reference numeral 14 denotes an upper end of the cable insertion guide pipe 13, which is a sealing device attached to a connection port with the cable guide pipe 15, and the sealing device 14 has a cable insertion guide as shown in FIGS. Guide pipe 1
Tapered socket 1 with step 17 formed at the upper end of 3
6, a C-shaped press fitting 18 to be engaged with the step portion 17, a tapered seal packing 19 having a cable hole 20 with a part cut obliquely 21, and contacting the seal packing 19 on the side opposite to the press fitting 18. C-shaped presser fitting 22 in contact with
The retainer 23 is inserted into the outside of the retainer fitting 22, this
An engaging portion 26 is formed on an engaging edge 24 formed on the outer periphery of the retainer 23.
Engages with a thread 28 cut out on the outer periphery of the receiving port 16.
And a cap nut 25 with a screw 27 screwed into the nut.

The shutter device 2 has a shutter port 2a formed on the upper surface as shown in FIGS. 4 and 7, and incorporates a shutter plate 29 which can be opened and closed by sliding with a handle 30 in the same direction as the gas conduit 4. A connection port 31 with the clamp port 3a formed on the lower surface is provided.
9 and 10 are inserted, and a support bracket 33 is attached to the left and right ends of the shutter device 2 shown in FIGS. 3, 4, 7, and 8 with screws 34. Reference numeral 35 denotes a lower portion of the support bracket 33 ,
A bifurcated leg tip 36 that engages with the edge 37 from above is a bolt for fixing the shutter device 2 and the insertion device main body 1.

[0013] clamping 3 forms a clamp opening 3a at the top, FIG. 3, as is clear from FIG. 8, a configuration in which divided into two in the vertical direction, the gas conduit 4 by bolts 38 of edge 37 portion formed in a horizontal direction It is fixed to.

In FIG. 3, reference numeral 39 denotes a chain for fixing the shutter device 2 to the gas conduit 4.

In FIG. 1, reference numeral 40 designates a column supporting the cable insertion guide pipe 13, and by adjusting the height thereof, the inclination angle of the cable insertion guide pipe 13 can be adjusted to some extent. 41 is a cable insertion machine.

The apparatus according to the embodiment is configured as described above, and an example of its use will be described.

First, the clamp 3 is attached to the gas conduit 4 by using a bolt 38, and the connection port 31 of the shutter device 2 is fitted into the clamp port 3a of the clamp 3 via the pedestal packing 32. Attached to
The leg 35 of the girder support bracket 33 is engaged with the edge 37,
The chain 39 is wound around the gas conduit 4 and the shutter device 2
Is fixed to the clamp 3 .

Next, a non-leak type punch is mounted on the shutter device 2 using bolts 36, and the shutter plate 2 is mounted.
The Horuso of punches open 9 descends from the clamp opening 3a until the gas conduit 4, to cut the gas conduit 4 in Horuso.

Next, the fork is lifted to close the shutter plate 29, and the punch is removed. The chips cut by the forsaw are removed together with the forsaw by a recovery device in the forsaw.

Next, the cable a is drawn into the insertion device main body 1 via the cable insertion guide pipe 13, an inspection device is attached to the tip of the cable a in the insertion device main body 1, and the cable a is connected to the guide tube 8. The connection port 5 of the insertion device main body 1 is connected to the shutter port 2a of the shutter device 2 via the guide 8a, and the insertion device main body 1 is fixed on the shutter device 2 with bolts 36.

Next, the shutter plate 29 is opened, and the guide shaft 6 is lowered into the inspection port 4 a of the gas conduit 4 to direct the inspection device into the gas conduit 4. The work at this time is the viewing window 10, 1
This is performed while looking into the inside from 1 and 12.

Thereafter, a pushing force is applied to the cable a using the cable insertion machine 41 shown in FIG. 1 to insert the inspection equipment into the gas conduit 4.

At the time of this insertion, the sealing device 14 provided on the cable insertion guide pipe 13 contacts the cable a from the outside with the seal packing 19, and adjusts the degree of contact by the tightening force of the cap nut 25, so that the sealing property is improved. Good conditions are set for both the load and the insertion load.

When a predetermined inspection is completed and the inspection equipment is to be collected, the cable insertion machine 41 is turned over so that the cable a
When the inspection device returns into the inspection port 4a, the pullback is stopped once, the guide shaft 6 is pulled up, and the inspection device is collected in the insertion device main body 1. This operation is performed while looking through the viewing windows 10, 11, and 12, as in the case of insertion.

Next, the shutter plate 29 is closed, the insertion device body 1 is removed from the shutter device 2, then the shutter device 2 is removed from the clamp 3, and the clamp opening 3a is closed with a cap or a plug to complete all operations. All that remains is to backfill the working channel.

[0026]

[Effect of the invention The present invention because consisting of such construction and operation above, the following-described effects.

A. Since the insertion window is provided with a viewing window,
When inserting and collecting the inspection equipment, the internal state can be easily understood, and the work is easy.

B. A seal device is attached to the cable insertion guide pipe, and the seal packing of this seal device is provided with a cutout and the sealing performance and insertion load can be adjusted by tightening the cap nut. Since it can be dealt with immediately in the event of a drop, there is no need to worry about gas leakage from this part.

C. Since the pedestal packing is interposed between the clamp port and the connection port of the shutter device, the sealing performance at this connection portion is improved.

D. Since the support bracket is attached to the shutter device and the legs of the support bracket are mounted on the ribs of the clamp, even if a large force is applied when tightening with the chain, no distortion occurs in the shutter device. For this reason, the opening and closing of the shutter plate is smooth, and there is no fear that gas leaks due to deterioration of the sealing property of the shutter plate.

[Brief description of the drawings]

FIG. 1 is a front view of an inspection equipment insertion device embodying the present invention.

FIG. 2 is a plan view of the inspection device insertion device attached to the gas conduit.

FIG. 3 is a side view of the inspection device insertion device in which only the gas conduit is cut.

FIG. 4 is a vertical sectional front view of an inspection device insertion device, a shutter device, a clamp, and a gas conduit.

FIG. 5 is an exploded perspective view of the sealing device.

FIG. 6 is a sectional view of the sealing device in an assembled state.

FIG. 7 is a vertical sectional front view of a shutter device, a clamp, and a gas conduit.

FIG. 8 is a partial longitudinal side view of a shutter device, a clamp, and a gas conduit.

FIG. 9 is a plan view of a pedestal packing.

FIG. 10 is a sectional view taken along line AA ′.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Inspection apparatus main body 2 Shutter device 2a Shutter port 3 Clamp 3a Clamp port 4 Gas conduit 5 Connection port 6 Guide shaft 7 Guide knob 8 Guide cylinder 8a Guide 10, 11, 12 Viewing window 13 Cable insertion guide pipe 14 Sealing device 15 Cable guide pipe 16 Receiving port 17 Stepped portion 18, 22 Holder 19 Seal packing 20 Cable hole 21 Cutting 23 Retainer 24 Engagement rim 25 Cap nut 26 Engagement portion 27 Screw 28 Thread 29 Shutter plate 30 Handle 31 Connection port 32 Base Packing 33 Support bracket 34 Screw 35 Foot 36 Bolt 37 Edge 38 Bolt 39 Chain 40 Prop 41 Cable inserter a Cable

Claims (1)

(57) [Scope of request for utility model registration] 1. A box-shaped insertion device main body having a connection port to be connected to a shutter port formed at a bottom portion, a cable insertion guide device incorporated therein, and a cable insertion guide pipe attached diagonally upward. This
Before the insertion guide device in the main body of the insertion device is visible
In front of and behind the wall and rear wall and the cable insertion pipe
Shaft insertion guide device by providing the viewing window in a part of the visual can top wall a narrow depth into the upper end of the cable insertion guide pipe
A tapered receiving port is formed, and a C-shaped
Insert the presser fitting in the shape of
Tapered seal packing with cable hole with cut off part
Insert a C-shaped presser on the outside of this seal packing.
Insert the metal fittings, further incorporate the retainer outside,
The engaging portion in the socket is engaged with an engaging edge formed on the outer periphery of the retainer.
And then insert this cap nut into the cable insertion guide
Screwed into the thread formed on the outer circumference of the receiving port of Ip
And a bifurcated support bracket attached to the left and right sides of the shutter device
The leg tip is engaged on the edge of the clamp, and the connection port formed on the bottom surface of the shutter device and the clamp
Apparatus for inserting an inspection device into the conduit that the insertion of the base packing between the clamp opening, characterized by the.