JPS6116820B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an in-sewage pipe packing cutter device that automatically cuts packing exposed in a small-diameter sewer pipe.

In general, in the case of sewer pipes using humid pipes, etc., ring-shaped packing made of rubber or the like is interposed at the joints (spike joints, etc.) to prevent water leakage. However, in this case, due to incomplete construction (so-called shoddy construction) or ground fluctuations during long-term use, the packing often sag into the pipe, causing clogging of the pipe. Additionally, tree roots and the like may occasionally protrude from this joint, so it is desirable to periodically inspect the pipes.

However, with the recent development of compact industrial television cameras, it has become relatively easy to check small-diameter sewer pipes. However, there is still no means to remotely remove the packing that hangs down inside the pipe after inspection, especially in small diameter pipes that cannot be accessed by workers (for example,
250 to φ350) is difficult to clean due to clogging.

In view of the above-mentioned circumstances, the present invention focuses on the point that it would be of great benefit to those skilled in the art if a cutter device capable of reliably cutting out the packing by remote control could be provided,
The present invention was completed after repeated experiments.

That is, the present invention provides an electric motor and a base that can be rotated 360 degrees by the motor on a skid that can be pulled from front to back by a winch, etc., and a clamp that is movable by an air cylinder on the base. The cutter device is equipped with a mold blade and an air cylinder etc. that allows the blade to move up and down, and this cutter device is connected to a television camera skid, and while watching the monitor of the television camera (on the ground), The device operates two cylinders and a monitor to remove the hanging packing.

Hereinafter, the present invention will be explained with reference to the drawings of one embodiment.

1 is a two-sled type skid with traction wires 2 arranged at the front and rear, and an electric motor 3 is mounted on a pedestal part 1a provided at the top of the skid 1, with the drive shaft part 3a of the motor 3 facing in the longitudinal direction of the skid. fixed,
At the end of a rotating shaft 6 supported by a support plate 5 which rotates via transmission gears 4 and 4' disposed on the drive shaft portion 3a,
Attach the hooked support part 7a of the base 7 facing in the longitudinal direction, and rotate the base 7 180 degrees to the right and left (360 degrees as a whole).
゜) At the same time as rotating, a blade air cylinder 9 facing in the longitudinal direction is installed in parallel on this base 7 with a linter mechanism 8 consisting of front and rear link members 8a interposed, and parallel to the upper part of the cylinder 9. A clamping type blade 11 consisting of a movable blade part 11a and a fixed blade part 11b is provided at the tip of a blade support rod 10 arranged as a blade. In this case, the fixed blade part 11b serving as a receiving blade is fixed to the tip of the blade support rod 10, and the movable blade part 11a
The sliding piece 12 at the base is slidably fitted to the blade support rod 10, and the lower end of the sliding piece 12 is arranged parallel to the middle between the blade support rod 10 and the cylinder 9. It is fixed to an interlocking shaft 13 that moves together with the rod 9a of the cylinder 9. 14 is an upright air cylinder whose lower end is fixed to the base 7, and the upper end of the rod 14a of the cylinder 14 is engaged with a receiving piece 15 arranged on the side of the blade support rod 10.
The blade support rod 10 and the blade cylinder 9 integrated therewith are movable up and down, and together constitute a packing cutter device 16. 17 is the pedestal part 1a
A terminal plate stands up at the rear end, and the electric wire 19 connected to the electrical connector part 18 of the terminal plate 17 is connected to the motor 3.
Air hoses 22 and 23 connected to the hose receivers 20 and 21 are guided to the blade cylinder 9 and the lifting cylinder 14. The pair of movable blade portion 11a and fixed blade portion 11b is formed into a circular arc a so as to be able to cope with the wall surface of the sewer pipe in use.

To explain this operation now, first, when cutting off the packing 25 hanging down at the joint 24a of the sewer pipe 24, for example, a television camera 26 is placed at the front of the skid 1 on the blade 11 side of the packing cutter device 16. Attach the connecting wire 2 connected to the end of the television skid 27 which faces the lens portion 26a so as to photograph the blade body 11 (if necessary, place the television camera 26 behind the blade body 11 side and follow it). The traction wire 2 and TV cable 28 placed at the other end of the TV skid 27 are guided to a TV car 29 placed on the ground in one manhole A, and monitored using a monitor 30. It becomes. Further, the traction wire 2, air hose 31, and operating cable 32 connected to the other end of the skid 1 of the packing cutter device 16 are guided to the work vehicle 33 located on the ground of the other manhole A'.

Here, the position of the blade 11 of the packing cutter device 16 is moved at regular intervals while looking at the monitor 30 shown on the television camera 26 of the television skid 27.
0 is conveniently provided on the TV car 29 side and the work vehicle 33 side), and the blade 11 is made to face the part of the packing 25 that hangs down. This traction wire 2,
The hoisting or unwinding operation of step 2 is performed by a winch (not shown) provided on the television car 29 side or the working vehicle 33 side. In the figure, 35 is a generator on the work vehicle 33;
6 indicates the same air compressor.

Furthermore, when moving the packing cutter device 16, the movable blade portion 11a and the fixed blade portion 11b of the clamping type blade body 11 are left open to facilitate positioning for cutting the hanging packing 25. do. In this case, the rod 9 of the blade cylinder 9
Part a is contracted into the main body, the sliding piece 12 integrated with the interlocking shaft 13 connected parallel to the rod 9a is retreated, and the movable blade part 11a at the position of the sliding piece 12 is moved. It is.

Next, after the pair of movable blade portion 11a and fixed blade portion 11b exhibiting this opening come to the packing 25 position where they are exposed from the joint portion 24a, the operation panel of the work vehicle 33 is operated to drive the motor 3 as appropriate. The movable blade part 11a and the fixed blade part 11b, which are arranged on the base 7 which rotates by an appropriate angle in conjunction with the motor 3, are positioned straddling the front and back of the packing 25 (see FIG. 1). At this time, the lifting cylinder 14 is actuated in advance, and the rod 14a is moved upward to raise the blade support rod 10, the interlocking shaft 13, and the blade cylinder 9 with the movement of the link mechanism 8 (pipe diameter ), the blade support rod 10 in the longitudinal direction
The movable blade part 11a and the fixed blade part 11b, which have an arcuate shape orthogonal to the sewage pipe 24, are positioned close to or in contact with the wall surface of the sewer pipe 24.

In this way, after the movable blade part 11a and the fixed blade part 11b are arranged at the packing 25 position, the blade cylinder 9 is operated by operating the operation panel part 34, and this rod 9a is moved forward. , the rod 9a
The movable blade part 11a, which is integrated with the interlocking shaft 13, rushes toward the fixed blade part 11b and instantly cuts the packing 25 interposed in the middle ^. pressurized operation). Of course, since the fixed blade part 11b and the movable blade part 11a, which serve as receiving blades, have an arc shape along the wall surface, the packing 25 is cut from the exposed base end. In addition, the thin movable blade portion 11a that serves as the cutting blade
can be replaced without removing the holding piece 11a' (see Figures 7 and 8).

After that, the rod 9a of the blade cylinder 9 is
The movable blade part 11a and the fixed blade part 11b are moved backward, and the movable blade part 11a and the fixed blade part 11b are expanded.Then, the motor 3 is appropriately driven again, and in conjunction with this, the base 7 part is further rotated by an appropriate angle, and the movable blade part 11a and the fixed blade part 11b are moved apart. The part 11b faces the base end of the remaining hanging packing 25 (first
(See Figure 3). Next, the blade cylinder 9 is actuated to send the rod 9a forward, and the movable blade portion 11a linked thereto is thrust toward the fixed blade portion 11b to cut the packing 25. At this time, if the rod 9a of the blade cylinder 9 is not contracted, that is, if the movable blade part 11a and the fixed blade part 11b are sandwiched, the packing 25 pieces will remain in the retained state. By moving the skid 1, it is also possible to take out the cut 25 pieces of packing to the outside. .
Depending on the object, the movable blade part 11 may be removed immediately after cutting.
It is also possible to open the part a and the fixed blade part 11b to allow the packing 25 pieces to fall and drain them with the sewage flowing downward.

In addition, after removing the sagging patch 25,
This joint portion 24a is filled with a filler using a known hacker means.

In addition to the cylinder 14 shown in the drawings, the same effect can be achieved by using appropriate means such as a motor or hydraulic pressure to move the clamping type blade 11 up and down, and the link mechanism may be a cam mechanism. Furthermore, the skid 1 can of course be replaced with a skid according to the pipe diameter, and the base 7 can also be used to adjust the vertical position of the blade 11 by vertically shifting the position of the rotating shaft 6 attached to the hook-folding support 7a. Adjustment is possible.

As described above, the packing cutter device of the present invention includes a base mounted on a skid that can be freely rotated by a motor, and a clamp-type blade movable by a blade cylinder on the base, and the blade. By arranging a cylinder etc. that can be raised and lowered according to the pipe diameter,
Even in small-diameter sewer pipes (φ250 to φ350, etc.), the packing position ensures that the blade hangs down into the pipe at a remote location (above ground) while being monitored by the connected TV camera skid. (rubber ring detachment), the cutting is done automatically by the operation of the blade cylinder, and the blade is of a pinch type, so the cut packing pieces can be taken out as they are. I can do it. Of course, it is also possible to cut protruding obstacles such as tree roots. Therefore, it is possible to eliminate the reduction in the flow capacity of sewage flowing down and the clogging of pipes, which have been caused by the removal of packing, and it is expected to reduce overwork to sewage treatment plants and treatment costs. It has the effect of

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a side view, Fig. 3 is a side view of the blade cylinder in the operating state, and Fig. 4 is a view of the blade being lifted up. 5 is a plan view of the blade body with the blade tilted 90 degrees horizontally, FIG. Figure 9 is an explanatory diagram showing the rotation of the base, Figure 10 is an explanatory diagram of the usage state,
1, 12, 13, 14, and 15 are explanatory views of the cutter state as seen from the front of the pipe. DESCRIPTION OF SYMBOLS 1... Skid, 3... Motor, 6... Rotating shaft, 7... Base, 8... Link mechanism, 9... Cylinder for blade, 9a... Rod, 10... Blade support rod, 11 ...Blade body, 11a...Movable blade part, 11
b...Fixed blade part, 14...Lifting cylinder, a
……arc.

Claims (1)

[Scope of Claims] 1. A blade which is provided with a base rotatable in the circumferential direction of the conduit by a motor on the skid, a link mechanism etc. interposed on the base, and which can be raised and lowered by a cylinder etc. At the same time, the movable blade part of the pinch type blade body installed in parallel on the upper part of the blade cylinder is moved back and forth in conjunction with the cylinder rod, and the movable blade part of the pinch type blade body is installed in the longitudinal direction. An in-sewage pipe packing cutter device characterized by cutting the packing interposed in the sewer pipe. 2. The sewer pipe packing cutter device according to claim 1, wherein the pinching type blade is an arcuate blade.