JP3392287B2 - Pipe inner surface joining device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe inner surface joining apparatus. 2. Description of the Related Art As one type of resin pipe such as FRPM pipe,
An insertion hole formed at the end of the other tube is inserted into a reception hole formed at the end of one tube to be joined to each other, and an annular sealing material is compressed between the reception hole openings. A so-called slip-on type pipe joint is known. Among resin pipes of this type, especially those with large diameters
In many cases, the socket and the insertion port of the pipe joint are joined by a so-called inner surface joining device that joins the inner side of the pipe. FIGS. 7 and 8 show an example of a conventional pipe inner surface joining apparatus. Here, reference numerals 1 and 1 denote existing pipes made of a horizontal resin, and these pipes 1 and 1 are joined to each other by inserting the insertion port 3 into the receiving port 2 as described above. . Numeral 4 denotes a new resin pipe in the horizontal direction. The new pipe 4 is joined to the existing pipe 1. In this case, the insertion port 3 of the new pipe 4 is connected to the existing pipe 1. Is inserted into the receiving port 2 of the first embodiment. [0004] Reference numeral 6 denotes a conventional inner surface joining apparatus. Where 7
Is a stand, which can move inside the pipe 1 in the axial direction of the pipe by having wheels 8. This stand 7 has a tube 1
Are provided to extend radially toward a plurality of positions along the circumferential direction. And
At the end of each arm 9, when this arm 9 is extended, a reaction force jig 10 which engages with the end face of the insertion opening 3 of another tube 1 inserted inside the receiving opening 2 of the existing tube 1. Is provided. [0005] One end of a wire 11 that passes through the interior of the existing pipe 1 and the new pipe 4 in the axial direction of the pipe is connected to each reaction jig 10. A connecting hook 12 is connected to the other end of the wire 11, and the connecting hook 12 is connected to the end of the new tube 4 that is farther from the existing tube 1, that is, the end of the socket 2 of the tube 4. Get involved in the department. And each wire 11
Is provided with a manual insertion device 13 constituted by a lever block or the like. In such a configuration, when joining a new pipe 4 to the existing pipe 1, the stand 7 is moved inside the existing pipe 1, and the stand 7 is moved between these existing pipes 1. At the joint between the receiving port 2 and the insertion port 3.
Then, each arm 9 is extended and the reaction force jig 10 is inserted into the opening 3.
To the end face of. In addition, the wire 11 is passed through the existing pipe 1 and the new pipe 4, and the joining hook 12 is connected to the new pipe 4.
To the end of the socket 2. [0007] Then, as shown in FIG. 7, an operator 14 inserts the insertion tool so that the entire length of the wire 11 is shortened by tensioning the wire 11.
By operating 13, the joining hook 12 and the reaction force jig 10 are attracted to each other. As a result, the new pipe 4 is moved toward the existing pipe 1, and the insertion port 3 of the new pipe 4 is inserted into the receiving port 2 of the existing pipe 1, and a new pipe is inserted into the existing pipe 1. 4 are joined. At this time, when tensioning the wire 11 located at the upper part of the tube, the operator 14 operates the insertion tool 13 on the scaffold plate 15. After that, the wire is operated by the operation of the insertion device 13.
After loosening 11, the joining hook 12 is removed from the end of the socket 2 of the tube 4. Also, the arm 9 is shortened, and the reaction force jig 10 is removed from the end of the insertion opening 3 of the tube 1. A stand 7 having a reaction force jig 10 at the tip of the arm 9 and a wire
11 and the insertion tool 13 and the connecting hook 12
The next new pipe is joined by moving the pipe toward the joint between the pipe and the existing pipe 1. However, in such a conventional device, the weight of the stand 7 having the reaction force jig 10 at the tip of the arm 9, the insertion device 13, the joining hook 12, etc. There is a problem that the objects must be handled and moved manually by the worker 14 in the pipe. Insertion equipment 13
There is also a problem that the work for joining requires labor and time, for example, because of manual operation. In addition, there is a problem that work at a high place such as work on the scaffold plate 15 is involved. Therefore, the present invention solves the above problems and does not require heavy work inside the pipe, can easily join the pipes, and furthermore, does not require high-level work inside the pipe. It is intended to obtain a joining device. In order to achieve this object, the present invention provides a bogie which is capable of self-running in a pipe in the axial direction of the pipe and which can be stopped inside an existing pipe. A first extending in the axial direction of the pipe from the bogie toward the inner side of the existing pipe;
An arm, a reaction force receiving member connected to the distal end of the first arm and capable of engaging with the end face on the back side of the existing pipe; and a pipe extending from the bogie to the opening side of the existing pipe. A second arm extending in the axial direction of the pipe and penetrating the interior of a new pipe adjacent to the existing pipe in the axial direction of the pipe; and a second arm connected to the tip of the second arm and A joining force imparting tool capable of engaging with an end surface of the pipe farther from the existing pipe, and at least one of the first arm and the second arm being shortened in the axial direction of the pipe, and A power type pulling device capable of pulling the force receiving device and the joining force applying device toward each other in the axial direction of the pipe is provided. With this configuration, the first arm and the second arm are provided on the self-propelled bogie, and the arm is provided with the reaction force receiving device, the joining force applying device, and the pulling device. Therefore, all the devices necessary for joining the pipes are mounted on the self-propelled bogie, so that these devices can be easily handled and moved in the pipes. In addition, by operating the power type pulling device to shorten at least one of the arms, and thereby pulling the reaction force receiving device and the joining force applying device toward each other in the axial direction of the tube, the joining of the tubes can be easily performed. Done. In addition, since the reaction force receiving device and the joining force applying device can be pulled toward each other in the axial direction of the pipe only by operating the power type drawing device, the operator operates the insertion device at a high place as in the conventional case. The joining of the tubes takes place without the need. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 to 6, reference numerals 1 and 1 denote existing horizontal resin pipes, 2 denotes a receiving port, 3 denotes an insertion port, and 4 denotes a horizontal resin resin pipe. New tubes, which are similar in configuration to the conventional ones shown in FIGS. The point that the insertion port 3 of the new pipe 4 is inserted into the receiving port 2 of the existing pipe 1 is also the same as the conventional one. An annular rubber seal member 5 is attached to the outer periphery of the distal end of the insertion port 3 by bonding or the like. A required sealing function is provided between the mouth insertion openings. Reference numeral 21 denotes a pipe inner surface joining apparatus according to the present invention. The inner surface joining device 21 has a self-propelled vehicle 22 capable of self-propelling inside the pipes 1 and 4 in the axial direction of the pipe.
Is configured such that a free wheel 24 having a caster structure and a traveling wheel 25 are provided on a base portion 23 located at the bottom of the tube. Reference numeral 26 denotes a motor, which can apply a traveling force to the traveling wheels 25 via a chain or the like. The self-propelled carriage 22 is composed of a pair of carriage arms 2 extending upward from both sides of the base 23 along the inner surfaces of the tubes 1 and 4.
7 and 27, and each bogie arm 27 is constituted by a pair of arm members 28 and 28, respectively. Dolly arm 27,
The tips 29, 29 of the 27 are connected to the tubes 1, 4
At a distance from each other in the direction of the horizontal diameter of the tubes 1, 4. Each tip portion 29 is provided in the axial direction of the pipe between the tip ends of the arm members 28, 28. Each arm member 28 is provided with a guide wheel 30 having a caster structure.
The arm members 28 are supported by contacting the inner surfaces of the tubes 1 and 4. When the self-propelled carriage 22 stops inside the existing pipe 1, one end of the tip end 29 of the carriage arm 27 is connected to a hinge 32 swingable about a vertical axis. A first arm 33 extending in the axial direction of the tube toward the inner side of the existing tube 1 is connected. A pair of the first arms 33 is provided corresponding to the bogie arm 27, and the distal ends of the pair of first arms 33, 33 are connected to a reaction force bogie 34. The reaction force carrier 34 has a base 35, and the base 35 is provided with idle wheels 36 of a caster structure, so that it is movable in the axial direction of the pipe. Mount 36
Has a body 37 arranged along the direction of the horizontal diameter of the tubes 1, 4, with the tubes 1, 4
The cylinder devices 38 which extend and contract along the direction of the horizontal diameter of each are built in. Telescopic part 39 of each cylinder device 38
A telescopic bar 40 protruding from the main body 37 is fixed to the front end of each telescopic bar 40 via a hinge 41 that can swing about a vertical axis. It is connected to the tip. At the end of the telescopic bar 40, an L-shaped metal reaction force receiver 43 is provided. This reaction force receiver 43
When the telescopic bar 40 extends from the main body 37 due to the extension of the cylinder device 38 of the reaction cart 34, when the telescopic bar 40 hits the inner periphery of the front end of the insertion port 3 of the existing pipe 1, The third end surface 44 is configured to engage with the third end surface 44. The reaction force receiving member 43 is provided with a rubber pad 45 in order to prevent the reaction force receiving member 43 from damaging the inner surface and the end surface 44 of the insertion opening 3 of the resin tube 1. . The first arm 33 has a main body 47. The main body 47 has a built-in cylinder device 48 as a pulling device that expands and contracts in the longitudinal direction of the first arm 33. A telescopic rod 50 is fixed to a telescopic part 49 of the cylinder device 48. The telescopic rod 50 protrudes from the main body part 47, and the tip of the telescopic rod 50 extends through the above-mentioned hinge 41 to the telescopic bar 40 of the reaction force carriage 34. Is connected to the front end. As described above, the first arm 33 is provided with the telescopic cylinder device 48, and one end and the other end thereof are connected to the distal end portion 29 of the bogie arm 27 and the reaction force bogie 34 via the hinges 32 and 41, respectively. Since it is connected to the telescopic bar 40, it can swing in the horizontal direction following the telescopic operation of the telescopic bar 40. At the other end of the tip portion 29 of the bogie arm 27 of the self-propelled bogie 22, a hinge 53 swingable about a vertical axis is provided.
The second arm 54 is inserted through the inside of a new pipe 4 adjacent to the existing pipe 1 in which the self-propelled carriage 22 stops inside in the axial direction of the pipe. As with the first arm 33, a pair of the second arms 54 is provided corresponding to the bogie arm 27. The second arm 54 includes a sheath portion 55 made of a hollow square member, and a telescopic arm portion 56 made of a square member slidably inserted into the sheath portion 55 from the tip of the sheath portion 55. Having. A plurality of positioning holes 57 are provided along the length direction of the sheath portion 55, and any positioning holes 57 and telescopic arm portions are provided.
By passing the positioning pin 58 through the hole formed in the hole 56, the amount of the telescopic arm portion 56 entering the sheath portion 55, that is, the entire length of the second arm 54 can be adjusted. The distal end of the telescopic arm portion 56 of the second arm 54 is provided with a metal hook as a bonding force imparting tool that can swing around a hinge 60 that can swing around a vertical axis.
61 are provided. The hook 61 can be engaged with an end face of the new pipe 4 which is remote from the existing pipe 1, that is, an end face 62 of the socket 2 of the new pipe 4. The hook 61 is provided with a rubber pad 63 to prevent the hook 61 from damaging the inner surface and the end surface 62 of the receptacle 2 of the resin tube 4. A hydraulic pump 65 and hydraulic valves 66 for driving the cylinder devices 38 and 48, and a power supply operation box 67 are mounted on the base 23 of the self-propelled carriage 22. In such a configuration, when joining a new pipe 4 to the existing pipe 1, both pipes 1,
4 is approached in advance. Therefore, the self-propelled carriage 22 is caused to travel from the inner side of the existing pipe 1 toward the joint with the pipe 4 by driving the motor 26. At this time, the first and second
Arms 33, 54 will also move with the trolley 22,
The reaction cart 34 connected to the self-propelled cart 22 via the first arm 33 also moves together. Self-propelled trolley 22
Is stopped near the receiving port 2 on the opening side of the existing pipe 1. Then, the reaction force bogie 34, which is spaced from the self-propelled bogie 22 by the length of the first arm 33, stops near the insertion port 3 on the opposite side of the existing pipe 1. At this time, all the devices can be moved together with the self-propelled trolley 22, so that these devices can be easily handled and moved inside the pipe 1. Next, as shown in FIG. 1, an operator 70 operates the hydraulic valves 66 to extend and retract the cylinder device 48 of the first arm 33, thereby moving only the reaction force carrier 34 to the axis of the pipe. The tube 1 is moved in the center direction, and the reaction force receiver 43 is positioned corresponding to the end of the insertion opening 3 of the tube 1. Next, the cylinder device 38 of the reaction force carriage 34 is extended, and the reaction force receiving member 43 is moved in the radial direction of the tube to approach the inner periphery of the end of the insertion opening 3. And
If necessary, extend and retract the first arm 33 again,
The reaction force receiver 43 is engaged with the inner surface and the distal end surface 44 of the insertion opening 3 of the tube 1. Further, by adjusting the amount of the retractable arm portion 56 to enter the sheath portion 55 of the second arm 54 and passing the positioning pin 58 through the positioning hole 57 at an appropriate position, the second arm 54 is newly inserted. Set to a length corresponding to the appropriate pipe 4. And
The second arm 54 is pivoted in the horizontal direction around the hinge 53 so that the tip of the telescopic arm portion 56 approaches the inner surface of the socket 2 of the tube 4 and then hooks around the hinge 60.
The hook 61 is swung so that the hook 61 is attached to the end face 62 of the socket 2 of the pipe 4.
Face to face. Thereafter, the second arm 54 is shortened by changing the engagement between the positioning pin 58 and the positioning hole 57, or the self-propelled vehicle is operated by operating the cylinder device 48.
The hook 61 is engaged with the end face 62 of the socket 2 of the tube 4 by moving the 22 and the second arm 54 in the axial direction of the tube.
FIG. 3 shows the state at this time. In this state, the cylinder device of the first arm 33
When the length 48 is shortened, the first arm 33 is shortened. At this time, since the reaction force receiving member 43 is engaged with the front end surface 44 of the insertion opening of the existing pipe 1, the reaction force carriage 34 does not stop and move to the same position, and thus the self-propelled carriage 22 And the second arm
54 moves in a direction approaching the reaction cart 34. Therefore, the new pipe 4 in a state where the hook 61 of the second arm 54 is engaged with the end face 62 of the socket 2 is approached to the existing pipe 1, and the insertion port 3 of this new pipe 4 is connected to the existing pipe 1. And the compression of the sealing material 5 is performed. Thereby, the joining of the tubes 1 and 4 is completed. At this time, a pair of first arms 33 provided at a distance in the direction of the horizontal diameter of the tubes 1 and 4, respectively.
And the second arm 54 to generate an insertion force,
This insertion force is evenly distributed in the circumferential direction of the tube, so that a smooth insertion operation can be performed. Also, the cylinder device
Since the insertion force is generated by actuating the 48, the operator 70 only has to operate the lever of the hydraulic valves 66 and the like, and can easily perform the insertion work without requiring any manual operation.
For this reason, even if the pipes 1 and 4 have a large diameter, these pipes 1 and 4 can be easily joined together. In addition, there is an advantage that there is no need for dangerous work at a high place. Thereafter, the cylinder device 48 of the first arm 33
And the hook with the cylinder device 38 of the reaction force cart 34
Remove 61 from socket 2 of tube 4 and
And the connection with the insertion opening 3 of the pipe 1 is released. This allows the self-propelled carriage 22 to travel in the pipe again, and is moved toward the next joint. In the above description, the first arm 33 is provided with the cylinder device 48. Alternatively, the second arm 54 may be provided with a cylinder device. Alternatively, both arms 33 and 54 may be configured to include a cylinder device. Further, in the above, a reaction force receiving device that engages with the insertion opening 3 of the existing pipe 1.
43 is formed in an L-shape, and the joining force imparting member relating to the receiving port 2 of the new pipe 4 is constituted by the hook 61, but these constitutions may be other appropriate ones. Further, instead of providing the reaction force carriage 34 that supports the pair of reaction force receiving members 43, 43 as described above, a unit that individually supports each reaction force receiving member 43 can be used. In the case of joining a new pipe having a similar diameter to an existing pipe having a large diameter of about 3000 mm, according to the above-described conventional one, four workers are required. Took 30 minutes. On the other hand, according to the present invention, the joining could be performed by two workers in only 10 minutes. As described above, according to the present invention, the joining operation of a large-diameter pipe can be quickly performed while saving labor. Moreover, as described above, since work at a high place is not required, it is possible to contribute to improvement of the work environment. As described above, according to the present invention, the first arm and the second arm are provided on the self-propelled bogie, and these arms are provided with the reaction force receiving device, the joining force applying device, Since the pulling device is provided, all equipment necessary for joining the pipes can be mounted on the self-propelled bogie, so that the equipment can be easily handled and moved in the pipe. . In addition, by operating the power-type drawing device, the reaction force receiving device and the joining force imparting device are drawn toward each other in the axial direction of the tubes, so that the tubes can be easily joined to each other. Moreover, there is an advantage that the operator does not need to operate the insertion device at a high place at this time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view for explaining a use state of a pipe inner surface joining apparatus according to the present invention. FIG. 2 is a longitudinal sectional view showing a schematic configuration of a portion shown in FIG. FIG. 3 is a vertical cross-sectional view of a main part of the bonding apparatus in plan view. FIG. 4 is a longitudinal sectional view of a portion shown in FIG. 3 as viewed from the front. FIG. 5 is a cross-sectional view of the part shown in FIG. FIG. 6 is an enlarged detail view showing a main part in FIG. 3; FIG. 7 is a schematic perspective view for explaining a use state of a conventional pipe inner surface joining device. FIG. 8 is a longitudinal sectional view showing a schematic configuration of a portion shown in FIG. 7; [Explanation of Signs] 1 Existing pipe 4 New pipe 22 Self-propelled carriage 33 First arm 43 Reaction force receiver 48 Cylinder device (pulling device) 54 Second arm 61 Hook (joining force imparting device)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-197725 (JP, A) JP-A-63-206532 (JP, A) JP-A-7-139661 (JP, A) JP-A-4- 362384 (JP, A) JP-A-57-23600 (JP, A) JP-A-4-54382 (JP, U) JP-A-3-39681 (JP, U) JP50-503928 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) F16L 1/00 F16L 1/02 E21D 11/40

Claims (1)

(57) [Claims 1] A bogie that is capable of self-running in the pipe in the axial direction of the pipe, and that can be stopped inside the existing pipe, and a back of the existing pipe from the bogie. A first arm extending in the axial direction of the tube toward the side, a reaction force receiving device connected to a distal end of the first arm and capable of engaging with a rear end surface of the existing tube; A second arm extending in the axial direction of the pipe from the bogie toward the opening side of the existing pipe, and penetrating the interior of a new pipe adjacent to the existing pipe in the axial direction of the pipe; At least one of the first arm and the second arm connected to the distal end of the second arm and capable of engaging with the end face of the new pipe farther from the existing pipe; One is shortened in the axial direction of the pipe, and the reaction force receiving device and the joining force imparting device are alternated. Inner surface bonding apparatus of the tube and having a possible-powered feedback unit drawn in the axial direction of the tube.