A propelling device for PE gas pipe

Abstract

The utility model relates to a kind of propelling device for PE gas pipe, belong to gas pipeline pushing equipment technical field. Including rack, left support base, right support base, left propeller and right propeller, rack one end is fixedly installed with left support base, rack other end is fixedly installed with right support base, left support base and the rack between right support base fixedly installed with left propeller and right propeller, left propeller is fixedly installed with left pipe clamp, right propeller is fixedly installed with right pipe clamp, left support base outside is fixed with left auxiliary support frame, right support base outside is fixed with right auxiliary support frame. The propelling device for PE gas pipe can make PE gas pipe and electric melting pipe fitting accurate butt joint, guarantee subsequent electric melting welding quality, at the same time, solve the operation precision low of existing manual butt joint, prone to not in place, skew problem.

Description

Technical Field

[0001] This utility model relates to a propulsion device for PE gas pipes, belonging to the technical field of gas pipeline moving equipment. Background Technology

[0002] PE gas pipes are gas transmission pipes made of polyethylene. During gas pipeline maintenance, PE electrofusion fittings are typically used to connect the ends of two gas transmission pipes. These fittings contain built-in resistance wires, which are heated by an electrofusion welding machine to achieve molecular-level fusion with the PE gas pipe. PE electrofusion fittings are widely used in gas pipeline networks, adaptable to complex working conditions, and particularly suitable for space-constrained and trenchless applications.

[0003] Currently, the connection process between PE gas pipes and PE electrofusion fittings mainly relies on manual pushing of the PE pipe to insert its end into the positioning step of the electrofusion fitting. However, due to the significant friction between the contact surfaces of the PE gas pipe and the electrofusion fitting, manual insertion easily leads to the pipe not fully reaching the positioning step of the fitting. If the insertion depth of the PE pipe is insufficient, the pipe is inserted crookedly, or the gap between the pipe and fitting is too large, welding defects such as incomplete welds and incomplete penetration will inevitably occur in the subsequent electrofusion welding process, seriously affecting the sealing performance and structural strength of the pipeline connection. Therefore, it is necessary to improve this process. Summary of the Invention

[0004] The purpose of this invention is to provide a device for advancing PE gas pipes that enables precise connection between PE gas pipes and electrofusion fittings, ensuring the quality of subsequent electrofusion welding, while solving the problems of low operational accuracy, incomplete insertion, and misalignment in existing manual connection methods.

[0005] The technical solution of this utility model is: A propulsion device for PE gas pipes includes a rack, a left support base, a right support base, a left propeller, and a right propeller. The device is characterized in that: a left support base is fixedly installed at one end of the rack, and a right support base is fixedly installed at the other end of the rack; a left propeller and a right propeller are spaced apart on the rack between the left and right support bases; a left locking pipe clamp is fixedly installed on the left propeller; a right locking pipe clamp is fixedly installed on the right propeller; a left auxiliary support frame is fixedly installed on the outer side of the left support base, and a right auxiliary support frame is fixedly installed on the outer side of the right support base.

[0006] The left and right support bases are hollow isosceles trapezoidal frame bodies.

[0007] The left and right pushers include a pusher base and a control lever. The pusher base is rectangular. The top of the pusher base has an assembly groove for installing a lock tube clamp. One end face of the pusher base has an assembly hole for inserting a rack. The side face of the pusher base has a side hole for installing the control lever. The assembly hole communicates with the side hole. The circumference of the control lever is provided with tooth grooves that mesh with the rack.

[0008] The left and right locking tube clamps respectively include a first semicircular locking ring and a second semicircular locking ring. The first and second semicircular locking rings are hinged at one end and detachably locked at the other end by bolts and locking grooves. Multiple anti-slip semicircular washers are provided inside the first and second semicircular locking rings.

[0009] The multiple anti-slip semicircular washers inside the first and second semicircular locking rings have diameters that decrease sequentially from the outside to the inside.

[0010] The left and right auxiliary support frames include a base plate, a knob-locking telescopic support rod, and a support platform. The base plate is a long strip, and a knob-locking telescopic support rod is fixedly installed at one end of the base plate. A support platform is fixedly installed at one end of the knob-locking telescopic support rod. The support platform is rectangular, and a "V"-shaped limiting groove is opened at the top of the support rod. Rollers are symmetrically and movably installed on the end face of the limiting groove.

[0011] The advantages of this utility model compared with the prior art are as follows: This propulsion device for PE gas pipes uses the first and second semi-circular locking rings of the left and right pipe clamps to insert the PE gas pipe. A non-slip semi-circular washer matching the pipe diameter is used to fit against the outer wall of the pipe. The bolts are tightened to lock the pipe clamps, ensuring the pipe is fixed without slippage or swaying. This completes the pipe clamping. Then, the two ends of the PE electrofusion fitting are pre-clamped with the two pipe ends to be connected. By rotating the control levers of the left and right propellers, the pipe is smoothly advanced along the rack axis through the meshing of the lever teeth and rack. The auxiliary support frame rollers synchronously guide and reduce drag, allowing the pipe end to insert into the positioning step of the electrofusion fitting before stopping the rotation of the control levers. After the pipe connection is complete, the locking clamps are released, and the control levers are rotated in the opposite direction to reset the propellers, ready for the next pipe insertion operation. This propulsion device for PE gas pipes enables precise connection between the PE gas pipe and the electrofusion fitting, ensuring the quality of subsequent electrofusion welding. It also solves the problems of low operational accuracy, incomplete insertion, and misalignment inherent in existing manual connection methods. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a side view of the structure of this utility model.

[0013] In the diagram: 1. Rack; 2. Left support base; 3. Right support base; 4. Push seat; 5. Control lever; 6. Assembly slot; 7. Gear groove; 8. Left locking pipe clamp; 9. Right locking pipe clamp; 10. First semi-circular locking ring; 11. Second semi-circular locking ring; 12. Anti-slip semi-circular washer; 13. Base plate; 14. Knob-locking telescopic support rod; 15. Support platform; 16. Limiting groove; 17. Roller. Detailed Implementation

[0014] As attached Figure 1-3 As shown The propulsion device for PE gas pipes includes a rack 1, a left support base 2, a right support base 3, a left propeller, and a right propeller. The left support base 2 is fixedly installed at one end of the rack 1, and the right support base 3 is fixedly installed at the other end of the rack 1. The left support base 2 and the right support base 3 are hollow isosceles trapezoidal frame bodies.

[0015] A left and right pusher are installed at intervals on the rack 1 between the left support base 2 and the right support base 3. The left and right pushers include a pusher seat 4 and an operating lever 5. The pusher seat 4 is a rectangular body. The top of the pusher seat 4 has an assembly groove 6 for installing a lock tube clamp. One end face of the pusher seat 4 has an assembly hole for inserting the rack 1. The side of the pusher seat 4 has a side hole for installing the operating lever 5. The assembly hole communicates with the side hole. The circumference of the operating lever 5 is provided with a tooth groove 7 that meshes with the rack 1. In use, by rotating the operating lever 5, the tooth groove 7 of the operating lever 5 meshes with the rack 1, and the force of the rotation of the operating lever 5 is converted into the force of the pusher seat 4 sliding along the axial direction of the rack 1.

[0016] A left locking pipe clamp 8 is fixedly installed on the left pusher, and a right locking pipe clamp 9 is fixedly installed on the right pusher. The left locking pipe clamp 8 and the right locking pipe clamp 9 each include a first semicircular locking ring 10 and a second semicircular locking ring 11. One end of the first semicircular locking ring 10 and the second semicircular locking ring 11 are hinged together, and the other end of the first semicircular locking ring 10 and the second semicircular locking ring 11 are detachably locked together by bolts and locking grooves. Multiple anti-slip semicircular washers 12 are provided inside the first semicircular locking ring 10 and the second semicircular locking ring 11. The diameter of the multiple anti-slip semicircular washers 12 inside the first semicircular locking ring 10 and the second semicircular locking ring 11 decreases from the outside to the inside. In use, multiple sets of anti-slip semicircular washers 12 with different diameters are used. Through the clamping action of different washers against the outer wall of the pipe, it can adapt to PE gas pipes of different diameters, ensuring that the pipe does not slip or wobble during the subsequent pushing process, and providing a stable and reliable clamping foundation for the subsequent pushing and docking process.

[0017] A left auxiliary support frame is fixedly installed on the outer side of the left support base 2, and a right auxiliary support frame is fixedly installed on the outer side of the right support base 3. The left and right auxiliary support frames include a base plate 13, a knob-locking telescopic support rod 14, and a support platform 15. The base plate 13 is a long strip plate, and its length can be appropriately adapted according to the length of the PE gas pipe to be connected. One end of the base plate 13 is fixedly connected to the auxiliary support frame (left auxiliary support frame and right auxiliary support frame), and one end of the base plate 13 is fixed. A knob-locking telescopic support rod 14 is installed. The knob-locking telescopic support rod 14 is a commercially available part. A support platform 15 is fixedly installed on one end of the knob-locking telescopic support rod 14. The support platform 15 is a rectangular body. A "V"-shaped limiting groove 16 is opened on the top of the support rod. An assembly groove 6 for installing a roller 17 is opened on the end face of the limiting groove 16. The roller 17 is movably installed in the assembly groove 6 through a bearing and a short shaft. A portion of the circumference of the roller 17 is exposed on the outside of the assembly groove 6.

[0018] When using the propulsion device for PE gas pipes, firstly, the device is debugged. The device is laid out horizontally, and the knob-locking telescopic support rods 14 of the left and right auxiliary support frames are adjusted so that the axis of the PE gas pipe to be propelled on the roller 17 in the V-groove of the support platform 15 is coaxial with the left and right locking pipe clamps 9. Then, the knob-locking telescopic support rods 14 are locked, and the distance between the left and right propellers on the rack 1 is adjusted to match the pipe length. Then, the first semi-circular locking ring 10 and the second semi-circular locking ring 11 of the left and right locking pipe clamps 9 are opened, the PE gas pipe is inserted, and the anti-slip semi-circular washer 12 matching the pipe diameter is used to fit against the outer wall of the pipe. The bolts are tightened to lock the locking pipe clamps, so that the pipe is fixed without slippage or sway, thus completing the clamping of the pipe.

[0019] Next, the PE electrofusion fitting is placed between the two pipes to be joined. The two ends of the PE electrofusion fitting are pre-engaged with the ends of the two pipes. The control levers 5 of the left and right pushers are rotated. Utilizing the meshing transmission between the toothed groove 7 of the control lever 5 and the rack 1, the pipe is smoothly advanced along the axial direction of the rack 1. The auxiliary support roller 17 synchronously guides and reduces resistance, allowing the pipe end to insert into the positioning step of the electrofusion fitting before stopping the rotation of the control lever 5. After the pipes are joined, the locking clamp is released, and the control lever 5 is rotated in the opposite direction to reset the pushers, ready for the next pipe insertion operation. This pushing device for PE gas pipes enables precise joining between the PE gas pipe and the electrofusion fitting, ensuring the quality of subsequent electrofusion welding. At the same time, it solves the problems of low operational accuracy, incomplete insertion, and misalignment inherent in existing manual joining methods.

Claims

1. A propulsion device for PE gas pipes, comprising a rack (1), a left support base (2), a right support base (3), a left propeller, and a right propeller, characterized in that: A left support base (2) is fixedly installed at one end of the rack (1), and a right support base (3) is fixedly installed at the other end of the rack (1). A left pusher and a right pusher are installed on the rack (1) between the left support base (2) and the right support base (3). A left locking tube clamp (8) is fixedly installed on the left pusher, and a right locking tube clamp (9) is fixedly installed on the right pusher. A left auxiliary support frame is fixedly installed on the outside of the left support base (2), and a right auxiliary support frame is fixedly installed on the outside of the right support base (3).

2. The propulsion device for a PE gas pipe according to claim 1, characterized in that: The left support base (2) and the right support base (3) are hollow isosceles trapezoidal frames.

3. The propulsion device for a PE gas pipe according to claim 1, characterized in that: The left and right thrusters include a thrust base (4) and a control lever (5). The thrust base (4) is a rectangular body. The top of the thrust base (4) is provided with an assembly slot (6) for installing a lock pipe clamp. One end face of the thrust base (4) is provided with an assembly hole for inserting a rack (1). The side of the thrust base (4) is provided with a side hole for installing the control lever (5). The assembly hole communicates with the side hole. The circumference of the control lever (5) is provided with a tooth groove (7) that meshes with the rack (1).

4. The propulsion device for a PE gas pipe according to claim 1, characterized in that: The left locking tube clamp (8) and the right locking tube clamp (9) respectively include a first semicircular locking ring (10) and a second semicircular locking ring (11). The first semicircular locking ring (10) and the second semicircular locking ring (11) are hinged at one end, and the other end of the first semicircular locking ring (10) and the second semicircular locking ring (11) are detachably locked by bolts and locking grooves. Multiple anti-slip semicircular washers (12) are provided inside the first semicircular locking ring (10) and the second semicircular locking ring (11).

5. A propulsion device for a PE gas pipe according to claim 4, characterized in that: The multiple anti-slip semicircular washers (12) inside the first semicircular locking ring (10) and the second semicircular locking ring (11) have diameters that decrease sequentially from the outside to the inside.

6. The propulsion device for a PE gas pipe according to claim 1, characterized in that: The left and right auxiliary support frames include a base plate (13), a knob-locking telescopic support rod (14), and a support platform (15). The base plate (13) is a long strip. A knob-locking telescopic support rod (14) is fixedly installed at one end of the base plate (13). A support platform (15) is fixedly installed at one end of the knob-locking telescopic support rod (14). The support platform (15) is a rectangular body. A "V"-shaped limiting groove (16) is opened at the top of the support rod. Rollers (17) are symmetrically and movably installed on the end face of the limiting groove (16).

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