A pipe butt joint auxiliary tool

By designing auxiliary tools for pipe connection, and utilizing the combination of arc-shaped clamps and impact end plates, the problem of high friction during PE pipe connection was solved, enabling uniform impact and smooth movement of the electrofusion sleeve, thus reducing the risk of damage and construction costs.

CN224311237UActive Publication Date: 2026-06-02GUANGZHOU GAS GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU GAS GROUP CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-02

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  • Figure CN224311237U_ABST
    Figure CN224311237U_ABST
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Abstract

The utility model discloses a kind of pipeline butt joint auxiliary tools, belong to pipeline butt joint technical field, comprising: two arc hoop plates, detachably installed in the outer wall of one of pipeline, slidingly set movable arc plate on arc hoop plate;Impact end plate, set in one end of movable arc plate, the inner diameter of impact end plate is greater than the inner diameter of arc hoop plate;Connecting assembly, is located on movable arc plate;Knocking plate, set in the outer wall of movable arc plate;The present scheme is different from the mode that current hammer directly hammers electric melting sleeve, can significantly reduce the damage caused to electric melting sleeve and its internal electric melting wire, and the contact area of impact end plate and electric melting sleeve end portion is large, and the impact force to electric melting sleeve is more uniform, not only can reduce the situation that electric melting sleeve concentrated stress causes damage, and uniform stress also can make that electric melting sleeve moves more smoothly, save more labor and time, butt joint efficiency has greater promotion, reduce construction cost.
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Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and more specifically, to a pipe connection auxiliary tool. Background Technology

[0002] PE pipe splicing typically refers to the process of connecting two sections of PE (polyethylene) pipe, and is widely used in water supply and drainage, gas transmission, and other fields. Using an electrofusion sleeve to splice two PE pipes is a simple and reliable connection method. The electrofusion sleeve has a resistance wire embedded inside, which heats up and melts the inner wall of the sleeve and the outer wall of the pipe together. After cooling, a solid whole is formed, thus achieving the splicing between the pipes.

[0003] When connecting pipes, first put the electrofusion sleeve on one section of PE pipe, then insert the other section of PE pipe into the electrofusion sleeve until the predetermined depth is reached. Then connect the electrofusion welding machine to the electrofusion sleeve. The resistance wire inside the electrofusion sleeve is energized and heated, causing the part of the sleeve and the pipe to melt and bond together.

[0004] However, during this process, when inserting another section of PE pipe into the electrofusion sleeve, the friction is relatively large because the outer wall of the PE pipe and the inner wall of the electrofusion sleeve need to be in close contact. This results in high resistance during the installation of the other section of PE pipe and the electrofusion sleeve. Usually, workers need to use a hammer to tap the electrofusion sleeve to gradually move it and fit it onto the other section of PE pipe. This is time-consuming, laborious, and results in uneven force. It can also damage the electrofusion sleeve itself and the electrofusion wire inside, affecting the normal use of the electrofusion sleeve and increasing costs.

[0005] Therefore, it is necessary to provide a pipe connection auxiliary tool to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide a pipe connection auxiliary tool to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A pipe connection aid tool, used to assist in connecting two pipes, includes:

[0009] Two arc-shaped clamps are detachably installed on the outer wall of one of the pipes, and a movable arc plate is slidably arranged on the arc-shaped clamps;

[0010] An impact end plate is disposed at one end of the movable arc plate, and the inner diameter of the impact end plate is larger than the inner diameter of the arc-shaped hoop plate;

[0011] A connecting component, disposed on the movable arc plate, is used to connect the movable arc plates on the two arc-shaped clamps;

[0012] A striking plate is provided on the outer wall of the movable arc plate.

[0013] Furthermore, the connection component includes:

[0014] Multiple connecting blocks are provided at the ends of the movable arc plate, and the connecting blocks are provided with connecting holes;

[0015] The two corresponding connecting blocks on the two movable arc plates are fixed together by the cooperation of connecting bolts and connecting holes.

[0016] Furthermore, the outer wall of the arc-shaped hoop is provided with multiple sliding grooves, and the inner wall of the sliding groove is provided with a slider connected to the movable arc plate.

[0017] Furthermore, a limiting rod is provided between the two side walls of the slide groove, and the limiting rod moves through the slider.

[0018] Furthermore, each end of the arc-shaped hoop is provided with a fixing block, and the fixing block is provided with a fixing hole. The two corresponding fixing blocks on the two arc-shaped hoops are connected and fixed by fixing bolts.

[0019] Furthermore, both ends of the movable arc plate are provided with clearance grooves, and the clearance grooves are located between two adjacent connecting blocks.

[0020] Furthermore, the striking plate has multiple through holes, and the outer wall of the striking plate is also provided with multiple handles.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This solution involves first fitting the electrofusion sleeve onto one section of pipe, then installing this auxiliary tool onto the same pipe. This involves placing two arc-shaped clamps onto the pipe and connecting the two movable arc plates together using a connecting assembly. After inserting the other section of pipe into the port of the electrofusion sleeve, a hammer is used to evenly and repeatedly strike the striking plate towards the electrofusion sleeve. The striking plate, through the movable arc plates, drives the impact end plate to strike the electrofusion sleeve, ultimately positioning it at the predetermined position on the pipe. This method avoids the current method of directly hammering the electrofusion sleeve, significantly reducing damage to the sleeve and its internal electrofusion wire. Furthermore, the large contact area between the impact end plate and the end of the electrofusion sleeve results in a more even impact force, reducing concentrated stress and damage. The even force also allows for smoother movement of the electrofusion sleeve, saving labor and time, significantly improving docking efficiency, reducing construction costs, and demonstrating high practicality. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the auxiliary tool of this utility model in use.

[0024] Figure 2 for Figure 1 A schematic diagram of the structure from the other side;

[0025] Figure 3 This is a schematic diagram of the overall structure of the auxiliary tool of this utility model;

[0026] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0028] Figure 6 This is a schematic diagram of the structure of each component on one side of the arc-shaped hoop plate of this utility model;

[0029] Figure 7 for Figure 6 Enlarged structural diagram at point C.

[0030] Explanation of the labels in the diagram:

[0031] 1. Arc-shaped hoop plate; 2. Movable arc plate; 3. Impact end plate; 4. Connecting assembly; 41. Connecting block; 42. Connecting hole; 43. Connecting bolt; 5. Striking plate; 6. Slide groove; 7. Sliding block; 8. Limiting rod; 9. Fixing block; 10. Fixing hole; 11. Fixing bolt; 12. Clearance groove; 13. Through hole; 14. Handle; 15. Pipe; 16. Electrofusion sleeve. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-7 A pipe-connection auxiliary tool for assisting in the connection of two pipes 15, wherein the two pipes 15 are connected by an electrofusion sleeve 16, comprising:

[0034] Two arc-shaped clamps 1 are detachably installed on the outer wall of one of the pipes 15, and a movable arc plate 2 is slidably set on the arc-shaped clamps 1;

[0035] The impact end plate 3 is located at one end of the movable arc plate 2, and the inner diameter of the impact end plate 3 is larger than the inner diameter of the arc-shaped hoop plate 1.

[0036] The connecting component 4 is located on the movable arc plate 2 and is used to connect the movable arc plates 2 on the two arc-shaped clamp plates 1.

[0037] The striking plate 5 is located on the outer wall of the movable arc plate 2.

[0038] In use, first, the pipe 15 is lifted using hoisting equipment, ensuring the two sections of pipe 15 are at different heights to create a misalignment. Then, the electrofusion sleeve 16 is fitted onto one section of pipe 15, and the auxiliary tool is installed onto this section, positioned to one side of the electrofusion sleeve 16. Specifically, two arc-shaped clamps 1 are fitted onto the corresponding positions on the outside of the pipe 15 and connected and fixed, allowing the movable arc plate 2 to move sufficiently towards the electrofusion sleeve 16. Then, the movable arc plates 2 on the two arc-shaped clamps 1 are connected together using the connecting assembly 4, enabling the two movable arc plates 2 to move synchronously.

[0039] After hoisting another section of pipe 15 to be level with the pipe 15 containing the electrofusion sleeve 16, insert the other section of pipe 15 into the port of the electrofusion sleeve 16. Then, use a hammer to strike the striking plate 5 evenly and repeatedly in the direction of the electrofusion sleeve 16. After the striking plate 5 is hit, it will drive the two movable arc plates 2 to slide synchronously along the arc-shaped hoop plate 1. The movable arc plates 2 will drive the impact end plate 3 to move in the direction of the electrofusion sleeve 16. Finally, the impact end plate 3 will strike one end of the electrofusion sleeve 16, so that the electrofusion sleeve 16 can gradually move towards the pipe 15 that is inserted later. The impact end plate 3 will make the electrofusion sleeve 16 reach the predetermined position on the pipe 15.

[0040] In summary, by using a hammer to strike the impact plate 5, causing the two impact end plates 3 to impact and move the electrofusion sleeve 16, the current method of directly hammering the electrofusion sleeve 16 can be avoided, significantly reducing damage to the electrofusion sleeve 16 and its internal electrofusion wire. Furthermore, the large contact area between the impact end plate 3 and the end of the electrofusion sleeve 16 ensures more comprehensive contact, resulting in a more uniform impact force on the electrofusion sleeve 16 through the impact end plate 3. This not only reduces the damage caused by concentrated force on the electrofusion sleeve 16, but also allows the electrofusion sleeve 16 to move more smoothly through uniform force distribution. It also saves more labor and time, significantly improves docking efficiency, effectively ensures the normal use of the electrofusion sleeve 16, reduces construction costs, and has high practicality.

[0041] After moving the electrofusion sleeve 16 to the predetermined position, disconnect the connection assembly 4 from the two movable arc plates 2, and then remove the two arc-shaped clamps 1 from the pipe 15. Then, heat the electrofusion sleeve 16 by connecting it to the electrofusion welding machine to complete the connection of the two pipe sections 15.

[0042] For preferred options, please refer to [link / reference]. Figures 1-4 and Figures 6-7 The connecting component 4 includes:

[0043] Multiple connecting blocks 41 are provided at the ends of the movable arc plate 2, and connecting holes 42 are provided on the connecting blocks 41;

[0044] The two corresponding connecting blocks 41 on the two movable arc plates 2 are fixed together by the cooperation of connecting bolts 43 and connecting holes 42.

[0045] Specifically, after the two arc-shaped clamps 1 are installed on the pipe 15, the connecting bolts 43 are then inserted into the connecting holes 42 on the two connecting blocks 41 at the corresponding positions on the two movable arc plates 2, and fixed with nuts, thereby connecting the two movable arc plates 2 to each other.

[0046] For preferred options, please refer to [link / reference]. Figures 1-3 and Figures 5-7 The outer wall of the arc-shaped hoop plate 1 is provided with multiple sliding grooves 6, and the inner wall of the sliding grooves 6 is provided with sliders 7 connected to the movable arc plate 2.

[0047] With this design, when the movable arc plate 2 slides along the arc-shaped hoop 1, the movable arc plate 2 will drive the slider 7 to slide along the slide groove 6. By having multiple sliders 7 move with the movable arc plate 2 at the same time, the stability and synchronicity of the movable arc plate 2 sliding along the arc-shaped hoop 1 can be improved, that is, the force of the impact caused by the movable arc plate 2 driving the impact end plate 3 to move is more evenly distributed.

[0048] For preferred options, please refer to [link / reference]. Figures 2-4 A limit rod 8 is provided between the two side walls of the slide 6, and the limit rod 8 moves through the slider 7.

[0049] For preferred options, please refer to [link / reference]. Figures 1-4 and Figures 6-7 Both ends of the arc-shaped hoop 1 are provided with fixing blocks 9, and fixing holes 10 are provided on the fixing blocks 9. The two corresponding fixing blocks 9 on the two arc-shaped hoop 1 are connected and fixed by fixing bolts 11.

[0050] With this design, after fitting the two arc-shaped clamps 1 onto the pipe 15 and aligning the fixing blocks 9 of the two arc-shaped clamps 1, the fixing bolts 11 are passed through the fixing holes 10 of the corresponding fixing blocks 9 and secured with nuts, thus fixing the two arc-shaped clamps 1 onto the pipe 15. Disassembly is similar; after unscrewing the nuts, the fixing bolts 11 are pulled out of the fixing holes 10 of the fixing blocks 9, allowing the arc-shaped clamps 1 to be removed from the pipe 15.

[0051] For preferred options, please refer to [link / reference]. Figures 1-4 and Figure 6 Both ends of the movable arc plate 2 are provided with clearance grooves 12, which are located between two adjacent connecting blocks 41.

[0052] This design, through the design of the avoidance groove 12, can avoid the fixed block 9 on the arc-shaped hoop 1 when the movable arc plate 2 moves, preventing interference with the movement of the movable arc plate 2 and ensuring the smooth movement of the movable arc plate 2.

[0053] For preferred options, please refer to [link / reference]. Figures 1-3 and Figure 6 The striking plate 5 has multiple through holes 13, and the outer wall of the striking plate 5 is also provided with multiple handles 14. The through holes 13 on the striking plate 5 can be used for weight reduction and hoisting when necessary, and the handles 14 make it easy to lift and move this auxiliary tool.

[0054] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0055] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0056] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A pipe docking auxiliary tool for assisting in docking two pipes (15), characterized in that, include: Two arc-shaped clamps (1) are detachably installed on the outer wall of one of the pipes (15), and a movable arc plate (2) is slidably arranged on the arc-shaped clamp (1); An impact end plate (3) is disposed at one end of the movable arc plate (2), and the inner diameter of the impact end plate (3) is larger than the inner diameter of the arc-shaped hoop plate (1); A connecting component (4) is provided on the movable arc plate (2) for connecting the movable arc plates (2) on the two arc-shaped hoop plates (1); A striking plate (5) is disposed on the outer wall of the movable arc plate (2).

2. The pipe docking auxiliary tool according to claim 1, characterized in that, The connection component (4) includes: Multiple connecting blocks (41) are provided at the ends of the movable arc plate (2), and connecting holes (42) are provided on the connecting blocks (41); The two corresponding connecting blocks (41) on the two movable arc plates (2) are fixed together by the cooperation of connecting bolts (43) and connecting holes (42).

3. The pipe docking auxiliary tool according to claim 2, characterized in that, The outer wall of the arc-shaped hoop (1) is provided with multiple sliding grooves (6), and the inner wall of the sliding groove (6) is provided with a slider (7) connected to the movable arc plate (2).

4. The pipe docking auxiliary tool according to claim 3, characterized in that, A limiting rod (8) is provided between the two side walls of the slide (6), and the limiting rod (8) moves through the slider (7).

5. A pipe docking auxiliary tool according to claim 1, characterized in that, Both ends of the arc-shaped hoop (1) are provided with fixing blocks (9), and fixing holes (10) are provided on the fixing blocks (9). The two corresponding fixing blocks (9) on the two arc-shaped hoop (1) are connected and fixed by fixing bolts (11).

6. A pipe docking auxiliary tool according to claim 2, characterized in that, Both ends of the movable arc plate (2) are provided with clearance grooves (12), and the clearance grooves (12) are between two adjacent connecting blocks (41).

7. The pipe docking auxiliary tool according to claim 1, characterized in that, The striking plate (5) has multiple through holes (13), and the outer wall of the striking plate (5) is also provided with multiple handles (14).