Pipeline quick repair joint

By using the drive shaft and transmission components of the quick-repair pipe joint, rapid and effective repair of plastic pipes is achieved, solving the problems of low efficiency and poor sealing performance in existing technologies, and realizing efficient pipe repair and sealing effects.

CN224516307UActive Publication Date: 2026-07-17ANHUI TONGJIA MACHINERY EQUIP MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI TONGJIA MACHINERY EQUIP MFG
Filing Date
2025-07-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing plastic pipe repair methods are inefficient and have poor sealing performance in emergency repair scenarios, making it impossible to quickly restore the pipe's water flow capacity. Furthermore, traditional flange connections are cumbersome to install and require a lot of labor.

Method used

The pipe quick repair joint uses a drive shaft to drive the transmission assembly to synchronously drive multiple sets of clamping parts, so that the pipe can be clamped on both sides in a single rotation operation. It uses the thread transmission principle and the radial movement of the insertion rod to provide uniform clamping force, ensuring sealing and structural integrity.

Benefits of technology

It significantly improves emergency repair efficiency, reduces manual labor intensity, enables rapid restoration of pipeline water flow capacity, and ensures uniform clamping force, avoiding pipeline deformation or local damage, and guaranteeing the sealing reliability of the repaired pipeline.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a quick-repair pipe joint, comprising: a connecting assembly including a fixed plate, a connecting pipe integrally formed on both sides of the fixed plate, and a drive shaft rotatably disposed within the fixed plate. The connecting pipe has an annular groove on the side away from the fixed plate for accommodating the pipe end. This utility model uses the drive shaft to drive a transmission assembly to synchronously drive multiple sets of clamping components, requiring only a single rotation to clamp both sides of the pipe, eliminating the need to tighten multiple bolts individually. This significantly improves repair efficiency and reduces manual labor intensity, making it particularly suitable for time-sensitive applications in on-site repair work. Simultaneously, the multiple clamping components are distributed circumferentially around the pipe, applying uniform pressure to the outer wall of the pipe. This reasonable force distribution effectively avoids pipe deformation or localized damage caused by uneven clamping force, thereby ensuring the structural integrity and sealing reliability of the repaired pipe.
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Description

Technical Field

[0001] This utility model relates to the field of pipe joint technology, and in particular to a quick-repair pipe joint. Background Technology

[0002] Plastic piping systems are widely used in municipal water supply and drainage, agricultural irrigation, and industrial fluid transportation due to their advantages such as lightweight, corrosion resistance, and easy installation. However, during long-term operation, plastic pipes often suffer damage such as cracks, holes, and even breaks due to external impacts, changes in ambient temperature, and material aging, which seriously affects the normal operation of the system.

[0003] Currently, the repair method for minor local damage to plastic pipes typically involves covering the damaged area with a sheet of the same material as the pipe, sealing it with adhesive, and then securing the repair sheet to the original pipe surface using clamps, wires, or ropes. While this method is simple and inexpensive, it suffers from poor sealing performance, low connection strength, and inability to withstand high pressure. It is only suitable for low-pressure situations with small damage areas. When plastic pipes experience significant damage or rupture, the traditional approach is to cut off the damaged section and reconnect the pipe using flanges. Although flange connections provide a relatively reliable seal, their installation process is cumbersome, requiring the tightening of multiple bolts one by one, resulting in high labor intensity and low efficiency, making it difficult to meet the need for rapid restoration of water flow in emergency repair scenarios. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] Pipeline quick-repair connectors include:

[0006] The connecting assembly includes a fixed plate, an integrally formed connecting pipe on both sides of the fixed plate, and a drive shaft rotatably disposed within the fixed plate. The connecting pipe has an annular groove on the side away from the fixed plate for accommodating the pipe end. Both ends of the drive shaft pass through the fixed plate and extend to the outside of the fixed plate. Rotating rods are rotatably inserted into the fixed plate on both sides of the drive shaft. A transmission assembly is provided between the rotating rods and the drive shaft. The drive shaft extending to the outside of the fixed plate and the rotating rods located outside the fixed plate are both provided with threaded sections. Clamping elements are provided on the threaded sections. The fixed plate has multiple sets of through holes for liquid flow.

[0007] The external force drives the drive shaft to rotate, which in turn drives the rotating rods on both sides to rotate synchronously via the transmission assembly. This causes the clamping members on both sides and located on the drive shaft to move radially, thereby applying a clamping force to the pipe placed in the annular groove.

[0008] As an improvement to the above technical solution, the clamping member includes a threaded sleeve threaded onto the threaded section and an insert rod fixedly disposed on both sides of the threaded sleeve, one end of the insert rod passing through the connecting pipe and extending into the annular groove.

[0009] As an improvement to the above technical solution, the insertion rod adopts an L-shaped structure, and a moving groove for the insertion rod to move is opened inside the connecting tube and on one side of the annular groove.

[0010] As an improvement to the above technical solution, the transmission assembly includes a driven wheel disposed at one end of the rotating rod located inside the fixed disk, and a driving wheel that meshes with the driven wheel is fixedly sleeved on the surface of the drive shaft.

[0011] The beneficial effects of this utility model are:

[0012] The drive shaft drives the transmission assembly to synchronously drive multiple sets of clamping parts. Only a single rotation operation is needed to clamp both sides of the pipe, eliminating the need to tighten multiple bolts one by one. This significantly improves repair efficiency and reduces manual labor intensity, making it particularly suitable for time-sensitive applications in on-site repair operations. At the same time, the multiple clamping parts are distributed around the circumference of the pipe, applying uniform pressure to the outer wall of the pipe. The force is reasonable and effectively avoids pipe deformation or local damage caused by uneven clamping force, thereby ensuring the structural integrity and sealing reliability of the repaired pipe. Attached Figure Description

[0013] Figure 1 This is a front view of the overall structure of this utility model;

[0014] Figure 2 This is a side view of the fixing plate of this utility model;

[0015] Figure 3 This is a side view of the overall structure of this utility model.

[0016] Reference numerals: 10, pipe; 20, connecting pipe; 201, annular groove; 21, drive shaft; 22, insert rod; 23, threaded sleeve; 24, threaded section; 25, fixed plate; 26, through hole; 27, driving wheel; 28, driven wheel; 29, rotating rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Pipeline quick-repair connectors include:

[0019] The connecting assembly includes a fixed plate 25, connecting pipes 20 integrally formed on both sides of the fixed plate 25, and a drive shaft 21 rotatably disposed within the fixed plate 25. The connecting pipes 20 have an annular groove 201 for accommodating the end of the pipe 10 on the side away from the fixed plate 25. Both ends of the drive shaft 21 pass through the fixed plate 25 and extend to the outside of the fixed plate 25. Rotating rods 29 are rotatably inserted into the fixed plate 25 on both sides of the drive shaft 21. A transmission assembly is provided between the rotating rods 29 and the drive shaft 21. The ends of the drive shaft 21 extending to the outside of the fixed plate 25 and the ends of the rotating rods 29 located outside the fixed plate 25 are provided with threaded sections 24. Clamping elements are provided on the threaded sections 24. The fixed plate 25 has multiple sets of through holes 26 for liquid flow.

[0020] The external force drives the drive shaft 21 to rotate, which in turn drives the rotating rods 29 on both sides to rotate synchronously via the transmission assembly. This causes the clamping members on both sides of the rods and located on the drive shaft 21 to move radially, thereby applying a clamping force to the pipe placed in the annular groove 201.

[0021] Specifically, one end of each of the two sets of pipes 10 to be repaired is inserted into the annular grooves 201 of the two sets of connecting pipes 20. The annular grooves 201 initially limit the ends of the pipes 10, ensuring that the axis of the pipes 10 is aligned with the center of the joint. When the drive shaft 21 is manually rotated, the internal transmission component functions, driving the rotating rods 29 located on both sides of the drive shaft 21 within the fixed plate 25 to rotate synchronously. The transmission component ensures that the drive shaft 21 and the rotating rods 29 rotate in the same direction and at the same speed, avoiding uneven force on the pipes due to uncoordinated movements on both sides. Both the drive shaft 21 and the rotating rod 29 have threaded sections 24 on their exposed ends, on which clamping parts are installed. When the drive shaft 21 and the rotating rod 29 rotate, based on the principle of threaded transmission, the clamping parts will move axially, which in turn will move toward the pipeline. Each set of clamping parts can apply uniform radial pressure to the outer wall of the pipeline in the two sets of annular grooves 201. The pressure makes the pipeline fit tightly against the inner wall of the annular groove. At the same time, the through hole 26 on the fixed plate 25 ensures that the liquid in the pipeline can pass through the fixed plate normally without affecting the pipeline's conveying function after emergency repair.

[0022] In one embodiment, the clamping element includes a threaded sleeve 23 threaded onto the threaded segment 24 and insert rods 22 fixedly disposed on both sides of the threaded sleeve 23. One end of the insert rod 22 passes through the connecting pipe 20 and extends into the annular groove 201. When the drive shaft 21 and the rotating rod 29 rotate, based on the thread transmission principle, the threaded sleeve 23 will move axially along the threaded segment 24, and the insert rod 22 will move synchronously. Since one end of the insert rod 22 passes through the connecting pipe 20 and extends into the annular groove 201, the axial movement of the threaded sleeve 23 will be converted into the radial movement of the insert rod 22 toward the pipe. As the threaded sleeve 23 gets closer to the fixed plate 25, the insert rod 22 gradually presses against the outer wall of the pipe. At the same time, multiple insert rods 22 press the pipe evenly from different directions, forming a circumferential clamping effect.

[0023] In one embodiment, the insertion rod 22 adopts an L-shaped structure, and a moving groove for the insertion rod 22 is provided inside the connecting pipe 20 and on one side of the annular groove 201. The moving groove restricts the direction of movement of the insertion rod and provides it with a moving track.

[0024] In one embodiment, the transmission assembly includes a driven wheel 28 disposed at one end of the rotating rod 29 located inside the fixed disk, and a driving wheel 27 that meshes with the driven wheel 28 is fixedly sleeved on the surface of the drive shaft 21. When the drive shaft 21 rotates, the driving wheel 27 rotates synchronously. The driving wheel 27 meshes with the driven wheel 28 through its teeth, transmitting power to the driven wheel 28, thereby driving the rotating rod 29 to rotate synchronously.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A rapid repair coupling for pipes, characterized in that, The utility model relates to a pipe connecting device, including: Connecting assembly, including fixed disc (25), integrally formed and arranged on both sides of the fixed disc (25) connecting pipe (20) and rotationally arranged in the fixed disc (25) drive shaft (21), the connecting pipe (20) is away from the side of fixed disc (25) and is opened with the annular groove (201) for accommodating the end of pipeline (10), both ends of the drive shaft (21) all penetrate fixed disc (25) and extend to the outside of fixed disc (25), the fixed disc (25) is in and is located on both sides of drive shaft (21) rotationally inserted with rotating rod (29), transmission assembly is arranged between rotating rod (29) and drive shaft (21), the drive shaft (21) extends to the outside of fixed disc (25) with the one end of rotating rod (29) located outside fixed disc (25) all are provided with threaded section (24), the threaded section (24) is provided with clamping piece, a plurality of sets of through holes (26) for liquid flow are seted up on the fixed disc (25), Wherein, external force drives the drive shaft (21) rotation, through the transmission assembly synchronous drive both sides rotating rod (29) rotation, further drive its both sides and the clamping piece on drive shaft (21) move along the radial direction to the pipeline that is placed in the annular groove (201) exert clamping force.

2. The pipe quick repair coupling of claim 1, wherein: The clamping piece includes threaded sleeve (23) that is screwed on threaded section (24) and insert rod (22) fixedly arranged on both sides of threaded sleeve (23), one end of insert rod (22) penetrates connecting pipe (20) and extends to the annular groove (201) in.

3. The pipe quick repair coupling of claim 2, wherein: The insert rod (22) adopts the structure of L word, and the connecting pipe (20) in and located on one side of the annular groove (201) is provided with the moving groove for the movement of the insert rod (22).

4. The pipe quick repair coupling of claim 1, wherein: The transmission assembly includes driven wheel (28) arranged on the one end of rotating rod (29) located inside the fixed disc, and the surface of drive shaft (21) and located in the fixed sleeve is engaged with the driving wheel (27) of the driven wheel (28) is suitable.