Quick butt joint for pipeline of secondary water supply equipment
By designing anti-loosening components, the system buffers pipeline vibration and limits interface displacement, thus solving the problem of high-pressure water hammer during pump start-up and shutdown and ensuring the connection reliability and safety of secondary water supply equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI RENMIN ENTERPRISE GRP WATER PUMP
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-07
AI Technical Summary
The existing quick-connect couplings in secondary water supply equipment pipelines are prone to loosening due to the instantaneous high-pressure water hammer impact when the water pump starts and stops, affecting the reliability of the connection and potentially causing leakage and safety risks.
Anti-loosening components are used, including connection components and anti-loosening components, to prevent loosening and leakage of the interface by buffering pipeline vibration, limiting relative displacement and absorbing impact force, combined with the rigid connection of the disc spring and metal sleeve.
It effectively prevents loosening and leakage of interfaces, ensures the stability and safety of the water supply system, and reduces the risk of damage to the surrounding environment of the equipment.
Smart Images
Figure CN224469882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of quick-connect pipe fittings, specifically a quick-connect pipe fitting for a secondary water supply equipment. Background Technology
[0002] Quick-connect couplings for secondary water supply systems are high-efficiency connection devices specifically designed for such systems. They enable rapid installation, disassembly, and sealing of pipeline components, while adapting to fluctuations in water pressure, vibration, and environmental changes. Their core function is to ensure the stability, safety, and operational efficiency of the water supply system, making them particularly important in high-rise buildings, post-disaster reconstruction, and emergency water supply scenarios.
[0003] The instantaneous high-pressure water hammer generated in the pipeline when the existing water pump starts and stops will repeatedly impact the joint clamp and the pipeline mating surface. Under long-term repeated impact, the bolts or clips of the clamp are prone to gradually loosening, affecting the reliability of the connection between the joint and the pipeline, and creating hidden dangers of detachment or leakage for subsequent pipeline operation. This may eventually lead to leakage at the joint, which not only affects the water supply efficiency, but may also cause damage to the surrounding environment of the equipment or electrical safety risks due to leakage. To address this, we propose a quick-connect joint for secondary water supply equipment pipelines. Summary of the Invention
[0004] The purpose of this utility model is to provide a quick-connect coupling for secondary water supply equipment pipelines to solve the problem mentioned in the background art: the instantaneous high-pressure water hammer generated in the pipeline during the start-up and shutdown of the existing water pump will repeatedly impact the joint clamp and the pipeline mating surface. Under long-term repeated impact, the bolts or clips of the clamp are prone to gradually loosening, affecting the reliability of the connection between the joint and the pipeline, and creating hidden dangers of detachment or leakage for subsequent pipeline operation. Ultimately, leakage at the joint may occur, which not only affects the water supply efficiency, but may also cause damage to the surrounding environment of the equipment or electrical safety risks due to leakage.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect coupling for a secondary water supply equipment pipeline, including a coupling, a water pipe at one end of the coupling, a limiting bracket fixedly installed on the outside of the water pipe and the coupling, an anti-loosening component on the outside of the water pipe and the coupling, and a connecting component on the outside of the anti-loosening component. The connecting component buffers the vibration of the pipeline during operation to prevent the interface between the water pipe and the coupling from loosening and leaking due to vibration. The anti-loosening component restricts the relative displacement of the water pipe and the coupling to prevent the interface connection from loosening due to long-term use or vibration.
[0006] The connecting components include an upper pipe clamp, which is set outside the water pipe and the connector. A lower pipe clamp is set at the bottom of the upper pipe clamp. Metal sleeves are fixedly installed inside both the lower and upper pipe clamps. Bolts are threadedly connected to the metal sleeves through threaded holes inside them.
[0007] The bottom of the non-threaded area of the bolt is equipped with a butterfly spring. The bottom of the butterfly spring contacts the upper half of the pipe clamp. The external thread of the bolt has two nuts. The lower half of the pipe clamp and the upper half of the pipe clamp are joined together by the bolt. The water pipe and the connector are spliced and fixed by the joined lower half of the pipe clamp and the upper half of the pipe clamp.
[0008] The anti-loosening component includes a shock-absorbing pad, which is fixedly installed on the inner wall of the lower half of the pipe clamp. A lower half of the metal frame is fixedly installed on the inner wall of the shock-absorbing pad. A sealing gasket is fixedly installed on the inner wall of the lower half of the metal frame. A ball spring pin is installed inside the sealing gasket. A buckle is fixedly installed on the top of the lower half of the metal frame.
[0009] The lower metal frame is symmetrically arranged with an upper metal frame about the transverse central axis of the merged lower and upper pipe clamps. The upper metal frame is connected by a slot and a buckle at its bottom. There are two sealing gaskets, shock-absorbing pads and ball spring pins, each symmetrically arranged about the transverse central axis of the merged lower and upper pipe clamps.
[0010] The sealing gasket is slidably connected to the limiting frame through a sliding groove inside it. The limiting frame is slidably connected to the ball spring pin through a sliding hole inside it. The sealing gasket is in contact with the outside of the water pipe and the joint. Drainage outlets are provided inside both the lower half of the metal frame and the lower half of the pipe clamp. The drainage outlets of the lower half of the metal frame and the lower half of the pipe clamp are connected.
[0011] This utility model has at least the following beneficial effects:
[0012] The anti-loosening component uses a ball spring pin to engage with the sliding hole of the limit bracket and snap-fit to limit the relative displacement of the component with the water pipe and connector to prevent loosening. It uses a shock-absorbing pad to absorb the impact of vibration to achieve initial shock absorption. It can also drain water seepage from the water pipe and connector interface through the drain outlet connected to the lower half of the metal frame and the lower half of the pipe clamp, preventing water accumulation from affecting the components. The connecting component uses the elastic deformation of the butterfly spring caused by the change of vibration pressure to absorb the impact of vibration and prevent the impact force from being transmitted to the water pipe and connector interface to prevent vibration. The rigid connection between the upper half of the pipe clamp, the lower half of the pipe clamp and the metal sleeve, bolts and nuts strengthens the fixation of the anti-loosening component and indirectly ensures the stability of the water pipe and connector interface. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of this utility model;
[0015] Figure 3 This is an exploded three-dimensional structural diagram of the connecting component of this utility model;
[0016] Figure 4 This is a three-dimensional structural diagram of the anti-loosening component of this utility model.
[0017] Figure 5 This is a three-dimensional structural diagram of the connecting component of this utility model.
[0018] In the diagram: 1. Connector; 2. Connecting assembly; 21. Upper pipe clamp; 22. Lower pipe clamp; 23. Bolt; 24. Butterfly spring; 25. Metal sleeve; 26. Nut; 3. Anti-loosening assembly; 31. Upper metal frame; 32. Sealing gasket; 33. Lower metal frame; 34. Shock-absorbing pad; 35. Ball spring pin; 36. Drain outlet; 37. Clip; 4. Water pipe; 5. Limiting bracket. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1 to 5 This utility model provides a technical solution: a quick-connect connector for a secondary water supply equipment pipeline, including a connector 1, a water pipe 4 at one end of the connector 1, a limiting bracket 5 fixedly installed on the outside of the water pipe 4 and the connector 1, an anti-loosening component 3 on the outside of the water pipe 4 and the connector 1, and a connecting component 2 on the outside of the anti-loosening component 3. The connecting component 2 absorbs the vibration of the pipeline during operation to prevent the interface between the water pipe 4 and the connector 1 from loosening and leaking due to vibration. The anti-loosening component 3 restricts the relative displacement of the water pipe 4 and the connector 1 to prevent the interface connection from loosening due to long-term use or vibration.
[0021] The connecting assembly 2 includes an upper pipe clamp 21, which is located outside the water pipe 4 and the connector 1. A lower pipe clamp 22 is located at the bottom of the upper pipe clamp 21. Metal sleeves 25 are fixedly installed inside both the lower pipe clamp 22 and the upper pipe clamp 21. Bolts 23 are threadedly connected to the metal sleeves 25 through threaded holes inside them. A butterfly spring 24 is located at the bottom of the non-threaded area of the bolt 23, and the bottom of the butterfly spring 24 contacts the upper pipe clamp 21. Two nuts 26 are threadedly connected to the external threads of the bolt 23. The lower pipe clamp 22 and the upper pipe clamp 21... By merging with bolt 23, the water pipe 4 and the connector 1 are spliced and fixed by the merged lower half clamp 22 and the upper half clamp 21. The upper half clamp 21 and the lower half clamp 22 are placed on the upper and lower sides of the anti-loosening component 3 and wrapped around the component. The bolt 23 is passed through the metal sleeve 25 inside the lower half clamp 22 and the upper half clamp 21 in sequence. A butterfly spring 24 is installed at the bottom of the non-threaded area of the bolt 23. Then, two nuts 26 are screwed on the bolt 23 to merge and fix the upper half clamp 21 and the lower half clamp 22, thereby fixing the anti-loosening component 3 and the water pipe 4 and connector 1 inside.
[0022] The anti-loosening component 3 includes a shock-absorbing pad 34, which is fixedly installed on the inner wall of the lower half-pipe clamp 22. A lower half-metal frame 33 is fixedly installed on the inner wall of the shock-absorbing pad 34, and a sealing gasket 32 is fixedly installed on the inner wall of the lower half-metal frame 33. A ball spring pin 35 is provided inside the sealing gasket 32. A buckle 37 is fixedly installed on the top of the lower half-metal frame 33. The upper half-metal frame 31 is symmetrically arranged about the transverse central axis of symmetry between the merged lower half-pipe clamp 22 and the upper half-pipe clamp 21. The upper half-metal frame 31 is engaged with the buckle 37 through a slot provided at its bottom. There are two sealing gaskets 32, shock-absorbing pads 34, and ball spring pins 35, each symmetrically arranged about the transverse central axis of symmetry between the merged lower half-pipe clamp 22 and the upper half-pipe clamp 21. The sealing gasket 32 is secured by its inner... The sliding groove of the upper half is slidably connected to the limiting frame 5. The limiting frame 5 is slidably connected to the ball spring pin 35 through the sliding hole inside it. The sealing gasket 32 is in contact with the outside of the water pipe 4 and the connector 1. The lower half metal frame 33 and the lower half pipe clamp 22 are both provided with drain outlets 36. The drain outlets 36 of the lower half metal frame 33 and the lower half pipe clamp 22 are connected. First, the shock-absorbing pad 34 of the lower half metal frame 33 is fixed to the inner wall of the lower half pipe clamp 22. Then, the sealing gasket 32 is installed on the inner wall of the lower half metal frame 33 and contacts the water pipe 4 and the connector 1. Then, the ball spring pin 35 is embedded into the sealing gasket 32 and passes through the sliding hole of the limiting frame 5. Next, the upper half metal frame 31 is snapped into place with the buckle 37 through the slot. At the same time, the upper half sealing gasket 32 and the ball spring pin 35 respectively contact the water pipe 4 and pass through the sliding hole of the limiting frame 5.
[0023] The connecting component 2 is installed on the outside of the anti-loosening component 3. The assembly steps are as follows: place the upper half-clamp 21 on the upper side of the anti-loosening component 3 and the lower half-clamp 22 on the lower side of the anti-loosening component 3, so that the upper half-clamp 21 and lower half-clamp 22 completely enclose the anti-loosening component 3. Since both the upper half-clamp 21 and lower half-clamp 22 have metal sleeves 25 fixedly installed inside, and the metal sleeves 25 have threaded holes, the bolt 23 is passed through the threaded hole of the metal sleeve 25 of the lower half-clamp 22, and then through the threaded hole of the metal sleeve 25 of the upper half-clamp 21. A butterfly spring 24 is fitted at the bottom of the non-threaded area of the bolt 23, so that the bottom of the butterfly spring 24 contacts the upper surface of the upper half-clamp 21. Finally, two nuts 26 are threadedly connected to the outside of the bolt 23, and the bolt is tightened. The nut 26 tightly merges the upper half of the pipe clamp 21 and the lower half of the pipe clamp 22, completing the wrapping and fixing of the anti-loosening component 3 and the internal water pipe 4 and connector 1. When the pipeline vibrates during operation, the vibration is transmitted to the upper half of the pipe clamp 21 and the lower half of the pipe clamp 22 of the connecting component 2. At this time, the butterfly spring 24 will undergo elastic deformation due to the pressure change caused by the vibration. The impact force generated by the vibration will be absorbed by the deformation of the butterfly spring 24, preventing the impact force from being directly transmitted to the interface between the water pipe 4 and the connector 1, thereby preventing the interface from loosening and leaking due to vibration. At the same time, the merged upper half of the pipe clamp 21 and the lower half of the pipe clamp 22 are rigidly fixed by the metal sleeve 25, bolt 23 and nut 26, further strengthening the splicing stability of the water pipe 4 and the connector 1, ensuring that the interface always remains in a tight connection state.
[0024] The anti-loosening component 3 is installed on the outside of the water pipe 4 and the connector 1. The assembly process is as follows: First, the shock-absorbing pad 34 on the inner wall of the lower half metal frame 33 is fixedly installed to the inner wall of the lower half pipe clamp 22, ensuring that the shock-absorbing pad 34 is tightly fitted to the inner wall of the lower half pipe clamp 22. Next, the sealing gasket 32 is fixedly installed on the inner wall of the lower half metal frame 33, so that the sealing gasket 32 directly contacts the outer surface of the water pipe 4 and the connector 1, achieving initial sealing. Then, the ball spring pin 35 is embedded into the pre-set mounting hole inside the sealing gasket 32, ensuring that one end of the ball spring pin 35 can pass through the sliding hole opened inside the limit frame 5, forming a sliding connection with the limit frame 5. Since the lower half metal frame 33 is symmetrically arranged with the upper half metal frame 31 about the transverse central axis of symmetry of the merged lower half pipe clamp 22 and the upper half pipe clamp 21, the slot at the bottom of the upper half metal frame 31 is aligned with the buckle 37 at the top of the lower half metal frame 33. The upper half of the metal frame 31 and the lower half of the metal frame 33 are spliced and fixed by snap-fit. During this process, two sealing gaskets 32, shock-absorbing pads 34 and ball spring pins 35 are respectively provided. The sealing gasket 32 on the upper half is also in contact with the outside of the water pipe 4 and the connector 1. The ball spring pin 35 on the upper half is also slidably connected to the sliding hole of the limit frame 5. Through the sliding cooperation between the ball spring pin 35 and the sliding hole of the limit frame 5, and the snap-fit fixation of the upper half of the metal frame 31 and the lower half of the metal frame 33 by snap-fit 37, the relative displacement between the anti-loosening component 3 and the water pipe 4 and the connector 1 can be limited. Even if long-term use or pipeline operation generates vibration, the ball spring pin 35 can slightly buffer the displacement in the sliding hole, and at the same time prevent the interface between the water pipe 4 and the connector 1 from loosening laterally or longitudinally, avoiding interface connection failure. In addition, the shock-absorbing pads 34 can initially absorb the impact force generated by pipeline vibration and reduce the impact of vibration on the interface connection.
[0025] Both the lower metal frame 33 and the lower pipe clamp 22 have drainage ports 36 inside, and the drainage ports 36 of the two are interconnected. If a small amount of water seeps into the interface between the water pipe 4 and the connector 1 due to special circumstances, the seepage water will penetrate into the lower metal frame 33 through the gap of the sealing gasket 32, and then flow into the drainage port 36 of the lower metal frame 33 through the drainage port 36 of the lower pipe clamp 22, and finally be discharged outside the connector 1. This prevents water from accumulating inside the connector 1, preventing water accumulation from corroding components or affecting the sealing and stability of the interface connection, and further ensuring the long-term reliable operation of the connector 1.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-connect coupling for a secondary water supply system pipeline, comprising a coupling, characterized in that: A water pipe is provided at one end of the connector. A limiting bracket is fixedly installed on the outside of the water pipe and the connector. An anti-loosening component is provided on the outside of the water pipe and the connector. A connecting component is provided on the outside of the anti-loosening component. The connecting component reduces the vibration of the pipeline during operation. The anti-loosening component restricts the relative displacement of the water pipe and the connector.
2. The quick-connect coupling for secondary water supply equipment pipelines according to claim 1, characterized in that: The connecting assembly includes an upper pipe clamp, which is disposed outside the water pipe and the connector. A lower pipe clamp is disposed at the bottom of the upper pipe clamp. Metal sleeves are fixedly installed inside both the lower pipe clamp and the upper pipe clamp. Bolts are threadedly connected to the metal sleeves through threaded holes provided inside them.
3. The quick-connect coupling for secondary water supply equipment pipelines according to claim 2, characterized in that: A butterfly spring is provided at the bottom of the non-threaded area of the bolt. The bottom of the butterfly spring contacts the upper half of the pipe clamp. Two nuts are connected to the external thread of the bolt. The lower half of the pipe clamp and the upper half of the pipe clamp are joined together by the bolt. The water pipe and the connector are spliced and fixed by the joined lower half of the pipe clamp and the upper half of the pipe clamp.
4. The quick-connect coupling for secondary water supply equipment pipelines according to claim 3, characterized in that: The anti-loosening component includes a shock-absorbing pad, which is fixedly installed on the inner wall of the lower half of the pipe clamp. A lower half of the metal frame is fixedly installed on the inner wall of the shock-absorbing pad. A sealing gasket is fixedly installed on the inner wall of the lower half of the metal frame. A ball spring pin is provided inside the sealing gasket. A buckle is fixedly installed on the top of the lower half of the metal frame.
5. The quick-connect coupling for secondary water supply equipment pipelines according to claim 4, characterized in that: The lower half of the metal frame is symmetrically arranged with respect to the transverse central axis of the merged lower half of the pipe clamp and the upper half of the pipe clamp. The upper half of the metal frame is engaged with the slot and buckle provided at its bottom. The sealing gasket, the shock-absorbing pad and the ball spring pin are all arranged in two symmetrical positions with respect to the transverse central axis of the merged lower half of the pipe clamp and the upper half of the pipe clamp.
6. The quick-connect coupling for secondary water supply equipment pipelines according to claim 5, characterized in that: The sealing gasket is slidably connected to the limiting frame through a sliding groove inside it. The limiting frame is slidably connected to the ball spring pin through a sliding hole inside it. The sealing gasket is in contact with the outside of the water pipe and the connector. The lower half of the metal frame and the lower half of the pipe clamp are both provided with drain outlets inside, and the drain outlets of the lower half of the metal frame and the lower half of the pipe clamp are connected.