Magnetic suction quick release device for pipeline
By combining magnetic suction units and wedge-shaped snap-fit structures, the problems of low disassembly and assembly efficiency and unreliable sealing in traditional pipe connection devices are solved, achieving rapid positioning, automatic locking and multiple sealing, which is suitable for high-pressure fluid environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIONG COUNTY JIANHUA PLASTIC PROD CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional pipe connection devices are inefficient and unreliable in terms of sealing during disassembly and assembly, and are prone to leakage, especially in high-pressure fluid environments. Existing quick-release structures have low positioning accuracy and insufficient sealing performance.
It adopts a magnetic suction unit to achieve rapid positioning, combined with a wedge-shaped snap-fit structure for automatic locking, and uses a rubber sealing sheet to improve sealing performance. The modular design facilitates maintenance.
It enables rapid pipe alignment and automatic locking, improving connection reliability and sealing, making it suitable for high-pressure environments and reducing maintenance costs.
Smart Images

Figure CN224120851U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluid transport pipeline connection technology, and in particular to a magnetic quick-release device for pipelines. Background Technology
[0002] In industrial piping systems, the efficiency of pipe connection assembly / disassembly and the reliability of sealing are key technical issues. Traditional flange connections require bolt tightening, which is cumbersome to install and time-consuming to disassemble, and the bolts are prone to corrosion, making disassembly difficult. Existing quick-release structures mostly use snap-fit or threaded connections, but they generally suffer from low positioning accuracy and insufficient sealing performance, especially prone to leakage in high-pressure fluid environments. Therefore, there is an urgent need for a pipe connection device that combines rapid positioning, automatic locking, and reliable sealing functions. Utility Model Content
[0003] The purpose of this invention is to provide a magnetic quick-release device for pipes, which achieves rapid positioning through a magnetic unit, automatically locks with a wedge-shaped snap-fit structure, and improves leak-proof performance through a sealing component, thus solving the problems of inefficient disassembly and assembly and unreliable sealing in traditional connection methods.
[0004] To achieve the above objectives, this utility model provides a magnetic quick-release device for pipes, including a first pipe and a second pipe. A first connecting component is provided at the opening of the first pipe near the second pipe. The first connecting component includes a magnetic unit and a fixing unit. A second connecting component is provided at the opening of the second pipe near the first pipe.
[0005] Preferably, the magnetic suction unit includes a first base with an annular structure, one side surface of the first base is fixedly connected to the opening of the first pipe, the other side surface of the first base is provided with an annular magnetic suction groove, and the fixing unit is provided at the end of the first base where the magnetic suction groove is provided.
[0006] Preferably, the fixing unit includes a plurality of fan-shaped fixing members, which are evenly distributed in a circular shape on the surface of the first base near the second pipe. The fan-shaped fixing members are connected to the first base by a hinge and can rotate relative to the first base. The fan-shaped fixing members have an annular snap-fit groove in the middle of their inner wall and a rubber sealing sheet on the inner wall of the end of the fan-shaped fixing members near the second pipe.
[0007] Preferably, the second connecting component includes a second base, which is fixedly connected to the opening of the second pipe near the first pipe. The second base has a magnetic ring on one side surface near the first pipe that corresponds to the magnetic groove, and an annular protrusion on the outer surface of the second base that corresponds to the snap-fit groove on the inner wall of the fixing member.
[0008] Preferably, both the card slot and the protrusion have a wedge-shaped cross-section.
[0009] Preferably, the second base has the same structure as the first base, both being annular structures, with the inner radius of the first base being larger than the outer radius of the second base.
[0010] Therefore, the present invention employs the above-mentioned magnetic quick-release device for pipes, which has the following technical effects:
[0011] (1) High efficiency of magnetic positioning: Through the magnetic force of the magnetic ring and the magnetic groove, the pipeline can be quickly aligned, reducing the time for manual alignment;
[0012] (2) Wedge-shaped self-locking: The wedge structure uses mechanical force to achieve automatic closing and locking, without the need for additional tools, and the connection is highly reliable;
[0013] (3) Multiple sealing to prevent leakage: The double sealing design of rubber sealing sheet and wedge snap-fit effectively prevents fluid leakage and is suitable for high pressure environment;
[0014] (4) Compact structure and easy maintenance: The modular design facilitates disassembly and maintenance, and the hinged fan-shaped parts can be replaced individually, reducing maintenance costs.
[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a magnetic quick-release device for pipes according to this utility model;
[0017] Figure 2 This is a side view of a magnetic quick-release device for pipes according to this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of a magnetic quick-release device for pipes after connection according to this utility model;
[0019] Figure 4 This is a perspective view of the magnetic quick-release device for pipes according to this utility model after connection.
[0020] Figure Labels
[0021] 1. First pipe; 2. Second pipe; 3. First connecting assembly; 31. Magnetic unit; 311. First base; 312. Magnetic groove; 32. Fixing unit; 321. Fan-shaped fixing piece; 322. Snap-fit groove; 323. Rubber sealing sheet; 4. Second connecting assembly; 41. Second base; 42. Magnetic ring; 43. Annular protrusion. Detailed Implementation
[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0024] like Figures 1 to 2 As shown, a magnetic quick-release device for pipes includes a first pipe 1 and a second pipe 2. The first pipe 1 is provided with a first connecting component 3 near the opening end of the second pipe 2. The first connecting component 3 includes a magnetic unit 31 and a fixing unit 32.
[0025] The magnetic unit 31 includes a first base 311 with an annular structure. The first base 311 is made of stainless steel. One side of the first base 311 is fixedly connected to the opening of the first pipe 1. The other side of the first base 311 is provided with an annular magnetic groove 312 for adsorption and positioning with the magnetic ring 42 of the second connecting component 4. A fixing unit 32 is provided at one end of the first base 311 where the magnetic groove 312 is provided.
[0026] The fixing unit 32 includes several fan-shaped fixing members 321. The fan-shaped fixing members 321 are evenly distributed in a circular shape on the surface of the first base 311 near the second pipe 2. The fan-shaped fixing members 321 are connected to the first base 311 by hinges. The fan-shaped fixing members 321 can rotate relative to the first base 311. The inner wall of the fan-shaped fixing member 321 is provided with an annular snap groove 322. The inner wall of the fan-shaped fixing member 321 near the second pipe 2 is provided with a rubber sealing sheet 323.
[0027] The second connecting component 4 includes a second base 41, which is made of the same material as the first base 311. The second base 41 is fixedly connected to the opening of the second pipe 2 near the first pipe 1. The side surface of the second base 41 near the first pipe 1 is provided with a magnetic ring 42 corresponding to the magnetic groove 312. The outer surface of the second base 41 is provided with an annular protrusion 43 corresponding to the snap-fit groove 322 on the inner wall of the fixing component.
[0028] Furthermore, the inner radius of the first base 311 is larger than the outer radius of the second base 41, forming a fitting space; the angle between the snap-fit groove 322 and the wedge-shaped section of the protrusion is 15°-30°, which facilitates automatic centering and locking.
[0029] Working principle:
[0030] like Figures 3 to 4 As shown, during the connection process: when not connected, the fan-shaped fixing part 321 is in an outward diverging state;
[0031] When the second pipe 2 approaches the first pipe 1, the magnetic ring 42 and the magnetic groove 312 are attracted by magnetic force to achieve rapid positioning;
[0032] As the two pipes approach each other, the wedge-shaped protrusion of the second base 41 gradually slides into the wedge-shaped locking groove 322 of the fan-shaped fixing member 321, and uses the wedge-shaped inclined surface to push the fan-shaped member to close inward around the hinge until it completely covers the outside of the second base 41.
[0033] The rubber sealing sheet 323 at the front end of the fan-shaped component is pressed against the surface of the second base 41 to form a sealing surface.
[0034] Disassembly process: An axial separation force is applied to overcome the magnetic attraction force. At the same time, the wedge-shaped protrusion and the inclined surface of the locking groove 322 cooperate to make the fan-shaped part automatically open outward, release the locking state, and achieve rapid separation.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A magnetic quick-release device for pipes, characterized in that: It includes a first pipe and a second pipe. The first pipe has a first connecting component at one end opening near the second pipe. The first connecting component includes a magnetic unit and a fixing unit. The second pipe has a second connecting component at one end opening near the first pipe.
2. The magnetic quick-release device for pipes according to claim 1, characterized in that: The magnetic suction unit includes a first base with an annular structure. One side surface of the first base is fixedly connected to the opening of the first pipe. The other side surface of the first base is provided with an annular magnetic suction groove. The fixing unit is provided at the end of the first base where the magnetic suction groove is located.
3. The magnetic quick-release device for pipes according to claim 2, characterized in that: The fixing unit includes several fan-shaped fixing members, which are evenly distributed in a circular shape on the surface of the first base near the second pipe. The fan-shaped fixing members are connected to the first base by hinges and can rotate relative to the first base. The fan-shaped fixing members have an annular snap-fit groove in the middle of their inner wall and a rubber sealing sheet on the inner wall of the end of the fan-shaped fixing members near the second pipe.
4. The magnetic quick-release device for pipes according to claim 3, characterized in that: The second connecting component includes a second base, which is fixedly connected to the opening of the second pipe near the first pipe. The second base has a magnetic ring on one side surface near the first pipe that corresponds to the magnetic groove, and an annular protrusion on the outer surface of the second base that corresponds to the snap-fit groove on the inner wall of the fixing member.
5. A magnetic quick-release device for pipes according to claim 4, characterized in that: Both the snap-fit groove and the protrusion have a wedge-shaped cross-section.
6. The magnetic quick-release device for pipes according to claim 5, characterized in that: The second base has the same structure as the first base, both being ring structures, with the inner radius of the first base being larger than the outer radius of the second base.