Integrated vertical check valve

By using the magnetic attraction connection between the metal adsorption ring and the annular permanent magnet, and the positioning and locking structure of the arc-shaped insert plate, the problems of cumbersome connection and poor sealing of traditional check valves are solved, achieving fast and stable connection and good sealing, adapting to complex working conditions, and improving installation efficiency and equipment stability.

CN223825838UActive Publication Date: 2026-01-23ZHEJIANG YINGQIANG COPPER TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520759043.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-01-23
Estimated Expiration
2035-04-22

AI Technical Summary

Technical Problem

Traditional check valves have cumbersome and unstable connection methods, resulting in low installation efficiency, poor sealing performance, and easy leakage under high pressure, high temperature, or strong corrosion conditions. Furthermore, the need for special parts for connections of different pipe diameters increases costs and management difficulty.

Method used

It adopts a magnetic connection method of metal adsorption ring and ring permanent magnet, combined with the positioning and locking structure of arc-shaped insert plate and spring, and equipped with double sealing gasket design to achieve quick connection, stability and sealing, and adapt to different working conditions.

Benefits of technology

It achieves a fast and stable connection, improves installation efficiency, ensures sealing performance, adapts to complex environments, and reduces operation difficulty and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integrated vertical check valve, which belongs to the technical field of check valves and comprises a vertical check valve body and a water pipe, one end of the water pipe is fixedly provided with a metal adsorption ring, two ends of the check valve body are provided with annular grooves matched with the metal adsorption ring, and the metal adsorption ring is fixedly arranged in the annular grooves. An annular permanent magnet matched with the metal adsorption ring is installed on the inner wall of the annular groove, positioning rings are symmetrically installed on the outer side of the check valve body in a sliding mode, arc-shaped grooves are symmetrically formed in the inner walls of the positioning rings, arc-shaped sliding plates are installed on the inner walls of the arc-shaped grooves, and a plurality of springs are fixedly installed between the arc-shaped sliding plates and the inner walls of the arc-shaped grooves. Arc-shaped inserting plates are fixedly installed on the inner walls of the arc-shaped sliding plates, arc-shaped inserting grooves matched with the arc-shaped inserting plates are symmetrically formed in the outer side of the water pipe, and the device is convenient to connect, good in sealing performance, stable, reliable, easy and convenient to operate and high in stability.
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Description

Technical Field

[0001] This utility model relates to the field of valve technology, and more specifically, to an integrated vertical check valve. Background Technology

[0002] Currently, integrated vertical check valves are key components in various fluid transport systems, ensuring unidirectional fluid flow. However, traditional check valve connection methods have several drawbacks. Flange connections require numerous bolts and nuts, making installation cumbersome, time-consuming, and difficult in confined spaces such as ship engine rooms and building shafts, resulting in extremely low installation efficiency. While threaded connections are relatively simple to operate, they suffer from poor sealing performance under high pressure, high temperature, and strong corrosion conditions, leading to leaks. Furthermore, the threads are prone to seizing after prolonged use, increasing maintenance difficulty and costs. In addition, connecting pipes of different diameters requires specific connectors, increasing procurement costs and management complexity, extending delivery cycles, and impacting project progress. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an integrated vertical check valve, which aims to improve the problems of cumbersome connection, poor sealing, and poor adaptability.

[0004] This utility model is implemented as follows: An integrated vertical check valve includes a vertical check valve body and a water pipe. A metal adsorption ring is fixedly installed at one end of the water pipe. Annular grooves matching the metal adsorption ring are provided at both ends of the check valve body. Annular permanent magnets cooperating with the metal adsorption ring are installed on the inner wall of the annular grooves. Positioning rings are symmetrically slidably installed on the outer side of the check valve body. Arc-shaped grooves are symmetrically provided on the inner wall of the positioning rings. Arc-shaped sliding plates are installed on the inner wall of the arc-shaped grooves. Multiple springs are fixedly installed between the arc-shaped sliding plates and the inner wall of the arc-shaped grooves. Arc-shaped inserts are fixedly installed on the inner wall of the arc-shaped sliding plates. Arc-shaped slots cooperating with the arc-shaped inserts are symmetrically provided on the outer side of the water pipe.

[0005] In a preferred embodiment of this utility model, an installation groove is provided on the outer side of the arc-shaped sliding plate, one end of the spring is fixedly connected to one side of the inner wall of the installation groove, and the other end of the spring is fixedly connected to one side of the inner wall of the arc-shaped groove.

[0006] In a preferred embodiment of this utility model, a pull rod is fixedly installed on the outer side of the arc-shaped slide plate, one end of the pull rod passes through the positioning ring and is fixedly installed on the pull plate, and the pull rod is located at the center of the outer side of the arc-shaped slide plate.

[0007] In a preferred embodiment of this utility model, a first sealing gasket is fixedly installed on the inner wall of the arc-shaped slot.

[0008] In a preferred embodiment of this utility model, a second sealing gasket is fixedly installed at both ends of the check valve body, and one end of the second sealing gasket is pressed against one end of the water pipe to form a seal.

[0009] In a preferred embodiment of this utility model, guide rings are symmetrically slidably installed on the outer side of the check valve body, and a support rod is fixedly installed between the guide ring and the positioning ring. Anti-slip texture is provided on the outer side of the guide ring.

[0010] In a preferred embodiment of this utility model, side plates are symmetrically fixedly installed on the outer side of the check valve body, a guide rod is fixedly installed on one side of the guide ring, one end of the guide rod slides through the adjacent side plate and is fixedly installed with a limiting circular plate, and the guide rod and the support rod are staggered.

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

[0012] Convenient and efficient connection: This integrated vertical check valve achieves rapid initial positioning and connection between the water pipe and the check valve body through the mutual attraction between the metal adsorption ring and the annular permanent magnet. Compared with traditional flange and threaded connections, this magnetic connection method eliminates the need for cumbersome bolt and nut tightening or thread turning operations, greatly shortening the installation time. It is especially suitable for complex installation environments with limited space, significantly improving installation efficiency.

[0013] Excellent sealing performance: The first sealing gasket on the inner wall of the arc-shaped slot and the second sealing gaskets at both ends of the check valve body work together at the connection between the water pipe and the check valve body. The first sealing gasket fills the tiny gaps between the arc-shaped insert and the arc-shaped slot, while the second sealing gasket forms a tight compression seal at the end faces of the water pipe and the check valve body, effectively preventing fluid leakage. Even under harsh conditions such as high pressure, high temperature, or strong corrosion, the double sealing structure ensures a good sealing effect and guarantees the stable operation of the fluid delivery system.

[0014] A robust and reliable connection: The positioning and locking structure, consisting of a positioning ring, an arc-shaped sliding plate, a spring, and an arc-shaped insert plate, further enhances the stability of the connection. After the water pipe and the check valve body are initially connected magnetically, the arc-shaped insert plate, under the elastic force of the spring, inserts into the arc-shaped slot of the water pipe, forming a secure locking connection. This connection method effectively resists the impact and vibration of the fluid, preventing the water pipe and the check valve body from loosening or separating during use, ensuring the reliability of the check valve during long-term operation.

[0015] Simple and flexible operation: The pull rod and pull plate design on the outside of the arc-shaped slide plate facilitates the operation of the positioning and locking structure. During installation and disassembly, the extension and retraction of the arc-shaped slide plate can be easily controlled by pulling the pull plate, realizing the quick connection and separation of the water pipe and the check valve body. The operation is simple and convenient, reducing the skill requirements for operators.

[0016] Excellent Guiding and Stability: The guide ring and support rod structure on the outside of the check valve body not only provide stable guidance for the sliding of the positioning ring, but also enhance the stability of the entire connection structure. The anti-slip texture design on the outside of the guide ring makes it easy for operators to grip and apply force during installation, avoiding operational errors caused by slippage. At the same time, the guide rod and limiting circular plate further restrict the range of motion of the guide ring and positioning ring, ensuring the normal operation of the positioning and locking structure and improving the stability of the check valve under different operating conditions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an integrated vertical check valve provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the separation structure of the check valve body and the water pipe is provided for the embodiments of this utility model;

[0020] Figure 3 A schematic diagram of the internal structure of the positioning ring is provided for the embodiments of this utility model;

[0021] Figure 4 A schematic diagram of the guide ring is provided for the embodiment of this utility model.

[0022] In the diagram: 110 - Check valve body; 120 - Water pipe; 121 - Metal suction ring; 122 - Arc-shaped slot; 130 - Positioning ring; 131 - Arc-shaped slide plate; 132 - Spring; 133 - Arc-shaped insert plate; 134 - Pull rod; 140 - Guide ring; 141 - Support rod; 142 - Guide rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figures 1-3This utility model provides a technical solution: an integrated vertical check valve, including a vertical check valve body 110 and a water pipe 120. A metal adsorption ring 121 is fixedly installed at one end of the water pipe 120. Annular grooves matching the metal adsorption ring 121 are provided at both ends of the check valve body 110. Annular permanent magnets cooperating with the metal adsorption ring 121 are installed on the inner wall of the annular grooves. Positioning rings 130 are symmetrically slidably installed on the outer side of the check valve body 110. Arc-shaped grooves are symmetrically provided on the inner wall of the positioning rings 130. Arc-shaped sliding plates 131 are installed on the inner wall of the arc-shaped grooves. Multiple springs 132 are fixedly installed between the arc-shaped sliding plates 131 and the inner wall of the arc-shaped grooves. Arc-shaped insert plates 133 are fixedly installed on the inner wall of the arc-shaped sliding plates 131. Arc-shaped slots 122 cooperating with the arc-shaped insert plates 133 are symmetrically provided on the outer side of the water pipe 120.

[0025] In some specific implementation schemes, an installation groove is provided on the outer side of the arc-shaped sliding plate 131. One end of the spring 132 is fixedly connected to one side of the inner wall of the installation groove, and the other end of the spring 132 is fixedly connected to one side of the inner wall of the arc-shaped groove. This allows the arc-shaped insert plate 133 to be inserted into or disengaged from the arc-shaped slot 122 more stably under the push of the spring 132, enhancing the reliability of the positioning and locking structure, ensuring a stable connection between the water pipe 120 and the check valve body 110, and improving the stability and durability of the check valve connection under different working conditions.

[0026] In some specific implementation schemes, a pull rod 134 is fixedly installed on the outside of the arc-shaped slide plate 131. One end of the pull rod 134 passes through the positioning ring 130 and is fixedly installed on the pull plate. The pull rod 134 is located at the center of the outside of the arc-shaped slide plate 131. This greatly simplifies the installation and disassembly operations, improves the convenience of operation, and reduces the difficulty of operation. Even non-professionals can easily complete the connection and separation operations, improving the convenience and versatility of the check valve.

[0027] In some specific implementation schemes, a first sealing gasket is fixedly installed on the inner wall of the arc-shaped slot 122, and a second sealing gasket is fixedly installed at both ends of the check valve body 110. One end of the second sealing gasket is squeezed against one end of the water pipe 120 to seal, ensuring that the check valve body 110 can still maintain a good sealing effect under harsh working conditions such as high pressure, high temperature or strong corrosion, and ensuring the safe and stable operation of the fluid transportation system.

[0028] Please see Figure 4 A guide ring 140 is symmetrically slidably installed on the outer side of the check valve body 110. A support rod 141 is fixedly installed between the guide ring 140 and the positioning ring 130. The outer side of the guide ring 140 is provided with anti-slip texture.

[0029] In some specific implementations, side plates are symmetrically fixedly installed on the outer side of the check valve body 110, and a guide rod 142 is fixedly installed on one side of the guide ring 140. One end of the guide rod 142 slides through the adjacent side plate and is fixedly installed with a limiting circular plate. The guide rod 142 and the support rod 141 are staggered. The guide rod 142 and the limiting circular plate limit the range of motion of the guide ring 140 and the positioning ring 130, preventing them from sliding excessively and ensuring the normal operation of the positioning and locking structure. The staggered arrangement of the guide rod 142 and the support rod 141 enhances the stability of the structure, ensures the long-term stable operation of the check valve, and extends the service life of the equipment.

[0030] Working principle: During installation, align the water pipe 120 with one end of the check valve body 110, insert the metal adsorption ring 121 into the annular groove and fix it with the annular permanent magnet, then push the positioning ring 130 to move until the arc-shaped insert plate 133 is aligned with the arc-shaped slot 122. At this time, the spring force of the spring 132 drives the arc-shaped insert plate 133 to be inserted into the arc-shaped slot 122 and fixed. When disassembly is required, simply pull the pull rod 134. The pull rod 134 drives the arc-shaped slide plate 131 to move until the arc-shaped insert plate 133 falls out of the arc-shaped slot 122, and then disassemble it according to the above installation steps.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An integrated vertical check valve, characterized in that, The device includes a vertical check valve body and a water pipe. A metal adsorption ring is fixedly installed at one end of the water pipe. Both ends of the check valve body are provided with annular grooves that match the metal adsorption ring. Annular permanent magnets that cooperate with the metal adsorption rings are installed on the inner walls of the annular grooves. Positioning rings are symmetrically slidably installed on the outer side of the check valve body. Arc-shaped grooves are symmetrically provided on the inner walls of the positioning rings. Arc-shaped sliding plates are installed on the inner walls of the arc-shaped grooves. Multiple springs are fixedly installed between the arc-shaped sliding plates and the inner walls of the arc-shaped grooves. Arc-shaped inserts are fixedly installed on the inner walls of the arc-shaped sliding plates. Arc-shaped slots that cooperate with the arc-shaped inserts are symmetrically provided on the outer side of the water pipe.

2. The integrated vertical check valve according to claim 1, characterized in that, The outer side of the arc-shaped sliding plate is provided with a mounting groove. One end of the spring is fixedly connected to one side of the inner wall of the mounting groove, and the other end of the spring is fixedly connected to one side of the inner wall of the arc-shaped groove.

3. The integrated vertical check valve according to claim 1, characterized in that, A pull rod is fixedly installed on the outer side of the arc-shaped sliding plate, and one end of the pull rod passes through the positioning ring and is fixedly installed on the pull plate.

4. The integrated vertical check valve according to claim 1, characterized in that, A first sealing gasket is fixedly installed on the inner wall of the arc-shaped slot.

5. The integrated vertical check valve according to claim 1, characterized in that, The second sealing gasket is fixedly installed at both ends of the check valve body.

6. The integrated vertical check valve according to claim 1, characterized in that, The check valve body has guide rings symmetrically slidably installed on its outer side, and a support rod is fixedly installed between the guide rings and the positioning ring.

7. The integrated vertical check valve according to claim 6, characterized in that, Side plates are symmetrically fixedly installed on the outer side of the check valve body, and a guide rod is fixedly installed on one side of the guide ring. One end of the guide rod slides through the adjacent side plate and is fixedly installed with a limiting circular plate.