An ultra-thin clamped-in check valve

Abstract

The application provides an ultra-thin pair of clamping check valve, comprising a valve body, a valve clack, a spring seat and a spring; the valve body is provided with an inlet end and an outlet end, the valve clack is arranged at the outlet end and blocks the outlet end; the spring seat is arranged in the valve body and connected with the valve clack, and the spring is sleeved on the spring seat; an annular mounting part extending outward is arranged on the peripheral wall of the valve body close to the outlet end, and the valve body is hidden in the pipeline or equipment from the annular mounting part to the inlet end part, and the check valve is installed through the annular mounting part. When the application is installed, the valve body is fixed to the pipeline system in a flange clamping mode through the annular mounting part on the valve body, the valve body from the annular mounting part to the inlet end part and the valve clack are hidden in the pipeline, and only the thickness of the annular mounting part is exposed, so that an ultra-thin installation structure is realized and space is saved.

Description

Technical Field

[0001] This application relates to the field of valves used in various pipelines or equipment, and specifically to an ultra-thin wafer check valve. Background Technology

[0002] Check valves are widely used in industrial automation processes. They are an important fluid control device that prevents backflow of media and protects equipment and pipelines for safety and stability.

[0003] As check valves are increasingly used in various industries, the traditional check valve structures and varieties are constantly diversifying, making the development of new check valve products that meet market demands imperative. Currently, there are many types of commonly used check valves. Structurally, the most common categories are lift-type and swing-type, with each type further subdivided into various structural forms. For customers with limited installation space or those who wish to save installation space, where concealment of the check valve is not possible and a larger installation area is required, this presents a challenge. Utility Model Content

[0004] In view of one of the defects in the prior art, the purpose of this application is to provide an ultra-thin wafer check valve.

[0005] A first aspect of this application provides an ultra-thin wafer-type check valve, comprising: a valve body, a valve disc, a spring seat, and a spring; The valve body has an inlet end and an outlet end, and the valve disc is disposed at the outlet end to block the outlet end; The spring seat is disposed in the valve body and connected to the valve disc, and the spring is sleeved on the spring seat; The valve body has an outwardly extending annular mounting portion on its peripheral wall near the outlet end. During installation, the portion of the valve body from the annular mounting portion to the inlet end can be hidden in the pipeline or equipment, and the check valve can be installed through the annular mounting portion.

[0006] Optionally, the valve disc is located outside the outlet end of the valve body, and the valve disc has a connecting portion extending towards the inlet end at its center on the side facing the outlet end, for detachable connection with the spring seat.

[0007] Optionally, a sealing ring is also included, disposed at the connection between the valve disc and the outlet end of the valve body, for sealing the inlet end.

[0008] Optionally, the valve disc is provided with an annular sealing groove on the side facing the outlet end, and the sealing ring is disposed in the annular sealing groove.

[0009] Optionally, the valve disc has a "T" shaped cross-section; The sealing ring is a rubber sealing ring.

[0010] Optionally, the valve body has a receiving cavity that communicates with the outlet end and the inlet end, and the diameter of the receiving cavity is larger than the diameter of the outlet end.

[0011] Optionally, one end of the spring seat near the outlet end is connected to the valve disc, and the other end of the spring seat is provided with a boss. One end of the spring abuts against the bottom wall of the receiving cavity near the outlet end, and the other end abuts against the boss.

[0012] Optionally, the diameter of the spring seat is smaller than the diameter of the outlet end. When the valve disc is subjected to external force to open the outlet end, it drives the spring seat to move and compress the spring.

[0013] Optionally, the spring seat has a connection hole at one end near the valve disc, and the connecting part of the valve disc can extend into the connection hole and be detachably connected to the spring seat.

[0014] Optionally, during installation, the valve body and valve disc of the ultra-thin wafer check valve can be hidden in the pipeline or equipment, and the pipeline or equipment can be connected through the annular mounting part on the valve body to save installation space. The ultra-thin wafer check valve can be installed horizontally or vertically.

[0015] This application provides an ultra-thin wafer-type check valve, which employs an annular mounting portion on the peripheral wall of the valve body outlet end. This annular mounting portion provides a stable wafer mounting carrier, ensuring convenient and efficient installation and operation. It also allows the portion of the valve body from the annular mounting portion to the inlet end to be concealed inside the pipeline or equipment after installation, compressing installation space and adapting to applications with limited installation space. This embodies the "ultra-thin" design of the wafer-type check valve in pipelines or equipment. Simultaneously, the valve disc blocks the channel at the outlet end. Combined with the spring seat connected to the valve disc and the spring fitted thereon, the elastic force of the spring provides a reliable reset force for the valve disc, ensuring that the valve disc opens when the medium flows in the forward direction and quickly resets and seals when the medium flows in the reverse direction, effectively preventing medium backflow and ensuring the safe and stable operation of the pipeline and equipment. Furthermore, the wafer-type check valve has fewer parts and a compact structure, reducing manufacturing difficulty and cost, and meeting the market demand for space-constrained, reliable, and low-cost valves.

[0016] Other technical effects resulting from the additional features will be further illustrated in the corresponding embodiments. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1This is a schematic diagram illustrating the structure of an ultrathin wafer check valve according to an exemplary embodiment; Figure 2 This is a cross-sectional view of an ultrathin wafer check valve according to an exemplary embodiment; In the diagram: 1. Valve body; 11. Inlet end; 12. Outlet end; 13. Annular mounting part; 14. Receiving cavity; 2. Valve disc; 21. Connecting part; 22. Annular sealing groove; 3. Spring seat; 31. Connecting hole; 32. Boss; 4. Sealing ring; 5. Spring. Detailed Implementation

[0018] The present application will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all fall within the protection scope of the present application. Parts not described in detail in the following embodiments can be implemented using existing technology.

[0019] In the description of the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0021] In the description of the embodiments in this application, "multiple" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or devices.

[0023] Currently, there are many types of check valves available. Among them, the most common types are lift-type and swing-type, with each type further subdivided into various structural forms. For customers with limited installation space or who wish to save installation space, concealing the check valve is not feasible, requiring a larger installation area. To address these issues, this application provides an ultra-thin wafer-type check valve to solve the aforementioned problems.

[0024] Reference Figure 1 As shown in one embodiment of this application, an ultra-thin wafer check valve includes: a valve body 1, a valve disc 2, a spring seat 3, and a spring 5.

[0025] The valve body 1 has an inlet end 11 and an outlet end 12. The valve disc 2 is located at the outlet end 12 and blocks the outlet end 12. The spring seat 3 is located inside the valve body 1 and connected to the valve disc 2. The spring 5 is sleeved on the spring seat 3. The valve body 1 has an outwardly extending annular mounting part 13 on its peripheral wall near the outlet end 12. The part of the valve body 1 from the annular mounting part 13 to the inlet end 11 can be hidden in the pipeline or equipment during installation, and the check valve can be installed through the annular mounting part 13.

[0026] Specifically, during installation, the spring seat 3 and spring 5 are installed inside the valve body 1. The valve disc 2 blocks the outlet end 12 of the valve body 1 and is connected to the spring seat 3 inside the valve body 1. When the medium flows in the forward direction, the fluid pressure pushes the valve disc 2 to move the spring seat 3, compressing the spring 5 and realizing the flow of the medium. When the medium flows back, the elastic potential energy of the spring 5 is released, driving the valve disc 2 to quickly reset and block the outlet end 12 through the spring seat 3, forming a one-way check function. The annular mounting part 13 is fixed to the pipeline system by flange clamping. The valve body 1 from the annular mounting part 13 to the inlet end 11 is hidden inside the pipeline, with only the thickness of the annular mounting part 13 exposed, realizing an ultra-thin installation structure.

[0027] In the above embodiments of this application, the design of the annular mounting part 13 and the concealed valve body 1 achieves a compact installation method in which most of the structure of the valve body 1 is hidden in the pipeline, effectively reducing the external space occupied. At the same time, the cooperation between the concealed valve body 1 and the annular mounting part 13 enhances the installation stability and sealing reliability. Through the spring 5, spring seat 3 and valve disc 2, the structure is simple, reducing production costs. The medium directly pushes the valve disc 2 to open the outlet end 12, reducing the opening stroke of the check valve. It can be opened without setting a large pressure, which not only ensures the backflow prevention function of the check valve, but also optimizes the opening stroke of the overall equipment, space utilization and installation convenience.

[0028] Reference Figure 2 As shown, in some specific embodiments of this application, for the valve disc 2 located outside the outlet end 12 of the valve body 1, the valve disc 2 has a connecting part 21 extending towards the inlet end 11 at the center of the side facing the outlet end 12, for detachable connection with the spring seat 3.

[0029] Specifically, the valve disc 2 is located outside the outlet end 12, and a connecting part 21 is provided at the center of the side facing the outlet end 12, which is detachably connected to the spring seat 3 inside the valve body 1. During operation, the medium flows from the inlet end 11 to the outlet end 12, pushing the valve disc 2 to move out of the valve body 1, opening the outlet end 12, and realizing the flow of the medium. At the same time, when the valve disc 2 moves out of the valve body 1, the valve disc 2 drives the spring seat 3 to move through the connecting part 21, compressing the spring 5. When the flow stops, the spring 5 pushes the spring seat 3 to drive the valve disc 2 to close the outlet end 12.

[0030] In the above embodiments of this application, by setting the valve disc 2 outside the valve body 1 and providing a connecting part 21 on the valve disc 2 to connect with the spring seat 3, the structure is simple and can be quickly disassembled and maintained. Combined with the ultra-thin installation method of the concealed valve body 1 and the annular mounting part 13, the external space occupation is significantly reduced. The linkage mechanism between the spring seat 3 and the valve disc 2 ensures low resistance opening during forward flow and rapid response closing during backflow.

[0031] In some specific embodiments of this application, a sealing ring 4 is also included, which is disposed at the connection between the valve disc 2 and the outlet end 12 of the valve body 1, for sealing the inlet end 11.

[0032] In the above embodiments of this application, by setting the sealing ring 4 at the connection between the valve disc 2 and the outlet end 12 of the valve body 1, and combining it with the spring 5, the leakage path of the medium in the closed state of the valve disc 2 is effectively blocked through physical sealing, thereby enhancing the sealing reliability of the check valve, avoiding the problem of medium leakage or backflow failure caused by poor sealing, and improving the stability and safety of the check valve under forward flow and reverse shut-off conditions.

[0033] In some specific embodiments of this application, an annular sealing groove 22 is provided on the side of the valve disc 2 facing the outlet end 12, and the sealing ring 4 is disposed in the annular sealing groove 22.

[0034] In the above embodiments of this application, by providing an annular sealing groove 22 on the valve disc 2 and cooperating with the sealing ring 4, the sealing ring 4 is precisely positioned and axially constrained by the annular sealing groove 22, which effectively prevents the sealing ring 4 from displacing, curling, or falling off under the conditions of medium impact or thermal expansion and contraction, thereby improving the sealing stability at the connection between the valve disc 2 and the outlet end 12.

[0035] Reference Figure 2 As shown, in some specific embodiments of this application, the cross-section of the valve disc 2 is a "T" shaped structure, and the sealing ring 4 is a rubber sealing ring.

[0036] In some specific embodiments of this application, the valve body 1 is provided with a receiving cavity 14 that communicates with the outlet end 12 and the inlet end 11, and the diameter of the receiving cavity 14 is larger than the diameter of the outlet end 12.

[0037] In the above embodiments of this application, a receiving cavity 14 is provided in the valve body 1, which is connected to the outlet end 12 and the inlet end 11. At the same time, the diameter of the receiving cavity 14 is larger than the diameter of the outlet end 12, forming a stepped structure in the valve body 1 to limit the position of the spring 5.

[0038] In some specific embodiments of this application, the end of the spring seat 3 near the outlet end 12 is connected to the valve disc 2, and the other end of the spring seat 3 is provided with a boss 32. One end of the spring 5 abuts against the bottom wall of the receiving cavity 14 near the outlet end 12, and the other end abuts against the boss 32.

[0039] Specifically, a receiving cavity 14 communicating with the inlet end 11 and the outlet end 12 is set in the valve body 1. Its diameter is larger than that of the outlet end 12 to form a stepped structure to restrict the position of the spring 5. One end of the spring seat 3 is connected to the valve disc 2, and the other end is provided with a boss 32. The two ends of the spring 5 abut against the bottom wall of the receiving cavity 14 near the outlet end 12 and the boss 32, respectively, forming a linkage positioning structure of spring 5-boss 32-valve disc 2. This ensures that the spring 5 can stably extend and retract when the medium pressure changes and drive the valve disc 2 to respond quickly. This achieves precise axial positioning and stable operation of the spring 5 and avoids opening / closing failure caused by spring 5 offset. At the same time, the abutment structure between the boss 32 and the bottom wall of the receiving cavity 14 enhances the force transmission efficiency of the spring 5. Combined with the quick reset mechanism of the valve disc 2, it significantly improves the response speed and sealing reliability of the check valve. It is especially suitable for high-frequency switching or medium pressure fluctuation conditions, extending the service life of the equipment and reducing maintenance costs.

[0040] In some specific embodiments of this application, when the diameter of the spring seat 3 is smaller than the diameter of the outlet end 12, the valve disc 2 is subjected to external force to open the outlet end 12, which drives the spring seat 3 to move and compress the spring 5.

[0041] In the above embodiments of this application, the design of the spring seat 3 having a smaller diameter than the outlet end 12 ensures that when the valve disc 2 is opened by external force to the outlet end 12, the axial movement of the spring seat 3 compresses the spring 5. At the same time, the diameter difference ensures that the spring seat 3 will not block the outlet end 12 channel, forming a smooth path for the fluid to flow in the forward direction. By making the diameter of the spring seat 3 smaller than the diameter of the outlet end 12, the risk of the spring seat 3 blocking the outlet end 12 is avoided, ensuring the maximum flow area and low resistance characteristics when the medium flows in the forward direction, effectively improving the flow efficiency and operational stability of the check valve.

[0042] Spring 5 is a conical spring, and the diameter of the end that abuts against the boss 32 is smaller than the diameter of the end that abuts against the inner wall of the receiving cavity.

[0043] By using a conical spring, with its small-diameter end abutting against the boss 32 of the spring seat 3 and its large-diameter end abutting against the bottom wall of the receiving cavity 14, the spring 5 can be embedded layer by layer into its large-diameter receiving cavity 14 when compressed, thus reducing the axial installation space of the spring 5. At the same time, the abutting of the large-diameter end of the spring 5 against the bottom wall effectively prevents lateral bending and jamming during operation, ensuring the stability and reliability of valve opening and closing, and helping to reduce media impact.

[0044] Reference Figure 1 As shown in this application, one end of the spring seat 3 is directly provided with multiple fixed posts, and there is a gap between the fixed posts. The spring 5 is sleeved on the fixed posts, and its two ends abut against the boss 32 and the inner wall of the receiving cavity on the valve body 1, respectively. The medium pushes the valve disc 2 to open the outlet end 12 through the gap between the fixed posts, so as to realize the flow of the medium and make the fluid evenly push the valve disc 2 to open, thereby saving space and improving the flow efficiency.

[0045] In some specific embodiments of this application, a connection hole 31 is provided at one end of the spring seat 3 near the valve disc 2, and the connecting part 21 of the valve disc 2 can extend into the connection hole 31 and be detachably connected to the spring seat 3.

[0046] Specifically, a connection hole 31 is provided at one end of the spring seat 3 near the valve disc 2. The connecting part 21 of the valve disc 2 can be inserted into the hole and mechanically locked through a structure such as a thread, snap or pin, forming a connection structure that can be quickly disassembled and assembled, ensuring that the valve disc 2 and the spring seat 3 are stably linked during operation and are easy to separate during later maintenance.

[0047] In some specific embodiments of this application, when installing an ultra-thin wafer check valve, the valve body 1 and valve disc 2 can be hidden in the pipeline or equipment. The pipeline or equipment is connected through the annular mounting part 13 on the valve body 1 to save installation space. The ultra-thin wafer check valve can be installed horizontally or vertically.

[0048] Specifically, during installation, the ultra-thin wafer check valve is fixed to the pipeline system by flange clamping through the annular mounting part 13 on the valve body 1. The valve body 1 from the annular mounting part 13 to the inlet end 11 and the valve disc 2 are all hidden inside the pipeline, with only the thickness of the annular mounting part 13 exposed, achieving an ultra-thin installation structure and saving space, which can be adapted to horizontal or vertical installation scenarios. During operation, the pressure of the forward flowing medium pushes the valve disc 2 to drive the spring seat 3 to compress the spring 5, and the medium flows through the receiving cavity 14. During backflow, the spring 5 releases elastic potential energy to drive the spring seat 3 to drive the valve disc 2 to quickly reset and block the outlet end 12. With the precise sealing of the sealing ring 4 in the annular sealing groove 22 at the connection between the valve disc 2 and the outlet end 12, a highly efficient one-way check function is formed.

[0049] When installing the ultra-thin wafer check valve, two additional flanges, screws, and gaskets can be used to clamp the annular mounting part 13. After installation in the pipeline system, only the thickness of the maximum outer diameter flange can be seen from the outside, while the rest is hidden inside the pipe.

[0050] It should be noted that the dimensions of the components in this application can be modified as needed to adapt to different installation spaces.

[0051] The above embodiments of this application utilize an ultra-thin concealed installation check valve, reducing external space occupation. The annular mounting part 13 is fixed to the flange, enhancing stability and sealing reliability. The diameter difference design of the spring seat 3, the receiving cavity 14, and the outlet end 12 ensures stable operation of the spring 5 and avoids blocking the outlet end 12, improving flow efficiency. The check valve has a simple structure, consisting of a valve body 1, valve disc 2, spring seat 3, spring 5, and sealing ring 4, resulting in lower cost. During installation, only the space of a flange thickness is needed to install the ultra-thin wafer check valve. After installation, it appears as a thin flange, with the rest hidden in the pipeline or equipment. The detachable connection structure facilitates quick maintenance and reduces downtime costs. The synergistic design of the sealing ring 4 and the annular sealing groove 22 enhances leak prevention capabilities and extends equipment life.

[0052] The preferred features in the above embodiments can be used individually in any embodiment, or in any combination thereof, provided they do not conflict with each other. Furthermore, parts not described in detail in the embodiments can be implemented using existing technologies.

[0053] The foregoing has described some specific embodiments of this application. It should be understood that this application is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this application. The above-described preferred features can be used in any combination without conflict.

Claims

1. An ultra-thin wafer-type check valve, characterized in that, include: Valve body, valve disc, spring seat, and spring; The valve body has an inlet end and an outlet end, and the valve disc is disposed at the outlet end to block the outlet end; The spring seat is disposed in the valve body and connected to the valve disc, and the spring is sleeved on the spring seat; The valve body has an outwardly extending annular mounting portion on its peripheral wall near the outlet end. During installation, the portion of the valve body from the annular mounting portion to the inlet end can be hidden in the pipeline or equipment, and the check valve can be installed through the annular mounting portion.

2. The ultra-thin wafer-type check valve according to claim 1, characterized in that, The valve disc is located outside the outlet end of the valve body, and the center of the valve disc facing the outlet end has a connecting part extending towards the inlet end for detachable connection with the spring seat.

3. The ultra-thin wafer-type check valve according to claim 2, characterized in that, It also includes a sealing ring, which is disposed at the connection between the valve disc and the outlet end of the valve body, for sealing the inlet end.

4. The ultra-thin wafer-type check valve according to claim 3, characterized in that, The valve disc has an annular sealing groove on the side facing the outlet end, and the sealing ring is disposed in the annular sealing groove.

5. The ultra-thin wafer-type check valve according to claim 4, characterized in that, The valve disc has a "T" shaped cross-section; the sealing ring is a rubber sealing ring.

6. The ultra-thin wafer-type check valve according to claim 1, characterized in that, The valve body has a receiving cavity that communicates with the outlet end and the inlet end, and the diameter of the receiving cavity is larger than the diameter of the outlet end.

7. The ultra-thin wafer-type check valve according to claim 6, characterized in that, One end of the spring seat near the outlet end is connected to the valve disc, and the other end of the spring seat is provided with a boss. One end of the spring abuts against the bottom wall of the receiving cavity near the outlet end, and the other end abuts against the boss.

8. The ultra-thin wafer-type check valve according to claim 7, characterized in that, The diameter of the spring seat is smaller than the diameter of the outlet end. When the valve disc is subjected to external force to open the outlet end, it drives the spring seat to move and compress the spring.

9. The ultra-thin wafer-type check valve according to claim 2, characterized in that, The spring seat has a connection hole at one end near the valve disc, and the connecting part of the valve disc can extend into the connection hole and be detachably connected to the spring seat.

10. The ultra-thin wafer-type check valve according to claim 1, characterized in that, When the ultra-thin wafer check valve is installed, the valve body and the valve disc can be hidden in the pipeline or equipment. The pipeline or equipment is connected through the annular mounting part on the valve body, which saves installation space. The ultra-thin wafer check valve can be installed horizontally or vertically.

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