Impact-resistant check valve

Abstract

The utility model discloses an impact-resistant check valve, and relates to the field of check valves. The impact-resistant check valve comprises a valve body unit and a check unit arranged in the valve body unit, the valve body unit comprises a valve shell and a valve seat, the valve seat is fixedly installed in the valve shell, the check unit comprises a valve rod, a valve clack, an elastic assembly and an installation frame, the valve rod is movably arranged in the valve shell, the valve clack is fixedly connected to the outer side of the valve rod in a sleeving mode, and the valve clack is fixedly connected to the valve rod in a sleeving mode. The valve clack is tightly attached to the valve seat, the elastic assembly is arranged on the outer side of the valve rod, one end of the elastic assembly abuts against the valve clack, and the mounting frame is mounted in the valve shell. According to the impact-resistant check valve, by optimizing the structural design of the valve body unit and the check unit, when the check valve is subjected to strong fluid impact, the check valve can rapidly respond and keep stable, deformation and sealing failure of the valve clack are effectively prevented, and by means of the reasonable design of the mounting frame, the valve clack and the valve rod can be easily disassembled when needing to be maintained or replaced.

Description

Technical Field

[0001] This utility model relates to the field of check valve technology, specifically to an impact-resistant check valve. Background Technology

[0002] In fluid transmission systems, check valves play a crucial role, ensuring unidirectional flow of the medium within pipelines and effectively preventing system turbulence or damage caused by backflow. However, in industries such as water conservancy, chemical engineering, and petroleum, fluid transmission systems often face complex and variable operating environments, including high pressure, high temperature, corrosive media, and frequent fluid impacts. These extreme conditions place extremely high demands on the performance of check valves, especially their impact resistance and ease of maintenance.

[0003] Traditional check valves often suffer from problems such as valve disc deformation, seal failure, or even complete valve body rupture when faced with strong fluid impacts, seriously affecting the stability and safety of the system. Furthermore, when check valves malfunction and require repair or replacement, their complex structure and difficult disassembly often lead to long repair cycles and high costs, causing unnecessary losses to production.

[0004] Therefore, developing a shock-resistant check valve that can withstand strong fluid shocks and is easy to disassemble and replace has become a pressing technical challenge in the field of fluid transmission systems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an impact-resistant check valve, which solves the problem that when traditional check valves malfunction and require repair or replacement, their complex structure and difficult disassembly often lead to long repair cycles, high costs, and unnecessary losses to production.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an impact-resistant check valve, comprising a check unit disposed within a valve body unit, wherein the valve body unit includes:

[0007] Valve housing;

[0008] The valve seat is fixedly installed inside the valve body;

[0009] The check unit includes:

[0010] The valve stem is movably located inside the valve body;

[0011] The valve disc is fixedly sleeved on the outside of the valve stem, and the valve disc fits tightly against the valve seat;

[0012] An elastic component is located on the outside of the valve stem, with one end abutting against the valve disc;

[0013] The mounting bracket is installed inside the valve housing and supports the valve stem and elastic components.

[0014] Preferably, a semi-circular end is fixedly installed at the end of the valve stem.

[0015] Preferably, the valve disc has an arc surface at one end near the semi-circular end, and a limit ring is fixedly installed at the other end of the valve disc away from the semi-circular end.

[0016] Preferably, the elastic component includes:

[0017] The large collar is movably fitted outside the limiting ring;

[0018] The small collar is movably sleeved on the outside of the valve stem;

[0019] A conical spring, with its two ends fixedly connected to a large collar and a small collar, respectively.

[0020] Preferably, a limit bracket is fixedly installed on the valve seat, and the end of the valve stem is movably inserted into the limit bracket.

[0021] Preferably, a compression ring is fixedly installed on the side of the mounting bracket, and the compression ring is movably sleeved on the outside of the valve stem and tightly abuts against the small collar.

[0022] This utility model discloses an impact-resistant check valve, which has the following beneficial effects: By optimizing the structural design of the valve body unit and the check unit, and utilizing the semi-circular end fixedly installed at the end of the valve stem, as well as the arc surface opened at the end of the valve disc near the semi-circular end, the check valve can respond quickly and remain stable when faced with strong fluid impact, effectively preventing valve disc deformation and sealing failure, thereby ensuring the stability and safety of the system. Through the reasonable mounting bracket design, the valve disc and valve stem can be easily disassembled when maintenance or replacement is required, greatly shortening the maintenance cycle and reducing maintenance costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0026] Figure 3This is an exploded view of the structure of this utility model.

[0027] In the diagram: 1. Valve body unit; 11. Valve shell; 12. Valve seat; 2. Check unit; 21. Valve stem; 211. Semi-circular end; 22. Valve disc; 221. Arc surface; 23. Elastic component; 231. Large collar; 232. Small collar; 233. Conical spring; 24. Mounting bracket; 25. Limiting bracket; 26. Compression ring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This application provides an impact-resistant check valve, which solves the problem that traditional check valves, when malfunctioning and requiring repair or replacement, often suffer from long repair cycles and high costs due to their complex structure and difficult disassembly, resulting in unnecessary losses to production.

[0030] By optimizing the structural design of valve body unit 1 and check unit 2, and utilizing the semi-circular end 211 fixedly installed at the end of valve stem 21, and the arc surface 221 opened at the end of valve disc 22 near the semi-circular end 211, the check valve can respond quickly and remain stable when faced with strong fluid impact, effectively preventing deformation of valve disc 22 and sealing failure, thereby ensuring the stability and safety of the system. Through the reasonable design of mounting bracket 24, valve disc 22 and valve stem 21 can be easily disassembled when maintenance or replacement is required, greatly shortening the maintenance cycle and reducing maintenance costs.

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] Example 1

[0033] This utility model discloses an impact-resistant check valve.

[0034] According to the appendix Figure 1-3 As shown, the valve body unit 1 includes a check unit 2 disposed inside the valve body unit 1. The valve body unit 1 includes:

[0035] Valve housing 11;

[0036] Valve seat 12 is fixedly installed inside valve body 11;

[0037] Check unit 2 includes:

[0038] The valve stem 21 is movably disposed inside the valve body 11;

[0039] The valve disc 22 is fixedly sleeved on the outside of the valve stem 21, and the valve disc 22 is tightly fitted with the valve seat 12;

[0040] The elastic component 23 is disposed on the outside of the valve stem 21, and one end abuts against the valve disc 22;

[0041] Mounting bracket 24 is installed inside valve housing 11 and supports valve stem 21 and elastic component 23.

[0042] Furthermore, a semi-circular end 211 is fixedly installed at the end of the valve stem 21.

[0043] Furthermore, an arc surface 221 is provided at one end of the valve disc 22 near the semi-circular end 211, and a limit ring is fixedly installed at the other end of the valve disc 22 away from the semi-circular end 211.

[0044] By optimizing the structural design of valve body unit 1 and check unit 2, and utilizing the semi-circular end 211 fixedly installed at the end of valve stem 21, and the arc surface 221 opened at the end of valve disc 22 near the semi-circular end 211, the check valve can respond quickly and remain stable when faced with strong fluid impact, effectively preventing deformation of valve disc 22 and sealing failure, thereby ensuring the stability and safety of the system. Through the reasonable design of mounting bracket 24, valve disc 22 and valve stem 21 can be easily disassembled when maintenance or replacement is required, greatly shortening the maintenance cycle and reducing maintenance costs.

[0045] Example 2

[0046] This utility model discloses an impact-resistant check valve.

[0047] According to the appendix Figure 1-3 As shown, the valve body unit 1 includes a check unit 2 disposed inside the valve body unit 1. The valve body unit 1 includes:

[0048] Valve housing 11;

[0049] Valve seat 12 is fixedly installed inside valve body 11;

[0050] Check unit 2 includes:

[0051] The valve stem 21 is movably disposed inside the valve body 11;

[0052] The valve disc 22 is fixedly sleeved on the outside of the valve stem 21, and the valve disc 22 is tightly fitted with the valve seat 12;

[0053] The elastic component 23 is disposed on the outside of the valve stem 21, and one end abuts against the valve disc 22;

[0054] Mounting bracket 24 is installed inside valve housing 11 and supports valve stem 21 and elastic component 23.

[0055] Specifically disclosed, the resilient component 23 includes:

[0056] Large collar 231, which is movably sleeved on the outside of the limiting ring;

[0057] The small collar 232 is movably sleeved on the outside of the valve stem 21;

[0058] A conical spring 233 has its two ends fixedly connected to a large collar 231 and a small collar 232, respectively.

[0059] Furthermore, a limit bracket 25 is fixedly installed on the valve seat 12, and the end of the valve stem 21 is movably inserted into the limit bracket 25.

[0060] Furthermore, a compression ring 26 is fixedly installed on the side of the mounting bracket 24. The compression ring 26 is movably sleeved on the outside of the valve stem 21 and tightly abuts against the small collar 232.

[0061] When overhauling the check valve, the mounting bracket 24 can be opened and removed to separate the mounting bracket 24 and the compression ring 26 from the small collar 232. At this time, the elastic component 23 can be removed. If the elastic component 23 is damaged, it can be replaced. If the valve stem 21 and valve disc 22 are damaged, the valve stem 21 and valve disc 22 can be pulled out and replaced. After the overhaul is completed, the end of the valve stem 21 is inserted into the limiting bracket 25 again, and the large collar 231 is placed on the outside of the limiting ring. The small collar 232 is movably placed on the outside of the valve stem 21. Then, when installing the mounting bracket 24, the compression ring 26 is movably placed on the outside of the valve stem 21 and tightly abuts against the small collar 232, thus completing the installation.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant check valve, comprising a valve body unit (1) and a check unit (2) disposed within the valve body unit (1), characterized in that, The valve body unit (1) includes: Valve housing (11); Valve seat (12), which is fixedly installed inside the valve body (11); The check unit (2) includes: The valve stem (21) is movably disposed inside the valve body (11); The valve disc (22) is fixedly sleeved on the outside of the valve stem (21), and the valve disc (22) is tightly fitted with the valve seat (12); The elastic component (23) is disposed on the outside of the valve stem (21) and one end abuts against the valve disc (22); The mounting bracket (24) is installed inside the valve housing (11) and supports the valve stem (21) and the elastic component (23).

2. The shock-resistant check valve according to claim 1, characterized in that, The valve stem (21) is fixedly fitted with a semi-circular end (211).

3. The shock-resistant check valve according to claim 2, characterized in that, The valve disc (22) has an arc surface (221) at one end near the semi-circular end (211), and a limit ring is fixedly installed at the other end of the valve disc (22) away from the semi-circular end (211).

4. The shock-resistant check valve according to claim 3, characterized in that, The elastic component (23) includes: The large collar (231) is movably sleeved on the outside of the limiting ring; The small collar (232) is movably sleeved on the outside of the valve stem (21); A conical spring (233) is fixedly connected at both ends to a large collar (231) and a small collar (232).

5. The shock-resistant check valve according to claim 1, characterized in that, A limit frame (25) is fixedly installed on the valve seat (12), and the end of the valve stem (21) is movably inserted into the limit frame (25).

6. The shock-resistant check valve according to claim 4, characterized in that, A compression ring (26) is fixedly installed on the side of the mounting bracket (24). The compression ring (26) is movably sleeved on the outside of the valve stem (21) and tightly abuts against the small collar (232).

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