Silent valve double support assembly

Abstract

This utility model relates to the field of silent valve technology and discloses a silent valve double-support assembly, including a valve body, an upper support frame at the upper end of the valve body, a lower support frame at the lower end of the valve body, a valve disc inside the valve body and located above the lower support frame, and three protrusions arranged in an array on the valve disc, with a mounting hole in the center of each protrusion. A valve stem is mounted on the protrusion through the mounting hole, and a spring is sleeved on the outer surface of the valve stem. This silent valve double-support assembly, with its upper and lower support frames, allows the valve disc to effectively support itself when it moves upward and opens, contacting the lower end of the inner support tube. At this time, fluid can pass through the gaps between the valve disc and the valve body, and some fluid can also pass directly through the central hole. When backflow occurs, the fluid pushes the valve disc downward and presses against the lower support frame. At this time, a conical plug on the lower support frame passes through the central hole and seals it, ensuring a tight seal.

Description

Technical Field

[0001] This utility model relates to the field of silent valve technology, specifically to a silent valve double-support assembly. Background Technology

[0002] A silent valve, also known as a silent check valve, is a valve that automatically opens and closes its disc based on the flow of the medium to prevent backflow and reduce noise.

[0003] The shaft of existing silent valves is usually located at the center of the valve disc, which cooperates with the guide sleeve of the valve cover or valve body to form a vertical lifting guide structure. When the valve disc moves upward and is in the open state, there is no effective support structure above the valve disc, and the liquid impacting the valve disc needs to be redirected. It can only flow through the gaps between the valve disc and the valve body. When the fluid impacts the valve disc at high speed, turbulence and pressure fluctuations may be generated. After long-term use, it is easy to cause swaying or jamming. Therefore, a double support assembly for silent valves is needed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dual-support assembly for a silent valve, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a silent valve double support assembly, including a valve body, an upper support frame at the upper end of the valve body, a lower support frame integrally formed with the valve body at the lower end of the valve body, a valve disc inside the valve body and located above the lower support frame, three protrusions arranged in an array on the valve disc, an installation hole is opened in the center of the protrusion, a valve stem is installed on the protrusion through the installation hole, and a spring is sleeved on the outer surface of the valve stem; The upper support frame includes a cover and an inner support tube. The cover is located at the upper end inside the valve body, the inner support tube is located at the center of the cover, and a central hole is opened at the center of the valve disc.

[0006] Preferably, the upper support frame further includes connecting arms and fixing rings, and a plurality of connecting arms are provided, with a plurality of connecting arms arrayed on the upper surface of the outer surface of the cover.

[0007] Preferably, the end of the connecting arm away from the cover is connected to the fixing ring, and an annular groove is provided on the upper end of the inner wall of the valve body, and the fixing ring is installed in the annular groove.

[0008] Preferably, the cover is provided with three bushings arranged in an array, the lower end of the outer surface of the bushings is provided with a retaining plate, and the lower support frame is provided with a lower shaft hole.

[0009] Preferably, the upper end of the valve stem is inserted into the inside of the bushing tube, and the lower end of the valve stem is inserted into the inside of the lower shaft hole.

[0010] Preferably, the spring is disposed on the upper end of the boss, and the upper end of the spring is sleeved on the outer surface of the bushing and connected to the clamping platform.

[0011] Preferably, the lower support frame has a tapered plug at its inner center that mates with the central hole.

[0012] Preferably, flanges are provided on the outer sides of both ends of the valve body.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The silent valve double support assembly is equipped with an upper support frame and a lower support frame. When the fluid flows into the valve body, the fluid will push the valve disc compression spring to move upward. When the valve disc moves upward and opens and contacts the lower end of the inner support tube, the inner support tube can effectively support the valve disc and ensure the stability of the valve disc position. When backflow occurs, the fluid pushes the valve disc down to press against the lower support frame. At this time, the conical plug on the lower support frame passes through the central hole and can seal the central hole to ensure sealing.

[0014] 2. The silent valve has a double-support assembly. When the valve disc is in the open state, the fluid can not only pass through the gap between the valve disc and the valve body, but also some of the fluid can directly pass through the central hole, flowing through the inner support tube to the external pipeline, reducing the impact force on the valve disc and extending the service life of the device. Attached Figure Description

[0015] Figure 1 This is one of the schematic diagrams of the overall structure of the dual-support assembly of the silent valve of this utility model; Figure 2 This is the second schematic diagram of the overall structure of the dual-support assembly of the silent valve of this utility model; Figure 3 This is a cross-sectional view of the valve body of this utility model; Figure 4 This is a schematic diagram of the valve body of this utility model; Figure 5 This is a schematic diagram of the upper support frame of this utility model; Figure 6 This is a schematic diagram of the connection structure between the valve disc and the upper support frame of this utility model.

[0016] In the diagram: 1. Valve body; 2. Upper support frame; 201. Cover; 202. Inner support tube; 203. Bushing; 204. Connecting arm; 205. Fixing ring; 3. Lower support frame; 301. Lower shaft hole; 4. Valve disc; 401. Boss; 402. Center hole; 5. Valve stem; 6. Spring. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-6 The silent valve double support assembly includes a valve body 1, an upper support frame 2 at the upper end of the valve body 1, a lower support frame 3 integrally formed with the valve body 1 at the lower end of the valve body 1, a valve disc 4 inside the valve body 1 and located above the lower support frame 3, three bosses 401 arranged in an array on the valve disc 4, a mounting hole is opened in the center of the bosses 401, a valve stem 5 is installed on the bosses 401 through the mounting hole, and a spring 6 is sleeved on the outer surface of the valve stem 5; The upper support frame 2 includes a cover 201 and an inner support tube 202. The cover 201 is located inside the upper part of the valve body 1, and the inner support tube 202 is located at the center of the cover 201. A central hole 402 is provided at the center of the valve disc 4.

[0019] The upper support frame 2 also includes a connecting arm 204 and a fixing ring 205. Several connecting arms 204 are arranged in an array on the upper part of the outer surface of the cover 201. The end of the connecting arm 204 away from the cover 201 is connected to the fixing ring 205. An annular groove is opened at the upper end of the inner wall of the valve body 1. The fixing ring 205 is installed in the annular groove. The cover 201 can be effectively connected to the fixing ring 205 through the connecting arm 204. In addition, by opening an annular groove on the valve body 1, it is convenient to install the fixing ring 205. With the help of fixing screws, the position of the fixing ring 205 can be effectively fixed, so as to realize the effective installation and fixation of the upper support frame 2.

[0020] The cover 201 has three bushings 203 arranged in an array. The lower end of the outer surface of the bushing 203 has a retaining plate. The lower support frame 3 has a lower shaft hole 301. The upper end of the valve stem 5 is inserted into the bushing 203, and the lower end of the valve stem 5 is inserted into the lower shaft hole 301. The spring 6 is set on the upper end of the boss 401. The upper end of the spring 6 is sleeved on the outer surface of the bushing 203 and connected to the retaining plate. When the valve stem 5 moves up and down under the action of the valve disc 4, the bushing 203 and the lower shaft hole 301 can effectively limit the valve stem 5, ensuring that the valve stem 5 and the valve disc 4 move up and down in a vertical direction.

[0021] The lower support frame 3 has a conical plug at its inner center that cooperates with the central hole 402. When the fluid flows into the valve body 1, the fluid pushes the valve disc 4 to squeeze the spring 6 upward. When the valve disc 4 moves upward and opens and contacts the lower end of the inner support tube 202, the inner support tube 202 can effectively support the valve disc 4. At this time, the fluid can not only pass through the gap between the valve disc 4 and the valve body 1, but also some fluid can directly pass through the central hole 402. When backflow occurs, the fluid pushes the valve disc 4 downward and closes to the lower support frame 3. At this time, the conical plug on the lower support frame 3 passes through the central hole 402 and can seal the central hole 402 to ensure sealing.

[0022] The valve body 1 has flanges on both outer sides, which allow it to be connected to fluid transport pipelines.

[0023] Working principle: When fluid flows into the valve body 1, the fluid pushes the valve disc 4 to compress the spring 6 and move it upward. When the valve disc 4 moves upward and opens and contacts the lower end of the inner support tube 202, the inner support tube 202 can effectively support the valve disc 4 and ensure the stability of the valve disc 4. At this time, the fluid can not only pass through the gap between the valve disc 4 and the valve body 1, but also some of the fluid can directly pass through the central hole 402 and flow through the inner support tube 202 to the external pipe, reducing the impact force on the valve disc 4 and extending the service life of the device.

[0024] Furthermore, when backflow occurs, the fluid pushes the valve disc 4 down to press against the lower support frame 3. At this time, the conical plug on the lower support frame 3 passes through the central hole 402 and can seal the central hole 402 to ensure sealing.

[0025] 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 silent valve double-support assembly, comprising a valve body (1), characterized in that, The valve body (1) is provided with an upper support frame (2) at the upper end, and the valve body (1) is provided with a lower support frame (3) integrally formed with the valve body (1) at the lower end. A valve disc (4) is provided inside the valve body (1) and located at the upper end of the lower support frame (3). Three bosses (401) are arranged in an array on the valve disc (4). An installation hole is opened in the center of the boss (401). A valve stem (5) is installed on the boss (401) through the installation hole. A spring (6) is sleeved on the outer surface of the valve stem (5). The upper support frame (2) includes a cover (201) and an inner support tube (202). The cover (201) is located inside the upper end of the valve body (1), and the inner support tube (202) is located at the center of the cover (201). The valve disc (4) has a central hole (402) at its center.

2. The silent valve double-support assembly according to claim 1, characterized in that, The upper support frame (2) also includes a connecting arm (204) and a fixing ring (205). A plurality of connecting arms (204) are provided, and a plurality of connecting arms (204) are arranged in an array on the upper part of the outer surface of the cover (201).

3. The silent valve double-support assembly according to claim 2, characterized in that, The end of the connecting arm (204) away from the cover (201) is connected to the fixing ring (205). The upper end of the inner wall of the valve body (1) is provided with an annular groove, and the fixing ring (205) is installed in the annular groove.

4. The silent valve double-support assembly according to claim 1, characterized in that, The cover (201) is provided with three bushings (203) arranged in an array. The lower end of the outer surface of the bushing (203) is provided with a clamping platform. The lower support frame (3) is provided with a lower shaft hole (301).

5. The silent valve double-support assembly according to claim 4, characterized in that, The upper end of the valve stem (5) is inserted into the bushing (203), and the lower end of the valve stem (5) is inserted into the lower shaft hole (301).

6. The silent valve double-support assembly according to claim 5, characterized in that, The spring (6) is disposed on the upper end of the boss (401), and the upper end of the spring (6) is sleeved on the outer surface of the bushing (203) and connected to the clamping platform.

7. The silent valve double-support assembly according to claim 1, characterized in that, The lower support frame (3) has a conical plug at its inner center that cooperates with the central hole (402).

8. The silent valve double-support assembly according to claim 1, characterized in that, Flanges are provided on both outer sides of the valve body (1).

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