A fire-fighting resilient sealing gate valve

Abstract

This utility model discloses a fire-fighting resilient sealing gate valve, relating to the field of fire protection technology. It is characterized by comprising: a switching assembly including a valve stem, the valve stem bearing connecting to a mounting plate, the valve stem threadedly connected to a valve plate, and a sleeve fixedly connected to the valve stem; a valve body assembly including a pipe, the pipe fixedly communicating with a valve body, the valve body fixedly connected to an upper shell, the upper shell fixedly communicating with a valve cover, and the valve cover fixedly communicating with a valve seat; a valve plate disposed within the area formed by the valve body and the pipe; the valve body having a square groove matching the mounting plate, the mounting plate matching the upper shell; and a positioning ring fixedly connected to the sleeve. The technical problem this utility model aims to solve is to provide a fire-fighting resilient sealing gate valve that employs multiple O-ring seals and a disc spring compensation structure. After wear, the disc spring automatically tightens to compensate, improving service life and solving the problem of valve stem sealing leakage in traditional fire-fighting concealed stem gate valves.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, specifically to a fire-fighting resilient sealing gate valve. Background Technology

[0002] Traditional fire-fighting concealed stem gate valves use a double O-ring design for stem sealing. After repeated opening and closing, the O-rings are prone to wear, leading to valve leakage, water leakage in fire-fighting pipelines, and triggering the fire alarm system, posing a threat to the lives and property of residents and office workers.

[0003] Currently, there is a lack of a fire-fighting resilient sealing gate valve that employs multiple O-ring seals and a disc spring compensation structure. After wear, the disc spring automatically tightens to compensate, improving service life and solving the problem of stem sealing leakage in traditional fire-fighting concealed stem gate valves. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fire-fighting elastic sealing gate valve, which adopts a multi-ring O-ring and disc spring compensation structure. After wear, the disc spring automatically tightens and compensates, thereby improving the service life and solving the problem of valve stem sealing leakage in traditional fire-fighting concealed stem gate valves.

[0005] This utility model achieves its purpose through the following technical solution:

[0006] A fire-fighting resilient sealing gate valve, characterized in that it comprises: a switching assembly including a valve stem, the valve stem bearing connected to a mounting plate, the valve stem threadedly connected to a valve plate, and the valve stem fixedly connected to a sleeve; a valve body assembly including a pipe, the pipe fixedly communicating with a valve body, the valve body fixedly connected to an upper shell, the upper shell fixedly communicating with a valve cover, and the valve cover fixedly communicating with a valve seat; the valve plate being disposed within the area formed by the valve body and the pipe; the valve body having a square groove matching the mounting plate, the mounting plate matching the upper shell; the sleeve fixedly connected to a positioning ring, and the valve cover having an annular groove matching the positioning ring. By employing a valve stem, the valve plate moves within the area formed by the valve body and the pipe during its rotation, thereby achieving the opening and closing of the valve.

[0007] As a further limitation of this technical solution, a sealing assembly is also included. The valve cover is provided with a large O-ring groove, and a large O-ring is installed in the large O-ring groove. The sleeve passes through the large O-ring. The valve seat is provided with a small O-ring groove, and a small O-ring is installed in the small O-ring groove, thereby enhancing the sealing performance of the valve seat.

[0008] As a further limitation of this technical solution, the large O-ring is fixedly connected to a large disc spring, the large disc spring is fixedly connected to a pressure plate, the pressure plate matches the groove of the large O-ring, the sleeve passes through the pressure plate, and the large disc spring is fitted around the sleeve. The large disc spring provides stable elastic support for the large O-ring, and automatically compresses to compensate for wear, ensuring its sealing effect during operation. The pressure plate design not only matches the groove of the large O-ring but also effectively prevents displacement of the large disc spring during operation, further improving overall stability and reliability.

[0009] As a further limitation of this technical solution, the sleeve is provided with a set of small O-ring inner grooves, and the valve seat is provided with a set of small O-ring outer grooves. Small O-rings are installed in the inner grooves and corresponding outer grooves of the small O-rings. The small O-rings further enhance the sealing performance. When the sleeve and valve seat are tightly engaged, the small O-rings can effectively prevent fluid from passing through these tiny gaps, thereby improving the leak-proof capability of the valve in fire protection applications.

[0010] As a further limitation of this technical solution, at least the uppermost small O-ring is fixedly connected to a small disc spring, which is disposed within the inner groove of the small O-ring. Under the pressure of the small disc spring, the small O-ring fits more tightly within the sealing groove, further enhancing the tightness and reliability of the seal.

[0011] As a further limitation of this technical solution, the valve body is provided with a square sealing ring mounting groove, and a square sealing ring is installed in the square sealing ring mounting groove. The design of the square sealing ring further improves the sealing performance of the valve. The square sealing ring is made of wear-resistant and corrosion-resistant materials to ensure its long-term stability and durability in harsh environments. Through precise matching with the square sealing ring mounting groove, the square sealing ring provides a solid barrier for the valve, effectively isolating the fluid from the external environment, thereby protecting the internal components of the valve from damage.

[0012] As a further limitation of this technical solution, the valve stem is fixedly connected to a handle to facilitate rotation of the valve stem.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are:

[0014] This invention employs a multi-ring O-ring and disc spring compensation structure. After wear, the disc spring automatically tightens and compensates, improving service life and solving the problem of valve stem sealing leakage in traditional fire-fighting concealed stem gate valves. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial three-dimensional structural diagram of the switch assembly of this utility model.

[0017] Figure 3 This is a partial three-dimensional structural diagram of the valve housing assembly of this utility model.

[0018] Figure 4 For the localized explosion of this utility model Figure 1 .

[0019] Figure 5 For the localized explosion of this utility model Figure 2 .

[0020] In the picture:

[0021] 1. Switch assembly; 11. Sleeve; 12. Small O-ring inner groove; 13. Positioning ring; 14. Mounting plate; 15. Valve stem; 16. Valve plate; 17. Handle.

[0022] 2. Valve housing assembly; 21. Pipeline; 22. Valve body; 23. Square sealing ring mounting groove; 24. Square groove; 25. Upper shell; 26. Valve cover; 27. Valve seat; 28. Small O-ring outer groove; 29. ​​Circular groove; 210. Large O-ring groove.

[0023] 3. Sealing components, 31. Square sealing ring, 32. Small disc spring, 33. Small O-ring, 34. Pressure plate, 35. Large O-ring, 36. Large disc spring. Detailed Implementation

[0024] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0025] Example 1: This utility model includes: a switch assembly 1, including a valve stem 15, the valve stem 15 being connected to a mounting plate 14 via a bearing, the valve stem 15 being threadedly connected to a valve plate 16, and the valve stem 15 being fixedly connected to a sleeve 11; a valve housing assembly 2, including a pipe 21, the pipe 21 being fixedly connected to a valve body 22, the valve body 22 being fixedly connected to an upper shell 25, the upper shell 25 being fixedly connected to a valve cover 26, and the valve cover 26 being fixedly connected to a valve seat 27; the valve plate 16 is disposed within the area formed by the valve body 22 and the pipe 21; the valve body 22 is provided with a square groove 24 matching the mounting plate 14, and the mounting plate 14 is matched with the upper shell 25; the sleeve 11 is fixedly connected to a positioning ring 13, and the valve cover 26 is provided with an annular groove 29 matching the positioning ring 13. By using the valve stem 15, when it rotates, the valve plate 16 moves within the area formed by the valve body 22 and the pipe 21, thereby realizing the opening and closing of the valve.

[0026] It also includes a sealing assembly 3. The valve cover 26 is provided with a large O-ring groove 210, and a large O-ring 35 is installed in the large O-ring groove 210. The sleeve 11 passes through the large O-ring 35. The valve seat 27 is provided with a small O-ring groove 280, and a small O-ring 36 is installed in the small O-ring groove 280, which enhances the sealing performance of the valve seat 27.

[0027] An elastic sealing gasket 37 is provided on the bottom surface of the valve plate 16. When the valve plate 16 contacts the valve seat 27, the elastic sealing gasket 37 deforms, further improving the sealing effect. This allows the present invention to better prevent leakage in fire protection applications, ensuring the stability and safety of the valve.

[0028] The sleeve 11 is provided with a set of small O-ring inner grooves 12, and the valve seat 27 is provided with a set of small O-ring outer grooves 28. Small O-rings 33 are installed in the small O-ring inner grooves 12 and the corresponding small O-ring outer grooves 28. The small O-rings 33 further enhance the sealing performance. When the sleeve 11 and the valve seat 27 are tightly connected, the small O-rings 33 can effectively prevent fluid from passing through these tiny gaps, thereby improving the valve's leak-proof capability in fire protection applications.

[0029] The small O-ring 33 has good elasticity and wear resistance, and can maintain a good sealing effect even after long-term use and frequent opening and closing operations, ensuring the long-term stability and safety of the valve.

[0030] The valve body 22 is provided with a square sealing ring mounting groove 23, within which a square sealing ring 31 is installed. The design of the square sealing ring 31 further enhances the valve's sealing performance. The square sealing ring 31 is made of wear-resistant and corrosion-resistant materials to ensure its long-term stability and durability in harsh environments. Through precise matching with the square sealing ring mounting groove 23, the square sealing ring 31 provides a solid barrier for the valve, effectively isolating the fluid from the external environment, thereby protecting the valve's internal components from damage.

[0031] The valve stem 15 is fixedly connected to the handle 17, which facilitates the rotation of the valve stem 15.

[0032] Example 2: This example further elaborates on Example 1. The large O-ring seal 35 is fixedly connected to the large disc spring 36, which is fixedly connected to the pressure plate 34. The pressure plate 34 matches the groove 210 of the large O-ring seal. The sleeve 11 passes through the pressure plate 34, and the large disc spring 36 is fitted around the sleeve 11. The large disc spring 36 provides stable elastic support for the large O-ring seal 35, allowing for automatic compression compensation after wear, ensuring its sealing effect during operation. The design of the pressure plate 34 not only matches the groove 210 of the large O-ring seal but also effectively prevents displacement of the large disc spring 36 during operation, further improving overall stability and reliability.

[0033] Example 3: This example further elaborates on Example 1 or 2. At least the uppermost small O-ring seal 33 is fixedly connected to the small disc spring 32, which is disposed within the inner groove 12 of the small O-ring seal. The small O-ring seal 33, under the pressure of the small disc spring 32, fits more tightly within the sealing groove, further enhancing the tightness and reliability of the seal.

[0034] The small disc spring 32 can also compensate for the deformation of the seal caused by temperature changes or material aging to a certain extent, thereby extending the service life of the seal and improving the overall performance of the valve.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A resilient seated gate valve for fire fighting, characterized in that, include: A switch assembly (1) includes a valve stem (15), the valve stem (15) being connected to a bearing mounting plate (14), the valve stem (15) being threadedly connected to a valve plate (16), and the valve stem (15) being fixedly connected to a sleeve (11). The valve housing assembly (2) includes a pipe (21) that is fixedly connected to a valve body (22), the valve body (22) that is fixedly connected to an upper shell (25), the upper shell (25) that is fixedly connected to a valve cover (26), and the valve cover (26) that is fixedly connected to a valve seat (27). The valve plate (16) is disposed in the area formed by the valve body (22) and the pipe (21); The valve body (22) is provided with a square groove (24) that matches the mounting plate (14), and the mounting plate (14) matches the upper shell (25); The sleeve (11) is fixedly connected to the positioning ring (13), and the valve cover (26) is provided with an annular groove (29) that matches the positioning ring (13).

2. A fire-fighting resilient sealing gate valve according to claim 1, characterized in that: It also includes a sealing assembly (3), the valve cover (26) is provided with a large O-ring groove (210), a large O-ring (35) is installed in the large O-ring groove (210), and the sleeve (11) passes through the large O-ring (35).

3. A fire-fighting resilient sealing gate valve according to claim 2, characterized in that: The large O-ring seal (35) is fixedly connected to the large disc spring (36), the large disc spring (36) is fixedly connected to the pressure plate (34), the pressure plate (34) matches the groove (210) of the large O-ring seal, the sleeve (11) passes through the pressure plate (34), and the large disc spring (36) is wrapped around the sleeve (11).

4. A fire-fighting resilient sealing gate valve according to claim 2, characterized in that: The sleeve (11) is provided with a set of small O-ring inner grooves (12), and the valve seat (27) is provided with a set of small O-ring outer grooves (28). Small O-rings (33) are installed in the small O-ring inner grooves (12) and the corresponding small O-ring outer grooves (28).

5. A fire-fighting resilient sealing gate valve according to claim 4, characterized in that: At least the uppermost small O-ring seal (33) is fixedly connected to the small disc spring (32), which is located in the inner groove (12) of the small O-ring seal.

6. A fire-fighting resilient sealing gate valve according to claim 2, characterized in that: The valve body (22) is provided with a square sealing ring mounting groove (23), and a square sealing ring (31) is installed in the square sealing ring mounting groove (23).

7. A fire-fighting resilient sealing gate valve according to claim 1, characterized in that: The valve stem (15) is fixedly connected to the handle (17).

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