A booster pump valve

Abstract

This utility model relates to a booster pump valve, belonging to the technical field of booster pump valves. It includes a valve body, a tower spring, and a valve stem. The valve body has an inner connecting part at one end and an outer connecting part at the other end. A baffle for defining a sealing ring is provided on the outer connecting part. The sealing ring and the baffle are detachably connected. The valve stem has a sealing plate that is sealed to the sealing ring. This application effectively solves the problems of the inability to replace the sealing ring and the reduced flow rate caused by the sealing ring in the prior art by detachably connecting the sealing ring to the baffle of the valve body. The valve stem drives the sealing plate to reciprocate, closing or opening with the sealing ring. Closing achieves a sealing connection, while opening ensures sufficient flow. The detachable connection between the sealing ring and the baffle facilitates the replacement of the sealing ring. The cooperation of the convex ring and the limiting groove further enhances the sealing performance of the connection between the valve body and the valve stem.

Description

Technical Field

[0001] This utility model relates to a booster pump valve and belongs to the technical field of booster pump valves. Background Technology

[0002] Existing valves use valve bodies with upper and lower external thread connections, and the sealing rings are integrally vulcanized and embedded inside the valve body. The valve body is scrapped when the sealing rings fail, and the sealing rings cannot be directly replaced, leading to increased production costs. Some existing valves also add sealing rings to the valve stem, but the opening space between the sealing rings on the valve stem and the valve body is limited, resulting in reduced flow rate. Therefore, developing a booster pump valve is crucial. Utility Model Content

[0003] This utility model addresses the shortcomings of the prior art by providing a booster pump valve. The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A booster pump valve includes a valve body, a tower spring, and a valve stem. The valve body has an inner connecting part at one end and an outer connecting part at the other end. The outer connecting part is provided with a baffle for defining a sealing ring. The sealing ring is detachably connected to the baffle. The valve stem is provided with a sealing plate that is sealed to the sealing ring.

[0004] Furthermore, a limiting groove for defining the sealing ring is provided between the baffle and the outer connecting part.

[0005] Furthermore, the sealing ring has a protruding ring inside that engages with the limiting groove.

[0006] Furthermore, the valve housing is provided with a through hole for the reciprocating movement of the valve stem.

[0007] Furthermore, the valve housing is provided with a limiting platform for limiting the tower spring.

[0008] Furthermore, the valve stem is provided with an internal thread for connection with a fixing nut.

[0009] Furthermore, the cross-section of the valve housing is hexagonal.

[0010] Furthermore, the sealing ring extends along the baffle towards the sealing plate, and the baffle is located inside the sealing ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This application effectively solves the problems of the inability to replace the sealing ring and the reduced flow rate caused by the sealing ring in the prior art by detachably connecting the sealing ring and the baffle of the valve body.

[0012] 2. The valve stem drives the sealing plate to move back and forth to close or open with the sealing ring. Closing achieves a sealing connection, while opening ensures sufficient flow. The detachable connection between the sealing ring and the baffle facilitates the replacement of the sealing ring.

[0013] 3. The combination of the convex ring and the limiting groove effectively enhances the sealing performance of the valve body and valve stem connection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is the main structural view of the present invention.

[0016] Figure 3 for Figure 2 A-direction cross-section view.

[0017] Figure 4 This is a schematic diagram of the valve shell structure of this utility model.

[0018] Figure 5 This is a cross-sectional view of the structure of this utility model.

[0019] In the diagram, 1 is the valve body; 2 is the sealing ring; 3 is the valve stem; 4 is the tower spring; 5 is the fixing nut; 11 is the inner connecting part; 12 is the outer connecting part; 13 is the baffle; 14 is the limiting groove; 15 is the through hole; 16 is the limiting platform; 21 is the convex ring; 31 is the sealing plate; and 32 is the internal thread. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] like Figures 1-5 As shown, a booster pump valve includes a valve housing 1, a tower spring 4, and a valve stem 3. The valve housing 1 has an inner connecting portion 11 at one end and an outer connecting portion 12 at the other end. A baffle 13 for limiting a sealing ring 2 is provided on the outer connecting portion 12. The sealing ring 2 is detachably connected to the baffle 13. The valve stem 3 has a sealing plate 31 that is sealed to the sealing ring 2. In use, the sealing ring 2 is snapped onto the baffle 13 and the outer connecting portion 12. The valve stem 3 drives the sealing plate 31 to reciprocate, closing or opening with the sealing ring 2. Closing achieves a sealing connection, while opening ensures sufficient flow. The detachable connection between the sealing ring 2 and the baffle 13 facilitates the replacement of the sealing ring 2.

[0022] A limiting groove 14 is provided between the baffle 13 and the outer connecting part 12 to limit the sealing ring 2. The limiting groove 14 enhances the sealing performance of the connection between the valve body 1 and the valve stem 3.

[0023] The sealing ring 2 has a protruding ring 21 inside that engages with the limiting groove 14. The cooperation between the protruding ring 21 and the limiting groove 14 effectively enhances the sealing performance of the connection between the valve body 1 and the valve stem 3.

[0024] The valve housing 1 is provided with a through hole 15 for the reciprocating movement of the valve stem 3.

[0025] The valve housing 1 is provided with a limiting platform 16 for limiting the tower spring 4. The limiting platform 16 is used to limit the large-diameter end of the tower spring 4.

[0026] The valve stem 3 has an internal thread 32 that connects to the fixing nut 5. The nut limits the small-diameter end of the tower spring 4.

[0027] The valve housing 1 has a hexagonal cross-section.

[0028] The sealing ring 2 extends along the baffle 13 toward the sealing plate 31, and the baffle 13 is located inside the sealing ring 2. The left and right length of the sealing ring 2 is greater than the left and right length of the baffle 13. When the sealing ring 2 is severely worn and the free end face of the sealing ring 2 is flush with the baffle 13, the sealing ring 2 needs to be replaced.

[0029] This application effectively solves the problems of the inability to replace the sealing ring 2 and the reduced flow rate caused by the sealing ring 2 in the prior art by detachably connecting the sealing ring 2 to the baffle 13 of the valve body 1; the valve stem 3 drives the sealing plate 31 to move back and forth to close or open with the sealing ring 2, and the closure achieves a sealing connection, while the opening ensures sufficient flow; the detachable connection between the sealing ring 2 and the baffle 13 facilitates the replacement of the sealing ring 2; the cooperation between the convex ring 21 and the limiting groove 14 further enhances the sealing performance of the connection between the valve body 1 and the valve stem 3.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A booster pump valve, comprising a valve housing (1), a tower spring (4), and a valve stem (3), characterized in that: The valve body (1) has an inner connection part (11) at one end and an outer connection part (12) at the other end. The outer connection part (12) is provided with a baffle (13) for limiting the sealing ring (2). The sealing ring (2) and the baffle (13) are detachably connected. The valve stem (3) is provided with a sealing plate (31) that is sealed to the sealing ring (2).

2. The booster pump valve according to claim 1, characterized in that: A limiting groove (14) for limiting the sealing ring (2) is provided between the baffle (13) and the outer connecting part (12).

3. The booster pump valve according to claim 2, characterized in that: The sealing ring (2) has a protruding ring (21) inside that engages with the limiting groove (14).

4. The booster pump valve according to any one of claims 1-3, characterized in that: The valve housing (1) is provided with a through hole (15) for the reciprocating movement of the valve stem (3).

5. The booster pump valve according to any one of claims 1-3, characterized in that: The valve housing (1) is provided with a limiting platform (16) for limiting the tower spring (4).

6. The booster pump valve according to any one of claims 1-3, characterized in that: The valve stem (3) has an internal thread (32) that connects to the fixing nut (5).

7. The booster pump valve according to any one of claims 1-3, characterized in that: The valve body (1) has a hexagonal cross-section.

8. The booster pump valve according to any one of claims 1-3, characterized in that: The sealing ring (2) extends along the baffle (13) toward the sealing plate (31), and the baffle (13) is located inside the sealing ring (2).

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