Double-seal compensation type ball valve

Abstract

The utility model provides a double-seal compensation type ball valve, which relates to the technical field of special valves, and comprises a valve casing, a valve body, a handle, a valve body fixing block, valve body sealing rings and a valve body fixer, the inside of the valve casing is hollow, and the two groups of valve body sealing rings are movably arranged in a valve body sealing ring fixing groove, so that the valve body sealing rings can be replaced more conveniently; a set of valve body fixing grooves are formed in the upper end of the valve body, the valve body fixing device with a limiting block is arranged at the corresponding position of the upper end of the valve body, the valve body can be rigidly fixed, certain sealing performance can be kept after a valve shell at one end is detached, two sets of threaded holes are formed in the two sides of the valve body fixing block, and the valve body fixing device can be fixed and detached more conveniently. The valve shell at one end can still keep certain sealing performance when being detached and replaced, the valve shell can be replaced more quickly when being detached, the other end of the valve shell can also keep certain sealing performance, and the problems that the sealing performance is greatly reduced after the valve body and the gasket of the ball valve are damaged, and parts in the ball valve are not easy to replace are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of special valves, and more specifically, particularly relates to a double-seal compensated ball valve. Background Art

[0002] A ball valve, whose main structure consists of a spherical valve body and a valve housing, is a relatively common valve in life and has a very wide range of application scenarios. For example, domestic water supply valves, gas pipeline valves, liquid or gas transport vehicles, etc. When in use, the two sides of the ball valve can be directly connected to the corresponding positions through bolts. To open or close the ball valve, just turn the handle to a certain position. The ball valve is also relatively simple in structure and convenient to use.

[0003] Based on the above, although the ordinary ball valve is simple in structure and easy to use, due to its structure, when used in an environment of transporting liquids, the gaskets inside the valve body and the valve housing are more likely to be damaged, which will seriously affect the sealing performance of the ball valve, and the gaskets of the ball valve are relatively difficult to replace. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a double-seal compensated ball valve to solve the problems that the sealing performance of the existing ball valve is greatly reduced after the valve body and the gasket are damaged, and the internal parts of the ball valve are not easy to replace.

[0005] The double-seal compensated ball valve of the utility model is achieved by the following specific technical means:

[0006] A double-seal compensated ball valve includes a valve housing, a valve body, a handle, a valve body fixing block, a valve body sealing ring and a valve body fixator;

[0007] The inside of the valve housing is hollow, and the valve housing is divided into two sections and connected by bolts. Inside the segmented position of the valve housing, there is a group of valve housing sealing ring fixing grooves, and on both sides inside the valve housing, there are respectively two groups of valve body gasket grooves and two groups of valve body sealing ring fixing grooves; on one side of the two groups of valve body sealing rings, there is a support spring sleeved, and on the other side, there is a rounded corner; the rubber sealing ring is movably installed in the valve body gasket groove; the valve body gasket is sleeved on the upper end of the valve body; on both sides of the valve body fixing block, there are two groups of threaded holes, the valve body fixing block is sleeved on the upper end of the valve body, and the valve body fixing block is placed on the upper end of the valve body gasket.

[0008] Further, the two groups of valve body sealing rings are movably installed in the valve body sealing ring fixing grooves.

[0009] Further, the valve body sealing ring is movably installed in the valve housing sealing ring fixing groove at the segmented position of the valve housing.

[0010] Further, a group of valve body fixing grooves are opened at the upper end of the valve body, and at the corresponding position of the upper end of the valve body, there is a valve body fixator with a limiting block.

[0011] Furthermore, two sets of threaded holes are provided on both sides of the valve body fixing block, and two sets of threaded holes are also provided at the corresponding positions of the valve body fixator.

[0012] Furthermore, a small sealing ring is provided on the inner side of the rubber sealing ring.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting the valve body fixing block and the valve body fixator, the valve body can be rigidly fixed, so that when one end of the valve housing is removed, the valve body is rigidly fixed and will not shift, enhancing the sealing performance.

[0015] 2. By setting the valve body sealing ring, the support spring and the valve body sealing ring fixing groove, it can be replaced more quickly when one end of the valve housing is removed, and a certain sealing performance can also be ensured at the other end.

[0016] 3. By setting the rubber sealing ring, since a small sealing ring is additionally provided on the inner side of the rubber sealing ring, it can provide protection when the valve body is severely worn. After the valve body is severely worn and a gap appears, the sealing ring on the inner side of the rubber sealing ring can block it internally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the utility model.

[0018] Figure 2 is a schematic structural diagram of the whole disassembled utility model.

[0019] Figure 3 is a schematic sectional view of the utility model.

[0020] Figure 4 is a schematic diagram of the internal parts separated from each other of the utility model.

[0021] In the figure, the corresponding relationship between the part names and the drawing reference numerals is as follows:

[0022] 1. Valve housing; 2. Valve housing sealing ring; 3. Valve body; 301. Handle; 302. Valve body gasket; 4. Valve body fixing block; 5. Rubber sealing ring; 6. Valve body sealing ring; 601. Support spring; 7. Valve body sealing ring fixing groove; 8. Valve body gasket groove; 9. Valve housing sealing ring fixing groove; 10. Valve body fixator. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes in detail the embodiments of the utility model in conjunction with the drawings. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0024] Embodiment:

[0025] As shown in the appendix Figure 1 to the appendix Figure 4 as follows:

[0026] The utility model provides a double-sealed compensating ball valve, which comprises a valve housing 1, a valve body 3, a handle 301, a valve body fixing block 4, a valve body sealing ring 6 and a valve body fixator 10;

[0027] The inside of the valve housing 1 is hollow. The valve housing 1 is divided into two sections and connected by bolts. Inside the sectional position of the valve housing 1, there is a group of valve housing sealing ring fixing grooves 9, and on both sides inside the valve housing 1, there are two groups of valve body washer grooves 8 and two groups of valve body sealing ring fixing grooves 7 respectively; On one side of the two groups of valve body sealing rings 6, there is a support spring 601 sleeved, and on the other side, there is a rounded corner; The rubber sealing ring 5 is movably installed in the valve body washer groove 8; The valve body washer 302 is sleeved on the upper end of the valve body 3; On both sides of the valve body fixing block 4, there are two groups of threaded holes. The valve body fixing block 4 is sleeved on the upper end of the valve body 3, and the valve body fixing block 4 is placed on the upper end of the valve body washer 302.

[0028] Among them, as Figure 3 shown, the two groups of valve body sealing rings 6 are movably installed in the valve body sealing ring fixing grooves 7, which can facilitate the replacement of the valve body sealing rings more conveniently.

[0029] Among them, as Figure 3 shown, the valve body sealing ring 2 is movably installed in the valve housing sealing ring fixing groove 9 at the sectional position of the valve housing 1, which can prevent the valve body from leaking and is convenient for replacement at the same time.

[0030] Among them, as Figure 3 shown, a group of valve body fixing grooves are opened at the upper end of the valve body 3, and at the corresponding position at the upper end of the valve body 3, there is a valve body fixator 10 with a limiting block, which can rigidly fix the valve body 3 and still maintain a certain sealing performance after removing one end of the valve housing.

[0031] Among them, as Figure 2 shown, there are two groups of threaded holes on both sides of the valve body fixing block 4, and at the corresponding position of the valve body fixator 10, there are also two groups of threaded holes, which is more convenient for fixing and disassembling the valve body fixator 10.

[0032] Among them, as Figure 3 shown, there is a small sealing ring inside the rubber sealing ring 5, which can block the cracks generated by wear when the valve body 3 is worn severely.

[0033] The specific usage method and function of this embodiment:

[0034] In the present utility model, first, the valve body sealing ring 6, the valve body washer 302, and the valve body sealing ring 2 are installed at corresponding positions on the valve housing 1. After the installation is completed, the valve body 3 is installed into the valve housing 1. The valve body fixing block 4 and the valve body washer 302 are sleeved on the upper end of the valve body 3, and the valve body fixing block 4 is fixed with bolts. The two sections of the valve housing 1 are fixed with bolts. Finally, the two ends of the valve housing 1 are respectively connected to the corresponding positions of the pipeline. After fixing with bolts, turning the handle 301 can open and close the valve. And when the valve body 3 or the rubber sealing ring 5 is severely worn, because there is a small sealing ring for enhancing the sealing performance on the inner side of the rubber sealing ring 5, the bolts at the segmented position of the valve housing 1 can be directly removed, and half of the valve housing can be removed. The small sealing ring of the rubber sealing ring 5 in the other half of the valve body will be sunken inward due to suction, which can block the gap and enhance the sealing performance. After replacing the valve body washer 302 and the valve body sealing ring 6, the bolts and the valve housing can be reinstalled.

[0035] Details not described in the present utility model are all well-known technologies to those skilled in the art.

Claims

1. A double seal compensation ball valve, characterized in that: It comprises a valve housing (1), a valve body (3), a handle (301), a valve body fixing block (4), a rubber sealing ring (5), a valve body sealing ring (6) and a valve body fixing device (10); The valve housing (1) is hollow inside. The valve housing (1) is divided into two sections and connected by bolts. A group of valve housing sealing ring fixing grooves (9) are provided inside the segmented position of the valve housing (1), and two groups of valve body gasket grooves (8) and two groups of valve body sealing ring fixing grooves (7) are respectively opened on both sides of the valve housing (1); one side of the two groups of valve body sealing rings (6) is sleeved with a supporting spring (601), and the other side has a rounded corner; the rubber sealing ring (5) is movably installed in the valve body gasket groove (8); the valve body gasket (302) is sleeved on the upper end of the valve body (3); two groups of threaded holes are provided on both sides of the valve body fixing block (4), the valve body fixing block (4) is sleeved on the upper end of the valve body (3), and the valve body fixing block (4) is placed on the upper end of the valve body gasket (302).

2. A double seal compensating ball valve as claimed in claim 1, characterized in that: The two groups of valve body sealing rings (6) are movably mounted in the valve body sealing ring fixing groove (7).

3. A double seal compensating ball valve as claimed in claim 1, characterized in that: A valve body sealing ring (2) is movably installed in the valve housing sealing ring fixing groove (9) at the segmented position of the valve housing (1).

4. A double seal compensating ball valve as claimed in claim 1, characterized in that: A group of valve body fixing grooves are provided at the upper end of the valve body (3), and a valve body fixer (10) with a limit block is provided at a corresponding position of the upper end of the valve body (3).

5. A double seal compensating ball valve as claimed in claim 1, characterized in that: Two groups of threaded holes are provided on both sides of the valve body fixing block (4), and two groups of threaded holes are also provided at corresponding positions of the valve body fixing device (10).

6. A double seal compensating ball valve as claimed in claim 1, characterized in that: A circle of small sealing rings is arranged inside the rubber sealing ring (5).

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