Ball valve with joint leakproof structure
By designing joint leakage-proof structure and double sealing components in the ball valve, the problems of poor sealing between the ball valve and docking pipe and insufficient sealing of the single layer of the valve ball are solved, achieving higher sealing and use effects.
Patent Information
- Application Number
- CN202421357083.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The existing ball valves have poor sealing properties when they dock with the docking pipe, which may cause leakage, and the single-layer sealing of the valve ball is poor, which affects use.
A ball valve with a joint leakage prevention structure is designed, and a double seal structure is formed by installing a first sealing ring and a joint sealing assembly on both sides of the valve assembly, and installing a first and a second valve sealing assembly on the inner wall of the valve housing.
It effectively improves the sealing of the ball valve and the docking pipe, prevents joint leakage, and improves the sealing of the ball valve through a double sealing structure.
Smart Images
Figure CN222633881U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valve equipment, in particular to a ball valve with a joint anti-leakage structure. Background Art
[0002] Valve equipment is a device used to control the flow of fluids (liquids, gases, powders, etc.), usually composed of valve bodies, valve covers, valve cores, valve seats, seals, etc. They are widely used in industries, construction, energy, chemical industry, water treatment, etc., with a variety of valves of different types and functions to meet different needs and process requirements.
[0003] A ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. It only needs to rotate 90° and a very small torque to close tightly. Ball valves are most suitable for use as switches and cut-off valves.
[0004] In the process of realizing the present utility model, the inventors found that the prior art had the following problems: 1. When some existing common ball valves are connected to the docking pipe, they are generally connected directly through flanges, which may have poor sealing and may cause leakage; 2. Some existing common ball valves generally use a single-layer seal for the valve ball, which may have poor sealing and may affect the use of the ball valve. Utility Model Content
[0005] The purpose of the utility model is to provide a ball valve with a joint anti-leakage structure to solve the problems of poor joint sealing of some common ball valves and single-layer sealing of valve balls by common ball valves mentioned in the above background technology. To achieve the above purpose, the utility model provides the following technical solution: a ball valve with a joint anti-leakage structure comprises a valve assembly, both sides of the valve assembly are equipped with a first sealing ring and a joint sealing assembly, and the inner wall of the valve assembly is equipped with a first valve sealing assembly and a second valve sealing assembly.
[0006] The valve assembly comprises a valve housing, a rotating rod is installed on the top of the valve housing through a sealing bearing, a valve ball is installed on the bottom of the rotating rod, and a flange is installed on the outer wall of the valve housing.
[0007] The joint sealing assembly comprises a first spring installed on one side of the inner wall of the flange, a sliding ring is installed on one side of the first spring, and a second sealing ring is installed on one side of the sliding ring.
[0008] The first valve sealing assembly comprises a fixing ring installed with the inner wall of the valve housing, a plurality of second springs are installed on one side of the fixing ring, a connecting ring is installed on one side of the second spring, and a third sealing ring is installed on the inner wall of the connecting ring.
[0009] The second valve sealing assembly comprises a mounting ring mounted on the inner wall of the valve housing, and a fourth sealing ring is mounted on one side of the mounting ring.
[0010] Further preferably, the first sealing ring is installed at both ends of the valve housing, and the external dimension structure of the first sealing ring is consistent with the internal dimension structure of the flange.
[0011] Further preferably, an annular groove having an internal dimension structure consistent with the external dimension structure of the sliding ring is provided on one side of the flange, and a plurality of first springs are provided on one side of the sliding ring, and the plurality of first springs are distributed in a ring shape with the horizontal center line of the sliding ring as the origin, and at the same time, the flange and the joint sealing assembly are symmetrically distributed about the vertical center line of the valve housing.
[0012] Further preferably, the plurality of second springs are distributed in a ring shape with the horizontal center line of the fixing ring as the origin, and the external dimension structure of the connecting ring is consistent with the internal dimension structure of the valve housing, and the connecting ring forms a sealing structure with the valve ball through a third sealing ring.
[0013] Further preferably, the mounting ring forms a sealing structure with the valve ball through a fourth sealing ring.
[0014] Further preferably, the first valve sealing component and the second valve sealing component are symmetrically distributed about a vertical center line of the valve ball.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] In the utility model, the ball valve is connected to the docking pipe through the first sealing ring and the joint sealing assembly. The first sealing ring is tightly attached to one end of the pipe of the docking pipe. The second sealing ring and the sliding ring are subjected to the elastic force of the first spring, so that the second sealing ring is tightly attached to the flange of the docking pipe, which can improve the sealing performance of the ball valve flange and the docking pipe flange after docking, and prevent leakage of the joint.
[0017] In the utility model, through the first valve sealing component and the second valve sealing component, when the ball valve is in use, the fourth sealing ring is in close contact with the surface of the valve ball, the third sealing ring and the connecting ring are subjected to the elastic force of the second spring, so that the third sealing ring is in close contact with the surface of the valve ball, and the first valve sealing component and the second valve sealing component provide double sealing on both sides of the valve ball, thereby improving the sealing performance of the ball valve when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the full cross-section structure of the utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the valve assembly of the utility model;
[0021] Figure 4 This is a schematic diagram of the full cross-section structure of the valve assembly of the utility model;
[0022] Figure 5 This is a schematic diagram of the structure of the joint sealing assembly of the utility model;
[0023] Figure 6 This is a schematic diagram of the structure of the first valve sealing assembly of the utility model;
[0024] Figure 7 This is a schematic diagram of the structure of the second valve sealing component of the utility model.
[0025] In the figure: 1. valve assembly; 101. valve housing; 102. rotating rod; 103. valve ball; 104. flange; 2. first sealing ring; 3. joint sealing assembly; 301. first spring; 302. sliding ring; 303. second sealing ring; 4. first valve sealing assembly; 401. fixing ring; 402. second spring; 403. connecting ring; 404. third sealing ring; 5. second valve sealing assembly; 501. mounting ring; 502. fourth sealing ring. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figures 1 to 7 The utility model provides a technical solution: a ball valve with a joint anti-leakage structure, including a valve assembly 1, a first sealing ring 2 and a joint sealing assembly 3 are installed on both sides of the valve assembly 1, and a first valve sealing assembly 4 and a second valve sealing assembly 5 are installed on the inner wall of the valve assembly 1.
[0028] The valve assembly 1 comprises a valve housing 101 , a rotating rod 102 is installed on the top of the valve housing 101 through a sealing bearing, a valve ball 103 is installed on the bottom of the rotating rod 102 , and a flange 104 is installed on the outer wall of the valve housing 101 .
[0029] The joint sealing assembly 3 includes a first spring 301 installed on one side of the inner wall of the flange 104 , a sliding ring 302 is installed on one side of the first spring 301 , and a second sealing ring 303 is installed on one side of the sliding ring 302 .
[0030] The first valve sealing assembly 4 includes a fixing ring 401 installed on the inner wall of the valve housing 101 , a plurality of second springs 402 are installed on one side of the fixing ring 401 , a connecting ring 403 is installed on one side of the second spring 402 , and a third sealing ring 404 is installed on the inner wall of the connecting ring 403 .
[0031] The second valve sealing assembly 5 comprises a mounting ring 501 mounted on the inner wall of the valve housing 101 , and a fourth sealing ring 502 is mounted on one side of the mounting ring 501 .
[0032] In this embodiment, Figure 1 As shown, the first sealing ring 2 is installed at both ends of the valve housing 101, and the external dimension structure of the first sealing ring 2 is consistent with the internal dimension structure of the flange 104; when the flange 104 is docked with the flange 104 of the docking pipe, the first sealing ring 2 can play a sealing role to prevent leakage from the joint when using the ball valve.
[0033] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an annular groove whose internal dimension structure is consistent with the external dimension structure of the sliding ring 302 is opened on one side of the flange 104, and a plurality of first springs 301 are provided on one side of the sliding ring 302, and the plurality of first springs 301 are distributed in an annular shape with the horizontal center line of the sliding ring 302 as the origin, and the flange 104 and the joint sealing assembly 3 are symmetrically distributed about the vertical center line of the valve housing 101; when the flange 104 is docked with the flange 104 of the docking pipe, the sliding ring 302 is subjected to the elastic force of the first spring 301, and the sliding ring 302 slides in the annular groove, so that the second sealing ring 303 is tightly attached to the flange 104 of the docking pipe, and when the ball valve is used, leakage of the joint is prevented.
[0034] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, a plurality of second springs 402 are distributed in a ring shape with the horizontal center line of the fixing ring 401 as the origin, and the external dimension structure of the connecting ring 403 is consistent with the internal dimension structure of the valve housing 101, and the connecting ring 403 forms a sealing structure with the valve ball 103 through the third sealing ring 404; the connecting ring 403 is subjected to the elastic force of the second spring 402, so that the third sealing ring 404 is closely attached to the surface of the valve ball 103, which can improve the sealing performance of the ball valve.
[0035] In this embodiment, Figure 2 , Figure 4 and Figure 7 As shown, the mounting ring 501 forms a sealing structure with the valve ball 103 through the fourth sealing ring 502; the fourth sealing ring 502 is in close contact with the surface of the valve ball 103, which can improve the sealing performance of the ball valve.
[0036] In this embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the first valve sealing assembly 4 and the second valve sealing assembly 5 are symmetrically distributed about the vertical center line of the valve ball 103; the first valve sealing assembly 4 and the second valve sealing assembly 5 can provide double sealing on both sides of the valve ball 103, which can improve the sealing performance of the ball valve when in use.
[0037] The use method and advantages of the utility model: When the ball valve with a joint anti-leakage structure is used, the working process is as follows:
[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, firstly, the ball valve flange 104 is connected to the flange 104 of the docking pipe by screws, the first sealing ring 2 is tightly attached to one end of the docking pipe, the first spring 301 is compressed, the second sealing ring 303 and the sliding ring 302 are subjected to the elastic force of the first spring 301, the second sealing ring 303 is tightly attached to the flange 104 of the docking pipe, when the ball valve is used, the handle on the rotating rod 102 is rotated to drive the valve ball 103 to rotate, and the valve can be opened and closed, the fourth sealing ring 502 is tightly attached to the surface of the valve ball 103, the third sealing ring 404 and the connecting ring 403 are subjected to the elastic force of the second spring 402, so that the third sealing ring 404 is tightly attached to the surface of the valve ball 103, thereby improving the sealing performance of the ball valve.
[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A ball valve with a joint anti-leakage structure, comprising a valve assembly (1), characterized in that: A first sealing ring (2) and a joint sealing assembly (3) are installed on both sides of the valve assembly (1), and a first valve sealing assembly (4) and a second valve sealing assembly (5) are installed on the inner wall of the valve assembly (1); The valve assembly (1) comprises a valve housing (101), a rotating rod (102) is installed on the top of the valve housing (101) through a sealing bearing, a valve ball (103) is installed on the bottom of the rotating rod (102), and a flange (104) is installed on the outer wall of the valve housing (101); The joint sealing assembly (3) comprises a first spring (301) installed on one side of the inner wall of the flange (104), a sliding ring (302) is installed on one side of the first spring (301), and a second sealing ring (303) is installed on one side of the sliding ring (302); The first valve sealing assembly (4) comprises a fixing ring (401) mounted on the inner wall of the valve housing (101), a plurality of second springs (402) being mounted on one side of the fixing ring (401), a connecting ring (403) being mounted on one side of the second spring (402), and a third sealing ring (404) being mounted on the inner wall of the connecting ring (403); The second valve sealing assembly (5) comprises a mounting ring (501) mounted on the inner wall of the valve housing (101), and a fourth sealing ring (502) is mounted on one side of the mounting ring (501).
2. The ball valve with a joint anti-leakage structure according to claim 1, characterized in that: The first sealing ring (2) is installed at both ends of the valve housing (101), and the external dimension structure of the first sealing ring (2) is consistent with the internal dimension structure of the flange (104).
3. The ball valve with a joint anti-leakage structure according to claim 1, characterized in that: One side of the flange (104) is provided with an annular groove whose internal dimension structure is consistent with the external dimension structure of the sliding ring (302), and one side of the sliding ring (302) is provided with a plurality of first springs (301), and the plurality of first springs (301) are distributed in an annular shape with the horizontal center line of the sliding ring (302) as the origin, and are symmetrically distributed between the flange (104) and the joint sealing assembly (3) about the vertical center line of the valve housing (101).
4. The ball valve with a joint anti-leakage structure according to claim 1, characterized in that: The plurality of second springs (402) are distributed in a ring shape with the horizontal center line of the fixing ring (401) as the origin, and the external dimension structure of the connecting ring (403) is consistent with the internal dimension structure of the valve housing (101), and the connecting ring (403) forms a sealing structure with the valve ball (103) through the third sealing ring (404).
5. The ball valve with a joint anti-leakage structure according to claim 1, characterized in that: The mounting ring (501) forms a sealing structure with the valve ball (103) via a fourth sealing ring (502).
6. The ball valve with a joint anti-leakage structure according to claim 1, characterized in that: The first valve sealing component (4) and the second valve sealing component (5) are symmetrically arranged about the vertical center line of the valve ball (103).