CN220396810U

CN220396810U - Ball valve

Info

Publication number: CN220396810U
Application number: CN202321896362.4U
Authority: CN
Inventors: 戴豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2024-01-26
Anticipated expiration: 2033-07-18

Abstract

The utility model provides a ball valve, and belongs to the technical field of ball valves. It has solved the relatively poor problem of current ball valve leakproofness. The ball valve comprises a valve body, a valve core, a valve seat, a valve cap, a lock nut and a joint, wherein the valve cap is fixedly connected with the valve body, the valve cap tightly presses the valve core in the valve body through the valve seat, the ball valve further comprises a sealing element, the valve cap is integrally positioned in the valve body, the joint is fixedly connected with the valve body through the lock nut, and the sealing element is embedded and sealed among the valve body, the valve cap and the joint. The ball valve has the advantage of good sealing performance.

Description

Ball valve

Technical Field

The utility model belongs to the technical field of ball valves, and relates to a ball valve.

Background

The ball valve is a valve which is driven by a valve rod and rotates around the axis of the ball valve. The ball valve can be used for adjusting and controlling fluid and can be divided into a pneumatic ball valve, an electric ball valve and a manual ball valve.

The prior ball valve, for example, chinese patent literature discloses a valve [ patent number: 201820591035.0; application publication number: CN208348555U ], which comprises a valve body, a medium flow channel formed in the valve body, and a valve core arranged in the medium flow channel, wherein the water inlet end and/or the water outlet end of the valve body is connected with a plastic pipe joint through a lock nut; the plastic pipe joint is sleeved with a metal protective sleeve.

The valve of this kind of structure, the valve cap links firmly through the screw thread with the valve body, and the valve cap compresses tightly the disk seat on the case, and the outer end protrusion setting of valve cap is in the valve body, and the outer end of valve cap links firmly with the plastics coupling through lock nut. Namely, the valve with the structure is characterized in that the waterproof adhesive tape is embedded in the middle when the valve cap is connected with the valve body through threads, so that the sealing performance is relatively poor, and the risk of certain water leakage exists.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a ball valve, which solves the technical problem of improving the sealing performance of the ball valve.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a ball valve, includes valve body, case, disk seat, valve bonnet, lock nut and connects, the valve bonnet links firmly with the valve body, the valve bonnet compresses tightly the case in the valve body through the disk seat, its characterized in that, the ball valve still includes sealing member, the valve bonnet is whole to be located the valve body, connect and link firmly with the valve body through lock nut, sealing member embedding seals between valve body, valve bonnet and the joint.

This valve bonnet of ball valve wholly is arranged in the valve body, and sealing member embedding seals between valve body, valve bonnet and joint, seals between valve body and the valve bonnet promptly, improves the leakproofness between valve body and the valve bonnet to improve the leakproofness of ball valve. The sealing element seals the gap between the valve body and the valve cap and the gap between the valve cap and the joint at the same time, and one sealing element realizes the sealing of a plurality of positions.

In the ball valve, a first annular step groove is formed in the circumferential edge of the inner end of the joint, and the sealing piece is partially embedded and attached to the groove wall of the first step groove. The sealing element can be positioned by the arrangement of the first step groove, so that the sealing element cannot deviate from a sealing position, the sealing effect of the sealing element is improved, and the sealing performance of the ball valve is improved.

In the ball valve, the first stepped groove comprises an annular stepped surface which is axially arranged along the joint, the stepped surface is obliquely and inwardly arranged along the direction of the valve core towards the valve cap, and the sealing piece is attached to the stepped surface. The step surface of this kind of structure makes the sealing member compress tightly the back of deformation, can be better laminate with the step surface, further improves the leakproofness of sealing member to improve the leakproofness of ball valve.

In the ball valve, a second annular step groove is formed in the circumferential edge of the outer end of the valve cap, and the sealing piece is partially embedded and attached to the groove wall of the second step groove. The sealing element can be positioned by the arrangement of the second step groove, so that the sealing element cannot deviate from a sealing position, the sealing effect of the sealing element is improved, and the sealing performance of the ball valve is improved.

In the ball valve, the inner side of the outer end of the valve body is provided with an inclined annular abutting surface, and the sealing piece is attached to the abutting surface. The contact surface between the sealing element and the valve body is increased by the arrangement of the abutting surface, so that the sealing element can be better attached to the abutting surface, the sealing effect between the sealing element and the valve body is improved, and the sealing performance of the ball valve is improved.

In the ball valve, a sealing ring is arranged between the valve cap and the valve body. The sealing effect between the valve cap and the valve body is improved due to the arrangement of the sealing ring, so that the sealing performance of the ball valve is improved.

Compared with the prior art, the ball valve provided by the utility model has the following advantages:

1. this valve bonnet of ball valve wholly is arranged in the valve body, and sealing member embedding seals between valve body, valve bonnet and joint, seals between valve body and the valve bonnet promptly, improves the leakproofness between valve body and the valve bonnet to improve the leakproofness of ball valve.

2. The sealing element of the ball valve forms a seal between the valve body and the valve cap, forms a seal between the valve body and the joint, forms a seal between the valve cap and the joint, and realizes sealing at a plurality of positions.

Drawings

Fig. 1 is a cross-sectional view of the whole structure of the ball valve.

Fig. 2 is an enlarged view of the area of fig. 1A of the present ball valve.

In the figure, 1, a valve body; 2. a valve core; 3. a valve seat; 4. a valve cap; 5. a lock nut; 6. a joint; 7. a seal; 8. a first step groove; 81. a step surface; 9. a second step groove; 10. an abutment surface; 11. and (3) sealing rings.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, the ball valve comprises a valve body 1, a valve core 2, a valve seat 3, a valve cap 4, a lock nut 5, a joint 6, a sealing element 7 and a sealing ring 11.

The valve cap 4 is fixedly connected with the valve body 1, the valve cap 4 compresses the valve core 2 in the valve body 1 through the valve seat 3, the valve cap 4 is integrally positioned in the valve body 1, and a sealing ring 11 is arranged between the valve cap 4 and the valve body 1. The joint 6 is fixedly connected with the valve body 1 through the lock nut 5, and the sealing element 7 is embedded and sealed among the valve body 1, the valve cap 4 and the joint 6.

Specifically, as shown in fig. 2, a first annular step groove 8 is formed at the circumferential edge of the inner end of the joint 6, a second annular step groove 9 is formed at the circumferential edge of the outer end of the valve cap 4, an inclined annular abutting surface 10 is formed on the inner side of the outer end of the valve body 1, a sealing element 7 is partially positioned in the first step groove 8 and is attached to the groove wall of the first step groove 8, a sealing element 7 is partially positioned in the second step groove 9 and is attached to the groove wall of the second step groove 9, and a part of the sealing element 7 is abutted to the abutting surface 10. The first stepped groove 8 comprises an annular stepped surface 81 axially arranged along the joint 6, the stepped surface 81 is obliquely inwards arranged along the direction of the valve core 2 towards the valve cap 4, and the sealing piece 7 is attached to the stepped surface 81.

When the valve cap 4 is installed, the valve cap 4 is fixed in the valve body 1 by rotating the valve cap 4, then the sealing element 7 is sleeved on the joint 6 and put into the valve body 1, and then the valve cap is locked by the locking nut 5.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms of the valve body 1, the valve spool 2, the valve seat 3, the bonnet 4, the lock nut 5, the joint 6, the seal 7, the first stepped groove 8, the stepped surface 81, the second stepped groove 9, the abutment surface 10, the seal ring 11, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a ball valve, includes valve body (1), case (2), disk seat (3), valve cap (4), lock nut (5) and connects (6), valve cap (4) link firmly with valve body (1), valve cap (4) compress tightly case (2) in valve body (1) through disk seat (3), its characterized in that, the ball valve still includes sealing member (7), valve cap (4) wholly are located valve body (1), connect (6) to link firmly with valve body (1) through lock nut (5), sealing member (7) embedding seals between valve body (1), valve cap (4) and joint (6).

2. A ball valve according to claim 1, characterized in that the circumferential edge of the inner end of the joint (6) is provided with a first annular step groove (8), and the sealing element (7) is partly embedded and attached to the groove wall of the first step groove (8).

3. A ball valve according to claim 2, characterized in that the first stepped groove (8) comprises an annular stepped surface (81) arranged along the axial direction of the joint (6), the stepped surface (81) is obliquely arranged inwards and obliquely along the direction of the valve core (2) towards the valve cap (4), and the sealing element (7) is attached to the stepped surface (81).

4. A ball valve according to claim 1, 2 or 3, characterized in that the peripheral edge of the outer end of the bonnet (4) is provided with a second stepped groove (9) in the shape of a ring, and the sealing element (7) is partly embedded and attached to the groove wall of the second stepped groove (9).

5. A ball valve according to claim 1, 2 or 3, characterized in that the inner side of the outer end of the valve body (1) has an obliquely arranged and annular abutment surface (10), the sealing element (7) being fitted on the abutment surface (10).

6. A ball valve according to claim 1, 2 or 3, characterized in that a sealing ring (11) is arranged between the bonnet (4) and the valve body (1).