CN220706470U

CN220706470U - Ball valve

Info

Publication number: CN220706470U
Application number: CN202322512226.7U
Authority: CN
Inventors: 喻旭; 郭兵; 邱静怡; 陈智勇; 包忠韩
Original assignee: Ad Co ltd
Current assignee: Ad Co ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2024-04-02
Anticipated expiration: 2033-09-13

Abstract

The utility model provides a ball valve, and belongs to the technical field of ball valves. The ball valve solves the problems that a sealing ring in the existing ball valve is easy to wear and the rotation resistance of a ball core is large. The ball valve comprises a valve body and a ball shell arranged in the valve body, wherein the ball shell is provided with a water inlet and a water outlet, a ball core is arranged in the ball shell, sealing rings are arranged on the inner wall of the ball shell and correspond to the water inlet and the water outlet, the sealing rings are integrally formed with the ball shell, the outer wall of the ball core is tightly attached to the sealing rings, and a gap is reserved between the outer wall of the ball core and the inner wall of the ball shell. The ball valve can reduce the abrasion of the sealing ring and the rotation resistance of the ball core, so that the ball valve is smoother and more stable to use.

Description

Ball valve

Technical Field

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

Background

Ball valves generally comprise a ball core, a ball rod, a sealing gasket and a shell, wherein the ball rod is driven by a handle, the ball rod drives the ball core to realize a rotary opening function, and the handle, the ball rod, the ball core and all connecting parts are continuously worn through continuous opening and closing, so that the ball rod is not opened in place, and water is leaked after closing.

For example, chinese patent net discloses a continuous injection integral plastic ball valve tap [ authorized bulletin number: CN201269338Y comprises a shell and a spherical valve core, wherein the spherical valve core is integrally formed with a connecting rod to form an integral connecting rod valve core, a spherical space as large as the spherical valve core is arranged in the shell, the spherical valve core is arranged in the spherical space, the shell is provided with a water inlet, a water outlet nozzle and a connecting rod seat, and an elastic sealing layer is arranged outside the integral connecting rod valve core.

The ball valve has the following defects: in the rotating process of the ball core, the elastic sealing layer is driven to synchronously rotate, and the elastic sealing layer rubs with the port ridge line of the shell, so that the elastic sealing layer is easy to wear and even break, the ball valve is easy to have poor sealing and water leakage, and the elastic sealing layer is tightly attached to the inner wall of the shell, so that the rotating resistance of the ball core is very large, and the rotating operation of the ball core is not facilitated.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a ball valve, which aims to solve the technical problems: how to solve the problems of easy abrasion of the sealing ring and large rotation resistance of the ball core.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a ball valve, includes the valve body and sets up the spherical shell in the valve body, the spherical shell has water inlet and delivery port, be provided with the ball core in the spherical shell, the position that corresponds water inlet and delivery port on the inner wall of spherical shell all is provided with the sealing washer, its characterized in that, sealing washer and spherical shell integrated into one piece, the outer wall and the sealing washer of ball core are hugged closely to have the clearance between the outer wall of ball core and the inner wall of spherical shell.

The sealing ring and the spherical shell in the structure are integrally formed, the sealing ring and the spherical shell are welded together by the existing melting process in the process of processing and forming, at the moment, the sealing ring is partially embedded into the shell, when the spherical core rotates, the sealing ring is motionless, the sealing ring is always in contact with the outer wall of the spherical core, the outer wall of the spherical core is spherical, the displacement of the sealing ring relative to the spherical core in the rotating process of the ball valve is avoided, the sealing ring is more stable in arrangement, the abrasion of the sealing ring after the displacement relative to the spherical core is avoided, the purpose of reducing the abrasion of the sealing ring is achieved, the sealing performance of the ball valve is obviously improved, meanwhile, a gap is reserved between the outer wall of the spherical core and the inner wall of the spherical shell, the friction force between the spherical core and the spherical shell is eliminated, the rotating resistance of the spherical core is smaller, the rotating is smoother, and the rotating hand feeling of the ball valve is obviously improved.

In the ball valve, the ball shell comprises two half shells which are respectively injection molded, two opposite ends of the two half shells are connected, and each sealing ring is integrally molded with one of the half shells.

Through the setting of this structure, during the manufacturing, injection moulding one half shell and sealing washer earlier, then place the ball core in one of them half shell, then another half shell of injection moulding, two half shell opposite both ends are connected at injection moulding in-process, and two half shells wrap up the ball core in the spherical shell.

In the ball valve, one end of one half shell is provided with an annular limiting stop edge, and one end of the other half shell is provided with an annular positioning ring groove, and the limiting stop edge is embedded into the positioning ring groove.

Through the setting of this structure, because two half shells are in order to guarantee its joint strength, consequently adopt die casting's mode, through the cooperation of locating ring groove and spacing fender edge, can produce the effect of mutual compaction for the connection between two half shells is more firm.

In the ball valve, one end of one half shell is provided with a plurality of circular arc-shaped positioning ring grooves distributed along the circumferential direction, one end of the other half shell is arranged in one-to-one correspondence with the positioning ring grooves and is provided with cylindrical bayonet locks, and the bayonet locks are embedded in the positioning ring grooves.

Through the setting of this structure for the clamping pin is compressed tightly to the holding ring inslot of one of them half shell to the compressive force that produces when another half shell is moulded plastics, makes to combine firm, further improves the firmness that two half shells connect.

In the ball valve, the water inlet is formed in one half shell, and the water outlet is formed in the other half shell.

The arrangement of the structure ensures that the structures of the two half shells are more symmetrical, so that the ball core of the ball valve is smoother and more stable during rotation.

Compared with the prior art, the ball valve has the following advantages: the sealing washer and the spherical shell integrated into one piece in this structure, when the ball core rotates, motionless when the sealing washer, the sealing washer is the outer wall contact with the ball core all the time moreover, the outer wall of ball core is the sphere, showing the wearing and tearing that have reduced the sealing washer for the sealing performance of ball valve obtains showing and improves, in addition, has the clearance between the outer wall of ball core and the inner wall of spherical shell, has reduced the frictional force between ball core and the spherical shell, makes the rotation of ball core more smooth and easy, and pivoted feel is obviously improved.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present utility model.

Fig. 2 is a partial perspective view of the present utility model.

Fig. 3 is a schematic perspective view of one of the half shells of the present utility model.

Fig. 4 is a schematic perspective view of another half shell of the present utility model.

In the figure, 1, a valve body; 2. a spherical shell; 20. a half shell; 201. limiting stop edges; 202. positioning ring grooves; 203. a clamping groove; 204. a bayonet lock; 3. a water inlet; 4. a water outlet; 5. a seal ring; 6. a core; 7. a gap.

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 to 4, the ball valve comprises a valve body 1 and a ball shell 2 arranged in the valve body 1, wherein the ball shell 2 is provided with a water inlet 3 and a water outlet 4, a ball core 6 is arranged in the ball shell 2, sealing rings 5 are arranged on the inner wall of the ball shell 2 and correspond to the water inlet 3 and the water outlet 4, the sealing rings 5 and the ball shell 2 are integrally formed, the outer wall of the ball core 6 is tightly attached to the sealing rings 5, and a gap 7 is formed between the outer spherical surface of the ball core 6 and the inner wall of the ball shell 2. The sealing washer 5 and the spherical shell 2 integrated into one piece in this structure, when the spherical core 6 rotates, the sealing washer 5 is motionless when, and sealing washer 5 all the time with the outer wall contact of spherical core 6, the outer wall of spherical core 6 is the sphere, the wearing and tearing of sealing washer 5 have been showing to reduce for the sealing performance of ball valve obtains showing the improvement, in addition, have clearance 7 between the outer wall of spherical core 6 and the inner wall of spherical shell 2, reduced the frictional force between spherical core 6 and the spherical shell 2, make the rotation of spherical core 6 more smooth and easy, the pivoted feel is obviously improved.

Further, as shown in fig. 1 to 4, the spherical shell 2 includes two half shells 20 which are injection molded respectively, the water inlet 3 is formed on one of the half shells 20, and the water outlet 4 is formed on the other half shell 20. Opposite ends of the two half-shells 20 are connected, and each sealing ring 5 is integrally formed with one half-shell 20. During manufacturing, one half shell 20 and the sealing ring 5 are firstly formed by injection molding, then the ball core 6 is placed in one half shell 20, then the other half shell 20 is formed by injection molding, two opposite end parts of the two half shells 20 are connected in the injection molding process, and the two half shells 20 wrap the ball core 6 in the ball shell 2.

As shown in fig. 1 to 4, one end of one half shell 20 is provided with an annular limiting stop edge 201, and one end of the other half shell 20 is provided with an annular positioning ring groove 202, wherein the limiting stop edge 201 is embedded into the positioning ring groove 202; one end of one half shell 20 is provided with a plurality of circular arc-shaped clamping grooves 203 distributed along the circumferential direction, and one end of the other half shell 20 is provided with cylindrical clamping pins 204 which are arranged in one-to-one correspondence with the clamping grooves 203, and the clamping pins 204 are embedded in the clamping grooves 203.

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.

Claims

1. The utility model provides a ball valve, includes valve body (1) and sets up spherical shell (2) in valve body (1), spherical shell (2) have water inlet (3) and delivery port (4), be provided with ball core (6) in spherical shell (2), the position that corresponds water inlet (3) and delivery port (4) on the inner wall of spherical shell (2) all is provided with sealing washer (5), a serial communication port, sealing washer (5) and spherical shell (2) integrated into one piece, the outer wall and sealing washer (5) of ball core (6) are hugged closely to have clearance (7) between the outer wall of ball core (6) and the inner wall of spherical shell (2).

2. A ball valve according to claim 1, characterized in that the ball housing (2) comprises two respective injection-moulded half-shells (20), the opposite ends of the two half-shells (20) being connected, each sealing ring (5) being integrally formed with one of the half-shells (20).

3. A ball valve according to claim 2, characterized in that one of the half-shells (20) has an annular stop edge (201) at one end and an annular positioning groove (202) at one end of the other half-shell (20), said stop edge (201) being embedded in the positioning groove (202).

4. A ball valve according to claim 2 or 3, characterized in that one end of one half-shell (20) is provided with a plurality of circular arc-shaped clamping grooves (203) distributed along the circumferential direction, one end of the other half-shell (20) is provided with cylindrical clamping pins (204) which are arranged in one-to-one correspondence with the clamping grooves (203), and the clamping pins (204) are embedded in the clamping grooves (203).

5. A ball valve according to claim 2, characterized in that the water inlet (3) is provided in one of the half-shells (20) and the water outlet (4) is provided in the other half-shell (20).