CN217130380U

CN217130380U - Ball valve seal

Info

Publication number: CN217130380U
Application number: CN202122938105.XU
Authority: CN
Inventors: 杨姚耀
Original assignee: Qidong Alfa Valve Co ltd
Current assignee: Qidong Alfa Valve Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-08-05
Anticipated expiration: 2031-11-27

Abstract

The utility model provides a ball valve sealing member relates to ball valve technical field. The ball valve sealing member includes the sealing washer main part, still includes: and the auxiliary sealing piece is connected to the sealing ring main body and used for filling a gap at the joint of the sealing ring main body and the valve body. The utility model provides a ball valve sealing member has and sets up auxiliary seal spare at sealing washer main part both ends to the clearance department of being connected by spring drive auxiliary seal circle and valve body laminates mutually, simultaneously because the terminal surface of auxiliary seal circle and valve body contact is the arcwall face of indent, thereby produces a suction, makes the compacter advantage of being connected between valve body and the sealing washer main part.

Description

Ball valve seal

Technical Field

The utility model relates to a ball valve technical field especially relates to ball valve seal.

Background

The ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves.

Ball valve junction can use the sealing member to fill its inside space usually to make the junction can not appear the condition of seepage, and the sealing washer is used to current sealing member more, and its both ends when contacting with the valve body, because the sealing washer is single structure, probably and the valve body between be connected not compact enough, thereby lead to the valve junction to have certain clearance, cause the seepage.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a ball valve sealing member.

The utility model provides a ball valve sealing member includes: the sealing washer main part still includes: and the auxiliary sealing piece is connected to the sealing ring main body and used for filling a gap at the joint of the sealing ring main body and the valve body.

Preferably, circular grooves are formed in two ends of the sealing ring main body, and auxiliary sealing elements are connected in the circular grooves.

Preferably, supplementary sealing member includes the retainer plate, the retainer plate is located the circular slot, the spring that a plurality of equidistance of retainer plate one end fixedly connected with distributes, the other end fixedly connected with clamping ring of spring, the supplementary sealing washer of other end fixedly connected with of clamping ring.

Preferably, the end face, away from the sealing ring main body, of the auxiliary sealing ring is an inwards concave arc-shaped face.

Preferably, one end of the auxiliary seal ring is in contact with one end of the seal ring main body.

Preferably, a plurality of equidistance distribution's unthreaded hole has been seted up on the retaining ring, a plurality of equidistance distribution's screw hole has been seted up to the tank bottom of circular slot, the unthreaded hole is corresponding with the position of screw hole, screw hole threaded connection has fixing bolt, fixing bolt runs through unthreaded hole and screw hole threaded connection.

Preferably, the secondary seal is removable.

Compared with the prior art, the utility model provides a ball valve seal has following beneficial effect:

the utility model provides a ball valve sealing member sets up auxiliary seal spare at sealing washer main part both ends to the clearance department of being connected by spring drive auxiliary seal circle and valve body laminates mutually, simultaneously because the terminal surface of auxiliary seal circle and valve body contact is the arcwall face of indent, thereby produces a suction, makes between valve body and the sealing washer main part be connected compacter.

Drawings

Fig. 1 is a schematic overall structure diagram of a preferred embodiment of a ball valve seal according to the present invention;

fig. 2 is a schematic structural view of the explosion shown in fig. 1 according to the present invention;

fig. 3 is a schematic structural view of the explosion of the auxiliary sealing member according to the present invention;

fig. 4 is a schematic structural view of fig. 1 in partial section according to the present invention.

Reference numbers in the figures: 1. a seal ring main body; 2. a circular groove; 3. a secondary seal; 31. a stationary ring; 32. a spring; 33. a connecting ring; 34. an auxiliary seal ring; 4. a light hole; 5. a threaded hole; 6. and (5) fixing the bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Referring to fig. 1 to 4, an embodiment of the present invention provides a ball valve sealing member, which includes: sealing washer main part 1 still includes: and the auxiliary sealing element 3 is connected to the sealing ring main body 1, and the auxiliary sealing element 3 is used for filling a gap at the joint of the sealing ring main body 1 and the valve body.

It should be noted that: the auxiliary sealing pieces 3 are arranged at the two ends of the sealing ring main body 1, the gap where the auxiliary sealing ring 34 is connected with the valve body is driven by the spring 32 to be attached to each other, and meanwhile, the end face, in contact with the valve body, of the auxiliary sealing ring 34 is an inwards concave arc-shaped face, so that suction force is generated, and the valve body and the sealing ring main body 1 are connected more compactly.

In an embodiment of the present invention, please refer to fig. 1 and 4, circular grooves 2 are formed at both ends of the sealing ring main body 1, two circular grooves 2 are connected with auxiliary sealing elements 3, each auxiliary sealing element 3 includes a fixing ring 31, the fixing ring 31 is located in the circular groove 2, one end of the fixing ring 31 is fixedly connected with a plurality of springs 32 distributed at equal intervals, the other end of the spring 32 is fixedly connected with a connecting ring 33, and the other end of the connecting ring 33 is fixedly connected with an auxiliary sealing ring 34;

the end surface of the auxiliary sealing ring 34 far away from the sealing ring main body 1 is an inwards concave arc surface;

one end of the auxiliary sealing ring 34 is contacted with one end of the sealing ring main body 1;

it should be noted that: after the auxiliary sealing member 3 is fixed, the staff places the sealing washer main part 1 in the clearance department that two valve bodies are connected, when the valve body both ends moved to the direction of sealing washer main part 1, the valve body both ends contact with the auxiliary sealing ring 34 among the auxiliary sealing member 3, at this moment, spring 32 among the auxiliary sealing member 3 is compressed state by the state conversion of stretching, and drive connecting ring 33 and auxiliary sealing ring 34 and also move along with the direction that the valve body moved, make the one end of auxiliary sealing ring 34 contact with the one end of sealing washer main part 1, and simultaneously, because the terminal surface of auxiliary sealing ring 34 and valve body contact is the arcwall face of indent, thereby produce a suction, make between valve body and the sealing washer main part 1 be connected compacter.

In the embodiment of the present invention, please refer to fig. 3 and 4, a plurality of light holes 4 are equidistantly formed in the fixing ring 31, a plurality of threaded holes 5 are equidistantly formed in the bottom of the circular groove 2, the light holes 4 correspond to the threaded holes 5, a fixing bolt 6 is screwed into the threaded holes 5, and the fixing bolt 6 penetrates through the light holes 4 and is screwed into the threaded holes 5;

the auxiliary seal member 3 is detachable;

it should be noted that: when the device is installed, a worker places the auxiliary sealing element 3 in the circular groove 2 formed in the sealing ring main body 1, so that the unthreaded hole 4 in the fixing ring 31 in the auxiliary sealing element 3 corresponds to the threaded hole 5 at the bottom of the circular groove 2, and then the fixing bolt 6 penetrates through the unthreaded hole 4 and is in threaded connection with the threaded hole 5, so that the fixing ring 31 is fixed with the circular groove 2, and therefore the auxiliary sealing element 3 is connected with the sealing ring main body 1.

The utility model provides a ball valve sealing member's theory of operation as follows: when the device is installed, a worker places the auxiliary sealing element 3 in the circular groove 2 formed in the sealing ring main body 1, so that the unthreaded hole 4 in the fixing ring 31 in the auxiliary sealing element 3 corresponds to the threaded hole 5 at the bottom of the circular groove 2, and then the fixing bolt 6 penetrates through the unthreaded hole 4 and is in threaded connection with the threaded hole 5, so that the fixing ring 31 and the circular groove 2 are fixed, and therefore the connection between the auxiliary sealing element 3 and the sealing ring main body 1 is completed;

after the auxiliary sealing member 3 is fixed, the staff places the sealing washer main part 1 in the clearance department that two valve bodies are connected, when the valve body both ends moved to the direction of sealing washer main part 1, the valve body both ends contact with the auxiliary sealing ring 34 among the auxiliary sealing member 3, at this moment, spring 32 among the auxiliary sealing member 3 is compressed state by the state conversion of stretching, and drive connecting ring 33 and auxiliary sealing ring 34 and also move along with the direction that the valve body moved, make the one end of auxiliary sealing ring 34 contact with the one end of sealing washer main part 1, and simultaneously, because the terminal surface of auxiliary sealing ring 34 and valve body contact is the arcwall face of indent, thereby produce a suction, make between valve body and the sealing washer main part 1 be connected compacter.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. Ball valve seal spare, including sealing washer main part (1), its characterized in that still includes:

the sealing ring comprises an auxiliary sealing piece (3), wherein the sealing ring main body (1) is connected with the auxiliary sealing piece (3), and the auxiliary sealing piece (3) is used for filling a gap at the joint of the sealing ring main body (1) and the valve body.

2. The ball valve seal according to claim 1, wherein circular grooves (2) are formed at both ends of the seal ring main body (1), and auxiliary seals (3) are connected in the two circular grooves (2).

3. The ball valve seal according to claim 2, characterized in that the auxiliary seal (3) comprises a fixed ring (31), the fixed ring (31) is located in the circular groove (2), one end of the fixed ring (31) is fixedly connected with a plurality of equidistantly distributed springs (32), the other end of the springs (32) is fixedly connected with a connecting ring (33), and the other end of the connecting ring (33) is fixedly connected with an auxiliary sealing ring (34).

4. A ball valve seal according to claim 3, characterized in that the end surface of the auxiliary seal ring (34) remote from the seal ring body (1) is concavely curved.

5. A ball valve seal according to claim 4, characterized in that one end of the auxiliary seal ring (34) is in contact with one end of the seal ring body (1).

6. The ball valve sealing element according to claim 5, characterized in that a plurality of light holes (4) are formed in the fixing ring (31) and are distributed at equal intervals, a plurality of threaded holes (5) are formed in the bottom of the circular groove (2) and are distributed at equal intervals, the light holes (4) correspond to the threaded holes (5), a fixing bolt (6) is connected to the threaded holes (5) in a threaded manner, and the fixing bolt (6) penetrates through the light holes (4) and is in threaded connection with the threaded holes (5).

7. The ball valve seal according to claim 6, characterized in that the secondary seal (3) is detachable.