Valve clack rubber coating

Abstract

The utility model relates to the field of valve clacks, in particular to a valve clack rubber coating. The rubber coating structure comprises a rubber coating body, an edge covering ring and a sealing assembly. An annular groove is formed in one end of the rubber coating body; an adjusting inclined surface I is arranged on the outer side of the annular groove. The edge covering ring is arranged on the outer side of the rubber coating body in a sleeving mode and provides protection for the rubber coating body. The sealing assembly is arranged at the end, provided with the annular groove, of the rubber coating body. The sealing assembly comprises a spring and a sliding block. The spring pushes the sliding block to abut against the inner wall of the valve seat, and therefore the sealing performance when the valve is closed is improved. According to the utility model, one end of the rubber coating body is provided with the annular groove; an adjusting inclined surface I is arranged on the outer side of the annular groove. The rubber coating body can wrap the whole valve clack, so that the rubber coating body and the valve clack are tightly attached and cannot be separated easily. And by arranging the annular groove and the first adjusting slope, the stability of the rubber coating body in the assembling process can be improved, and deviation of the rubber coating body and the valve clack is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of valve clack, especially a valve clack rubber coating. BACKGROUND

[0002] The valve clack is a key component of the valve. The valve clack is usually located inside the valve and is the movable part. In the stop valve, the valve clack is generally disc-shaped, which is closely matched with the valve seat and controls the on-off of the fluid by moving up and down. The valve clack rubber coating is a rubber protective sleeve set outside the valve clack, which mainly uses the characteristics of rubber to improve the performance of the valve clack.

[0003] The Chinese patent document with the authorized announcement number CN222067641U proposes a double-layer hard sealing valve clack, which comprises a valve clack, the valve clack is composed of a valve rod connecting part and a boss fixed with the valve rod connecting part, a clamping groove is formed in the middle of the valve rod connecting part, an anti-wear sheet is inserted into the clamping groove, an annular groove is formed in the middle of the boss, and an O-shaped sealing ring is installed in the annular groove; the clamping groove is composed of two groove structures, the radius of the groove structure at the bottom end is greater than that at the top end, and the size of the anti-wear sheet is matched with that of the clamping groove.

[0004] In the above application, the O-shaped sealing ring structure arranged on the boss is used to compensate the compression of the shaft hole end of the gate valve clack to enhance the sealing performance of the gate valve, which prevents the shaft hole of the gate valve clack from being waterlogged in the vertical direction. However, it is difficult for the O-shaped sealing ring to closely adhere to the inner wall of the valve seat, thereby it is difficult to ensure the sealing effect. In addition, the existing valve clack rubber coating is prone to deviation from the valve clack body during assembly. UTILITY MODEL CONTENTS

[0005] In view of the problems in the background art, a valve clack rubber coating is proposed.

[0006] The utility model proposes a valve clack rubber coating, which comprises a rubber coating body, a rimmed ring and a sealing assembly. One end of the rubber coating body is provided with an annular groove; an adjusting inclined surface one is arranged on the outer side of the annular groove. The rimmed ring is sleeved outside the rubber coating body to provide protection for the rubber coating body. The sealing assembly is arranged at one end of the rubber coating body provided with the annular groove; the sealing assembly comprises a spring and a sliding block; the sliding block is pushed by the spring to abut against the inner wall of the valve seat, thereby improving the sealing performance of the valve when it is closed.

[0007] Preferably, the rimmed ring can cover the two side edges of the rubber coating body.

[0008] Preferably, the sealing assembly comprises a connecting ring arranged on the side surface of the rubber coating body; a plurality of sealing members for plugging the valve seat are arranged in an annular array on the connecting ring.

[0009] Preferably, the plurality of sealing members abut against each other.

[0010] Preferably, the sealing piece comprises a sleeve frame arranged at the side wall of the connecting ring; a sliding block is slidably connected in the sleeve frame; and a spring is connected between the sliding block and the connecting ring.

[0011] Preferably, the side of the sliding block away from the rubberized body is provided with an adjusting slope two.

[0012] Preferably, the rubberized body, the edge covering ring and the sliding block are all made of rubber material.

[0013] Compared with the prior art, the valve clack rubberizing device has the following beneficial technical effects:

[0014] (1) The valve clack rubberizing device, through the annular groove arranged at one end of the rubberized body, and the adjusting slope one arranged outside the annular groove, can wrap the valve clack as a whole, so that the rubberized body and the valve clack are tightly attached and cannot be easily separated. The arrangement of the annular groove and the adjusting slope one can improve the stability of the rubberized body during assembly, and avoid the deviation of the rubberized body and the valve clack.

[0015] (2) The valve clack rubberizing device, through the sliding block abutting against the inner wall of the valve seat under the pushing of the spring when the valve is closed, can fill the possible small gap between the valve clack and the valve seat, thereby improving the sealing performance of the valve when closed, and ensuring that the valve can effectively prevent fluid from passing through in the closed state. In addition, the arrangement of the sealing assembly can also improve the application range of the rubberized body, so that the rubberized body can be adapted to valve seats with different inner diameters. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the utility model;

[0017] Fig. 2 It is a whole structure explosion view of the utility model;

[0018] Fig. 3 It is a sealing assembly structure schematic view of the utility model.

[0019] Mark: 1, rubberized body; 2, annular groove; 3, edge covering ring; 4, sealing assembly; 41, connecting ring; 42, sealing piece; 421, sleeve frame; 422, spring; 423, sliding block. DETAILED DESCRIPTION

[0020] As Figs. 1-3As shown, the valve clack encapsulation provided by the utility model can be used in cooperation with the valve clack, and comprises an encapsulation body 1, a rimmed ring 3 and a sealing assembly 4. One end of the encapsulation body 1 is provided with an annular groove 2; the outer side of the annular groove 2 is provided with an adjusting slope one. The encapsulation body 1 can wrap the valve clack as a whole, so that the encapsulation body 1 and the valve clack are tightly attached and cannot be easily separated. The annular groove 2 and the adjusting slope one can improve the stability of the encapsulation body 1 during assembly, and avoid the encapsulation body 1 and the valve clack from being deviated. The rimmed ring 3 is sleeved on the outer side of the encapsulation body 1 to provide protection for the encapsulation body 1. The sealing assembly 4 is arranged at one end of the encapsulation body 1 provided with the annular groove 2; the sealing assembly 4 comprises a spring 422 and a sliding block 423; the sliding block 423 is pushed by the spring 422 to abut against the inner wall of the valve seat, so that the sealing property of the valve when closed is improved.

[0021] Further explanation, the rimmed ring 3 can cover the two side edges of the encapsulation body 1. The two side edges of the encapsulation body 1 can be protected, and wear of the two side edges of the encapsulation body 1 during use can be avoided, so that the valve clack is not exposed.

[0022] Further explanation, the sealing assembly 4 comprises a connecting ring 41 arranged on the side of the encapsulation body 1; a plurality of sealing members 42 for plugging the valve seat are arranged in an annular array on the connecting ring 41. The plurality of sealing members 42 abut against each other in pairs. The sealing member 42 comprises a sleeve frame 421 arranged at the side wall of the connecting ring 41; the sleeve frame 421 is slidably connected with a sliding block 423; the sliding block 423 and the connecting ring 41 are connected with a spring 422. The sliding block 423 is pushed by the spring 422 to abut against the inner wall of the valve seat, so that the small gap possibly existing between the valve clack and the valve seat can be filled, the sealing property of the valve when closed is improved, and the valve can effectively prevent fluid from passing in the closed state. In addition, the arrangement of the sealing assembly 4 can also improve the application range of the encapsulation body 1, so that the encapsulation body 1 can be adapted to valve seats with different inner diameters.

[0023] Further explanation, the side of the sliding block 423 away from the encapsulation body 1 is provided with an adjusting slope two, so that the sliding block 423 can slide into the valve seat along the adjusting slope two.

[0024] Further explanation, the encapsulation body 1, the rimmed ring 3 and the sliding block 423 are all made of rubber material. The rubber material has good elasticity and can better fill the small gap between the valve clack and the valve seat.

[0025] The working principle of the utility model is as follows: during installation, the encapsulation body 1 is first sleeved on the outside of the valve clack, and then the rimmed ring 3 is sleeved on the outer side of the encapsulation body 1. When the valve is closed, the sliding block 423 will abut against the inner wall of the valve seat under the pushing of the spring 422, so that the small gap possibly existing between the valve clack and the valve seat can be filled, the sealing property of the valve when closed is improved, and the valve can effectively prevent fluid from passing in the closed state.

[0026] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to this, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A valve clack encapsulation, characterized in that, The utility model relates to a valve, including The one end of the encapsulated body (1) is provided with an annular groove (2); the outer side of the annular groove (2) is provided with adjusting slope one; The edge ring (3) is sleeved outside the encapsulated body (1) and provides protection for the encapsulated body (1); And the sealing assembly (4) is arranged at the one end of the encapsulated body (1) provided with the annular groove (2); the sealing assembly (4) includes spring (422) and slider (423); the slider (423) is pushed to the inner wall of valve seat through the spring (422), thereby improving the sealing property when the valve is closed.

2. A valve clack encapsulation according to claim 1, wherein, The edge ring (3) can cover the two side lines of the encapsulated body (1).

3. A valve clack encapsulation according to claim 1, wherein, The sealing assembly (4) includes the connecting ring (41) arranged at the side of the encapsulated body (1); a plurality of groups of sealing pieces (42) for plugging the valve seat are arranged in annular array on the connecting ring (41).

4. A valve clack encapsulation according to claim 3, wherein, The plurality of groups of sealing pieces (42) abut each other.

5. A valve clack encapsulation according to claim 4, wherein, The sealing piece (42) includes the sleeve frame (421) arranged at the side wall of the connecting ring (41); the slider (423) is slidably connected in the sleeve frame (421); the spring (422) is connected between the slider (423) and the connecting ring (41).

6. A valve clack encapsulation according to claim 5, wherein, The side, away from the encapsulated body (1), of the slider (423) is provided with adjusting slope two.

7. A valve clack encapsulation according to claim 5, wherein, The encapsulated body (1), the edge ring (3) and the slider (423) are all of rubber material.

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