CN210920195U - Sealing structure with automatic compensation property - Google Patents

Abstract

The utility model discloses a sealing structure with automatic compensation properties, which relates to the technical field of sealing structures, comprising a valve body, a valve ball is arranged at a middle position inside the valve body, and one side of the valve ball is connected with the valve body. A sealing ring is arranged at the connection position, a spring washer is arranged on one side of the sealing ring, and the sealing ring includes a conical surface and a raised ring. By setting the conical surface, the utility model sets the sealing ring into a conical matching form, which increases the sealing performance and improves the sealing effect. With the function of automatic adjustment, it can be sealed again, which improves the sealing performance of the equipment and reduces the difficulty of work.

Description

A sealing structure with self-compensating properties

technical field

The utility model relates to the technical field of sealing structures, in particular to a sealing structure with automatic compensation properties.

Background technique

Sealing is the function of preventing the leakage of gas, liquid or solid and the entry of particles and fluids outside the tissue into the closed space or pipeline system. The parts that can play a sealing role are called seals, and the more complex sealing connections are called sealing structures or sealing devices. , The valve body is generally sealed with a sealing ring. The sealing ring sealing is to open a groove on one surface of the two mating surfaces (slotting according to the shape of the sealing ring), and put the sealing ring inside to play a sealing role. Ring seals are widely used, and there are many types according to the shape of the seal ring. The most basic and common ones are 0-type sealing ring, U-type sealing ring and Y-type sealing ring. The material of the sealing ring is metal, plastic and rubber products, among which The sealing ring in the valve body is used most times, and its purpose is to prevent the flowing medium from leaking from the gap where the upper valve seat and the lower valve seat meet.

The existing sealing structure is usually a flat seal, the sealing surface is limited, the sealing effect is not good, and the flat sealing ring structure has no adjustable property.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to solve the problem that the existing sealing structure is usually a flat seal, the sealing surface is limited, the sealing effect is not good, and the flat sealing ring structure does not have the adjustable property, and does not have the automatic adjustment function when leakage occurs at the place. , the problem of working difficulty is improved, and a sealing structure with automatic compensation property is provided.

In order to achieve the above purpose, the present invention provides the following technical solutions: a sealing structure with automatic compensation properties, comprising a valve body, a valve ball is arranged at a middle position inside the valve body, and one side of the valve ball is connected to the valve body. A sealing ring is arranged at the connection position of the body, a spring washer is arranged on one side of the sealing ring, and the sealing ring includes a conical surface and a raised ring.

Preferably, both the sealing ring and the spring washer are circular structures, the top of the sealing ring is a raised ring, and the bottom of the sealing ring is a conical surface.

Preferably, the upward inclination angle of the tapered surface is 30°.

Preferably, the sealing ring is made of tetrafluoro material.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model sets the sealing ring into a conical matching form by setting the conical surface, which increases the sealing performance and improves the sealing effect;

2. Due to the adjustable nature of the conical surface, the valve body has the function of automatic adjustment after the leakage point is generated there, so that it can be resealed, which improves the sealing performance of the equipment and reduces the difficulty of work.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the structural representation of the utility model;

Fig. 3 is the structural representation of the sealing ring of the utility model;

FIG. 4 is a top view of the sealing ring of the present invention.

In the figure: 1. Valve body; 2. Valve ball; 3. Sealing ring; 4. Spring washer; 5. Conical surface; 6. Raised ring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Fig. 1-4, a sealing structure with automatic compensation property, including a valve body 1, a valve ball 2 is arranged at the middle position inside the valve body 1, and one side of the valve ball 2 is connected with the valve body 1 at the position A sealing ring 3 is provided, a spring washer 4 is provided on one side of the sealing ring 3 , and the sealing ring 3 includes a conical surface 5 and a raised ring 6 .

In the present invention, the conical surface 5 and the raised ring 6 are arranged, so that the bottom of the sealing ring 3 is conical, so that the sealing ring 3 and the valve ball 2 are sealed by the conical surface, which increases the sealing performance and improves the sealing effect. The adjustable nature of the conical surface 5 enables the valve body 1 to have the function of automatic adjustment after the leakage point is generated there, so that it can be resealed to improve the sealing performance of the equipment.

1, 2, 3 and 4, the sealing ring 3 and the spring washer 4 are both circular structures, the top of the sealing ring 3 is a raised ring 6, and the bottom of the sealing ring 3 is a tapered surface 5.

The sealing structure with the self-compensating property is provided with a sealing ring 3, a spring washer 4 and the valve ball 2 in cooperation to increase the sealing performance of the structure.

Please refer mainly to Figures 1, 3 and 4, the angle of inclination of the tapered surface 5 upward is 30°.

The sealing structure with self-compensating properties greatly improves the sealing effect by setting the inclination angle of the conical surface 5 to 30° to increase the sealing surface.

Please refer to Figures 1, 2, 3 and 4. The sealing ring 3 is made of PTFE.

The sealing ring 3 of the sealing structure with the self-compensating property can be made of PTFE when the temperature is less than 180 ^oC , and must be made of flexible wound graphite when the temperature is greater than 180 ^oC .

Working principle: By setting the top of the sealing ring 3 as a raised ring 6 and the bottom as a conical surface 5, when installing the valve ball 2, the structure of the sealing ring 3 is made into a conical fitting form, so that the original flat seal is changed. In order to seal the conical surface, the sealing surface is enlarged, which greatly improves the sealing effect, and the adjustable nature of the conical structure enables the equipment to have the function of automatic adjustment after the leakage point occurs there, so that it can be re-sealed to improve the sealing of the equipment. sex, reducing the difficulty of work.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (4)

1. A sealing structure with self-compensating properties, comprising a valve body (1), characterized in that: valve ball (2) are arranged at the middle position inside valve body (1), sealing ring (3) is arranged at the connecting position of one side of valve ball (2) and valve body (1), spring pad (4) is arranged at one side of sealing ring (3), and sealing ring (3) comprises conical surface (5) and protruding ring (6).

2. A sealing structure having self-compensating properties according to claim 1, wherein: sealing ring (3) and spring pad (4) all are circular structure, the top of sealing ring (3) is protruding ring (6), the bottom of sealing ring (3) is conical surface (5).

3. A sealing structure having self-compensating properties according to claim 1, wherein: the upward inclination angle of the conical surface (5) is 30 degrees.

4. A sealing structure having self-compensating properties according to claim 1, wherein: the sealing ring (3) is made of tetrafluoro material.

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