CN222864187U

CN222864187U - Ball valve structure with double compensation effects on abrasion of sealing element

Info

Publication number: CN222864187U
Application number: CN202421765471.7U
Authority: CN
Inventors: 丁兰超; 刘孟北; 张金龙; 赵芳芳; 杨振辉
Original assignee: Xinxiang Huahang Aviation Hydraulic Equipment Co ltd
Current assignee: Xinxiang Huahang Aviation Hydraulic Equipment Co ltd
Priority date: 2024-07-25
Filing date: 2024-07-25
Publication date: 2025-05-13
Anticipated expiration: 2034-07-25

Abstract

The utility model discloses a ball valve structure with double compensation effects on abrasion of a sealing element, which comprises a shell, a spherical valve and a guide sleeve II, wherein the spherical valve is arranged in the shell from the upper end, the guide sleeve II is respectively arranged in a channel at the left end and the right end of the shell, the inner end of the guide sleeve II is attached to the spherical valve, a tetrafluoro sealing ring, an inlet valve and a wave spring are sequentially arranged in the guide sleeve, an inner boss is arranged at the inner side end of the guide sleeve, the tetrafluoro sealing ring is abutted against the inner boss, the tetrafluoro sealing ring is contacted with the spherical valve, the upper end of the shell is provided with the guide sleeve I, a sealing ring I is arranged between the guide sleeve I and the shell, a flange is arranged at the left end of the shell, the inner end of the flange is inserted into the guide sleeve II, a pipe joint is arranged at the right end of the shell, the inner ends of the flange and the pipe joint are respectively contacted with the wave spring.

Description

Ball valve structure with double compensation effects on abrasion of sealing element

Technical Field

The utility model relates to the technical field of hydraulic valve compensation sealing, in particular to a ball valve structure with double compensation effects on abrasion of a sealing element.

Background

The manual three-way ball valve is mainly used in the market, and is mainly used for sealing by packing compression seal or spring compensation seal, and has the advantages of limited packing compensation capability and higher leakage risk, and the spring compensation seal can be used for reducing the spring force due to long-term compression deformation or action abrasion of a sealing element, gradually reducing the sealing performance along with the increase of the service life, and cannot meet the requirement of long-term reliable sealing. For this reason, there is a need for a ball valve structure that has a high compensation capacity and that can maintain a reliable seal for a long period of time.

Disclosure of utility model

The utility model aims to overcome the prior defects and provide a ball valve structure with double compensation effects on the abrasion of a sealing element, which has simple structural design, the compensation capability is strong, the frequent requirement of reversing actions is met, reliable sealing can be kept for a long time, and the problem in the background technology can be effectively solved.

The ball valve structure comprises a shell, a spherical valve and a guide sleeve II, wherein the spherical valve is arranged at the upper end of the shell, the guide sleeve II is respectively arranged in channels at the left end and the right end of the shell, the inner end of the guide sleeve II is attached to the spherical valve, a tetrafluoro sealing ring, an inlet valve and a wave spring are sequentially arranged in the guide sleeve II, an inner boss is arranged at the inner end of the guide sleeve II, the tetrafluoro sealing ring is abutted against the inner boss, the tetrafluoro sealing ring is in contact with the spherical valve, a guide sleeve I is arranged at the upper end of the shell, a sealing ring I is arranged between the guide sleeve I and the shell, a flange is arranged at the left end of the shell, the inner end of the flange is inserted into the guide sleeve II, a pipe joint is arranged at the right end of the shell, the inner end of the pipe joint is inserted into the guide sleeve II, and the inner ends of the flange and the pipe joint are respectively in contact with the wave spring.

Further, the left end of the shell is set to be an A port, the right end of the shell is set to be a B port, and the lower end of the shell is set to be an inlet.

Further, the upper end of the spherical valve penetrates through the upper portion of the guide sleeve I, a sealing ring VII is arranged between the spherical valve and the guide sleeve I, a sealing ring IV is arranged between the lower portion of the spherical valve and the shell, and the upper end of the spherical valve is connected with a handle through a screw.

Further, a sealing ring V is arranged between the flange and the shell, a sealing ring III is arranged between the flange and the guide sleeve II and between the pipe joint and the guide sleeve II respectively, and a sealing ring II is arranged on the outer surface of the left end of the flange.

Further, a sealing ring II is arranged between the pipe joint and the shell, and the pipe joint is connected with the shell in a threaded mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. the structure is simple in design, the wave spring is compressed, the inlet valve and the tetrafluoro sealing ring are pressed on the spherical valve to form a sealing structure, and the structure is strong in compensation capability and can keep reliable sealing performance for a long time.

2. The guide sleeve II is tightly attached to the spherical surface under the pressure action of the tetrafluoro sealing ring transmitted to the guide sleeve II, the greater the pressure on the tetrafluoro sealing ring is, the more tightly the guide sleeve is attached to the spherical surface, the protection sealing ring is pressed by high pressure without generating gap extrusion, and under the pressure state, the inlet valve can be subjected to the double action of spring force and partial hydraulic pressure, so that the sealing performance is better.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a handle rotation switching outlet structure according to the present utility model;

fig. 3 is an enlarged schematic view of the guide sleeve II and inlet valve of the present utility model.

In the figure, a handle, a screw, a guide sleeve I, a seal ring I, a shell 5, a seal ring II, a pipe joint 7, a seal ring III, a wave spring 9, a guide sleeve II, an inlet valve 11, a tetrafluoro seal ring 12, a seal ring IV, a spherical valve 14, a seal ring V15, a seal ring VI 16, a flange 17, a seal ring VII 18, a seal ring A, a seal ring opening 20B and an inner boss 21 are arranged on the handle.

Detailed Description

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, the utility model provides a ball valve structure with double compensation function for abrasion of sealing elements, which comprises a shell 5, a spherical valve 14 and a guide sleeve II10, wherein the spherical valve 14 is arranged from the upper end of the shell 5, the guide sleeve II10 is respectively arranged in a channel at the left end and the right end of the shell 5, the inner end of the guide sleeve II10 is attached to the spherical valve 14, a tetrafluoro sealing ring 12, an inlet valve 11 and a wave spring 9 are sequentially arranged in the guide sleeve II10, at the moment, the wave spring 9 is compressed, the tetrafluoro sealing ring 12 is tightly attached to the spherical valve 14, the guide sleeve II10 is also stressed and tightly attached to the spherical valve 14, so that a reliable sealing structure is formed, the inner end of the guide sleeve II10 is provided with an inner boss 21, the tetrafluoro sealing ring 12 is abutted to the inner boss 21, the tetrafluoro sealing ring 12 is contacted with the spherical valve 14, the upper end of the shell 5 is provided with the guide sleeve I3, a sealing ring I4 is arranged between the guide sleeve I3 and the shell 5, the left end of the shell 5 is provided with a flange 17, the inner end of the flange 17 is inserted into the inner end of the shell 17, the inner end of the guide sleeve 7 is inserted into the wave spring 7 and the wave spring 9 is compressed into the wave spring 9, and the wave spring 9 is respectively pressed into the wave spring 7 and the wave spring 9 is compressed into the inner end of the wave valve 7, which is respectively, and the wave spring 9 is compressed into the inner end of the wave valve 9, so that the wave valve is tightly pressed into the sealing structure, and the wave valve is respectively.

The left end of the housing 5 is provided with an A port 19, the right end of the housing 5 is provided with a B port 20, and the lower end of the housing 5 is provided with an inlet.

The upper end of the spherical valve 14 penetrates through the upper portion of the guide sleeve I3, a sealing ring VII18 is arranged between the spherical valve 14 and the guide sleeve I3, a sealing ring IV13 is arranged between the lower portion of the spherical valve 14 and the shell 5, the upper end of the spherical valve 14 is connected with the handle 1 through the screw 2, and the spherical valve 14 is rotated through the handle 1, so that the switching between the port A19 and the port B20 is realized.

A sealing ring V15 is arranged between the flange 17 and the shell 5, a sealing ring III8 is arranged between the flange 17 and the guide sleeve II10 and between the pipe joint 7 and the guide sleeve II10 respectively, a sealing ring II6 is arranged on the outer surface of the left end of the flange 17 and used for sealing when being connected with a pipeline, a sealing ring II6 is arranged between the pipe joint 7 and the shell 5, the pipe joint 7 is connected with the shell 5 in a threaded mode, and in the structure, polytetrafluoroethylene SFB-1 is selected as a sealing ring material to meet the sealing requirement.

When the novel sealing device is used, the wave spring 9 provides pressure for the inlet valve 11 under the condition of no pressure, the tetrafluoro sealing ring 12 is compressed, the tetrafluoro sealing ring 12 is tightly attached to the spherical surface of the spherical valve 14, sealing is achieved, the guide sleeve II10 is tightly attached to the spherical surface under the action of the pressure transmitted by the tetrafluoro sealing ring 12, the guide sleeve II10 is tightly attached to the spherical surface when the pressure on the tetrafluoro sealing ring 12 is larger, the guide sleeve II10 is protected from being extruded out in a gap under the action of the spring force and partial hydraulic force when the pressure is higher, and the sealing performance is better.

While the basic principles of the utility model have been shown and described, there are various changes and modifications to the utility model, which fall within the scope of the utility model as hereinafter claimed, without departing from the spirit and scope of the utility model.

Claims

1. A ball valve structure with double compensation effects on abrasion of sealing elements comprises a shell (5), a spherical valve (14) and a guide sleeve II (10), and is characterized in that the spherical valve (14) is installed from the upper end of the shell (5), the guide sleeve II (10) is installed in a channel at the left end and the right end of the shell (5) respectively, the inner end of the guide sleeve II (10) is attached to the spherical valve (14), a tetrafluoro sealing ring (12), an inlet valve (11) and a wave spring (9) are sequentially installed in the guide sleeve II (10), an inner boss (21) is arranged at the inner end of the guide sleeve II (10), the tetrafluoro sealing ring (12) is abutted to the inner boss (21), the tetrafluoro sealing ring (12) is in contact with the spherical valve (14), a guide sleeve I (3) is arranged at the upper end of the shell (5), a sealing ring I (4) is arranged between the guide sleeve I (3) and the shell (5), the left end of the shell (5) is provided with a flange (17), the inner end of the flange (17) is inserted into the guide sleeve II (10), the right end of the shell (5) is provided with a pipe joint (7), and the inner end of the pipe joint (7) is inserted into the guide sleeve (7) and the wave spring (9) is in contact with the pipe joint (7).

2. A ball valve structure with double compensation for seal wear according to claim 1, characterized in that the left end of the housing (5) is provided with an A port (19), the right end of the housing (5) is provided with a B port (20), and the lower end of the housing (5) is provided with an inlet.

3. The ball valve structure with double compensation effects on abrasion of sealing elements according to claim 1, wherein the upper end of a spherical valve (14) penetrates through the upper portion of a guide sleeve I (3), a sealing ring VII (18) is arranged between the spherical valve (14) and the guide sleeve I (3), a sealing ring IV (13) is arranged between the lower portion of the spherical valve (14) and a shell (5), and the upper end of the spherical valve (14) is connected with a handle (1) through a screw (2).

4. The ball valve structure with double compensation effects on abrasion of sealing elements according to claim 1, wherein a sealing ring V (15) is arranged between a flange (17) and a shell (5), a sealing ring III (8) is respectively arranged between the flange (17) and a guide sleeve II (10) and between a pipe joint (7) and the guide sleeve II (10), and a sealing ring II (6) is arranged on the outer surface of the left end of the flange (17).

5. The ball valve structure with double compensation effects on abrasion of sealing elements according to claim 1, wherein a sealing ring II (6) is arranged between the pipe joint (7) and the shell (5), and the pipe joint (7) is connected with the shell (5) in a threaded mode.