CN212177933U - Forced sealing structure of ball valve - Google Patents

Forced sealing structure of ball valve Download PDF

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Publication number
CN212177933U
CN212177933U CN202020659696.XU CN202020659696U CN212177933U CN 212177933 U CN212177933 U CN 212177933U CN 202020659696 U CN202020659696 U CN 202020659696U CN 212177933 U CN212177933 U CN 212177933U
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China
Prior art keywords
hole
valve
disk seat
seal
screw
Prior art date
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Active
Application number
CN202020659696.XU
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Chinese (zh)
Inventor
周宏韬
姜燕
徐翠翠
周丹凤
陆凯伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Shentong Valve Co Ltd
Original Assignee
Jiangsu Shentong Valve Co Ltd
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Priority to CN202020659696.XU priority Critical patent/CN212177933U/en
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Publication of CN212177933U publication Critical patent/CN212177933U/en
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Abstract

The utility model provides a ball valve forces seal structure, includes valve body, disk seat, is equipped with the ejector pad on the disk seat, is equipped with the hole on the circumference of disk seat position on the valve body, and the hole is two sections, and one section is the screw hole, and one section is the unthreaded hole, is equipped with thrust screw in the screw hole, and thrust screw butt ejector pad, the design has the seal groove on the unthreaded hole, is equipped with the sealing washer in the seal groove. The beneficial effects of the utility model are that, can realize that the valve is not enough at sealed specific pressure, under the poor wait condition of sealing performance, provide extra sealed specific pressure for the valve through external force, realize the effect that the valve forced seal.

Description

Forced sealing structure of ball valve
Technical Field
The utility model relates to a ball valve, especially a ball valve forced seal structure.
Background
The main seal structure of present ball valve has metal seal, two kinds of structures of non-metal seal, it mainly relies on the spring force, medium power, or the pretightning force that the bolt provided when assembling makes the sealing washer tightly laminate on the spheroid, thereby reach sealed purpose, but whatever kind of mode, its sealed specific pressure has been locked when accomplishing the valve assembly, all can't realize online adjustment, appear sealed specific pressure not enough promptly at the valve, when defects such as sealed face mar can't seal, must maintain the valve, can't realize forcing sealed effect to the valve when proruption situation.
SUMMERY OF THE UTILITY MODEL
In order to overcome the prior art problem, the utility model provides a ball valve forces seal structure.
The technical scheme of the utility model, a ball valve forces seal structure, including valve body, disk seat, be equipped with the ejector pad on the disk seat, be equipped with the hole on the disk seat position circumference on the valve body, the hole is two sections, and one section is the screw hole, and one section is the unthreaded hole, and the threaded hole is equipped with thrust screw, and thrust screw butt ejector pad has the seal groove on, and the sealing washer is equipped with in the seal groove in the design on the unthreaded hole.
The beneficial effects of the utility model are that, can realize that the valve is not enough at sealed specific pressure, under the poor wait condition of sealing performance, provide extra sealed specific pressure for the valve through external force, realize the effect that the valve forced seal.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the portion A of FIG. 1 with a thrust screw and a seal ring installed therein;
FIG. 3 is an enlarged view of the hole in section B of FIG. 1 without the thrust screw and seal ring.
In the figure: 1. a valve body; 2. a valve seat; 3. a thrust screw; 4. a seal ring; 5. a push block 6, a threaded hole; 7. a sealing groove; 8. and (4) a light hole.
Detailed Description
As shown in the figure, a ball valve forced sealing structure, including valve body 1, disk seat 2, be equipped with ejector pad 5 on disk seat 2, be equipped with the hole on disk seat 2 position circumference on valve body 1, the hole is two sections, and one section is threaded hole 6, and one section is unthreaded hole 8, is equipped with thrust screw 3 in the threaded hole 6, and 3 butt ejector pads 5 of thrust screw, unthreaded hole 8 go up the design have a seal groove 7, are equipped with sealing washer 4 in the seal groove 7.
The working principle is as follows: when the valve has the conditions of insufficient sealing specific pressure, poor sealing performance and the like, the push block and the valve seat can be integrally forced to the ball body in a mode of uniformly screwing a circle of thrust screw, and the forced sealing specific pressure is provided by mechanical external force, so that the sealing effect between the ball body and the valve seat is realized.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (1)

1. The utility model provides a ball valve forces seal structure, includes valve body, disk seat, its characterized in that, be equipped with the ejector pad on the disk seat, be equipped with the hole on the disk seat position circumference on the valve body, the hole is two sections, and one section is the screw hole, and one section is the unthreaded hole, the threaded hole is equipped with thrust screw in, thrust screw butt ejector pad, the design has the seal groove on the unthreaded hole, is equipped with the sealing washer in the seal groove.
CN202020659696.XU 2020-04-27 2020-04-27 Forced sealing structure of ball valve Active CN212177933U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020659696.XU CN212177933U (en) 2020-04-27 2020-04-27 Forced sealing structure of ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020659696.XU CN212177933U (en) 2020-04-27 2020-04-27 Forced sealing structure of ball valve

Publications (1)

Publication Number Publication Date
CN212177933U true CN212177933U (en) 2020-12-18

Family

ID=73764487

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020659696.XU Active CN212177933U (en) 2020-04-27 2020-04-27 Forced sealing structure of ball valve

Country Status (1)

Country Link
CN (1) CN212177933U (en)

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