CN210687065U

CN210687065U - Bidirectional sealing eccentric half ball valve

Info

Publication number: CN210687065U
Application number: CN201921421917.3U
Authority: CN
Inventors: 汪庆湘; 杨成; 刘浩; 欧立涛; 苏大明; 谭勇立; 曹叶芝
Original assignee: ZHUZHOU SOUTHERN VALVE CO Ltd
Current assignee: Xiangtan Zhuhua Dawei Machinery Manufacturing Co.,Ltd.; ZHUZHOU SOUTHERN VALVE Co.,Ltd.
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-05
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to the technical field of valves, a two way seal eccentric half ball valve is disclosed, including valve body and disk seat, the valve body exit end is equipped with the step and carries on spacingly to the disk seat position, and the valve body exit end corresponds the department in the installation of disk seat outer lane and is equipped with the recess, and the disk seat outer lane corresponds the department in the recess setting position and has arranged a plurality of first holding screw, and first holding screw stretches out and makes along the axial removal of valve body in the recess and can follow the disk seat in the tip of disk seat outer lane stretches into the recess. No matter the medium is the forward overflow or the reverse overflow, the movable valve seat can timely perform the following movement compensation on the deformed hemisphere under the pressure action of the medium flow, so that the eccentric hemisphere valve is always in a better sealing state, and the defect of untight sealing is avoided.

Description

Bidirectional sealing eccentric half ball valve

Technical Field

The utility model relates to the technical field of valves, specifically, relate to a two-way seal eccentric half ball valve.

Background

Traditional eccentric hemisphere valve is one-way excess flow valve, and its disk seat is fixed, only has better sealed effect to the medium when the forward overflows, when making the medium reverse overflow in eccentric hemisphere valve, the hemisphere can produce the deformation, and fixed disk seat can't realize reverse seal along with the hemisphere that warp, will produce and leak, and consequently, traditional eccentric hemisphere valve suitability is not strong.

Disclosure of Invention

The utility model provides a technical problem lie in overcoming prior art's defect, provide a two-way sealing eccentric half-ball valve that the deformation that the disk seat can be immediately produced carries out the compensation.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a two way seal eccentric half ball valve, includes valve body and disk seat, and the valve body exit end is equipped with the step and carries on spacingly to the disk seat position, and the valve body exit end is equipped with the recess in the installation department of corresponding of disk seat outer lane, and the disk seat outer lane sets up the position in the recess and corresponds the department and has arranged a plurality of holding screw, and the holding screw stretches out in the tip of disk seat outer lane stretches into the recess and can follow the disk seat and do along the axial removal of valve body in the recess.

Further, the first set screws are uniformly arranged around the outer ring of the valve seat.

Furthermore, a second set screw is arranged at the step of the valve body, and the second set screw is perpendicular to the end face of the valve seat and is pressed against the valve seat.

Furthermore, the second set screws are uniformly arranged along the step end face of the valve body.

Compared with the prior art, the utility model discloses following beneficial effect has:

no matter the medium is that the forward overflows or overflows in the reverse direction, movable type's disk seat all can follow the removal compensation in time to taking place the hemisphere that warp under the pressure effect of medium flow, makes eccentric hemisphere valve seal pair be in a better encapsulated situation all the time, avoids producing and leaks.

The second set screw can come the top pressure disk seat by manual operation elasticity and realize forward seal for eccentric hemisphere valve can adjust to the best sealed state of use through experimental correction before putting into operation.

Drawings

Fig. 1 is a schematic structural view of a bidirectional sealing eccentric half-ball valve according to embodiment 1;

fig. 2 is a partially enlarged view of fig. 1.

Detailed Description

The invention will be further described with reference to specific embodiments, wherein the drawings are designed solely for the purpose of illustration and not as a definition of the limits of the patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 and 2, a two-way sealing eccentric hemisphere valve is provided, which includes a valve body 1, a valve seat 2 and a hemisphere 3, an outlet end of the valve body 1 is provided with a step 11 for limiting a position of the valve seat 2, an outlet end of the valve body 1 is provided with a groove 12 at a corresponding position of an installation position of an outer ring of the valve seat, the outer ring of the valve seat is provided with a plurality of uniformly distributed first set screws 4 at a corresponding position of the arrangement position of the groove 12, the end of each first set screw 4 extending out of the outer ring of the valve seat extends into the groove 12, the width dimension of the groove is larger than the end dimension of each first set screw, the valve seat 2 is located between the hemisphere and the step of the valve body and is in non-fixed installation, when water flows in a forward direction or a reverse direction, the hemisphere 3 can generate forward or reverse deformation, the valve seat 2 can also make corresponding displacement according to a pressure condition of the.

Specifically, first holding screw mainly plays limiting displacement to the disk seat, gives the certain space that removes compensation hemisphere deformation of disk seat promptly, makes disk seat and hemisphere can be in the contact seal state all the time.

In addition, the valve body step 11 is also provided with a second set screw 5 in a penetrating manner, the second set screw 5 is perpendicular to the end face of the valve seat 2 and presses against the valve seat, and the second set screw is mainly used for determining the position of the valve seat according to the deformation condition of the hemisphere when the eccentric hemisphere valve is subjected to test adjustment in the forward sealing manner, so that the optimal sealing effect is ensured.

In the bidirectional sealing eccentric half-ball valve, the second set screw is used for axially jacking the valve seat to realize forward sealing of the valve; the valve seat can be pushed to move forwards automatically under the action of reverse water pressure, reverse sealing of the valve is achieved, and the larger the reverse water pressure is, the better the sealing effect is.

It should be understood that the above-mentioned embodiments are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a two way seal eccentric half ball valve, includes valve body and disk seat, and the valve body exit end is equipped with the step and carries on spacingly to the disk seat position, and its characterized in that, the valve body exit end correspond the department at the installation of disk seat outer lane and are equipped with the recess, and the disk seat outer lane has arranged a plurality of holding screws in recess setting position correspondence department, and a holding screw stretches out in the tip of disk seat outer lane stretches into the recess and can follow the disk seat and do along the axial removal of valve body in the recess.

2. The bi-directional sealing eccentric hemispherical valve as recited in claim 1, wherein the first set screws are evenly disposed around the outer periphery of the valve seat.

3. The two-way sealing eccentric half-ball valve as claimed in claim 1, wherein a second set screw is provided at the step of the valve body, and the second set screw is perpendicular to the end face of the valve seat and presses against the valve seat.

4. The bi-directional sealing eccentric hemispherical valve as recited in claim 3, wherein the second set screws are uniformly arranged along the stepped end surface of the valve body.