CN218818276U

CN218818276U - Valve gate structure

Info

Publication number: CN218818276U
Application number: CN202223121260.3U
Authority: CN
Inventors: 黄志平; 刘华顺
Original assignee: Xiamen Zuanbo Energy Technology Co ltd
Current assignee: Xiamen Zuanbo Energy Technology Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-07
Anticipated expiration: 2032-11-23

Abstract

The utility model relates to the technical field of valves, in particular to a valve flashboard structure, wherein a semi-circular groove is arranged on the sealing surface of the flashboard, and a semi-circular PTFE sealing ring for sealing is filled in the semi-circular groove; guide blocks are arranged on two sides of the surface of the flashboard and are symmetrical with respect to the central axis of the flashboard; the surface of flashboard still is provided with recess, circular seal circle and closed groove. The utility model discloses not only sealed effectual, guaranteed that the flashboard does not take place skew and swing phenomenon in the valve body, can alleviate the weight of flashboard moreover, reduce the moment of valve.

Description

Valve gate structure

Technical Field

The utility model relates to the technical field of valves, specifically be a valve flashboard structure.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is generally applied to the fields of chemical industry, natural gas and metallurgy and gas or liquid conveying pipelines, and the most important component part in the valve is a flashboard.

At present, the existing gate plate and the valve body have poor sealing effect and are easy to cause the problem of side leakage due to large gate diameter and high pressure; meanwhile, when the existing flashboard is lifted, the left side and the right side of the flashboard are not provided with a guide structure, so that the flashboard can deviate and swing in the valve body; and the weight of the existing gate plate is large, and the moment of the valve is seriously increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve flashboard structure to it is big to propose the unable former valve bore of solving of flashboard among the above-mentioned background art, and pressure is high, difficult sealed problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: a semi-circular groove is formed in a sealing surface of the surface of a gate plate, and a semi-circular Teflon sealing ring for sealing is filled in the semi-circular groove; the two sides of the surface of the flashboard are provided with guide blocks, and the guide blocks are symmetrical relative to the central axis of the flashboard; the surface of flashboard still is provided with recess, circular seal circle and closed groove.

Preferably, the longitudinal section of the flashboard is of a flush wedge-shaped structure, and the structure can better ensure the sealing performance of the valve.

Preferably, the valve body surface of guide block position department has seted up the guide way, and guide way and guide block sliding fit each other to take place skew and swing when avoiding moving.

Preferably, the grooves are arranged at the central position of the gate plate, and the grooves are arranged in two groups, and the two groups of grooves are symmetrical about the central line of the gate plate, and simultaneously the grooves are used for reducing the weight of the gate plate and reducing the moment of the valve.

Preferably, the circular sealing ring is embedded in the circular groove formed in the top of the flashboard, and the circular sealing ring and the circular groove are tightly attached and sealed with each other.

Preferably, the sealed groove is seted up on the side at flashboard top, and the inside of sealed groove is inlayed and is had the tetrafluoro sealed pad to the surface of tetrafluoro sealed pad closely laminates with the inboard of valve body each other.

Compared with the prior art, the beneficial effects of the utility model are that: the sealing surface of the valve flashboard structure is sealed by a semicircular tetrafluoro sealing ring, the top surface of the flashboard is sealed by a circular sealing ring so as to increase the sealing effect, and meanwhile, the side surface of the flashboard is provided with a sealed groove and is embedded with a tetrafluoro sealing gasket, so that the problem of side leakage can be solved; meanwhile, the gate plate is driven by a ball screw to lift, and guide blocks are arranged on the left side and the right side of the gate plate, so that the gate plate is prevented from deviating and swinging in the valve body; the sealing surface of the flashboard adopts a uniform wedge-shaped structure, so that the sealing property of the valve body can be better ensured; the middle of flashboard is designed with a groove, which can reduce the weight of flashboard and the moment of valve.

Drawings

Fig. 1 is a schematic view of the valve gate of the present invention;

fig. 2 is a schematic view of the top enlarged structure of the present invention;

FIG. 3 is a schematic view of the cross-sectional enlarged structure of the shutter of the present invention;

fig. 4 is the rear view enlarged structure schematic diagram of the shutter of the present invention.

In the figure: 1. a valve body; 11. fixing the bolt; 2. a circular seal ring; 3. a shutter plate; 4. a closed groove; 5. a semicircular tetrafluoro seal ring; 51. a semicircular groove; 6. a guide block; 7. and (4) a groove.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.

The utility model provides a pair of valve flashboard structure can use on as shown in figure 1 valve body 1, and the longitudinal section of flashboard 3 is neat wedge structure, and the leakproofness of assurance valve that this structure can be better, and flashboard 3 mutually supports with 1 inside wedge groove of valve body simultaneously.

Further, as shown in fig. 2, a semicircular groove 51 is formed in a sealing surface of the shutter 3, and a semicircular tetrafluoro seal ring 5 for sealing is filled in the semicircular groove 51; guide blocks 6 are installed on two sides of the surface of the gate plate 3, guide grooves are formed in the surface of the valve body 1 at the positions of the guide blocks 6, the guide grooves and the guide blocks 6 are in sliding fit with each other, so that deviation and swinging are avoided during movement, and the guide blocks 6 are symmetrical about the central axis of the gate plate 3.

During implementation, the lifting of the flashboard 3 is driven by the ball screw, and the guide blocks 6 are arranged on the left side and the right side of the flashboard 3, so that the flashboard 3 is prevented from deviating and swinging in the valve body 1.

Further, as shown in fig. 3 and 4, the surface of the gate plate 3 is further provided with a groove 7, a circular sealing ring 2 and a sealed groove 4, the groove 7 is arranged at the central position of the gate plate 3, the grooves 7 are provided with two groups, the two groups of grooves 7 are symmetrical about the central line of the gate plate 3, the grooves 7 are used for reducing the weight of the gate plate 3 and reducing the moment of the valve, the circular sealing ring 2 is embedded in the top of the gate plate 3 and is provided with the inside of the circular groove, the circular sealing ring 2 and the circular groove are tightly attached to each other for sealing, the sealed groove 4 is arranged on the side surface of the top of the gate plate 3 and is embedded with a tetrafluoro sealing gasket, and the outer surface of the tetrafluoro sealing gasket is tightly attached to the inner side of the valve body 1.

During the implementation, the sealed face of flashboard 3 adopts semi-circular tetrafluoro sealing washer 5 to seal, and the top surface of flashboard 3 adopts circular sealing washer 2 to seal to increase sealed effect, set up airtight groove 4 simultaneously in the side of flashboard 3, and the embedding tetrafluoro is sealed fills up, can solve the edge leakage problem.

When the sealing structure is used, the sealing surface of the flashboard 3 is sealed by the semicircular tetrafluoro seal ring 5, the top surface of the flashboard 3 is sealed by the circular seal ring 2 so as to increase the sealing effect, and meanwhile, the side surface of the flashboard 3 is provided with the sealed groove 4 and is embedded with the tetrafluoro seal gasket, so that the problem of side leakage can be solved; meanwhile, the gate plate 3 is driven by a ball screw to lift, and the guide blocks 6 are arranged on the left side and the right side of the gate plate 3, so that the gate plate 3 is prevented from deviating and swinging in the valve body 1; the sealing surface of the flashboard 3 adopts a flush wedge-shaped structure, so that the sealing property of the valve body 1 can be better ensured; the middle of the gate plate 3 is provided with a groove 7, so that the weight of the gate plate 3 can be reduced, and the moment of the valve can be reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

Claims

1. The valve flashboard structure is characterized in that a semi-circular groove (51) is formed in a sealing surface of the flashboard (3), and a semi-circular Teflon sealing ring (5) for sealing is filled in the semi-circular groove (51); the two sides of the surface of the flashboard (3) are provided with guide blocks (6), and the guide blocks (6) are symmetrical about the central axis of the flashboard (3); the surface of flashboard (3) still is provided with recess (7), circular seal ring (2) and closed groove (4).

2. The valve gate structure of claim 1, wherein: the longitudinal section of the flashboard (3) is of a flush wedge-shaped structure, and the structure can better ensure the sealing property of the valve.

3. The valve gate structure of claim 1, wherein: the valve body (1) surface of guide block (6) position department has seted up the guide way, and guide way and guide block (6) sliding fit each other to take place skew and swing when avoiding moving.

4. The valve gate structure of claim 1, wherein: the grooves (7) are formed in the center of the flashboard (3), two groups of grooves (7) are formed in the grooves (7), the two groups of grooves (7) are symmetrical relative to the center line of the flashboard (3), and meanwhile the grooves (7) are used for reducing the weight of the flashboard (3) and reducing the moment of the valve.

5. The valve gate structure of claim 1, wherein: the circular sealing ring (2) is embedded in the circular groove formed in the top of the flashboard (3), and the circular sealing ring (2) and the circular groove are tightly attached and sealed with each other.

6. The valve gate plate structure of claim 1, wherein: airtight groove (4) are seted up on the side at flashboard (3) top, and the inside of airtight groove (4) is inlayed and is had the sealed pad of tetrafluoro to the sealed surface of tetrafluoro closely laminates with the inboard of valve body (1) each other.