CN205298613U

CN205298613U - Gate valve

Info

Publication number: CN205298613U
Application number: CN201620018608.1U
Authority: CN
Inventors: 许显朝; 叶云飞; 林宏立; 陈文丰; 朱志远; 朱蔓茹; 伍晓娟
Original assignee: ZHIYUAN VALVE ACCESSORIES Co Ltd
Current assignee: Zhejiang Zhiyuan Valve Technology Co., Ltd.
Priority date: 2016-01-08
Filing date: 2016-01-08
Publication date: 2016-06-08
Anticipated expiration: 2026-01-08

Abstract

The utility model discloses a gate valve, including valve body and flashboard, the flashboard be located the valve body, the flashboard be narrow wedge structure under the width, just jagged groove is all offered at the up end middle part and the lower terminal surface middle part of flashboard, the breach inslot installed belleville spring, all be provided with the disk seat between the both sides of flashboard and the valve body, just the slope setting of laminating mutually with the flashboard is personally submitted to the inner of disk seat, the pressure equipment has the cross -section to be the U -shaped elastic metal ring of U -shaped between the outer terminal surface of disk seat and the valve body, and the wherein one end and the outer terminal surface welded fastening of disk seat, the other end of U -shaped elastic metal ring of U -shaped elastic metal ring extend along the orientation of laminating mutually with the valve body to compress tightly and fix on the valve body through compressing tightly fixing device. Through adopting the structure mentioned above, the utility model provides a better gate valve that just can be applicable to high temperature working condition of sealing performance.

Description

A kind of gate valve

Technical field

This utility model relates to a kind of valve, is specifically related to a kind of gate valve.

Background technology

At present, gate valve has generally included valve body and flashboard, existing flashboard is mostly slab construction, lack flexibility compensation, and realize sealing generally by O RunddichtringO between flashboard and valve body, it is poor that such structure arranges the sealing property making existing gate valve, and because O RunddichtringO cannot be applicable to hot environment, therefore also makes existing gate valve cannot be applicable to worst hot case.

Summary of the invention

For the deficiencies in the prior art, it is better and can be suitably used for the gate valve of worst hot case that this utility model provides a kind of sealing property.

For achieving the above object, this utility model provides a kind of gate valve, include valve body and flashboard, described flashboard is positioned at valve body, described flashboard is wedge structure wide at the top and narrow at the bottom, and all offer gap slot in the middle part of the upper surface of described flashboard and in the middle part of lower surface, it is equiped with disk spring in described gap slot, it is provided with valve seat between both sides and the valve body of described flashboard, and the inner face of described valve seat in and being obliquely installed that flashboard fits, the U-shaped elastic metallic ring that cross section is U-shaped it is pressed with between outer face and the valve body of described valve seat, wherein one end of U-shaped elastic metallic ring and valve seat outer face are welded and fixed, the direction that other end edge and the valve body of U-shaped elastic metallic ring fit extends, and be pressed abd fixed on valve body by clamping fixture.

The beneficial effects of the utility model are: adopt said structure, the wedge structure being wide at the top and narrow at the bottom due to described flashboard is arranged, and the inner face of described valve seat in and being obliquely installed that flashboard fits, therefore when flashboard moves down cut out valve gradually, will be more slotting more tight between flashboard and valve seat, thus being effectively lifted at after valve completely closes, the sealing property between flashboard and valve seat. Simultaneously, because of in the middle part of the upper surface of described flashboard and all offer gap slot in the middle part of lower surface, it is equiped with disk spring in described gap slot, and also it is pressed with, between outer face and the valve body of described valve seat, the U-shaped elastic metallic ring that cross section is U-shaped, therefore under the Double spring compensating action of described disk spring and U-shaped elastic metallic ring, the sealing property contacted between flashboard with valve seat can be promoted further, and because described disk spring and U-shaped elastic metallic ring are all suitable in hot environment, hence in so that flashboard provided by the utility model can be suitably used for worst hot case.

This utility model can be further arranged to described clamping fixture and include hold-down ring, a pushing out ring, housing screw and pendant collet, described support ring set is loaded on valve seat, the axial one end propping up pushing out ring is fixed by pendant collet and valve body, described hold-down ring is between the axial other end and U-shaped elastic metallic ring of described pushing out ring, described housing screw is arranged on a pushing out ring, and be connected with one end end face of hold-down ring, the other end end face of described hold-down ring presses on this end that U-shaped elastic metallic ring contacts with valve body.

Adopting and arrange further, described clamping fixture adopts hold-down ring, a pushing out ring, housing screw and pendant collet to connect and compose, simple in construction, easy accessibility. Pass through to rotatably compress screw simultaneously and can also regulate the hold-down ring thrust to U-shaped elastic metallic ring.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the I portion enlarged drawing of Fig. 1.

Detailed description of the invention

Such as Fig. 1, a kind of gate valve is given shown in 2, include valve body 1 and flashboard 2, described flashboard 2 is positioned at valve body 1, described flashboard 2 is wedge structure wide at the top and narrow at the bottom, and all offer gap slot 21 in the middle part of the upper surface of described flashboard 2 and in the middle part of lower surface, it is equiped with disk spring 3 in described gap slot 21, it is provided with valve seat 4 between both sides and the valve body 1 of described flashboard 2, and the inner face 41 of described valve seat 4 in and being obliquely installed that flashboard 2 fits, the U-shaped elastic metallic ring 5 that cross section is U-shaped it is pressed with between outer face 42 and the valve body 1 of described valve seat 4, wherein one end 51 and the valve seat outer face 42 of U-shaped elastic metallic ring 5 are welded and fixed, the other end 52 of U-shaped elastic metallic ring 5 extends along the direction fitted with valve body 1, and be pressed abd fixed on valve body 1 by clamping fixture 6. described clamping fixture 6 includes hold-down ring 61, a pushing out ring 62, housing screw 63 and pendant collet 64, a described pushing out ring 62 is set on valve seat 4, the axial one end propping up pushing out ring 62 is fixed with valve body 1 by pendant collet 64, described hold-down ring 61 is between the axial other end and U-shaped elastic metallic ring 5 of described pushing out ring 62, described housing screw 63 is arranged on a pushing out ring 62, and be connected with one end end face of hold-down ring 61, the other end end face of described hold-down ring 61 presses on this end that U-shaped elastic metallic ring 5 contacts with valve body 1. by adopting said structure, it is better and can be suitably used for the gate valve of worst hot case that this utility model provides a kind of sealing property.

Claims

1. a gate valve, include valve body and flashboard, described flashboard is positioned at valve body, it is characterized in that: described flashboard is wedge structure wide at the top and narrow at the bottom, and all offer gap slot in the middle part of the upper surface of described flashboard and in the middle part of lower surface, it is equiped with disk spring in described gap slot, it is provided with valve seat between both sides and the valve body of described flashboard, and the inner face of described valve seat in and being obliquely installed that flashboard fits, the U-shaped elastic metallic ring that cross section is U-shaped it is pressed with between outer face and the valve body of described valve seat, wherein one end of U-shaped elastic metallic ring and valve seat outer face are welded and fixed, the direction that other end edge and the valve body of U-shaped elastic metallic ring fit extends, and be pressed abd fixed on valve body by clamping fixture.

2. a kind of gate valve according to claim 1, it is characterized in that: described clamping fixture includes hold-down ring, a pushing out ring, housing screw and pendant collet, described support ring set is loaded on valve seat, the axial one end propping up pushing out ring is fixed by pendant collet and valve body, described hold-down ring is between the axial other end and U-shaped elastic metallic ring of described pushing out ring, described housing screw is arranged on a pushing out ring, and be connected with one end end face of hold-down ring, the other end end face of described hold-down ring presses on this end that U-shaped elastic metallic ring contacts with valve body.