CN212155855U

CN212155855U - Wear-resistant high-sealing gate valve

Info

Publication number: CN212155855U
Application number: CN202020220572.1U
Authority: CN
Inventors: 张瑾
Original assignee: Zhejiang Huaxing Valve Industry Co ltd
Current assignee: Zhejiang Huaxing Valve Industry Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-12-15
Anticipated expiration: 2030-02-27

Abstract

The utility model discloses a stand wear and tear high sealing gate valve, which comprises a valve body, the inner wall fixedly connected with disk seat of valve body, the one end activity laminating that the valve body inner wall was kept away from to the disk seat has the flashboard subassembly, the top fixedly connected with drive plate of flashboard subassembly, the top fixedly connected with deflector of drive plate, the bottom activity laminating of deflector has damping spring, damping spring keeps away from the one end fixedly connected with retainer plate of deflector, and retainer plate fixed connection is at the inner wall of valve body. The utility model discloses a first flange and second flange adopt bolted connection for be convenient for dismantle first flange and second flange, and when dismantling first flange and second flange, separate between drive tube and the drive plate, under damping spring's the tensile effect that resets this moment, make damping spring with the inside of drive plate top valve body, the convenience is changed the flashboard subassembly, changes through the flashboard subassembly to wearing and tearing, with the purpose that realizes stand wear and tear.

Description

Wear-resistant high-sealing gate valve

Technical Field

The utility model relates to a gate technical field specifically is a stand wear and tear high sealing gate valve.

Background

The valve is a control part in a fluid conveying system, generally installed between pipelines of the fluid conveying system, and can be opened or closed by controlling an opening and closing part through a hand wheel, the gate valve belongs to one type of valve, the opening and closing part of the gate valve is a gate plate, the movement direction of the gate plate is perpendicular to the fluid direction, the valve body and the gate plate of the traditional gate valve are sealed by adopting taper, square conical holes and square conical grooves matched with the gate plate are respectively arranged at the upper and lower positions of an inner cavity of the gate valve, and the sealing performance of the valve body when the valve body is opened and closed is ensured by depending on the sealing of the gate plate, the square conical holes and the square conical grooves.

However, in the prior art, when the valve body is opened and closed in actual use, the gate plate needs to perform vertical linear motion, but each motion of the gate plate inevitably rubs with the inner walls of the square conical hole and the square conical groove, when the friction frequency is too much, the gate plate, the square conical hole and the square conical groove are worn, the sealing performance cannot be guaranteed, water leakage is easily caused, and serious potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stand wear and tear high sealing gate valve to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the valve comprises a valve body, wherein a valve seat is fixedly connected to the inner wall of the valve body, a flashboard assembly is movably attached to one end, away from the inner wall of the valve body, of the valve seat, a drive plate is fixedly connected to the top of the flashboard assembly, a guide plate is fixedly connected to the top of the drive plate, a damping spring is movably attached to the bottom of the guide plate, a fixing ring is fixedly connected to one end, away from the guide plate, of the damping spring, the fixing ring is fixedly connected to the inner wall of the valve body, a drive pipe is movably attached to the top of the drive plate, a valve rod is fixedly connected to the top of the drive pipe, a first flange is fixedly connected to the top of the valve body, a second flange is fixedly connected to the top of the first flange through bolts, a valve cover is fixedly connected to the top of the second, and the top of the valve cover corresponding to the sealing filler is fixedly connected with a waterproof ring cover, the top of the waterproof ring cover is fixedly connected with a compression cover, and the waterproof ring cover and the compression cover are both rotationally connected with the surface of the valve rod.

Preferably, the number of the valve seats is two, the two valve seats are symmetrically arranged about the vertical axis of the midpoint of the valve body, and one ends of the opposite surfaces of the two valve seats are of arc-shaped structures.

Preferably, the top of the first flange is fixedly connected with a sealing gasket, and the sealing gasket is movably attached to the bottom of the second flange.

Preferably, the gate plate assembly comprises two gate plates, and the two gate plates are symmetrically arranged.

Preferably, two equal fixedly connected with rubber pad of one end of flashboard opposite face, the rubber pad is the rubber material component.

Preferably, the middle part fixedly connected with reference column of rubber pad, two the constant head tank has all been seted up to the one end of the corresponding reference column position of flashboard, and the surface of reference column and the inner wall activity of constant head tank peg graft, the through-hole has been seted up at the middle part of flashboard and rubber pad.

Preferably, the bottom of the drive plate corresponding to the arc-shaped structure of the valve seat is fixedly connected with a sealing ring.

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

1. the utility model discloses a first flange and second flange adopt bolted connection for be convenient for dismantle first flange and second flange, and when dismantling first flange and second flange, separate between drive tube and the drive plate, at this moment under damping spring's the tensile effect that resets, make damping spring with the inside of drive plate top valve body, conveniently change the flashboard subassembly, through changing the flashboard subassembly that wears out, in order to realize the purpose of stand wear and tear;

2. the utility model discloses when still contacting through two flashboards and disk seat simultaneously, can make two flashboards be close to each other and extrude the rubber pad for can reduce the rigid collision between flashboard and the disk seat, and change the rigid collision between flashboard and the disk seat and soft collision, thereby reduced the degree of wear of flashboard, and when two flashboards were close to each other, can play the effect of location through reference column cooperation constant head tank, prevent to take place the skew between two flashboards.

Drawings

FIG. 1 is a front sectional view of the whole structure of the wear-resistant high-sealing gate valve of the present invention;

FIG. 2 is a front sectional view of the gate plate assembly of the wear-resistant high-sealing gate valve of the present invention;

fig. 3 is the utility model relates to a stand wear and tear high sealing gate valve flashboard subassembly structure top view.

In the figure: 1. a valve body; 2. a valve seat; 3. a gate plate assembly; 31. a shutter plate; 32. a rubber pad; 33. a positioning column; 34. positioning a groove; 35. a through hole; 4. a drive plate; 5. a guide plate; 6. a damping spring; 7. a stationary ring; 8. a drive tube; 9. a valve stem; 10. a first flange; 11. a second flange; 12. a valve cover; 13. sealing and filling; 14. a waterproof ring cover; 15. a compression cover; 16. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the valve comprises a valve body 1, a valve seat 2 is fixedly mounted on the inner wall of the valve body 1, a gate plate assembly 3 is movably attached to one end, far away from the inner wall of the valve body 1, of the valve seat 2, a driving plate 4 is fixedly mounted on the top of the gate plate assembly 3, a guide plate 5 is fixedly mounted on the top of the driving plate 4, a damping spring 6 is movably attached to the bottom of the guide plate 5, a fixing ring 7 is fixedly mounted on one end, far away from the guide plate 5, of the damping spring 6, the fixing ring 7 is fixedly mounted on the inner wall of the valve body 1, a driving pipe 8 is movably attached to the top of the driving plate 4, a valve rod 9 is fixedly mounted on the top of the driving pipe 8, a first flange 10 is fixedly mounted on the top of the valve body 1, a second flange 11 is fixedly mounted on the top of the first flange 10 through bolts, a valve cover 12 is, and the top of the valve cover 12 corresponding to the sealing packing 13 is fixedly provided with a waterproof ring cover 14, the top of the waterproof ring cover 14 is fixedly provided with a pressing cover 15, and the waterproof ring cover 14 and the pressing cover 15 are both rotationally connected with the surface of the valve rod 9.

The quantity of disk seat 2 is two, and two disk seats 2 are symmetry axisymmetric setting about the vertical axis of valve body 1 mid point, and the one end of two disk seats 2 opposite face is the circular arc type structure.

The top of the first flange 10 is fixedly provided with a sealing gasket, and the sealing gasket is movably attached to the bottom of the second flange 11, so that the sealing gasket can seal the first flange 10 and the second flange 11.

The shutter assembly 3 includes two shutters 31, and the two shutters 31 are symmetrically disposed.

Rubber pads 32 are fixedly mounted at one ends of the opposite surfaces of the two gate plates 31, and the rubber pads 32 are rubber members.

Locating column 33 is fixedly installed in the middle part of rubber pad 32, locating groove 34 has all been seted up to the one end that two flashboards 31 correspond locating column 33 position, and the surface of locating column 33 is pegged graft with the inner wall activity of locating groove 34, through-hole 35 has been seted up in the middle part of flashboard 31 and rubber pad 32, when flashboard subassembly 3 is using, and when rubbing with the one end of disk seat 2, when contacting through two flashboards 31 and disk seat 2, can make two flashboards 31 be close to each other and extrude rubber pad 32, make can reduce the rigid collision between flashboard 31 and the disk seat 2, and change the rigid collision between flashboard 31 and the disk seat 2 and soft collision, thereby the degree of wear of flashboard 31 has been reduced, and when two flashboards 31 are close to each other, can play the effect of location through locating column 33 cooperation locating groove 34, prevent.

And a sealing ring 16 is fixedly arranged at the bottom of the driving plate 4 corresponding to the arc-shaped structure position of the valve seat 2.

The working principle is as follows: when in use, the utility model makes the valve rod 9 drive the driving pipe 8 to move downwards, makes the driving plate 4 drive the driving pipe 8 to move downwards, and makes the guide plate 5 guide the driving pipe 8 by arranging the guide plate 5, when the valve rod 9 drives the flashboard component 3 to move downwards through the driving pipe 8 and the driving plate 4, the damping spring 6 is in the compression state, the device is in the closed state, and when the valve rod 9 drives the driving pipe 8 to move upwards, the driving plate 4 is driven to move upwards under the reset stretching action of the damping spring 6, and makes the driving plate 4 and the guide plate 5 always located at the bottom of the driving pipe 8, and when the flashboard component 3 is seriously worn, because the first flange 10 and the second flange 11 are connected through bolts, the first flange 10 and the second flange 11 are convenient to be disassembled, and when the first flange 10 and the second flange 11 are disassembled, the separation between drive tube 8 and drive plate 4 is under damping spring 6's the tensile effect that resets this moment for damping spring 6 is convenient to be changed flashboard subassembly 3 with the inside of drive plate 4 top valve body 1, changes through flashboard subassembly 3 to wearing and tearing, in order to realize stand wear and tear purpose.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a stand wear and tear high sealing gate valve, includes valve body (1), its characterized in that: the inner wall of the valve body (1) is fixedly connected with a valve seat (2), one end, far away from the inner wall of the valve body (1), of the valve seat (2) is movably laminated with a gate plate component (3), the top of the gate plate component (3) is fixedly connected with a drive plate (4), the top of the drive plate (4) is fixedly connected with a guide plate (5), the bottom of the guide plate (5) is movably laminated with a damping spring (6), one end, far away from the guide plate (5), of the damping spring (6) is fixedly connected with a fixing ring (7), the fixing ring (7) is fixedly connected with the inner wall of the valve body (1), the top of the drive plate (4) is movably laminated with a drive pipe (8), the top of the drive pipe (8) is fixedly connected with a valve rod (9), the top of the valve body (1) is fixedly connected with a first flange (10), the top of the first flange (10) is, the top fixedly connected with valve gap (12) of second flange (11), valve gap (12) rotate to be connected on the surface of valve rod (9), the position on the corresponding valve rod (9) surface of valve gap (12) is filled with sealing filler (13), and the top fixedly connected with waterproof ring lid (14) of the corresponding sealing filler (13) of valve gap (12), the top fixedly connected with of waterproof ring lid (14) compresses tightly lid (15), and waterproof ring lid (14) and compress tightly lid (15) and all be connected with the surface rotation of valve rod (9).

2. A wear-resistant high-sealing gate valve according to claim 1, characterized in that: the number of the valve seats (2) is two, the two valve seats (2) are symmetrically arranged about the vertical axis of the midpoint of the valve body (1) in an axisymmetric manner, and one ends of the opposite surfaces of the two valve seats (2) are of arc-shaped structures.

3. A wear-resistant high-sealing gate valve according to claim 1, characterized in that: the top of the first flange (10) is fixedly connected with a sealing gasket, and the sealing gasket is movably attached to the bottom of the second flange (11).

4. A wear-resistant high-sealing gate valve according to claim 1, characterized in that: the gate plate assembly (3) comprises two gate plates (31), and the two gate plates (31) are symmetrically arranged.

5. The wear-resistant high-sealing gate valve according to claim 4, wherein: two equal fixedly connected with rubber pad (32) of one end of flashboard (31) opposite face, rubber pad (32) are the rubber material component.

6. The wear-resistant high-sealing gate valve according to claim 5, wherein: the middle part fixedly connected with reference column (33) of rubber pad (32), two constant head tank (34) have all been seted up to the one end that corresponding reference column (33) of flashboard (31) put, and the inner wall activity grafting of the surface of reference column (33) and constant head tank (34), through-hole (35) have been seted up in the middle part of flashboard (31) and rubber pad (32).

7. A wear-resistant high-sealing gate valve according to claim 1, characterized in that: and a sealing ring (16) is fixedly connected to the bottom of the drive plate (4) corresponding to the arc-shaped structure of the valve seat (2).