CN214699281U

CN214699281U - Wear-resistant high-sealing-performance knife gate valve

Info

Publication number: CN214699281U
Application number: CN202120873789.7U
Authority: CN
Inventors: 廖晓东
Original assignee: Yongjia Zhengding Machinery Manufacturing Co ltd
Current assignee: Yongjia Zhengding Machinery Manufacturing Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-12
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a knife gate valve of wear-resisting high leakproofness, the water-cooled double-layer valve comprises a valve body, the second sealing washer is installed to the inboard of valve body, first sealing washer is installed to the inboard of second sealing washer, the second sealing washer is provided with the support ring with the inboard of first sealing washer, the flashboard main part is installed to one side of first sealing washer, the inner wall that one side of flashboard main part is located the valve body is provided with two spacing heads, the outside sliding connection of flashboard main part upper end has the closing plate, the flashboard deflector is installed to the up end of closing plate, the up end fixed mounting of flashboard main part has the connecting seat, spacing lid is installed in the outside of connecting seat, the up end sliding connection of connecting seat has the connecting rod, adjustment handle is installed in the outside of connecting rod upper end. The utility model discloses a support seals the gate valve, effectively guarantees the leakproofness of structure when using, and can reduce the degree of wear when the flashboard is adjusted.

Description

Wear-resistant high-sealing-performance knife gate valve

Technical Field

The utility model relates to a sword type gate valve technical field specifically is a sword type gate valve of wear-resisting high leakproofness.

Background

With the rapid development of social economy, the pipeline conveying scale is larger and larger, so that the knife gate valve is used more and more, and the knife gate valve is formed by changing a flat plate valve plate into a knife-shaped valve plate on the basis of a common gate valve; the knife gate valve solves the problems of large flow resistance, large weight, difficult installation, large occupied area and the like of valves such as common gate valves, flat gate valves, ball valves, stop valves, regulating valves, butterfly valves and the like by the advantages of small volume, small flow resistance, light weight, easy installation, easy disassembly and the like, and can be divided into open-stem knife gate valves and hidden-stem knife gate valves according to the thread position of a valve rod.

However, the existing knife gate valve has low sealing performance in the use process, and the long-term opening and closing causes the abrasion of the surface of the structure, so that the maintenance is frequent; therefore, the existing requirements are not met, and a knife-type gate valve with wear resistance and high sealing performance is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a knife gate valve of wear-resisting high leakproofness to the current knife gate valve that proposes in solving above-mentioned background art is not high at the use leakproofness, opens and shuts for a long time and causes structure surface wear, overhauls frequent scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wear-resisting high leakproofness's sword type gate valve, includes the valve body, the second sealing washer is installed to the inboard of valve body, first sealing washer is installed to the inboard of second sealing washer, the second sealing washer is provided with the support ring with the inboard of first sealing washer, the flashboard main part is installed to one side of first sealing washer, the inner wall that one side of flashboard main part is located the valve body is provided with two spacing heads, outside sliding connection of flashboard main part upper end has the closing plate, the flashboard deflector is installed to the up end of closing plate, the up end fixed mounting of flashboard main part has the connecting seat, spacing lid is installed in the outside of connecting seat, the up end sliding connection of connecting seat has the connecting rod, adjustment handle is installed in the outside of connecting rod upper end, one side sliding connection of adjustment handle has the anti-deflection cone head.

Preferably, a gate valve support is fixedly mounted on the upper end face of the valve body, and pipe end connecting rings are arranged on two sides of the valve body.

Preferably, the inner side of the valve body is provided with a groove, the first sealing ring and the second sealing ring are both arranged on the inner side of the groove, and the support ring is connected with the valve body through the first sealing ring and the second sealing ring.

Preferably, the bottom end of the gate plate main body penetrates through the gate plate guide plate and the sealing plate respectively and extends to the inner sides of the valve body and the limiting head, and the gate plate guide plate is fixedly connected with the valve body through screws.

Preferably, the bottom end of the connecting seat is fixedly connected with the flashboard main body through a screw, the limiting cover is in threaded connection with the connecting seat, and the bottom end of the connecting rod extends to the inner side of the limiting cover and the connecting seat.

Preferably, the upper end of the connecting rod is connected with the adjusting handle through a flat key, a shaft sleeve is arranged on the outer side of the upper end of the adjusting handle, and the upper end of the adjusting handle is connected with the gate valve support through a shaft sleeve.

Preferably, one side of adjustment handle is provided with the toper constant head tank, the one side that the gate valve support was run through to the one end of preventing the drift cone head extends to the inboard of toper constant head tank.

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

1. the utility model discloses a regulating handle drives the connecting rod and rotates in the inboard of spacing lid and connecting seat, and then can realize the operation of opening and shutting of gate valve, is provided with the closing plate at the lower terminal surface of flashboard deflector, and the inboard of valve body installs first sealing washer and second sealing washer for can seal the operation when closing the state to the flashboard main part jointly through first sealing washer, second sealing washer and closing plate, improve the leakproofness;

2. the utility model discloses a pass through the support ring with first sealing washer and second sealing washer and be connected for be convenient for support first sealing washer and second sealing washer through the support ring, effectively reduce the flashboard main part to the degree of wear of valve body when opening and shutting, regulating handle does not take place to deflect when being convenient for to guarantee the gate valve through preventing inclined to one side conical head, and then keeps the stability of flashboard main part.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic view of a partial cross-sectional structure of the valve body of the present invention;

FIG. 3 is a schematic view of a partial cross-sectional structure of the connecting rod of the present invention;

fig. 4 is a schematic view of a partial section structure of the anti-deflection cone head of the present invention.

In the figure: 1. a gate valve support; 2. a shutter guide plate; 3. an adjusting handle; 4. a valve body; 5. a pipe end connecting ring; 6. a shutter body; 7. a limiting head; 8. a first seal ring; 9. a second seal ring; 10. a connecting rod; 11. a limiting cover; 12. a connecting seat; 13. a sealing plate; 14. a support ring; 15. prevent inclined to one side conical head.

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.

Referring to fig. 1 to 4, the present invention provides an embodiment: a wear-resistant high-sealing knife gate valve comprises a valve body 4, a second sealing ring 9 is installed on the inner side of the valve body 4, a first sealing ring 8 is installed on the inner side of the second sealing ring 9, a supporting ring 14 is arranged on the inner sides of the second sealing ring 9 and the first sealing ring 8, the first sealing ring 8 and the second sealing ring 9 are conveniently supported through the supporting ring 14, the abrasion degree of a flashboard main body 6 on the valve body 4 during opening and closing is effectively reduced, a flashboard main body 6 is installed on one side of the first sealing ring 8, two limiting heads 7 are arranged on one side of the flashboard main body 6, which is positioned on the inner wall of the valve body 4, the flashboard main body 6 is conveniently positioned and supported through the valve body 4 and the limiting heads 7, a sealing plate 13 is slidably connected to the outer side of the upper end of the flashboard main body 6, a flashboard guide plate 2 is installed on the upper end face of the sealing plate 13, a connecting seat 12 is fixedly installed on the upper end face of the flashboard main body 6, a limiting cover 11 is installed on the outer side of the connecting seat 12, connecting rod 10 is connected to the up end sliding connection of connecting seat 12, and adjustment handle 3 is installed in the outside of connecting rod 10 upper end, and one side sliding connection of adjustment handle 3 has anti-deflection cone head 15, wholly through sealing the support to the gate valve, effectively guarantees the leakproofness of structure when using, and can reduce the degree of wear when the flashboard is adjusted.

Further, a gate valve support 1 is fixedly mounted on the upper end face of the valve body 4, and pipe end connecting rings 5 are arranged on two sides of the valve body 4.

By adopting the technical scheme, the pipe end connecting ring 5 can be connected with the pipeline through the screw.

Further, the inboard of valve body 4 is provided with the recess, and first sealing washer 8 and second sealing washer 9 all set up the inboard at the recess, and support ring 14 is connected through first sealing washer 8 and second sealing washer 9 with valve body 4.

Through adopting above-mentioned technical scheme, be convenient for support first sealing washer 8 and second sealing washer 9 through support ring 14, effectively reduce flashboard main part 6 when opening and shutting the degree of wear to valve body 4.

Further, the bottom of flashboard main part 6 runs through flashboard deflector 2 and closing plate 13 respectively and extends to the inboard of valve body 4 and spacing head 7, and flashboard deflector 2 passes through the bolted connection with valve body 4 fixedly.

Through adopting above-mentioned technical scheme, be convenient for carry out location support to flashboard main part 6 through valve body 4 and spacing head 7.

Further, the bottom end of connecting seat 12 passes through the screw connection with flashboard main part 6 fixed, and spacing lid 11 passes through threaded connection with connecting seat 12, and the bottom end of connecting rod 10 extends to the inboard of spacing lid 11 and connecting seat 12.

Through adopting above-mentioned technical scheme, be convenient for fix a position the installation to connecting rod 10 through spacing lid 11 and connecting seat 12, and the dismouting of being convenient for.

Further, the upper end of the connecting rod 10 is connected with the adjusting handle 3 through a flat key, a shaft sleeve is arranged on the outer side of the upper end of the adjusting handle 3, and the upper end of the adjusting handle 3 is connected with the gate valve support 1 through a shaft sleeve.

Through adopting above-mentioned technical scheme, be convenient for drive connecting rod 10 through rotating adjustment handle 3 and carry out the regulation of height.

Further, one side of adjustment handle 3 is provided with the toper constant head tank, and the one end of preventing inclined to one side run through gate valve support 1 of anti-drift cone head 15 extends to the inboard of toper constant head tank.

Through adopting above-mentioned technical scheme, be convenient for guarantee through preventing inclined to one side cone head 15 that adjustment handle 3 does not take place to deflect when the gate valve is closed, and then keep the stability of flashboard main part 6.

The working principle is as follows: when in use, checking whether the functions of all parts are intact, fixedly connecting the gate valve bracket 1 and the valve body 4 through screws, fixedly welding the pipe end connecting ring 5 and the valve body 4, connecting the pipe end connecting ring 5 with a pipeline through screws, fixedly connecting the upper end of the gate plate main body 6 with the connecting seat 12 through screws, connecting the limiting cover 11 with the connecting seat 12 through threads, extending the bottom end of the connecting rod 10 to the inner sides of the limiting cover 11 and the connecting seat 12, operating the adjusting handle 3, wherein the adjusting handle 3 is in threaded connection with the gate valve bracket 1, and the adjusting handle 3 is connected with the connecting rod 10 through a flat key, so that the adjusting handle 3 drives the connecting rod 10 to rotate at the inner sides of the limiting cover 11 and the connecting seat 12, and the connecting rod 10 can drive the gate plate main body 6 to perform height adjustment at the inner side of the gate plate guide plate 2 through the limiting cover 11 and the connecting seat 12, and then can realize the opening and closing operation of the gate valve, there are closing plates 13 on the bottom end of the guide plate 2 of the gate plate, and the inboard of the valve block 4 installs the first seal ring 8 and second seal ring 9, make can seal the operation when the main body 6 of the gate plate is closed through the first seal ring 8, second seal ring 9 and closing plate 13 jointly, improve the leakproofness, and the first seal ring 8 is connected with second seal ring 9 through the support ring 14, make it easy to support the first seal ring 8 and second seal ring 9 through the support ring 14, effectively reduce the degree of abrasion to the valve block 4 when the main body 6 of the gate plate is opened and closed, there are conical locating slots on one side of the regulating handle 3, one end of the anti-deflection cone head 15 runs through one side of the gate valve support 1 and extends to the inboard of the conical locating slot, make it easy to guarantee that the regulating handle 3 will not deflect when the gate valve is closed through the anti-deflection cone head 15, thereby keeping the shutter main body 6 stable.

Claims

1. The utility model provides a knife gate valve of wear-resisting high leakproofness, includes valve body (4), its characterized in that: a second sealing ring (9) is installed on the inner side of the valve body (4), a first sealing ring (8) is installed on the inner side of the second sealing ring (9), a support ring (14) is arranged on the inner sides of the second sealing ring (9) and the first sealing ring (8), a flashboard main body (6) is installed on one side of the first sealing ring (8), two limiting heads (7) are arranged on the inner wall, located on the valve body (4), of one side of the flashboard main body (6), a sealing plate (13) is connected to the outer side of the upper end of the flashboard main body (6) in a sliding mode, a flashboard guide plate (2) is installed on the upper end face of the sealing plate (13), a connecting seat (12) is fixedly installed on the upper end face of the flashboard main body (6), a limiting cover (11) is installed on the outer side of the connecting seat (12), and a connecting rod (10) is connected to the upper end face of the connecting seat (12) in a sliding mode, adjusting handle (3) are installed in the outside of connecting rod (10) upper end, one side sliding connection of adjusting handle (3) has anti-drift cone head (15).

2. The wear-resistant high-sealing knife gate valve according to claim 1, characterized in that: the gate valve is characterized in that a gate valve support (1) is fixedly mounted on the upper end face of the valve body (4), and pipe end connecting rings (5) are arranged on two sides of the valve body (4).

3. The wear-resistant high-sealing knife gate valve according to claim 1, characterized in that: the inboard of valve body (4) is provided with the recess, first sealing washer (8) all set up the inboard at the recess with second sealing washer (9), support ring (14) are connected through first sealing washer (8) and second sealing washer (9) with valve body (4).

4. The wear-resistant high-sealing knife gate valve according to claim 1, characterized in that: the bottom of flashboard main part (6) runs through flashboard deflector (2) and closing plate (13) respectively and extends to the inboard of valve body (4) and spacing head (7), flashboard deflector (2) pass through the screw connection with valve body (4) and fix.

5. The wear-resistant high-sealing knife gate valve according to claim 1, characterized in that: the bottom end of the connecting seat (12) is fixedly connected with the flashboard main body (6) through screws, the limiting cover (11) is connected with the connecting seat (12) through threads, and the bottom end of the connecting rod (10) extends to the inner side of the limiting cover (11) and the connecting seat (12).

6. The wear-resistant high-sealing knife gate valve according to claim 2, characterized in that: the upper end of connecting rod (10) is connected through the parallel key with adjustment handle (3), the outside of adjustment handle (3) upper end is provided with the axle sleeve, the upper end and the gate valve support (1) of adjustment handle (3) pass through the axle sleeve and are connected.

7. The wear-resistant high-sealing knife gate valve according to claim 2, characterized in that: one side of adjustment handle (3) is provided with the toper constant head tank, the one side that the gate valve support (1) was run through to the one end of preventing inclined to one side of awl head (15) extends to the inboard of toper constant head tank.