CN216143209U

CN216143209U - High-performance high-pressure flat plate type gate valve

Info

Publication number: CN216143209U
Application number: CN202122071263.XU
Authority: CN
Inventors: 柏广才; 迮爱梅
Original assignee: Jiangsu Pufite Intelligent Technology Co ltd
Current assignee: Jiangsu Pufite Intelligent Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-29
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a high-performance high-pressure flat gate valve which comprises a valve body, wherein a connecting shell is arranged at the top end of the valve body, mounting base plates are fixedly connected to two sides of the valve body respectively, and a fixing cylinder is arranged at the top end of the connecting shell. This flat gate valve of high performance high pressure is provided with seal chamber respectively through the both sides inside the valve body, will install the sealing washer through the seal chamber who sets up in the inside both sides of valve body when using fixedly, and the sealing washer adopts the high performance sealing washer, the sealing principle relies on the pretightning force of loading in seal chamber and lip limit hug closely seal chamber surface, prevent revealing the passageway and obtain sealed effect, and when medium pressure is used, thereby seal chamber surface is hugged closely further to sealing washer lip limit reinforcing blocks the sealed effect of revealing the passageway, the highest pressure can reach 20000PSI, satisfy the use of high requirement occasion of high pressure, the problem of high pressure resistance can not enough has been solved.

Description

High-performance high-pressure flat plate type gate valve

Technical Field

The utility model relates to the technical field of gate valves, in particular to a high-performance high-pressure flat plate type gate valve.

Background

The gate valve is a shutter plate, the movement direction of the shutter plate is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and can not be adjusted and throttled, wherein the shutter plate is a flat plate type gate valve called a flat plate type gate valve, and the flat plate type gate valve can be divided into a manual flat plate gate valve, a pneumatic flat plate gate valve and an electric flat plate gate valve according to different driving modes, and is mainly applied to petroleum and natural gas transportation, pipelines with suspended particle media, tap water engineering and the like. However, the existing flat gate valve still has the problem of insufficient high pressure resistance in the actual use process. To this end we propose a high performance high pressure flat gate valve to address these problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-performance high-pressure flat gate valve to solve the problem of insufficient high-pressure resistance in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high performance high pressure flat gate valve, includes the valve body, the top of valve body is provided with the connection shell, the both sides difference fixedly connected with installation backing plate of valve body, the top of connection shell is provided with solid fixed cylinder, the inside intermediate position department of valve body is pegged graft and is had the flashboard, the inside of valve body is provided with the runner, the top fixedly connected with valve rod of flashboard, the inside both sides of valve body are provided with seal chamber respectively, the top fixedly connected with lifter of valve rod.

Preferably, first fixing screw rods are uniformly inserted between the top end of the valve body and the bottom end of the connecting shell, first fixing screw caps are respectively sleeved at two ends of the outer portion of each first fixing screw rod, second fixing screw rods uniformly penetrate between the top end of the connecting shell and the bottom end of the fixing cylinder, and second fixing screw caps are respectively sleeved at two ends of the outer portion of each second fixing screw rod.

Preferably, a guide groove is formed in the fixed cylinder, and the top end of the lifting rod penetrates through the guide groove.

Preferably, the top end swing joint of fixed section of thick bamboo has the carousel, the inside of carousel is run through on the top of lifter, the outside of lifter is provided with trapezoidal thread, the inside of carousel is provided with the internal thread.

Preferably, the middle positions of two sides in the valve body are respectively provided with an installation guide cylinder, the installation guide cylinders and the flow channel are positioned on the same horizontal line, and the edges of two sides of the valve body are uniformly provided with fixing holes.

Preferably, the sealing rings are respectively arranged in the sealing cavities, the sealing rings are matched with the sealing cavities, and the sealing rings are symmetrical about the vertical center line of the valve body.

Compared with the prior art, the utility model has the beneficial effects that: the high-performance high-pressure flat plate type gate valve not only can be opened and closed conveniently and quickly, but also can be connected and installed conveniently and quickly, and good high-pressure resistance is realized;

(1) when the gate valve is used, the turntable which is movably connected to the top end of the fixed cylinder is rotated to drive the lifting rod which is externally provided with trapezoidal threads and penetrates through the lifting rod to perform linear lifting and transportation through internal threads arranged in the turntable, the lifting rod which performs linear lifting and transportation is limited and stabilized through the guide groove arranged in the fixed cylinder, the lifting rod drives the gate plate fixedly connected with the lifting rod through the valve rod to lift while lifting, and the purpose of opening and closing the gate valve is realized by changing operation torque into operation thrust;

(2) the installation base plates are fixedly connected to the two sides of the valve body respectively, when the gate valve is used, pipelines to be connected with the gate valve are inserted into the installation guide cylinders which are arranged on the two sides of the valve body and are positioned on the same horizontal line with the flow channel respectively, so that the aim of conveniently connecting and positioning the valve body and the pipelines is achieved, the valve body and the pipelines are conveniently connected and fixed through the fixing holes uniformly arranged at the edges of the two sides of the valve body, meanwhile, the tightness of the connection part can be improved through the installation base plates which are fixedly connected to the two sides of the valve body respectively, and the connection between the gate valve and the pipelines is more stable;

(3) be provided with seal chamber respectively through the both sides inside the valve body, can install the sealing washer through the seal chamber who sets up in the inside both sides of valve body when using fixedly, and the sealing washer adopts high performance sealing washer, sealing principle relies on the pretightning force of filling in seal chamber and lip limit to hug closely the seal chamber surface, prevent to reveal the passageway and obtain sealed effect, and when medium pressure effect, thereby seal chamber surface is hugged closely in seal ring lip limit further reinforcing and is revealed the sealed effect of passageway, the highest pressure can reach 20000PSI, satisfy the use of high pressure high requirement occasion.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a front view of a partially enlarged structure of the fixing cylinder of the present invention;

FIG. 3 is a side view of a partial structure of the valve body of the present invention;

FIG. 4 is an enlarged partial cross-sectional view taken at A in FIG. 1 according to the present invention.

In the figure: 1. a valve body; 2. a flow channel; 3. a valve stem; 4. a first fixing screw; 5. a connecting shell; 6. a fixed cylinder; 7. a turntable; 8. a lifting rod; 9. a first fixing nut; 10. a shutter plate; 11. installing a base plate; 12. a second fixing screw; 13. a guide groove; 14. a second fixing nut; 15. a fixing hole; 16. installing a guide cylinder; 17. sealing the cavity; 18. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1-4, a high-performance high-pressure flat gate valve comprises a valve body 1, wherein a connecting shell 5 is arranged at the top end of the valve body 1, mounting base plates 11 are fixedly connected to two sides of the valve body 1 respectively, a fixed cylinder 6 is arranged at the top end of the connecting shell 5, a gate plate 10 is inserted into the middle position inside the valve body 1, a flow passage 2 is arranged inside the valve body 1, a valve rod 3 is fixedly connected to the top end of the gate plate 10, seal cavities 17 are arranged on two sides inside the valve body 1 respectively, a lifting rod 8 is fixedly connected to the top end of the valve rod 3, first fixing screws 4 are uniformly inserted between the top end of the valve body 1 and the bottom end of the connecting shell 5, first fixing nuts 9 are sleeved at two ends outside the first fixing screws 4 respectively, second fixing screws 12 are uniformly penetrated between the top end of the connecting shell 5 and the bottom end of the fixed cylinder 6, and second fixing nuts 14 are sleeved at two ends outside the second fixing screws 12 respectively;

a guide groove 13 is formed in the fixed cylinder 6, the top end of the lifting rod 8 penetrates through the guide groove 13, the top end of the fixed cylinder 6 is movably connected with a rotary table 7, the top end of the lifting rod 8 penetrates through the rotary table 7, trapezoidal threads are arranged on the outer portion of the lifting rod 8, and internal threads are formed in the rotary table 7;

specifically, as shown in fig. 1 and 2, when in use, the rotary disc 7 movably connected to the top end of the fixed cylinder 6 is rotated to drive the lifting rod 8 which is externally provided with trapezoidal threads and penetrates through the lifting rod through internal threads arranged inside the rotary disc, the lifting rod 8 which is in linear lifting motion is limited and stabilized through the guide groove 13 arranged inside the fixed cylinder 6, the lifting rod 8 is driven to lift through the gate plate 10 fixedly connected with the valve rod 3 when lifting, and the gate valve is opened and closed by changing the operation torque into the operation thrust.

Example 2: the middle positions of two sides in the valve body 1 are respectively provided with an installation guide cylinder 16, the installation guide cylinders 16 and the flow channel 2 are positioned in the same horizontal line, and the edges of two sides of the valve body 1 are uniformly provided with fixing holes 15;

specifically, as shown in fig. 1 and fig. 3, when in use, the pipeline to be connected with the gate valve is respectively inserted into the installation guide cylinders 16 which are arranged on two sides of the valve body 1 and are positioned on the same horizontal line with the flow channel 2, so that the purpose of conveniently connecting and positioning the valve body 1 and the pipeline is achieved, the valve body 1 and the pipeline are conveniently connected and fixed through the fixing holes 15 uniformly arranged on the edges of two sides of the valve body 1, meanwhile, the tightness of the connection part is improved through the installation base plates 11 which are respectively and fixedly connected to two sides of the valve body 1, and the connection between the gate valve and the pipeline is more stable.

Example 3: the sealing rings 18 are respectively arranged in the sealing cavities 17, the sealing rings 18 are matched with the sealing cavities 17, and the sealing rings 18 are symmetrical about the vertical center line of the valve body 1;

specifically, as shown in fig. 1 and 4, when in use, the sealing ring 18 can be installed and fixed through the sealing cavity 17 arranged on two sides inside the valve body 1, and the sealing ring 18 adopts the high-performance sealing ring 18, the sealing principle is that the sealing ring 18 is tightly attached to the surface of the sealing cavity 17 by virtue of the pretightening force filled in the sealing cavity 17 and the lip edge thereof, so as to prevent the leakage channel and obtain the sealing effect, and when the medium pressure acts, the lip edge of the sealing ring 18 is further tightly attached to the surface of the sealing cavity 17, so that the sealing effect of blocking the leakage channel is enhanced, the highest pressure can reach 20000PSI, and the use in occasions with high requirements on high pressure is met.

The working principle is as follows: when the utility model is used, firstly, pipelines which need to be connected with the gate valve are respectively inserted into the installation guide cylinders 16 which are arranged at the two sides of the valve body 1 and are positioned at the same horizontal line with the flow channel 2, so that the aim of conveniently connecting and positioning the valve body 1 and the pipelines is achieved, the valve body 1 and the pipelines are conveniently connected and fixed through the fixing holes 15 which are uniformly arranged at the two side edges of the valve body 1, meanwhile, the tightness of the connection part can be improved through the installation backing plates 11 which are respectively and fixedly connected at the two sides of the valve body 1, so that the connection between the gate valve and the pipelines is more stable, the turntable 7 which is rotatably and movably connected at the top end of the fixed cylinder 6 drives the lifting rod 8 which is externally provided with trapezoidal threads and penetrates through the trapezoidal threads to perform linear lifting and transportation through the internal threads arranged in the turntable 7, and the lifting rod 8 which performs the linear lifting and the limiting and stabilizing on the lifting rod through the guide grooves 13 arranged in the fixed cylinder 6, and the lifter 8 drives the flashboard 10 fixedly connected with the lifter through the valve rod 3 to lift while lifting, the gate valve is opened and closed by changing the operation torque into operation thrust, the sealing ring 18 can be installed and fixed through the sealing cavities 17 arranged on two sides in the valve body 1, and the sealing ring 18 adopts a high-performance sealing ring 18, the sealing principle is that the sealing cavity 17 is tightly attached to the surface of the sealing cavity 17 by virtue of the pretightening force filled in the sealing cavity 17 and the lip edge of the pretightening force, the leakage channel is prevented, so that the sealing effect is obtained, and when the medium pressure acts, the lip edge of the sealing ring 18 is further tightly attached to the surface of the sealing cavity 17, so that the sealing effect of the leakage channel is enhanced, the highest pressure can reach 20000PSI, and the use of high-pressure high-requirement occasions is met.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high performance high pressure plate gate valve, includes valve body (1), its characterized in that: the top of valve body (1) is provided with connecting shell (5), the both sides of valve body (1) are fixedly connected with installation backing plate (11) respectively, the top of connecting shell (5) is provided with solid fixed cylinder (6), the inside intermediate position department of valve body (1) is pegged graft and is had flashboard (10), the inside of valve body (1) is provided with runner (2), the top fixedly connected with valve rod (3) of flashboard (10), the inside both sides of valve body (1) are provided with seal chamber (17) respectively, the top fixedly connected with lifter (8) of valve rod (3).

2. A high performance high pressure plate gate valve according to claim 1 wherein: first fixing screw rods (4) are uniformly inserted between the top end of the valve body (1) and the bottom end of the connecting shell (5), first fixing screw caps (9) are respectively sleeved at the two outer ends of the first fixing screw rods (4), second fixing screw rods (12) are uniformly penetrated between the top end of the connecting shell (5) and the bottom end of the fixing barrel (6), and second fixing screw caps (14) are respectively sleeved at the two outer ends of the second fixing screw rods (12).

3. A high performance high pressure plate gate valve according to claim 1 wherein: the inside of fixed section of thick bamboo (6) is provided with guide slot (13), the inside of guide slot (13) is run through on the top of lifter (8).

4. A high performance high pressure plate gate valve according to claim 1 wherein: the top end swing joint of a fixed cylinder (6) has carousel (7), the inside of carousel (7) is run through on the top of lifter (8), the outside of lifter (8) is provided with trapezoidal thread, the inside of carousel (7) is provided with the internal thread.

5. A high performance high pressure plate gate valve according to claim 1 wherein: the middle positions of two sides in the valve body (1) are respectively provided with an installation guide cylinder (16), the installation guide cylinders (16) and the flow channel (2) are located on the same horizontal line, and the edges of two sides of the valve body (1) are uniformly provided with fixing holes (15).

6. A high performance high pressure plate gate valve according to claim 1 wherein: the valve is characterized in that sealing rings (18) are respectively arranged in the sealing cavities (17), the sealing rings (18) are matched with the sealing cavities (17), and the sealing rings (18) are symmetrical about the vertical center line of the valve body (1).