CN221075251U - Gate valve with high air tightness - Google Patents

Abstract

The utility model relates to the technical field of valves and discloses a gate valve with high air tightness, which comprises a first connecting pipe, wherein a fixed ring is fixedly connected inside the first connecting pipe, two groups of abutting grooves are formed in the fixed ring, and abutting blocks are abutted against the inner walls of the two groups of abutting grooves. This kind of gate valve of high gas tightness, when closing the gate valve, at first, twist the rotation handle, drive the threaded rod through the rotation handle and rotate, thereby make threaded rod surface threaded connection's movable plate carry out perpendicular downwardly moving, thereby drive the second connecting block, first connecting block and fixed block carry out perpendicular downwardly moving, the problem that can not cut off completely after effectively having avoided the gate valve long-time use of this structure, can reach the effect that prevents the pipeline leakage, the time that the user closed the valve is required has been reduced, the result of use of this gate valve has been improved, also can improve the life of the device at in-process of in-service use, cost of maintenance has also been reduced.

Description

Gate valve with high air tightness

Technical Field

The utility model relates to the technical field of valves, in particular to a gate valve with high air tightness.

Background

The gate valve is also called a gate valve, a flat plate is arranged in the valve body and is perpendicular to the flowing direction of a medium, when the flat plate rises, the valve is opened, the medium passes through, when the flat plate falls down, the valve is closed, the medium is cut off the opening and closing operation of the valve, the surrounding environment is not blocked, and the operation is not performed or the function is not disabled due to the interference of external factors.

According to the anti-corrosion gate valve with the patent number of CN216242393U, the scheme comprises a valve body, wherein the two ends of the interior of the valve body are respectively provided with a water inlet and a water outlet; the mounting mechanism is fixedly connected with the valve body; the adjusting mechanism is positioned in the valve body and the valve cover and is in sliding connection with the inner wall of the valve body; through the device, can improve the anticorrosive of gate valve to a certain extent, also further improve the holistic gas tightness of device, and the material that the dull and stereotyped flashboard adopted is standard EPDM rubber, has alleviateed the holistic weight of device to a certain extent, through being provided with the dashpot in the position of the inside dull and stereotyped flashboard that lies in of valve body under, can avoid the effort that produces between dull and stereotyped flashboard and the valve body inner wall, lead to valve body inner wall and dull and stereotyped flashboard to receive the damage, both reduced the holistic cost of maintenance of device, also improved the life of device.

However, this kind of anticorrosive gate valve when using the gate valve, can not realize effectually fully closing the gate valve, can cause the problem that the medium leaked in the pipeline, can not realize cutting off the medium in the pipeline, simultaneously, also can't seal the pipeline junction, thereby because pipeline and gate valve junction leak because of the gas tightness is low easily takes place to influence external environment, also can reduce the transmission efficiency of pipeline, has increaseed cost of maintenance and also can make and influence external environment.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a gate valve with high air tightness, which has the advantages of completely cutting off media and high air tightness and solves the problems in the background art.

The utility model provides the following technical scheme: the utility model provides a gate valve of high gas tightness, includes first connecting pipe, the inside fixedly connected with fixed ring of first connecting pipe, two sets of butt grooves have been seted up to the inside of fixed ring, two sets of the equal butt in inner wall in butt groove has the butt piece, the last fixed surface of butt piece is connected with the valve plate, the last fixed surface of valve plate is connected with the connecting rod.

Preferably, the lower surface fixed mounting of first connecting pipe has first flange, the fixed surface of first connecting pipe is connected with the second connecting pipe, the surface of second connecting pipe has cup jointed sealed the pad, sealed pad closely laminates with first connecting pipe, the one end fixed mounting of second connecting pipe has the second flange.

Preferably, the upper surface fixedly connected with valve body of first connecting pipe, the inside rotation of valve body is connected with the threaded rod, the upper end fixedly connected with of threaded rod rotates the handle, the surface threaded connection of threaded rod has the movable plate.

Preferably, two groups of sliding grooves are formed in the valve body, sliding blocks are connected to the inner walls of the two groups of sliding grooves in a sliding mode, and the sliding blocks are fixedly connected with the moving plate.

Preferably, one side of the movable plate is fixedly connected with two groups of second connecting blocks, the lower surfaces of the two groups of second connecting blocks are fixedly connected with first connecting blocks, the lower surfaces of the first connecting blocks are fixedly connected with fixing blocks, and the fixing blocks are fixedly connected with connecting rods.

Preferably, the lower surface of threaded rod fixedly connected with limiting plate, threaded rod and connecting rod are located different perpendicular.

Compared with the prior art, the utility model has the following beneficial effects:

1. This kind of gate valve of high gas tightness, when closing the gate valve, at first, twist the rotation handle, drive the threaded rod through the rotation handle and rotate, thereby make threaded rod surface threaded connection's movable plate carry out perpendicular downwardly moving, thereby drive the second connecting block, first connecting block and fixed block carry out perpendicular downwardly moving, thereby make the lower fixed surface of connecting rod lower extreme fixedly connected's valve plate's butt piece butt to the inner wall of butt groove, make the valve close, the inside medium of first connecting pipe stops transporting the inside of second connecting pipe, movable plate both ends fixedly connected's slider carries out spacingly to the movable plate, make movable plate more stable when moving perpendicularly, the problem that can not totally cut off after the long-time use of this structure, can reach the effect that prevents the pipeline leakage, simultaneously, reduced the user and closed the valve required time, the result of use of this gate valve has been improved, also can improve the life of this device at in-service use's in-process of in-service use, cost has also been reduced.

2. This kind of gate valve of high gas tightness, when installing the gate valve, at first, with first flange and another group flange coupling of fixed surface connection under the first connecting pipe for first connecting pipe and transportation pipeline zonulae occludens, make second connecting pipe and export pipeline zonulae occludens through the second flange, second connecting pipe fixed surface's sealed pad closely laminates with first connecting pipe and second connecting pipe, avoid the junction of first connecting pipe and second connecting pipe to leak, the setting of this structure has effectively avoided the problem that the gate valve gas tightness is low, can reach the effect of pipeline high gas tightness, simultaneously, prevented the leakage of pipeline, improved the transmission efficiency of pipeline, also can improve the security of device at in-process of in-service use, also do benefit to the extensive popularization of the device.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the device of the present utility model;

FIG. 2 is a schematic diagram of the front internal structure of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of the partial structure of FIG. 2 according to the present utility model;

FIG. 4 is a schematic view of the right-hand portion of FIG. 1 according to the present utility model;

fig. 5 is a schematic view of a top view of the portion of fig. 1 according to the present utility model.

In the figure: 1. a first connection pipe; 2. a first flange; 3. a second flange; 4. a second connection pipe; 5. a sealing gasket; 6. a valve body; 7. rotating the handle; 8. a connecting rod; 9. fixing the circular ring; 10. a valve plate; 11. an abutment block; 12. an abutment groove; 13. a threaded rod; 14. a slide block; 15. a first connection block; 16. a limiting plate; 17. a moving plate; 18. a second connection block; 19. a chute; 20. and a fixed block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a gate valve with high air tightness comprises a first connecting pipe 1, wherein a fixed circular ring 9 is fixedly connected to the inside of the first connecting pipe 1, two groups of abutting grooves 12 are formed in the fixed circular ring 9, abutting blocks 11 are all abutted to the inner walls of the two groups of abutting grooves 12, a valve plate 10 is fixedly connected to the upper surface of each abutting block 11, a connecting rod 8 is fixedly connected to the upper surface of each valve plate 10, the problem that the gate valve cannot completely shut off after being used for a long time is effectively avoided, the effect of preventing pipeline leakage can be achieved, and the using effect of the valve is improved.

Wherein; the lower surface fixed mounting of first connecting pipe 1 has first flange 2, and the fixed surface of first connecting pipe 1 is connected with second connecting pipe 4, and sealed pad 5 has been cup jointed on the surface of second connecting pipe 4, and sealed pad 5 closely laminates with first connecting pipe 1, and the one end fixed mounting of second connecting pipe 4 has second flange 3, has prevented the leakage of pipeline, has improved the transmission efficiency of pipeline, has effectively avoided the problem that the gate valve gas tightness is low, can reach the effect of the high gas tightness of pipeline, also can improve the security of the device at in-process of in-service use.

Wherein; the upper surface fixedly connected with valve body 6 of first connecting pipe 1, the inside rotation of valve body 6 is connected with threaded rod 13, and the upper end of threaded rod 13 has rotation handle 7, and the surface threaded connection of threaded rod 13 has movable plate 17, has reduced the time that the user closed the valve, has improved the result of use of this gate valve, also can improve the life of device at the in-service use in-process, has also reduced cost of maintenance.

Wherein; two groups of sliding grooves 19 are formed in the valve body 6, sliding blocks 14 are slidably connected to the inner walls of the two groups of sliding grooves 19, the sliding blocks 14 are fixedly connected with the moving plate 17, and the sliding blocks 14 fixedly connected with the two ends of the moving plate 17 limit the moving plate 17, so that the moving plate 17 is more stable when moving vertically, and the service life of the device is prolonged.

Wherein; two sets of second connecting blocks 18 of one side fixedly connected with of movable plate 17, the equal fixedly connected with first connecting block 15 of lower surface of two sets of second connecting blocks 18, the lower surface fixedly connected with fixed block 20 of first connecting block 15, fixed block 20 and connecting rod 8 fixed connection can reach the effect of connecting rod 8 and movable plate 17 linkage to make movable plate 17 drive connecting rod 8 and carry out vertical movement, improved the practicality of the device.

Wherein; the lower surface fixedly connected with limiting plate 16 of threaded rod 13, threaded rod 13 and connecting rod 8 are located different perpendicular, can reach the effect that carries out spacing to movable plate 17, avoid movable plate 17 to remove out the problem of threaded rod 13, improved the stability when the device is used.

When the gate valve is installed according to the working principle, firstly, the first flange 2 fixedly connected with the lower surface of the first connecting pipe 1 is connected with the other group of flanges, so that the first connecting pipe 1 is tightly connected with the transportation pipeline, the second connecting pipe 4 is tightly connected with the output pipeline through the second flange 3, the sealing gasket 5 fixedly connected with the surface of the second connecting pipe 4 is tightly attached to the first connecting pipe 1 and the second connecting pipe 4, and the leakage of the joint of the first connecting pipe 1 and the second connecting pipe 4 is avoided.

When the gate valve is closed, first, the rotating handle 7 is twisted, the threaded rod 13 is driven to rotate through the rotating handle 7, so that the moving plate 17 in threaded connection with the surface of the threaded rod 13 vertically moves downwards, the second connecting block 18, the first connecting block 15 and the fixed block 20 are driven to vertically move downwards, the abutting block 11 fixedly connected with the lower surface of the valve plate 10 fixedly connected with the lower end of the connecting rod 8 abuts against the inner wall of the abutting groove 12, the valve is closed, media inside the first connecting pipe 1 stops being transported to the inside of the second connecting pipe 4, and the sliding blocks 14 fixedly connected with the two ends of the moving plate 17 limit the moving plate 17, so that the moving plate 17 is more stable when moving vertically.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Gate valve with high air tightness, comprising a first connecting tube (1), characterized in that: the inside fixedly connected with fixed ring (9) of first connecting pipe (1), two sets of butt groove (12) have been seted up to the inside of fixed ring (9), two sets of the inner wall of butt groove (12) all butt has butt piece (11), the upper surface fixedly connected with valve plate (10) of butt piece (11), the upper surface fixedly connected with connecting rod (8) of valve plate (10).

2. A gate valve of high gas tightness according to claim 1, characterized in that: the lower surface fixed mounting of first connecting pipe (1) has first flange (2), the fixed surface of first connecting pipe (1) is connected with second connecting pipe (4), sealed pad (5) have been cup jointed on the surface of second connecting pipe (4), sealed pad (5) are closely laminated with first connecting pipe (1), the one end fixed mounting of second connecting pipe (4) has second flange (3).

3. A gate valve of high gas tightness according to claim 1, characterized in that: the novel valve is characterized in that the valve body (6) is fixedly connected to the upper surface of the first connecting pipe (1), a threaded rod (13) is rotatably connected to the inner portion of the valve body (6), a rotary handle (7) is fixedly arranged at the upper end of the threaded rod (13), and a movable plate (17) is in threaded connection with the surface of the threaded rod (13).

4. A gate valve of high gas tightness according to claim 3, characterized in that: two groups of sliding grooves (19) are formed in the valve body (6), sliding blocks (14) are slidably connected to the inner walls of the two groups of sliding grooves (19), and the sliding blocks (14) are fixedly connected with the moving plate (17).

5. The gate valve of claim 4, wherein: two groups of second connecting blocks (18) are fixedly connected to one side of the moving plate (17), the lower surfaces of the two groups of second connecting blocks (18) are fixedly connected with first connecting blocks (15), the lower surfaces of the first connecting blocks (15) are fixedly connected with fixing blocks (20), and the fixing blocks (20) are fixedly connected with connecting rods (8).

6. A gate valve of high gas tightness according to claim 3, characterized in that: the lower surface of threaded rod (13) is fixedly connected with limiting plate (16), threaded rod (13) and connecting rod (8) are located different perpendicular.