CN219035601U

CN219035601U - Penetrating type two-way sealing knife gate valve

Info

Publication number: CN219035601U
Application number: CN202320401685.5U
Authority: CN
Inventors: 王超; 夏俊华
Original assignee: Shanghai Handing Valve Co ltd
Current assignee: Shanghai Handing Valve Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-05-16
Anticipated expiration: 2033-03-07

Abstract

The utility model discloses a penetrating type bidirectional sealing knife gate valve, which comprises a gate valve body, wherein a sealing leakage-proof structure is fixedly arranged on one side of the gate valve body, medium is prevented from flowing into a gap at a connecting position, medium leakage is caused, the possibility of leakage of the device is reduced, a valve closing structure is arranged in the gate valve body, the valve closing structure comprises a lower bottom plate fixedly arranged at the bottom end of the gate valve body, a movable plate movably connected with the top end of the lower bottom plate, a valve body arranged on one side of the movable plate, a threaded column fixedly connected with the top end of the movable plate, an upper bottom plate movably connected with the threaded column through threads and a handle fixedly arranged at the top end of the threaded column, and the valve body is shielded to different degrees to regulate the flow speed, so that the flexibility of the device is improved, operators can slowly open the valve, the influence of medium flushing on the valve is reduced, and the service life of parts in the device is prolonged.

Description

Penetrating type two-way sealing knife gate valve

Technical Field

The utility model relates to the technical field of knife gate valves, in particular to a penetrating type bidirectional sealing knife gate valve.

Background

The knife gate valve enters China from the eighties, and in the period of less than twenty years, the application range of the knife gate valve is expanded from the common field to wider industries, from coal dressing, gangue and slag discharging of a mine power plant, to urban sewage treatment, and from general industrial pipelines to professional pipeline systems such as food, sanitation and medicine. The penetrating two-way sealing knife gate valve is one of knife gate valves.

However, when the gate valve is closed or opened by the existing device, the speed of the valve plate is too high when the valve plate is opened or closed, so that the medium flow speed is too high, the valve body is eroded and eroded, the service life of the device is shortened, and for this purpose, a penetrating type bidirectional sealing knife gate valve is provided.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the penetrating type bidirectional sealing knife gate valve, which has the technical effect that the body adjusts the flow velocity of a medium.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a two-way sealing knife gate valve of penetration, includes the gate valve body, one side fixed mounting of gate valve body has sealed leak protection structure, the inside of gate valve body is provided with valve closure structure, valve closure structure is including fixed mounting at the lower plate of gate valve body bottom, swing joint movable plate on lower plate top, the valve body of setting in movable plate one side, fixed connection at the screw thread post on movable plate top, through screw thread and screw thread post swing joint's upper plate and fixed mounting at the handle on screw thread post top.

As a preferable technical scheme of the utility model, a groove is arranged in the gate valve body, the size of the groove is matched with that of the movable plate, and the movable plate is movably connected with the gate valve body.

As a preferable technical scheme of the utility model, the top end of the movable plate is provided with a bearing, the movable plate is fixedly connected with the threaded column through the bearing, and the surface of the handle is provided with a rubber sleeve.

As a preferable technical scheme of the utility model, the sealing leakage-proof structure comprises a connecting pipeline fixedly connected to one side of the gate valve body, a leakage-proof ring arranged in the connecting pipeline and a sealing ring fixedly connected to one side of the leakage-proof ring.

As a preferable technical scheme of the utility model, the shape of the leakage-proof ring is designed to gradually increase the internal diameter from left to right, and the sealing ring is made of rubber.

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

1. according to the utility model, the handle is rotated to drive the threaded column to rotate, the moving plate can synchronously rotate along with the threaded column due to the connection relation of the bearing, but the moving plate cannot rotate due to the limitation of the gate valve body on the moving plate, so that the moving plate can vertically move along the extending direction of the threaded column, the flow velocity of a medium is regulated through dislocation between the valve body and the circular groove arranged on the gate valve body, when the gate valve body shields the valve body, the valve body is in a closed state, and the flow velocity is regulated through shielding the valve body to different degrees, so that the flexibility of the device is improved, an operator can slowly open the valve, the influence of medium flushing on the valve is reduced, and the service life of each part inside the device is prolonged;

2. according to the utility model, the flow direction of the medium is guided through the shape design of the leakage-proof ring, so that the medium cannot be largely flushed towards the edge of the pipeline, and the sealing ring can block the medium from flowing into the gap at the joint of the connecting pipeline and the gate valve body, so that the medium is leaked, and the possibility of leakage of the device is reduced.

Drawings

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

FIG. 2 is a front view block diagram of the present utility model;

FIG. 3 is a cross-sectional structural view of the present utility model;

fig. 4 is a longitudinal structural view of the present utility model.

Wherein: 1. a gate valve body; 2. a sealing and leakage-preventing structure; 21. a connecting pipe; 22. a leak-proof ring; 23. a seal ring; 3. a valve closure structure; 31. a lower base plate; 32. a moving plate; 33. a valve body; 34. a threaded column; 35. an upper base plate; 36. a handle.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Examples:

as shown in fig. 1-4, a penetrating type bidirectional sealing knife gate valve comprises a gate valve body 1, wherein a sealing leakage-proof structure 2 is fixedly arranged on one side of the gate valve body 1, a valve closing structure 3 is arranged in the gate valve body 1, the valve closing structure 3 comprises a lower bottom plate 31 fixedly arranged at the bottom end of the gate valve body 1, a movable plate 32 movably connected to the top end of the lower bottom plate 31, a valve body 33 arranged on one side of the movable plate 32, a threaded column 34 fixedly connected to the top end of the movable plate 32, an upper bottom plate 35 movably connected with the threaded column 34 through threads, and a handle 36 fixedly arranged at the top end of the threaded column 34, a groove is formed in the gate valve body 1, the size of the groove is matched with the size of the movable plate 32, the movable plate 32 is movably connected with the gate valve body 1, a bearing is arranged at the top end of the movable plate 32 and is fixedly connected with the threaded column 34 through the bearing, and a rubber sleeve is arranged on the surface of the handle 36;

through rotating handle 36, drive screw post 34 and rotate, because the relation of connection of bearing, originally movable plate 32 can carry out synchronous rotation along with screw post 34, but because gate valve body 1 is to the restriction of movable plate 32, lead to movable plate 32 unable to rotate, so movable plate 32 can carry out vertical movement along the extending direction of screw post 34, and adjust the velocity of flow of medium through the dislocation between valve body 33 and the circular recess that gate valve body 1 set up, then be in the closed condition when gate valve body 1 shields valve body 33, and shelter from valve body 33 through different degrees and carry out the adjustment of velocity of flow, the flexibility of the device has been increased, make the operating personnel have the valve to open slowly, the influence of medium washout to the valve has been reduced, the life of the inside individual part of the device has been prolonged.

In other embodiments, the sealing leakage-proof structure 2 comprises a connecting pipeline 21 fixedly connected to one side of the gate valve body 1, a leakage-proof ring 22 arranged in the connecting pipeline 21, and a sealing ring 23 fixedly connected to one side of the leakage-proof ring 22, wherein the shape of the leakage-proof ring 22 is designed to gradually increase from left to right, the sealing ring 23 is made of rubber, the shape of the leakage-proof ring 22 is designed to guide the flow direction of a medium, so that the medium cannot be largely flushed towards the edge of the pipeline, and the sealing ring 23 can block the medium from flowing into a gap at the connecting part of the connecting pipeline 21 and the gate valve body 1, thereby causing the medium to leak and reducing the possibility of leakage of the device.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a two-way seal knife gate valve of penetration, includes gate valve body (1), its characterized in that: one side fixed mounting of gate valve body (1) has sealed leak protection structure (2), the inside of gate valve body (1) is provided with valve closure structure (3), valve closure structure (3) are including fixed mounting lower plate (31) in gate valve body (1) bottom, swing joint at mobile plate (32) on lower plate (31) top, valve body (33) of setting in mobile plate (32) one side, fixed connection screw thread post (34) on mobile plate (32) top, upper plate (35) through screw thread and screw thread post (34) swing joint to and handle (36) of fixed mounting on screw thread post (34) top.

2. The penetration type bi-directional sealing knife gate valve of claim 1 wherein: the inside of gate valve body (1) is provided with the recess, and the size of recess and movable plate (32) size phase-match, movable plate (32) are swing joint relation with gate valve body (1).

3. The penetration type bi-directional sealing knife gate valve of claim 1 wherein: the top end of the moving plate (32) is provided with a bearing which is fixedly connected with the threaded column (34), and the surface of the handle (36) is provided with a rubber sleeve.

4. The penetration type bi-directional sealing knife gate valve of claim 1 wherein: the sealing leakage-proof structure (2) comprises a connecting pipeline (21) fixedly connected to one side of the gate valve body (1), a leakage-proof ring (22) arranged in the connecting pipeline (21), and a sealing ring (23) fixedly connected to one side of the leakage-proof ring (22).

5. The penetration type bi-directional sealing knife gate valve of claim 4 wherein: the shape of the leakage-proof ring (22) is designed to gradually increase the diameter of the inside from left to right, and the sealing ring (23) is made of rubber.