Anti-blocking pneumatic gate valve
By designing anti-blocking pneumatic gate valves with oval gate plates and double-layer drag points, the problem of increasing opening and closing resistance caused by powder pasting of traditional gate valves is solved, and efficient opening and closing and maintenance costs of gate valves are achieved. The reduction.
Patent Information
- Application Number
- CN202420441303.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-07
AI Technical Summary
After a long time of use, especially when dealing with powdered materials, the opening and closing resistance is easily increased due to the adhesion of the powder on the flange groove, which makes it difficult for the gate valve to open or close.
An anti-blocking pneumatic gate valve was designed. The gate was oval and equipped with four double-layer drag points. When the gate was opened and closed, the drag points were fixed to reduce the resistance caused by the flange groove.
It effectively reduces the resistance when the gate valve is opened and closed after long-term use, reduces the cylinder opening and closing pressure, shortens the opening and closing time, and reduces maintenance costs.
Smart Images
Figure CN222437056U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gate valves, in particular to an anti-clogging pneumatic gate valve. Background Art
[0002] The gate valve is one of the most commonly used shutoff valves, mainly used to connect or cut off the medium in the pipeline, not used to adjust the medium flow. The pressure, temperature and diameter range of use are very large, especially for medium and large diameter pipelines. The gate valve refers to a valve that moves along the vertical direction of the channel axis (gate) when closed. It is mainly used to cut off the medium in the pipeline, that is, fully open or fully closed. Generally, the gate valve cannot be used to adjust the flow. It can be used for low temperature and pressure, high temperature and high pressure, and can be adapted to different occasions according to the different materials of the valve. Cement is a commonly used building material. It is a fine powder made of limestone, clay and other raw materials through calcination and grinding. In the field of cement chemical industry, gate valves are often needed.
[0003] The traditional gate valve fixes the gate position through the groove of the gate valve flange. In cement plants, gate valves are used to cut off the flow of powdered materials. The traditional gate valve is in a closed or open state for a long time, which often makes it difficult for the cylinder to open or close the gate because the powdered material will stick to the groove of the gate valve flange, resulting in increased resistance to opening and closing of the gate. Based on this, an anti-clogging pneumatic gate valve is proposed. Utility Model Content
[0004] The utility model aims to provide an anti-clogging pneumatic gate valve to solve the above-mentioned technical deficiencies.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-clogging pneumatic gate valve, comprising a valve body, a bracket is installed on the top of the valve body, a valve stem connected to the inside of the valve body is passed through the bracket, the channel in the middle of the valve body is elliptical, and an elliptical gate plate that can be moved up and down is provided in the elliptical channel, four double-layer drag points are provided inside the valve body and on both sides of the gate plate, and the gate plate's accommodating cavity is between the drag points on both sides.
[0006] Preferably, the heights of the drag points on both sides are different.
[0007] Preferably, a sealing ring is provided at the bottom of the valve body.
[0008] Preferably, flanges are integrally formed at both end openings of the valve body, a plurality of mounting holes are formed in a circular array on the flange, and flange bolts are screwed into the mounting holes.
[0009] Preferably, the top end of the valve stem protrudes from the bracket, and a cylinder is installed at the top end of the valve stem.
[0010] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0011] The gate of the utility model is elliptical and has four double-layer drag points. The gate position is fixed by the drag points when the gate is opened and closed, which can effectively reduce the resistance caused by the flange groove. After the gate valve is used for a long time, the gate is not prone to gate blockage when opening and closing, the opening and closing time is short, and the cylinder opening and closing pressure is small, which can effectively reduce the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0013] Figure 1 It is a side view of the utility model;
[0014] Figure 2 It is a cross-sectional view of the valve body of the utility model;
[0015] Description of reference numerals:
[0016] 1. Valve body; 2. Gate; 3. Drag point; 4. Flange; 5. Bracket; 6. Valve stem; 7. Cylinder; 8. Flange bolts; 9. Sealing ring. DETAILED DESCRIPTION
[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model, and combined with Figure 2 As shown, the anti-clogging pneumatic gate valve specifically includes a valve body 1, both ends of the valve body 1 are open, and are used for the passage of powdered materials. Flanges 4 are integrally formed at the openings at both ends of the valve body 1, and a plurality of mounting holes are provided on the flange 4 in an annular array. Flange bolts 8 are screwed into the mounting holes. When connected to the pipeline, the flange 4 with the mounting holes can be butt-jointed with the pipeline, and then the flange bolts 8 can be tightened. The connection is convenient and stable, and a bracket 5 is provided at the top end of the valve body 1, wherein a valve stem 6 connected to the inside of the valve body 1 is passed through the bracket 5, and the top end of the valve stem 6 protrudes from the bracket 5, and a cylinder 7 is installed at the top end of the valve stem 6. After the cylinder 7 is started, the valve stem 6 can be moved up or down, thereby realizing the pneumatic opening and closing of the gate 2 to realize the conveying or cutting off of powdered materials.
[0019] Second, see Figure 1 and Figure 2 As shown, the channel in the middle of the valve body 1 is elliptical, and a gate plate 2 that can move up and down is provided at the elliptical channel, and the gate plate 2 is elliptical and adapted to the elliptical channel, and four double-layer drag points 3 are provided inside the valve body 1 and on both sides of the gate plate 2, and the drag points 3 are preferably convex blocks to block the gate plate 2 from both sides, and the accommodating cavity of the gate plate 2 is between the drag points 3 on both sides, and the heights of the drag points 3 on both sides are different, which can block the gate plate 2 from different positions; and a sealing ring 9 is provided at the bottom of the valve body 1.
[0020] Through the above technical solution:
[0021] During specific use, the position of the gate plate 2 will be fixed by the drag point 3 when the gate plate 2 is opened and closed, which can effectively reduce the resistance caused by the flange groove. As a result, after the gate valve is used for a long time, the gate plate 2 is not prone to blockage when opening and closing, the opening and closing time is short, and the opening and closing pressure of the cylinder 7 is small, which can effectively reduce the maintenance cost.
[0022] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. An anti-clogging pneumatic gate valve, comprising a valve body (1), a bracket (5) being mounted on the top of the valve body (1), a valve stem (6) being inserted into the bracket (5) and connected to the inside of the valve body (1), characterized in that: The passage in the middle of the valve body (1) is elliptical, and an elliptical gate plate (2) that can move up and down is provided in the elliptical passage. Four double-layer drag points (3) are provided inside the valve body (1) and on both sides of the gate plate (2). The accommodating cavity of the gate plate (2) is between the drag points (3) on both sides.
2. The anti-clogging pneumatic gate valve according to claim 1, characterized in that: The heights of the drag points (3) on both sides are different.
3. The anti-clogging pneumatic gate valve according to claim 1, characterized in that: A sealing ring (9) is provided at the bottom of the valve body (1).
4. The anti-clogging pneumatic gate valve according to claim 1, characterized in that: Flanges (4) are integrally formed at both end openings of the valve body (1), and a plurality of mounting holes are formed in a circular array on the flange (4), and flange bolts (8) are screwed into the mounting holes.
5. The anti-clogging pneumatic gate valve according to claim 1, characterized in that: The top end of the valve stem (6) protrudes outward from the bracket (5), and a cylinder (7) is installed at the top end of the valve stem (6).