Medium-and-large-sized vacuum plate valve flow guide ring
By introducing a guide ring and a guide cylinder structure into the medium and large vacuum plate valve, the gas and the valve housing are isolated, which solves the problem of gas contacting the driving unit and extends the service life of the driving unit.
Patent Information
- Application Number
- CN202422592467.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-26
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-26
AI Technical Summary
The gas of medium and large vacuum plate valves is easily in contact with the drive unit inside the valve housing, resulting in a decrease in the service life of the drive unit.
A medium-to-large vacuum plate valve flow ring is designed, and a flow pipe is formed through the combination of the flow ring and the flow cylinder to isolate the gas from the valve housing. The driving device is used to drive the flow ring to move in the through hole to prevent gas from entering the valve housing.
The gas is isolated from the drive unit inside the valve housing, and the service life of the drive unit is improved.
Smart Images
Figure CN223294340U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum valves, in particular to a guide ring for a medium or large vacuum plate valve. Background Art
[0002] Medium and large vacuum plate valves (diameter three meters and above) are mainly composed of two parts: the valve housing and the valve core. There is a through hole on the valve housing. When the valve core moves to the through hole, it can complete the sealing and disconnect the pipeline. When the valve core is removed from the through hole, the pipeline is opened. Due to its large size and weight, the movement of the valve core requires drive units such as gears, screws and motors to drive it. The drive unit is generally installed in the valve housing. When the gas passes through, it will contact the drive unit. As the use time increases, the surface of the drive unit will be corroded or contaminated by the gas, thereby affecting the service life of the drive unit.
[0003] Therefore, it is necessary to propose a guide ring for medium and large vacuum plate valves to isolate the gas from the drive unit inside the valve housing to increase the service life of the drive unit. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that the gas of the existing medium and large vacuum plate valve is easily in contact with the drive unit in the valve housing, thereby reducing the service life of the drive unit. A medium and large vacuum plate valve guide ring is now provided.
[0005] The technical solution of the utility model is:
[0006] A guide ring for a medium-to-large vacuum plate valve includes a valve housing, a through hole formed in the valve housing, the through hole extending from one side of the valve housing to the other side, a valve core disposed in the through hole, the valve core being slidably connected to the valve housing, a guide cylinder extending from one side of the valve housing toward the outside of the valve housing along the axis of the through hole, the guide cylinder coinciding with the axis of the through hole on that side, and the through hole on the same side as the guide cylinder being located within the guide cylinder;
[0007] A coaxial guide ring is provided in the guide cylinder, and a driving device is provided on the valve housing. The driving device drives the guide ring to move back and forth between the through hole and the guide cylinder. The guide ring located at the through hole can form a guide pipe with the guide cylinder for gas to pass through, and the guide pipe isolates the gas from the inside of the valve housing.
[0008] Furthermore, the guide ring is slidably connected to the guide cylinder and can slide along the axis of the through hole.
[0009] Furthermore, a guide groove is provided on the guide tube, a guide rail is provided on the guide ring, a guide roller is provided in the guide groove, and the guide rail contacts the guide roller and slides along the guide groove.
[0010] Furthermore, the guide tube is cylindrical.
[0011] Furthermore, the driving device is arranged on the outside of the guide tube, and several driving devices are annular and evenly distributed along the axis of the guide tube.
[0012] Furthermore, there are at least four driving devices.
[0013] Furthermore, the guide ring is in a circular ring shape, and the thickness of the guide ring matches that of the valve housing.
[0014] Furthermore, the driving device is fixedly connected to the valve housing and the guide tube at the same time.
[0015] The utility model provides a guide ring for a medium to large vacuum plate valve. When the valve core is moved out of the through hole, the pipeline is opened. Since the guide ring, the guide tube and the through hole are all coaxial, when the driving device drives the guide ring to move to the through hole, the guide ring can replace the through hole and be connected with the guide tube, thereby forming a guide tube for gas to pass through. Since the through hole is covered by the guide ring at this time, the gas passing through is isolated by the guide ring and will not enter the interior of the valve housing through the through hole, thereby achieving isolation of the gas from the interior of the valve housing. Compared with the traditional technology, the technical solution achieves isolation of the gas from the drive unit inside the valve housing, thereby improving the service life of the drive unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural reference diagram of the utility model when the plate valve is open;
[0017] Figure 2 This is a structural reference diagram of the utility model when the plate valve is closed;
[0018] Figure 3 This is a cross-sectional view of the guide tube of the utility model;
[0019] Figure 4 For this utility model Figure 2 A partial enlarged view of point A in the middle.
[0020] Figure numerals: 1, valve housing; 2, through hole; 3, valve core; 4, guide tube; 5, guide ring; 6, driving device; 7, guide tube; 8, guide groove; 9, guide roller. DETAILED DESCRIPTION
[0021] In order to make the technical means, technical features, purpose of the utility model and technical effects achieved by the utility model easier to understand, the utility model is further explained below with reference to specific illustrations.
[0022] Example 1:
[0023] like Figure 2 and Figure 3 As shown, this embodiment provides a medium to large vacuum plate valve guide ring. Figure 3When the plate valve is open, the vertical cross-section of the guide cylinder includes a valve housing 1, a through hole 2 is opened in the valve housing 1, and the through hole 2 runs from one side of the valve housing 1 to the other side. A valve core 3 is provided in the through hole 2, and the valve core 3 is slidably connected to the valve housing 1. Preferably, the guide ring 5 is slidably connected to the guide cylinder 4 and can slide along the axis of the through hole 2. Figure 4 As shown, a guide groove 8 is provided on the guide cylinder 4, and a guide rail is fixedly installed on the guide ring 5 with screws. A guide roller 9 is provided in the guide groove 8. The guide rail contacts the guide roller 9 and slides along the guide groove 8. When the guide ring 5 moves relative to the guide cylinder 4, the guide roller 9 can roll, thereby reducing the friction between the guide rail and the guide roller 9, changing the sliding friction to rolling friction, so that the guide rail can slide along the guide groove 8, thereby realizing the sliding of the guide ring 5 relative to the guide cylinder 4. Preferably, two rows of guide rollers 9 are provided in the guide groove 8, and each row has at least 10 guide rollers 9 evenly distributed. The guide rollers 9 are rotatably connected to the guide groove 8 by a pin shaft, and one side of the valve housing 1 extends along the axis of the through hole 2 to the outside of the valve housing 1. The guide tube 4 is extended to form a guide tube 4, which coincides with the axis of the through hole 2 on this side. The through hole 2 on the same side as the guide tube 4 is located in the guide tube 4. A guide ring 5 coaxial with the guide tube 4 is provided in the guide tube 4. A driving device 6 is provided on the valve housing 1. The driving device 6 drives the guide ring 5 to move back and forth between the through hole 2 and the guide tube 4. The guide ring 5 located at the through hole 2 can form a guide tube 7 for gas to pass through with the guide tube 4. The guide tube 7 isolates the gas from the inside of the valve housing 1. Preferably, the driving device 6 is a cylinder, a hydraulic cylinder or an electric cylinder. Such devices are more common on the market. Those skilled in the art can decide on their own according to actual conditions regarding their installation method and model, which will not be described in detail herein.
[0024] Preferably, the guide tube 4 is cylindrical. Preferably, the drive device 6 is arranged on the outside of the guide tube 4. Several drive devices 6 are annular and evenly distributed along the axis of the guide tube 4. Preferably, there are at least four drive devices 6. The drive device 6 can be a cylinder, a hydraulic cylinder, or an electric cylinder, preferably an electric cylinder. Preferably, the drive device 6 is screwed to the valve housing 1 and the guide tube 4 at the same time.
[0025] Preferably, the guide ring 5 is annular and matches the thickness of the valve housing 1. When the guide ring 5 moves into the valve housing 1 and is combined with the guide tube 4 to form the guide tube 7, the guide ring 5 can perfectly adapt to the thickness of the valve housing 1, thereby ensuring that the guide ring 5 isolates the gas from the inside of the valve housing 1.
[0026] When working, Figure 1 and Figure 2As shown, when the valve core 3 is moved out of the through hole 2, the pipeline is opened. Since the guide ring 5, the guide cylinder 4 and the through hole 2 are all coaxial, when the driving device 6 drives the guide ring 5 to move to the through hole 2, the guide ring 5 can replace the through hole 2 and connect with the guide cylinder 4, thereby forming a guide pipe 7 for gas to pass through. Since the through hole 2 is covered by the guide ring 5 at this time, the gas passing through is isolated by the guide ring 5 and will not enter the inside of the valve housing 1 through the through hole 2, thereby achieving isolation between the gas and the inside of the valve housing 1; when it is necessary to close the plate valve, first First, the driving device 6 drives the guide ring 5 to move out of the through hole 2, or out of the valve housing 1. When the guide ring 5 moves to the guide tube 4, the guide ring 5 overlaps with the guide tube 4, and then the valve core 3 moves to the through hole 2 under the drive of the driving unit. Without the guide ring 5, the valve core 3 will not be blocked when moving to the through hole 2, thereby realizing the sealing of the through hole 2 by the valve core 3 and completing the closing of the plate valve. This technical solution realizes the isolation of the gas from the driving unit inside the valve housing 1, thereby improving the service life of the driving unit.
[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. In other words, any equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the technical scope of the present invention.
Claims
1. A guide ring for a medium-to-large vacuum plate valve, comprising a valve housing (1), the valve housing (1) being provided with a through hole (2), the through hole (2) being passed from one side of the valve housing (1) to the other side, a valve core (3) being provided in the through hole (2), the valve core (3) being slidably connected to the valve housing (1), and characterized in that: One side of the valve housing (1) extends toward the outside of the valve housing (1) along the axis of the through hole (2) to form a guide tube (4), the guide tube (4) coincides with the axis of the through hole (2) on that side, and the through hole (2) on the same side as the guide tube (4) is located within the guide tube (4); A guide ring (5) coaxial with the guide tube (4) is provided in the guide tube (4), and a driving device (6) is provided on the valve housing (1). The driving device (6) drives the guide ring (5) to move back and forth between the through hole (2) and the guide tube (4). The guide ring (5) located at the through hole (2) can form a guide tube (7) for gas to pass through with the guide tube (4), and the guide tube (7) isolates the gas from the interior of the valve housing (1).
2. The guide ring for medium to large vacuum plate valves according to claim 1, characterized in that: The guide ring (5) is slidably connected to the guide cylinder (4) and can slide along the axis of the through hole (2).
3. The guide ring for medium to large vacuum plate valves according to claim 2, characterized in that: A guide groove (8) is provided on the guide tube (4), a guide rail is provided on the guide ring (5), a guide roller (9) is provided in the guide groove (8), and the guide rail contacts the guide roller (9) and slides along the guide groove (8).
4. The guide ring for medium to large vacuum plate valves according to claim 1, characterized in that: The guide tube (4) is cylindrical.
5. The guide ring for medium to large vacuum plate valves according to claim 1, characterized in that: The driving device (6) is arranged outside the guide tube (4), and a plurality of driving devices (6) are annular and evenly distributed along the axis of the guide tube (4).
6. The guide ring for medium to large vacuum plate valves according to claim 5, characterized in that: There are at least four drive devices (6).
7. The guide ring for medium to large vacuum plate valves according to claim 1, characterized in that: The guide ring (5) is in the shape of a circular ring, and the thickness of the guide ring (5) matches that of the valve housing (1).
8. The guide ring for medium to large vacuum plate valves according to claim 1, characterized in that: The driving device (6) is fixedly connected to the valve housing (1) and the guide tube (4).