Double-opening gate valve

Abstract

The utility model discloses a double-opening gate valve which comprises a valve body, two symmetrically-arranged door plate assemblies, two driving pieces and a linkage mechanism. An opening is formed in one side of the valve body, a mounting groove communicated with the opening is formed in the other side of the valve body, the axial direction of the opening is the first direction, the two door plate assemblies are slidably arranged in the mounting groove in the second direction, the second direction is perpendicular to the first direction, and the two driving parts are arranged on the two opposite sides of the two door plate assemblies correspondingly. The linkage mechanisms are arranged between the driving pieces and the corresponding door plate assemblies; the linkage mechanism converts linear motion of the output end of the driving part in the second direction into compound motion of the door plate assembly in the second direction and the first direction. The utility model has the advantages of short stroke, high efficiency, reliable sealing and strong driving force.

Description

Technical Field

[0001] This utility model relates to the field of vacuum equipment, specifically a double-opening slide gate valve used to isolate the sample loading chamber from the ion transport zone and assist in the vacuuming process. Background Technology

[0002] In vacuum equipment, such as mass spectrometers and electron microscopes, slide gate valves play a crucial role in isolating the sample chamber from the ion transport zone. They ensure that different areas can be evacuated independently, effectively preventing gas leakage and maintaining the system's vacuum level. However, traditional slide gate valves mostly employ a single-door linear actuator structure, which has significant shortcomings. Firstly, the single-door linear motion results in a long valve opening or closing stroke, leading to time-consuming valve action and significantly impacting equipment operating efficiency, making it difficult to meet the demands of rapid vacuum state switching. Secondly, the single-door structure has limited sealing performance; over long-term use, wear and deformation can easily cause sealing problems, leading to gas leakage in the vacuum system. This not only affects normal equipment operation but also increases the energy consumption and time costs of vacuuming. Furthermore, traditional slide gate valves typically use a single power source, resulting in relatively weak driving force, making it difficult to guarantee a stable and reliable sealing effect in high-vacuum applications. Therefore, developing a slide gate valve with a short stroke, high efficiency, reliable sealing, and strong driving force is key to improving the performance of vacuum equipment. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a double-opening slide gate valve, which has a short stroke, high efficiency, reliable sealing, and strong driving force.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a double-opening slide gate valve, including a valve body, two symmetrically arranged door panel assemblies, two driving members, and a linkage mechanism; one side of the valve body has an opening, and the other side has a mounting groove communicating with the opening. The axial direction of the opening is a first direction. The two door panel assemblies are slidably arranged in the mounting groove along a second direction, which is perpendicular to the first direction. The two driving members are respectively arranged on opposite sides of the two door panel assemblies. The linkage mechanism is arranged between each driving member and the corresponding door panel assembly. The linkage mechanism converts the linear motion of the output end of the driving member in the second direction into a compound motion of the door panel assembly in the second direction and the first direction. When the output ends of the two driving members move towards each other along the second direction, the linkage mechanism drives the two door panel assemblies to move towards each other along the second direction to close the opening, and moves along the first direction towards one side of the valve body to press against the inner wall of the valve body. When the output ends of the two driving members move away from each other along the second direction, the linkage mechanism drives the two door panel assemblies to move away from each other along the second direction to open the opening, and moves along the first direction towards the other side of the valve body to release the pressure on the inner wall of the valve body.

[0005] Furthermore, the linkage mechanism includes a horizontal plate, a push rod, and a vertical rod. The horizontal plate is connected to the door panel assembly and has a guide groove. The guide groove extends in an inclined direction. One end of the push rod is connected to the output end of the drive component, and the other end is rotatably connected to the vertical rod via a shaft coupling. The vertical rod is slidably fitted in the guide groove.

[0006] Furthermore, the projection of the tilting direction onto the first direction is consistent with the second direction; one end of the guide groove near the opposite side of the two door panel assemblies is away from the opening, and the other end is close to the opening.

[0007] Furthermore, the linkage mechanism also includes gaskets on both sides of the horizontal plate, and the gaskets are threadedly connected to the vertical rod.

[0008] Furthermore, there are two horizontal plates, which are arranged opposite each other on the door panel assembly along a third direction. The two ends of the vertical rod are slidably connected to the guide grooves of the two horizontal plates, and the shaft is connected to the middle of the vertical rod. The third direction is perpendicular to the first direction and the second direction, respectively.

[0009] Furthermore, the door panel assembly includes a first door panel and a second door panel disposed opposite to each other along the first direction, and the two ends of the horizontal plate are fixedly connected to the first door panel and the second door panel respectively.

[0010] Furthermore, the two door panel assemblies are respectively provided with corresponding grooves and protrusions on opposite sides. When the two door panel assemblies close the opening, the protrusions and grooves are engaged.

[0011] Furthermore, the driving component is a cylinder.

[0012] Furthermore, the mounting groove is provided with a guide rail extending along the second direction and slidingly engaging with the two door panel assemblies. Compared with the prior art, this utility model has the following beneficial effects:

[0013] 1. The structure of this utility model significantly shortens the opening and closing stroke of the door panel assembly, greatly improving operational efficiency, rapidly responding to the equipment's needs for vacuum state switching, and significantly improving the overall operating efficiency of the equipment. Furthermore, a linkage mechanism is incorporated, converting the linear motion of the drive unit's output end in the second direction into a combined motion of the door panel assembly in both the second and first directions. When the two door panel assemblies move towards each other in the second direction to close the opening, they can move along the first direction towards one side of the valve body, pressing against the inner wall of the valve body, thus improving the sealing effect and greatly enhancing the stability and reliability of the vacuum system, creating a stable vacuum environment for the equipment. Simultaneously, the use of dual drive units, compared to traditional single power sources, results in a shorter stroke, higher efficiency, and significantly increased driving force, ensuring that the door panel assembly obtains sufficient sealing pressure under various operating conditions.

[0014] 2. The door panel assembly includes a first door panel and a second door panel arranged opposite to each other along the first direction, forming multiple sealing defenses and further improving the sealing effect.

[0015] 3. The first and second door panels are fitted with grooves and protrusions, which further improves the sealing effect, enhances the structural strength of the door panels, prevents deformation during movement, and ensures precise fit when closed.

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the double-opening slide gate valve of the present invention is not limited to the embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the valve body of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the present invention (at the linkage mechanism);

[0020] Figure 4 This is a three-dimensional structural diagram of the two door panel components of this utility model;

[0021] Figure 5 This is a top view of the two door panel components of this utility model;

[0022] In the diagram: 1. Valve body; 11. Opening; 12. Mounting groove; 13. Guide rail; 14. Through hole; 2. Door panel assembly; 21. First door panel; 22. Second door panel; 23. Protrusion; 24. Groove; 3. Linkage mechanism; 31. Horizontal plate; 311. Guide groove; 32. Push rod; 33. Vertical rod; 34. Shaft coupling; 35. Gasket. Detailed Implementation

[0023] In this utility model, the terms "first," "second," etc., are used only to distinguish similar objects, not to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "inner" and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, and is only for the convenience of describing this utility model, not to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation on the scope of protection of this utility model. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please see Figures 1-5 As shown, this utility model discloses a double-opening slide gate valve, comprising a valve body 1, two symmetrically arranged gate panel assemblies 2, two driving components (not shown in the figure), and a linkage mechanism 3; one side of the valve body 1 has an opening 11, and the other side has a mounting groove 12 communicating with the opening 11, wherein the axial direction of the opening 11 is a first direction (i.e., Figure 1 The two door panel assemblies 2 are along the second direction (i.e., the y-axis direction). Figure 1 The two drive components are slidably disposed within the mounting groove 12 in the x-axis direction. The second direction is perpendicular to the first direction. The two drive components are respectively disposed on opposite sides of the two door panel assemblies 2. The linkage mechanism 3 is disposed between each drive component and the corresponding door panel assembly 2. The linkage mechanism 3 converts the linear motion of the output end of the drive component in the second direction into a composite motion of the door panel assembly 2 in the second and first directions. Specifically, when the two door panel assemblies 2 are not closing the opening 11, the side of the door panel assembly 2 facing the opening 11 is in clearance fit with the inner wall of the valve body 1. When the output ends of the two drive components move towards each other in the second direction, the linkage mechanism 3 drives the two door panel assemblies 2 to move towards each other in the second direction to close the opening 11, and moves towards one side of the valve body 1 in the first direction to press against the inner wall of the valve body 1. When the output ends of the two drive components move away from each other in the second direction, the linkage mechanism 3 drives the two door panel assemblies 2 to move away from each other in the second direction to open the opening 11, and moves towards the other side of the valve body 1 in the first direction to release the pressure on the inner wall of the valve body 1.

[0026] The linkage mechanism 3 includes a horizontal plate 31, a push rod 32, and a vertical rod 33. The horizontal plate 31 is connected to the door panel assembly 2 and has a guide groove 311. The guide groove 311 extends in an inclined direction. One end of the push rod 32 is connected to the output end of the drive component, and the other end is rotatably connected to the vertical rod 33 via a shaft coupling 34. That is, one end of the shaft coupling 34 is rotatably connected to one end of the push rod 32, and the other end is rotatably connected to the vertical rod 33. The vertical rod 33 slides in the guide groove 311. The projection of the inclined direction in the first direction is consistent with the second direction. One end of the guide groove 311, near the opposite side of the two door panel assemblies 2, is away from the opening 11, and the other end is close to the opening 11. The linkage mechanism 3 also includes gaskets 35 on both sides of the horizontal plate 31. The gaskets 35 are threadedly connected to the vertical rod 33. The gaskets 35 on both sides prevent the vertical rod 33 from falling off and increase the friction of the vertical rod 33 sliding in the guide groove 311.

[0027] The number of the horizontal plates 31 is two, and the two horizontal plates 31 are along a third direction (i.e. Figure 1 The vertical rod 33 is arranged on the door panel assembly 2 in a direction opposite to the z-axis. Both ends of the vertical rod 33 are slidably connected to the guide grooves 311 of the two horizontal plates 31, and the shaft coupling 34 is connected to the middle of the vertical rod 33. The third direction is perpendicular to both the first and second directions.

[0028] The door panel assembly 2 includes a first door panel 21 and a second door panel 22 arranged opposite to each other along the first direction, forming multiple sealing lines to further improve the sealing effect. The two ends of the horizontal plate 31 are fixedly connected to the first door panel 21 and the second door panel 22, respectively. The door panel assembly 2 is made of stainless steel. The valve body 1 is also made of stainless steel.

[0029] The two door panel assemblies 2 are respectively provided with corresponding grooves 24 and protrusions 23 on opposite sides. When the two door panel assemblies 2 close the opening 11, the protrusions 23 and grooves 24 engage, thereby further improving the sealing effect, enhancing the structural strength of the door panel, preventing deformation during movement, and ensuring precise fit when closed. Specifically, one door panel assembly 2 is provided with a groove 24, and the other door panel assembly 2 is provided with a protrusion 23, but this is not limited to this. In other embodiments, each door panel assembly may be provided with grooves and protrusions, and the shapes of the grooves and protrusions can be set according to requirements.

[0030] The driving component is a cylinder, which is located on the outside of the valve body 1. The valve body 1 is provided with a through hole 14 that allows the push rod 32 to extend out and connect with the output end of the cylinder. The push rod 32 is sealed to the through hole 14.

[0031] The mounting groove 12 is provided with guide rails 13 extending along the second direction and slidingly engaging with the two door panel assemblies 2. Specifically, the size of the first door panel 21 is smaller than that of the second door panel 22, and the first door panel 21 is closer to the opening 11, while the second door panel 22 is farther away from the opening 11. Guide rails 13 are provided at both ends of the mounting groove 12 along the third direction. During installation, the first door panel 21 is located between the two guide rails 13, and the second door panel 22 is located on the side of the guide rails 13 away from the opening 11. When the two door panel assemblies 2 are not closed at the opening 11, there is a certain gap between the second door panel 22 and the guide rails 13, which allows the guide rails 13 to guide the door panel assembly 2 in the second direction, while preventing the guide rails 13 from affecting the movement of the door panel assembly 2 in the first direction.

[0032] This utility model discloses a double-leaf slide gate valve. First, installation and debugging are required. The linkage mechanism 3 is installed and tested to ensure accurate triggering when the two door panel assemblies 2 are tightly closed. Next, the two door panel assemblies 2 are assembled and installed on the guide rail 13, ensuring smooth sliding. The groove 24 and protrusion 23 are adjusted for structural compatibility. Then, the valve body 1 is aligned with the flange interfaces of the sample chamber and ion transfer zone. After installing the sealing gasket, it is secured with bolts to ensure a firm connection and good sealing.

[0033] During operation, when a control signal to open the door assembly 2 is received, the control system simultaneously sends commands to the cylinders on both sides. The output ends of the cylinders on both sides move in opposite directions synchronously. Through the push rod 32 of the linkage mechanism 3, the door assembly 2 moves in opposite directions along the guide rail 13, causing the two door assemblies 2 to separate and the opening 11 to open, thus connecting the sample chamber and the ion transfer area. During this process, the vertical rod 33 of the linkage mechanism 3 slides along the guide groove 311 to the other end of the guide groove 311 (i.e., the end closer to the opening 11), without affecting the opening of the door assembly 2.

[0034] When a control signal to close the door panel assembly 2 is received, the control system controls the cylinders on both sides to move synchronously towards each other. The push rod 32 of the linkage mechanism 3 drives the door panel assembly 2 to slide towards each other along the guide rail 13. After the two door panel assemblies 2 come into contact with each other, the system continues to push the door panel assembly 2 to move. The vertical rod 33 of the linkage mechanism 3 slides along the guide groove 311 to one end of the guide groove 311 (i.e., the end away from the opening 11), so that the two door panel assemblies 2 move towards one side of the valve body 1 in the first direction and press against the inner wall of the valve body 1, achieving efficient sealing and separating the sample chamber from the ion transmission area, effectively preventing gas leakage.

[0035] This utility model discloses a double-opening slide gate valve, which significantly shortens the opening and closing stroke of the door assembly 2, greatly improving operational efficiency, quickly responding to the equipment's demand for vacuum state switching, and significantly improving the overall operating efficiency of the equipment. Furthermore, a linkage mechanism 3 is incorporated, which converts the linear motion of the drive unit's output end in the second direction into a combined motion of the door assembly 2 in the second and first directions. When the two door assemblies 2 move towards each other in the second direction to close the opening 11, they can move along the first direction towards one side of the valve body 1 and press against the inner wall of the valve body 1, improving the sealing effect and greatly enhancing the stability and reliability of the vacuum system, creating a stable vacuum environment for the equipment. Simultaneously, the use of dual drive units, compared to a traditional single power source, results in a shorter stroke and significantly increased driving force, ensuring that the door assembly 2 can obtain sufficient sealing pressure under various operating conditions.

[0036] The present invention relates to a double-opening slide gate valve. The parts not described herein are the same as or can be implemented using existing technologies.

[0037] The above embodiments are only used to further illustrate a double-opening slide valve of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A double-leaf slide gate valve, characterized in that: The device includes a valve body, two symmetrically arranged door panel assemblies, two drive components, and a linkage mechanism. One side of the valve body has an opening, and the other side has a mounting groove communicating with the opening. The axial direction of the opening is a first direction. The two door panel assemblies are slidably disposed within the mounting groove along a second direction, which is perpendicular to the first direction. The two drive components are respectively disposed on opposite sides of the two door panel assemblies. The linkage mechanism is disposed between each drive component and its corresponding door panel assembly. The linkage mechanism converts the linear motion of the drive component's output end in the second direction into a combined motion of the door panel assembly in the second and first directions. When the output ends of the two drive components move towards each other along the second direction, the linkage mechanism causes the two door panel assemblies to move towards each other along the second direction to close the opening and move along the first direction towards one side of the valve body, pressing them against the inner wall of the valve body. When the output ends of the two drive components move away from each other along the second direction, the linkage mechanism causes the two door panel assemblies to move away from each other along the second direction to open the opening and move along the first direction towards the other side of the valve body to release the pressure on the inner wall of the valve body.

2. The double-opening slide gate valve according to claim 1, characterized in that: The linkage mechanism includes a horizontal plate, a push rod, and a vertical rod. The horizontal plate is connected to the door panel assembly and has a guide groove. The guide groove extends in an inclined direction. One end of the push rod is connected to the output end of the drive component, and the other end is rotatably connected to the vertical rod through a shaft coupling. The vertical rod is slidably fitted in the guide groove.

3. The double-opening slide gate valve according to claim 2, characterized in that: The tilting direction is projected onto the first direction in the same way as the second direction; one end of the guide groove, near the opposite side of the two door panel assemblies, is away from the opening, and the other end is near the opening.

4. The double-opening slide gate valve according to claim 2, characterized in that: The linkage mechanism also includes gaskets on both sides of the horizontal plate, and the gaskets are threadedly connected to the vertical rod.

5. The double-opening slide gate valve according to claim 2, characterized in that: The number of horizontal plates is two, and the two horizontal plates are arranged opposite each other on the door panel assembly along a third direction. The two ends of the vertical rod are slidably connected to the guide grooves of the two horizontal plates respectively, and the shaft is connected to the middle of the vertical rod. The third direction is perpendicular to the first direction and the second direction respectively.

6. The double-opening slide gate valve according to claim 2, characterized in that: The door panel assembly includes a first door panel and a second door panel arranged opposite to each other along the first direction, and the two ends of the horizontal plate are fixedly connected to the first door panel and the second door panel respectively.

7. The double-opening slide gate valve according to claim 1, characterized in that: The two door panel assemblies are respectively provided with corresponding grooves and protrusions on opposite sides. When the two door panel assemblies close the opening, the protrusions and grooves are inserted into each other.

8. The double-leaf slide gate valve according to claim 1, characterized in that: The driving component is a cylinder.

9. The double-leaf slide gate valve according to claim 1, characterized in that: The mounting groove is provided with a guide rail that extends along the second direction and slides in cooperation with the two door panel assemblies.

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