Vacuum on-off control valve

Abstract

The utility model discloses a vacuum on-off control valve which comprises a valve cavity, and a first cavity and a second cavity are arranged in the valve cavity and communicated through a first channel. An exhaust port, a vacuumizing port and an air outlet are formed in the valve cavity, the exhaust port and the vacuumizing port are communicated with the first cavity, and the air outlet is communicated with the second cavity; the valve cavity is provided with a filtering elbow communicated with the exhaust port, a vacuumizing adapter communicated with the vacuumizing port and a vacuumizing pipe communicated with the air outlet; a valve is arranged in the first cavity, an air cylinder assembly for driving the valve to move back and forth in the first cavity is arranged on the valve cavity, and the valve is switched back and forth between blocking of the exhaust port and the first channel, so that the vacuumizing adapter pipe is communicated with the filtering elbow or the vacuumizing pipe. The air cylinder drives the valve to achieve opening and closing of the adsorption platform function, the vacuum pump communicated with the vacuumizing adapter pipe and the filtering elbow are connected with the atmosphere, the vacuum pump is prevented from being blocked and burnt out, the overall structure is simple, the switching speed is high, abrasion is small, and maintenance is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology and relates to a vacuum on / off control valve for a vacuum adsorption platform. Background Technology

[0002] Vacuum adsorption platforms play a crucial role in numerous industrial and related applications, and the opening and closing control of their pipelines is essential for the precision and efficiency of the entire adsorption operation. Currently, pneumatic ball valves are commonly used to control the opening and closing of the pipelines in vacuum adsorption platforms.

[0003] However, this control method has certain limitations. On the one hand, the purchase, installation, and associated air supply costs of pneumatic ball valves are relatively high, increasing the overall equipment investment and operating costs. On the other hand, pneumatic ball valves themselves have performance deficiencies; their permissible switching frequency is relatively low, making it difficult to meet the needs of some pipelines requiring frequent opening and closing operations. Moreover, with frequent switching actions, the valve body of the pneumatic ball valve is prone to wear, leading to damage. This not only affects normal pipeline control functions but may also cause equipment failure, increasing maintenance costs and downtime, which is detrimental to the continuous and stable operation of related tasks.

[0004] Therefore, it is necessary to improve existing technologies to overcome their shortcomings. Utility Model Content

[0005] The purpose of this utility model is to provide a vacuum on / off control valve, which solves the technical problems mentioned in the background art by improving the valve structure.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A vacuum on / off control valve includes a valve body containing a first chamber and a second chamber that are connected to each other. A channel between the first and second chambers is a first channel. The valve body has an exhaust port, a vacuum port, and an outlet. The exhaust port and vacuum port are located on one side of the first chamber and connected to it, while the outlet is located on one side of the second chamber and connected to it. The valve body has a filter elbow connected to the exhaust port, a vacuum adapter connected to the vacuum port, and a vacuum pipe connected to the outlet. A valve is located in the first chamber, and a cylinder assembly is located in the valve body to drive the valve to move back and forth within the first chamber. The valve switches between blocking the exhaust port and the first channel, connecting the vacuum adapter to the filter elbow or the vacuum pipe.

[0008] As a further improvement of one embodiment of the present invention, the cylinder assembly includes a cylinder disposed on the valve cavity and a connecting rod connected to the cylinder, the connecting rod passing through the second chamber and the first channel and being fixedly connected to the valve.

[0009] As a further improvement of one embodiment of the present invention, a first sealing gasket and a second sealing gasket are respectively provided at the front and rear ends of the valve. The first sealing gasket is directly opposite the exhaust port and can cover the outer contour of the exhaust port, and the second sealing gasket is directly opposite the first channel and can cover the outer contour of the first channel.

[0010] As a further improvement of one embodiment of the present invention, the valve cavity has a "cubic prism" structure, the cylinder and the filter elbow are symmetrically distributed at both ends of the valve cavity, the vacuum tube is set at the upper end of the valve cavity, and the vacuum adapter is set on one side wall of the valve cavity.

[0011] As a further improvement of one embodiment of the present invention, the end of the filter elbow has a first flange, which can be locked onto the valve cavity by bolts.

[0012] As a further improvement of one embodiment of the present invention, the end of the vacuum transfer tube has a second flange, which can be locked onto the valve cavity by bolts.

[0013] As a further improvement of one embodiment of the present invention, the upper end face of the valve cavity is a detachable cover plate, the cover plate is fastened to the valve cavity by bolts, and the vacuum tube is disposed on the cover plate.

[0014] The above technical solution has the following advantages: the adsorption platform can be opened and closed by driving the valve with a cylinder, which can connect the vacuum pump and filter elbow connected by the vacuum transfer pipe to the atmosphere, preventing the vacuum pump from stalling and burning out. The overall structure is simple, the switching speed is fast, the wear is small, and the maintenance is convenient. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 A three-dimensional structural diagram of this utility model.

[0018] Figure 2 This is a top view of the structure provided for this utility model.

[0019] Figure 3 This is a schematic diagram of the main structure of the present invention.

[0020] Figure 4 for Figure 3 A cross-sectional view along the AA direction.

[0021] In the picture:

[0022] 1-Valve cavity; 11-Cover plate; 12-Second chamber; 13-First chamber; 14-Exhaust port; 15-First channel; 16-Vacuum port;

[0023] 2-Cylinder;

[0024] 3-Filter elbow;

[0025] 4-Vacuum tube;

[0026] 5-Vacuum adapter;

[0027] 6-Valve;

[0028] 7-Second sealing gasket;

[0029] 8-First sealing gasket;

[0030] 9-Connecting rod. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0033] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example

[0034] See Figures 1-4 As shown, a vacuum on / off control valve is designed to solve the problems of high cost, limited switching frequency, and easy wear and damage of valve body that exist in the existing control of vacuum adsorption platform pipelines using pneumatic ball valves.

[0035] The vacuum on / off control valve mainly includes a valve body 1, which contains a first chamber 13 and a second chamber 12 that are interconnected, with a first channel 15 between them. Multiple interfaces are arranged on the valve body 1, including an exhaust port 14, a vacuum port 16, and an air outlet. The exhaust port 14 and the vacuum port 16 are located on one side of and connected to the first chamber 13, while the air outlet is located on one side of and connected to the second chamber 12.

[0036] To ensure the effective operation of each function, the valve chamber 1 is equipped with various adapter components. A filter elbow 3, connected to the exhaust port 14, is open to the atmosphere and filters the air entering the first chamber 13. A vacuum adapter pipe 5, connected to the vacuum port 16, can be connected to external vacuum equipment. A vacuum pipe 4, connected to the exhaust port, is also connected to the adsorption platform.

[0037] A valve 6 is installed in the first chamber 13, which is a key component for controlling the gas passage. A cylinder assembly is installed on the valve body 1, which drives the valve 6 to move back and forth within the first chamber 13. Through this driving method, the valve 6 can precisely switch back and forth between blocking the exhaust port 14 and the first channel 15, thereby achieving selective connection between the vacuum adapter 5 and the filter elbow 3 or the vacuum tube 4, effectively and flexibly controlling the gas flow in the vacuum tube 4, and enabling the adsorption platform to operate effectively.

[0038] Specifically, the cylinder assembly includes a cylinder 2 mounted on the valve chamber 1 and a connecting rod 9 connected to the cylinder 2. The connecting rod 9 passes through the second chamber 12 and the first channel 15 and is fixedly connected to the valve 6, working together to achieve precise driving and control of the valve.

[0039] In this vacuum on / off control valve, a first sealing gasket 8 and a second sealing gasket 7 are respectively provided at the front and rear ends of the valve 6.

[0040] The first sealing gasket 8, located at the front end of valve 6, is positioned directly opposite exhaust port 14. When valve 6 is in a specific operating state, the first sealing gasket 8 precisely covers the outer contour of exhaust port 14, thereby forming a reliable sealing effect and effectively preventing gas leakage from exhaust port 14. At this time, the vacuum adapter 5 is connected to the vacuum tube 4 through the first channel 15, enabling external vacuum equipment to provide adsorption force to the adsorption platform connected to the vacuum tube 4.

[0041] The second sealing gasket 7, located at the rear end of valve 6, faces the first channel 15. During the operation of valve 6, the second sealing gasket 7 tightly covers the outer contour of the first channel 15, thereby forming a reliable seal and effectively preventing gas leakage from the first channel 15. At this time, valve 6 blocks the gas path between vacuum adapter 5 and vacuum pipe 4, cutting off the adsorption force of the adsorption platform. Simultaneously, vacuum adapter 5 is connected to filter elbow 3, and external air flows from vacuum adapter 5 to external vacuum equipment after being filtered by filter elbow 3.

[0042] The above structural design ensures the sealing and accuracy of the entire vacuum on / off control valve when controlling the gas flow, further improving the performance and stability of the equipment.

[0043] In this embodiment, the valve cavity 1 has a cuboid structure, which facilitates the rational layout of the components. The cylinder 2 and the filter elbow 3 are symmetrically distributed at both ends of the valve cavity 1, which contributes to the overall balance and stability. The vacuum tube 4 is located at the upper end of the valve cavity 1 for easy connection with external equipment to achieve gas transmission. The vacuum adapter tube 5 is installed on one side wall of the valve cavity 1.

[0044] It is worth mentioning that the end of the filter elbow 3 is equipped with a first flange, which can be firmly locked to the valve cavity 1 with bolts, ensuring the stability of the connection and the convenience of disassembly and assembly. Similarly, the end of the vacuum adapter 5 has a second flange, which is also firmly fixed to the valve cavity 1 with bolts. This series of installation designs ensures reliable connection between the various components of the entire vacuum on / off control valve, thereby improving the overall convenience of disassembly and assembly.

[0045] The valve chamber 1 of this vacuum on / off control valve has a removable cover plate 11 on its upper end face. The cover plate 11 is securely locked to the valve chamber 1 with bolts to ensure a seal. The vacuum tube 4 is installed on the cover plate 11. This design allows the cover plate 11 to be easily removed when the equipment needs maintenance, facilitating internal inspection and maintenance of the vacuum tube 4.

[0046] This invention uses cylinder 2 to drive valve 6 to open and close the adsorption platform, allowing the vacuum pump connected to vacuum adapter 5 and filter elbow 3 to be connected to the atmosphere, preventing the vacuum pump from stalling and burning out. Its overall structure is simple, offering fast switching speeds to quickly respond to different working needs of the adsorption platform, and minimal wear between components, significantly extending its service life. Furthermore, features such as a removable cover plate on the upper surface of the valve chamber greatly facilitate maintenance, allowing for easy inspection and repair, ensuring continuous and stable operation of the equipment.

[0047] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum on / off control valve, characterized in that: The device includes a valve cavity containing a first chamber and a second chamber that are connected to each other. A first channel connects the first and second chambers. The valve cavity has an exhaust port, a vacuum port, and an outlet. The exhaust port and vacuum port are located on one side of the first chamber and connected to it, while the outlet is located on one side of the second chamber and connected to it. The valve cavity has a filter elbow connected to the exhaust port, a vacuum adapter connected to the vacuum port, and a vacuum pipe connected to the outlet. A valve is located in the first chamber, and a cylinder assembly on the valve cavity drives the valve to move back and forth within the first chamber. The valve switches between blocking the exhaust port and the first channel, connecting the vacuum adapter to the filter elbow or the vacuum pipe.

2. The vacuum on / off control valve according to claim 1, characterized in that: The cylinder assembly includes a cylinder disposed on a valve chamber and a connecting rod connected to the cylinder. The connecting rod passes through a second chamber and a first channel and is fixedly connected to the valve.

3. The vacuum on / off control valve according to claim 2, characterized in that: The valve is provided with a first sealing gasket and a second sealing gasket at its front and rear ends, respectively. The first sealing gasket is directly opposite the exhaust port and can cover the outer contour of the exhaust port, and the second sealing gasket is directly opposite the first channel and can cover the outer contour of the first channel.

4. The vacuum on / off control valve according to claim 3, characterized in that: The valve cavity has a rectangular parallelepiped structure. The cylinder and filter elbow are symmetrically distributed at both ends of the valve cavity. The vacuum tube is located at the upper end of the valve cavity, and the vacuum adapter is located on one side wall of the valve cavity.

5. The vacuum on / off control valve according to claim 4, characterized in that: The end of the filter elbow has a first flange, which can be locked onto the valve cavity by bolts.

6. The vacuum on / off control valve according to claim 4, characterized in that: The end of the vacuum adapter has a second flange, which can be locked onto the valve cavity by bolts.

7. The vacuum on / off control valve according to claim 4, characterized in that: The upper end face of the valve cavity is a detachable cover plate, which is bolted to the valve cavity, and the vacuum tube is installed on the cover plate.

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