Multi-channel vacuum diaphragm valve

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By designing a multi -channel vacuum diaphragm valve, using the electric push rod and blocking plate in the regulating component to achieve flexible control of multiple gas channels, solve the problem that the existing technology cannot control multiple gas channels at the same time, improve the gas of the gas, and improve the gas. The stability and efficiency of flow.

CN222416141UActive Publication Date: 2025-01-28SHANDONG BIG LINE MEASUREMENT & CONTROL INSTR ENG CO LTD

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Patent Information

Application Number: CN202421159218.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-27
Publication Date: 2025-01-28
Estimated Expiration: 2034-05-27

AI Technical Summary

Technical Problem

Existing vacuum diaphragm valves cannot control multiple gas passages simultaneously, limiting the need for complex gas flow control.

Method used

A multi -channel vacuum diaphragm valve is designed to achieve control and switching of multiple channels through the combination of main valve body, auxiliary valve body and adjustment component. The regulating component includes an electric push rod and a blocking plate. Through the driver of the electric push rod, the blocking plate can be flexibly blocked or lifted on the channel.

Benefits of technology

The flexible switching of multiple gas channels is achieved, facilitating the control of complex gas flow, simplifying the structure and control system of the gas pipeline, reducing the leakage point, thereby improving the stability and efficiency of gas flow.

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Abstract

The utility model belongs to the field of diaphragm valves, particularly relates to a multi-channel vacuum diaphragm valve, and aims to solve the problems that an existing vacuum diaphragm valve cannot control a plurality of gas channels at the same time, and has limitation on complex gas flow control requirements, and adopts the following scheme that the multi-channel vacuum diaphragm valve comprises a main valve body, four channels are annularly formed in the periphery of the main valve body, and communicating pipes fixedly communicate with the outer sides, located at the four channels, of the main valve body; an output port and an input port are formed in the two ends of the auxiliary valve body respectively, and the output port is communicated with the input port; the adjusting assembly is arranged in the main valve body and used for controlling and switching on and off of each channel. According to the utility model, through the arrangement of the adjusting assembly, the switching among different passages can be flexibly realized, the complicated gas flow can be conveniently controlled, and meanwhile, the structure of a gas pipeline and a control system can be simplified, so that the stability and the efficiency of the gas flow are improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm valves, in particular to a multi-channel vacuum diaphragm valve. Background Art

[0002] The vacuum diaphragm valve is a valve commonly used to control the flow of gas. Its main working principle is to use the driving force to drive the valve stem to press the rubber membrane directly onto the valve seat, thereby controlling the opening and closing of the valve and achieving control of the gas flow.

[0003] A vacuum diaphragm valve proposed by the search authorization announcement number CN208734924 belongs to the field of diaphragm valve technology and equipment, including a shell and a piston. The shell is set as a cylinder, placed vertically, and the outer layer is made of stainless steel material; a cavity is set inside the shell; a limit block is set at the upper end of the cavity, and the limit block is welded to the shell; the lower end of the spring is connected to the piston, and the piston is in close contact with the inner surface of the shell; the left and right ends of the second pressure block are respectively connected to a connecting rod with screws; there are two connecting rods, which are symmetrical about the central axis of the piston; the left and right ends of the diaphragm are respectively connected with annular rings, which are set to L shape; a valve body is set at the lower end of the pressure seat, and the valve body is screwed to the pressure seat; the device has the advantages of simple structural design, small size, few failures, strong sealing, and long service life.

[0004] However, there are still the following defects:

[0005] 1. The vacuum diaphragm valve in the above application is only suitable for some simple gas flow switch control and cannot control multiple gas passages at the same time. It is limited to complex gas flow control requirements and has certain limitations. Utility Model Content

[0006] The utility model aims to solve the shortcomings of the prior art, that is, it is unable to control multiple gas passages simultaneously, has restrictions on complex gas flow control requirements, and has limitations, and proposes a multi-channel vacuum diaphragm valve.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A multi-channel vacuum diaphragm valve, comprising:

[0009] A main valve body, wherein four channels are formed in a ring shape around the main valve body, and the outer sides of the main valve body at the four channels are fixedly connected with connecting pipes;

[0010] An auxiliary valve body, wherein an output port and an input port are respectively provided at two ends of the auxiliary valve body, and the output port and the input port are communicated with each other;

[0011] The regulating component is arranged in the main valve body and is used to control and switch the on and off of each channel.

[0012] In a possible design, the adjusting assembly includes a fixed block fixedly arranged at the center of the main valve body, four guide rods are fixedly arranged in a rectangular shape on three sides of the fixed block, the other sides of the four guide rods on the same side are fixedly connected to the inner wall of the main valve body, and the four guide rods on the same side are externally slidably provided with a same blocking plate that can block the main valve body channel, electric push rods are fixedly arranged on three sides of the fixed block, and the output ends of the three electric push rods are fixedly connected to one side of the three blocking plates.

[0013] In a possible design, a sealing gasket is fixedly provided on the top of the auxiliary valve body, a through hole is opened on the sealing gasket to communicate with the auxiliary valve body, and a valve body cover is fixedly provided on the top of the auxiliary valve body above the sealing gasket.

[0014] In a possible design, the top of the valve body cover is threadedly connected to a threaded valve stem, the bottom end of the threaded valve stem is located inside the valve body cover and a sealing gasket is fixedly provided, and the top end of the threaded valve stem is fixedly provided with a knob.

[0015] In a possible design, flanges are fixedly provided at one end of the four connecting pipes, the output port and the input port.

[0016] In a possible design, the input port of the auxiliary valve body is fixedly connected and communicated with the flange on the main valve body connecting pipe through a flange, and the connecting pipe connected to the auxiliary valve body is located inside the main valve body without a blocking plate.

[0017] In the present application, when starting to use, the output port on the auxiliary valve body and the three connecting pipes on the main valve body are connected to the vacuum equipment or system through the flange. After the connection is completed, the vacuum diaphragm valve is energized and then the knob is turned. When the knob is turned, the threaded valve stem is driven to move upward on the valve body cover. When the threaded valve stem moves upward, the blocking gasket is driven upward so that the blocking gasket is separated from the blockage of the output port and the input port on the auxiliary valve body, so that the output port is connected to the input port. When it is necessary to release the blockage of the main valve body channel, the electric push rod is started, and the output end of the electric push rod retracts. When the output end of the electric push rod retracts, the blocking plate is driven to move on the guide rod to the side away from the channel opening, so that the blocking of the main valve body channel by the blocking plate is released. Otherwise, the output end of the electric push rod extends The sealing plate can be pushed to move to the side close to the channel opening to seal the channel on the main valve body, so that the gas enters the main valve body through the connecting pipe, and is then transported to the auxiliary valve body through the input port, and then the gas is discharged through the output port. When it is necessary to control the connection of different channels on the main valve body, the electric push rod at the corresponding position is started according to the above-mentioned working principle, so that the electric push rod drives the sealing plate to disengage from the blockage of the channel. At the same time, the electric push rod can also be controlled to push the sealing plate to seal the channel at the corresponding position, so as to flexibly realize the switching between different passages and facilitate the control of complex gas flow. At the same time, it can simplify the structure and control system of the gas pipeline, reduce the leakage points at the pipeline joints, and thus improve the stability and efficiency of the gas flow.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, by adjusting the setting of the assembly, the electric push rod can drive the blocking plate to disengage from blocking the channel, and at the same time, the electric push rod can be controlled to push the blocking plate to block the channel at the corresponding position, so as to flexibly realize the switching between different passages, facilitate the control of complex gas flow, and simplify the structure and control system of the gas pipeline, reduce the leakage points at the pipeline connection, thereby improving the stability and efficiency of gas flow;

[0020] The utility model can flexibly realize switching between different passages by adjusting the setting of the components, facilitate the control of complex gas flow, and simplify the structure and control system of the gas pipeline, thereby improving the stability and efficiency of the gas flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall main structure of a multi-channel vacuum diaphragm valve proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the overall side view structure of a multi-channel vacuum diaphragm valve proposed by the utility model;

[0023] Figure 3This is a schematic diagram of the overall split structure of the auxiliary valve body of a multi-channel vacuum diaphragm valve proposed by the utility model;

[0024] Figure 4 The utility model provides a schematic diagram of the top cross-sectional structure of a main valve body of a multi-channel vacuum diaphragm valve.

[0025] In the figure: 1. main valve body; 101. connecting pipe; 2. auxiliary valve body; 201. output port; 202. input port; 3. fixing block; 4. guide rod; 5. blocking plate; 6. electric push rod; 7. sealing gasket; 8. blocking gasket; 9. valve body cover; 10. threaded valve stem; 11. knob; 12. flange. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] Reference Figure 1-4 , a diaphragm valve, comprising:

[0029] The main valve body 1 has four channels formed in a ring shape around it, and the outer sides of the main valve body 1 at the four channels are fixedly connected with connecting pipes 101;

[0030] The auxiliary valve body 2 has an output port 201 and an input port 202 at both ends thereof, and the output port 201 and the input port 202 are connected;

[0031] The regulating component is arranged in the main valve body 1 and is used to control and switch the on and off of each channel.

[0032] The above technical solution can achieve the connection between the main valve body 1 and the auxiliary valve body 2 through the setting of the connecting pipe 101, and at the same time facilitate the connection between the diaphragm valve and other pipelines. Through the setting of the output port 201 and the input port 202 of the auxiliary valve body 2, it can facilitate the input and output of gas. Through the setting of the adjustment component, it can flexibly realize the switching between different passages, which is convenient for controlling complex gas flow. At the same time, it can simplify the structure and control system of the gas pipeline, thereby improving the stability and efficiency of the gas flow.

[0033] Reference Figure 4The regulating assembly includes a fixed block 3 fixedly arranged at the inner center of the main valve body 1, and four guide rods 4 are fixedly arranged in a rectangular shape on three sides of the fixed block 3. The other sides of the four guide rods 4 on the same side are fixedly connected to the inner wall of the main valve body 1, and the four guide rods 4 on the same side are slidably arranged on the outside with a blocking plate 5 that can block the channel of the main valve body 1. Electric push rods 6 are fixedly arranged on three sides of the fixed block 3, and the output ends of the three electric push rods 6 are fixedly connected to one side of the three blocking plates 5 respectively.

[0034] The above technical solution can achieve the goal of flexibly switching between different passages through the setting of the electric push rod 6 and the sealing plate 5, which is convenient for controlling complex gas flows, and can also simplify the structure and control system of the gas pipeline, thereby improving the stability and efficiency of the gas flow. Through the setting of the guide rod 4, the sealing plate 5 can be made more stable when moving, thereby increasing the stability of the sealing plate 5. A sealing ring is provided on the side of the sealing plate 5 close to the inner wall of the main valve body 1, which can increase the sealing between the sealing plate 5 and the channel.

[0035] The present application can be used in the technical field of multi-channel vacuum diaphragm valves, and can also be used in other fields applicable to the present application.

[0036] Example 2

[0037] refer to Figure 3 , improved on the basis of embodiment 1: a multi-channel vacuum diaphragm valve, which is applied to the technical field of multi-channel vacuum diaphragm valves, a sealing gasket 7 is fixedly provided on the top of the auxiliary valve body 2, a through hole is opened on the sealing gasket 7 and connected to the auxiliary valve body 2, and a valve body cover 9 is fixedly provided on the top of the auxiliary valve body 2 above the sealing gasket 7.

[0038] The above technical solution can achieve the goal of increasing the sealing between the auxiliary valve body 2 and the valve body cover 9 to prevent gas leakage through the setting of the sealing gasket 7. Through the setting of the valve body cover 9, the internal components of the diaphragm valve can be protected and the sealing of the auxiliary valve body 2 can be facilitated.

[0039] Reference Figure 3 The top of the valve body cover 9 is threadedly connected with a threaded valve stem 10 , the bottom end of the threaded valve stem 10 is located inside the valve body cover 9 and is fixedly provided with a sealing gasket 8 , and the top end of the threaded valve stem 10 is fixedly provided with a knob 11 .

[0040] The above technical solution can achieve the setting of the knob 11, the threaded valve stem 10 and the sealing gasket 8. When the knob 11 is turned, the threaded valve stem 10 is driven to move upward on the valve body cover 9. When the threaded valve stem 10 moves upward, the sealing gasket 8 is driven to move upward, so that the sealing gasket 8 is separated from the blockage of the output port 201 and the input port 202 on the auxiliary valve body 2, so that the output port 201 is connected with the input port 202, so as to facilitate the gas flow between the auxiliary valve body 2 and the main valve body 1.

[0041] Reference Figure 3-4 A flange 12 is fixedly provided at one end of the four connecting pipes 101 , the output port 201 and the input port 202 .

[0042] The above technical solution can achieve the purpose of facilitating the connection between the connecting pipe 101 on the main valve body 1 and the output port 201 and the input port 202 on the auxiliary valve body 2 and the external pipeline through the setting of the flange 12, and also facilitates the connection between the main valve body 1 and the auxiliary valve body 2.

[0043] Reference Figure 1 , Figure 2 and Figure 4 The input port 202 of the auxiliary valve body 2 is fixedly connected and communicated with the flange 12 on the connecting pipe 101 of the main valve body 1 through the flange 12. The connecting pipe 101 connected to the auxiliary valve body 2 is located inside the main valve body 1 without a blocking plate 5.

[0044] The above technical solution can achieve the goal of not providing a blocking plate 5 inside the main valve body 1 through the connecting pipe 101 connected to the auxiliary valve body 2 , which can facilitate the auxiliary valve body 2 to control the gas flow with the main valve body 1 .

[0045] However, as is well known to those skilled in the art, the working principle and wiring method of the electric push rod 6 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selection according to their needs or convenience.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-channel vacuum diaphragm valve, characterized in that: include: A main valve body (1), wherein four channels are formed in a ring shape around the main valve body (1), and connecting pipes (101) are fixedly connected to the outer sides of the main valve body (1) at the four channels; An auxiliary valve body (2), wherein two ends of the auxiliary valve body (2) are respectively provided with an output port (201) and an input port (202), and the output port (201) and the input port (202) are connected; The regulating component is arranged in the main valve body (1) and is used to control and switch each channel on and off.

2. A multi-channel vacuum diaphragm valve according to claim 1, characterized in that: The regulating assembly comprises a fixed block (3) fixedly arranged at the center of the main valve body (1), four guide rods (4) are fixedly arranged in a rectangular shape on three sides of the fixed block (3), the other sides of the four guide rods (4) located on the same side are fixedly connected to the inner wall of the main valve body (1), and the four guide rods (4) located on the same side are externally slidably provided with a same blocking plate (5) capable of blocking the channel of the main valve body (1), electric push rods (6) are fixedly arranged on three sides of the fixed block (3), and the output ends of the three electric push rods (6) are fixedly connected to one side of the three blocking plates (5) respectively.

3. A multi-channel vacuum diaphragm valve according to claim 1, characterized in that: A sealing gasket (7) is fixedly arranged on the top of the auxiliary valve body (2); a through hole is opened on the sealing gasket (7) and is connected to the auxiliary valve body (2); and a valve body cover (9) is fixedly arranged on the top of the auxiliary valve body (2) above the sealing gasket (7).

4. A multi-channel vacuum diaphragm valve according to claim 3, characterized in that: The top of the valve body cover (9) is threadedly connected to a threaded valve stem (10), the bottom end of the threaded valve stem (10) is located inside the valve body cover (9) and is fixedly provided with a sealing gasket (8), and the top end of the threaded valve stem (10) is fixedly provided with a knob (11).

5. The multi-channel vacuum diaphragm valve according to claim 1, characterized in that: One end of the four connecting pipes (101), the output port (201) and the input port (202) is fixedly provided with a flange (12).

6. A multi-channel vacuum diaphragm valve according to claim 5, characterized in that: The input port (202) of the auxiliary valve body (2) is fixedly connected and communicated with the flange (12) on the connecting pipe (101) of the main valve body (1) via the flange (12); the connecting pipe (101) connected to the auxiliary valve body (2) is located inside the main valve body (1) and no blocking plate (5) is provided.