A double acting lever pressure flow amplifier

Abstract

The utility model discloses an industry flow control field's double -acting lever formula pressure flow amplifier, including organism, lever assembly and two independent gas path, gas path includes gas valve core, air inlet cavity, air outlet cavity, adjusting chamber, air inlet, air outlet, IP gas path, air inlet communicates with air inlet cavity, and air outlet cavity communicates with air outlet, and adjusting chamber communicates with IP gas path, adjusting air flows into adjusting chamber from IP gas path, and lever assembly is rotated, and lever assembly pushes gas valve core, so that air inlet cavity communicates with air outlet cavity, and input air flows through air inlet, air inlet cavity, air outlet cavity, air outlet in proper order, becomes output air. The utility model discloses adopting lever structure design, and the flow and pressure of two gas paths are controlled simultaneously through the reciprocating rotation of a lever, and the adjusting thrust size of two gas paths is different, can be applicable to more application scenarios.

Description

Technical Field

[0001] This utility model relates to the field of industrial flow control, and in particular to a double-acting lever-type pressure flow amplifier. Background Technology

[0002] Automatic control valves are an important component of industrial automation instrumentation. Valve positioners, as key control accessories for control valves, significantly improve valve control characteristics, enhancing control accuracy, response speed, and flexibility. The pressure generated by the electrical conversion module in the valve positioner is typically 0.015–1.0 kg / cm². 2 The circuit pressure of the pneumatic actuator of the positioner typically needs to be 1.4–7.0 kg / cm². 2 Therefore, pressure-flow amplifiers are needed to coordinate them. Pressure-flow amplifiers, also known as pneumatic amplifiers, are essentially micro-pressure control elements. They use a very low-pressure, low-flow-rate air pressure signal as the input control signal to obtain a high-pressure, high-flow-rate air pressure signal capable of driving pneumatic actuators.

[0003] Pressure and flow amplifiers can be classified into several types according to their structure, including diaphragm type, diaphragm shut-off type, diaphragm slider type, and diaphragm sliding column type; according to the form of air resistance inside their structure, they can be classified into adjustable amplifiers and non-adjustable amplifiers; and according to their performance, they can be classified into on / off amplifiers and proportional amplifiers. Diaphragm proportional amplifiers are generally used in valve positioners.

[0004] In common dual-path amplifiers, a reciprocating piston is typically used to simultaneously control the flow and pressure of both air paths. The drawback of this approach is that there is only one regulating air path, and the thrust exerted by this path on the piston is fixed, making it difficult to adjust flexibly according to actual conditions. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a dual-acting lever-type pressure and flow amplifier, which uses a single lever to simultaneously control and regulate the flow and pressure of two air paths. It has two regulating air paths, and the thrust of these two regulating air paths is different, making it suitable for more application scenarios.

[0006] The technical solution of this utility model is as follows:

[0007] A double-acting lever-type pressure and flow amplifier includes a body 1, a lever assembly 2, a valve core 3, a valve core 2 4, a spring plate 1 5, and a spring plate 2 6.

[0008] The body 1 has six chambers: intake chamber 7, intake chamber 8, exhaust chamber 9, exhaust chamber 10, regulating chamber 11, and regulating chamber 12. Intake chamber 7 and exhaust chamber 9 are connected by valve pipe 13, whose central axis is a straight line. Intake chamber 8 and exhaust chamber 10 are connected by valve pipe 14, whose central axis is a straight line. The central axis of valve pipe 13 is parallel to the central axis of valve pipe 14, and the distance between them is H. When viewed from a plane perpendicular to valve pipe 13, the projections of intake chamber 7, exhaust chamber 9, and regulating chamber 11 can completely block the projection of valve pipe 13, and the projections of intake chamber 8, exhaust chamber 10, and regulating chamber 12 can completely block the projection of valve pipe 14.

[0009] The body 1 is provided with 6 pipes: air inlet 15, air inlet 2 16, air outlet 17, air outlet 2 18, IP air inlet 19, and IP air inlet 2 20; one end of air inlet 15 is connected to air inlet chamber 17, and the other end of air inlet 15 is connected to the outside, and compressed air from the outside flows into air inlet chamber 17 from air inlet 15; one end of air inlet 2 16 is connected to air inlet chamber 2 8, and the other end of air inlet 2 16 is connected to the outside, and compressed air from the outside flows into air inlet chamber 2 8 from air inlet 2 16. The compressed air flowing into intake duct 15 and intake duct 2 16 is called input air; one end of exhaust duct 17 is connected to exhaust chamber 9, and the other end of exhaust duct 17 is connected to the outside, and the compressed air in exhaust chamber 9 flows out to the outside through exhaust duct 17; one end of exhaust duct 2 18 is connected to exhaust chamber 2 10, and the other end of exhaust duct 2 18 is connected to the outside, and the compressed air in intake chamber 2 10 flows out to the outside through exhaust duct 2 18; the compressed air flowing out of exhaust duct 17 and exhaust duct 2 18 is called output air.

[0010] The valve core 3 is shaped like a dumbbell, with a round rod in the middle and a large spherical crown and a small spherical crown at each end; the large spherical crown is called the valve stop 301, and the small spherical crown is called the lever stop 302; the valve core 3 is located inside the valve passage 13, and the central axis of the valve core 3 coincides with the central axis of the valve passage 13; the valve core 3 can move linearly along the central axis of the valve passage 13; after the valve core 3 moves to the designated position in the direction of the outlet chamber 9, the valve stop 301 will be blocked by the body 1, and this position is called valve 1; the spring plate 5 presses the valve stop 301 tightly against valve 1; when the valve stop 301 is stopped at valve 1, the intake chamber 7 and the outlet chamber 9 are not connected, and compressed air cannot flow from the intake chamber 7 to the outlet chamber 9;

[0011] The structure of valve core 2 4 is the same as that of valve core 1 3. It is located inside valve passage 2 14, and the central axis of valve core 2 4 coincides with the central axis of valve passage 2 14. Valve core 2 4 can move linearly along the central axis of valve passage 2 14. After valve core 2 4 moves to a designated position in the direction of valve passage 2 14, valve stop 401 will be blocked by the engine body 1. This position is called valve 2. Spring plate 2 6 presses valve stop 401 tightly against valve 2. When valve stop 401 is stopped at valve 2, intake chamber 2 8 and exhaust chamber 2 10 are not connected, and compressed air cannot flow from intake chamber 2 8 to exhaust chamber 2 10.

[0012] The lever assembly 2 includes a lever shaft 21, a lever 22, a first valve top 23, and a second valve top 24; the lever shaft 21 is a round rod structure and is fixed to the machine body 1 according to the following conditions:

[0013] (1-1) The central axis of lever shaft 21 is perpendicular to the central axis of valve passage 13;

[0014] (1-2) Make a plane with the central axis of valve passage 13 and the central axis of valve passage 24. The projection of lever axis 21 on this plane is located between the central axis of valve passage 13 and the central axis of valve passage 24.

[0015] The lever 22 is a rectangular plate structure with a through hole, called the lever shaft hole 25; the diameter of the lever shaft hole 25 is larger than the diameter of the lever shaft 21; the lever shaft 21 passes through the lever shaft hole 25, and the lever 22 can move in a circle around the central axis of the lever shaft 21.

[0016] The cross-sectional view of the valve top 23 is a T-shaped structure. The valve top 23 can be obtained by rotating it around the axis of symmetry of the T-shaped structure. The valve top 23 can be divided into a large cylinder and a small cylinder. The large cylinder is called the valve top piston 2301, and the small cylinder is called the valve top pillar 2302. The central axis of the valve top piston 2301 coincides with the central axis of the valve top pillar 2302.

[0017] The structure of valve top 24 is the same as that of valve top 23; valve top 24 and valve top 23 are fixed to lever 22 under the following conditions:

[0018] (2-1) When viewed from a plane perpendicular to the central axis of the lever shaft hole 25, the projection of the lever shaft hole 25 on the plane is located between the projections of valve top 24 and valve top 23.

[0019] (2-2) The central axis of valve top 23 is parallel to the central axis of valve top 24;

[0020] (2-3) The central axis of valve top 23 is perpendicular to the central axis of lever shaft hole 25;

[0021] (2-4) The distance between the central axis of valve top 23 and the central axis of valve top 24 is H;

[0022] Valve top piston 2301 of valve top 23 is located in regulating chamber 11; valve top piston 2401 of valve top 24 is located in regulating chamber 22; one end of IP intake passage 19 is connected to regulating chamber 11, and the other end is connected to the outside, and compressed air from the outside flows into regulating chamber 11 from IP intake passage 19; one end of IP intake passage 20 is connected to regulating chamber 22, and the other end is connected to the outside, and compressed air from the outside flows into regulating chamber 22 from IP intake passage 20; the compressed air flowing into regulating chamber 11 and regulating chamber 22 is called regulating air;

[0023] When regulating air flows into regulating chamber 11 from intake port 19, the valve top piston 2301 of valve top 23 is pushed by the regulating air, causing valve top 23 to move towards outlet chamber 9. Simultaneously, valve top 23 drives lever 22 to rotate, causing valve top 24 to move away from outlet chamber 12. Under the push of spring plate 26, lever stop 402 of valve core 24 remains in contact with valve top column 2402 of valve top 24, causing valve core 24 to move closer to valve 2, reducing the output air flowing from outlet chamber 10 into outlet port 18. As the amount of regulating air flowing into regulating chamber 11 gradually increases, valve top column 2302 of valve top 23 and lever stop 3 of valve core 24... 02 makes contact and pushes valve core 3, causing valve stop 301 of valve core 3 to leave valve 1, and intake chamber 7 and exhaust chamber 9 to connect; input air from intake passage 15 flows through intake chamber 7 and exhaust chamber 9 in sequence, and finally flows out from exhaust passage 17 to become output air; the more regulating air inside regulating chamber 11, the more output air flows out from exhaust passage 17; at the same time, valve core 4 continues to move closer to valve 2, and the compressed air flowing from exhaust chamber 2 10 into exhaust passage 2 18 gradually decreases; when valve stop 401 of valve core 4 contacts valve 2, intake chamber 2 8 and exhaust chamber 2 10 are no longer connected, and the flow rate of compressed air in exhaust passage 2 18 reaches the minimum value;

[0024] When regulating air flows into regulating chamber 12 from intake passage 20, the valve top piston 2401 of valve top 24 is pushed by the regulating air, and valve top 24 moves towards outlet chamber 10. Simultaneously, valve top 24 drives lever 22 to rotate, causing valve top 23 to move away from outlet chamber 9. Under the push of spring plate 5, lever stop 302 of valve core 3 remains in contact with valve top column 2302 of valve top 23, and valve core 3 moves closer to valve 1, reducing the amount of compressed air flowing from outlet chamber 9 into outlet passage 17. Gradually increasing the amount of regulating air flowing into regulating chamber 12, valve top column 2402 of valve top 24 and lever stop 2402 of valve core 24... 2. Contact occurs and pushes valve core 2 4, causing valve stop 401 of valve core 2 4 to leave valve 2, and intake chamber 2 8 and exhaust chamber 2 10 are connected; input air from intake passage 2 16 flows through intake chamber 2 8 and exhaust chamber 2 10 in sequence, and flows out from exhaust passage 2 18, becoming output air; the more regulating air inside regulating chamber 2 12, the more output air flows out from exhaust passage 2 18; at the same time, valve core 1 3 continues to move closer to valve 1, and the compressed air flowing from exhaust chamber 1 9 into exhaust passage 17 gradually decreases; when valve stop 301 of valve core 1 3 contacts valve 1, intake chamber 1 7 and exhaust chamber 1 9 are no longer connected, and the flow rate of compressed air in exhaust passage 17 reaches the minimum value.

[0025] Furthermore, the first air intake 15 and the second air intake 16 are connected, and the input air can flow into the first air intake chamber 7 and the second air intake chamber 8 simultaneously from the first air intake 15, or into the first air intake chamber 7 and the second air intake chamber 8 simultaneously from the second air intake 16.

[0026] Furthermore, the lever 22 is fixedly connected to the permanent magnet 26; the permanent magnet 26 moves together with the lever assembly 2.

[0027] Furthermore, a flexible diaphragm 27 is provided inside the regulating cavity 11; the flexible diaphragm 27 is a thin film structure and is fixed between the IP intake passage 19 and the valve top piston 2301 of the valve top 23. After the regulating air flows into the regulating cavity 11, the flexible diaphragm 27 deforms and pushes the valve top piston 2301 of the valve top 23, causing the valve top 23 to move towards the exhaust cavity 9.

[0028] The second regulating chamber 12 is provided with a flexible diaphragm 28. The flexible diaphragm 28 is a thin film structure and is fixed between the second IP intake passage 20 and the valve top piston 2401 of the valve top 24. After the regulating air flows into the second regulating chamber 12, the flexible diaphragm 28 deforms and pushes the valve top piston 2401 of the valve top 24, causing the valve top 24 to move towards the outlet chamber 10.

[0029] Furthermore, both the first adjustment cavity 11 and the second adjustment cavity 12 are cylindrical structures, and the diameter of the first adjustment cavity 11 is larger than the diameter of the second adjustment cavity 12.

[0030] Furthermore, observing along the central axis of valve core 3, the arrangement order of intake chamber 7, exhaust chamber 9, and regulating chamber 11 is: intake chamber 7, exhaust chamber 9, and regulating chamber 11.

[0031] Observing along the central axis of valve core 24, the arrangement order of intake chamber 28, exhaust chamber 20 and regulating chamber 22 is: intake chamber 28, exhaust chamber 20 and regulating chamber 22.

[0032] Furthermore, the venting chamber 9 is provided with a venting assembly 29; the venting assembly 29 includes a flexible diaphragm 30, an inner fixing member 31, and an outer fixing member 32; the inner fixing member 31 can be divided into a bottle cap and a cylinder, the annular part of the bottle cap is called the edge of the inner fixing member, the planar part of the bottle cap is called the end face of the inner fixing member, and the cylinder is called the venting channel 33; the outer wall of the venting channel 33 has threads;

[0033] There is a round hole on the end face of the internal fixation component, which is called the vent hole of the internal fixation component; the central axis of the vent hole of the internal fixation component coincides with the central axis of the edge of the internal fixation component, and the diameter of the vent hole of the internal fixation component is exactly equal to the inner diameter of the venting channel 33; one end face of the venting channel 33 is welded to the end face of the internal fixation component, and the central axis of the venting channel 33 coincides with the central axis of the vent hole of the internal fixation component.

[0034] The outer fixing member 32 is shaped like a bottle cap. The annular part of the bottle cap is called the edge of the outer fixing member, and the flat part of the bottle cap is called the end face of the outer fixing member. There is a threaded hole on the end face of the outer fixing member, which is called the threaded hole of the outer fixing member. The central axis of the threaded hole of the outer fixing member coincides with the central axis of the edge of the outer fixing member, and the thread of the threaded hole of the outer fixing member matches the thread of the venting channel 33. A through hole is provided on the edge of the outer fixing member, which is called the edge venting hole 34.

[0035] The flexible diaphragm 30 is a circular thin film with a hole in the center, called the flexible diaphragm vent hole; the diameter of the flexible diaphragm vent hole is equal to the outer diameter of the vent channel 33;

[0036] The flexible diaphragm 30, the inner fixing member 31, and the outer fixing member 32 are connected to form a venting assembly according to the following conditions:

[0037] (3-1) The venting channel 33 of the internal fixation member 31 passes through the venting hole of the flexible diaphragm;

[0038] (3-2) The threaded hole of the external fastener is connected to the venting channel 33 by a thread;

[0039] (3-3) In the two surfaces of the flexible diaphragm 30 that are perpendicular to the thickness direction, the end face of the inner fixing member is in contact with one of the surfaces, and the end face of the outer fixing member is in contact with the other surface.

[0040] The venting assembly 29 is fixedly connected to the body 1 via a flexible diaphragm 30, such that the inner fixing member 31 is located between the valve core 3 and the flexible diaphragm 30, and the outer fixing member 32 is located between the flexible diaphragm 30 and the valve top 23.

[0041] When the lever moves the valve top 23 toward the valve core 3, the valve top 23 contacts the outer fixing member 32 and pushes the venting assembly; the flexible diaphragm 30 deforms and the inner fixing member 31 moves toward the valve core 3; when the lever stop 302 of the valve core 3 contacts the venting channel 33, the venting channel 33 is blocked and the compressed air in the outlet chamber 9 can only flow to the outlet passage 17;

[0042] When the valve top 23 moves away from the valve core 3, the lever stop 302 of the valve core 3 disengages from the venting passage (33), and the compressed air in the outlet chamber 9 flows through the venting passage 33 and the edge venting hole 34 in sequence and reaches the outside.

[0043] The beneficial technical effects of this utility model are as follows:

[0044] It can control the pressure and flow rate of two air paths simultaneously, and the two air paths have different adjustment thrusts, thus making it applicable to a wider range of scenarios. Attached Figure Description

[0045] Figure 1 This is an exploded view of an embodiment;

[0046] Figure 2 This is an appearance drawing of an embodiment;

[0047] Figure 3 This is a cross-section of an embodiment. Figure 1 ;

[0048] Figure 4 This is a cross-section of an embodiment. Figure 2 .

[0049] In the diagram, the correspondence between the component names and the attached drawing numbers is as follows: 1. Body; 2. Lever assembly; 3. Valve core 1; 4. Valve core 2; 5. Spring plate 1; 6. Spring plate 2; 7. Intake chamber 1; 8. Intake chamber 2; 9. Exit chamber 1; 10. Exit chamber 2; 11. Adjustment chamber 1; 12. Adjustment chamber 2; 13. Valve pipe 1; 14. Valve pipe 2; 15. Intake passage 1; 16. Intake passage 2; 17. Exit passage 1; 18. Exit passage 2; 19. IP intake passage 1; 20. IP intake passage 2; 21. Lever shaft; 22. Lever; 23. Valve top 1; 24. Valve top II; 25. Lever shaft hole; 26. Permanent magnet; 27. Flexible diaphragm one; 28. Flexible diaphragm two; 29. ​​Bleeding assembly; 30. Flexible diaphragm three; 31. Inner fixing component; 32. Outer fixing component; 33. Bleeding channel; 34. Edge bleed hole; 301. Valve stop of valve core one; 302. Lever stop of valve core one; 401. Valve stop of valve core two; 402. Lever stop of valve core two; 2301. Valve top piston of valve top one; 2302. Valve top column of valve top one; 2401. Valve top piston of valve top two; 2402. Valve top column of valve top two. Detailed Implementation

[0050] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0051] The structure of the embodiment is as follows Figures 1-4 As shown, the design concept is to control two air passages simultaneously using a lever. The embodiment mainly consists of a body 1, a lever assembly 2, a valve core 3, a valve core 2, a spring plate 1, and a spring plate 2 6.

[0052] The main body 1 has six chambers: intake chamber 7, intake chamber 8, exhaust chamber 9, exhaust chamber 10, regulating chamber 11, and regulating chamber 12. Intake chamber 7 and exhaust chamber 9 are connected by valve pipe 13, which is cylindrical. Intake chamber 8 and exhaust chamber 10 are connected by valve pipe 14, which is also cylindrical. The central axis of valve pipe 13 is parallel to the central axis of valve pipe 14, and the distance between them is H. Viewed from a plane perpendicular to valve pipe 13, the projections of intake chamber 7, exhaust chamber 9, and regulating chamber 11 completely obscure the projection of valve pipe 13; similarly, the projections of intake chamber 8, exhaust chamber 10, and regulating chamber 12 completely obscure the projection of valve pipe 14. Observing along the central axis of valve core 3, the arrangement of intake chamber 7, exhaust chamber 9, and regulating chamber 11 is as follows: intake chamber 7, exhaust chamber 9, and regulating chamber 11; observing along the central axis of valve core 4, the arrangement of intake chamber 8, exhaust chamber 10, and regulating chamber 12 is as follows: intake chamber 8, exhaust chamber 10, and regulating chamber 12.

[0053] The machine body 1 has six pipes: Intake 15, Intake 2 16, Outtake 17, Outtake 2 18, IP Intake 19, and IP Intake 2 20. One end of Intake 15 is connected to Intake Chamber 17, and the other end is connected to the outside. Compressed air from the outside flows into Intake Chamber 7 through Intake 15. One end of Intake 2 16 is connected to Intake Chamber 2 8, and the other end is connected to the outside. Compressed air from the outside flows into Intake Chamber 2 8 through Intake 2 16. The compressed air flowing into Intake 15 and Intake 2 16 is referred to as input air. One end of the air outlet 17 is connected to the air outlet chamber 9, and the other end of the air outlet 17 is connected to the outside. Compressed air from the air outlet chamber 9 flows out to the outside through the air outlet 17. One end of the air outlet 18 is connected to the air outlet chamber 10, and the other end of the air outlet 18 is connected to the outside. Compressed air from the air inlet chamber 10 flows out to the outside through the air outlet 18. The compressed air flowing out of the air outlet 17 and the air outlet 18 is called the output air.

[0054] The first air intake 15 and the second air intake 16 are connected. The input air can flow into the first air intake chamber 7 and the second air intake chamber 8 simultaneously from the first air intake 15, or into the first air intake chamber 7 and the second air intake chamber 8 simultaneously from the second air intake 16.

[0055] The valve core 3 is shaped like a dumbbell, with a round rod in the middle and a large and a small spherical crown at each end. The large spherical crown is called the valve stop 301, and the small spherical crown is called the lever stop 302. The valve core 3 is located inside the valve passage 13, and the central axis of the valve core 3 coincides with the central axis of the valve passage 13. The valve core 3 can move linearly along the central axis of the valve passage 13. When the valve core 3 moves to the designated position towards the outlet chamber 9, the valve stop 301 is blocked by the engine block 1. This position is called valve 1. The spring plate 5 presses the valve stop 301 against valve 1. When the valve stop 301 is in valve 1, the intake chamber 7 and the outlet chamber 9 are not connected, and compressed air cannot flow from the intake chamber 7 to the outlet chamber 9.

[0056] Valve core 2 (4) has the same structure as valve core 1 (3), and is located inside valve passage 2 (14), with its central axis coinciding with that of valve passage 2 (14). Valve core 2 (4) can move linearly along the central axis of valve passage 2 (14). When valve core 2 (4) moves to a designated position in the direction of valve passage 2 (14), valve stop 401 is blocked by the engine block 1; this position is called valve 2. Spring plate 2 (6) presses valve stop 401 against valve 2. When valve stop 401 is in valve 2, intake chamber 2 (8) and outlet chamber 2 (10) are not connected, and compressed air cannot flow from intake chamber 2 (8) to outlet chamber 2 (10).

[0057] Lever assembly 2 includes lever shaft 21, lever 22, valve top 1 23, and valve top 2 24. Lever shaft 21 is a round rod structure and is fixed to the engine body 1 according to the following conditions:

[0058] (1-1) The central axis of lever shaft 21 is perpendicular to the central axis of valve passage 13;

[0059] (1-2) The central axis of valve passage 13 and the central axis of valve passage 24 are made into a plane, and the projection of lever axis 21 on this plane is located between the central axis of valve passage 13 and the central axis of valve passage 24.

[0060] The lever 22 is a rectangular plate structure with a through hole, called the lever shaft hole 25. The diameter of the lever shaft hole 25 is larger than the diameter of the lever shaft 21. When the lever shaft 21 passes through the lever shaft hole 25, the lever 22 can move in a circle around the central axis of the lever shaft 21.

[0061] Lever 22 is fixedly connected to permanent magnet 26, which moves together with lever assembly 2. By measuring the displacement of permanent magnet 26, the displacement of lever 22 can be determined, thus allowing for more precise adjustment of the movement of lever 22.

[0062] The cross-sectional view of valve top 23 shows a T-shaped structure. Rotating this T-shaped structure around its axis of symmetry yields valve top 23. Valve top 23 can be divided into a large cylinder and a small cylinder. The large cylinder is called valve top piston 2301, and the small cylinder is called valve top pillar 2302. The central axis of valve top piston 2301 coincides with the central axis of valve top pillar 2302.

[0063] The structure of valve top 24 is the same as that of valve top 13. Valve top 24 and valve top 13 are fixed to lever 22 under the following conditions:

[0064] (2-1) When viewed from a plane perpendicular to the central axis of the lever shaft hole 25, the projection of the lever shaft hole 25 on the plane is located between the projections of valve top 24 and valve top 23.

[0065] (2-2) The central axis of valve top 23 is parallel to the central axis of valve top 24;

[0066] (2-3) The central axis of valve top 23 is perpendicular to the central axis of lever shaft hole 25;

[0067] (2-4) The distance between the central axis of valve top 23 and the central axis of valve top 24 is H.

[0068] Valve top piston 2301 of valve top 23 is located in regulating chamber 11; valve top piston 2401 of valve top 24 is located in regulating chamber 12. One end of IP intake passage 19 is connected to regulating chamber 11, and the other end is connected to the outside. Compressed air from the outside flows into regulating chamber 11 through IP intake passage 19; one end of IP intake passage 20 is connected to regulating chamber 12, and the other end is connected to the outside. Compressed air from the outside flows into regulating chamber 12 through IP intake passage 20. The compressed air flowing into regulating chamber 11 and regulating chamber 12 is called regulating air.

[0069] A flexible diaphragm 27 is installed inside the regulating chamber 11. The flexible diaphragm 27 is a thin-film structure fixed between the IP intake passage 19 and the valve top piston 2301 of the valve top 23. After regulating air flows into the regulating chamber 11, the flexible diaphragm 27 deforms and pushes the valve top piston 2301 of the valve top 23, causing the valve top 23 to move towards the outlet chamber 9. A flexible diaphragm 28 is also installed inside the regulating chamber 12, and its working principle is the same as that of the regulating chamber 11.

[0070] Both regulating chamber 11 and regulating chamber 2 12 are cylindrical structures, with the diameter of regulating chamber 11 being larger than that of regulating chamber 2 12. When the pressures of regulating chamber 11 and regulating chamber 2 12 are equal, the thrust on the valve top piston 2301 is greater due to the larger cross-sectional area of ​​regulating chamber 11. This allows for the selection of regulating chambers with different thrusts based on various practical requirements.

[0071] An air venting assembly 29 is provided inside the air venting chamber 9. The air venting assembly 29 includes a flexible diaphragm 30, an inner fixing member 31, and an outer fixing member 32. The inner fixing member 31 can be divided into a bottle cap and a cylinder. The annular part of the bottle cap is called the edge of the inner fixing member, the planar part of the bottle cap is called the end face of the inner fixing member, and the cylinder is called the air venting channel 33. The outer wall of the air venting channel 33 has threads.

[0072] The internal fixation component has a circular hole on its end face, called the internal fixation component vent hole. The central axis of the internal fixation component vent hole coincides with the central axis of the edge of the internal fixation component, and the diameter of the internal fixation component vent hole is exactly equal to the inner diameter of the venting channel 33. One end face of the venting channel 33 is welded to the end face of the internal fixation component, and the central axis of the venting channel 33 coincides with the central axis of the internal fixation component vent hole.

[0073] The external fastener 32 is shaped like a bottle cap. The annular portion of the bottle cap is called the edge of the external fastener, and the flat portion of the bottle cap is called the end face of the external fastener. The end face of the external fastener has a threaded hole, called the external fastener threaded hole. The central axis of the external fastener threaded hole coincides with the central axis of the external fastener edge, and the thread of the external fastener threaded hole exactly matches the thread of the venting channel 33. A through hole is provided on the edge of the external fastener, called the edge venting hole 34.

[0074] The flexible diaphragm 30 is a circular thin film with a hole in the center, called the flexible diaphragm vent hole. The diameter of the flexible diaphragm vent hole is equal to the outer diameter of the vent channel 33.

[0075] The flexible diaphragm 30, the inner fixing member 31, and the outer fixing member 32 are connected to form a venting assembly according to the following conditions:

[0076] (3-1) The venting channel 33 of the internal fixation member 31 passes through the venting hole of the flexible diaphragm;

[0077] (3-2) The threaded hole of the external fastener is connected to the venting channel 33 by a thread;

[0078] (3-3) In the two surfaces of the flexible diaphragm 30 perpendicular to the thickness direction, the end face of the inner fastener contacts one of the surfaces, and the end face of the outer fastener contacts the other surface.

[0079] The venting assembly 29 is fixedly connected to the body 1 via the flexible diaphragm 30, such that the inner fixing member 31 is located between the valve core 3 and the flexible diaphragm 30, and the outer fixing member 32 is located between the flexible diaphragm 30 and the valve top 23.

[0080] When the lever moves the valve top 23 toward the valve core 3, the valve top 23 contacts the outer fixing member 32 and pushes the venting assembly; the flexible diaphragm 30 deforms and the inner fixing member 31 moves toward the valve core 3; when the lever stop 302 of the valve core 3 contacts the venting channel 33, the venting channel 33 is blocked and the compressed air in the outlet chamber 9 can only flow to the outlet passage 17.

[0081] When the valve top 23 moves away from the valve core 3, the lever stop 302 of the valve core 3 disengages from the venting passage 33, and the compressed air in the outlet chamber 9 flows through the venting passage 33 and the edge venting hole 34 in sequence and reaches the outside.

[0082] The bleed assembly 29 also serves a correction function. After the lever 22 rotates, the central axis of the valve top column 2302 is no longer parallel to the central axis of the valve core 3, which may result in the valve core 3 not being able to be effectively pushed. The inner fixing member 31 of the bleed assembly 29 is designed in the shape of a bottle cap, which perfectly accommodates the lever stop 302 of the valve core 3. The bottle cap shape of the outer fixing member 32 also perfectly accommodates the valve top column 230. At the same time, the flexible diaphragm 30 ensures that the valve top column 2302 can still effectively push the valve core 3 even when it is not aligned with the valve core 3.

[0083] The working principle of the embodiment is as follows:

[0084] When regulating air flows into regulating chamber 11 from intake port 19, the valve top piston 2301 of valve top 23 is pushed by the regulating air, causing valve top 23 to move towards outlet chamber 9. Simultaneously, valve top 23 drives lever 22 to rotate, causing valve top 24 to move away from outlet chamber 12. Under the push of spring plate 26, lever stop 402 of valve core 24 remains in contact with valve top column 2402 of valve top 24, causing valve core 24 to move closer to valve 2, reducing the output air flowing from outlet chamber 10 into outlet port 18. As the amount of regulating air flowing into regulating chamber 11 gradually increases, valve top column 2301 of valve top 23 and lever stop 3 of valve core 24... 02 makes contact and pushes valve core 3, causing valve stop 301 of valve core 3 to leave valve 1, and intake chamber 7 and exhaust chamber 9 to connect; input air from intake passage 15 flows through intake chamber 7 and exhaust chamber 9 in sequence, and finally flows out from exhaust passage 17 to become output air; the more regulating air inside regulating chamber 11, the more output air flows out from exhaust passage 17; at the same time, valve core 4 continues to move closer to valve 2, and the compressed air flowing from exhaust chamber 2 10 into exhaust passage 2 18 gradually decreases; when valve stop 401 of valve core 4 contacts valve 2, intake chamber 2 8 and exhaust chamber 2 10 are no longer connected, and the flow rate of compressed air in exhaust passage 2 18 reaches the minimum value;

[0085] When regulating air flows into regulating chamber 12 from intake passage 20, the valve top piston 2401 of valve top 24 is pushed by the regulating air, and valve top 24 moves towards outlet chamber 10. Simultaneously, valve top 24 drives lever 22 to rotate, causing valve top 23 to move away from outlet chamber 9. Under the push of spring plate 5, lever stop 302 of valve core 3 remains in contact with valve top column 2301 of valve top 23, and valve core 3 moves closer to valve 1, reducing the amount of compressed air flowing from outlet chamber 9 into outlet passage 17. Gradually increasing the amount of regulating air flowing into regulating chamber 12, valve top column 2402 of valve top 24 and lever stop 2401 of valve core 24... 2. Contact occurs and pushes valve core 2 4, causing valve stop 401 of valve core 2 4 to leave valve 2, and intake chamber 2 8 and exhaust chamber 2 10 are connected; input air from intake passage 2 16 flows through intake chamber 2 8 and exhaust chamber 2 10 in sequence, and flows out from exhaust passage 2 18, becoming output air; the more regulating air inside regulating chamber 2 12, the more output air flows out from exhaust passage 2 18; at the same time, valve core 1 3 continues to move closer to valve 1, and the compressed air flowing from exhaust chamber 1 9 into exhaust passage 17 gradually decreases; when valve stop 301 of valve core 1 3 contacts valve 1, intake chamber 1 7 and exhaust chamber 1 9 are no longer connected, and the flow rate of compressed air in exhaust passage 17 reaches the minimum value.

[0086] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, and for those of ordinary skill in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details.

Claims

1. A double-acting lever-type pressure-flow amplifier, characterized in that: Includes body (1), lever assembly (2), valve core one (3), valve core two (4), spring plate one (5), and spring plate two (6); The body (1) is provided with 6 chambers: intake chamber 1 (7), intake chamber 2 (8), exhaust chamber 1 (9), exhaust chamber 2 (10), regulating chamber 1 (11), and regulating chamber 2 (12); intake chamber 1 (7) and exhaust chamber 1 (9) are connected by valve pipe 1 (13); the central axis of valve pipe 1 (13) is a straight line; intake chamber 2 (8) and exhaust chamber 2 (10) are connected by valve pipe 2 (14); the valve pipe 2 (14) The central axis is a straight line; the central axis of valve passage one (13) is parallel to the central axis of valve passage two (14), and the distance between them is H; when viewed from a plane perpendicular to valve passage one (13), the projections of intake chamber one (7), exhaust chamber one (9), and adjustment chamber one (11) can completely block the projection of valve passage one (13), and the projections of intake chamber two (8), exhaust chamber two (10), and adjustment chamber two (12) can completely block the projection of valve passage two (14); The body (1) is provided with 6 pipes: intake pipe 1 (15), intake pipe 2 (16), exhaust pipe 1 (17), exhaust pipe 2 (18), IP intake pipe 1 (19), and IP intake pipe 2 (20); one end of intake pipe 1 (15) is connected to intake chamber 1 (7), and the other end of intake pipe 1 (15) is connected to the outside, and compressed air from the outside flows into intake chamber 1 (7) from intake pipe 1 (15); one end of intake pipe 2 (16) is connected to intake chamber 2 (8), and the other end of intake pipe 2 (16) is connected to the outside, and compressed air from the outside flows into intake chamber 2 (8) from intake pipe 2 (16); the compressed air flowing into intake pipe 1 (15) and intake pipe 2 (16) is called input air; one end of exhaust pipe 1 (17) is connected to exhaust chamber 1 (9), and the other end of exhaust pipe 1 (17) is connected to the outside, and the exhaust air flows into intake chamber 2 (8). Compressed air from chamber one (9) flows out to the outside through outlet one (17); one end of outlet two (18) is connected to outlet chamber two (10), and the other end of outlet two (18) is connected to the outside. Compressed air from inlet chamber two (8) flows out to the outside through outlet two (18). The compressed air flowing out through outlet one (17) and outlet two (18) is called output air. One end of IP inlet one (19) is connected to regulating chamber one (11), and the other end is connected to the outside. Compressed air flows into regulating chamber one (11) through IP inlet one (19). One end of IP inlet two (20) is connected to regulating chamber two (12), and the other end is connected to the outside. Compressed air flows into regulating chamber two (12) through IP inlet two (20). The compressed air flowing into IP inlet one (19) and IP inlet two (20) is called regulating air. The valve core (3) is shaped like a dumbbell with a round rod in the middle and a large spherical crown and a small spherical crown at each end. The large spherical crown is called the valve stop and the small spherical crown is called the lever stop. The valve core (3) is located inside the valve pipe (13) and the central axis of the valve core (3) coincides with the central axis of the valve pipe (13). The valve core (3) can move linearly along the central axis of the valve pipe (13). After the valve core (3) moves to the designated position in the direction of the outlet chamber (9), the valve stop will be blocked by the body (1), and this position is called valve one. The spring plate (5) presses the valve stop tightly against valve one. When the valve stop is at valve one, the inlet chamber (7) and the outlet chamber (9) are not connected, and compressed air cannot flow from the inlet chamber (7) to the outlet chamber (9). The structure of valve core 2 (4) is the same as that of valve core 1 (3), and it is located inside valve pipe 2 (14). The central axis of valve core 2 (4) coincides with the central axis of valve pipe 2 (14). Valve core 2 (4) can move linearly along the central axis of valve pipe 2 (14). After valve core 2 (4) moves to the designated position in the direction of valve pipe 2 (14), the valve stop will be blocked by the body (1). This position is called valve 2. The spring plate 2 (6) presses the valve stop tightly on valve 2. When the valve stop is on valve 2, the intake chamber 2 (8) and the exhaust chamber 2 (10) are not connected, and compressed air cannot flow from intake chamber 2 (8) to exhaust chamber 2 (10). The lever assembly (2) includes a lever shaft (21), a lever (22), a valve top (23), and a valve top (24); the lever shaft (21) is a round rod structure and is fixed to the body (1) under the following conditions: (1-1) The central axis of lever shaft (21) is perpendicular to the central axis of valve passage (13); (1-2) Make a plane between the central axis of valve passage one (13) and the central axis of valve passage two (14), and the projection of lever axis (21) on this plane is located between the central axis of valve passage one (13) and the central axis of valve passage two (14); The lever (22) is a rectangular plate structure with a through hole, called the lever shaft hole (25); the diameter of the lever shaft hole (25) is larger than the diameter of the lever shaft (21); the lever shaft (21) passes through the lever shaft hole (25), and the lever (22) can move in a circle around the central axis of the lever shaft (21); The cross-sectional view of the valve top (23) is a T-shaped structure. The valve top (23) can be obtained by rotating around the axis of symmetry of the T-shaped structure. The valve top (23) can be divided into a large cylinder and a small cylinder. The large cylinder is called the valve top piston and the small cylinder is called the valve top pillar. The central axis of the valve top piston coincides with the central axis of the valve top pillar. The structure of valve top 2 (24) is the same as that of valve top 1 (23); valve top 2 (24) and valve top 1 (23) are fixed on lever (22) under the following conditions: (2-1) When viewed from a plane perpendicular to the central axis of the lever shaft hole (25), the projection of the lever shaft hole (25) on this plane is located between the projections of valve top two (24) and valve top one (23); (2-2) The central axis of valve top one (23) is parallel to the central axis of valve top two (24); (2-3) The central axis of valve top (23) is perpendicular to the central axis of lever shaft hole (25); (2-4) The distance between the central axis of valve top one (23) and the central axis of valve top two (24) is H; The valve top piston of valve top one (23) is located in regulating chamber one (11); the valve top piston of valve top two (24) is located in regulating chamber two (12); one end of IP intake passage one (19) is connected to regulating chamber one (11), and the other end is connected to the outside. Compressed air from the outside flows into regulating chamber one (11) through IP intake passage one (19); one end of IP intake passage two (20) is connected to regulating chamber two (12), and the other end is connected to the outside. Compressed air from the outside flows into regulating chamber two (12) through IP intake passage two (20); the compressed air flowing into regulating chamber one (11) and regulating chamber two (12) is called regulating air; When the regulating air flows into the regulating chamber 1 (11) from the intake passage 1 (19), the valve top piston of valve top 1 (23) is pushed by the regulating air, causing valve top 1 (23) to move towards the outlet chamber 1 (9); at the same time, valve top 1 (23) drives lever (22) to rotate, causing valve top 2 (24) to move away from outlet chamber 2 (10); under the push of spring plate 2 (6), the lever stop of valve core 2 (4) keeps in contact with the valve top column of valve top 2 (24), valve core 2 (4) moves closer to valve 2, and the output air flowing from outlet chamber 2 (10) into outlet passage 2 (18) decreases; gradually increasing the regulating air flowing into regulating chamber 1 (11), the valve top column of valve top 1 (23) makes contact with the lever stop of valve core 1 (3). The valve core 1 (3) is touched and pushed, causing the valve stop of the valve core 1 (3) to leave the valve 1, and the intake chamber 1 (7) and the exhaust chamber 1 (9) are connected; the input air from the intake passage 1 (15) flows through the intake chamber 1 (7) and the exhaust chamber 1 (9) in sequence, and finally flows out from the exhaust passage 1 (17) to become the output air; the more regulating air inside the regulating chamber 1 (11), the more output air flows out from the exhaust passage 1 (17); at the same time, the valve core 2 (4) continues to move closer to the valve 2, and the compressed air flowing from the exhaust chamber 2 (10) into the exhaust passage 2 (18) gradually decreases; when the valve stop of the valve core 2 (4) contacts the valve 2, the intake chamber 2 (8) and the exhaust chamber 2 (10) are no longer connected, and the flow rate of the compressed air in the exhaust passage 2 (18) reaches the minimum value; When the regulating air flows into the regulating chamber 2 (12) from the intake passage 2 (20), the valve top piston of valve top 2 (24) is pushed by the regulating air, and valve top 2 (24) moves towards the outlet chamber 2 (10); at the same time, valve top 2 (24) drives lever (22) to rotate, causing valve top 1 (23) to move away from outlet chamber 1 (9); under the push of spring plate 1 (5), the lever stop of valve core 1 (3) keeps in contact with the valve top column of valve top 1 (23), valve core 1 (3) moves closer to valve 1, and the compressed air flowing into outlet passage 1 (17) from outlet chamber 1 (9) decreases; gradually increasing the regulating air flowing into regulating chamber 2 (12), the valve top column of valve top 2 (24) comes into contact with the lever stop of valve core 2 (4). And push the valve core 2 (4) so ​​that the valve stop of the valve core 2 (4) leaves the valve 2, and the intake chamber 2 (8) and the exhaust chamber 2 (10) are connected; the input air from the intake passage 2 (16) flows through the intake chamber 2 (8) and the exhaust chamber 2 (10) in sequence, and flows out from the exhaust passage 2 (18) to become the output air; the more regulating air inside the regulating chamber 2 (12), the more output air flows out from the exhaust passage 2 (18); at the same time, the valve core 1 (3) continues to move closer to the valve 1, and the compressed air flowing from the exhaust chamber 1 (9) into the exhaust passage 1 (17) gradually decreases; when the valve stop of the valve core 1 (3) contacts the valve 1, the intake chamber 1 (7) and the exhaust chamber 1 (9) are no longer connected, and the flow rate of the compressed air in the exhaust passage 1 (17) reaches the minimum value.

2. The double-acting lever-type pressure-flow amplifier according to claim 1, characterized in that: The lever (22) is fixedly connected to the permanent magnet (26); the permanent magnet (26) moves together with the lever assembly (2).

3. The double-acting lever-type pressure-flow amplifier according to claim 1, characterized in that: The regulating chamber 1 (11) is provided with a flexible diaphragm 1 (27); the flexible diaphragm 1 (27) is a thin film structure, fixed between the IP intake passage 1 (19) and the valve top piston of valve top 1 (23). After the regulating air flows into the regulating chamber 1 (11), the flexible diaphragm 1 (27) deforms and pushes the valve top piston of valve top 1 (23), so that valve top 1 (23) moves towards the exhaust chamber 1 (9); The second regulating chamber (12) is provided with a flexible diaphragm (28); the flexible diaphragm (28) is a thin film structure and is fixed between the valve top piston of the second IP intake passage (20) and the valve top (24). After the regulating air flows into the second regulating chamber (12), the flexible diaphragm (28) deforms and pushes the valve top piston of the valve top (24), so that the valve top (24) moves towards the outlet chamber (10).

4. A double-acting lever-type pressure-flow amplifier according to claim 1, characterized in that: Both the first adjustment cavity (11) and the second adjustment cavity (12) are cylindrical structures, and the diameter of the first adjustment cavity (11) is larger than the diameter of the second adjustment cavity (12).

5. A double-acting lever-type pressure-flow amplifier according to claim 1, characterized in that: Observing along the central axis of valve core 1 (3), the arrangement order of intake chamber 1 (7), exhaust chamber 1 (9) and regulating chamber 1 (11) is: intake chamber 1 (7), exhaust chamber 1 (9) and regulating chamber 1 (11). Observing along the central axis of valve core 2 (4), the arrangement order of intake chamber 2 (8), exhaust chamber 2 (10) and regulating chamber 2 (12) is: intake chamber 2 (8), exhaust chamber 2 (10) and regulating chamber 2 (12).

6. A double-acting lever-type pressure-flow amplifier according to claim 1, characterized in that: The venting chamber (9) is provided with a venting assembly (29); the venting assembly (29) includes a flexible diaphragm (30), an inner fixing member (31) and an outer fixing member (32); the inner fixing member (31) can be divided into a bottle cap and a cylinder, the annular part of the bottle cap is called the edge of the inner fixing member, the flat part of the bottle cap is called the end face of the inner fixing member, and the cylinder is called the venting channel (33); the outer wall of the venting channel (33) has threads; There is a round hole on the end face of the internal fixation component, which is called the vent hole of the internal fixation component; the central axis of the vent hole of the internal fixation component coincides with the central axis of the edge of the internal fixation component, and the diameter of the vent hole of the internal fixation component is exactly equal to the inner diameter of the venting channel (33); one end face of the venting channel (33) is welded to the end face of the internal fixation component, and the central axis of the venting channel (33) coincides with the central axis of the vent hole of the internal fixation component. The outer fixing member (32) is shaped like a bottle cap. The annular part of the bottle cap is called the edge of the outer fixing member, and the flat part of the bottle cap is called the end face of the outer fixing member. There is a threaded hole on the end face of the outer fixing member, which is called the threaded hole of the outer fixing member. The central axis of the threaded hole of the outer fixing member coincides with the central axis of the edge of the outer fixing member, and the thread of the threaded hole of the outer fixing member matches the thread of the venting channel (33). A through hole is provided on the edge of the outer fixing member, which is called the edge venting hole (34). The flexible diaphragm three (30) is a circular thin film with a hole in the center, called the flexible diaphragm vent hole; the diameter of the flexible diaphragm vent hole is equal to the outer diameter of the vent channel (33); The flexible diaphragm (30), the inner fixing member (31), and the outer fixing member (32) are connected to form a venting assembly according to the following conditions: (3-1) The venting channel (33) of the internal fixation member (31) passes through the venting hole of the flexible diaphragm; (3-2) The threaded hole of the external fastener and the venting channel (33) are connected by threads; (3-3) In the two surfaces of the flexible diaphragm three (30) perpendicular to the thickness direction, the end face of the inner fastener contacts one of the surfaces, and the end face of the outer fastener contacts the other surface; The venting assembly (29) is fixedly connected to the body (1) via a flexible diaphragm three (30), such that the inner fixing member (31) is located between the valve core one (3) and the flexible diaphragm three (30), and the outer fixing member (32) is located between the flexible diaphragm three (30) and the valve top one (23); When the lever moves the valve top (23) toward the valve core (3), the valve top (23) contacts the outer fixing part (32) and pushes the venting assembly; the flexible diaphragm (30) deforms and the inner fixing part (31) moves toward the valve core (3); when the lever stop of the valve core (3) contacts the venting channel (33), the venting channel (33) is blocked and the compressed air in the outlet chamber (9) can only flow to the outlet passage (17). When the valve top (23) moves away from the valve core (3), the lever stop of the valve core (3) disengages from the venting channel (33), and the compressed air in the outlet chamber (9) flows through the venting channel (33) and the edge venting hole (34) in sequence and reaches the outside.

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