Pneumatic pressure increasing valve

Abstract

The pneumatic pressure increasing valve comprises a first machine shell and a second machine shell, a bottom plate is fixed to the lower portion of the first machine shell, screw holes are formed in the bottom plate, and the second machine shell is fixedly installed at the left end of the first machine shell through screws; a first gear is fixed to the lower surface of the second bevel gear, a rectangular shell is installed at the front end of the cylinder, an adjusting mechanism is installed in the rectangular shell, the left side face of a folding plate is fixed to the left wall in the rectangular shell, a movable plate is fixed to the right side face of the folding plate, and an air outlet pipe is installed at the front end of the first machine shell. The air inlet pipe and the air outlet pipe are both connected with an external pipeline in a threaded connection mode. According to the pneumatic pressure increasing valve, dust is conveniently collected during dust removal, the situation that much dust is diffused in the filtering structure to affect the filtering effect is avoided, the dust removal structure is moved, and dust removal is conveniently stopped when dust removal is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of booster valves, in particular to a pneumatic booster valve. Background Art

[0002] Pneumatic booster valves are mainly used for air tightness testing, pressure testing, instrument testing, and automobile testing. Pneumatic booster valves are a type of equipment that boosts gas pressure. They use the reciprocating motion of a piston to compress the gas to achieve the effect of gas boosting. Pneumatic booster valves on the market have good sealing properties, can quickly and smoothly complete pneumatic boosting, and prevent the supercharger from surging.

[0003] For example, a Chinese invention patent with application publication number CN118361371A discloses a reciprocating boosting device, including a frame, a boosting box, a driving assembly and a circulation assembly. The top of the frame is fixedly connected to the boosting box, and the inside of the boosting box is slidably connected to a piston. The present invention drives the piston to slide back and forth inside the boosting box through the driving assembly in cooperation with the cross bar, which can change the relationship between the negative pressure inside the boosting box and the compression space, and then control the opening and closing of the one-way valves inside the No. 1 pipe, the No. 2 pipe, the No. 3 pipe and the No. 4 pipe, so as to realize alternating air intake and exhaust, so as to realize the effect of reciprocating boosting, and does not require electromagnetic control, which can greatly reduce the cost of equipment use. At the same time, the circulation assembly provided cooperates with the refrigerator and the cooling diode to control the temperature of the piston to ensure the stability and life of the equipment. The air intake assembly provided can filter the gas to ensure the cleanliness of the boosted gas, thereby improving the use effect of the equipment.

[0004] However, the existing pneumatic booster valve still has the following problems:

[0005] 1. Although a dust cleaning structure is provided, when cleaning dust, due to air flow, dust diffuses in the filter structure. When dust accumulates more, more dust diffuses in the filter structure, which still affects the filtering effect.

[0006] 2. Although the linkage structure can reduce the use of power equipment, it is inconvenient to stop cleaning when cleaning is not needed. Therefore, we propose a pneumatic booster valve to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a pneumatic booster valve to solve the problem that although the existing pneumatic booster valve proposed in the above background technology is provided with a dust cleaning structure, when cleaning the dust, due to the flow of air, the dust diffuses in the filter structure. When the dust accumulates more, more dust diffuses in the filter structure, which still affects the filtering effect. Although the use of power equipment can be reduced through the linkage structure, it is inconvenient to stop cleaning when cleaning is not needed.

[0008] To achieve the above object, the present invention provides the following technical solution: a pneumatic booster valve, comprising a first housing and a second housing, characterized in that a bottom plate is fixed below the first housing, and a screw hole is opened inside the bottom plate;

[0009] The second housing is fixedly mounted on the left end of the first housing by screws, a mounting shell is fixed inside the second housing, and a housing cover is fixed to the rear end of the second housing by screws, an air intake pipe is fixed on the housing cover, a motor is fixed inside the mounting shell, a first bevel gear is fixed to the output end of the motor, and a second bevel gear is meshedly connected to the bottom end of the first bevel gear, a support plate is fixed to the bottom end of the mounting shell, a filter plate is fixed to the right end of the mounting shell, a cleaning plate is arranged on the left side of the filter plate, a rear side surface of the filter plate is fitted with a front side surface of the housing cover, and a telescopic tube is installed at the right end of the mounting shell;

[0010] A first gear is fixed to the lower surface of the second bevel gear, a round seat is provided on the right side of the first gear, the top of the round seat is rotatably connected to the second gear, a screw is fixed inside the second gear, the outer end of the screw is threadedly connected to the lifting plate, a connecting rod is fixed to the outer side of the round seat, the right end of the connecting rod is fixedly connected to the cover plate, an electric telescopic rod fixed in the mounting shell is provided on the outer side of the connecting rod, the output end of the electric telescopic rod is fixed to the cover plate, a collecting box is provided below the cover plate, and the collecting box fits the left side of the filter plate;

[0011] A rotating disk is fixed to the front side of the first bevel gear, and a support rod is rotatably connected to the front end of the rotating disk, a moving rod is rotatably connected to the right end of the support rod, and a push plate is fixed to the right side of the moving rod;

[0012] A cylinder is installed inside the first housing, a rectangular shell is installed at the front end of the cylinder, an adjustment mechanism is installed inside the rectangular shell, a left side of a folding plate is fixed to the inner left wall of the rectangular shell, and a moving plate is fixed to the right side of the folding plate;

[0013] An air outlet pipe is installed at the front end of the first housing, and the air inlet pipe and the air outlet pipe are both connected to external pipelines by threaded connection.

[0014] By adopting the above technical solution, the dust filtering structure can be cleaned through the linkage structure while compressing the air, reducing the use of power equipment and facilitating the disassembly and assembly of the cleaning structure. By moving the movable plate, the folding plate can be expanded or compressed to adjust the size of the valve body outlet, thereby adjusting the valve body outlet pressure.

[0015] As a preferred technical solution of the present invention, the lifting plate and the support plate form a lifting structure through a screw rod, and the inner side surface of the support plate is in contact with the outer side surface of the lifting plate.

[0016] By adopting the above technical solution, the lifting and lowering of the lifting plate is limited by the support plate.

[0017] As a preferred technical solution of the present invention, the right side surface of the cleaning plate is in contact with the left side surface of the filter plate.

[0018] By adopting the above technical solution, the filter surface of the filter plate is cleaned by rotating the cleaning plate, thereby preventing the right side of the cleaning plate and the filter plate from being blocked.

[0019] As a preferred technical solution of the present invention, the mounting shell is connected to the cylinder via a telescopic tube.

[0020] By adopting the above technical solution, the gas flows from the installation shell to the telescopic tube, and then flows from the telescopic tube into the interior of the cylinder.

[0021] As a preferred technical solution of the present invention, the first bevel gear, the rotating disk, the support rod, the moving rod and the push plate constitute a linkage mechanism, and the moving rod is slidably installed on the right end of the second housing.

[0022] By adopting the above technical solution, the moving track of the moving rod is limited by the second housing, thereby preventing the moving rod from swinging and rotating.

[0023] As a preferred technical solution of the present invention, the adjustment mechanism includes a screw rod, a limiting rod, a round rod and an operating rod. The screw rod is rotatably installed inside the rectangular shell. A limiting rod is arranged behind the screw rod. The limiting rod is fixed inside the rectangular shell. A round rod is fixed on the right side of the screw rod. The operating rod is snap-fitted and installed on the right side of the round rod.

[0024] By adopting the above technical solution, the shape of the folding plate is adjusted by adjusting the screw rod, the limiting rod, the round rod and the operating rod inside the mechanism.

[0025] As a preferred technical solution of the present invention, the operation lever is connected to the first housing by a snap-fit ​​connection, and rectangular holes are provided at equal angles on the right end of the first housing.

[0026] By adopting the above technical solution, the operating rod is limited by the rectangular hole, so that the operating rod and the screw rod are prevented from rotating arbitrarily.

[0027] As a preferred technical solution of the present invention, the movable plate and the screw rod are connected in a threaded manner, and a limiting rod passes through the rear end of the movable plate.

[0028] By adopting the above technical solution, the moving track of the moving plate is limited by the limiting rod.

[0029] Compared with the prior art, the invention has the following beneficial effects: the pneumatic booster valve can conveniently collect dust during dust cleaning, and avoid a large amount of dust from spreading in the filter structure to affect the filtering effect; the mobile dust cleaning structure can conveniently stop dust cleaning when dust cleaning is not needed;

[0030] 1. When dust cleaning is required, the cover plate is moved to the left under the action of the electric telescopic rod, and the cover plate leaves the collection box, so that the collection box is opened, and the lifting plate slides to the left inside the cleaning plate, and the connecting rod, the round seat and the second gear move to the left, so that the second gear is meshed and connected with the first gear, and the first gear drives the second gear to rotate, so that the screw rotates, so that the lifting plate threadedly connected with the screw rises and falls, and the lifting plate and the cleaning plate rise and fall, and the filter plate is cleaned, and the dust on the filter plate is cleaned to the collection box, which is convenient for collecting dust;

[0031] 2. When dust cleaning is not needed, the cover is moved to the right under the action of the electric telescopic rod, the cover is covered on the collection box, the first gear is separated from the second gear, and the dust cleaning work is stopped;

[0032] 3. An adjusting mechanism, a movable plate and a folding plate are provided. The screw rod in the adjusting mechanism is rotated to move the movable plate left and right, thereby expanding or compressing the folding plate, adjusting the size of the valve body outlet, and thus adjusting the valve body outlet pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the front view cutaway structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention from top view;

[0035] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0036] Figure 4 This is a schematic diagram of the overall structure of the folding plate and the movable plate connected in the present invention;

[0037] Figure 5 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 6 It is a schematic diagram of the side cutaway structure of the present invention;

[0039] Figure 7 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0040] Figure 8 This is a schematic diagram of the overall structure of the connection between the operating rod and the round rod of the present invention;

[0041] Fig. 9 This is a schematic diagram of the overall structure of the installation shell of the present invention;

[0042] Fig.10 This is a schematic diagram of the overall structure of the connection between the lifting plate and the supporting plate of the present invention;

[0043] Fig.11 This is a schematic diagram of the cross-section structure of the installation shell of the present invention.

[0044] In the figure: 1, first housing; 2, bottom plate; 3, second housing; 4, mounting housing; 5, housing cover; 6, air inlet pipe; 7, motor; 8, second bevel gear; 9, first bevel gear; 10, support plate; 11, cleaning plate; 12, filter plate; 13, telescopic tube; 14, turntable; 15, support rod; 16, moving rod; 17, push plate; 18, cylinder; 19, rectangular housing; 20, screw rod; 21, limiting rod; 22, moving plate; 23, folding plate; 24, round rod; 25, operating rod; 26, rectangular hole; 27, air outlet pipe; 28, first gear; 29, round seat; 30, second gear; 31, screw rod; 32, lifting plate; 33, connecting rod; 34, electric telescopic rod; 35, collecting box; 36, cover plate. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figure 1-11 The present invention provides a technical solution: a pneumatic booster valve, comprising a first housing 1, a bottom plate 2, a second housing 3, a mounting housing 4, a housing cover 5, an air inlet pipe 6, a motor 7, a second bevel gear 8, a first bevel gear 9, a support plate 10, a cleaning plate 11, a filter plate 12, a telescopic tube 13, a turntable 14, a support rod 15, a moving rod 16, a push plate 17, a cylinder 18, a rectangular housing 19, a screw rod 20, a limiting rod 21, a moving plate 22, a folding plate 23, a round rod 24, an operating rod 25, a rectangular hole 26, an air outlet pipe 27, a first gear 28, a round seat 29, a second gear 30, a screw rod 31, a lifting plate 32, a connecting rod 33, an electric telescopic rod 34, a collecting box 35 and a cover plate 36, wherein a bottom plate 2 is fixed below the first housing 1, and a screw hole is provided inside the bottom plate 2;

[0047] The second housing 3 is fixedly mounted on the left end of the first housing 1 by screws, a mounting housing 4 is fixed inside the second housing 3, and a housing cover 5 is fixed to the rear end of the second housing 3 by screws, an air inlet pipe 6 is fixed on the housing cover 5, a motor 7 is fixed inside the mounting housing 4, a first bevel gear 9 is fixed to the output end of the motor 7, and a second bevel gear 8 is meshedly connected to the bottom end of the first bevel gear 9, a support plate 10 is fixed to the bottom end of the mounting housing 4, a filter plate 12 is fixed to the right end of the mounting housing 4, a cleaning plate 11 is provided on the left side of the filter plate 12, the rear side of the filter plate 12 is in contact with the front side of the housing cover 5, and a telescopic tube 13 is installed at the right end of the mounting housing 4;

[0048] A first gear 28 is fixed to the lower surface of the second bevel gear 8, a round seat 29 is provided on the right side of the first gear 28, a second gear 30 is rotatably connected to the top of the round seat 29, a screw 31 is fixed inside the second gear 30, a lifting plate 32 is threadedly connected to the outer end of the screw 31, a connecting rod 33 is fixed to the outer side of the round seat 29, the right end of the connecting rod 33 is fixedly connected to the cover plate 36, an electric telescopic rod 34 fixed to the mounting shell 4 is provided on the outer side of the connecting rod 33, a cover plate 36 is fixed to the output end of the electric telescopic rod 34, a collecting box 35 is provided below the cover plate 36, and the collecting box 35 is attached to the left side of the filter plate 12;

[0049] A rotating disk 14 is fixed to the front side of the first bevel gear 9, and a support rod 15 is rotatably connected to the front end of the rotating disk 14, a moving rod 16 is rotatably connected to the right end of the support rod 15, and a push plate 17 is fixed to the right side of the moving rod 16;

[0050] A cylinder 18 is installed inside the first housing 1, a rectangular shell 19 is installed at the front end of the cylinder 18, an adjustment mechanism is installed inside the rectangular shell 19, a left side of a folding plate 23 is fixed to the left wall inside the rectangular shell 19, and a moving plate 22 is fixed to the right side of the folding plate 23;

[0051] An air outlet pipe 27 is installed at the front end of the first housing 1, and the air inlet pipe 6 and the air outlet pipe 27 are connected to external pipelines by threaded connection.

[0052] like Figure 2 and Figure 7 As shown, the right side surface of the cleaning plate 11 is fitted with the left side surface of the filter plate 12. The filter surface of the filter plate 12 is cleaned by rotating the cleaning plate 11 to avoid the right side surface of the cleaning plate 11 and the filter plate 12 being blocked.

[0053] like Figure 1 As shown, the mounting shell 4 is connected to the cylinder 18 through the telescopic tube 13 , and the gas flows from the mounting shell 4 to the telescopic tube 13 , and then flows from the telescopic tube 13 into the interior of the cylinder 18 .

[0054] like Figure 1 and Figure 2As shown, the first bevel gear 9, the turntable 14, the support rod 15, the moving rod 16 and the push plate 17 constitute a linkage mechanism, and the moving rod 16 is slidably installed on the right end of the second housing 3. The moving trajectory of the moving rod 16 is limited by the second housing 3 to prevent the moving rod 16 from swinging and rotating.

[0055] like Figure 2 and Figure 3 As shown, the adjustment mechanism includes a screw rod 20, a limiting rod 21, a round rod 24 and an operating rod 25. The screw rod 20 is rotatably installed inside the rectangular shell 19. A limiting rod 21 is arranged behind the screw rod 20. The limiting rod 21 is fixed inside the rectangular shell 19. A round rod 24 is fixed on the right side of the screw rod 20. The operating rod 25 is installed on the right side of the round rod 24. The shape of the folding plate 23 is adjusted by the screw rod 20, the limiting rod 21, the round rod 24 and the operating rod 25 inside the adjustment mechanism.

[0056] like Figure 1 As shown, the operating rod 25 is connected to the first housing 1 by a snap-fit ​​connection, and a rectangular hole 26 is provided at an equal angle at the right end of the first housing 1 to limit the operating rod 25 and prevent the operating rod 25 and the screw rod 20 from rotating arbitrarily.

[0057] like Figure 2 , Figure 3 and Figure 4 As shown, the connection between the moving plate 22 and the screw rod 20 is a threaded connection, and a limiting rod 21 is passed through the rear end of the moving plate 22, and the limiting rod 21 is used to limit the moving trajectory of the moving plate 22;

[0058] When using the pneumatic booster valve, Figure 2 As shown, screw holes are provided inside the bottom plate 2, and the bottom plate 2 can be mounted on the mounting frame of the device through screws and screw holes. An air inlet pipe 6 is mounted on the shell cover 5, and an air outlet pipe 27 is mounted on the front end of the first housing 1. The insides of the air inlet pipe 6 and the air outlet pipe 27 are both provided with threads, and the external pipes are connected to the air inlet pipe 6 and the air outlet pipe 27 by means of threaded connection;

[0059] The outside air enters the interior of the mounting shell 4 from the air inlet pipe 6, and after being filtered by the filter plate 12 inside the mounting shell 4, the gas flows from the telescopic tube 13 to the cylinder 18 because the mounting shell 4 is connected to the cylinder 18 through the telescopic tube 13;

[0060] When compressing air, the motor 7 is turned on, and the motor 7 drives the first bevel gear 9 to rotate, and the turntable 14 connected to the first bevel gear 9 rotates inside the second housing 3, so that the support rod 15 connected to the turntable 14 swings, and the support rod 15 is connected to the moving rod 16. The swing of the support rod 15 drives the moving rod 16 and the push plate 17 to move left and right. The moving rod 16 is slidably installed on the second housing 3, and the moving tracks of the moving rod 16 and the push plate 17 are defined by the second housing 3. The left and right movement of the moving rod 16 and the push plate 17 compresses the air, and the air entering from the air inlet pipe 6 is compressed, and the compressed air flows out from the air outlet pipe 27.

[0061] When dust cleaning is required, the cover plate 36 is moved to the left under the action of the electric telescopic rod 34 to expose the collection box 35, and the lifting plate 32 moves to the left inside the cleaning plate 11, and the second gear 30 is meshed and connected with the first gear 28. When the motor 7 drives the first bevel gear 9 to rotate, the second bevel gear 8, the first gear 28, the second gear 30 and the screw 31 rotate, so that the lifting plate 32 is lifted and lowered, thereby driving the cleaning plate 11 to lift and lower, and the filter plate 12 is cleaned by the cleaning plate 11, and the dust on the filter plate 12 is cleaned to the inside of the collection box 35;

[0062] When dust cleaning is not needed, the cover plate 36 is moved to the right under the action of the electric telescopic rod 34, the cover plate 36 covers the collection box 35, the lifting plate 32 moves to the right inside the cleaning plate 11, the second gear 30 is separated from the first gear 28, and the dust cleaning work is stopped. The collection box 35 is sealed by the cover plate 36, so that too much dust can be prevented from spreading near the filtering surface of the filter plate 12 and affecting the filtering effect of the filter plate 12;

[0063] like Figure 2 , Figure 3 and Figure 4 As shown, an adjustment mechanism is installed inside the rectangular shell 19, and a moving plate 22 and a folding plate 23 are installed inside the rectangular shell 19. When the outlet pressure needs to be adjusted, the staff manually moves the operating rod 25 to the right, and the rectangular rod on the operating rod 25 moves to the right in the rectangular groove of the moving plate 22, so that the protrusion on the operating rod 25 leaves the rectangular hole 26, and then the operating rod 25 is rotated to rotate the screw rod 20, so that the moving plate 22 threadedly connected to the screw rod 20 moves left and right, and the limiting rod 21 limits the moving trajectory of the moving plate 22, and the screw rod 20 rotates clockwise. When rotating, the movable plate 22 moves to the right and the folding plate 23 is unfolded. When the screw rod 20 rotates counterclockwise, the movable plate 22 moves to the left and the folding plate 23 is compressed to adjust the outlet size, thereby adjusting the outlet pressure. After the outlet pressure is adjusted, the protrusion on the operating rod 25 is aligned with the rectangular hole 26, and the protrusion on the operating rod 25 is inserted into the rectangular hole 26 to prevent the screw rod 20 from rotating arbitrarily. The above completes a series of operations of the pneumatic booster valve. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0064] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0065] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic booster valve, comprising a first housing (1) and a second housing (3), characterized in that: A bottom plate (2) is fixed below the first housing (1), and screw holes are provided inside the bottom plate (2); The second housing (3) is fixedly mounted on the left end of the first housing (1) by means of screws, a mounting housing (4) is fixed inside the second housing (3), and a housing cover (5) is fixed at the rear end of the second housing (3) by means of screws, an air intake pipe (6) is fixed on the housing cover (5), a motor (7) is fixed inside the mounting housing (4), a first bevel gear (9) is fixed at the output end of the motor (7), and a second bevel gear (8) is meshedly connected at the bottom end of the first bevel gear (9), a support plate (10) is fixed at the bottom end of the mounting housing (4), a filter plate (12) is fixed at the right end of the mounting housing (4), a cleaning plate (11) is arranged on the left side of the filter plate (12), the rear side surface of the filter plate (12) is in contact with the front side surface of the housing cover (5), and a telescopic tube (13) is installed at the right end of the mounting housing (4); A first gear (28) is fixed on the lower surface of the second bevel gear (8), a round seat (29) is provided on the right side of the first gear (28), the top end of the round seat (29) is rotatably connected to the second gear (30), a screw rod (31) is fixed inside the second gear (30), the outer end of the screw rod (31) is threadedly connected to a lifting plate (32), the lifting plate (32) and the cleaning plate (11) form a sliding structure, a connecting rod (33) is fixed on the outer side surface of the round seat (29), the right end of the connecting rod (33) is fixedly connected to a cover plate (36), an electric telescopic rod (34) fixed in the mounting shell (4) is provided on the outer side of the connecting rod (33), the output end of the electric telescopic rod (34) is fixed to the cover plate (36), a collecting box (35) is provided below the cover plate (36), and the collecting box (35) is attached to the left side surface of the filter plate (12); A rotating disk (14) is fixed to the front side of the first bevel gear (9), and the front end of the rotating disk (14) is rotatably connected to a support rod (15), the right end of the support rod (15) is rotatably connected to a moving rod (16), and a push plate (17) is fixed to the right side of the moving rod (16); A cylinder (18) is installed inside the first housing (1), a rectangular shell (19) is installed at the front end of the cylinder (18), an adjustment mechanism is installed inside the rectangular shell (19), a left side surface of a folding plate (23) is fixed to the inner left wall of the rectangular shell (19), and a movable plate (22) is fixed to the right side surface of the folding plate (23); An air outlet pipe (27) is installed at the front end of the first housing (1), and the air inlet pipe (6) and the air outlet pipe (27) are both connected to external pipes by means of threaded connection.

2. A pneumatic booster valve according to claim 1, characterized in that: The lifting plate (32) forms a lifting structure with the support plate (10) through the screw rod (31), and the inner side surface of the support plate (10) is in contact with the outer side surface of the lifting plate (32).

3. A pneumatic booster valve according to claim 1, characterized in that: The right side surface of the cleaning plate (11) is in contact with the left side surface of the filter plate (12).

4. The pneumatic booster valve according to claim 1, characterized in that: The mounting shell (4) is connected to the cylinder (18) via a telescopic tube (13).

5. The pneumatic booster valve according to claim 1, characterized in that: The first bevel gear (9), the rotating disk (14), the supporting rod (15), the moving rod (16) and the pushing plate (17) constitute a linkage mechanism, and the moving rod (16) is slidably mounted on the right end of the second housing (3).

6. The pneumatic booster valve according to claim 1, characterized in that: The adjusting mechanism comprises a screw rod (20), a limiting rod (21), a round rod (24) and an operating rod (25); the screw rod (20) is rotatably mounted inside a rectangular shell (19); a limiting rod (21) is arranged behind the screw rod (20); the limiting rod (21) is fixed inside the rectangular shell (19); a round rod (24) is fixed on the right side of the screw rod (20); and the operating rod (25) is mounted on the right side of the round rod (24).

7. A pneumatic booster valve according to claim 6, characterized in that: The operating rod (25) is connected to the first housing (1) by snap-fit ​​connection, and a rectangular hole (26) is provided at an equal angle on the right end of the first housing (1).

8. The pneumatic booster valve according to claim 1, characterized in that: The movable plate (22) and the screw rod (20) are connected in a threaded manner, and a limiting rod (21) penetrates the rear end of the movable plate (22).

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