Adjustable air cylinder air inlet device and using method thereof

Abstract

The invention relates to the technical field of air cylinders, and discloses an adjustable air cylinder air inlet device and a using method thereof.The adjustable air cylinder air inlet device is characterized in that an adjusting plug column is movably arranged in an air guide cylinder base, a thrust spring is pushed and pressed to the lower portion of the adjusting plug column under supporting of a convex column mounting base, and a limiting convex column is movably mounted in the convex column mounting base; the driving stud is driven by the servo motor to rotate in the middle of the top side of the mounting base, the protruding column mounting base is driven by the driving stud to be movably arranged in the middle of the protruding column mounting base in a telescopic mode, and the plunger type adjusting mechanism is adopted, the downward moving amount of the adjusting plunger can be controlled by changing the protruding amount of the limiting protruding column, so that the adjusting accuracy is improved. The air outlet flow of the air outlet pipe opening is adjusted and controlled, when air supply is stopped, the adjusting plug column can be rapidly rebounded and reset through resilience force provided by the thrust spring, rapid sealing of the air outlet pipe opening is achieved, the driving stud is driven through the servo motor, the whole process is automatic, and manual adjustment driving is not needed. And the moving speed of the cylinder is automatically controlled and adjusted.

Description

Technical Field

[0001] This invention relates to the field of cylinder technology, specifically to an adjustable cylinder intake device and its usage method. Background Technology

[0002] A cylinder is a component that converts the pressure energy of compressed air into mechanical energy to drive a mechanism to perform linear reciprocating motion, oscillation, and rotational motion. It is also known as a pneumatic actuator. When working, it drives the piston connected to the piston to reciprocate within the cylinder body through its internal piston component, thereby driving external components. Cylinders are widely used in automated production lines, assembly lines, hardware, mechanical tooling fixtures, and other fields.

[0003] The cylinder is driven by an external high-pressure air source. Since the inner diameter of the cylinder is fixed and cannot be adjusted, the cylinder's operating speed can only be controlled by changing the flow rate of the high-pressure air source. Existing intake regulating devices are mostly valve-type structures, which adjust the cylinder's operating speed by changing the valve body's opening degree. However, since the valve body itself lacks a check valve structure, it cannot quickly close the air orifice after operation, which will have a certain impact on the cylinder's support stability. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable cylinder intake device and its usage method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable cylinder air intake device, including a mounting base, an air guide cylinder seat on the upper part of the mounting base, an air inlet and an air outlet on the upper part of the air guide cylinder seat, and an adjustment mechanism inside the air guide cylinder seat;

[0006] The adjustment mechanism is used to adjust and control the amount of air output from the air outlet. The adjustment mechanism includes an adjustment plunger, a thrust spring, a convex mounting base, and a limiting convex. The adjustment plunger is movably disposed inside the air guide cylinder seat. The thrust spring is pushed against the lower part of the adjustment plunger under the support of the convex mounting base. The limiting convex is movably installed inside the convex mounting base.

[0007] The lower part of the limiting protrusion is provided with a servo motor and a drive stud. The drive stud rotates at the top center of the mounting base under the drive of the servo motor. The protrusion mounting seat is movably extended and retracted at the center of the protrusion mounting seat under the drive of the drive stud.

[0008] Preferably, the air inlet is fixedly connected to the top center of the air guide tube seat, the air outlet is fixedly connected to one side of the air guide tube seat, the air guide tube seat has a cylindrical cavity inside, and both the air inlet and the air outlet are connected to the cylindrical cavity.

[0009] Preferably, the aforementioned adjusting plunger is adapted to the cylindrical cavity, the adjusting plunger slides inside the cylindrical cavity, and an adjusting air chamber is provided on the air inlet side of the air outlet, with the adjusting plunger fitting and sealing the opening side of the adjusting air chamber.

[0010] Preferably, the lower inner part of the cylindrical cavity is provided with an internal thread, and the periphery of the convex pillar mounting seat is provided with an external thread. The convex pillar mounting seat is fixedly installed on the lower inner part of the cylindrical cavity by the thread.

[0011] Preferably, the top of the aforementioned protruding post mounting base is provided with an annular groove, the lower part of the thrust spring is fitted into the inside of the annular groove, the bottom of the adjusting plug is fixed with a plug connecting seat, and the top of the thrust spring abuts against the bottom side of the plug connecting seat.

[0012] Preferably, the above-mentioned convex post mounting base is provided with a guide hole in the middle, the limiting convex post is movably fitted into the inside of the guide hole from the bottom, the top end of the limiting convex post movably passes through the middle of the convex post mounting base, the lower part of the periphery of the limiting convex post is uniformly fixed with guide protrusions, and the inside of the guide hole is provided with a guide groove that matches the guide protrusions.

[0013] Preferably, a buffer pad is fixed to the top of the limiting protrusion, and a buffer pad is fixed to the middle of the bottom side of the plug connecting seat. When the adjusting plug moves down, the buffer pad and the buffer pad come into contact.

[0014] Preferably, the mounting base and the air guide cylinder seat are provided with fastening bolts on the contact side. The air guide cylinder seat is fixed to the top of the mounting base by the fastening bolts. The mounting base has a mounting groove in the middle of the top side. A mounting pad is fixed at the bottom of the mounting groove. The bottom end of the protruding column mounting seat is inserted into the interior of the mounting groove.

[0015] Preferably, the mounting base has a mounting shaft hole in the middle, the drive stud is inserted from the bottom and rotates inside the mounting shaft hole, the lower opening side of the mounting shaft hole is provided with a rotating shaft cover, the bottom center of the limiting protrusion is provided with a drive screw hole, the upper part of the drive stud is provided with a thread, the upper end of the drive stud is connected to the inside of the drive screw hole by the thread, the servo motor is fixed to the bottom middle of the mounting base, and the drive shaft end of the servo motor is fixedly connected to the bottom end of the drive stud.

[0016] The present invention also provides a method of using an adjustable cylinder intake device, comprising the following steps:

[0017] S1. Device installation: When installing the device, connect and fix the air supply pipe of the external air source to the air inlet at the top of the air guide cylinder base. Then connect and fix the air inlet pipe of the cylinder to the air outlet on the side of the air guide cylinder base. Connect the power supply control wiring of the servo motor to complete the device installation operation.

[0018] S2. Device Adjustment: After the device is installed, adjust the opening of the air outlet according to the stroke speed requirement of the working cylinder. During adjustment, control the servo motor by using the control button. When the servo motor drives the drive screw to rotate clockwise, the limit protrusion retracts downward under the drive of the drive screw. When the servo motor drives the drive screw to rotate counterclockwise, the limit protrusion rises upward under the drive of the drive screw. Adjust the protrusion of the limit protrusion according to the working requirements.

[0019] S3. After the cylinder drives and the device is adjusted, high-pressure gas supplied by an external air source is introduced through the inlet. Under the push of the high-pressure gas, the adjusting plunger retracts downward. During the retraction, the opening and closing degree of the adjusting air chamber changes and gradually increases as the adjusting plunger loses its sealing. When it contacts the convex mounting seat, the adjusting plunger stops moving downward under the resistance of the convex mounting seat. The sealing degree of the adjusting plunger on the adjusting air chamber remains constant, so that the outlet airflow is kept constant. During the air supply process, the airflow of the outlet airflow can be dynamically adjusted by changing the protrusion of the limiting convex. After the action is completed and the air source stops supplying air, the adjusting plunger is pushed back to its original position by the thrust spring, and closes the opening side of the adjusting air chamber, thus completing the cylinder driving operation.

[0020] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects:

[0021] 1. This air intake device adopts a plunger-type adjustment mechanism. An adjustment plunger is movably installed inside the air guide cylinder seat. The adjustment plunger is slidably installed in the cylinder cavity of the air guide cylinder seat. When sliding, it can change the degree of obstruction of the adjustment chamber on the air outlet side. A limit protrusion is provided at the lower part of the adjustment plunger. By changing the protrusion of the limit protrusion, the downward movement of the adjustment plunger can be controlled, thereby realizing the adjustment and control of the airflow at the air outlet. The structure is simple, reliable and stable in operation.

[0022] 2. A thrust spring is installed at the bottom of the adjusting plunger. The thrust spring provides support through the convex mounting seat and abuts against the bottom of the plunger connecting seat, which can provide a stable rebound thrust for the adjusting plunger. When the air supply stops, the rebound force provided by the thrust spring can make the adjusting plunger quickly rebound and reset, realizing the rapid closure of the air outlet. This can avoid cylinder rod vibration caused by gas backflow and has better working stability compared with the traditional valve-type air intake device.

[0023] 3. The limiting protrusion is driven by the drive stud, which can achieve precise adjustment of the protrusion amount of the limiting protrusion. A servo motor is set at the lower part of the drive stud, which drives the drive stud. The whole process is automatic and does not require manual adjustment, saving manpower. It can also be used in conjunction with control equipment to achieve automatic control and adjustment of cylinder movement speed. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall upper structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall lower structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the lower structure of the adjustment mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the upper structure of the adjustment mechanism of the present invention;

[0030] Figure 6 This is a schematic diagram of the mounting structure of the adjustment mechanism of the present invention on the upper part of the mounting base;

[0031] Figure 7 This is a schematic diagram of the upper structure of the mounting base of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Air guide tube seat; 3. Air inlet; 4. Air outlet; 5. Fastening bolt; 6. Servo motor; 7. Adjusting plunger; 8. Thrust spring; 9. Protrusion mounting seat; 10. Limiting protrusion; 11. Adjusting air chamber; 12. Plug connecting seat; 13. Guide insertion hole; 14. Guide protrusion; 15. Buffer bottom pad; 16. Buffer top pad; 17. Drive screw hole; 18. Drive stud; 19. Shaft cover; 20. Mounting pad; 21. Mounting groove. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0035] Example

[0036] Please see Figure 1-7 The present invention provides a technical solution: an adjustable cylinder air intake device, including a mounting base 1, an air guide seat 2 is provided on the upper part of the mounting base 1, and a mounting ring seat is provided on both the mounting base 1 and the air guide seat 2 for easy connection. A fastening bolt 5 is provided in the screw hole provided on the upper part of the mounting ring seat. The mounting ring seat is tightly fitted and fastened by the fastening bolt 5. The air guide seat 2 is fixed to the top of the mounting base 1 by the fastening bolt 5. In order to facilitate the installation of the air guide pipe, an air inlet 3 and an air outlet 4 are provided on the upper part of the air guide seat 2. The air inlet 3 is fixedly connected to the top center of the air guide seat 2 for connecting to the air supply pipeline of an external air source. The air outlet 4 is fixedly connected to one side of the air guide seat 2 for connecting to the air supply pipeline of the cylinder.

[0037] To achieve cylinder adjustment and control, an adjustment mechanism is provided inside the air guide cylinder seat 2. The adjustment mechanism is used to adjust and control the air output of the air outlet 4. The adjustment mechanism includes an adjusting plunger 7, a thrust spring 8, a convex mounting seat 9, and a limiting convex post 10. To facilitate the movable installation of the adjusting plunger 7, a cylindrical cavity is provided inside the air guide cylinder seat 2. Both the air inlet 3 and the air outlet 4 are connected to the cylindrical cavity. The adjusting plunger 7 is a hard rubber plunger with smooth circumference. The adjusting plunger 7 is adapted to the cylindrical cavity and slides inside the cylindrical cavity. An adjusting air chamber 11 is provided on the air inlet side of the air outlet 4. The adjusting plunger 7 fits and seals the opening side of the adjusting air chamber 11. By changing the degree of obstruction of the adjusting air chamber 11 during sliding, the air supply volume of the air outlet 4 can be adjusted and controlled.

[0038] To facilitate the installation of the protruding post mounting seat 9, an internal thread is provided on the lower inner side of the cylindrical cavity, and an external thread is provided on the periphery of the protruding post mounting seat 9. The protruding post mounting seat 9 is fixedly installed on the lower inner side of the cylindrical cavity by the thread, and can serve as a support structure for the installation of the thrust spring 8 and the limiting protruding post 10. The top of the protruding post mounting seat 9 is provided with an annular groove, and the lower part of the thrust spring 8 is fitted into the inside of the annular groove. The bottom of the adjusting plug 7 is fixed with a plug connecting seat 12. The top of the thrust spring 8 abuts against the bottom side of the plug connecting seat 12. The thrust spring 8 provides support through the protruding post mounting seat 9 and abuts against the bottom of the plug connecting seat 12, which can provide a stable rebound thrust for the adjusting plug 7. When the air supply stops, the rebound force provided by the thrust spring 8 can make the adjusting plug 7 quickly rebound and reset, realizing the rapid closure of the air outlet 4.

[0039] To facilitate the movable installation of the limiting protrusion 10, a guide hole 13 is provided in the middle of the protrusion mounting base 9. The limiting protrusion 10 is movably inserted into the guide hole 13 from the bottom, and the top of the limiting protrusion 10 moves through the middle of the protrusion mounting base 9, allowing for vertical telescopic sliding within the guide hole 13. To limit the axial rotation of the limiting protrusion 10, guide protrusions 14 are evenly fixed on the lower periphery of the limiting protrusion 10. The guide hole 13 has a guide groove that matches the guide protrusion 14. After the convex post 10 is installed, the guide protrusion 14 and the guide groove are movably engaged, which can prevent the axial rotation of the limiting protrusion 10. In order to avoid the rigid collision between the limiting protrusion 10 and the plug connecting seat 12, a buffer top pad 16 is fixed on the top of the limiting protrusion 10, and a buffer bottom pad 15 is fixed in the middle of the bottom side of the plug connecting seat 12. Both the buffer top pad 16 and the buffer bottom pad 15 are rubber pads. When the plug 7 is adjusted to move down, the buffer top pad 16 and the buffer bottom pad 15 come into contact, which can provide buffer protection for the contact side between the limiting protrusion 10 and the plug connecting seat 12.

[0040] To facilitate support and protection for the protruding column mounting base 9, a mounting groove 21 is provided in the middle of the top side of the mounting base 1. A mounting pad 20 is fixed at the bottom of the mounting groove 21. The mounting groove 21 is adapted to the bottom end of the protruding column mounting base 9. The bottom end of the protruding column mounting base 9 is fitted into the interior of the mounting groove 21. The mounting pad 20 is a rubber pad that can provide padding and protection for the lower part of the protruding column mounting base 9.

[0041] To achieve automatic lifting and lowering of the limiting protrusion 10, a servo motor 6 and a drive stud 18 are provided at the lower part of the limiting protrusion 10. A mounting shaft hole is provided in the middle of the mounting base 1. The drive stud 18 is inserted into and rotates inside the mounting shaft hole from the bottom. A rotating shaft cover 19 is provided on the lower opening side of the mounting shaft hole. The rotating shaft cover 19 is fixedly installed on the lower opening side of the mounting shaft hole by threads, which can axially limit the drive stud 18 after installation. The servo motor 6 is fixed to the middle of the bottom side of the mounting base 1. The drive shaft end of the servo motor 6 is fixedly connected to the bottom end of the drive stud 18. Driven by the servo motor 6, the moving stud 18 rotates at the top center of the mounting base 1. To facilitate connection with the driving stud 18, a driving screw hole 17 is provided at the bottom center of the limiting protrusion 10. The upper part of the driving stud 18 is provided with threads, and the upper end of the driving stud 18 is connected to the inside of the driving screw hole 17 through the threads. The protrusion mounting base 9 is movably extended and retracted at the center of the protrusion mounting base 9 under the drive of the driving stud 18. The entire process is automatic and does not require manual adjustment, saving manpower and can be used in conjunction with control equipment to realize automatic control and adjustment of cylinder movement speed.

[0042] Working principle or structural principle: When working, first install the device. When installing the device, connect and fix the air supply pipe of the external air source to the air inlet 3 at the top of the air guide cylinder seat 2. Then connect and fix the air inlet pipe of the cylinder to the air outlet 4 on the side of the air guide cylinder seat 2. Connect the power supply control wiring of the servo motor 6 to complete the installation operation of the device.

[0043] After the device is installed, the opening of the air outlet 4 is adjusted according to the stroke speed requirement of the working cylinder. During adjustment, the servo motor 6 is driven by the control button. When the servo motor 6 drives the drive stud 18 to rotate clockwise, the limit protrusion 10 retracts downward under the drive of the drive stud 18. When the servo motor 6 drives the drive stud 18 to rotate counterclockwise, the limit protrusion 10 is pushed upward under the drive of the drive stud 18. The protrusion amount of the limit protrusion 10 is adjusted according to the working requirements.

[0044] After the device adjustment is completed, high-pressure gas supplied by the external air source is introduced through the air inlet 3. Under the push of the high-pressure gas, the adjusting plunger 7 retracts downward. During the retraction, the opening and closing degree of the adjusting air chamber 11 changes and gradually increases as the adjusting plunger 7 loses its sealing. When it contacts the convex mounting seat 9, the adjusting plunger 7 stops moving downward under the resistance of the convex mounting seat 9. The sealing degree of the adjusting plunger 7 on the adjusting air chamber 11 remains constant, so that the air outlet 4 maintains a constant air flow. During the air supply process, the air flow of the air outlet 4 can be dynamically adjusted by changing the protrusion of the limiting convex 10. After the action is completed and the air source stops supplying air, the adjusting plunger 7 is pushed back to its original position by the thrust spring 8, and closes the opening side of the adjusting air chamber 11, thus completing the cylinder driving operation.

[0045] In summary, this air intake device adopts a plunger-type adjustment mechanism. An adjusting plunger 7 is movably installed inside the air guide cylinder seat 2. The adjusting plunger 7 is slidably installed within the cylinder cavity of the air guide cylinder seat 2. During sliding, it can change the degree of obstruction to the adjusting air chamber 11 on the side of the air outlet 4. A limiting protrusion 10 is provided at the lower part of the adjusting plunger 7. By changing the protrusion amount of the limiting protrusion 10, the downward movement of the adjusting plunger 7 can be controlled, thereby achieving adjustment and control of the airflow at the air outlet 4. The structure is simple, reliable, and stable in operation. A thrust spring 8 is provided at the bottom of the adjusting plunger 7. The thrust spring 8 is supported by the protrusion mounting seat 9 and abuts against the bottom of the plunger connecting seat 12, providing support for the adjusting plunger 7. The stable rebound thrust, provided by the thrust spring 8 when the air supply stops, allows the adjusting plunger 7 to quickly rebound and reset, achieving rapid closure of the air outlet 4. This avoids cylinder rod vibration caused by gas backflow and provides better working stability compared to traditional valve-type air intake devices. Furthermore, the limiting protrusion 10 is driven by the drive stud 18, enabling precise adjustment of the protrusion amount. A servo motor 6 is installed at the lower part of the drive stud 18, driving the drive stud 18 automatically throughout the process without manual adjustment, saving manpower and allowing for automatic control and adjustment of cylinder movement speed when used in conjunction with control equipment.

[0046] The present invention also provides a method of using an adjustable cylinder intake device, comprising the following steps:

[0047] S1. Device installation: When installing the device, connect and fix the air supply pipe of the external air source to the air inlet 3 at the top of the air guide cylinder seat 2. Then connect and fix the air inlet pipe of the cylinder to the air outlet 4 on the side of the air guide cylinder seat 2. Connect the power supply control wiring of the servo motor 6 to complete the device installation operation.

[0048] S2. Device Adjustment: After the device is installed, adjust the opening of the air outlet 4 according to the stroke speed requirement of the working cylinder. During adjustment, drive the servo motor 6 through the control button. When the servo motor 6 drives the drive stud 18 to rotate clockwise, the limit protrusion 10 retracts downward under the drive of the drive stud 18. When the servo motor 6 drives the drive stud 18 to rotate counterclockwise, the limit protrusion 10 rises upward under the drive of the drive stud 18. Adjust the protrusion amount of the limit protrusion 10 according to the work requirements.

[0049] S3. After the cylinder is driven and the device adjustment is completed, the high-pressure gas supplied by the external air source is introduced through the air inlet 3. Under the push of the high-pressure gas, the adjusting plunger 7 retracts downward. During the retraction, the opening and closing degree of the adjusting air chamber 11 changes and gradually increases due to the loss of the sealing of the adjusting plunger 7. When it contacts the convex mounting seat 9, the adjusting plunger 7 stops moving downward under the resistance of the convex mounting seat 9. The sealing degree of the adjusting plunger 7 on the adjusting air chamber 11 remains constant, so that the air outlet 4 maintains a constant air flow. During the air supply process, the air flow of the air outlet 4 can be dynamically adjusted by changing the protrusion of the limiting convex 10. After the action is completed and the air source stops supplying air, the adjusting plunger 7 is pushed back to its original position by the thrust spring 8, and closes the opening side of the adjusting air chamber 11, thus completing the cylinder driving operation.

[0050] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. It should be noted that implementations not illustrated or described in the drawings or the main text of the specification are forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the components described above are not limited to the various specific structures, shapes, or methods mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.

[0051] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable cylinder intake device, comprising a mounting base (1), characterized in that: The upper part of the mounting base (1) is provided with an air guide cylinder seat (2), the upper part of the air guide cylinder seat (2) is provided with an air inlet (3) and an air outlet (4), and the interior of the air guide cylinder seat (2) is provided with an adjustment mechanism. The adjustment mechanism is used to adjust and control the amount of air output from the air outlet (4). The adjustment mechanism includes an adjustment plunger (7), a thrust spring (8), a convex mounting base (9), and a limiting convex post (10). The adjustment plunger (7) is movably disposed inside the air guide cylinder seat (2). The thrust spring (8) is pushed against the lower part of the adjustment plunger (7) under the support of the convex mounting base (9). The limiting convex post (10) is movably disposed inside the convex mounting base (9). The lower part of the limiting protrusion (10) is provided with a servo motor (6) and a drive stud (18). The drive stud (18) rotates at the top center of the mounting base (1) under the drive of the servo motor (6). The protrusion mounting seat (9) is movably extended and retracted at the center of the protrusion mounting seat (9) under the drive of the drive stud (18).

2. The adjustable cylinder intake device according to claim 1, characterized in that: The air inlet (3) is fixedly connected to the top center of the air guide cylinder seat (2), and the air outlet (4) is fixedly connected to one side of the air guide cylinder seat (2). The air guide cylinder seat (2) has a cylindrical cavity inside, and both the air inlet (3) and the air outlet (4) are connected to the cylindrical cavity.

3. The adjustable cylinder air intake device according to claim 2, characterized in that: The adjusting plunger (7) is adapted to the cylindrical cavity, and the adjusting plunger (7) slides inside the cylindrical cavity. An adjusting air chamber (11) is provided on the air inlet side of the air outlet (4), and the adjusting plunger (7) fits and seals the opening side of the adjusting air chamber (11).

4. The adjustable cylinder intake device according to claim 3, characterized in that: The lower inner side of the cylindrical cavity is provided with an internal thread, and the circumference of the protruding column mounting seat (9) is provided with an external thread. The protruding column mounting seat (9) is fixedly installed on the lower inner side of the cylindrical cavity by the thread.

5. An adjustable cylinder intake device according to claim 4, characterized in that: The top of the protruding post mounting base (9) is provided with an annular groove, the lower part of the thrust spring (8) is fitted into the inside of the annular groove, the bottom of the adjusting plug (7) is fixed with a plug connecting seat (12), and the top of the thrust spring (8) abuts against the bottom side of the plug connecting seat (12).

6. The adjustable cylinder intake device according to claim 5, characterized in that: The center of the convex post mounting base (9) is provided with a guide hole (13). The limiting convex post (10) is movably fitted into the interior of the guide hole (13) from the bottom. The top end of the limiting convex post (10) movably passes through the center of the convex post mounting base (9). Guide protrusions (14) are uniformly fixed on the lower periphery of the limiting convex post (10). The interior of the guide hole (13) is provided with a guide groove that matches the guide protrusions (14).

7. An adjustable cylinder intake device according to claim 6, characterized in that: The top of the limiting protrusion (10) is fixed with a buffer top pad (16), and the bottom of the plug connecting seat (12) is fixed with a buffer bottom pad (15). When the adjusting plug (7) moves down, the buffer top pad (16) and the buffer bottom pad (15) come into contact.

8. An adjustable cylinder intake device according to claim 7, characterized in that: The mounting base (1) and the air guide cylinder seat (2) are connected by fastening bolts (5). The air guide cylinder seat (2) is fixed to the top of the mounting base (1) by fastening bolts (5). The mounting base (1) has a mounting groove (21) in the middle of the top side. The mounting groove (21) has a mounting pad (20) fixed at the bottom. The bottom end of the protruding column mounting seat (9) is inserted into the interior of the mounting groove (21).

9. An adjustable cylinder intake device according to claim 8, characterized in that: The mounting base (1) has a mounting shaft hole in the middle. The drive stud (18) is inserted from the bottom and rotates inside the mounting shaft hole. The lower opening side of the mounting shaft hole is provided with a rotating shaft cover (19). The bottom center of the limiting protrusion (10) is provided with a drive screw hole (17). The upper part of the drive stud (18) is provided with a thread. The upper end of the drive stud (18) is connected to the inside of the drive screw hole (17) by the thread. The servo motor (6) is fixed to the middle of the bottom side of the mounting base (1). The drive shaft end of the servo motor (6) is fixedly connected to the bottom end of the drive stud (18).

10. A method of using an adjustable cylinder intake device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Device installation: When installing the device, connect and fix the air supply pipe of the external air source to the air inlet (3) at the top of the air guide cylinder seat (2), then connect and fix the air inlet pipe of the cylinder to the air outlet (4) on the side of the air guide cylinder seat (2), connect the power supply control wiring of the servo motor (6), and complete the device installation operation. S2. Device adjustment: After the device is installed, adjust the opening of the air outlet (4) according to the stroke speed requirement of the working cylinder. During adjustment, drive the servo motor (6) through the control button. When the servo motor (6) drives the drive stud (18) to rotate clockwise, the limit protrusion (10) retracts downward under the drive of the drive stud (18). When the servo motor (6) drives the drive stud (18) to rotate counterclockwise, the limit protrusion (10) rises upward under the drive of the drive stud (18). Adjust the protrusion of the limit protrusion (10) according to the work requirements. S3. After the cylinder is driven and the device is adjusted, the high-pressure gas supplied by the external air source is introduced through the air inlet (3). Under the push of the high-pressure gas, the adjusting plug (7) retracts downward. When it retracts, the opening and closing degree of the adjusting air chamber (11) changes and gradually increases. When it contacts the convex mounting seat (9), the adjusting plug (7) stops moving downward under the resistance of the convex mounting seat (9). The sealing degree of the adjusting plug (7) on the adjusting air chamber (11) remains constant, so that the air outlet (4) maintains a constant air flow. During the air supply process, the air flow of the air outlet (4) can be dynamically adjusted by changing the protrusion of the limiting convex (10). After the action is completed and the air source stops supplying air, the adjusting plug (7) is pushed back and reset by the thrust spring (8), and the opening side of the adjusting air chamber (11) is closed, thus completing the cylinder driving operation.

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