Quick-opening pull plate pneumatic driving structure

Abstract

The invention provides a quick-opening pull plate pneumatic driving structure which comprises a pull plate trolley seat, a pull plate claw and an air cylinder, a push rod is arranged at the inner end of the air cylinder, a positioning shaft is arranged at the outer end of the push rod, the outer end of a fixing rod is movably connected with the pull plate claw, a positioning notch is formed in the inner end of the pull plate claw, and the fixing rod is arranged at the inner end of the positioning notch. The energy consumption reduction assembly is used for reducing internal friction loss when the air cylinder pushes the push rod to move and comprises an air bin and an oil bin, a sealing ladder column is arranged between the air bin and the oil bin, the outer end of the air cylinder is connected with an air injection pipe, an oil injection pipe and an oil pressure pipe are arranged at the upper end of the oil bin, a linkage spring is arranged between the oil injection pipe and the oil pressure pipe, and a linkage barrel is arranged at the upper end of the oil injection pipe. An oil injection port is formed between the oil bin and the oil pressure pipe. The problems that according to the pneumatic driving design of the pulling plate trolley, energy conversion loss cannot be well reduced in the driving process of a pneumatic driving mode, and internal noise is easily generated under the high-temperature and high-humidity conditions are solved.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic drive of a plate pulling trolley, and in particular to a pneumatic drive structure for a quick-opening plate pulling trolley. Background Art

[0002] The filter press is a mechanical device used for solid-liquid separation, and is widely used in many industries such as chemical, pharmaceutical, and food processing. One of its core parts is the quick-opening plate pulling mechanism, which is mainly used to achieve rapid opening and closing of the filter chamber to improve the filtration efficiency. The pneumatically driven quick-opening plate pulling mechanism uses compressed air as the power source and realizes rapid control of the filter plate through a series of mechanical structure conversions.

[0003] The working principle of the pneumatic drive structure is as follows: (1) Pressure conversion: compressed air enters the cylinder or actuator, converting air pressure energy into mechanical energy; (2) Push rod movement: the piston in the cylinder is pushed by the gas pressure, driving the push rod to move linearly; (3) Connecting rod transmission: the push rod is connected to the connecting rod system to convert linear motion into rotational motion or other required complex motion patterns; (4) Filter plate movement: the other end of the connecting rod system is connected to the filter plate, ultimately achieving rapid opening or closing of the filter plate.

[0004] The pneumatic drive structure has the following advantages: quick response, which can realize instant opening and closing of the filter plate, greatly shortening the working cycle and improving production efficiency; easy operation, through pneumatic control valves and other components, it can easily realize automation or remote control, reduce manual intervention and reduce labor intensity; high safety, compared with hydraulic drive, pneumatic system has a small risk of leakage and is safer and more reliable in high temperature environment.

[0005] In the prior art, during the use of the pneumatic drive of the pull plate trolley, the pneumatic drive method cannot effectively reduce the loss of energy conversion during the driving process, and under high temperature and high humidity conditions, it is easy to cause internal noise; therefore, we have made improvements to this and proposed a quick-open pull plate pneumatic drive structure. Summary of the invention

[0006] The purpose of the present invention is to address the problem that the current design of the pneumatic drive of the plate pulling trolley cannot effectively reduce the loss of energy conversion during the driving process of the pneumatic drive mode, and is prone to cause internal noise generation under high temperature and high humidity conditions.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0008] A pneumatic drive structure for a quick-opening pull plate is provided to improve the above-mentioned problem.

[0009] The specific application is as follows:

[0010] A pneumatic drive structure for a quick-opening pull plate, comprising a pull plate trolley seat, a pull plate claw and a cylinder, wherein a push rod is provided at the inner end of the cylinder, a positioning shaft is provided at the outer end of the push rod, the outer end of the fixing rod is movably connected with the pull plate claw, a positioning notch is provided at the inner end of the pull plate claw, a fixing rod is provided at the inner end of the positioning notch, and further comprising:

[0011] The energy-reducing component is used to reduce the internal friction loss when the cylinder pushes the push rod to move. The energy-reducing component includes an air bin and an oil bin. A sealing ladder column is provided between the air bin and the oil bin. The outer end of the cylinder is connected to an air injection pipe. The upper end of the oil bin is provided with an oil injection pipe and an oil pressure pipe. A linkage spring is provided between the oil injection pipe and the oil pressure pipe. A linkage cylinder is provided at the upper end of the oil injection pipe. An oil injection port is provided between the oil bin and the oil pressure pipe.

[0012] As the preferred technical solution of the present application, the cross-sectional size of the air bin end of the sealing ladder column is larger than that of the oil bin end, and the air bin end of the sealing ladder column is wrapped with a sealing ring, the outer end of the air bin is movably connected to the air injection pipe, and the upper end of the oil bin is through-connected to the oil pressure pipe.

[0013] As the preferred technical solution of the present application, the oil filling pipe slides up and down along the oil pressure pipe, the linkage spring is wrapped around the outer end of the oil filling pipe, the upper end of the oil filling pipe slides up and down along the linkage cylinder, and the linkage cylinder is threadedly connected to the upper end of the pull plate trolley seat.

[0014] As a preferred technical solution of the present application, the oil tank and the oil pressure pipe are connected through an opening and closing of the oil filling port.

[0015] As the preferred technical solution of the present application, a linkage shaft is provided at the inner end of the oil filling port, a linkage scale spring is provided at the outer end of the linkage shaft, a movable plate is provided at the outer end of the linkage scale spring, a conical plate is provided at the outer end of the movable plate, an elastic plate is provided at the inner end of the oil tank, a connecting shaft is provided at one end of the elastic plate, a positioning column and a linkage slider are provided at the other end of the elastic plate, a linkage slide rod is provided at the inner end of the linkage slider, a positioning spring is provided at the outer end of the linkage slide rod, and a linkage slide groove is provided at the outer end of the positioning spring.

[0016] As the preferred technical solution of the present application, the linkage shaft is fixed on the inner surface of one end of the oil filling port, the linkage scale spring is wrapped around the outer end of the linkage shaft, one end of the linkage scale spring is fixedly connected to the movable plate, and the other end of the linkage scale spring is movably connected to the linkage shaft.

[0017] As a preferred technical solution of the present application, one end of the movable plate is sleeved on the outer end of the linkage shaft, and the cross-section of the other end of the movable plate is a trapezoid that is narrow on the left and wide on the right. The narrow end of the movable plate is in contact with the outer end of the conical plate, and the conical plate is fixed to the inner surface of the other end of the oil filling port. The conical plate is made of silicone material that is resistant to high and low temperatures.

[0018] As the preferred technical solution of the present application, one end of the elastic plate is penetrated by the connecting shaft, and the other end of the elastic plate is penetrated by the positioning column. The positioning column is fixed on the inner surface of the right end of the oil tank. The number of the positioning columns is set to two, and the two positioning columns are respectively fixed on the front and rear ends of one side of the elastic plate.

[0019] As the preferred technical solution of the present application, the linkage slider is fixed on the central outer surface of the elastic plate, the linkage slider slides up and down along the linkage slide groove, the linkage slide rod runs through the upper and lower outer surfaces of the linkage slider, and the positioning spring is wrapped around the outer end of the linkage slide rod.

[0020] As a preferred technical solution of the present application, the fixing rod is fixed to the tail end of the push rod, the plate pulling claw is rotatably connected to the outer end of the fixing rod, and the positioning notch runs through the outer surfaces of the front and rear ends of the plate pulling claw.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the scheme of this application:

[0023] Through the carefully designed energy-saving components, not only the friction and energy loss during system operation are effectively reduced, but also the stability and durability in complex environments are ensured through the sophisticated oil circulation system, which greatly improves the overall efficiency of the equipment and reduces maintenance costs. It is especially outstanding when operating under high temperature and high humidity conditions, avoids the noise problems that may be caused by long-term operation, and enhances the reliability and economy of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall front view of a pneumatic drive structure for a quick-opening pull plate provided in the present application;

[0025] Figure 2 This is a schematic diagram of the overall rear view structure of a pneumatic drive structure for a quick-opening pull plate provided in this application;

[0026] Figure 3 A schematic diagram of a partial side section front view of a pull plate claw of a quick-open pull plate pneumatic drive structure provided in the present application;

[0027] Figure 4 A quick-opening pull plate pneumatic drive structure provided in this application Figure 3 Center left enlarged front view;

[0028] Figure 5 A quick-opening pull plate pneumatic drive structure provided in this application Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0029] Figure 6 A schematic diagram of a side cross-sectional structure of a push rod of a pneumatic drive structure for a quick-opening pull plate provided in the present application;

[0030] Figure 7 A quick-opening pull plate pneumatic drive structure provided in this application Figure 6 Schematic diagram of the enlarged structure of B.

[0031] Indicated in the figure:

[0032] 1. Pull plate trolley seat; 2. Pull plate claw; 3. Cylinder; 4. Push rod; 6. Positioning shaft; 7. Fixed rod; 8. Positioning notch; 9. Sealing ladder column; 10. Air chamber; 11. Air injection pipe; 12. Oil chamber; 13. Oil injection pipe; 14. Linkage spring; 15. Oil pressure pipe; 16. Movable plate; 17. Oil injection port; 18. Linkage shaft; 19. Linkage ruler spring; 20. Conical plate; 21. Connecting shaft; 22. Elastic plate; 23. Positioning small column; 24. Linkage slider; 25. Linkage slide groove; 26. Linkage slide rod. DETAILED DESCRIPTION

[0033] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0034] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. 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. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] like Figure 1-7 As shown, this embodiment proposes a pneumatic drive structure for a quick-opening pull plate, including a pull plate trolley seat 1, a pull plate claw 2 and a cylinder 3, a push rod 4 is provided at the inner end of the cylinder 3, a positioning shaft 6 is provided at the outer end of the push rod 4, the outer end of the fixing rod 7 is movably connected to the pull plate claw 2, a positioning notch 8 is provided at the inner end of the pull plate claw 2, and a fixing rod 7 is provided at the inner end of the positioning notch 8, and further includes:

[0037] The energy-saving component is used to reduce the internal friction loss when the cylinder 3 pushes the push rod 4 to move. The energy-saving component includes an air bin 10 and an oil bin 12. A sealing ladder column 9 is provided between the air bin 10 and the oil bin 12. The outer end of the cylinder 3 is connected to an air injection pipe 11. The upper end of the oil bin 12 is provided with an oil injection pipe 13 and an oil pressure pipe 15. A linkage spring 14 is provided between the oil injection pipe 13 and the oil pressure pipe 15. The upper end of the oil injection pipe 13 is provided with a linkage cylinder. An oil injection port 17 is provided between the oil bin 12 and the oil pressure pipe 15.

[0038] The plate pulling trolley seat 1, the plate pulling claw 2, and the cylinder 3 constitute the basic frame to realize the basic requirements of the plate pulling action;

[0039] The push rod 4 and the positioning shaft 6 in the cylinder 3 are linked with the plate pulling claw 2 and connected by the fixing rod 7, so that the plate pulling claw 2 can be opened or closed;

[0040] The energy-reducing component includes an air tank 10 and an oil tank 12, which are isolated by a sealing ladder column 9 but interact with each other, aiming to reduce the energy loss during the operation of the cylinder 3;

[0041] When the cylinder 3 pushes the push rod 4, the volume change of the air chamber 10 causes pressure fluctuation, thereby prompting the cooling oil in the oil chamber 12 to flow in through the oil filling port 17. The linkage spring 14, linkage cylinder and other components work in coordination to ensure the circulation of oil to achieve the effect of lubrication and heat dissipation.

[0042] The cross-sectional size of the air bin 10 end of the sealing ladder column 9 is larger than that of the oil bin 12 end, and the air bin 10 end of the sealing ladder column 9 is wrapped with a sealing ring, the outer end of the air bin 10 is movably connected to the air injection pipe 11, and the upper end of the oil bin 12 is connected through the oil pressure pipe 15.

[0043] The design of the sealing ladder column 9 is key, with the air chamber 10 end being larger to maintain good sealing, and the oil chamber 12 end being smaller to facilitate oil flow;

[0044] In addition, the sealing ring enhances airtightness and ensures efficient operation of the system.

[0045] The oil filling pipe 13 slides up and down along the oil pressure pipe 15, the linkage spring 14 is wrapped around the outer end of the oil filling pipe 13, and the upper end of the oil filling pipe 13 slides up and down along the linkage cylinder, which is threadedly connected to the upper end of the pull plate trolley seat 1.

[0046] The oil tank 12 and the oil pressure pipe 15 are connected in an openable and closable manner via an oil filling port 17 .

[0047] The inner end of the oil filling port 17 is provided with a linkage shaft 18, the outer end of the linkage shaft 18 is provided with a linkage spring 19, the outer end of the linkage spring 19 is provided with a movable plate 16, the outer end of the movable plate 16 is provided with a conical plate 20, the inner end of the oil tank 12 is provided with an elastic plate 22, one end of the elastic plate 22 is provided with a connecting shaft 21, the other end of the elastic plate 22 is provided with a positioning column 23 and a linkage slider 24, the inner end of the linkage slider 24 is provided with a linkage slide rod 26, the outer end of the linkage slide rod 26 is provided with a positioning spring, and the outer end of the positioning spring is provided with a linkage slide groove 25.

[0048] The linkage shaft 18, linkage spring 19, movable plate 16, conical plate 20 and other structures provided at the oil filling port 17, as well as the elastic plate 22, connecting shaft 21, positioning column 23, linkage slider 24 and other parts together constitute a complex oil control mechanism, so that the oil can be quickly replenished to the oil tank 12 when necessary, while ensuring the stability of the oil pressure.

[0049] The linkage shaft 18 is fixed to the inner surface of one end of the oil filling port 17 , and the linkage spring 19 is wrapped around the outer end of the linkage shaft 18 . One end of the linkage spring 19 is fixedly connected to the movable plate 16 , and the other end of the linkage spring 19 is movably connected to the linkage shaft 18 .

[0050] One end of the movable plate 16 is sleeved on the outer end of the linkage shaft 18, and the cross-section of the other end of the movable plate 16 is a trapezoidal shape that is narrow on the left and wide on the right. The narrow end of the movable plate 16 is in contact with the outer end of the conical plate 20, and the conical plate 20 is fixed to the inner surface of the other end of the oil filling port 17. The conical plate 20 is made of silicone material that is resistant to high and low temperatures.

[0051] One end of the elastic plate 22 is penetrated by the connecting shaft 21, and the other end of the elastic plate 22 is penetrated by the positioning column 23. The positioning column 23 is fixed to the inner surface of the right end of the oil tank 12. The number of the positioning columns 23 is set to two, and the two positioning columns 23 are respectively fixed to the front and rear ends of one side of the elastic plate 22.

[0052] The linkage slider 24 is fixed on the central outer surface of the elastic plate 22 , and the linkage slider 24 slides up and down along the linkage slide groove 25 . The linkage slide rod 26 runs through the upper and lower outer surfaces of the linkage slider 24 , and the positioning spring is wrapped around the outer end of the linkage slide rod 26 .

[0053] The fixing rod 7 is fixed to the rear end of the push rod 4 , the plate pulling claw 2 is rotatably connected to the outer end of the fixing rod 7 , and the positioning notch 8 runs through the outer surfaces of the front and rear ends of the plate pulling claw 2 .

[0054] During the exhaust phase of the cylinder 3, the space in the air chamber 10 is reduced, prompting the oil to circulate to the oil chamber 12, and the lubricating oil is replenished in time; during the inflation phase, on the contrary, the excess oil can return to the oil pressure pipe 15 through the oil filling port 17, ensuring that the entire system is in the best lubrication state, reducing energy consumption and improving energy utilization efficiency.

[0055] When using this application:

[0056] (1) Significant reduction in energy consumption: The innovative design of energy-saving components, through the precise interaction mechanism between the air tank 10 and the oil tank 12, greatly reduces the friction loss of the cylinder 3 during the pushing process, reduces unnecessary energy consumption, improves energy utilization efficiency, and makes a positive contribution to environmental protection and energy saving;

[0057] (2) Efficient lubrication and cooling performance: The delicate connection between the built-in oil tank 12 and the oil pressure pipe 15 can effectively circulate the cooling oil to ensure that the moving parts are fully lubricated. At the same time, it provides a good cooling effect and prolongs the service life of the equipment, especially in high temperature and high humidity working environments.

[0058] (3) Reduce noise pollution: The advanced design concept optimizes the contact and movement mode between mechanical parts, greatly reduces the noise caused by friction, creates a quieter operating environment, and meets the trend of modern production requirements for low noise;

[0059] (4) Improving operational reliability and safety: The precise positioning structure (such as the positioning notch 8 and the positioning column 23) cooperates with the multi-point control mechanism to ensure that the plate pulling action is accurate, improve the stability and safety of the operation, reduce the potential failure rate, and is suitable for continuous high-intensity operation conditions;

[0060] (5) Easy maintenance and upkeep: The design takes into account the convenience of replacement of wearing parts and daily maintenance in actual applications. Parts such as sealing rings and linkage springs 14 can be regularly inspected and replaced to ensure that the high-performance output of the equipment under long-term operation can adapt to harsh working conditions;

[0061] (6) Special treatment has been carried out for high temperature and high humidity environments. Through the unique oil circulation and cooling system, stable performance can be maintained even under extreme conditions to meet the demanding needs of special industries.

[0062] One of the embodiments:

[0063] Operation start-up phase: When the filtering operation begins, the cylinder 3 extracts gas through the gas injection pipe 11, reducing the volume of air in the gas bin 10 and pushing the sealing ladder column 9 to move toward the gas bin 10. This causes the space of the oil bin 12 to increase, and the internal cooling oil is pressurized to flow along the oil injection pipe 13 to the oil pressure pipe 15, and under the action of the linkage spring 14, the column oil pipe descends, thereby pushing the cooling oil into the oil bin 12 from the oil injection port 17. At this time, the movable plate 16 is separated from the conical plate 20 under the action of the linkage shaft 18 and the linkage ruler spring 19, and rotates downward to facilitate the cooling oil to flow smoothly into the oil bin 12. At the same time, the elastic plate 22 bounces upward under the influence of the linkage slide 25, the linkage slider 24 and the positioning spring, quickly filling the oil bin 12, ready for subsequent operations.

[0064] The plate pulling action is executed: as the cylinder 3 continues to supply air, the sealing ladder column 9 moves further toward the oil tank 12, and the cooling oil acts as a lubricant to help reduce friction and heat generation. At this time, the plate pulling claw 2, with the help of the linkage of the fixing rod 7 and the positioning shaft 6, rotates downward and leaves the original filter plate position, ready to receive or release the filter cake.

[0065] Return stage: After completing one filtration, the cylinder 3 is filled with gas again to push the sealing ladder column 9 back to the initial position. The cooling oil part opens the oil filling port 17 through the upward flip of the movable plate 16 and re-enters the oil pressure pipe 15. The elastic plate 22 returns to its original state under the pressure of the sealing ladder column 9 and clings to the bottom surface of the oil tank 12. The whole process ensures that the gas tank 10 and the oil tank 12 are fully lubricated, maintains stable operation, avoids noise and energy consumption problems, ensures that it can still work stably under high temperature and high humidity conditions, reduces energy waste, and improves the overall conversion efficiency.

[0066] When the present application is in use: in order to prevent the direct cylinder 3 drive from causing an increase in internal friction, affecting the energy consumption of rebound, and easily generating friction noise problems under high temperature and high humidity for a long time, during use, the air injection pipe 11 connected to the cylinder 3 extracts gas, and at this time the space of the air bin 10 is reduced, driving the sealing ladder column 9 to move toward the air bin 10, and the space of the oil bin 12 is increased, and the column oil pipe located in the oil pressure pipe 15 moves downward to push the cooling oil located in the oil pressure pipe 15 to be injected into the oil bin 12 from the oil filling port 17, and at this time the linkage spring 14 is stretched, and in this process, the movable plate 16 at the oil filling port 17 is separated from the conical plate 20 under the action of the linkage shaft 18 and the linkage ruler spring 19, and rotates downward. The elastic plate 22 at the lower end of the oil bin 12 is also limited by the linkage slot 25, linkage slider 24 and linkage slide rod 26 at the right end, and is elastically moved upward under the action of the positioning spring. At this time, there is no contact between the elastic plate 22 and the sealing ladder column 9. The left end of the elastic plate 22 is positioned and rotated by the connecting shaft 21, and the front and rear sides of the right end of the elastic plate 22 are positioned and moved by the positioning small column 23. The central part moves upward along the linkage slot 25 through the linkage slider 24, so that the cooling oil can quickly fill the oil bin 12. In this process, the pull plate claw 2 is rotated downward to leave the corresponding filter plate.

[0067] After the cylinder 3 injects gas into the air bin 10, the sealing ladder column 9 moves toward the oil bin 12. During this process, the cooling oil plays a certain lubricating role, and the excess cooling oil can be returned to the oil pressure pipe 15 by rotating the movable plate 16 upward to open the oil filling port 17. During this process, the elastic plate 22 is also squeezed by the sealing ladder column 9 to return to the original state and adhere to the lower inner wall of the oil bin 12. During this process, the air bin 10 and the oil bin 12 can be lubricated, which is convenient for the cylinder 3 to operate stably in a high temperature and high humidity environment, and will not cause noise problems after long-term use. In addition, the lubricated air bin 10 can greatly reduce energy consumption when pneumatically driven, which is convenient for enhancing the overall energy conversion efficiency.

[0068] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A pneumatic drive structure for a quick-opening pull plate, comprising a pull plate trolley seat (1), a pull plate claw (2) and a cylinder (3), characterized in that: The inner end of the cylinder (3) is provided with a push rod (4), the outer end of the push rod (4) is provided with a positioning shaft (6), the outer end of the fixing rod (7) is movably connected to the plate pulling claw (2), the inner end of the plate pulling claw (2) is provided with a positioning notch (8), the inner end of the positioning notch (8) is provided with a fixing rod (7), and further comprises: An energy-saving component is used to reduce internal friction loss when a cylinder (3) pushes a push rod (4) to move. The energy-saving component comprises an air bin (10) and an oil bin (12). A sealing ladder column (9) is provided between the air bin (10) and the oil bin (12). The outer end of the cylinder (3) is connected to an air injection pipe (11). The upper end of the oil bin (12) is provided with an oil injection pipe (13) and an oil pressure pipe (15). A linkage spring (14) is provided between the oil injection pipe (13) and the oil pressure pipe (15). The upper end of the oil injection pipe (13) is provided with a linkage cylinder. An oil injection port (17) is provided between the oil bin (12) and the oil pressure pipe (15).

2. A pneumatic drive structure for a quick-opening pull plate according to claim 1, characterized in that: The cross-sectional size of the air bin (10) end of the sealing ladder column (9) is larger than the cross-sectional size of the oil bin (12) end, and the air bin (10) end of the sealing ladder column (9) is wrapped with a sealing ring, the outer end of the air bin (10) is movably connected to the air injection pipe (11), and the upper end of the oil bin (12) is connected to the oil pressure pipe (15).

3. A pneumatic drive structure for quick-opening pull plates according to claim 2, characterized in that: The oil filling pipe (13) slides up and down along the oil pressure pipe (15), the linkage spring (14) is wrapped around the outer end of the oil filling pipe (13), the upper end of the oil filling pipe (13) slides up and down along the linkage cylinder, and the linkage cylinder is threadedly connected to the upper end of the pull plate trolley seat (1).

4. A pneumatic drive structure for quick-opening pull plates according to claim 3, characterized in that: The oil tank (12) and the oil pressure pipe (15) are connected in an opening and closing manner via an oil filling port (17).

5. The pneumatic drive structure for quick-opening pull plates according to claim 4, characterized in that: The inner end of the oil filling port (17) is provided with a linkage shaft (18), the outer end of the linkage shaft (18) is provided with a linkage spring (19), the outer end of the linkage spring (19) is provided with a movable plate (16), the outer end of the movable plate (16) is provided with a conical plate (20), the inner end of the oil tank (12) is provided with an elastic plate (22), one end of the elastic plate (22) is provided with a connecting shaft (21), the other end of the elastic plate (22) is provided with a positioning column (23) and a linkage slider (24), the inner end of the linkage slider (24) is provided with a linkage slide rod (26), the outer end of the linkage slide rod (26) is provided with a positioning spring, and the outer end of the positioning spring is provided with a linkage slide groove (25).

6. A pneumatic drive structure for quick-opening pull plates according to claim 5, characterized in that: The linkage shaft (18) is fixed to the inner surface of one end of the oil filling port (17), the linkage ruler spring (19) is wrapped around the outer end of the linkage shaft (18), one end of the linkage ruler spring (19) is fixedly connected to the movable plate (16), and the other end of the linkage ruler spring (19) is movably connected to the linkage shaft (18).

7. A pneumatic drive structure for a quick-opening pull plate according to claim 6, characterized in that: One end of the movable plate (16) is sleeved on the outer end of the linkage shaft (18), and the other end of the movable plate (16) has a trapezoidal cross-section that is narrow on the left and wide on the right. The narrow end of the movable plate (16) contacts the outer end of the conical plate (20), and the conical plate (20) is fixed to the inner surface of the other end of the oil filling port (17). The conical plate (20) is made of high and low temperature resistant silicone material.

8. The pneumatic drive structure for quick-opening pull plates according to claim 7, characterized in that: One end of the elastic plate (22) is penetrated by the connecting shaft (21), and the other end of the elastic plate (22) is penetrated by a positioning column (23). The positioning column (23) is fixed to the inner surface of the right end of the oil tank (12). The number of the positioning columns (23) is set to two, and the two positioning columns (23) are respectively fixed to the front and rear ends of one side of the elastic plate (22).

9. A pneumatic drive structure for a quick-opening pull plate according to claim 8, characterized in that: The linkage slider (24) is fixed on the central outer surface of the elastic plate (22), the linkage slider (24) slides up and down along the linkage slide groove (25), the linkage slide rod (26) penetrates the upper and lower outer surfaces of the linkage slider (24), and the positioning spring is wrapped around the outer end of the linkage slide rod (26).

10. A pneumatic drive structure for quick-opening pull plates according to claim 9, characterized in that The fixing rod (7) is fixed to the rear end of the push rod (4), the plate pulling claw (2) is rotatably connected to the outer end of the fixing rod (7), and the positioning notch (8) runs through the outer surfaces of the front and rear ends of the plate pulling claw (2).

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