Auxiliary device of lipidosome extruder pneumatically pushed at constant temperature through electric heating

Abstract

The utility model discloses an auxiliary device of an electric heating constant-temperature pneumatically-pushed liposome extruder, which relates to the technical field of filters and comprises a box body, a pneumatic pushing mechanism is arranged in the box body, a temperature control mechanism is arranged on the surface of the box body, and the temperature control mechanism comprises a supporting column. The supporting column is fixedly installed in the box body, a heating table is fixedly installed on a top pipe of the supporting column, a limiting rod is fixedly installed on the surface of the heating table, and a fixing base is movably installed on the surface of the limiting rod. The fixing seat is aligned with the limiting rod on the surface of the heating table, so that the fixing seat cannot move during use, the heating table can heat the extruder and keep constant temperature, a sample can keep certain flowability, the extrusion efficiency is improved, meanwhile, a certain gap is reserved between the heating table and the box body, and the heating table is convenient to use. The temperature of the heating table cannot be conducted to the box body, the safety of the device is guaranteed, and the adaptability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to an auxiliary device of an electrothermal constant temperature pneumatically driven liposome extruder. Background Art

[0002] A liposome extruder, also known as a liposome extruder, uses a power supply to generate a certain amount of pressure to squeeze the sample through a stainless steel microporous filter plate and a polycarbonate filter membrane. The resulting particle size distribution of the extruded sample is uniform and can reach the nanometer level. Currently, manual extruders on the market use a sealed glass syringe and use manual push to provide power to force the material through the polycarbonate filter membrane inside the main body, thereby obtaining uniform liposomes, nanoparticles, etc.

[0003] Patent publication number CN218900953U discloses a liposome extruder based on bidirectional push of a cylinder, including a base plate, a pressure reducing valve, a hand valve, a cylinder, a base, an extruder body, a syringe, and an trachea. The upper part is equipped with a pressure reducing valve, a hand valve and a cylinder. The cylinder is equipped with a base, an extruder body, and a syringe. The inlet of the pressure reducing valve is connected to the air source through an trachea, and the outlet is connected to the inlet of the hand valve through an trachea. Blocks are provided at both ends of the cylinder, and a fine-tuning knob is provided on the block. The base is fixed on the cylinder and is provided with two vertical clamps. The extruder body is placed on the base, and its two ends are connected to two syringes.

[0004] In order to solve the problem of how to obtain uniform liposomes and nanoparticles, the existing technology uses an adjustable pressure reducing valve knob to control the internal pressure of the system, and adjusts the cylinder piston rod running speed by adjusting the throttle valve at the cylinder inlet. The hand switch of the hand valve is flipped to one side, one air flow channel is intake, and the other channel is exhaust. The cylinder piston rod moves to that side, and the syringe push rod containing the sample is pushed. However, there is a risk that the syringe housing may rupture, the syringe push rod may break, or the syringe needle may be damaged due to uneven force, which may lead to liposome leakage and instrument damage. Utility Model Content

[0005] The purpose of the utility model is to provide an auxiliary device for a liposome extruder driven by electric heating constant temperature and pneumatic driving, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The invention discloses an auxiliary device for an electrothermal constant temperature pneumatically driven liposome extruder, comprising a box body, a pneumatic driving mechanism is arranged inside the box body, and a temperature control mechanism is arranged on the surface of the box body.

[0008] The temperature control mechanism includes a support column, which is fixedly installed inside the box. The top pipe of the support column is fixedly installed with a heating platform. A limit rod is fixedly installed on the surface of the heating platform. A fixed seat is movably installed on the surface of the limit rod. The surface of the fixed seat is provided with a groove.

[0009] A further improvement of the technical solution of the present utility model is that the temperature control mechanism also includes a fixing rod, which is fixedly installed on the surface of the fixing seat. There are two fixing rods, which are evenly distributed on one side of the groove. The surface of the fixing rod is rotatably connected with a paddle.

[0010] A further improvement of the technical solution of the present utility model is that the pneumatic propulsion mechanism includes a shell, the shell is fixedly installed inside the box, a cylinder is provided inside the shell, a left air inlet is provided on the surface of the shell, and a right air inlet is provided on the surface of the shell, and the left air inlet and the right air inlet pass through the cylinder.

[0011] A further improvement of the technical solution of the present utility model is that a left push rod is movably connected inside the shell, a piston is fixedly installed on one end of the left push rod, the piston is slidably connected to the inside of the shell, and the piston is adapted to the cylinder inside the shell.

[0012] A further improvement of the technical solution of the present utility model is that: a right push rod is fixedly installed on the surface of the piston, and the right push rod is slidably connected to the inside of the shell, and a fixing block is fixedly installed on the surface of the right push rod, and the internal thread of the fixing block is connected with a bolt, and one end of the bolt is fixedly installed with a knob nut, and the top of the fixing block is fixedly installed with a support plate, and the surface of the support plate is fixedly installed with a push plate, and the surface of the push plate is provided with a fixing hole.

[0013] A further improvement of the technical solution of the present utility model is that the pneumatic propulsion mechanism further includes an exhaust valve, the exhaust valve is fixedly mounted on the surface of the shell, and an air inlet pipe is fixedly mounted on the surface of the exhaust valve.

[0014] A further improvement of the technical solution of the present utility model is that: a gas pressure display gauge is fixedly installed on the surface of the box, a reversing lever is fixedly installed on the surface of the box, the reversing lever is electrically connected to the pneumatic driving mechanism, a power switch is fixedly installed on the surface of the box, a cover body is movably connected to the surface of the box, a support platform is fixedly installed inside the box, the support platform is fixedly installed on the bottom end of the support column, a three-core power plug male is fixedly installed on the surface of the box, an air inlet connector is fixedly installed on the surface of the box, a pressure regulating knob is rotatably connected to the surface of the box, four foot pads are fixedly installed on the bottom end of the box, and the foot pads are evenly distributed on the bottom end of the box.

[0015] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0016] 1. The utility model provides an auxiliary device for an electrothermal constant temperature pneumatically driven liposome extruder, which adopts the cooperation of a support platform, a support column, a heating platform, a limit rod, a fixing seat, a groove, a paddle, and a fixing rod. The support column is fixed on the support platform, the fixing seat is aligned with the limit rod on the surface of the heating platform, the fixing seat is placed on the heating platform so that the fixing seat does not move during use, the extruder is placed in the groove, and the paddle on the surface of the fixing rod is rotated to further fix the extruder. The heating platform can heat the extruder and maintain a constant temperature, so that the fluidity of the liposome within the phase transition temperature can be improved, the extrusion efficiency can be improved, and the heating A certain gap is left between the stage and the box body so that the temperature of the heating stage will not be transmitted to the box body, thereby ensuring the safety of the device. The device can accurately control the phase transition temperature of the liposome during the extrusion process, improve its fluidity, and better assist the experimenter in understanding the state of the liposome in real time during the experiment. The base of the liposome extruder is fixed with bolts or positioning pins, which can prevent damage to the instrument caused by displacement of the liposome extruder body during the auxiliary operation. The base of the liposome extruder is fixed with bolts or positioning pins, which can make the liposome extruder more quickly disassembled and assembled. It has a simple structure, is reliable, and improves the adaptability of the device.

[0017] 2. The utility model provides an auxiliary device for an electrothermal constant temperature pneumatically driven liposome extruder, which adopts a housing, a left push rod, a piston, an exhaust valve, an air inlet pipe, a support plate, a knob nut, a bolt, a push plate, a fixing hole, a left air inlet, a right air inlet, a right push rod, and a fixing block. The tail end of the extruder is fixed through the fixing hole. When in use, gas enters the left air inlet from the air inlet pipe, and the gas fills the cylinder to push the piston to the right. At this time, the piston pulls the left push rod, so that the left push rod drives the fixing block, and the fixing block drives the support plate. At this time, the left push plate pushes the extruder, and at the same time, the piston pushes the right push rod, so that the right push plate moves away from the extruder. At the right end of the extruder, when gas enters the right air inlet from the air inlet pipe, the gas fills the cylinder and pushes the piston to the left. At this time, the piston pulls the right push rod, causing the right push plate to push the extruder. At the same time, the piston pushes the left push rod, and the left push plate moves away from the left end of the extruder. When the pushing distance of the fixed hole needs to be adjusted, the knob nut is turned to adjust the distance between the bolt and the shell. At the same time, the gas in the cylinder can be discharged through the exhaust valve. During use, the two syringes of the device are always in a state of one pushing and one pulling, reducing the pressure during the syringe advancement process, thereby increasing the service life of the glass syringe and push rod of the liposome extruder and reducing the risk of liposome leakage. The risk of rupture of the polycarbonate filter membrane is reduced, and the adaptability of the device is improved.

[0018] 3. The utility model provides an auxiliary device for an electric constant temperature pneumatically driven liposome extruder, which adopts the cooperation of an exhaust valve, a gas pressure display meter, a support platform, a reversing lever, a power switch, a three-core power plug male, an air inlet connector, a pressure regulating knob, and a cover body. By fixing the temperature control mechanism on the support platform, the temperature control mechanism can play the role of shock insulation and heat isolation when in use. The interlayer design separates the heating unit from the control unit, thereby reducing the operating environment temperature of the control unit, thereby improving the service life of the machine and the accuracy of control. In addition, the surface of the box body 1 is provided with multiple heat dissipation holes, which makes the use of components more stable. Connect the three-core power plug male to the power supply, turn on the power switch, and rotate the pressure regulating knob counterclockwise to the end. When the temperature needs to be adjusted, set the temperature in advance and wait for the temperature to reach the set point. 3 degrees constant temperature. At this time, connect the air inlet connector to the external air pipe and provide compressed air. When the pressure regulating knob is rotated clockwise, the gas pressure display gauge can show the current pressure. At this time, toggle the reversing lever to observe whether the thrust is sufficient. When the thrust is insufficient, rotate the pressure regulating knob to gradually increase the pressure. After the pressure is adjusted, toggle the reversing lever for continuous extrusion. After the extrusion is completed, adjust the pressure regulating knob to zero pressure first, and then remove the extruder. When it is necessary to exhaust the pneumatic push mechanism, open the cover and toggle the exhaust valve for exhaust. The foot pad can make the box more stable. The reversing lever is controlled by a three-position five-way self-resetting hand-operated valve, which can be operated and stopped when leaving the hand, protecting the liposome extruder from instrument damage caused by invalid operation and protecting the operator's personal safety, thereby improving the adaptability of the device.

[0019] 4. The utility model adopts a three-position five-way self-resetting hand-operated valve, which can operate when operated and stop when the hand is released, protecting the liposome extruder from damage caused by invalid operation and protecting the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the air intake interface of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the temperature controller of the utility model;

[0023] Figure 4 This is a schematic structural diagram of the support column of the utility model;

[0024] Figure 5 This is a structural diagram of a cross-sectional view of the pneumatic propulsion mechanism of the present invention.

[0025] In the figure: 1. Box body; 11. Gas pressure display gauge; 12. Support platform; 13. Reversing lever; 14. Power switch; 15. Three-pin power plug male end; 16. Air inlet connector; 17. Pressure regulating knob; 18. Cover; 19. Foot pad; 2. Pneumatic push mechanism; 21. Housing; 22. Left push rod; 23. Piston; 24. Exhaust valve; 25. Air inlet pipe; 26. Support plate; 27. Knob nut; 28. Bolt; 29. ​​Push plate; 210. Fixing hole; 211. Left air inlet; 212. Right air inlet; 213. Right push rod; 214. Fixing block; 3. Temperature control mechanism; 31. Support column; 32. Heating platform; 33. Limit rod; 34. Fixing seat; 35. Groove; 36. Paddle; 37. Fixing rod. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the embodiments:

[0027] Example 1

[0028] like Figure 1-5 As shown, the utility model provides an auxiliary device for an electrothermal constant temperature pneumatically driven liposome extruder, comprising a box body 1, a pneumatic driving mechanism 2 is provided inside the box body 1, a temperature control mechanism 3 is provided on the surface of the box body 1, and the temperature control mechanism 3 comprises a support column 31, the support column 31 is fixedly installed inside the box body 1, a heating platform 32 is fixedly installed on the top tube of the support column 31, a limiting rod 33 is fixedly installed on the surface of the heating platform 32, a fixing seat 34 is movably installed on the surface of the limiting rod 33, and a groove 35 is provided on the surface of the fixing seat 34, and the temperature control mechanism 3 also comprises a fixing rod 37, which is fixedly installed on the surface of the fixing seat 34, and there are two fixing rods 37, which are evenly distributed on one side of the groove 35, and a paddle 36 is rotatably connected to the surface of the fixing rod 37.

[0029] In this embodiment, the support column 31 is fixed on the support platform 12, the fixing seat 34 is aligned with the limit rod 33 on the surface of the heating platform 32, and the fixing seat 34 is placed on the heating platform so that the fixing seat 34 will not move during use. The extruder is placed in the groove 35, and the paddle 36 on the surface of the fixing rod 37 is rotated to further fix the extruder. The heating platform can heat the extruder and maintain a constant temperature, so that the fluidity of the liposomes within the phase change temperature can be improved, and the extrusion efficiency can be improved. At the same time, a certain gap is left between the heating platform 32 and the box body 1, so that the temperature of the heating platform 32 will not be transmitted to the box body 1, thereby ensuring the safety of the device and improving the adaptability of the device.

[0030] Example 2

[0031] like Figure 1-5As shown, on the basis of embodiment 1, the utility model provides a technical solution: preferably, the pneumatic propulsion mechanism 2 includes a shell 21, the shell 21 is fixedly installed inside the box body 1, a cylinder is provided inside the shell 21, a left air inlet 211 is provided on the surface of the shell 21, a right air inlet 212 is provided on the surface of the shell 21, the left air inlet 211 and the right air inlet 212 pass through the cylinder, the inside of the shell 21 is movably connected with a left push rod 22, one end of the left push rod 22 is fixedly installed with a piston 23, the piston 23 is slidably connected to the inside of the shell 21, the piston 23 is adapted to the cylinder inside the shell 21, and the piston 2 3 is fixedly mounted with a right push rod 213 on the surface, and the right push rod 213 is slidably connected to the inside of the shell 21. A fixing block 214 is fixedly mounted on the surface of the right push rod 213. The internal thread of the fixing block 214 is connected with a bolt 28, and a knob nut 27 is fixedly mounted on one end of the bolt 28. A support plate 26 is fixedly mounted on the top of the fixing block 214, and a push plate 29 is fixedly mounted on the surface of the support plate 26. A fixing hole 210 is provided on the surface of the push plate 29. The pneumatic pushing mechanism 2 also includes an exhaust valve 24, which is fixedly mounted on the surface of the shell 21, and an air inlet pipe 25 is fixedly mounted on the surface of the exhaust valve 24.

[0032] In this embodiment, the tail end of the extruder is fixed by the fixing hole 210. When in use, the gas enters the left air inlet 211 from the air inlet pipe 25, and the gas fills the cylinder to push the piston 23 to move to the right. At this time, the piston 23 pulls the left push rod 22, so that the left push rod 22 drives the fixed block 214, and the fixed block 214 drives the support plate 26. At this time, the left push plate 29 pushes the extruder, and at the same time, the piston 23 pushes the right push rod 213, so that the right push plate 29 is away from the right end of the extruder. When the gas enters The air pipe 25 enters the right air inlet 212, the gas fills the cylinder and pushes the piston 23 to move to the left. At this time, the piston 23 pulls the right push rod 213, so that the right push plate 29 pushes the extruder. At the same time, the piston 23 pushes the left push rod 22, and the left push plate 29 moves away from the left end of the extruder. When it is necessary to adjust the pushing distance of the fixing hole 210, the knob nut 27 is turned to adjust the distance between the bolt 28 and the housing 21. At the same time, the gas in the cylinder can be discharged through the exhaust valve 24, thereby improving the adaptability of the device.

[0033] Example 3

[0034] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a gas pressure display gauge 11 is fixedly installed on the surface of the box body 1, a reversing lever 13 is fixedly installed on the surface of the box body 1, the reversing lever 13 is electrically connected to the pneumatic propulsion mechanism 2, a power switch 14 is fixedly installed on the surface of the box body 1, a cover body 18 is movably connected to the surface of the box body 1, a support platform 12 is fixedly installed inside the box body 1, the support platform 12 is fixedly installed on the bottom end of the support column 31, a three-core power plug male head 15 is fixedly installed on the surface of the box body 1, an air inlet connector 16 is fixedly installed on the surface of the box body 1, a pressure regulating knob 17 is rotatably connected to the surface of the box body 1, and four foot pads 19 are fixedly installed on the bottom end of the box body 1, and the foot pads 19 are evenly distributed on the bottom end of the box body 1.

[0035] In this embodiment, by fixing the temperature control mechanism 3 on the support platform 12, the temperature control mechanism 3 can play the role of shock insulation and heat insulation when in use, and the surface of the box body 1 is provided with multiple heat dissipation holes, which makes the components more stable to use. The surface of 1 is provided with multiple heat dissipation holes. The three-core power plug male 15 is connected to the power supply, turn on the power switch 14, and rotate the voltage adjustment knob 17 counterclockwise to the bottom. When the temperature needs to be adjusted, set the temperature in advance and wait for the temperature to be constant. At this time, connect the air inlet joint 16 to the external air pipe and provide compressed air. When the air is in the direction of the air inlet, the air inlet is connected to the external air pipe. When the pressure regulating knob 17 is rotated clockwise, the gas pressure display gauge 11 can display the current pressure. At this time, turn the reversing lever 13 to observe whether the thrust is sufficient. When the thrust is insufficient, rotate the pressure regulating knob 17 to gradually increase the pressure. After the pressure is adjusted, turn the reversing lever 13 to continuously extrude. After the extrusion is completed, adjust the pressure regulating knob 17 to zero pressure first, and then remove the extruder. When it is necessary to exhaust 2, when it is necessary to exhaust the pneumatic propulsion mechanism 2, open the cover 18 to toggle the exhaust valve 24 for exhaust, and the foot pad 19 can make the box body 1 more stable, thereby improving the adaptability of the device.

[0036] The working principle of the auxiliary device of the electrothermal constant temperature pneumatically driven liposome extruder is described in detail below.

[0037] like Figure 1-5As shown, by fixing the temperature control mechanism 3 on the support platform 12, the temperature control mechanism 3 can play a role of shock insulation when in use, and can isolate heat, and the foot pad 19 can make the box 1 more stable, align the fixing seat 34 with the limit rod 33 on the surface of the heating platform 32, and place the fixing seat 34 on the heating platform so that the fixing seat 34 will not move when in use, place the extruder in the groove 35, and rotate the paddle 36 on the surface of the fixing rod 37 to further fix the extruder. When the temperature needs to be adjusted, the temperature is set in advance, and the heating platform can adjust the temperature of the extruder. Heating and maintaining a constant temperature can improve the fluidity of liposomes within the phase change temperature and improve the extrusion efficiency. At the same time, a certain gap is left between the heating platform 32 and the box body 1 so that the temperature of the heating platform 32 will not be transmitted to the box body 1, ensuring the safety of the device. Connect the three-core power plug male end 15 to the power supply, turn on the power switch 14, and rotate the pressure regulating knob 17 counterclockwise to the bottom. At this time, connect the air inlet connector 16 to the external air pipe and provide compressed air. When the pressure regulating knob 17 is rotated clockwise, the gas pressure display meter 11 can display the current pressure. Observe whether the thrust is sufficient. If the thrust is insufficient, rotate the pressure regulating knob 17. The knob 17 gradually increases the pressure. After the pressure is adjusted, the reversing lever 13 is toggled to continuously extrude. When in use, the reversing lever 13 is toggled, and the gas enters the left air inlet 211 from the air inlet pipe 25. The gas fills the cylinder and pushes the piston 23 to move to the right. At this time, the piston 23 pulls the left push rod 22, so that the left push rod 22 drives the fixed block 214, and the fixed block 214 drives the support plate 26. At this time, the left push plate 29 pushes the extruder, and at the same time, the piston 23 pushes the right push rod 213, so that the right push plate 29 is away from the right end of the extruder. When the gas enters the right air inlet 212 from the air inlet pipe 25, the gas fills the cylinder. The cylinder pushes the piston 23 to the left. At this time, the piston 23 pulls the right push rod 213, so that the right push plate 29 pushes the extruder. At the same time, the piston 23 pushes the left push rod 22, and the left push plate 29 is away from the left end of the extruder. When it is necessary to adjust the pushing distance of the fixing hole 210, turn the knob nut 27 to adjust the distance between the bolt 28 and the housing 21. When it is necessary to exhaust 2 when the pneumatic pushing mechanism 2 needs to be exhausted, open the cover 18 to dial the exhaust valve 24 for exhaust. After extrusion is completed, adjust the pressure regulating knob 17 to zero pressure first, and then remove the extruder, which improves the adaptability of the device.

[0038] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An auxiliary device for an electrothermal constant temperature pneumatically driven liposome extruder, comprising a housing (1), characterized in that: A pneumatic propulsion mechanism (2) is provided inside the box (1), and a temperature control mechanism (3) is provided on the surface of the box (1); The temperature control mechanism (3) comprises a support column (31), the support column (31) is fixedly mounted inside the box (1), a heating platform (32) is fixedly mounted on the top pipe of the support column (31), a limiting rod (33) is fixedly mounted on the surface of the heating platform (32), a fixing seat (34) is movably mounted on the surface of the limiting rod (33), and a groove (35) is provided on the surface of the fixing seat (34).

2. The auxiliary device of the electrothermal constant temperature pneumatically driven liposome extruder according to claim 1, characterized in that: The temperature control mechanism (3) further comprises a fixing rod (37), wherein the fixing rod (37) is fixedly mounted on the surface of the fixing seat (34), the number of the fixing rods (37) is two, and the fixing rods (37) are evenly distributed on one side of the groove (35), and the surface of the fixing rod (37) is rotatably connected to a paddle (36).

3. The auxiliary device of the electrothermal constant temperature pneumatically driven liposome extruder according to claim 1, characterized in that: The pneumatic propulsion mechanism (2) comprises a shell (21), the shell (21) being fixedly mounted inside the box (1), a cylinder being provided inside the shell (21), a left air inlet (211) being provided on the surface of the shell (21), and a right air inlet (212) being provided on the surface of the shell (21), the left air inlet (211) and the right air inlet (212) penetrating the cylinder.

4. The auxiliary device of the electrothermal constant temperature pneumatically driven liposome extruder according to claim 3, characterized in that: The housing (21) is movably connected to a left push rod (22), one end of which is fixedly mounted with a piston (23). The piston (23) is slidably connected to the interior of the housing (21), and the piston (23) is adapted to the cylinder inside the housing (21).

5. The auxiliary device of the electrothermal constant temperature pneumatically driven liposome extruder according to claim 4, characterized in that: A right push rod (213) is fixedly mounted on the surface of the piston (23), and the right push rod (213) is slidably connected to the inside of the housing (21). A fixed block (214) is fixedly mounted on the surface of the right push rod (213), and the internal thread of the fixed block (214) is connected to a bolt (28), and one end of the bolt (28) is fixedly mounted with a knob nut (27). A support plate (26) is fixedly mounted on the top of the fixed block (214), and a push plate (29) is fixedly mounted on the surface of the support plate (26), and a fixing hole (210) is provided on the surface of the push plate (29).

6. The auxiliary device of the electrothermal constant temperature pneumatically driven liposome extruder according to claim 4, characterized in that: The pneumatic propulsion mechanism (2) further comprises an exhaust valve (24), the exhaust valve (24) being fixedly mounted on the surface of the housing (21), and an air inlet pipe (25) being fixedly mounted on the surface of the exhaust valve (24).

7. The auxiliary device of the electrothermal constant temperature pneumatically driven liposome extruder according to claim 1, characterized in that: A gas pressure display gauge (11) is fixedly mounted on the surface of the box (1), a reversing lever (13) is fixedly mounted on the surface of the box (1), and the reversing lever (13) is electrically connected to the pneumatic propulsion mechanism (2). A power switch (14) is fixedly mounted on the surface of the box (1), and a cover (18) is movably connected to the surface of the box (1). A support platform (12) is fixedly mounted inside the box (1), and the support platform (12) is fixedly mounted on the bottom end of the support column (31). A three-core power plug male head (15) is fixedly mounted on the surface of the box (1), an air inlet connector (16) is fixedly mounted on the surface of the box (1), and a pressure regulating knob (17) is rotatably connected to the surface of the box (1). Four foot pads (19) are fixedly mounted on the bottom end of the box (1), and the foot pads (19) are evenly distributed on the bottom end of the box (1).

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