CN111271247A - A safe and stable air compressor - Google Patents

Abstract

The invention discloses a safe and stable air compressor, which comprises an equipment box, a piston cylinder arranged on the equipment box and an air storage box arranged on one side of the equipment box, wherein the air storage box is connected with the piston cylinder through an air delivery pipe; a motor bin is further arranged in the equipment box, a driving motor for driving the crankshaft to rotate is arranged in the motor bin, a cover plate is arranged on one side of the motor bin and detachably connected with the motor bin, a fixed rod is arranged on the side wall of the equipment box, and a limiting assembly is arranged above the fixed rod; the cover plate is detachably connected with the motor bin, so that the driving motor can be conveniently taken out of the motor bin, and the driving motor is convenient to overhaul and replace; through the cooperation of spacing subassembly and dead lever, increase the cooperation effect in apron and motor storehouse, increase the reliability of equipment.

Description

A safe and stable air compressor

technical field

The invention belongs to the technical field of air compressors, and in particular relates to a safe and stable air compressor.

Background technique

At present, in the field of public transportation, the share of new energy vehicles is getting higher and higher. There are many pneumatic components in new energy vehicles, so air compressors are needed to provide air sources. The current air compressors mainly include motors, boxes, cylinders and missing covers. In the new energy vehicle, the air compressor usually uses the motor as the driving part. The motor needs regular maintenance and repair in the long-term use. When the motor in the air compressor is repaired, it is inconvenient to remove the motor from the air compressor. It is inconvenient to take out and disassemble the motor, which affects the service life of the air compressor.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the present invention provides a safe and stable air compressor.

In order to achieve the above purpose, the present invention adopts the following technical solutions: a safe and stable air compressor, comprising an equipment box, a piston cylinder arranged on the equipment box and an air storage box arranged on one side of the equipment box, so The air storage box is connected with the piston cylinder through a gas delivery pipe, a movable cavity is arranged in the equipment box, a crankshaft is arranged in the movable cavity, and a piston assembly is arranged on the crankshaft; There is a motor compartment, the motor compartment is provided with a drive motor for driving the crankshaft to rotate, a cover plate is arranged on one side of the motor compartment, and the cover plate is detachably connected to the motor compartment, and the equipment box side is provided with a cover plate. There is a fixing rod on the wall, and a limit component is arranged above the fixing rod; through the detachable connection between the cover plate and the motor compartment, the cover plate can be easily removed from the motor compartment, so as to take the drive motor out of the motor compartment , which is convenient for maintenance and replacement of the drive motor; through the cooperation of the limit component and the fixing rod, the cooperation effect of the cover plate and the motor compartment is increased, so that the cover plate is stably fixed in the motor compartment, which has a fixed effect on the drive motor and increases the equipment. reliability.

Preferably, the limiting assembly includes a first fixing block arranged on the side wall of the equipment box, a limiting block arranged on the first fixing block, and a fixing block arranged on the first fixing block and the A limit plate matched with a fixed rod, the limit plate is provided with a first limit groove matched with the limit block; the limit plate and the fixed rod cooperate with each other to limit the fixed rod It can make the fixed cover stably cooperate with the cover plate, provide support for the cover plate, increase the cooperation effect between the cover plate and the motor compartment, and enable the drive motor to work stably in the motor compartment.

Preferably, the fixing rod is movably connected to the side wall of the equipment box, one end of the fixing rod is provided with a limiting rod, and the first fixing block is provided with a second limiting rod matched with the limiting rod Through the mutual cooperation between the limit rod and the second limit groove, the position of the fixed rod is limited, which is convenient for the limit plate and the fixed rod to form cooperation, so as to play a positioning role for the fixed rod, and increase the fixed rod to the cover plate. The fixed effect improves the stability of the drive motor.

Preferably, a connecting block is provided on the top of the limiting block, a first connecting shaft is provided on the connecting block, and a movable rod is sleeved on the first connecting shaft; The third limit slot matched with the movable rod; through the mutual cooperation between the third limit slot and the movable rod, the cooperation effect of the limit plate and the first fixed block is increased, so that the limit board is more stably formed with the first fixed block Cooperate, play a good supporting role for the cover plate and improve the stability of the motor.

Preferably, the number of the movable rods is four, and the two adjacent movable rods are movably connected, the movable rods are provided with installation grooves, and the installation grooves are provided with limit springs; when the limit plate is assembled When the first fixed block is matched with the first fixed block, align the first limit slot with the movable rod and press down, the movable rod is forced to rotate around the connection point, and the limit spring is compressed to make the movable rod pass through. It is set in the first limit slot, and then the movable rod pushes the movable rod to move to both sides under the action of the limit spring, so that the side wall of the movable rod is in contact with the inner wall of the third limit slot, and the limit plate is fixed. The limiting plate is prevented from coming out of the first fixing block, and the limiting effect of the limiting plate on the fixing rod is increased.

Preferably, the equipment box is provided with a cooling liquid tank, the outer side of the piston cylinder is provided with a cooling tank, one side of the cooling liquid tank is provided with a liquid outlet pipe and a liquid inlet pipe, and the cooling liquid tank is provided with a rotating The rotating wheel is arranged on one side of the liquid outlet pipe and the liquid inlet pipe, and the driving motor can drive the rotating wheel to rotate; the cooling liquid in the cooling liquid tank can cool the piston cylinder, To avoid the temperature of the piston cylinder being too large to dissipate when the piston moves in the piston cylinder, it protects the equipment; the crankshaft is driven to rotate by the driving motor and the rotating wheel is driven to rotate, and the rotating wheel drives the cooling in the coolant tank when rotating. The liquid flows, so that the cooling liquid in the cooling liquid tank is pushed into the liquid outlet pipe under the action of the rotating wheel, and the cooling liquid is transported into the cooling tank, so that the cooling liquid in the cooling tank is in a flowing state, and the cooling of the piston cylinder is improved. Effect.

Preferably, the piston assembly includes a piston rod connected to the crankshaft, a piston head movably connected to the piston rod, an outer casing disposed outside the piston head, and a casing for connecting the outer casing and the The connecting spring of the piston head; the diameter of the piston cylinder is larger than the diameter of the piston head. Through the contact between the outer casing and the piston cylinder, the piston assembly and the piston cylinder form a sealing fit, so that the piston assembly can change the air pressure in the piston cylinder when it moves in the piston cylinder. , for the purpose of compressing air; the outer casing protects the piston head and reduces the wear of the piston head.

The invention has the following advantages: through the detachable connection between the cover plate and the motor compartment, the cover plate can be easily removed from the motor compartment, so that the drive motor can be taken out from the motor compartment, which is convenient for maintenance and replacement of the drive motor; The cooperation between the position component and the fixing rod increases the cooperation effect between the cover plate and the motor compartment, so that the cover plate is stably fixed in the motor compartment, which fixes the driving motor and increases the reliability of the equipment.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

Figure 2 is a front view of the present invention.

FIG. 3 is an enlarged view of part A in FIG. 2 .

4 is a schematic cross-sectional view of the present invention.

Figure 5 is a right side view of the present invention.

FIG. 6 is a schematic structural diagram of the limiting assembly of the present invention.

FIG. 7 is a schematic diagram of the cooperation of the limiting assembly of the present invention.

FIG. 8 is a schematic structural diagram of the first fixing block of the present invention.

FIG. 9 is a schematic structural diagram of the limiting plate of the present invention.

FIG. 10 is a schematic diagram of the cooperation between the crankshaft and the piston assembly of the present invention.

FIG. 11 is a schematic structural diagram of the second transmission shaft of the present invention.

FIG. 12 is a schematic structural diagram of the fixing block of the present invention.

FIG. 13 is a schematic structural diagram of the piston assembly of the present invention.

14 is a schematic cross-sectional view of the piston assembly of the present invention.

FIG. 15 is an enlarged view of B in FIG. 14 .

FIG. 16 is a schematic view of the structure of the connecting shaft of the present invention.

Detailed ways

In order for those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figures 1-16, a safe and stable air compressor includes an equipment box 1, a piston cylinder 14 arranged on the equipment box 1 and an air storage box 4 arranged on one side of the equipment box 1, The air storage tank 4 is connected with the piston cylinder 14 through an air delivery pipe 41, a first one-way valve is arranged in the gas delivery pipe, and the gas delivery pipe communicates with the side wall of the top of the piston cylinder; there are two piston cylinders, and the top of the piston cylinder is provided with There is an intake pipe 141, a second one-way valve is arranged in the intake pipe, a movable cavity 11 is arranged in the equipment box 1, a crankshaft 111 is arranged in the movable cavity 11, and a piston assembly 112 is arranged on the crankshaft 111; The equipment box 1 is also provided with a motor compartment 13. The motor compartment 13 is provided with a drive motor 131 for driving the crankshaft 111 to rotate. The equipment box 1 is provided with a coolant tank 2, and the piston cylinder 14 There is a cooling box 3 on the outside, a cooling cavity 31 is arranged in the cooling box, one side of the cooling cavity is in contact with the side wall of the piston cylinder, and one side of the cooling liquid tank 2 is provided with a liquid outlet pipe 21 and a liquid inlet pipe 22, cooling The cavity is connected with the liquid outlet pipe and the liquid inlet pipe respectively. The cooling liquid tank 2 is provided with a rotating wheel 232, and the rotating wheel 232 is arranged on one side of the liquid outlet pipe 21 and the liquid inlet pipe 22. The driving motor 131 can drive the rotating wheel 232 to rotate. The rotating wheel is on the same level as the liquid inlet pipe and the liquid outlet pipe. The rotating wheel drives the cooling liquid in the cooling liquid tank to rotate when rotating. Under the action of the rotating wheel , push the cooling liquid into the liquid outlet pipe, so that the cooling liquid enters the cooling cavity and contacts the side wall of the piston cylinder, which cools the piston cylinder; because the rotating wheel keeps rotating, the cooling liquid in the cooling liquid tank continues The cooling liquid in the cooling liquid tank continuously enters the cooling cavity, pushes the cooling liquid in the cooling cavity to move along the cooling cavity to the liquid inlet pipe, and returns to the cooling liquid tank through the liquid inlet pipe. Under the action of the rotating wheel, the returned coolant and the coolant in the coolant tank are mixed with each other, so that the returned coolant is quickly cooled and then transported to the cooling chamber again to cool the piston cylinder.

The motor compartment 13 is provided with a shock-absorbing component; a transmission compartment 12 is arranged between the movable chamber 11 and the motor compartment 13 , and a first transmission shaft 122 is arranged in the transmission compartment 12 , and the first transmission One end of the shaft 122 is fixedly connected with the crankshaft 111, and the other end is matched with the output shaft of the drive motor 131; the first drive shaft is rotatably connected to the inner wall of the drive compartment, and the first drive shaft is provided with a drive slot, which drives the motor. The output shaft of the motor is inserted into the transmission groove, and is in driving cooperation with the inner wall of the transmission groove, and the first transmission shaft is driven to rotate through the transmission cooperation between the output shaft of the driving motor and the transmission groove; The force on the output shaft of the drive motor protects the output shaft of the drive motor.

When the air compressor is working, the drive motor drives the first transmission shaft to rotate, so that the first transmission shaft drives the crankshaft to rotate, and through the cooperation between the crankshaft and the piston assembly, the rotation of the crankshaft is converted into the reciprocating motion of the piston assembly in the piston cylinder, When the piston assembly moves to the bottom of the piston cylinder, the air pressure in the piston cylinder decreases, the external air pressure is greater than the air pressure in the piston cylinder, and the second one-way valve opens to allow air to enter the piston cylinder; when the piston assembly moves to the top of the piston cylinder , the space in the piston cylinder is reduced, so that the air in the piston cylinder is compressed, the pressure in the piston cylinder is stronger than the external pressure, the first one-way valve is opened, and the gas in the piston cylinder is passed into the gas pipeline, through the gas storage The tank collects the compressed air and provides a compressed air source for the vehicle.

A cover plate 134 is provided on one side of the motor compartment 13, and the cover plate 134 is detachably connected to the motor compartment 13, and the detachable connection is a snap connection; a fixing rod 18 is arranged on the side wall of the equipment box 1 , the middle of the fixing rod 18 is hinged on the side wall of the equipment box 1, and the fixing rod is provided with a bump 181, which is easy to grasp the fixing rod for rotation through the bump, and a limit component is arranged above the fixing rod 18; After the drive motor is installed in the motor compartment, put the cover plate on the motor compartment to provide support for the motor and fix the drive motor in the motor compartment; after the cover plate is assembled, turn the fixing rod to make one end of the fixing rod Rotate to the back of the cover to provide support for the cover and prevent the drive motor from falling out of the motor compartment; the limit component acts as a limit for the fixing rod, preventing the fixing rod from rotating when providing support for the cover, increasing the fixed position The support effect of the rod on the cover plate increases the stability of the driving motor.

The limiting component includes a first fixing block 16 arranged on the side wall of the equipment box 1 , a limiting block 162 arranged on the first fixing block 16 , and a The limit plate 17 matched with the fixing rod 18 is provided with a first limit groove 171 matched with the limit block 162 on the limit plate 17; the limit plate is a U-shaped structure, and the limit plate When not in use, it can be directly removed from the side wall of the equipment box. The first fixing block is fixed on the side wall of the equipment box. The cross-section of the fixing rod is directly equal to the U-shaped opening of the limit plate; After the cover plate is matched, the limit plate is installed on the first fixing block, so that the limit block is inserted into the first limit slot, which has a fixed effect on the limit plate. The inner walls of the U-shaped two sides of the limit plate are fixed with The side walls of the plates are in contact with each other to limit the position of the fixed rod. The fixed rod cannot rotate around the hinge point under the action of the limit plate, so as to stably provide support for the cover plate and stably fix the drive motor in the motor compartment. Inside, increase the stability of the drive motor work.

One end of the fixing rod 18 is provided with a limiting rod, and the first fixing block 16 is provided with a second limiting groove 167 which is matched with the limiting rod; after the cover plate is placed on the motor compartment, it is rotated and fixed lever, so that the fixed rod is rotated into the position with the back of the cover plate, and the limit rod is rotated together with the fixed rod into the second limit groove until the limit rod rotates to contact with the inner wall of the second limit groove. Under the action of the limit slot, the limit rod cannot continue to rotate, so as to position the fixed rod, so that the fixed rod is in a vertical state to facilitate the cooperation with the limit plate, and the matching effect of the fixed rod and the limit plate is increased, so that the fixed rod can be fixed. The rod provides a stable support for the cover.

The top of the limiting block 162 is provided with a connecting block 165 , the connecting block 165 is provided with a first connecting shaft 166 , and a movable rod 161 is sleeved on the first connecting shaft 166 ; There is a third limit slot 172 matched with the movable rod 161; the cross section of the third limit slot is larger than that of the first limit slot, and the third limit slot is arranged above the first limit slot; the movable rod 161 There are four, and the two adjacent movable rods 161 are movably connected. The movable rods 161 are provided with installation grooves, and the installation grooves are provided with limit springs 163. The movable links are hinged, and the adjacent movable rods are hinged. The endpoints of the two movable rods are hinged to each other, and the hinge points of the movable rods are connected by the fixing bolt 164. When the limit spring is at the original length, the four movable rods are in a diamond-shaped structure; when the fixed plate is rotated to the position where the cover plate cooperates with each other Then, install the limit plate on the first fixed block, insert the first limit slot into the top of the rhombus formed by the movable rod, and the two movable rods at the top of the rhombus are in contact with the inner wall of the first limit slot, and the movable rod Press into the first limit slot, so that the movable rod rotates around the hinge point under the action of the first limit slot. At this time, the limit spring is compressed, and the middle position of the diamond shrinks inward, so that the first limit slot Enter the bottom of the rhombus; when the first limit slot passes through the middle of the rhombus, under the action of the limit spring, the middle of the rhombus begins to reset, so that the length of the middle of the rhombus is greater than the cross-sectional diameter of the first limit slot, so that the first limit The slot cannot come out of the rhombus formed by the movable rod, which can fix the limit plate, so that the limit plate and the fixed rod form a stable fit, which has a good supporting effect on the cover plate and increases the stability of the drive motor in the motor compartment. When the air compressor is removed and the motor needs to be repaired, the middle of the diamond is squeezed by external force to shrink the limit spring, thereby reducing the length of the middle of the diamond, and it is convenient to remove the limit plate from the first fixed plate. Then turn the fixing rod to disengage the fixing rod from the cover plate, which is convenient for removing the cover plate from the motor compartment, and finally remove the driving motor from the motor compartment, which is convenient for the maintenance and replacement of the motor.

The bottom surface of the rotating wheel 232 is provided with a second transmission shaft 23 , the second transmission shaft 23 is rotatably passed through the transmission compartment 12 , and the bottom of the second transmission shaft 23 is provided with a first bevel gear 231 , The first bevel gear 231 is in driving cooperation with the first transmission shaft 122 .

The first transmission shaft 122 is provided with a second bevel gear 1224 matched with the first bevel gear 231 , the second bevel gear 1224 is fixedly connected to the first transmission shaft 122 , and the second bevel gear 1224 is It rotates with the rotation of the first transmission shaft; the first transmission shaft 122 is also provided with a third bevel gear 1221 matched with the first bevel gear 231, and the third bevel gear 1221 is sleeved on the On the first transmission shaft 122, the third bevel gear does not rotate with the first transmission shaft; the first transmission shaft 122 is also provided with a first fixing plate 1222 and a second fixing plate 1223, the first fixing plate and the first fixing plate 1223. Two fixed plates are fixed on the first transmission shaft, the first fixed plate and the second fixed plate are respectively arranged on both sides of the third bevel gear, the distance between the first fixed plate and the second fixed plate is equal to the thickness of the third bevel gear, The second bevel gear has the same structure as the third bevel gear, and the distance between the second bevel gear and the third bevel gear is equal to the diameter of the first bevel gear. The three bevel gears are in contact, the second bevel gear and the third bevel gear simultaneously provide support for the first bevel gear, and when the second bevel gear drives the first bevel gear to rotate, the third bevel gear rotates together with the first bevel gear .

The transmission bin 12 is provided with a second fixing block 121, the second fixing block 121 is provided with a limiting cavity 1211, the second transmission shaft 23 is provided with a limiting plate 233, and the limiting plate 233 is provided on the In the limit cavity 1211, the limit plate can be rotated in the limit cavity, the depth of the limit cavity is equal to the thickness of the limit plate, the second transmission shaft is passed through the second fixed block, Under the condition that the rotation of the second transmission shaft is hindered, the second transmission shaft is provided with a supporting function, and the transmission effect of the second bevel gear on the first bevel gear is matched, so that the second transmission shaft drives the rotating wheel to rotate more stably.

When the driving motor works to drive the first transmission wheel to rotate, the first transmission shaft drives the crankshaft to rotate while driving the second bevel gear to rotate, and the second bevel gear drives the first bevel gear to rotate through the cooperation with the first bevel gear. Through the cooperation of the third bevel gear and the first bevel gear, the second bevel gear and the first bevel gear are prevented from being disengaged during the cooperative transmission, and the rotation stability of the second transmission shaft is increased; The lower rotation drives the rotating wheel to rotate, and the rotating wheel drives the cooling liquid in the cooling liquid tank to flow rapidly when rotating, so that the cooling liquid in the cooling cavity is in a flowing state, and the cooling effect of the cooling liquid on the piston cylinder is increased.

The piston assembly 112 includes a piston rod connected to the crankshaft 111 , a piston head 1121 movably connected to the piston rod, an outer casing 1123 disposed outside the piston head 1121 , and an outer casing 1123 for connecting the outer casing 1123 . The connecting spring 1127 with the piston head 1121; the outer casing is four groups, which are respectively arranged around the piston head. It is smaller than the bore diameter of the piston cylinder. When the connecting spring is at its original length, the distance between the two outer casings is greater than the bore diameter of the piston cylinder.

The side wall of the piston head 1121 is provided with a sealing block 1122 which is matched with the outer casing 1123. The inner wall of the outer casing 1123 is provided with a sealing gasket 1124. The sealing block and the sealing gasket are made of rubber. The sealing block is: Four blocks are evenly arranged on the sidewall of the piston head, and the distance between the two sealing blocks is equal to the diameter of the piston cylinder. The sealing gasket 1124 is provided with a groove 1126, and the connecting spring 1127 is provided in the groove 1126. ; The bottom of the piston head 1121 is also provided with a support plate 1125, the diameter of the support plate is equal to the aperture of the piston cylinder, the top surface of the support plate is in contact with the bottom surface of the outer casing and the bottom surface of the gasket, and the connection spring is limited by the support plate and the groove, Avoid the bending of the connecting spring, increase the matching effect between the outer casing and the piston head, avoid the bending of the connecting spring after the piston assembly is installed into the piston cylinder, so that the outer casing cannot enter the piston cylinder, and improve the reliability of the equipment.

The inner wall of the piston cylinder 14 is slanted, the top diameter of the piston cylinder is larger than the bottom diameter of the piston cylinder, the top of the outer casing 1123 is provided with a second connecting shaft 1128, and the second connecting shaft 1128 is sleeved with a ball 1129; the outer casing There is an installation cavity on the upper part, the second connecting shaft is arranged in the installation cavity, and the balls pass through the installation cavity; when the crankshaft rotates to drive the piston assembly into the piston cylinder, the roller on the top edge of the outer casing contacts the inner wall of the piston cylinder, Through the mutual contact between the roller and the inner wall of the piston cylinder, the friction between the ball and the inner wall of the piston cylinder is reduced, the outer casing is prevented from being worn when it is in contact with the inner wall of the piston cylinder, and it is convenient to push the piston assembly into the piston cylinder; When the inner wall of the piston cylinder enters the piston cylinder, as the inner diameter of the piston cylinder decreases, the connecting spring is squeezed and begins to shrink until the gasket on the inner wall of the outer casing contacts the side wall of the piston head to form a sealing fit. At this time, the connecting spring It is retracted into the groove with the gasket, and the support plate provides support for the outer casing, avoiding the bending of the connecting spring when the outer casing rubs against the inner wall of the piston cylinder and causing damage to the connecting spring; when the gasket is in contact with the side wall of the piston head When the outer casing is in contact with the sealing block on the side wall of the piston head, through the cooperation between the sealing block and the gasket, the piston assembly and the inner wall of the piston cylinder form a sealing fit, changing the air pressure in the piston cylinder and compressing The effect of air; through the arrangement of the outer casing, the sealing gasket and the sealing block, the wear of the piston assembly and the inner wall of the piston cylinder is reduced, and the noise of the piston assembly in the piston cylinder is reduced, and the practicability of the air compressor is increased.

The shock-absorbing assembly includes a third fixing plate 132 arranged in the motor compartment 13 and a buffering spring 133 arranged on the third fixing plate 132 . One end of the plate is in contact with the cover plate, and the driving motor 131 is arranged on the third fixing plate 132; the third fixing plate is an annular structure, and the third fixing plate is two pieces. The distance between the third fixing plates is smaller than the diameter of the driving motor, and the driving motor is installed between the two third fixing plates to provide a fixing effect for the driving motor while damping the driving motor. It is stably fixed in the motor compartment to increase the stability of the equipment; the third fixing plate 132 is provided with ventilation holes 1321, and the inner wall of the motor compartment 13 is provided with ventilation holes 15 matched with the ventilation holes 1321; The heat generated by the motor enters the ventilation hole through the ventilation hole, and then dissipates from the motor compartment at the right ventilation hole, so as to prevent the driving motor from being damaged due to overheating when the driving motor is working, and increase the heat dissipation effect of the driving motor.

Claims (1)

1. A safe and stable air compressor comprises an equipment box (1), a piston cylinder (14) arranged on the equipment box (1) and an air storage box (4) arranged on one side of the equipment box (1), wherein the air storage box (4) is connected with the piston cylinder (14) through an air conveying pipe (41), and a motor cabin (13) is further arranged in the equipment box (1); the method is characterized in that: a cover plate (134) is arranged on one side of the motor bin (13), the cover plate (134) is detachably connected with the motor bin (13), a fixing rod (18) is arranged on the side wall of the equipment box (1), and a limiting assembly is arranged above the fixing rod (18); the limiting assembly comprises a first fixing block (16) arranged on the side wall of the equipment box (1), a limiting block (162) arranged on the first fixing block (16) and a limiting plate (17) arranged on the first fixing block (16) and matched with the fixing rod (18), and a first limiting groove (171) matched with the limiting block (162) is formed in the limiting plate (17); the fixing rod (18) is movably connected to the side wall of the equipment box (1), a limiting rod is arranged at one end of the fixing rod (18), and a second limiting groove (167) matched with the limiting rod is formed in the first fixing block (16); a connecting block (165) is arranged at the top of the limiting block (162), a first connecting shaft (166) is arranged on the connecting block (165), and a movable rod (161) is sleeved on the first connecting shaft (166); a third limiting groove (172) matched with the movable rod (161) is formed in the limiting plate (17); the number of the movable rods (161) is four, the two adjacent movable rods (161) are movably connected, an installation groove is formed in each movable rod (161), and a limiting spring (163) is arranged in each installation groove; the cooling liquid box (2) is arranged on the equipment box (1), the cooling box (3) is arranged on the outer side of the piston cylinder (14), a liquid outlet pipe (21) and a liquid inlet pipe (22) are arranged on one side of the cooling liquid box (2), a rotating wheel (232) is arranged in the cooling liquid box (2), the rotating wheel (232) is arranged on one side of the liquid outlet pipe (21) and one side of the liquid inlet pipe (22), and the rotating wheel (232) can be driven to rotate by the driving motor (131); the rotating wheel is positioned on the same horizontal plane with the liquid inlet pipe and the liquid outlet pipe; the rotating wheel (232) is provided with a convex part, and the convex part is provided with an arc surface; a second transmission shaft (23) is arranged on the bottom surface of the rotating wheel (232); a shock absorption assembly is arranged in the motor bin (13), the shock absorption assembly comprises a third fixing plate (132) arranged in the motor bin (13) and a shock absorption spring (133) arranged on the third fixing plate (132), and the driving motor (131) is arranged on the third fixing plate (132); the third fixed plate is the loop configuration, and the third fixed plate is two, and when the bradyseism spring was in the primary length, the distance between two third fixed plates was less than driving motor's diameter, installs driving motor between two third fixed plates, be equipped with second bleeder vent (1321) on third fixed plate (132), be equipped with on motor storehouse (13) inner wall with second bleeder vent (1321) matched with ventilation hole (15).

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