CN112377384A

CN112377384A - Controllable two-stage compression air compressor

Info

Publication number: CN112377384A
Application number: CN202011369559.3A
Authority: CN
Inventors: 吴佳荣
Original assignee: Nanjing Jiuchang Intelligent Technology Co Ltd
Current assignee: Nanjing Jiuchang Intelligent Technology Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-02-19

Abstract

The invention discloses a controllable two-stage compression air compressor, which comprises a machine body, wherein a support column is fixedly arranged on the upper side surface of the machine body, an electric machine body is fixedly arranged on the support column, a first-stage box body is fixedly arranged in the machine body, a sealing box is fixedly arranged on the upper side of the machine body, a second-stage box body is fixedly arranged in the machine body on the lower side of the first-stage box body, an air storage tank is fixedly arranged on the lower side of the machine body, a water tank is fixedly arranged in the machine body between the first-stage box body and the second-stage box body, cooling water is fully filled in the water tank, a cooling box is fixedly arranged between the first-stage box body and the second-stage box body, a first-stage cavity is arranged in the first-stage box body, a second-stage cavity is arranged in the second-stage box body, a control cavity is, then storing the compressed air, and controlling the secondary compression to increase the stored air pressure when needed.

Description

Controllable two-stage compression air compressor

Technical Field

The invention relates to the relevant field of air compressors, in particular to a controllable two-stage compression air compressor.

Background

The air compressor is a device for compressing gas, the air compressor is similar to a water pump in structure, most of the air compressors are of a reciprocating piston type, rotating blades or rotating screws, provide air source power, are core devices of a pneumatic system, and are main bodies in an electromechanical air-entraining source device, the air compressor is a device for converting motive mechanical energy into gas pressure energy, and is an air pressure generating device for compressing air, and a common air compressor simply compresses and stores the gas, cannot operate the pressure and the compression stage number of the compressed gas, is low in compression speed and is limited in compression efficiency.

Disclosure of Invention

In order to solve the problems, the invention provides a controllable two-stage compression air compressor.

The invention is realized by the following technical scheme.

The invention relates to a controllable two-stage compression air compressor, which comprises a machine body, wherein a support column is fixedly arranged on the upper side surface of the machine body, an electric machine body is fixedly arranged on the support column, a first-stage box body is fixedly arranged in the machine body, a sealing box is fixedly arranged on the upper side of the machine body, a second-stage box body is fixedly arranged in the machine body on the lower side of the first-stage box body, an air storage tank is fixedly arranged on the lower side of the machine body, a water tank is fixedly arranged in the machine body between the first-stage box body and the second-stage box body, cooling water is filled in the water tank, a cooling box is fixedly arranged between the first-stage box body and the second-stage box body, a first-stage cavity is arranged in the first-stage box body, a second-stage cavity is arranged in the second-stage box body, a power device for providing compression power is arranged in the vertical middle of the machine body;

the power device comprises a main motor fixedly arranged in the motor body, the main motor is in power connection with a motor shaft, a driving rotating shaft is fixedly arranged on the lower side of the motor shaft and extends into the control cavity, a pressure device is fixedly arranged on the lower side wall of the air inlet cavity and is connected with a pressure connecting rod, a rotating thread plate is in threaded connection with the inner wall of the sealing box, a rotating rod is fixedly arranged on the rotating thread plate and is abutted against the rotating thread plate, a rotating ring II which is rotatably connected in the cooling box is fixedly arranged on the lower side of the motor shaft, the left side of the cooling box is connected with a gas pipe, the gas pipe is connected with a branch gas pipe communicated with the pressurizing cavity, a pressure sliding plate is slidably connected in the pressurizing cavity, a pressurizing baffle is fixedly arranged on the pressure sliding plate, a through hole is formed in the pressurizing baffle, and a pressurizing spring is connected on the pressure, a primary air storage pipe communicated with the air storage tank is connected between the air delivery pipe and the air storage tank, the lower side of the cooling tank is rotatably connected with a second rotating ring, the second rotating ring on the lower side is rotatably connected with the driving rotating shaft, and a transmission rotating shaft rotatably connected with the driving rotating shaft is fixedly arranged on the second rotating ring on the lower side;

the first-stage cavity is internally provided with a first-stage compression device, and the second-stage cavity is internally provided with a second-stage compression pressurizing device.

Preferably, a first bevel gear is fixedly arranged on the lower side of the transmission rotating shaft, a third bevel gear is fixedly arranged on the lower side of the driving rotating shaft, an electromagnetic impeller is fixedly arranged on the right side wall of the control cavity, the electromagnetic impeller is in power connection with a push rod, a second bevel gear is rotatably connected to the push rod, and two second-stage gas storage pipes communicated with the gas storage tank are fixedly arranged on the lower side of the second-stage box body.

Preferably, the compression device comprises a first rotating wheel fixedly mounted on the motor shaft, six first compression cylinders distributed circumferentially are fixedly arranged in the first rotating wheel, a first piston is slidably connected in each first compression cylinder, a first piston rod is fixedly arranged on each first piston, a sliding plate is fixedly arranged on each first piston rod, magnets of the same level are fixedly arranged in the sliding plate, a compression spring is connected between the sliding plate and each first compression cylinder, six sliding bodies distributed circumferentially are fixedly arranged on the outer side of the first rotating wheel, the sliding plate slides in the sliding bodies, the sliding bodies can slide on the inner wall of the primary cavity, positive magnets and negative magnets distributed circumferentially are fixedly arranged on the side wall of the primary box body respectively, the negative magnets and the positive magnets are opposite in magnetism, the positive magnets are increased clockwise, and the magnets of the same level are opposite in magnetism to the negative magnets, the side wall of the first-level cavity is rotatably connected with a first rotating ring, the first rotating ring rotates in the side wall of the sealing box, the upper side of each first compression cylinder is connected with an air inlet pipe, the air inlet pipes are fixedly connected in the first rotating ring, the air inlet pipes are communicated with the sealing box and the first compression cylinders, the lower sides of the first compression cylinders are connected with air outlet pipes, the air outlet pipes are fixedly connected in the second rotating ring at the upper side, the air outlet pipes are communicated with the first compression cylinders and the cooling cavity, the first rotating ring and the air outlet pipes are respectively connected with a one-way valve, the air inlet pipes can only supply air, and the air outlet pipes can only supply air through the one-.

Preferably, the pressurizing device comprises a second rotating wheel fixedly installed on the transmission rotating shaft, four compression cylinders distributed circumferentially are fixedly arranged in the second rotating wheel, a second piston is connected in each compression cylinder in a sliding manner, a piston spring is connected between the second piston and the second compression cylinder, elliptical slide rails are fixedly arranged on the upper side wall and the lower side wall of the secondary cavity respectively, a second piston rod sliding between the elliptical slide rails is fixedly arranged on the second piston, a secondary air outlet pipe communicated with the second compression cylinder is arranged in the second piston rod and the second piston, a circular sliding block abutting against the inner side of the elliptical slide rails is fixedly arranged in the second piston rod, the first rotating wheel is connected in the secondary air outlet pipe, the first rotating wheel enables the secondary air outlet pipe to only discharge air, and the second piston spring and the second rotating ring on the lower side of the piston spring are connected with a secondary air inlet pipe, the first rotating wheel is connected in the second-stage air inlet pipe and can enable the second-stage air inlet pipe to intake air.

The beneficial effects are that: the utility model provides a controllable second grade compression air compressor machine, wherein power device can provide the required power of compression for compressed air, and can control the secondary compression, compression device can inhale in a large number and compress the external gas, then make gas save with high-pressure state, pressure device can control when needs and start, compress the gas of first compression once more, realize gaseous secondary compression, this equipment can be quick compress a large amount of gas, and with the compressed gas cooling, then the storage, and can control when required and carry out the secondary compression, make the atmospheric pressure increase of storage.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

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

FIG. 2 is a cross-sectional view taken along the line A-A of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with an embodiment of the present invention;

fig. 4 is an enlarged schematic view of the embodiment of the present invention at C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a controllable two-stage compression air compressor, which comprises a machine body 10, wherein a support column 14 is fixedly arranged on the upper side of the machine body 10, an electric machine body 13 is fixedly arranged on the support column 14, a first-stage box body 20 is fixedly arranged in the machine body 10, a sealing box 17 is fixedly arranged on the upper side of the machine body 10, a second-stage box body 43 is fixedly arranged in the machine body 10 on the lower side of the first-stage box body 20, an air storage tank 53 is fixedly arranged on the lower side of the machine body 10, a water tank 38 is fixedly arranged in the machine body 10 between the first-stage box body 20 and the second-stage box body 43, cooling water is filled in the water tank 38, a cooling box 35 is fixedly arranged between the first-stage box body 20 and the second-stage box body 43, a first-stage cavity 65 is arranged in the first-stage box body 20, a second-stage cavity 66 is, an air inlet cavity 69 is formed in the seal box 17, a pressure increasing cavity 70 is formed in the machine body 10 on the left side of the water tank 38, a power device 71 for providing compression power is arranged in the vertical middle of the machine body 10, the power device 71 comprises a main motor 11 fixedly installed in the motor body 13, the main motor 11 is in power connection with a motor shaft 12, a driving rotating shaft 36 is fixedly arranged on the lower side of the motor shaft 12, the driving rotating shaft 36 extends into the control cavity 67, a pressure gauge 19 is fixedly arranged on the lower side wall of the air inlet cavity 69, a pressure connecting rod 18 is connected to the pressure gauge 19, a rotating threaded plate 16 is in threaded connection with the inner wall of the seal box 17, a rotating rod 15 is fixedly arranged on the rotating threaded plate 16, the pressure connecting rod 18 is in butt joint with the rotating threaded plate 16, a rotating ring second 34 which is in rotating connection with the cooling box 35, the left side of the cooling box 35 is connected with a gas pipe 37, the gas pipe 37 is connected with a branch gas pipe 39 communicated with the pressurizing cavity 70, the pressurizing cavity 70 is internally and slidably connected with a pressure slide plate 40, a pressurizing baffle plate 41 is fixedly arranged on the pressure slide plate 40, a through hole is formed in the pressurizing baffle plate 41, a pressurizing spring 42 is connected onto the pressure slide plate 40, a communicated primary gas storage pipe 62 is connected between the gas pipe 37 and the gas storage tank 53, the lower side of the cooling box 35 is rotatably connected with a second rotating ring 34, the second rotating ring 34 on the lower side is rotatably connected with the driving rotating shaft 36, a transmission rotating shaft 55 rotatably connected with the driving rotating shaft 36 is fixedly arranged on the second rotating ring 34 on the lower side, a primary compression device 72 is arranged in the primary cavity 65, and a secondary compression pressurizing device 73 is arranged in the secondary cavity 66.

Advantageously, a first bevel gear 56 is fixedly arranged on the lower side of the transmission rotating shaft 55, a third bevel gear 60 is fixedly arranged on the lower side of the driving rotating shaft 36, an electromagnetic impeller 57 is fixedly arranged on the right side wall of the control cavity 67, the electromagnetic impeller 57 is in power connection with a push rod 58, a second bevel gear 59 is in rotation connection with the push rod 58, two second air storage pipes 54 communicated with the air storage tank 53 are fixedly arranged on the lower side of the second-stage box 43, so as to manually rotate the rotating rod 15, the support column 14 rotates in the air inlet cavity 69, the air inlet cavity 69 is opened, the pressure applied to the pressure connecting rod 18 is reduced, the pressure gauge 19 detects pressure changes, the pressure gauge 19 can control the main motor 11, when the pressure applied to the pressure gauge 19, the main motor 11 cannot be started, and then when the main motor 11 is started, the motor shaft 12 rotates to drive the rotating ring two 34 and the driving rotating shaft 36 on the, the third bevel gear 60 is driven to rotate, when the electromagnetic pusher 57 is started, the second bevel gear 59 is pushed to enable the second bevel gear 59 to be meshed with the third bevel gear 60 and the first bevel gear 56, the third bevel gear 60 drives the second bevel gear 59 to rotate, and the second bevel gear 59 drives the first bevel gear 56 to rotate to drive the transmission rotating shaft 55 and the rotating ring on the lower side 34 to rotate.

Advantageously, the compressing device 72 includes a rotating wheel 24 fixedly mounted on the motor shaft 12, six circumferentially distributed compression cylinders 26 are fixedly arranged in the rotating wheel 24, a piston 27 is slidably connected in each compression cylinder 26, a piston rod 28 is fixedly arranged on the piston 27, a sliding plate 31 is fixedly arranged on the piston rod 28, magnets 32 of the same level are fixedly arranged in the sliding plate 31, a compression spring 30 is connected between the sliding plate 31 and the compression cylinder 26, six circumferentially distributed sliding bodies 29 are fixedly arranged on the outer side of the rotating wheel 24, the sliding plate 31 slides in the sliding body 29, the sliding bodies 29 can slide on the inner wall of the primary chamber 65, six circumferentially distributed positive magnets 23 and negative magnets 61 are respectively fixedly arranged on the side wall of the primary chamber 20, and the negative magnets 61 and the positive magnets 23 are opposite in magnetism, the magnetism of the positive magnet 23 is increased clockwise, the magnetism of the magnet 32 at the same level is opposite to that of the negative magnet 61, the upper side wall of the primary cavity 65 is rotatably connected with a first rotating ring 21, the first rotating ring 21 rotates in the lower side wall of the seal box 17, the upper side of each first compression cylinder 26 is connected with an air inlet pipe 22, the air inlet pipe 22 is fixedly connected in the first rotating ring 21, the air inlet pipe 22 is communicated with the seal box 17 and the first compression cylinders 26, the lower side of the first compression cylinders 26 is connected with an air outlet pipe 33, the air outlet pipe 33 is fixedly connected in the second rotating rings 34 at the upper side, the air outlet pipe 33 is communicated with the first compression cylinders 26 and the cooling cavity 68, the first rotating rings 21 and the air outlet pipe 33 are respectively connected with a one-way valve 25, the one-way valve 25 enables the air inlet pipe 22 to only feed air, so that the motor shaft 12 drives the rotating wheel one 24 to rotate, the sliding body 29 is driven to slide on the inner wall of the primary cavity 65, when the magnet 32 at the same level is opposite to the magnet 23 at the same level, the magnet 32 at the same level is attracted by the magnet 23 at the same level, the sliding plate 31 is driven to slide in the sliding body 29, the one-way valve 25 is driven to slide in the first compression cylinder 26, outside air is sucked in through the air inlet pipe 22, the compression spring 30 is stretched, when the magnet 32 at the same level is opposite to the magnet 61 at the negative level, the magnet 61 at the negative level repels the magnet 32 at the same level to push the sliding plate 31, the compression spring 30 pulls the sliding plate 31 to reset the sliding plate 31, the piston one 27 is pushed to compress the air in the first compression cylinder 26, and the compressed air is discharged into the cooling cavity 68 through the air outlet pipe, the compressed gas in the cooling cavity 68 is cooled by the cooling water in the water tank 38, when the rotating wheel 24 rotates, the repulsive force borne by the same-stage magnet 32 is increased, the compression is increased, the gas enters the gas pipe 37 and enters the pressurization cavity 70 through the branch gas pipe 39, after the air pressure in the cooling cavity 68 and the air pressure in the pressurization cavity 70 are accumulated, the pressure slide plate 40 is pushed to compress the pressurization spring 42, the pressurization baffle 41 moves downwards, the hole in the pressurization baffle 41 is communicated with the gas pipe 37, and the compressed gas enters the gas storage tank 53 through the first-stage gas storage pipe 62 and is stored.

Advantageously, the pressurizing device 73 includes a second rotating wheel 52 fixedly mounted on the transmission rotating shaft 55, four compression cylinders 50 distributed circumferentially are fixedly mounted in the second rotating wheel 52, a second piston 48 is slidably connected in each of the compression cylinders 50, a piston spring 49 is connected between the second piston 48 and the second compression cylinder 50, elliptical slide rails 44 are fixedly mounted on upper and lower side walls of the second-stage cavity 66 respectively, a second piston rod 45 sliding between the elliptical slide rails 44 is fixedly mounted on the second piston 48, a second air outlet 46 communicating with the second compression cylinder 50 is disposed in the second piston rod 45 and the second piston 48, a circular slider 47 abutting against the inner side of the elliptical slide rail 44 is fixedly mounted in the second piston rod 45, the first rotating wheel 24 is connected in the second air outlet 46, and the first rotating wheel 24 only allows the second air outlet 46 to be exhausted, a second air inlet pipe 51 is connected between the piston spring 49 and the rotating ring second 34 on the lower side, the rotating wheel first 24 is connected in the second air inlet pipe 51, the rotating wheel first 24 only can enable the second air inlet pipe 51 to intake air, so that after the electromagnetic pusher 57 is started, the bevel gear second 59 is meshed with the bevel gear third 60 and the bevel gear first 56, the transmission rotating shaft 55 rotates to drive the rotating wheel second 52 to rotate, the piston rod second 45 is driven to rotate in the elliptical slide rail 44, the circular sliding block 47 slides and rotates on the inner wall of the elliptical slide rail 44, when the piston rod second 45 rotates to the left side and the right side of the elliptical slide rail 44, the piston spring 49 pushes the piston second 48 to enable the circular sliding block 47 to cling to the elliptical slide rail 44, and the piston spring 49 enables the air in the cooling cavity 68 to be sucked through the second air inlet pipe 51, at this time, the air pressure in the cooling cavity 68 is reduced, the air pressure in the pressurizing cavity 70 is also reduced, the pressurizing spring 42 pushes the pressure slide plate 40 to reset, the pressurizing baffle 41 blocks the air delivery pipe 37, when the second piston rod 45 rotates to the front side and the rear side of the elliptical slide rail 44, the elliptical slide rail 44 pushes the circular slide block 47 to compress the piston spring 49, the second piston rod 45 slides in the second compression cylinder 50 to compress the air again, and the air enters the secondary cavity 66 through the secondary air outlet pipe 46 and then enters the air storage tank 53 through the secondary air storage pipe 54 to be stored.

In the initial state, the main motor 11 is not started, the first bevel gear 56 and the third bevel gear 60 are disengaged from the second bevel gear 59, and the rotary screw plate 16 seals the air inlet chamber 69.

When the work is started, the rotating rod 15 is manually rotated, the supporting column 14 rotates in the air inlet cavity 69, the air inlet cavity 69 is opened, the pressure applied to the pressure connecting rod 18 is reduced, the pressure gauge 19 detects the pressure change, the pressure gauge 19 can control the main motor 11, when the pressure gauge 19 is pressed, the main motor 11 cannot be started, then when the main motor 11 is started, the motor shaft 12 rotates to drive the rotating ring II 34 and the driving rotating shaft 36 on the upper side to rotate, the bevel gear III 60 is driven to rotate, when the electromagnetic pusher 57 is started, the bevel gear II 59 is pushed to be meshed with the bevel gear III 60 and the bevel gear I56, the bevel gear III 60 drives the bevel gear II 59 to rotate, the bevel gear II 59 drives the bevel gear I56 to rotate, the driving rotating shaft 55 and the rotating ring II 34 on the lower side are driven to rotate, the motor shaft 12 drives the rotating wheel I24 to rotate, when the magnets 32 at the same stage face the positive magnets 23, the positive magnets 23 attract the magnets 32 at the same stage to drive the sliding plate 31 to slide in the sliding body 29, the one-way valve 25 is driven to slide in the first compression cylinder 26, the outside air is sucked in through the air inlet pipe 22, the compression spring 30 is stretched, when the magnets 32 at the same stage face the negative magnet 61, the negative magnet 61 repels the magnets 32 at the same stage to push the sliding plate 31, the compression spring 30 pulls the sliding plate 31 to reset the sliding plate 31, the piston first 27 is pushed to compress the air in the compression cylinder first 26, the compressed air is discharged into the cooling cavity 68 through the air outlet pipe 33, the compressed air in the cooling cavity 68 is cooled by the cooling water in the water tank 38, when the rotating wheel first 24 rotates, the repulsive force borne by the magnets 32 at the same stage is increased, the compression is increased, the air enters the air conveying pipe 37 and enters the pressurizing cavity 70 through the branch air pipe 39, the pressure slide plate 40 is pushed to compress the pressurization spring 42, the pressurization baffle 41 moves downwards, holes in the pressurization baffle 41 are communicated with the gas pipe 37, compressed gas enters the gas storage tank 53 through the primary gas storage pipe 62 to be stored, after the electromagnetic impeller 57 is started, the bevel gear II 59 is meshed with the bevel gear III 60 and the bevel gear I56, the transmission rotating shaft 55 rotates to drive the rotating wheel II 52 to rotate, the piston rod II 45 is driven to rotate in the elliptical sliding rail 44, the circular slide block 47 slides and rotates on the inner wall of the elliptical sliding rail 44, when the piston rod II 45 rotates to the left side and the right side of the elliptical sliding rail 44, the piston spring 49 pushes the piston II 48 to enable the circular slide block 47 to be tightly attached to the elliptical sliding rail 44, the piston spring 49 sucks gas in the cooling cavity 68 through the secondary gas inlet pipe 51, at the moment, the gas pressure in the cooling cavity 68 is reduced, the gas pressure in the pressurization cavity 70 is, when the second piston rod 45 rotates to the front side and the rear side of the elliptical sliding rail 44, the elliptical sliding rail 44 pushes the circular sliding block 47 to compress the piston spring 49, the second piston rod 45 slides in the second compression cylinder 50 to compress gas again, and the gas enters the second-stage cavity 66 through the second-stage gas outlet pipe 46 and then enters the gas storage tank 53 through the second-stage gas storage pipe 54 to be stored.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a controllable second grade compression air compressor machine, includes the organism, its characterized in that: a support column is fixedly arranged on the upper side surface of the machine body, a motor body is fixedly arranged on the support column, a primary box body is fixedly arranged in the machine body, a sealing box is fixedly arranged on the upper side of the machine body, a secondary box body is fixedly arranged in the machine body on the lower side of the primary box body, the lower side of the machine body is fixedly provided with an air storage tank, a water tank is fixedly arranged in the machine body between the first-stage box body and the second-stage box body, the water tank is filled with cooling water, a cooling tank is fixedly arranged between the primary tank body and the secondary tank body, a primary cavity is arranged in the primary box body, a secondary cavity is arranged in the secondary box body, a control cavity is arranged in the machine body on the upper side of the gas storage tank, a cooling cavity is arranged in the cooling box, an air inlet cavity is arranged in the sealing box, a pressurizing cavity is arranged in the machine body on the left side of the water box, and a power device for providing compression power is arranged in the vertical middle of the machine body;

2. The controllable two-stage compression air compressor of claim 1, wherein: the transmission rotating shaft lower side is fixedly provided with a bevel gear I, the driving rotating shaft lower side is fixedly provided with a bevel gear III, the right side wall of the control cavity is fixedly provided with an electromagnetic impeller, the electromagnetic impeller is in power connection with a push rod, the push rod is rotatably connected with a bevel gear II, and the lower side of the secondary box body is fixedly provided with two secondary gas storage pipes communicated with the gas storage tank.

3. The controllable two-stage compression air compressor of claim 1, wherein: the compression device comprises a first rotating wheel fixedly mounted on the motor shaft, wherein six compression cylinders distributed in the circumferential direction are fixedly arranged in the first rotating wheel, a first piston is slidably connected in each compression cylinder, a first piston rod is fixedly arranged on the first piston, a sliding plate is fixedly arranged on the first piston rod, magnets at the same level are fixedly arranged in the sliding plate, a compression spring is connected between the sliding plate and the first compression cylinder, six sliders distributed in the circumferential direction are fixedly arranged on the outer side of the first rotating wheel, the sliding plate slides in the sliders, the sliders can slide on the inner wall of the primary cavity, positive magnets and negative magnets distributed in the circumferential direction are fixedly arranged on the side wall of the primary box body respectively, the negative magnets and the positive magnets are opposite in magnetism, the positive magnets are increased clockwise, and the magnets at the same level are opposite in magnetism to the negative magnets, the side wall of the first-level cavity is rotatably connected with a first rotating ring, the first rotating ring rotates in the side wall of the sealing box, the upper side of each first compression cylinder is connected with an air inlet pipe, the air inlet pipes are fixedly connected in the first rotating ring, the air inlet pipes are communicated with the sealing box and the first compression cylinders, the lower sides of the first compression cylinders are connected with air outlet pipes, the air outlet pipes are fixedly connected in the second rotating ring at the upper side, the air outlet pipes are communicated with the first compression cylinders and the cooling cavity, the first rotating ring and the air outlet pipes are respectively connected with a one-way valve, the air inlet pipes can only supply air, and the air outlet pipes can only supply air through the one-.

4. The controllable two-stage compression air compressor of claim 1, wherein: the pressurizing device comprises a second rotating wheel fixedly arranged on the transmission rotating shaft, four compression cylinders distributed circumferentially are fixedly arranged in the second rotating wheel, a second piston is connected in each compression cylinder in a sliding manner, a piston spring is connected between the second piston and the second compression cylinder, elliptic slide rails are fixedly arranged on the upper side wall and the lower side wall of the secondary cavity respectively, a second piston rod sliding between the elliptic slide rails is fixedly arranged on the second piston, a second outlet pipe communicated with the second compression cylinder is arranged in the second piston rod and the second piston, a circular slide block abutted against the inner side of the elliptic slide rails is fixedly arranged in the second piston rod, the first rotating wheel is connected in the second outlet pipe, the first rotating wheel enables the second outlet pipe to only give out air, and a second air inlet pipe is connected between the piston spring and the second rotating ring on the lower side, the first rotating wheel is connected in the second-stage air inlet pipe and can enable the second-stage air inlet pipe to intake air.