A lightweight and portable gas compressor

Abstract

A light and portable gas compressor relates to the field of gas compressor, three forward cylinders and three reverse cylinders are uniformly fixed on the outer edge surface of the ring plate, the inlet pipe is connected with the bottom side of the forward cylinder B through a one-way valve, then the forward cylinder B is connected with the reverse cylinder A, the reverse cylinder A is connected with the forward cylinder A, the forward cylinder A is connected with the reverse cylinder B, the reverse cylinder B is connected with the forward cylinder C, the forward cylinder C is connected with the reverse cylinder C, and the reverse cylinder C is connected with the exhaust pipe, the repeated gas compression of the three forward cylinders and the three reverse cylinders is controlled by the double-headed piston rod hydraulic cylinder, and the power of the double-headed piston rod hydraulic cylinder is provided by the oil supply hydraulic cylinder A and the oil supply hydraulic cylinder B; the double-headed piston rod hydraulic cylinder arranged in the ring plate controls the three reverse cylinders and the three forward cylinders respectively to realize gas compression, so that the light and portable gas compression purpose is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a gas compressor, in particular, the present application relates to a lightweight and portable gas compressor. BACKGROUND

[0002] The known gas compressor is a device for compressing gas by mechanical energy, commonly used reciprocating compression piston and double rotor meshing compression screw, among which the piston is the most common, the principle of piston is driven by the motor crankshaft, a plurality of piston rods connected with the crankshaft drive a gas compression cylinder, then the gas is compressed by the first cylinder through the pipeline and one-way valve into the second compression cylinder, the second compression cylinder through the pipeline and one-way valve into the third compression cylinder, the third compression cylinder through the pipeline and one-way valve into the fourth compression cylinder, the fourth compression cylinder through the pipeline and one-way valve into the fifth compression cylinder, the fifth compression cylinder through the pipeline and one-way valve into the sixth compression cylinder, then through the pipeline into the device, so that the device to obtain multi-stage compression gas; this way makes the multiple compression cylinder must be connected with the motor through the crankshaft into a whole, not only heavy, moving more difficult, especially in small space or high altitude power equipment, the use of military field and the use of ships is very inconvenient. SUMMARY

[0003] The purpose of the present application is based on the existing deficiencies, disclosed a lightweight and portable gas compressor, by setting double head piston rod hydraulic cylinder in the ring plate control three reverse cylinder and three positive cylinder to achieve gas compression, achieved the purpose of lightweight and portable gas compression, achieved the purpose of separation from the motor lightweight use.

[0004] In order to achieve the purpose of the present application, the present application discloses the following technical solutions:

[0005] The utility model provides a light and portable gas compressor, which comprises a ring plate, forward cylinders, reverse cylinders, an air inlet pipe, a one-way valve, connecting hoses, an air outlet pipe, a double-headed piston rod hydraulic cylinder, hydraulic pipes A and B and hydraulic cylinders, three forward cylinders and three reverse cylinders are evenly fixed on the outer edge surface of the ring plate, the cylinder openings of the three forward cylinders and the three reverse cylinders are staggered, with one forward cylinder flanked by a reverse cylinder and one reverse cylinder flanked by a forward cylinder, the air inlet pipe is connected to one side of the bottom of the forward cylinder B through the one-way valve, the other side of the forward cylinder B is connected to one side of the bottom of the reverse cylinder A through the connecting hoses and the one-way valve, the other side of the bottom of the reverse cylinder A is connected to one side of the bottom of the forward cylinder A through the connecting hoses and the one-way valve, the other side of the bottom of the forward cylinder A is connected to one side of the bottom of the reverse cylinder B through the connecting hoses and the one-way valve, the other side of the bottom of the reverse cylinder B is connected to one side of the bottom of the forward cylinder C through the connecting hoses and the one-way valve, the other side of the bottom of the forward cylinder C is connected to one side of the bottom of the reverse cylinder C through the connecting hoses and the one-way valve, and the other side of the bottom of the reverse cylinder C is connected to the air outlet pipe.

[0006] The light and portable gas compressor has six U-shaped recesses evenly distributed around the outer edge surface of the ring plate, the reverse cylinder A, the reverse cylinder B and the reverse cylinder C are placed in the first U-shaped recess, the third U-shaped recess and the fifth U-shaped recess in the axial direction of the six U-shaped recesses on the outer edge surface of the ring plate, the forward cylinder A, the forward cylinder C and the forward cylinder B are placed in the second U-shaped recess, the fourth U-shaped recess and the sixth U-shaped recess in the axial direction of the six U-shaped recesses on the outer edge surface of the ring plate, a plurality of screw holes B are arranged on both sides of the outer opening of each of the six U-shaped recesses, and a plurality of screws are connected to the screw holes B through the light holes on both sides of the cover plate to fix the three reverse cylinders and the three forward cylinders.

[0007] The lightweight gas compressor convenient to move is provided with screw holes A on the lower part of the ring plate, and multiple screws are connected with the screw holes A through light holes on the supporting legs.

[0008] The lightweight gas compressor convenient to move is provided with a handle on the upper part of the ring plate.

[0009] The lightweight gas compressor convenient to move is provided with outer flared holes on the three U-shaped recesses of the ring plate, and multiple flat head screws are connected with the screw holes of the connecting plates of the double-headed piston rod hydraulic cylinder through the outer flared holes.

[0010] The lightweight gas compressor convenient to move is provided with an oil cylinder body, a piston A, a piston rod A, a piston rod C, a sealing ring A, a cylinder end cover A, a locking ring A, a sealing ring A, a cylinder end cover B, a locking ring B, a sealing ring B and a sealing ring B, and multiple embedded sealing rings are arranged on the outer edge surface of the piston A.

[0011] The lightweight gas compressor convenient to move is provided with a cylinder end cover A and a locking ring A, and the inner convex ring arranged on the lower inner wall of the locking ring A is connected with the lower end surface of the ring pipe.

[0012] The lightweight gas compressor convenient to move is provided with a cylinder end cover B and a locking ring B, and the inner convex ring arranged on the upper inner wall of the locking ring B is connected with the upper end surface of the ring pipe.

[0013] The oil supply hydraulic cylinder A and the oil supply hydraulic cylinder B are arranged in parallel on the support on one side of the upper rear part of the vehicle plate, the pressing plate arranged on the upper part of the oil supply hydraulic cylinder A and the oil supply hydraulic cylinder B is fixedly connected with the support through locking screws, the piston B is arranged in the oil supply hydraulic cylinder A and the oil supply hydraulic cylinder B respectively, the outer middle parts of the two pistons B are hingedly connected with the inner ends of the piston plate B and the piston plate A respectively, the outer ends of the piston plate B and the piston plate A are connected with the connecting rod shaft between the outer ends of the two crank arms A and the two crank arms B on the two sides of the crankshaft journal respectively, the two crank arms A and the two crank arms B are arranged in the radial opposite directions of the crankshaft journal respectively, one end of the front end shaft is fixedly connected with the inner end of one of the two crank arms A, the other end of the front end shaft is connected with the motor, one of the inner ends of the two crank arms B is connected with the inner ring of the bearing on the upper part of the support through the rear end shaft, the outer ring of the bearing on the upper part of the support is fixed by the shaft cover, the oil supply hydraulic cylinder A and the oil supply hydraulic cylinder B are connected with the double-head piston rod hydraulic cylinder and the control console of the control motor through the hydraulic pipe A and the hydraulic pipe B respectively.

[0014] The lightweight and movable gas compressor is provided with a push rod on the upper rear end of the vehicle plate, and vehicle wheels are arranged on the lower parts around the vehicle plate.

[0015] Through the above disclosure, the beneficial effects of the present application are as follows:

[0016] The lightweight and movable gas compressor provided by the present application has the following advantages: the double-head piston rod hydraulic cylinder is arranged in the middle part of the three forward cylinders and the three reverse cylinders, the two cavities separated by the piston A in the double-head piston rod hydraulic cylinder and the hydraulic pipe A and the hydraulic pipe B connecting the two cavities provide kinetic energy for the reciprocating movement of the piston A, the lightweight and movable air compression part is realized, and the gas compression of the equipment which is difficult for the motor to enter into the small space is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the schematic diagram of the three-dimensional structure of the present application;

[0018] Figure 2 is the schematic diagram of the three-dimensional distribution of the cylinder and the hydraulic cylinder A of the present application;

[0019] Figure 3 is the schematic diagram of the three-dimensional structure of the ring plate and the cover plate of the present application;

[0020] Figure 4 is the schematic diagram of the ring plate structure of the present application;

[0021] Figure 5 is the schematic diagram of the three-dimensional structure of the hydraulic cylinder A of the present application;

[0022] Figure 6 is a schematic view of the three-dimensional assembly structure of hydraulic cylinder A of the present application;

[0023] Figure 7 is a schematic view of the three-dimensional structure of the present application and hydraulic cylinder B, crankshaft and motor;

[0024] In the figure: 1, hydraulic pipe A; 2, hydraulic pipe B; 3, handle; 4, ring plate; 5, U-shaped recess; 5.1, first U-shaped recess; 5.2, second U-shaped recess; 5.3, third U-shaped recess; 5.4, fourth U-shaped recess; 5.5, fifth U-shaped recess; 5.6, sixth U-shaped recess; 6, cover plate; 7, reverse cylinder A; 8, forward cylinder A; 9, forward cylinder B; 10, double-headed piston rod hydraulic cylinder; 11, exhaust pipe; 12, cylinder end cover A; 13, piston rod A; 14, Y-shaped plate A; 15, reverse cylinder B; 16, check valve; 17, reverse cylinder C; 18, forward cylinder C; 19, leg; 20, anti-collision net; 21, piston rod B; 22, Y-shaped plate B; 23, intake pipe; 24, connecting hose; 25, connecting plate; 26, screw; 27, middle space; 28, screw hole A; 29, screw hole B; 30, outward flared hole; 31, light hole; 32, connecting pipe A; 33, connecting pipe B; 34, cylinder end cover B; 35, piston rod C; 36, rod hole; 37, plug-in ring A; 38, sealing ring A; 39, inner protruding ring; 40, locking ring A; 41, sealing ring A; 42, embedded sealing ring; 43, piston A; 44, sealing ring B; 45, locking ring B; 46, sealing ring B; 47, ring pipe; 48, end plate; 49, plug-in ring B; 50, push rod; 51, locking screw; 52, control console; 53, pressing plate; 54, oil supply hydraulic cylinder A; 55, oil supply hydraulic cylinder B; 56, piston B; 57, piston plate A; 58, motor; 59, front end shaft; 60, crank arm A; 61, vehicle plate; 62, wheel; 63, crankshaft journal; 64, support seat; 65, crank arm B; 66, shaft cover; 67, support; 68, piston plate B. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, so that the inventive purpose, features and advantages of the present application can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present application, but only to explain the technical solutions of the present application which are not limited to one embodiment.

[0026] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, so that the inventive purpose, features and advantages of the present application can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present application, but only to explain the technical solutions of the present application which are not limited to one embodiment. Figures 1 to 7The light and portable gas compressor comprises a ring plate 4, forward cylinders, reverse cylinders, an air inlet pipe 23, a one-way valve 16, a connecting hose 24, an air outlet pipe 11, a double-headed piston rod hydraulic cylinder 10, hydraulic pipes A1 and B2 and hydraulic cylinders, three forward cylinders and three reverse cylinders are uniformly fixed on the outer edge surface of the ring plate 4, the cylinder openings of the three forward cylinders and the three reverse cylinders are staggered, one side of the cylinder bottom of the forward cylinder B9 is connected with the one-way valve 16, the other side of the cylinder bottom of the forward cylinder B9 is connected with one side of the cylinder bottom of the reverse cylinder A7 through the connecting hose 24 and the one-way valve 16, the other side of the cylinder bottom of the reverse cylinder A7 is connected with one side of the cylinder bottom of the forward cylinder A8 through the connecting hose 24 and the one-way valve 16, the other side of the cylinder bottom of the forward cylinder A8 is connected with one side of the cylinder bottom of the reverse cylinder B15 through the connecting hose 24 and the one-way valve 16, the other side of the cylinder bottom of the reverse cylinder B15 is connected with one side of the cylinder bottom of the forward cylinder C18 through the connecting hose 24 and the one-way valve 16, the other side of the cylinder bottom of the forward cylinder C18 is connected with one side of the cylinder bottom of the reverse cylinder C17 through the connecting hose 24 and the one-way valve 16, the other side of the cylinder bottom of the reverse cylinder C17 is connected with the air outlet pipe 11, the double-headed piston rod hydraulic cylinder 10 is fixed in the middle space 27 of the ring plate 4, cylinder end covers A12 and B34 are respectively arranged at the two ends of the double-headed piston rod hydraulic cylinder 10, a piston A43 is arranged in the middle of the double-headed piston rod hydraulic cylinder 10, the inner ends of piston rods A13 and C35 are respectively fixedly connected to the two sides of the piston A43, the middle parts of the piston rods A13 and C35 are respectively arranged in the rod holes 36 in the middle parts of the cylinder end covers A12 and B34 which have sealing mechanisms, Y-shaped plates A14 and B22 are respectively arranged at the outer ends of the piston rods A13 and C35, the outer ends of the three flat plates of the Y-shaped plate A14 are respectively connected with the piston rods B21 of the three reverse cylinders, the outer ends of the three flat plates of the Y-shaped plate B22 are respectively connected with the piston rods of the three forward cylinders, the Y-shaped plate A14 and the three reverse cylinder piston rods B21 are driven to advance by the piston rod A13 to obtain synchronous air suction, at this time, the Y-shaped plate B22 is driven to form the advancement of the piston rod B21 by the piston rod C35 to obtain synchronous air exhaust, the anti-collision nets 20 for protecting the Y-shaped plates A14 and B22 are respectively arranged at the two ends of the ring plate 4, and the double-headed piston rod hydraulic cylinder 10 is connected with the oil supply hydraulic cylinders A54 and B55 through the hydraulic pipes A1 and B2 close to the two ends.

[0027] The accompanying drawings Figures 1 to 6Six U-shaped recesses 5 are evenly distributed around the outer edge surface of the ring plate 4. Three U-shaped recesses 5 near the two ends of the ring plate 4 are respectively provided with an outward flared hole 30. Multiple flat head screws are connected with the screw holes of the outer edge connecting plate 25 near the two ends of the double-headed piston rod hydraulic cylinder 10 after passing through the outward flared hole 30. The screwing end of the flat head screw is hidden in the outward flared hole 30. The reverse cylinder A7, the reverse cylinder B15 and the reverse cylinder C17 are respectively placed in the first U-shaped recess 5.1, the third U-shaped recess 5.3 and the fifth U-shaped recess 5.5 of the six U-shaped recesses on the outer edge surface of the ring plate 4. The forward cylinder A8, the forward cylinder C18 and the forward cylinder B9 are respectively placed in the second U-shaped recess 5.2, the fourth U-shaped recess 5.4 and the sixth U-shaped recess 5.6 of the six U-shaped recesses on the outer edge surface of the ring plate 4. Multiple screw holes B29 are respectively arranged on both sides of the outer port of each U-shaped recess 5 of the six U-shaped recesses 5. Multiple screws 26 are respectively connected with the screw holes B29 after passing through the light hole 31 on both sides of the cover plate 6, forming the fixation of the three reverse cylinders and the three forward cylinders. Multiple screw holes A28 are respectively arranged on the lower sides of the ring plate 4. Multiple screws are respectively connected with the screw holes A28 after passing through the light hole 31 arranged on the supporting leg 19. A handle 3 is arranged on the upper part of the ring plate 4.

[0028] The accompanying drawings Figure 1 , 5Or 6, the double-headed piston rod hydraulic cylinder 10 includes a cylinder body, a piston A43, a piston rod A13, a piston rod C35, a sealing ring A41, a cylinder end cover A12, a locking ring A40, a sealing ring A38, a cylinder end cover B34, a locking ring B45, a sealing ring B46 and a sealing ring B44, a plurality of embedded sealing rings 42 are arranged on the outer edge surface of the piston A43, the outer edge surface of the piston A43 is in clearance fit with the inner surface of the cylinder body of the double-headed piston rod hydraulic cylinder 10, the outer edge surface of the embedded sealing ring 42 is in interference fit with the inner surface of the cylinder body of the double-headed piston rod hydraulic cylinder 10, the inner ends of the piston rod A13 and the piston rod C35 are respectively fixedly connected to the middle of the two surfaces of the piston A43, external threads are respectively arranged on the outer ends of the piston rod A13 and the piston rod C35, the cylinder end cover A12 is fixedly connected to the upper opening of the double-headed piston rod hydraulic cylinder 10, a ring pipe 47 is arranged on the inner surface of the cylinder end cover A12, the locking ring A40 is connected to the ring pipe 47, the sealing ring A38 is arranged between the lower end surface of the ring pipe 47 and the inner protruding ring 39 arranged on the lower inner wall of the locking ring A40, the middle outer edge surface of the piston rod A13 is in sliding fit with the sealing ring A38, the plug-in ring A37 close to the outer edge on the inner surface of the cylinder end cover A12 is connected to the upper opening of the cylinder body of the double-headed piston rod hydraulic cylinder 10, and the sealing ring A41 is arranged between the double-headed piston rod hydraulic cylinder 10 and the cylinder end cover A12; the inner surface of the end plate 48 of the cylinder end cover B34 is provided with a ring pipe 47, the locking ring B45 is connected to the ring pipe 47, the sealing ring B46 is arranged between the upper end surface of the ring pipe 47 and the inner protruding ring 39 arranged on the upper inner wall of the locking ring B45, the middle outer edge surface of the piston rod C35 is in sliding fit with the sealing ring B46, the plug-in ring B49 close to the outer edge on the lower part of the inner surface of the cylinder end cover B34 is connected to the lower opening of the cylinder body of the double-headed piston rod hydraulic cylinder 10, and the sealing ring B44 is arranged between the double-headed piston rod hydraulic cylinder 10 and the cylinder end cover B34; the outer edge surface of the double-headed piston rod hydraulic cylinder 10 close to the two ends is respectively provided with a connecting pipe A32 and a connecting pipe B33, the connecting pipe A32 is used for connecting the hydraulic pipe B2, and the connecting pipe B33 is used for connecting the hydraulic pipe A1.

[0029] The accompanying drawings Figure 7The push rod 50 is arranged on the upper rear end of the board 61, the wheels 62 are arranged on the lower part of the board 61, the oil supply hydraulic cylinder A 54 and the oil supply hydraulic cylinder B 55 are arranged on the support 67 on the upper rear part of the board 61 in parallel, the pressing plate 53 arranged on the upper part of the oil supply hydraulic cylinder A 54 and the oil supply hydraulic cylinder B 55 is fixedly connected with the support 67 through the locking screw 51, the piston B 56 is arranged in the oil supply hydraulic cylinder A 54 and the oil supply hydraulic cylinder B 55, the outer middle part of the two pistons B 56 is hingedly connected with the inner end of the piston plate B 68 and the piston plate A 57, the outer end of the piston plate B 68 and the piston plate A 57 is connected with the connecting rod shaft between the outer end of the two crank arms A 60 and the two crank arms B 65 on both sides of the crankshaft journal 63, the two crank arms A 60 and the two crank arms B 65 are arranged in the radial opposite direction of the crankshaft journal 63, the front end shaft 59 is fixedly connected with the inner end of one of the two crank arms A 60, the other end of the front end shaft 59 is connected with the motor 58, the inner end of one of the two crank arms B 65 is connected with the inner ring of the bearing on the upper part of the support seat 64 through the rear end shaft, the outer ring of the bearing on the upper part of the support seat 64 is fixed by the shaft cover 66, the oil supply hydraulic cylinder A 54 and the oil supply hydraulic cylinder B 55 are respectively connected with the double-head piston rod hydraulic cylinder 10 through the hydraulic pipe A 1 and the hydraulic pipe B 2, the control console 52 of the control motor 58 is arranged on the other side of the upper rear part of the board 61.

[0030] The light and movable gas compressor is implemented according to the present application Figures 1 to 7The method for using the application, before use, the two oil chambers of the piston A43 of the double-headed piston rod hydraulic cylinder 10, the hydraulic pipe A1, the hydraulic pipe B2, the oil supply hydraulic cylinder A54 and the oil supply hydraulic cylinder B55 are filled with hydraulic oil; the control console 52 is connected to the power supply; when in use, the invention is taken to the use site by using the handle 3 on the upper part of the ring plate 4, then the air inlet pipe 23 is connected to the gas source (such as a nitrogen cylinder, an argon cylinder, a carbon dioxide cylinder or other inert gas cylinder, etc.) according to the needs, the exhaust pipe 11 is connected to the device that needs to inject compressed gas through a suitable joint, the motor 58 is started by the control console 52 and drives the front end shaft 59 of the crankshaft to rotate, at this time, the two crank arms A60 and the two crank arms B65 driven by the front end shaft 59 rotate, the two crank arms A60 drive the piston plate A57 and the two crank arms B65 drive the piston plate B68 to make the pistons B56 of the oil supply hydraulic cylinder B55 and the oil supply hydraulic cylinder A54 move in and out alternately, at this time, the hydraulic oil in one of the oil supply hydraulic cylinder B55 and the oil supply hydraulic cylinder A54 is pressed by the hydraulic pipe A1 into the oil chamber formed in the lower part of the piston A43 of the double-headed piston rod hydraulic cylinder 10, after being pressed, the piston A43 moves upward and drives the piston rods of the Y-shaped plate B22 and the reverse cylinders A7, B15 and C17 to move upward, when the piston rods of the reverse cylinders A7, B15 and C17 move upward, the gases in the three reverse cylinders are compressed and enter the forward cylinders A8, C18 and the device through the connecting hose 24 and the one-way valve 16 and the exhaust pipe 11 respectively, while the forward cylinder B9 inhales gas through the air inlet pipe 23 and the one-way valve 16; in the process of continuous rotation of the front end shaft 59, the hydraulic oil in the oil supply hydraulic cylinder A54 is pressed by the hydraulic pipe B2 into the oil chamber formed in the upper part of the piston A43 of the double-headed piston rod hydraulic cylinder 10, the hydraulic oil in the lower part of the piston A43 of the double-headed piston rod hydraulic cylinder 10 is returned to the oil supply hydraulic cylinder B55 through the hydraulic pipe A1, after being pressed, the piston A43 moves upward and drives the Y-shaped plate A14, at this time, the Y-shaped plate A14 drives the piston rods of the forward cylinders A8, B9 and C18 to move downward, the gases in the forward cylinders B9, A8 and C18 are compressed and enter the reverse cylinders A7, B15 and C17 respectively through the connecting hose 24 and the one-way valve 16, so as to realize six-stage compression of the gases.

[0031] Further, the intake pipe 23 is connected to the forward cylinder B9 through the one-way valve 16 for one-way air supply, the forward cylinder B9 is connected to the reverse cylinder A7 through the connecting hose 24 and the one-way valve 16 for one-way air supply, the reverse cylinder A7 is connected to the forward cylinder A8 through the connecting hose 24 and the one-way valve 16 for one-way air supply, the forward cylinder A8 is connected to the reverse cylinder B15 through the connecting hose 24 and the one-way valve 16 for one-way air supply, the reverse cylinder B15 is connected to the forward cylinder C18 through the connecting hose 24 and the one-way valve 16 for one-way air supply, the forward cylinder C18 is connected to the reverse cylinder C17 through the connecting hose 24 and the one-way valve 16 for one-way air supply, and the reverse cylinder C17 is connected to the exhaust pipe 11 for one-way air output.

[0032] The preferred embodiments of the present application have been described in detail above, but it should be understood that various modifications and changes can be made by those skilled in the art after reading the disclosure of the present application. These equivalent forms also fall within the scope of the appended claims of the present application.

[0033] The parts of the present application not described in detail are the prior art.

Claims

1. A light and portable gas compressor comprising a ring plate (4), a forward cylinder, a reverse cylinder, an air inlet pipe (23), a one-way valve (16), a connecting hose (24), an air outlet pipe (11), a double-end piston rod hydraulic cylinder (10), a hydraulic pipe A (1), a hydraulic pipe B (2) and a hydraulic cylinder, characterized in that Three positive air cylinders and three reverse air cylinders are evenly fixed on the outer edge surface of the ring plate (4), the cylinder ports of the three positive air cylinders and the three reverse air cylinders are staggered, one positive air cylinder is flanked by a reverse air cylinder, and one reverse air cylinder is flanked by a positive air cylinder, the intake pipe (23) is connected to one side of the cylinder bottom of the positive air cylinder B (9) through a one-way valve (16), the other side of the positive air cylinder B (9) is connected to one side of the cylinder bottom of the reverse air cylinder A (7) through a connecting hose (24) and a one-way valve (16), the other side of the cylinder bottom of the reverse air cylinder A (7) is connected to one side of the cylinder bottom of the positive air cylinder A (8) through a connecting hose (24) and a one-way valve (16), the other side of the cylinder bottom of the positive air cylinder A (8) is connected to one side of the cylinder bottom of the reverse air cylinder B (15) through a connecting hose (24) and a one-way valve (16), the other side of the cylinder bottom of the reverse air cylinder B (15) is connected to one side of the cylinder bottom of the positive air cylinder C (18) through a connecting hose (24) and a one-way valve (16), the other side of the cylinder bottom of the positive air cylinder C (18) is connected to one side of the cylinder bottom of the reverse air cylinder C (17) through a connecting hose (24) and a one-way valve (16), and the other side of the cylinder bottom of the reverse air cylinder C (17) is connected to the exhaust pipe (11); the double-head piston rod hydraulic cylinder (10) is fixed in the middle space (27) of the ring plate (4), cylinder end covers A (12) and B (34) are respectively arranged at both ends of the double-head piston rod hydraulic cylinder (10), a piston A (43) is arranged in the middle of the double-head piston rod hydraulic cylinder (10), the inner ends of piston rods A (13) and C (35) are respectively fixedly connected to the two sides of the piston A (43), the middle parts of the piston rods A (13) and C (35) are respectively inserted into the rod holes (36) in the middle parts of the cylinder end covers A (12) and B (34) which have sealing mechanisms, Y-shaped plates A (14) and B (22) are respectively arranged at the outer ends of the piston rods A (13) and C (35), the outer ends of the three flat plates of the Y-shaped plate A (14) are respectively connected to the piston rods B (21) of the three reverse air cylinders, the outer ends of the three flat plates of the Y-shaped plate B (22) are respectively connected to the piston rods of the three positive air cylinders, the advance of the Y-shaped plate A (14) and the three reverse air cylinder piston rods B (21) is driven by the advance of the piston rod A (13) to obtain synchronous air suction, at this time, the advance of the piston rod B (21) is driven by the piston rod C (35) to form the advance of the piston rod B (21) and obtain synchronous air exhaust; the double-head piston rod hydraulic cylinder (10) is connected to the oil supply hydraulic cylinders A (54) and B (55) through hydraulic pipes A (1) and B (2) close to the two ends.

2. The lightweight portable gas compressor of claim 1, wherein the compressor is configured to be carried by a user on the user's back. The outer edge surface of the ring plate (4) is evenly distributed with six U-shaped recesses (5), the reverse cylinder A (7), the reverse cylinder B (15) and the reverse cylinder C (17) are respectively placed in the first U-shaped recess (5.1), the third U-shaped recess (5.3) and the fifth U-shaped recess (5.5) of the six U-shaped recesses (5) on the outer edge surface of the ring plate (4), the positive cylinder A (8), the positive cylinder C (18) and the positive cylinder B (9) are respectively placed in the second U-shaped recess (5.2), the fourth U-shaped recess (5.4) and the sixth U-shaped recess (5.6) of the six U-shaped recesses (5) on the outer edge surface of the ring plate (4), a plurality of screw holes B (29) are respectively arranged on both sides of the outer opening of each U-shaped recess (5) of the six U-shaped recesses (5), a plurality of screws (26) are respectively connected with the screw holes B (29) through the light holes (31) on both sides of the cover plate (6) to form the fixation of the three reverse cylinders and the three positive cylinders.

3. The light weight portable gas compressor of claim 1, wherein: Screw holes A (28) are respectively arranged on both sides of the lower part of the ring plate (4), and a plurality of screws are respectively connected with the screw holes A (28) through the light holes (31) arranged on the supporting legs (19).

4. The light-weight portable gas compressor of claim 1, wherein: A handle (3) is arranged on the upper part of the ring plate (4).

5. The light-weight portable gas compressor of claim 1, wherein: Expanded hole (30) is arranged on the ring plate (4) near the two ends of the three U-shaped recesses (5), and a plurality of flat head screws are connected with the screw holes of the double-headed piston rod hydraulic cylinder (10) near the two end outer edge connecting plates (25) through the expanded hole (30), and the screwing end of the flat head screw is hidden in the expanded hole (30).

6. The light-weight portable gas compressor of claim 1, wherein: The double-head piston rod hydraulic cylinder (10) comprises a cylinder body, a piston A (43), a piston rod A (13), a piston rod C (35), a sealing ring A (41), a cylinder end cover A (12), a locking ring A (40), a sealing ring A (38), a cylinder end cover B (34), a locking ring B (45), a sealing ring B (46) and a sealing ring B (44), a plurality of embedded sealing rings (42) are arranged on the outer edge surface of the piston A (43), the outer edge surface of the piston A (43) is in clearance fit with the inner surface of the cylinder body of the double-head piston rod hydraulic cylinder (10), the outer edge surface of the embedded sealing ring (42) is in interference fit with the inner surface of the cylinder body of the double-head piston rod hydraulic cylinder (10), the inner ends of the piston rod A (13) and the piston rod C (35) are respectively fixedly connected to the middle of the two surfaces of the piston A (43), external threads are arranged on the outer ends of the piston rod A (13) and the piston rod C (35), the cylinder end cover A (12) is fixedly connected to the upper opening of the double-head piston rod hydraulic cylinder (10), a ring pipe is arranged on the middle of the inner surface of the cylinder end cover A (12), the locking ring A (40) is connected to the ring pipe, the inner protruding ring (39) arranged on the inner wall of the lower part of the locking ring A (40) is arranged between the lower end surface of the ring pipe and the sealing ring A (38), the middle outer edge surface of the piston rod A (13) is in sliding fit with the sealing ring A (38), the plug-in ring A (37) arranged on the inner surface of the cylinder end cover A (12) and close to the outer edge is connected to the upper opening of the cylinder body of the double-head piston rod hydraulic cylinder (10), and the sealing ring A (41) is arranged between the double-head piston rod hydraulic cylinder (10) and the cylinder end cover A (12); the ring pipe (47) is arranged on the middle of the inner surface of the end plate (48) of the cylinder end cover B (34), the locking ring B (45) is connected to the ring pipe (47), the inner protruding ring (39) arranged on the inner wall of the upper part of the locking ring B (45) is arranged between the upper end surface of the ring pipe (47) and the sealing ring B (46), the middle outer edge surface of the piston rod C (35) is in sliding fit with the sealing ring B (46), the plug-in ring B (49) arranged on the lower part of the inner surface of the cylinder end cover B (34) and close to the outer edge is connected to the lower opening of the cylinder body of the double-head piston rod hydraulic cylinder (10), and the sealing ring B (44) is arranged between the double-head piston rod hydraulic cylinder (10) and the cylinder end cover B (34).

7. The light-weight portable gas compressor of claim 1, wherein: The outer edge surface of the double-head piston rod hydraulic cylinder (10) is provided with a connecting pipe A (32) and a connecting pipe B (33) close to the two ends, respectively, the connecting pipe A (32) is used for connecting the hydraulic pipe B (2), and the connecting pipe B (33) is used for connecting the hydraulic pipe A (1).

8. The light-weight portable gas compressor of claim 1, wherein: The anti-collision nets (20) are arranged on the two ends of the ring plate (4).

9. The light-weight portable gas compressor of claim 1, wherein: The oil supply hydraulic cylinder A (54) and the oil supply hydraulic cylinder B (55) are arranged in parallel on the support (67) on the upper rear side of the vehicle plate (61), the pressing plate (53) arranged on the upper part of the oil supply hydraulic cylinder A (54) and the oil supply hydraulic cylinder B (55) is fixedly connected with the support (67) through the locking screw (51), the oil supply hydraulic cylinder A (54) and the oil supply hydraulic cylinder B (55) are respectively provided with the piston B (56), the outer part of the two pistons B (56) is respectively hingedly connected with the inner end of the piston plate B (68) and the piston plate A (57), the outer end of the piston plate B (68) and the piston plate A (57) is respectively connected with the connecting rod shaft between the outer end of the two crank arms A (60) and the two crank arms B (65) on both sides of the crankshaft journal (63), the two crank arms A (60) and the two crank arms B (65) are respectively arranged in the radial opposite direction of the crankshaft journal (63), one end of the front end shaft (59) is fixedly connected with the inner end of one of the two crank arms A (60), the other end of the front end shaft (59) is connected with the motor (58); one of the inner ends of the two crank arms B (65) is connected with the inner ring of the bearing on the upper part of the support base (64) through the rear end shaft, the outer ring of the bearing on the upper part of the support base (64) is fixed by the shaft cover (66); the oil supply hydraulic cylinder A (54) and the oil supply hydraulic cylinder B (55) are respectively connected with the double-head piston rod hydraulic cylinder (10) through the hydraulic pipe A (1) and the hydraulic pipe B (2), the control console (52) of the control motor (58) is arranged on the other side of the upper rear part of the vehicle plate (61).

10. The light-weight portable gas compressor of claim 9, wherein: The push rod (50) is arranged on the upper rear end of the vehicle plate (61), and the wheels (62) are respectively arranged on the lower part around the vehicle plate (61).

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