A low power consumption and noise reduction structure for air compressor

Abstract

The present invention discloses a low-power consumption and noise reduction structure for an air compressor, and relates to the technical field of air compressors; it comprises an electric motor, a compressor main unit, an oil-gas separator, and an air filter installed in a chassis; the air inlet end of the compressor main unit is connected to the air outlet end of the air filter through a connecting pipe, and the electric motor and the compressor main unit are connected through a coupling. The advantages are: the silencer hose can directly reduce and silence the airflow passing through during use, and can produce slight deformation with the movement of the noise reduction plate 1 and the noise reduction plate 2, and continuously change the flow path of the airflow in the silencer hose, so that the airflow collides with the silencer hose at different positions, and the sound waves generated by the collision can continuously rebound in the silencer hose, thereby slowly dissipating, and at the same time, different sound waves can be staggered to offset each other to a certain extent, which can further improve the noise reduction effect.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, and in particular to a low-power consumption and noise reduction structure of an air compressor. Background Art

[0002] An air compressor is a device that converts the mechanical energy of an electric motor into gas pressure energy, and compresses the air to meet the corresponding use. It includes a chassis, an electric motor, a compressor host, and an air intake motor. Currently, low-power electric motors and low-power compressor hosts (such as energy-saving air compressors) have appeared on the market to reduce overall power consumption. At the same time, noise is reduced by installing sound-absorbing cotton in the chassis.

[0003] However, the sound-absorbing cotton does not effectively reduce the noise generated by the air intake motor. This part of the noise is mainly generated during the airflow transportation process (the airflow is disturbed and noise is generated in the form of sound waves). For this reason, we propose a noise reduction structure to solve the above problem. Summary of the invention

[0004] The purpose of the present invention is to solve the problems raised in the background technology and to propose a low-power consumption and noise reduction structure for an air compressor.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A low-power consumption and noise reduction structure for an air compressor, comprising an electric motor, a compressor main unit, an oil-gas separator, and an air filter installed in a chassis, wherein an air inlet end of the compressor main unit is connected to an air outlet end of the air filter through a connecting pipe, the electric motor and the compressor main unit are connected through a coupling, and an air outlet end of the compressor main unit is also connected to an inlet end of the oil-gas separator through a connecting pipe, an air collecting hood is fixedly installed in the chassis, and a closed area is formed between the air collecting hood and the chassis, and a noise reduction air inlet component is installed on the air collecting hood;

[0007] A noise reduction cylinder is fixedly installed in the air collecting hood, and a pipeline is fixedly connected between the noise reduction cylinder and the air filter. A noise reduction plate 1 and a noise reduction plate 2 are sealed and rotatably installed in the noise reduction cylinder. A plurality of noise reduction holes are opened on the noise reduction plate 1 and the noise reduction plate 2. A silencer hose is installed between the corresponding noise reduction holes. A direction-changing rotating component is installed between the noise reduction plate 1, the noise reduction plate 2 and the noise reduction cylinder.

[0008] A driving assembly is installed between the wind collecting cover, the second noise reduction plate and the noise reduction air inlet component.

[0009] In the above-mentioned low-power consumption and noise reduction structure of an air compressor, the noise reduction air inlet component includes an air inlet motor, a rotating disc, air inlet blades, an air inlet cylinder, and an air collecting hood. The air inlet motor is fixedly mounted on the air collecting hood. A rotating disc is fixedly mounted on the driving end of the air inlet motor via a shaft, and the rotating disc is sealingly and rotatably mounted on the air collecting hood. A plurality of air inlet blades are fixedly mounted at equal intervals along the circumference on one side of the rotating disc. The air collecting hood is fixedly connected to the air inlet cylinder, and an air collecting hood is fixedly mounted on one side of the air collecting hood, and the air inlet cylinder is communicated with the air collecting hood.

[0010] In the above-mentioned low-power noise reduction structure of an air compressor, a plurality of limit grooves are symmetrically opened on the inner wall of the noise reduction cylinder, and limit blocks matching the limit grooves are fixedly installed on the outer sides of the noise reduction plate 1 and the noise reduction plate 2, and sealing rubber that is sealed to the inner wall of the noise reduction cylinder is fixedly installed on the noise reduction plate 1 and the noise reduction plate 2.

[0011] In the above-mentioned low-power consumption and noise reduction structure of an air compressor, the direction-changing rotating component includes arcuate inner teeth, arcuate outer teeth, a mounting frame, and a direction-changing gear. The second noise reduction plate is fixedly mounted with arcuate inner teeth, the first noise reduction plate is fixedly mounted with arcuate outer teeth, two mounting frames are fixedly mounted in the noise reduction cylinder, a direction-changing gear is rotatably mounted between the two mounting frames, and the direction-changing gear is simultaneously meshed with the arcuate inner teeth and the arcuate outer teeth.

[0012] In the above-mentioned low-power consumption and noise reduction structure of an air compressor, the driving assembly includes shaft one, shaft two, shaft three, a reciprocating screw, a transmission structure, and a direction-changing transmission component. A shaft one is fixedly installed at the center of the noise reduction plate two, and shaft two, shaft three and a reciprocating screw are rotatably installed on the air collecting cover. A group of transmission structures are sleeved and installed between shaft two and the transmission structure, between shaft three and the reciprocating screw, and between the shafts. A direction-changing transmission component is installed between the reciprocating screw and shaft two.

[0013] In the above-mentioned low-power and noise reduction structure of an air compressor, the change-direction transmission component includes a bar gear, a transmission gear, and a support assembly. A bar gear is slidably installed on one side of the air collecting hood through the support assembly. The two ends of the reciprocating screw are cylindrically arranged, and the middle position is a bidirectional threaded arrangement. The bar gear is threadedly installed on the reciprocating screw, and one end of the shaft two is fixedly installed with a transmission gear meshing with the bar gear.

[0014] In the above-mentioned low-power consumption and noise reduction structure of an air compressor, the support assembly includes a support bar, a step groove, and a step block. A support bar is fixedly installed on one side of the bar gear, and a step groove is opened on the support bar. A step block matching the step groove is fixedly installed on the air collecting hood.

[0015] In the above-mentioned low-power consumption and noise reduction structure of an air compressor, the lower end of the compressor main unit is installed in the chassis through a plurality of shock absorbers, and the lower end of the motor is installed in the chassis through the cooperation of a shock absorbing plate and a plurality of shock absorbers.

[0016] In the above-mentioned low-power consumption and noise reduction structure of an air compressor, a plurality of sound-absorbing cotton panels are fixedly mounted on the wind collecting hood, the wind concentrating hood and the inner wall of the chassis.

[0017] In the above-mentioned low-power consumption and noise reduction structure for an air compressor, the shape of the air inlet cylinder is an hourglass shape.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1: The silencer hose can directly reduce the noise of the airflow passing through it during use. At the same time, the slight deformation caused by the movement of the noise reduction plate 1 and the noise reduction plate 2 is used to continuously change the flow path of the airflow in the silencer hose, so that the airflow collides with the silencer hose at different positions. The sound waves generated by the collision can continuously rebound in the silencer hose and then slowly dissipate. At the same time, different sound waves can offset each other to a certain extent, which can further improve the noise reduction effect.

[0020] 2: By utilizing the cooperation of the reciprocating screw, the bar gear and other corresponding structures, one of the air inlet motors can drive the noise reduction plate 1 and the noise reduction plate 2 to reciprocate within a certain angle when working in one direction, thereby effectively improving the noise reduction effect produced by the silencer hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a low-power consumption and noise reduction structure for an air compressor proposed by the present invention;

[0022] Figure 2 for Figure 1 Another structural diagram from another angle without the front part of the chassis;

[0023] Figure 3 for Figure 1 The back side of the chassis without the back part of the structure diagram;

[0024] Figure 4 for Figure 3 Schematic diagram of the structure after removing the radiator;

[0025] Figure 5 for Figure 4 Another perspective and the schematic diagram of the structure without the two sides of the chassis;

[0026] Figure 6 for Figure 5 An enlarged schematic diagram of the structure of the central air hood from another perspective;

[0027] Figure 7 for Figure 6 Another perspective and the schematic diagram of the structure after removing the oil-gas separator, wind hood and pipeline;

[0028] Figure 8 for Figure 7 An enlarged schematic diagram of the structure of a single air inlet motor part from another perspective;

[0029] Fig. 9 for Figure 7 A schematic diagram of the structure from another perspective after removing a group of air intake motor related structures;

[0030] Fig.10 for Fig. 9 A schematic diagram of the structure from another perspective;

[0031] Fig.11 for Fig.10 A schematic diagram of the structure of the middle silencer hose from another perspective;

[0032] Fig.12 for Fig.11 A schematic structural diagram of the middle arc-shaped inner tooth portion from another perspective;

[0033] Fig.13 for Figure 7 Schematic diagram of the structure of a single noise reduction tube from another perspective.

[0034] In the figure: 1, chassis; 2, motor; 3, compressor host; 4, oil-gas separator; 5, air filter; 6, coupling; 7, shock absorber plate; 8, shock absorber; 9, wind collector; 10, air inlet motor; 11, rotating disc; 12, air inlet blades; 13, air inlet tube; 14, pipeline; 15, wind collector; 16, noise reduction tube; 17, noise reduction groove; 18, limit block; 19, limit groove; 20, noise reduction board 1; 21, noise reduction board 2; 22, noise reduction hole; 23, silencer Hose; 24, sealing rubber; 25, rod one; 26, arc-shaped inner teeth; 27, rod two; 28, arc-shaped outer teeth; 29, mounting frame; 30, changing gear; 31, shaft one; 32, support block one; 33, shaft two; 34, shaft three; 35, reciprocating screw; 36, transmission structure; 37, bar gear; 38, transmission gear; 39, support bar; 40, step groove; 41, step block; 42, support block two; 43, radiator; 44, heat dissipation motor; 45 heat dissipation blades. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Reference Figure 1-Figure 13 A low-power consumption and noise reduction structure for an air compressor comprises an electric motor 2, a compressor main unit 3, an oil-gas separator 4, and an air filter 5 installed in a chassis 1. The air inlet end of the compressor main unit 3 is connected to the air outlet end of the air filter 5 through a connecting pipe. The electric motor 2 and the compressor main unit 3 are connected through a coupling 6. The air outlet end of the compressor main unit 3 is also connected to the air inlet end of the oil-gas separator 4 through a connecting pipe. The above parts are all prior arts.

[0037] The coupling 6 adopts a coupling 6 with a shock absorbing function, and a plurality of sound-absorbing cotton panels are fixedly installed on the inner wall of the chassis 1, which can preliminarily block the propagation of noise; at the same time, the lower end of the compressor main unit 3 is installed in the chassis 1 through a plurality of shock absorbers 8, and the lower end of the motor 2 is installed in the chassis 1 through a shock absorbing plate 7 and a plurality of shock absorbers 8, thereby further achieving a noise reduction effect.

[0038] Reference Figure 1-Figure 13 , an air collecting hood 9 is fixedly installed in the chassis 1 (a sound-absorbing cotton board with a shape matching the air collecting hood 9 can be fixedly set in the air collecting hood 9), the upper end of the air collecting hood 9 is opened, and a relatively sealed interval is formed after cooperating with the chassis 1, and an air inlet motor 10 is fixedly installed on one side of the air collecting hood 9 (the side close to the compressor host 3), and a rotating disc 11 is fixedly installed on the driving end of the air inlet motor 10 through a shaft, and the rotating disc 11 is sealed and rotatably installed on the air collecting hood 9, and a plurality of air inlet blades 12 are fixedly installed symmetrically along the circumference of the rotating disc 11 on the part of the rotating disc 11 located in the air collecting hood 9, and an air inlet cylinder 13 matching the rotating disc 11 is fixedly connected on the other side of the air collecting hood 9 (the air inlet cylinder 13 can be directly made of sound-absorbing material or a layer of sound-absorbing cotton can be laid on its surface), and the air inlet cylinder 13 is a hollow setting connected at both ends, and the specific shape is similar to the hourglass type (reference Figure 7 , Figure 8), this shape can accelerate the air flow to a certain extent, and at the same time can produce a certain noise reduction effect when the air flows through here to a certain extent (the airflow can produce collision when it contacts the inner wall of the air inlet tube 13, and the sound waves generated by the collision can produce a certain rebound in the air inlet tube 13, thereby compensating for the noise caused by the increase in gas flow rate); a wind collecting cover 15 is fixedly arranged on the other side of the wind collecting cover 9, and the air inlet tube 13 is connected to the wind collecting cover 15 (the wind collecting cover 15 can also be directly made of sound-absorbing material or a layer of sound-absorbing cotton can be laid on its surface, or a sound-absorbing cotton board can be installed on it), and the specific shape of the wind collecting cover 15 is as follows Figure 4 As shown, the four sides have a certain slope, which is convenient for better wind gathering and produces a better air suction and intake effect. At the same time, the noise reduction effect of the wind gathering cover 15 is utilized to reduce the noise increased by wind gathering.

[0039] Under normal circumstances, the airflow generated by the operation of the compressor main unit 3 can meet the rotation requirements of the air inlet blades 12, but in special circumstances, the air inlet motor 10 can also be turned on to drive the air inlet blades 12 to rotate and supply air.

[0040] A heat dissipation motor 44 is also fixedly mounted on the air collecting cover 9, and a heat dissipation blade 45 is fixedly mounted on the driving shaft of the heat dissipation motor 44. At the same time, a radiator 43 matching with the heat dissipation blade 45 is fixedly arranged between the chassis 1 and the air collecting cover 9. This part is a prior art, so it is not described in detail. At the same time, an air outlet cylinder (refer to the arrangement of the air inlet cylinder 13) can also be installed in this part, and a sealing partition (not marked in the figure, Figure 6 Not drawn), so that this part and the above-mentioned air inlet part do not affect each other and operate independently of each other.

[0041] Reference Figure 1-Figure 13A noise reduction cylinder 16 is fixedly installed in the wind collecting cover 9, a noise reduction groove 17 is opened on one side of the noise reduction cylinder 16, and a pipe 14 is fixedly connected to the other side, and one end of the pipe 14 is sealed and passes through the wind collecting cover 9 and is connected to the oil-gas separator 4; a plurality of limit grooves 19 are symmetrically opened in the noise reduction cylinder 16, and the limit grooves 19 are arc-shaped. The limit grooves 19 on the same vertical plane are a group, and a limit block 18 is slidably installed on each limit groove 19. The limit block 18 can slide at a certain angle relative to the limit groove 19, and the limit blocks 18 are in the same vertical plane. A plurality of limit blocks 18 on a vertical surface are grouped together. A noise reduction plate 20 is fixedly installed together in one group of limit blocks 18. A noise reduction plate 21 is fixedly installed together in another group of limit blocks 18. The shape, size and material of the noise reduction plate 20 and the noise reduction plate 21 are the same (sound-absorbing material, such as glass fiber sound-absorbing board). They are named separately here for the convenience of subsequent understanding. A plurality of noise reduction holes 22 are opened on the noise reduction plate 20 and the noise reduction plate 21 (to facilitate the normal circulation of gas). A sound-absorbing plate 22 is fixedly installed between some of the corresponding noise reduction holes 22. The hose 23 (the other part is not installed because it ensures that the gas can always flow normally, and because of the arrangement of the arc-shaped inner teeth 26 and other structures, it is not easy to install the silencer hose 23 in this part), the silencer hose 23 preferably has a certain elasticity, which can further ensure normal use when the noise reduction plate 1 20 and the noise reduction plate 21 rotate relative to each other at a certain angle (the silencer hose 23 without elasticity can also be used, because it has multiple layers of folds, which can meet the slight deformation required for relative rotation at a certain angle, but it is preferably elastic), the silencer hose 23 can directly reduce and silence the airflow passing through during use, and at the same time, the slight deformation caused by the rotation of the noise reduction plate 1 20 and the noise reduction plate 21 is used to continuously change the flow path of the airflow in the silencer hose 23, so that the airflow collides with the silencer hose 23 at different positions, and the sound waves generated by the collision can continuously rebound in the silencer hose 23, thereby slowly dissipating, and at the same time, the different sound waves can be staggered to offset each other to a certain extent, which can further improve the noise reduction effect.

[0042] A layer of sealing rubber 24 is fixedly installed on the noise reduction plate 1 20 and the noise reduction plate 2 21, and the sealing rubber 24 is used to ensure the sealing effect of the noise reduction plate 1 20 and the noise reduction plate 2 21 relative to the noise reduction tube 16 to prevent the airflow from flowing out from the contact position between each other (the outflow will generate a certain amount of noise, and will also weaken the noise reduction effect of the silencer hose 23 to a certain extent); an arc-shaped inner tooth 26 is fixedly installed on the side of the noise reduction plate 21 close to the noise reduction plate 1 20 through a plurality of rods 1 25, and an arc-shaped outer tooth 28 is fixedly installed on the side of the noise reduction plate 1 20 close to the noise reduction plate 21 through a plurality of rods 27. Two mounting frames 29 are fixedly installed in the noise tube 16 (the setting of the mounting frames 29 will not affect the normal swing of the rod 1 25, the arc-shaped inner teeth 26, the rod 27, and the arc-shaped outer teeth 28) (swinging means that the arc-shaped inner teeth 26 and the arc-shaped outer teeth 28 will only reciprocate within a certain angle range), and a changing gear 30 is rotatably installed between the two mounting frames 29. The changing gear 30 is meshed with the arc-shaped inner teeth 26 and the arc-shaped outer teeth 28 at the same time. By using this part of the structure in coordination, the rotation directions of the noise reduction plate 1 20 and the noise reduction plate 2 21 can be opposite, so that the silencer hose 23 can better reduce noise.

[0043] Reference Figure 1-Figure 13 , a shaft 1 31 is fixedly installed at the center of the circle of the side of the noise reduction plate 21 away from the noise reduction plate 1 20, two support blocks 1 32 are fixedly installed on the side of the wind collecting cover 9 close to the motor 2, and a shaft 2 33 is rotatably installed on the two support blocks 1 32, and a shaft 34 is rotatably installed on the side of the wind collecting cover 9 close to the motor 2, and a support block 2 42 is fixedly installed on the adjacent side of the side, and a reciprocating screw 35 is rotatably installed on the support block 2 42, and a transmission structure 36 is sleeved and installed between the shaft 1 31 and the shaft 2 33, between the shaft 34 and the reciprocating screw 35, and between the shaft 34 and the shaft rod, and the transmission structure 36 is used to transmit power (the transmission structure 36 is a prior art and is not specifically described here), and it is sealed and slidable in a transmission structure 36 and penetrates the wind collecting cover 9;

[0044] A step block 41 is fixedly installed on the air collecting hood 9, and a support bar 39 is slidably installed on the step block 41 (the support bar 39 has a step groove 40 that matches the step block 41), a bar gear 37 is fixedly installed on one side of the support bar 39, and a circular through hole is opened in the bar gear 37, and a moving block is fixedly installed in the circular through hole, and the moving block is threadedly connected to the reciprocating screw 35 (the two ends of the reciprocating screw 35 are smoothly set, and the middle section is a bidirectional thread setting), and a transmission gear 38 meshing with the bar gear 37 is fixedly installed on the second shaft 33, and when the reciprocating screw 35 rotates, it can drive the bar gear 37 to move back and forth, and the reciprocating motion of the bar gear 37 can make the transmission gear 38 swing at a certain angle, and the swing required by the noise reduction plate 21 is achieved by utilizing this swing.

[0045] At the same time, a sound absorbing cover (not shown) can be arranged outside the air collecting cover 9 to absorb the sound. Fig.10 The bar gear 37, transmission gear 38, reciprocating screw 35, shaft three 34 and transmission structure 36 shown are isolated and noise-reduced (without affecting normal use); the naming of the technical features in the text is for ease of understanding, and some of them are functionally named, such as the transmission gear 38 refers to a gear with a transmission function, which will not be elaborated one by one here.

[0046] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0047] In the present invention, when the air inlet motor 10 is working, the air inlet blade 12 is driven to rotate by the rotating disc 11, and the air inlet blade 12 is used to inhale the external air, and the inhaled gas enters the oil-gas separator 4 through the noise reduction cylinder 16 and the pipeline 14;

[0048] When the gas enters the noise reduction cylinder 16, a small part of the gas flows out directly through the noise reduction holes 22 on the noise reduction plate 21 and the noise reduction plate 1 20 (with a certain noise reduction effect), and most of the gas will pass through the silencer hose 23 for better noise reduction. When one of the air inlet motors 10 is working, the reciprocating screw 35 is driven to rotate through the cooperation of the shaft 3 34 and the corresponding two transmission structures 36. The rotation of the reciprocating screw 35 drives the bar gear 37 to move back and forth, and the reciprocating movement drives the transmission gear 38 to reciprocate at a certain angle. The rotation of the transmission gear 38 drives the shaft 1 31 to rotate through the cooperation of the shaft 2 33 and the transmission structure 36, thereby driving the noise reduction plate 2 21 to swing;

[0049] The swing of the noise reduction plate 21 drives the noise reduction plate 1 20 to swing through the cooperation of the arc-shaped inner teeth 26, the changing gear 30 and the arc-shaped outer teeth 28, and the swinging directions of the noise reduction plate 1 20 and the noise reduction plate 2 21 are opposite. The noise reduction plate 1 20 and the noise reduction plate 2 21 are swung alternately (one to the left and the other to the right) to cause a slight deformation of the silencer hose 23, thereby better reducing noise.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-power consumption and noise reduction structure for an air compressor, comprising an electric motor (2), a compressor main unit (3), an oil-gas separator (4), and an air filter (5) installed in a chassis (1), wherein the air inlet end of the compressor main unit (3) and the air outlet end of the air filter (5) are connected via a connecting pipe, the electric motor (2) and the compressor main unit (3) are connected via a coupling (6), and the air outlet end of the compressor main unit (3) and the air inlet end of the oil-gas separator (4) are also connected via a connecting pipe, characterized in that: An air collecting hood (9) is fixedly installed in the chassis (1), and a closed area is formed between the air collecting hood (9) and the chassis (1), and a noise reduction air inlet component is installed on the air collecting hood (9); A noise reduction cylinder (16) is fixedly installed in the air collecting cover (9), and a pipe (14) is fixedly connected between the noise reduction cylinder (16) and the air filter (5). A noise reduction plate 1 (20) and a noise reduction plate 2 (21) are sealed and rotatably installed in the noise reduction cylinder (16). A plurality of noise reduction holes (22) are provided on the noise reduction plate 1 (20) and the noise reduction plate 2 (21). A silencer hose (23) is installed between two of the corresponding noise reduction holes (22). A direction-changing rotating component is installed between the noise reduction plate 1 (20), the noise reduction plate 2 (21) and the noise reduction cylinder (16); A driving assembly is installed between the air collecting cover (9), the second noise reduction plate (21) and the noise reduction air inlet component.

2. The low power consumption and noise reduction structure of an air compressor according to claim 1, characterized in that: The noise reduction air intake component comprises an air intake motor (10), a rotating disc (11), air intake blades (12), an air intake cylinder (13), and an air collecting hood (15); the air intake motor (10) is fixedly mounted on the air collecting hood (9); a rotating disc (11) is fixedly mounted on the driving end of the air intake motor (10) via a shaft, and the rotating disc (11) is sealed and rotatably mounted on the air collecting hood (9); a plurality of air intake blades (12) are fixedly mounted at equal intervals along a circumference on one side of the rotating disc (11); the air intake cylinder (13) is fixedly connected to the air collecting hood (9); the air collecting hood (15) is fixedly mounted on one side of the air collecting hood (9), and the air intake cylinder (13) is connected to the air collecting hood (15).

3. The low power consumption and noise reduction structure of an air compressor according to claim 1, characterized in that: The inner wall of the noise reduction cylinder (16) is symmetrically provided with a plurality of limit grooves (19); the outer sides of the noise reduction plate 1 (20) and the noise reduction plate 2 (21) are fixedly provided with limit blocks (18) matching with the limit grooves (19); and the noise reduction plate 1 (20) and the noise reduction plate 2 (21) are fixedly provided with sealing rubber (24) sealingly fitted with the inner wall of the noise reduction cylinder (16).

4. The low power consumption and noise reduction structure of an air compressor according to claim 1, characterized in that: The direction-changing rotating component comprises an arcuate inner tooth (26), an arcuate outer tooth (28), a mounting frame (29), and a direction-changing gear (30); the arcuate inner tooth (26) is fixedly mounted on the second noise reduction plate (21); the arcuate outer tooth (28) is fixedly mounted on the first noise reduction plate (20); two mounting frames (29) are fixedly mounted in the noise reduction cylinder (16); a direction-changing gear (30) is rotatably mounted between the two mounting frames (29), and the direction-changing gear (30) is meshed with the arcuate inner tooth (26) and the arcuate outer tooth (28) at the same time.

5. The low power consumption and noise reduction structure of an air compressor according to claim 1, characterized in that: The driving assembly comprises a first shaft (31), a second shaft (33), a third shaft (34), a reciprocating screw (35), a transmission structure (36), and a direction-changing transmission component. A first shaft (31) is fixedly mounted at the center of the second noise reduction plate (21). The second shaft (33), the third shaft (34), and the reciprocating screw (35) are rotatably mounted on the wind collecting cover (9). A group of transmission structures (36) are sleeved and mounted between the second shaft (33) and the transmission structure (36), between the third shaft (34) and the reciprocating screw (35), and between the shaft. A direction-changing transmission component is installed between the reciprocating screw (35) and the second shaft (33).

6. The low power consumption and noise reduction structure of an air compressor according to claim 5, characterized in that: The direction-changing transmission component comprises a bar gear (37), a transmission gear (38), and a support assembly; a bar gear (37) is slidably mounted on one side of the air collecting cover (9) via the support assembly; both ends of the reciprocating screw (35) are cylindrically arranged, and a bidirectional thread is arranged in the middle; the bar gear (37) is threadedly mounted on the reciprocating screw (35); and a transmission gear (38) meshing with the bar gear (37) is fixedly mounted on one end of the second shaft (33).

7. The low power consumption and noise reduction structure of an air compressor according to claim 6, characterized in that: The support assembly comprises a support bar (39), a stepped groove (40), and a stepped block (41); a support bar (39) is fixedly mounted on one side of the bar gear (37), and a stepped groove (40) is provided on the support bar (39); and a stepped block (41) matched with the stepped groove (40) is fixedly mounted on the air collecting hood (9).

8. The low power consumption and noise reduction structure of an air compressor according to claim 1, characterized in that: The lower end of the compressor main unit (3) is installed in the case (1) via a plurality of shock absorbers (8), and the lower end of the motor (2) is installed in the case (1) via a shock absorbing plate (7) in cooperation with the plurality of shock absorbers (8).

9. The low power consumption and noise reduction structure of an air compressor according to claim 1, characterized in that: The wind collecting cover (9), the wind concentrating cover (15) and the inner wall of the chassis (1) are all fixedly mounted with a plurality of sound-absorbing cotton panels.

10. The low power consumption and noise reduction structure of an air compressor according to claim 2, characterized in that: The air inlet cylinder (13) is in the shape of an hourglass.

Images