Low-noise vehicle-mounted electric inflator pump

Abstract

The invention relates to the technical field of vehicle-mounted inflator pumps, in particular to a low-noise vehicle-mounted electric inflator pump which comprises a box body, first partition plates are arranged on the left side and the right side of the front side of the top of the box body, a transverse plate is arranged on the middle side of the top of the box body, a second partition plate is arranged in the middle of the rear side of the top of the box body, and a top plate is arranged on the top of the box body. First mounting seats are symmetrically arranged between the two first partition plates up and down, and a cylinder body is arranged between the two first mounting seats. Due to the design of the noise reduction assembly and the limiting assembly, noise generated when the motor and the eccentric gear rotate at a high speed and noise generated when the air cylinder connecting rod and the cylinder cover move are remarkably reduced. And an elastic sheet and an arc-shaped seat in the noise reduction assembly and an elastic piece and an arc-shaped plate in the limiting assembly act together, so that the vibration of the motor is effectively absorbed, and the transmission of the vibration to the box body and the external environment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle-mounted air pumps, and in particular to a low-noise vehicle-mounted electric air pump. Background Art

[0002] As a convenient air pressure filling device, the operation of the electric air pump depends on the efficient operation of the internal motor. The working principle of the device can be briefly described as follows: after the motor is started, during the air extraction stage, the communicating valve is automatically opened by the atmospheric pressure, allowing external gas to flow into the cylinder; when inflating, as the internal air pressure of the cylinder rises, the communicating valve is pressurized and closed, causing the gas to be pushed into the tire.

[0003] In the current design of electric air pumps, the motor and bracket are integrated into a whole, in which the motor and gear set are cleverly placed in a dedicated space inside the bracket to ensure smooth power transmission. In order to improve the flexibility of the rotating parts, the eccentric gear is deliberately set outside the bracket. Generally speaking, in this layout, the motor and eccentric gear are located below the bracket, and the cylinder is placed above. This design not only facilitates the conversion of the direction of movement, but also greatly optimizes the overall structure of the air pump, making it more compact.

[0004] However, it is worth noting that a significant drawback of existing air pumps is the exposure of their moving parts. The motor and eccentric gear will generate significant noise when rotating at high speed, and the movement of the connecting rod and cylinder head of the cylinder is also accompanied by non-ignorable sound. These noise sources together constitute noise pollution to the surrounding environment, affecting the user experience and the tranquility of the surrounding environment. Therefore, the optimization design of the noise control of the air pump is particularly urgent. Therefore, a low-noise vehicle-mounted electric air pump is needed. Summary of the invention

[0005] In order to overcome the fact that the motor and eccentric gear of the vehicle-mounted electric air pump generate significant noise when rotating at high speed, and the connecting rod and cylinder head of the cylinder also produce noise that cannot be ignored. These noise sources together constitute the disadvantage of noise pollution to the surrounding environment. Technical problem: Provide a low-noise vehicle-mounted electric air pump.

[0006] The technical solution of the present invention is: a low-noise vehicle-mounted electric air pump, including a box body, a first partition, a horizontal plate, a second partition, a top plate, a first mounting seat, a cylinder body, a noise reduction component, a motor, a limit component, a small gear, a large gear, a piston, a connecting rod, an air outlet, an air inlet, an air pipe, a skateboard, a battery and an isolation component, the first partition is arranged on the left and right sides of the front top of the box body, a horizontal plate is arranged on the middle side of the top of the box body, a second partition is arranged in the middle of the rear side of the top of the box body, a top plate is arranged on the top of the box body, a first mounting seat is symmetrically arranged between the two first partitions, a cylinder body is arranged between the two first mounting seats, a noise reduction component capable of reducing the noise of the motor is arranged in the area between the box body and the second partition, and a groove capable of further fixing the motor is arranged at the bottom of the top plate. A limiting component, a large gear is rotatably provided on the left side wall of the second partition, a small gear is provided on the output shaft of the motor, the small gear meshes with the large gear, an isolation component capable of reducing noise of the large gear and the small gear is provided on the left side wall of the second partition, a piston is slidably provided in the cylinder body, a connecting rod is rotatably provided on the piston, the other end of the connecting rod is rotatably connected to the biased position of the large gear, an air outlet is embedded in the center of the front side of the cylinder body, an air inlet is embedded in the biased front side of the cylinder body, an air pipe is provided on the air outlet, an inflation head is provided on the air pipe, a slide plate is slidably provided on the front side of the box body, a slot is provided on the slide plate, and the slot is used to clamp the air pipe, a battery is provided on the rear side of the top of the box body near the isolation component, and the battery is connected to the motor through a line.

[0007] Preferably, the noise reduction component includes a second mounting seat, an elastic sheet and an arc seat. The second mounting seat is arranged in the area between the box body and the second partition plate. An elastic sheet is arranged at intervals on the top of the second mounting seat. An arc seat is arranged on the top of the elastic sheet. A motor is mounted on the arc seat.

[0008] Preferably, the limiting assembly includes a fixed seat, an elastic member and an arc plate, a fixed seat is arranged at the bottom of the top plate, elastic members are symmetrically arranged on the fixed seat, an arc plate is arranged at the bottom of the elastic member, and the arc plate cooperates with the upper part of the motor.

[0009] Preferably, the isolation assembly includes an installation box, an injection tube, a sealing plate and an isolation plate. An installation box is provided on the left side wall of the second partition plate. The installation box has an installation groove for loading large gears and small gears. An injection tube is embedded in the top of the installation box. A sealing plate is provided on the left side of the installation box, and an isolation plate is provided on the left side of the sealing plate.

[0010] Preferably, a placement component is also included, which includes a first sliding block, a sliding plate, a fixed column, a limit plate and a pull rod. A sliding groove is opened on the right side of the front top of the box body, and the first sliding block is slidably arranged in the sliding groove of the box body. A sliding plate is arranged on the top of the first sliding block, and a fixed column is arranged on the rear side of the top of the sliding plate. The fixed column is symmetrically provided with limit plates above and below, and a straight groove for clamping the air pipe is opened on the limit plate, and a pull rod is arranged on the sliding plate.

[0011] Preferably, it also includes an installation box and a support assembly, an installation box is arranged at the bottom of the box body, and an auxiliary support assembly is arranged in the installation box, the support assembly includes a second sliding block, a connecting plate, a support frame, a cylindrical gear and a rack, a sliding groove is symmetrically opened at the bottom of the installation box, a second sliding block is slidably arranged on the sliding groove at the bottom of the installation box, a connecting plate is arranged on the second sliding block, a sliding groove is opened at the top of the installation box, the lower part of the first sliding block is fixedly connected to the adjacent connecting plate, support frames are arranged at both ends of the left and right ends of the connecting plate, a cylindrical gear is symmetrically rotatably arranged on the middle side of the bottom of the box body, and racks are arranged on the support frames near the ends of the adjacent cylindrical gears, the front and rear two racks are meshed with the adjacent cylindrical gears, and the two adjacent racks are staggered up and down.

[0012] Preferably, a vent is provided at the rear side of the box body near the motor.

[0013] Preferably, a sound-absorbing layer of a bubble layer is provided between the box body and the first partition.

[0014] The present invention has the following advantages:

[0015] 1. The noise reduction component and limit component design of this device significantly reduce the noise generated by the high-speed rotation of the motor and eccentric gear, as well as the movement of the cylinder connecting rod and the cylinder head. The elastic sheet and arc seat (with built-in sound-absorbing cotton) in the noise reduction component and the elastic member and arc plate (with a sound-absorbing layer with a bubble layer on the inside) in the limit component work together to effectively absorb the vibration of the motor and reduce the transmission of vibration to the box and the external environment. This design not only weakens the amount of vibration on the path of transmission of motor vibration to the box, but also weakens the resonance phenomenon between the motor and the box, thereby achieving a significant noise reduction effect. In addition, the sound insulation felt set in the first mounting seat further improves the sound absorption effect of the cylinder body, which greatly reduces the overall noise level.

[0016] 2. In addition to the noise reduction design, the present invention also has many other practical functions. For example, by setting up the placement component, the user can easily take the air pipe and connect it with the tire's inflation port through the inflation head, which improves the convenience of inflation. At the same time, the design of the support component allows the device to be stably placed on the ground when inflating, and can effectively reduce the transmission of noise even if the contact area is small. In addition, the mounting box, sealing plate and isolation plate not only protect the large gear and small gear, reducing the transmission of noise, but also allow the user to add lubricating liquid through the injection tube to prevent the large gear and small gear from hard matching and generating noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of a first partial three-dimensional structure of the present invention.

[0019] Figure 3 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0020] Figure 4 It is a schematic diagram of a third partial three-dimensional structure of the present invention.

[0021] Figure 5 It is a schematic diagram of a partial explosion structure of the present invention.

[0022] Figure 6 It is a schematic diagram of the explosion structure of the isolation assembly of the present invention.

[0023] Figure 7 It is a schematic diagram of the installation structure for placing components of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the support assembly of the present invention.

[0025] Description of the accompanying drawings: 1_box, 2_first partition, 3_cross plate, 4_second partition, 5_top plate, 6_first mounting seat, 7_cylinder, 8_noise reduction component, 81_second mounting seat, 82_elastic sheet, 83_arc seat, 9_motor, 10_limiting component, 101_fixed seat, 102_elastic member, 103_arc plate, 11_small gear, 12_large gear, 13_piston, 14_connecting rod, 15_air outlet, 16_air inlet, 17_trachea, 18_slide plate, 19_battery, 20_isolation assembly, 201_installation box, 202_installation groove, 203_injection tube, 204_sealing plate, 205_isolation plate, 21_placing assembly, 211_slide groove, 212_first sliding block, 213_sliding plate, 214_fixing column, 215_limiting plate, 216_pull rod, 22_installation box, 23_support assembly, 231_second sliding block, 232_connecting plate, 233_support frame, 234_column gear, 235_rack. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Embodiment: A low-noise vehicle-mounted electric air pump, such as Figure 1-6As shown, it includes a box body 1, a first partition plate 2, a transverse plate 3, a second partition plate 4, a top plate 5, a first mounting seat 6, a cylinder body 7, a noise reduction component 8, a motor 9, a limit assembly 10, a small gear 11, a large gear 12, a piston 13, a connecting rod 14, an air outlet 15, an air inlet 16, an air pipe 17, a slide plate 18, a battery 19 and an isolation component 20. The first partition plates 2 are provided on the left and right sides of the top front of the box body 1 by screw connection, the transverse plate 3 is provided on the middle side of the top of the box body 1 by screw connection, the second partition plate 4 is provided in the middle of the top rear side of the box body 1, and the top plate 5 is provided on the top of the box body 1 by bolt connection. The first mounting seat 6 is symmetrically provided between the two first partition plates 2, and the first mounting seat 6 is provided with a sound insulation felt. The two first mounting A cylinder body 7 is arranged between the seats 6, a noise reduction component 8 capable of reducing the noise of the motor 9 is arranged in the area between the box body 1 and the second partition plate 4, and the noise reduction component 8 includes a second mounting seat 81, an elastic sheet 82 and an arc seat 83, a second mounting seat 81 is arranged in the area between the box body 1 and the second partition plate 4, an elastic sheet 82 is arranged at intervals on the top of the second mounting seat 81, an arc seat 83 is arranged on the top of the elastic sheet 82, sound-absorbing cotton is arranged in the arc seat 83, and the motor 9 is installed on the arc seat 83, a limiting component 10 capable of further fixing the motor 9 is arranged at the bottom of the top plate 5, the limiting component 10 includes a fixing seat 101, an elastic member 102 and an arc plate 103, a fixing seat 101 is arranged at the bottom of the top plate 5, and elastic members 102 are symmetrically arranged on the fixing seat 101, The elastic member 102 is a compression spring, and an arc plate 103 is arranged at the bottom of the elastic member 102. The inner side of the arc plate 103 has a sound-absorbing layer of a bubble layer. The arc plate 103 cooperates with the upper part of the motor 9. The left side wall of the second partition plate 4 is rotatably provided with a large gear 12. A small gear 11 is arranged on the output shaft of the motor 9. The small gear 11 meshes with the large gear 12. The left side wall of the second partition plate 4 is provided with an isolation component 20 that can reduce the noise of the large gear 12 and the small gear 11. The isolation component 20 includes an installation box 201, an injection tube 203, a sealing plate 204 and an isolation plate 205. The left side wall of the second partition plate 4 is provided with an installation box 201. The installation box 201 has an installation groove 202 for loading the large gear 12 and the small gear 11. The top of the installation box 201 is embedded A liquid injection pipe 203 is arranged in a sliding manner, a sealing plate 204 is arranged on the left side of the installation box 201, an isolation plate 205 is arranged on the left side of the sealing plate 204, and the isolation plate 205 is composed of multiple layers of sound-absorbing materials. A piston 13 is slidably arranged in the cylinder body 7, and a connecting rod 14 is rotatably arranged on the piston 13. The other end of the connecting rod 14 is rotatably connected to the large gear 12 at a biased position. An air outlet 15 is embedded in the center of the front side of the cylinder body 7, and an air inlet 16 is embedded in the biased front side of the cylinder body 7. An air pipe 17 is arranged on the air outlet 15, and an inflation head is arranged on the air pipe 17. A slide plate 18 is slidably arranged on the front side of the box body 1, and the slide plate 18 has a slot, and the slot of the slide plate 18 is used to clamp the air pipe 17. A battery 19 is arranged at the rear side of the top of the box body 1 near the isolation component 20.The battery 19 is connected to the motor 9 through a line, a vent is provided at the rear side of the box body 1 near the motor 9, and a sound-absorbing layer of a bubble layer is provided between the box body 1 and the first partition 2.

[0028] like Figure 3 , Figure 7 and Figure 8 As shown, it also includes a placement component 21, which includes a first sliding block 212, a sliding plate 213, a fixed column 214, a limit plate 215 and a pull rod 216. A sliding groove 211 is opened on the right side of the top front side of the box body 1, and the first sliding block 212 is slidably arranged in the sliding groove 211 of the box body 1. A sliding plate 213 is arranged on the top of the first sliding block 212, and a fixed column 214 is arranged on the rear side of the top of the sliding plate 213. The fixed column 214 is symmetrically provided with a limit plate 215 above and below. A straight groove for clamping the air pipe 17 is opened on the limit plate 215, and a pull rod 216 is arranged on the sliding plate 213.

[0029] like Figure 3 , Figure 7 and Figure 8 As shown, it also includes an installation box 22 and a support assembly 23. The installation box 22 is arranged at the bottom of the box body 1. The installation box 22 is provided with an auxiliary support assembly 23. The support assembly 23 includes a second sliding block 231, a connecting plate 232, a support frame 233, a cylindrical gear 234 and a rack 235. The bottom of the installation box 22 is symmetrically provided with sliding grooves. The second sliding block 231 is slidably arranged on the sliding groove at the bottom of the installation box 22. The second sliding block 231 is provided with a connecting plate 232. Plate 232, a slide groove 211 is opened on the top of the installation box 22, the lower part of the first sliding block 212 is fixedly connected to the adjacent connecting plate 232, support frames 233 are arranged at both ends of the connecting plate 232, and a cylindrical gear 234 is symmetrically rotatably arranged on the left and right sides of the bottom middle side of the box body 1, and a rack 235 is arranged near the end of the adjacent cylindrical gear 234 on the support frame 233, and the front and rear two racks 235 are meshed with the adjacent cylindrical gear 234, and the two adjacent front and rear racks 235 are staggered up and down.

[0030] When the car needs to be inflated, the staff slides the slide plate 18 to the left and then pulls the pull rod 216 forward. The pull rod 216 drives the sliding plate 213 to move forward, and then the limit plate 215 drives the air pipe 17 to move forward, which is convenient for the staff to take and connect with the inflation port of the tire through the inflation head. At the same time, when the sliding plate 213 moves forward, it will drive the front connecting plate 232 to move forward through the first sliding block 212. The connecting plate 232 drives the cylindrical gear 234 to rotate through the rack 235. The cylindrical gear 234 drives the rear rack 235 to move backward, thereby realizing the extension of the four support frames 233. The arc-shaped support frames 233 are in contact, so that the contact area between the device and the ground is small, reducing the transmission of noise.

[0031] The elastic sheet 82 and arc seat 83 of the noise reduction component 8, the arc seat 83 has sound-absorbing cotton inside, the elastic member 102 and arc plate 103 of the limit component 10, the arc plate 103 has a sound-absorbing layer with a bubble layer inside, the vibration generated by the motor 9 will be absorbed and dispersed by these elastic sheets 82 and elastic members 102, thereby reducing the transmission of vibration to the box body 1 and the external environment, the noise reduction component 8 and the limit component 10 are both used to weaken the vibration of the motor 9 in the path from the motor 9 to the box body 1, so that the resonance phenomenon of the motor 9 and the box body 1 is weakened, and the noise reduction effect is achieved. A sound insulation felt is arranged in the first mounting seat 6 to further improve the sound absorption effect of the cylinder body 7. The mounting box 201, the sealing plate 204 and the isolation plate 205 protect the large gear 12 and the small gear 11 to reduce the transmission of noise. At the same time, lubricating liquid can be added according to the injection tube 203 to prevent the large gear 12 and the small gear 11 from hard matching to generate noise.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-noise vehicle-mounted electric air pump, characterized in that: The invention comprises a box body (1), wherein first partitions (2) are arranged on the left and right sides of the top front side of the box body (1), a horizontal plate (3) is arranged on the middle side of the top of the box body (1), a second partition (4) is arranged on the middle part of the top rear side of the box body (1), a top plate (5) is arranged on the top of the box body (1), a first mounting seat (6) is symmetrically arranged between the two first partitions (2), a cylinder body (7) is arranged between the two first mounting seats (6), a noise reduction component (8) capable of reducing the noise of the motor (9) is arranged in the area between the box body (1) and the second partition (4), a limiter component (10) capable of further fixing the motor (9) is arranged at the bottom of the top plate (5), a large gear (12) is rotatably arranged on the left side wall of the second partition (4), a small gear (11) is arranged on the output shaft of the motor (9), the small gear (11) is meshed with the large gear (12), and a cylinder (7) is arranged on the left side wall of the second partition (4) An isolation assembly (20) capable of reducing noise of the large gear (12) and the small gear (11), a piston (13) is slidably arranged in the cylinder body (7), a connecting rod (14) is rotatably arranged on the piston (13), the other end of the connecting rod (14) is rotatably connected to the large gear (12) at an offset position, an air outlet (15) is embedded in the center of the front side of the cylinder body (7), and an air inlet (16) is embedded in the offset front side of the cylinder body (7) The air outlet (15) is provided with an air pipe (17), and the air pipe (17) is provided with an air charging head. A slide plate (18) is slidably provided on the front side of the box body (1), and the slide plate (18) has a straight groove, and the straight groove of the slide plate (18) is used to clamp the air pipe (17). The battery (19) is provided on the rear side of the top of the box body (1) near the isolation component (20), and the battery (19) is connected to the motor (9) through a line.

2. A low-noise vehicle-mounted electric air pump as claimed in claim 1, characterized in that: The noise reduction component (8) comprises a second mounting seat (81), the second mounting seat (81) being arranged in an area between the box body (1) and the second partition plate (4), an elastic sheet (82) being arranged at a spacing on the top of the second mounting seat (81), an arc seat (83) being arranged on the top of the elastic sheet (82), and a motor (9) being mounted on the arc seat (83).

3. A low-noise vehicle-mounted electric air pump as claimed in claim 2, characterized in that: The limiting assembly (10) comprises a fixing seat (101), the fixing seat (101) is arranged at the bottom of the top plate (5), an elastic member (102) is symmetrically arranged on the fixing seat (101), an arc plate (103) is arranged at the bottom of the elastic member (102), and the arc plate (103) cooperates with the upper part of the motor (9).

4. A low-noise vehicle-mounted electric air pump as claimed in claim 3, characterized in that: The isolation assembly (20) comprises an installation box (201), the installation box (201) being arranged on the left side wall of the second partition plate (4), the installation box (201) being provided with an installation slot (202) for loading the large gear (12) and the small gear (11), an injection pipe (203) being embedded in the top of the installation box (201), a sealing plate (204) being arranged on the left side of the installation box (201), and an isolation plate (205) being arranged on the left side of the sealing plate (204).

5. A low-noise vehicle-mounted electric air pump as claimed in claim 4, characterized in that: It also includes a placement component (21), the placement component (21) includes a first sliding block (212), a sliding groove (211) is opened on the right side of the top front side of the box body (1), the first sliding block (212) is slidably arranged in the sliding groove (211) of the box body (1), a sliding plate (213) is arranged on the top of the first sliding block (212), a fixed column (214) is arranged on the rear side of the top of the sliding plate (213), and a limiting plate (215) is symmetrically arranged above and below the fixed column (214), and a straight groove is opened on the limiting plate (215) for clamping the air pipe (17), and a pull rod (216) is arranged on the sliding plate (213).

6. A low-noise vehicle-mounted electric air pump as claimed in claim 5, characterized in that: The box body (1) further comprises an installation box (22) and a support assembly (23). The installation box (22) is arranged at the bottom of the box body (1). The installation box (22) is provided with an auxiliary support assembly (23). The support assembly (23) comprises a second sliding block (231). The bottom of the installation box (22) is provided with sliding grooves symmetrically arranged front and back. The second sliding block (231) is slidingly arranged on the sliding groove at the bottom of the installation box (22). The second sliding block (231) is provided with a connecting plate (232). The top of the installation box (22) is provided with a sliding groove (21 1), the lower part of the first sliding block (212) is fixedly connected to the adjacent connecting plate (232), the left and right ends of the connecting plate (232) are both provided with support frames (233), a column gear (234) is symmetrically rotatably provided on the middle side of the bottom of the box body (1), the support frame (233) is provided with a rack (235) near the end of the adjacent column gear (234), the front and rear two racks (235) are both meshed with the adjacent column gear (234), and the two adjacent racks (235) are staggered up and down.

7. A low-noise vehicle-mounted electric air pump as claimed in claim 6, characterized in that: A ventilation opening is provided on the rear side of the box body (1) near the motor (9).

8. A low-noise vehicle-mounted electric air pump as claimed in claim 7, characterized in that: A sound-absorbing layer of a bubble layer is provided between the box body (1) and the first partition plate (2).

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