Swing arm anti-scratching structure of inflator pump

Abstract

The utility model discloses an inflator pump swing arm anti-scratching structure which comprises a barrel shell, a driving mechanism is installed in the barrel shell, an inclined swing piece is arranged in the barrel shell, a plurality of swing arms are evenly and fixedly arranged on the peripheral side of the inclined swing piece, connecting holes are formed in the tops of the swing arms in a penetrating mode, and a round plate is fixedly arranged at the upper end in the barrel shell. A plurality of piston holes are annularly and longitudinally formed in the top of the circular plate at equal angles in a penetrating mode, pistons are arranged in the piston holes in a matched mode, piston rods are fixedly arranged at the bottoms of the pistons, connecting ball heads are fixedly arranged at the bottoms of the piston rods, and anti-scratching gaskets are fixedly arranged at the bottom of the circular plate; according to the air pump, the problems that in an existing air pump, the inclined swinging part is prone to rubbing with the inner wall of the shell in the swinging process, large noise is generated due to rubbing, the use experience of a user is affected, the service life of the user is prolonged, and the service life of the user is prolonged are solved. And in addition, the oblique swinging piece can be abraded after a long time, and the service life of the oblique swinging piece is shortened.

Description

Technical Field

[0001] This utility model relates to the field of anti-scratch structure technology, and in particular to an anti-scratch structure for an air pump swing arm. Background Technology

[0002] An air pump is a device used to move air from one place to another. It compresses gas by mechanical means and then delivers the compressed gas to the place where it is needed.

[0003] In the operation of an air pump, the oscillation of the inclined swing arm is a key element in achieving gas pumping. The inclined swing arm pushes the piston through periodic oscillation, thereby completing the process of gas intake and exhaust. However, in existing air pumps, the inclined swing arm is prone to rubbing against the inner wall of the housing during the oscillation process. This rubbing not only generates significant noise, affecting the user experience, but also causes wear and tear on the inclined swing arm over time, reducing its service life. Therefore, this utility model proposes an anti-scratching structure for the swing arm of an air pump to solve the above problems. Summary of the Invention

[0004] In view of the defects of the existing technology, the purpose of this utility model is to provide an anti-scratching structure for the swing arm of an air pump.

[0005] To achieve the above objectives, this utility model provides an anti-scratching structure for an air pump swing arm, comprising a cylindrical shell, a driving mechanism installed inside the cylindrical shell, an inclined swing member disposed inside the cylindrical shell, a plurality of swing arms evenly fixedly disposed on the periphery of the inclined swing member, a connecting hole penetrating through the top of the swing arms, a circular plate fixedly disposed at the upper end inside the cylindrical shell, a plurality of piston holes longitudinally penetrating through the top of the circular plate at equal angles, a piston being fitted inside the piston holes, a piston rod being fixedly disposed at the bottom of the piston, a connecting ball head being fixedly disposed at the bottom of the piston rod, and an anti-scratching washer being fixedly disposed at the bottom of the circular plate, the driving mechanism being used to drive the inclined swing member to swing and periodically push and pull the piston in reciprocating motion.

[0006] Furthermore, the driving mechanism includes a motor, which is installed on one side of the bottom of the cylindrical shell. The output end of the motor passes through the cylindrical shell and is equipped with an output gear. An eccentric wheel is rotatably arranged inside the cylindrical shell. The eccentric wheel meshes with the output gear. An eccentric rod is installed above the eccentric wheel, and an inclined swing member is installed above the eccentric rod.

[0007] Furthermore, the connection ball head and the connection hole cooperate to connect the piston and the inclined rocker arm, the inner wall of the anti-scratching washer is smoothly provided, and the rocker arm slides in contact with the anti-scratching washer.

[0008] Furthermore, an eccentric hole is provided at the top of the eccentric rod, and the central axis of the eccentric hole forms a certain angle with the rotation axis of the eccentric wheel. One end of the drive shaft is inserted into the eccentric hole, and an inclined swing member is installed at the other end of the drive shaft. The drive shaft is connected to the center position of the inclined swing member.

[0009] Furthermore, a through hole is provided at the bottom of the cylindrical shell, and the output end of the motor passes through the through hole.

[0010] Furthermore, a rotating rod is fixedly provided at the bottom of the eccentric wheel, and the rotating rod is rotatably installed at the bottom of the cylindrical shell.

[0011] Furthermore, a connecting block is fixedly installed on the top of the eccentric wheel, and the eccentric rod is fixedly installed on the top of the connecting block.

[0012] Furthermore, an air suction pipe is installed on the other side of the bottom of the cylindrical shell. The air suction pipe penetrates the cylindrical shell, and the penetration point between the air suction pipe and the cylindrical shell is sealed.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model provides an anti-scratching washer between the inclined swing component and the inner wall of the cylindrical shell. During the swinging process, the inclined swing component slides and contacts the smooth inner wall of the anti-scratching washer, which effectively avoids direct scraping between the inclined swing component and the inner wall of the cylindrical shell, reduces the noise caused by scraping, creates a quieter usage environment for users, and improves the user experience.

[0015] When the smooth inner wall of the anti-scratch washer of this utility model slides into contact with the connecting block, the friction is small, thereby reducing the wear of the inner wall of the cylindrical shell on the inclined swinging component during the swinging process, extending the service life of the inclined swinging component, and reducing maintenance costs.

[0016] The anti-scratching structure of this utility model allows the inclined swing component to swing more smoothly, avoiding swing jamming or abnormal vibration caused by scraping, ensuring the smoothness of piston reciprocating motion, and improving the stability of gas pumping.

[0017] The motor of the drive mechanism of this utility model is installed on one side of the bottom of the cylindrical shell. The eccentric wheel meshes with the output gear at the output end of the motor. The eccentric rod is connected to the inclined swing component. The layout of the entire drive mechanism and the inclined swing component is compact and reasonable, with high space utilization. Attached Figure Description

[0018] To more clearly illustrate the solutions in this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an exploded perspective view provided by this utility model;

[0020] Figure 2 This is an exploded perspective view of the drive mechanism provided by this utility model;

[0021] Figure 3 This is a schematic diagram of the structure provided by this utility model;

[0022] Figure 4 This is a schematic diagram of the piston structure provided by this utility model;

[0023] Figure 5 This is an enlarged schematic diagram of part A provided by this utility model;

[0024] Figure 6 This is a top view provided by this utility model;

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Piston hole; 2. Drive mechanism; 21. Motor; 22. Eccentric wheel; 23. Drive shaft; 24. Swing arm; 25. Eccentric hole; 26. Output gear; 27. Connecting hole; 28. Inclined swing element; 29. ​​Rotating rod; 3. Through hole; 4. Anti-scratch washer; 5. Circular plate; 6. Connecting block; 7. Eccentric rod; 8. Piston rod; 9. Connecting ball head; 10. Piston; 11. Cylindrical shell; 12. Intake pipe. Detailed Implementation

[0027] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order.

[0029] Please see Figure 1-6 An anti-scratching structure for an air pump swing arm includes a cylindrical shell 11, an inclined swing member 28 inside the cylindrical shell 11, a drive mechanism 2 installed on one side of the bottom of the cylindrical shell 11, and an air suction pipe 12 installed on the other side of the bottom of the cylindrical shell 11. The air suction pipe 12 passes through the cylindrical shell 11, and the passage between the air suction pipe 12 and the cylindrical shell 11 is sealed to prevent air leakage at the connection between the air suction pipe 12 and the cylindrical shell 11. The drive mechanism 2 includes a motor 21, which is installed on one side of the bottom of the cylindrical shell 11. The motor 21 can be eccentrically set so that the air suction pipe 12 can be set in a relatively central position to ensure the flow rate sucked in by the plunger pump.

[0030] As an improvement to the above technical solution, the output end of the motor 21 passes through the cylindrical shell 11 and is equipped with an output gear 26. A through hole 3 is provided at the bottom of the cylindrical shell 11. The output end of the motor 21 passes through the through hole 3. An eccentric wheel 22 is rotatably arranged inside the cylindrical shell 11. A rotating rod 29 is fixedly arranged at the bottom of the eccentric wheel 22. The rotating rod 29 is rotatably installed at the bottom of the cylindrical shell 11. The eccentric wheel 22 is meshed with the output gear 26. The motor 21 can be offset from the eccentric wheel 22 so that the rotation center of the eccentric wheel 22 is set at the center of the air pump.

[0031] As an improvement to the above technical solution, an eccentric rod 7 is installed above the eccentric wheel 22, a connecting block 6 is fixedly installed on the top of the eccentric wheel 22, an eccentric rod 7 is fixedly installed on the top of the connecting block 6, an inclined swing member 28 is installed above the eccentric rod 7, an eccentric hole 25 is opened on the top of the eccentric rod 7, the central axis of the eccentric hole 25 forms a certain angle with the rotation axis of the eccentric wheel 22, one end of the transmission shaft 23 is inserted into the eccentric hole 25, the other end of the transmission shaft 23 is installed with the inclined swing member 28, the transmission shaft 23 is connected to the center position of the inclined swing member 28, realizing the connection between the eccentric wheel 22 and the inclined swing member 28, and several swing arms 24 are evenly fixed on the periphery of the inclined swing member 28. The driving mechanism drives the inclined swing member 28 to tilt and swing, so that the swing arms 24 on the periphery of the inclined swing member 28 move up and down in sequence.

[0032] As an improvement to the above technical solution, a connecting hole 27 is provided through the top of the swing arm 24. A circular plate 5 is fixedly installed at the upper end of the cylindrical shell 11. Several piston holes 1 are provided through the top of the circular plate 5 at equal angles. A piston 10 is fitted inside the piston hole 1. A piston rod 8 is fixedly installed at the bottom of the piston 10. A connecting ball head 9 is fixedly installed at the bottom of the piston rod 8. The connection ball head 9 and the connecting hole 27 are fitted to connect the piston 10 and the inclined swing member 28. During the swinging process, the inclined swing member 28 will periodically push and pull the piston 10 in sequence. The piston 10 moves up and down in the piston hole 1, so that each piston 10 can pump out gas in sequence.

[0033] As an improvement to the above technical solution, a scratch-resistant washer 4 is fixedly installed at the bottom of the circular plate 5. The inner wall of the scratch-resistant washer 4 is smooth. The swing arm 24 slides in contact with the scratch-resistant washer 4. When the motor 21 works, it drives the inclined swing member 28 to swing. When the swing arm 24 on the periphery of the inclined swing member 28 moves up and down, due to the smooth inner wall of the scratch-resistant washer 4, the swing arm 24 slides in contact with the inner wall of the scratch-resistant washer 4 during the movement, which avoids the inclined swing member from easily scratching the inner wall of the housing during the swing. This solves the problem that the inclined swing member in the existing air pump is prone to scratching the inner wall of the housing during the swing. This scratching not only generates a lot of noise and affects the user experience, but also causes wear to the inclined swing member in the long run, reducing its service life.

[0034] The working principle and usage of this utility model:

[0035] Working principle

[0036] Drive mechanism start-up: After the motor 21 is powered on, it starts to run, and its output end drives the output gear 26 to rotate.

[0037] Eccentric wheel rotation: Output gear 26 meshes with eccentric wheel 22, and the rotation of output gear 26 drives eccentric wheel 22 to rotate;

[0038] The swaying of the inclined component: the eccentric rod 7 above the eccentric wheel 22 rotates accordingly. Since the central axis of the eccentric hole 25 forms a certain angle with the rotation axis of the eccentric wheel 22, the transmission shaft 23 moves in the eccentric hole 25, causing the inclined component 28 to tilt and sway around the central position.

[0039] Piston reciprocating motion: When the inclined rocker 28 swings, the rocker arms 24 on its periphery move up and down in sequence, and the connecting ball head 9 cooperates with the connecting hole 27, so that the piston 10 moves up and down in the piston hole 1. The reciprocating motion of the piston 10 realizes the intake and exhaust of gas, and completes the pumping out of gas.

[0040] Anti-scratch protection: When the swing arm 24 moves up and down, it slides in contact with the smooth inner wall of the anti-scratch washer 4 to prevent the inclined swing part 28 from rubbing against the inner wall of the cylindrical shell, thereby reducing noise and wear.

[0041] How to use

[0042] Before use, install the anti-scratching structure of the air pump swing arm into the air pump equipment as required, ensuring that all components are firmly connected and that the motor 21 is properly connected to the power supply. Check whether the connection between the suction pipe 12 and the cylindrical shell 11 is sealed to avoid air leakage affecting the pumping efficiency. Power on the motor 21 and observe whether the motor runs smoothly and whether the output gear 26 meshes smoothly with the eccentric wheel 22. Observe the swing of the inclined swing component 28 to ensure that its swing amplitude and frequency meet the design requirements. At the same time, check whether the reciprocating motion of the piston 10 in the piston hole 1 is smooth and without any jamming. During the operation of the equipment, listen carefully for any abnormal noise and ensure that the inner wall of the anti-scratching washer 4 is smooth and that there is no scraping when the swing arm 24 moves.

[0043] Regular maintenance: Based on the equipment usage, regularly inspect and maintain key components such as motor 21, eccentric wheel 22, and inclined swing component 28, clean dust and impurities, and ensure long-term stable operation of the equipment.

[0044] The above description is only used to illustrate the technical solution of this utility model, and is not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A scratch-resistant structure for an air pump swing arm, characterized in that: The device includes a cylindrical shell (11), a drive mechanism (2) installed inside the cylindrical shell (11), an inclined swing member (28) provided inside the cylindrical shell (11), a plurality of swing arms (24) uniformly fixed on the periphery of the inclined swing member (28), a connecting hole (27) penetrating through the top of the swing arms (24), a circular plate (5) fixedly provided at the upper end inside the cylindrical shell (11), a plurality of piston holes (1) being longitudinally penetrating through the top of the circular plate (5) at equal angles, and the piston holes (1) being... A piston (10) is provided, and a piston rod (8) is fixedly provided at the bottom of the piston (10). A connecting ball head (9) is fixedly provided at the bottom of the piston rod (8). An anti-scratching washer (4) is fixedly provided at the bottom of the circular plate (5). The inner wall of the anti-scratching washer (4) is smooth. The swing arm (24) slides in contact with the anti-scratching washer (4). The driving mechanism (2) is used to drive the inclined swing member (28) to swing and periodically push and pull the piston (10) to reciprocate.

2. The anti-scratching structure for an air pump swing arm according to claim 1, characterized in that: The drive mechanism (2) includes a motor (21), which is installed on the bottom side of the cylindrical shell (11). The output end of the motor (21) passes through the cylindrical shell (11) and is equipped with an output gear (26). An eccentric wheel (22) is rotatably arranged inside the cylindrical shell (11). The eccentric wheel (22) meshes with the output gear (26). An eccentric rod (7) is installed above the eccentric wheel (22), and an inclined swing member (28) is installed above the eccentric rod (7).

3. The anti-scratching structure for an air pump swing arm according to claim 2, characterized in that: The connection ball (9) and the connection hole (27) are used to connect the piston (10) and the inclined rocker (28).

4. The anti-scratching structure for an air pump swing arm according to claim 3, characterized in that: The top of the eccentric rod (7) is provided with an eccentric hole (25). The central axis of the eccentric hole (25) forms a certain angle with the rotation axis of the eccentric wheel (22). One end of the drive shaft (23) is inserted into the eccentric hole (25). The other end of the drive shaft (23) is equipped with a slanted swing member (28). The drive shaft (23) is connected to the center position of the slanted swing member (28).

5. The anti-scratching structure for an air pump swing arm according to claim 4, characterized in that: The bottom of the cylindrical shell (11) is provided with a through hole (3), and the output end of the motor (21) passes through the through hole (3).

6. The anti-scratching structure for an air pump swing arm according to claim 5, characterized in that: A rotating rod (29) is fixedly installed at the bottom of the eccentric wheel (22), and the rotating rod (29) is rotatably installed at the bottom of the cylindrical shell (11).

7. The anti-scratching structure for an air pump swing arm according to claim 6, characterized in that: A connecting block (6) is fixedly installed on the top of the eccentric wheel (22), and the eccentric rod (7) is fixedly installed on the top of the connecting block (6).

8. The anti-scratching structure for an air pump swing arm according to claim 7, characterized in that: An air suction pipe (12) is installed on the other side of the bottom of the cylindrical shell (11). The air suction pipe (12) penetrates the cylindrical shell (11), and the penetration point between the air suction pipe (12) and the cylindrical shell (11) is sealed.

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