Gear shifting part structure of inflator pump

Abstract

The invention provides a gear shifting part structure of an inflator pump, and belongs to the technical field of air pumps. The gear shifting part structure of the inflator pump solves the problems that an air compression structure of an existing inflator pump is fixed, and a high-voltage motor is difficult to drive, and comprises an air output unit, an air compression unit, a power input unit and a gear shifting rotary table, a driven gear meshed with the driving gear is arranged on the gas compression unit, a driving rod is arranged on the driven gear, a connecting rod is arranged on the driving rod, the gear shifting rotary disc is arranged on one side of the connecting rod, a plurality of concentric annular grids are arranged on the gear shifting rotary disc, guide ring grooves are formed between the annular grids, and the driving rod is arranged in the guide ring grooves. The gear shifting rotary table is further provided with a gear shifting shifting block, the tail end of the gear shifting shifting block is provided with a guide through groove, the guide through groove communicates with the guide ring groove, the driving gear is provided with a limiting sliding groove, and the gear shifting mechanism has the advantages of being adjustable in gear and wide in application range.

Description

Technical Field

[0001] The invention belongs to the technical field of air pumps and relates to an air pump, in particular to a gear shifting structure of an air pump. Background Art

[0002] An air pump is a pump that can be operated by a motor. Its working principle is to produce a pumping or inflating effect through the operation of an internal motor. This device is usually designed to be small and portable, and is very suitable for inflating various items in a variety of occasions, such as car tires, bicycle tires, basketballs, footballs, etc.

[0003] When a conventional air pump is inflated, the internal air pressure of the target object will gradually increase. When most air pumps are underpowered, the pressure will be too high, making it difficult to drive the motor. The compressed gas device installed in the air pump is of fixed size, resulting in fixed compression amplitude and cycle, which makes it difficult to meet the inflation needs under different air pressures. Therefore, it is necessary to develop a transmission structure to meet the inflation needs under different air pressures. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-gear, automatic-cutting gear shift structure for an air pump in view of the above-mentioned problems existing in the prior art.

[0005] The purpose of the present invention can be achieved through the following technical solutions: an air pump shifting part structure, comprising a gas output unit, a gas compression unit and a power input unit, characterized in that it also includes a shifting dial, the power input unit includes a driving motor and a driving gear, the gas compression unit is provided with a passive gear engaged with the driving gear, and the passive gear is provided with a driving rod, the driving rod is provided with a connecting rod, the shifting dial is provided on one side of the connecting rod, the shifting dial is provided with a plurality of concentric annular grids, guide ring grooves are provided between the plurality of annular grids, the driving rod is placed in the guide ring grooves, the annular grids are all provided with connecting grooves, the shifting dial is also provided with a shifting block, and a guide through groove is provided at the end of the shifting block, and the guide through groove is connected to the guide ring groove, the driving gear is provided with a limiting sliding groove, and a sliding block is provided at the end of the driving rod.

[0006] In the above-mentioned air pump shift part structure, a rack is provided on the shift paddle block, a mounting bowl is provided on one side of the shift dial, and a shift motor is provided in the mounting bowl, and a driving gear is provided at the end of the shift motor.

[0007] In the above-mentioned air pump shift part structure, a plurality of connecting protrusions are provided on the inner wall of the mounting bowl, and a cover is provided on the mounting bowl, a plurality of connecting bolts are provided on the cover, and the connecting bolts connect the cover, the mounting bowl and the shift dial, and a motor limiter is provided on the cover.

[0008] In the above-mentioned air pump shifting part structure, the annular grille and the limiting slide groove are provided with a plurality of positioning holes, the shifting block and the slide block are provided with a plurality of elastic positioning pins, and the ends of the elastic positioning pins are provided with supporting springs.

[0009] In the above-mentioned air pump shift part structure, the mounting bowl is provided with a wiring tube hole, the shift motor is provided with a connecting line, and a pressure sensor is provided at the end of the connecting line, and the pressure sensor is arranged in the gas output unit.

[0010] Compared with the prior art, the gear shifting structure of the air pump provides multiple operating gears by setting a gear shift dial, so that the air pump can adapt to more usage scenarios when the air pump motor is fixed. By shifting gears, the movement cycle of the connecting rod is changed and the movement radius is reduced. The operating speed of the driving rod can be reduced, and the movement amplitude of the connecting rod can be reduced. Through the high frequency and low air volume method, a larger air pressure range can be indicated without changing the inflation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the gear shifting part structure of the air pump.

[0012] Figure 2 It is a structural schematic diagram of the shifting rotating plate and the passive gear of the shifting part structure of the air pump.

[0013] Figure 3 It is a structural schematic diagram of the shifting rotating plate and the passive gear of the shifting part structure of the air pump.

[0014] Figure 4 It is a structural schematic diagram of the shifting rotating plate and the passive gear of the shifting part structure of the air pump.

[0015] Figure 5 It is a structural schematic diagram of the passive gear of the gear shifting part of the air pump.

[0016] Figure 6 It is a structural schematic diagram of the shifting turntable of the shifting part structure of the air pump.

[0017] Figure 7 It is a structural schematic diagram of the passive gear of the gear shifting part of the air pump.

[0018] Figure 8 It is a structural schematic diagram of a partial enlargement of the gear shifting structure of the air pump.

[0019] Fig. 9 It is a structural schematic diagram of the structural cover of the shifting part of the air pump.

[0020] In the figure, 1. connecting line; 2. pressure sensor; 3. gas output unit; 4. driving gear; 5. power input unit; 6. driving motor; 7. driven gear; 8. gas compression unit; 9. connecting rod; 10. connecting bolt; 11. sealing cover; 12. wiring pipe hole; 13. shift motor; 14. mounting bowl; 15. rack; 16. connecting protrusion; 17. driving gear; 18. shift dial; 19. annular grille; 20. guide ring groove; 21. connecting groove; 22. shift paddle block; 23. slider; 24. driving rod; 25. limiting slide groove; 26. elastic positioning pin; 27. supporting spring; 28. positioning hole; 29. ​​guide through groove; 30. motor limiting part. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1-Figure 9 As shown, the shifting structure of the air pump includes a gas output unit 3, a gas compression unit 8 and a power input unit 5, and also includes a shifting dial 18. The power input unit 5 includes a driving motor 6 and a driving gear 4. The gas compression unit 8 is provided with a passive gear 7 engaged with the active gear 4, and the passive gear 7 is provided with a driving rod 24, and the driving rod 24 is provided with a connecting rod 9. The shifting dial 18 is provided on one side of the connecting rod 9, and the shifting dial 18 is provided with a plurality of concentric annular grilles 19, and a guide ring groove 20 is provided between the plurality of annular grilles 19. The driving rod 24 is placed in the guide ring groove 20, and the annular grilles 19 are all provided with a connecting groove 21. The shifting dial 18 is also provided with a shifting block 22, and the end of the shifting block 22 is provided with a guide through groove 29, and the guide through groove 29 is connected to the guide ring groove 20. A limiting slide groove 25 is provided, and a slider 23 is provided at the end of the driving rod 24. When inflation is started, the driving rod 24 is placed in the guide ring groove 20 of the outermost circle, and the driving motor 6 drives the active gear 4 to rotate and drives the passive gear 7 to rotate so that the driving rod 24 and the guide ring groove 20 make a circular motion. When the air pressure inside the inflated object is increased, the driving motor 6 stops moving and the driving rod 24 moves to the bottom of the guide ring groove 20 under the action of gravity. The driving rod 24 moves to the guide through groove 29 of the shift paddle block 22, and the shift paddle block 22 is moved upward to make the driving rod 24 enter the guide ring groove 20 with a smaller diameter, and move through a smaller compression amplitude and a faster compression cycle, so that the high-pressure gas generated each time is reduced, but the frequency of the compression cycle is increased to generate multiple frequencies of small amounts of high-pressure gas for inflation, thereby reducing the load of the driving motor 6.

[0023] Preferably, a rack 15 is provided on the shift paddle block 22, a mounting bowl 14 is provided on one side of the shift dial 18, and a shift motor 13 is provided in the mounting bowl 14, and a driving gear 17 is provided at the end of the shift motor 13. The driving gear 17 is controlled by the shift motor 13 to make the movement of the driving rod 24 more convenient, and the rack 15 can also have a certain locking force to prevent the shift paddle block 22 from accidentally sliding.

[0024] Preferably, a plurality of connecting protrusions 16 are provided on the inner wall of the mounting bowl 14, and a cover 11 is provided on the mounting bowl 14, a plurality of connecting bolts 10 are provided on the cover 11, and the connecting bolts 10 connect the cover 11, the mounting bowl 14 and the shift dial 18, a motor limiting portion 30 is provided on the cover 11, and the cover 11 and the mounting bowl 14 are connected with the shift dial 18 by the connecting bolts 10, and the motor limiting portion 30 limits the shift motor 13 to prevent displacement caused by vibration.

[0025] Preferably, a plurality of positioning holes 28 are provided on the annular grille 19 and the limiting slide groove 25, a plurality of elastic positioning pins 26 are provided on the shift paddle block 22 and the slider 23, and a support spring 27 is provided at the end of the elastic positioning pin 26, and the shift positioning is completed by engaging the elastic positioning pin 26 with the positioning hole 28 to assist.

[0026] Preferably, a wiring tube hole 12 is provided on the mounting bowl 14, a connecting line 1 is provided on the shift motor 13, and a pressure sensor 2 is provided at the end of the connecting line 1. The pressure sensor 2 is arranged in the gas output unit 3. The pressure sensor 2 senses the air pressure in other output units to determine whether the shift motor 13 starts shifting, making the air pump more convenient to use.

[0027] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0028] Although the present invention uses more terms such as connection line 1, pressure sensor 2, gas output unit 3, driving gear 4, power input unit 5, drive motor 6, driven gear 7, gas compression unit 8, connecting rod 9, connecting bolt 10, cover 11, wiring tube hole 12, shift motor 13, mounting bowl 14, rack 15, connecting protrusion 16, drive gear 17, shift dial 18, annular grille 19, guide ring groove 20, connecting groove 21, shift paddle block 22, slider 23, drive rod 24, limit slide groove 25, elastic positioning pin 26, support spring 27, positioning hole 28, guide through groove 29, motor limit part 30, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A gear shift structure of an air pump, comprising a gas output unit (3), a gas compression unit (8) and a power input unit (5), characterized in that: The invention also comprises a shifting dial (18), wherein the power input unit (5) comprises a driving motor (6) and a driving gear (4), the gas compression unit (8) is provided with a passive gear (7) meshing with the driving gear (4), and the passive gear (7) is provided with a driving rod (24), the driving rod (24) is provided with a connecting rod (9), the shifting dial (18) is provided on one side of the connecting rod (9), and the shifting dial (18) is provided with a plurality of concentric annular grilles (19), and the plurality of annular grilles (19) are provided on the gear input unit (5), wherein the plurality of annular grilles (19) are provided on the gear input unit (5), and ...). A guide ring groove (20) is provided between the grilles (19), the driving rod (24) is placed in the guide ring groove (20), the annular grilles (19) are provided with connecting grooves (21), the shift dial (18) is also provided with a shift paddle (22), and the end of the shift paddle (22) is provided with a guide through groove (29), and the guide through groove (29) is connected to the guide ring groove (20), the driving gear (4) is provided with a limiting sliding groove (25), and the end of the driving rod (24) is provided with a sliding block (23).

2. The gear shifting structure of an air pump according to claim 1, characterized in that: A rack (15) is provided on the shift paddle (22), a mounting bowl (14) is provided on one side of the shift dial (18), a shift motor (13) is provided in the mounting bowl (14), and a driving gear (17) is provided at the end of the shift motor (13).

3. The gear shifting structure of an air pump according to claim 2, characterized in that: A plurality of connecting protrusions (16) are provided on the inner wall of the mounting bowl (14), and a cover (11) is provided on the mounting bowl (14). A plurality of connecting bolts (10) are provided on the cover (11), and the connecting bolts (10) connect the cover (11), the mounting bowl (14) and the shifting dial (18). A motor limiting portion (30) is provided on the cover (11).

4. The gear shifting structure of an air pump according to claim 1, characterized in that: The annular grille (19) and the limiting slide groove (25) are provided with a plurality of positioning holes (28), the shift paddle block (22) and the slide block (23) are provided with a plurality of elastic positioning pins (26), and the ends of the elastic positioning pins (26) are provided with support springs (27).

5. The gear shifting structure of an air pump according to claim 2, characterized in that: The mounting bowl (14) is provided with a wiring tube hole (12), the shifting motor (13) is provided with a connecting line (1), and a pressure sensor (2) is provided at the end of the connecting line (1), and the pressure sensor (2) is arranged in the gas output unit (3).

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