Compact brushless motor bicycle inflator pump core

Abstract

The utility model discloses a compact brushless motor bicycle inflator pump machine core, which relates to the technical field of inflator pump machine cores and comprises an integrated support, a brushless motor is arranged on the integrated support, a motor screw is arranged at the joint of the brushless motor and the integrated support, an output shaft of the brushless motor is connected with a cam, and the cam is connected with the brushless motor. A cam shaft is arranged on the cam in a penetrating mode, a ball bearing is arranged on the outer side of the cam shaft in a sleeving mode, a connecting rod piston is arranged on the outer side of the ball bearing, and an E-shaped clamping ring is arranged at the connecting position of the cam shaft and the ball bearing. By means of the brushless motor, the size of the motor is reduced under the condition that torsion and rotating speed are guaranteed, so that the size of the inflator pump is reduced, and the inflator pump is convenient to carry and use.

Description

Technical Field

[0001] The utility model relates to the technical field of air pump cores, in particular to a compact brushless motor bicycle air pump core. Background Art

[0002] Bicycles are small-sized transportation tools for the general public, which makes it more convenient for pedestrians to travel by bicycle. During the driving process of bicycles, the tires may leak air, so it is necessary to inflate them with a portable air pump after the tire is repaired.

[0003] When the existing compact brushless motor bicycle air pump movement is in use, the air pump uses a brushed motor, which makes the air pump movement larger in size and inconvenient to carry. At the same time, the traditional air pump movement is driven by the motor gear to drive the reduction gear and then drive the cam for transmission, which makes the movement transmission noisy and the cost high. In addition, the air pressure sensor of the traditional air pump movement is usually connected to the thread groove by an air pipe, and then the sensor chip is fixed to the thread groove, which increases the use of materials, labor and mold costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a compact brushless motor bicycle air pump movement. By setting a brushless motor, the motor size is reduced while ensuring the torque and speed, so as to reduce the size of the air pump, which is easy to carry and use, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a compact brushless motor bicycle air pump movement, including an integrated bracket, a brushless motor is arranged on the integrated bracket, a motor screw is arranged at the connection position between the brushless motor and the integrated bracket, a cam is connected to the output shaft of the brushless motor, a camshaft is passed through the cam, a ball bearing is sleeved on the outer side of the camshaft, a connecting rod piston is arranged on the outer side of the ball bearing, an E-type retaining ring is arranged at the connection position between the camshaft and the ball bearing, an organic screw is arranged at the connection position between the cam and the brushless motor, an air outlet is arranged at one end of the integrated bracket, and a threaded groove is arranged on the air outlet.

[0006] Furthermore, an air outlet screw is provided at the connection position between the air outlet and the integrated bracket, a piston ring is provided on the outer ring side of one end of the connecting rod piston, and a sealing ring is provided on the outer ring side of the piston ring.

[0007] Furthermore, the connecting rod piston end is provided with an air outlet valve, a side surface of the air outlet valve is provided with a valve slingshot, and an air outlet nozzle sealing ring is provided on the inner side of one end of the air outlet nozzle away from the integrated bracket.

[0008] Furthermore, the brushless motor is connected to the integrated bracket via the motor screw, and the output shaft of the brushless motor is connected to the cam via the machine screw.

[0009] Furthermore, the ball bearing is interference-connected with the connecting rod piston, and a ring groove is provided at the connection position between the camshaft and the E-type retaining ring.

[0010] Furthermore, the air outlet nozzle and the integrated bracket are connected via the air outlet nozzle screws, and the piston ring and the connecting rod piston are connected via clamping.

[0011] Furthermore, heat dissipation fins are formed on the side surface of the outer ring of the air outlet.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model reduces the size of the motor while ensuring the torque and speed by setting a brushless motor, so as to reduce the size of the air pump and facilitate carrying and use.

[0014] 2. The utility model provides a cam and a machine screw, and the cam is directly fixed to the motor output shaft by the machine screw, thereby eliminating the gear reduction mechanism, reducing transmission noise, and reducing costs.

[0015] 3. The utility model fixes the sensor chip on the air outlet nozzle by setting an air outlet nozzle and a threaded groove made of metal material, removes the threaded groove, external air pipe and corresponding spring pipe clamp, and reduces the material, labor and mold costs.

[0016] 4. The utility model uses a connecting rod piston, a rolling bearing, a camshaft and an E-type retaining ring to use a ball bearing on the connecting rod piston, thereby effectively reducing the noise and resistance of the connecting rod piston transmission and enhancing the transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the exploded structure of the parts of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the first embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the main structure of the second embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the lateral structure of the second embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the lateral structure of the first embodiment of the utility model.

[0022] In the figure: 1. Brushless motor; 2. Integrated bracket; 3. Motor screw; 4. Machine screw; 5. Cam; 6. Connecting rod piston; 7. Ball bearing; 8. Camshaft; 9. E-type retaining ring; 10. Piston ring; 11. Air outlet screw; 12. Sealing ring; 13. Exhaust valve; 14. Valve slingshot; 15. Air outlet; 16. Air outlet sealing ring; 17. Threaded groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 Embodiment 1 provides a technical solution: a compact brushless motor bicycle air pump movement, including an integrated bracket 2, a brushless motor 1 is arranged on the integrated bracket 2, a motor screw 3 is arranged at the connection position between the brushless motor 1 and the integrated bracket 2, a cam 5 is connected to the output shaft of the brushless motor 1, a camshaft 8 is passed through the cam 5, a ball bearing 7 is sleeved on the outer side of the camshaft 8, a connecting rod piston 6 is arranged on the outer side of the ball bearing 7, an E-type retaining ring 9 is arranged at the connection position between the camshaft 8 and the ball bearing 7, an organic screw 4 is arranged at the connection position between the cam 5 and the brushless motor 1, an air outlet 15 is arranged at one end of the integrated bracket 2, and a threaded groove 17 is arranged on the air outlet 15.

[0025] like Figure 1-5 As shown, an air pressure sensor can be directly installed on the threaded groove 17, reducing the number of parts required to connect the air pressure sensor to the air pump pipeline, thereby reducing production costs. The air outlet nozzle 15 has two sizes, long and short, to meet actual usage requirements. The E-type retaining ring 9 can limit and fix the camshaft 8, so that the ball bearing 7 and the connecting rod piston 6 are stably connected.

[0026] See also Figure 1-5 Embodiment 2 provides a technical solution: a compact brushless motor bicycle air pump movement, an air outlet screw 11 is provided at the connection position of the air outlet 15 and the integrated bracket 2, a piston ring 10 is provided on the outer ring side of one end of the connecting rod piston 6, and a sealing ring 12 is provided on the outer ring side of the piston ring 10.

[0027] like Figure 1-5 As shown, the sealing ring 12 can ensure that the piston ring 10 is tightly connected to the inner wall of the integral bracket 2, thereby ensuring the inflation effect of the air pump.

[0028] An air outlet valve 13 is arranged at the end of the connecting rod piston 6 , a valve slingshot 14 is arranged on one side of the air outlet valve 13 , and an air outlet nozzle sealing ring 12 is arranged on the inner side of one end of the air outlet nozzle 15 away from the integrated bracket 2 .

[0029] like Figure 1 As shown, the air outlet sealing ring 12 can ensure the tightness of the connection between the air outlet 15 and the equipment that needs to be inflated, thereby ensuring the inflation efficiency. The valve slingshot 14 can make the air outlet valve 13 pressed tightly against the inner side of the integrated bracket 2 by the spring force, and then fit tightly against the sealing ring 12 to prevent the gas from flowing back from the inflation pump.

[0030] The brushless motor 1 is connected to the integrated bracket 2 via a motor screw 3 , and the output shaft of the brushless motor 1 is connected to the cam 5 via a machine screw 4 .

[0031] like Figure 1 As shown, a cut is made on the output shaft of the brushless motor 1 to facilitate the assembly of the output shaft and the cam 5, and the output shaft and the cam 5 are connected and fixed by the machine screw 4, so that the brushless motor 1 can drive the cam 5 to rotate, and the rotation of the cam 5 drives the connecting rod piston 6 to rotate, thereby causing the connecting rod piston 6 to reciprocate inside the integrated bracket 2, and the inflation operation is performed through the piston ring 10, and the gas is blown out through the air outlet nozzle 15, thereby inflating the tire.

[0032] The ball bearing 7 is interference-connected with the connecting rod piston 6 , and a ring groove is provided at the connection position between the camshaft 8 and the E-type retaining ring 9 .

[0033] like Figure 1 As shown, the ball bearing 7 can increase the rotational friction between the camshaft 8 and the connecting rod piston 6, thereby reducing noise.

[0034] The air outlet nozzle 15 is connected to the integrated bracket 2 via an air outlet nozzle screw 11, and the piston ring 10 is connected to the connecting rod piston 6 via clamping.

[0035] The outer ring side of the air outlet nozzle 15 is formed with heat dissipation fins.

[0036] The working principle of the compact brushless motor bicycle air pump movement provided by the utility model is as follows: Figure 1-Figure 5 As shown, the rotation of the output shaft of the brushless motor 1 can drive the cam 5 to rotate, and the cam 5 drives the connecting rod piston 6 to move through the camshaft 8. The other end of the connecting rod piston 6 reciprocates on the inner side of the integrated bracket 2. The piston ring 10 can be close to the inner wall of the integrated bracket 2 to ensure the inflation seal. An air pressure sensor is installed in the threaded groove 17, thereby reducing the number of parts required for the installation of the air pressure sensor and reducing production costs. The air outlet 15 has two sizes, which can be installed and used according to actual usage requirements to meet actual usage requirements.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A compact brushless motor bicycle air pump movement, comprising an integrated bracket (2), characterized in that: A brushless motor (1) is arranged on the integrated bracket (2), a motor screw (3) is arranged at the connection position between the brushless motor (1) and the integrated bracket (2), a cam (5) is connected to the output shaft of the brushless motor (1), a camshaft (8) is passed through the cam (5), a ball bearing (7) is sleeved on the outer side of the camshaft (8), a connecting rod piston (6) is arranged on the outer side of the ball bearing (7), an E-type retaining ring (9) is arranged at the connection position between the camshaft (8) and the ball bearing (7), a motor screw (4) is arranged at the connection position between the cam (5) and the brushless motor (1), an air outlet (15) is arranged at one end of the integrated bracket (2), and a threaded groove (17) is arranged on the air outlet (15).

2. The compact brushless motor bicycle air pump movement according to claim 1, characterized in that: An air outlet screw (11) is provided at the connection position between the air outlet (15) and the integrated bracket (2), a piston ring (10) is provided on the outer ring side of one end of the connecting rod piston (6), and a sealing ring (12) is provided on the outer ring side of the piston ring (10).

3. The compact brushless motor bicycle air pump movement according to claim 1, characterized in that: The end of the connecting rod piston (6) is provided with an air outlet valve (13), a side surface of the air outlet valve (13) is provided with a valve slingshot (14), and the inner side of the air outlet nozzle (15) away from the end of the integrated bracket (2) is provided with an air outlet nozzle sealing ring (12).

4. The compact brushless motor bicycle air pump movement according to claim 1, characterized in that: The brushless motor (1) is connected to the integrated bracket (2) via the motor screw (3), and the output shaft of the brushless motor (1) is connected to the cam (5) via the machine screw (4).

5. The compact brushless motor bicycle air pump movement according to claim 1, characterized in that: The ball bearing (7) is interference-connected with the connecting rod piston (6), and a ring groove is provided at the connection position between the camshaft (8) and the E-type retaining ring (9).

6. The compact brushless motor bicycle air pump movement according to claim 2, characterized in that: The air outlet nozzle (15) is connected to the integrated bracket (2) via the air outlet nozzle screw (11), and the piston ring (10) is connected to the connecting rod piston (6) via clamping.

7. The compact brushless motor bicycle air pump movement according to claim 1, characterized in that: The outer ring side of the air outlet nozzle (15) is formed with heat dissipation fins.

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