Brushless motor inflator pump

Abstract

The utility model discloses a brushless motor inflator pump which comprises a support, a brushless motor is horizontally installed at one end of the support, a cylinder sleeve is horizontally installed at the other end of the support, an air outlet cylinder sleeve head is arranged at the end of the cylinder sleeve, and a sensor assembly used for monitoring air pressure is arranged on the cylinder sleeve head. A brushless motor is arranged on the support, a driving gear is fixedly arranged on an output shaft at one end of the brushless motor, a conical surface driven gear is rotatably arranged on the support through a support bearing, and the driving gear and the conical surface driven gear are in meshed transmission. The input electric energy can be converted into mechanical energy more effectively, and the mechanical energy is used for compressing gas to inflate tires; the low-noise conical surface driven gear and the support connecting shaft are integrally designed, so that when the brushless motor is matched for operation, the friction force is small, the generated noise level is low, and the interference of the noise to a user is reduced; and the bracket and the cylinder sleeve are miniaturized, so that excessive space is not occupied.

Description

Technical Field

[0001] The utility model belongs to the technical field of air pumps, and in particular relates to an air pump with a brushless motor. Background Art

[0002] An air pump is a device that can inflate air-requiring equipment. A piston air pump achieves inflation through the reciprocating motion of a motor-driven piston. Existing air pumps mostly use general motors with low energy conversion efficiency, which affects the efficiency of inflation. There are also problems with the overall structure being complex and large in size, and generating loud noise during operation. Therefore, the utility model proposes a brushless motor air pump. Utility Model Content

[0003] The purpose of the present utility model is to provide a brushless motor air pump to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a brushless motor air pump, comprising a bracket, a brushless motor is horizontally mounted on one end of the bracket, a cylinder sleeve is horizontally mounted on the other end of the bracket, a cylinder sleeve head for air outlet is provided at the end of the cylinder sleeve, and a sensor assembly for monitoring air pressure is provided on the cylinder sleeve head, a driving gear is fixedly provided on the output shaft at one end of the brushless motor, a conical driven gear is rotatably provided on the bracket through the bracket bearing, the driving gear and the conical driven gear are meshed for transmission, a piston head for squeezing air is provided in the cylinder sleeve, a connecting rod is integrally provided at one end of the piston head, and the connecting rod rotates with the conical driven gear through a connecting piece to complete horizontal reciprocating motion.

[0005] Preferably, the sensor assembly includes a sensor mounting seat arranged on the cylinder liner head and interconnected, a sensor located in the sensor mounting seat, a sensor pressure plate for mounting the sensor, and the sensor pressure plate and the sensor mounting seat are fastened together by a plurality of pressure plate screws, and a sensor sealing ring for sealing is provided on the inner edge of the sensor mounting seat.

[0006] Preferably, the connecting member includes a driven gear connecting rod connecting shaft installed at the top edge of the conical driven gear, the other end of the connecting rod extends and is sleeved on the driven gear connecting rod connecting shaft, and the connecting rod is rotatably connected to the driven gear connecting rod connecting shaft through a connecting bearing, and a retaining spring for limiting is provided at the top of the driven gear connecting rod connecting shaft.

[0007] Preferably, a fan blade is installed on the output shaft at the other end of the brushless motor, and the brushless motor is fastened to the bracket by a plurality of bracket screws.

[0008] Preferably, the bracket connecting shaft at the center of the conical driven gear and the conical driven gear are an integrated structure, and the bracket connecting shaft at the center of the conical driven gear and the bracket bearing are connected by riveting.

[0009] Preferably, the bracket and the cylinder liner are both distributed horizontally, and the bracket and the cylinder liner are fastened together by a plurality of cylinder liner screws.

[0010] Preferably, a circle of piston ring is clamped on the piston head, and the connecting rod and the connecting bearing are connected by riveting.

[0011] Compared with the existing technology, the beneficial effects of the present invention are as follows: the present invention adopts a high-efficiency and energy-saving brushless motor with high energy conversion efficiency, which can more effectively convert the input electrical energy into mechanical energy for compressing gas to inflate the tire;

[0012] The low-noise conical driven gear is integrated with the bracket connecting shaft. When running with the brushless motor, the friction is small and the noise level is low, which reduces the noise interference to the user.

[0013] The bracket and cylinder sleeve adopt a miniaturized design, so that the overall volume and weight of the movement can be effectively controlled without taking up too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0016] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0017] In the figure: 1. Fan blade; 2. Brushless motor; 3. Driving gear; 4. Bracket; 5. Bracket screw; 6. Conical driven gear; 7. Circlip; 8. Driven gear connecting rod connecting shaft; 9. Connecting rod; 10. Piston ring; 11. Sensor pressure plate; 12. Pressure plate screw; 13. Sensor sealing ring; 14. Sensor; 15. Cylinder liner screw; 16. Cylinder liner; 17. Connecting bearing; 18. Bracket bearing. DETAILED DESCRIPTION

[0018] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0019] Example 1

[0020] See also Figures 1 to 3 , which is the first embodiment of the utility model, and provides a technical solution: a brushless motor air pump, comprising a bracket 4, a brushless motor 2 is horizontally mounted at one end of the bracket 4, which has high energy conversion efficiency and can more effectively convert the input electrical energy into mechanical energy for compressing gas to inflate the tire; a cylinder sleeve 16 is horizontally mounted at the other end of the bracket 4, a cylinder sleeve head for air outlet is provided at the end of the cylinder sleeve 16, and a sensor assembly for monitoring the air pressure is provided on the cylinder sleeve head, a driving gear 3 is fixedly provided on the output shaft at one end of the brushless motor 2, a conical driven gear 6 is rotatably provided on the bracket 4 through a bracket bearing 18, the driving gear 3 is meshed with the conical driven gear 6 for transmission, a piston head for squeezing air is provided in the cylinder sleeve 16, and a connecting rod 9 is integrally provided at one end of the piston head, and the connecting rod 9 rotates with the conical driven gear 6 through a connecting piece to complete horizontal reciprocating motion.

[0021] In this embodiment, preferably, the sensor assembly includes a sensor mounting seat arranged on the cylinder liner head and connected to each other, a sensor 14 located in the sensor mounting seat, a sensor pressure plate 11 for installing the sensor, and the sensor pressure plate 11 is fastened to the sensor mounting seat by multiple pressure plate screws 12, and a sensor sealing ring 13 for sealing is provided on the inner edge of the sensor mounting seat.

[0022] In this embodiment, preferably, the connecting member includes a driven gear connecting rod connecting shaft 8 installed at the top edge of the conical driven gear 6, the other end of the connecting rod 9 extends and is sleeved on the driven gear connecting rod connecting shaft 8, and the connecting rod 9 is rotatably connected to the driven gear connecting rod connecting shaft 8 via a connecting bearing 17, and a retaining spring 7 for limiting is provided at the top of the driven gear connecting rod connecting shaft 8. In this embodiment, preferably, a fan blade 1 is installed on the output shaft at the other end of the brushless motor 2, and the brushless motor 2 is fastened to the bracket 4 by a plurality of bracket screws 5 to maintain stable operation. In this embodiment, preferably, the bracket connecting shaft at the center of the conical driven gear 6 is an integrated structure with the conical driven gear 6, and is designed to be integrated with the bracket connecting shaft. When operating with the brushless motor 2, the friction is small and the noise level generated is low; the bracket connecting shaft at the center of the conical driven gear 6 is connected to the bracket bearing 18 by riveting, reducing the possibility of failure and improving stability during operation. In this embodiment, preferably, the bracket 4 and the cylinder sleeve 16 are both horizontally distributed, and the bracket 4 and the cylinder sleeve 16 adopt a miniaturized design, so that the overall volume and weight of the movement can be effectively controlled and will not take up too much space; and the bracket 4 and the cylinder sleeve 16 are fastened together by a plurality of cylinder sleeve screws 15, so as to ensure a stable connection and to maintain stable operation in various harsh operating environments. In this embodiment, preferably, a circle of piston rings 10 is provided on the piston head, and the connecting rod 9 is connected to the connecting bearing 17 by riveting, which reduces the possibility of failure and provides better stability during operation. Although the embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brushless motor air pump, comprising a bracket (4), characterized in that: A brushless motor (2) is horizontally mounted on one end of the bracket (4), and a cylinder sleeve (16) is horizontally mounted on the other end of the bracket (4). A cylinder sleeve head for venting air is provided at the end of the cylinder sleeve (16), and a sensor assembly for monitoring air pressure is provided on the cylinder sleeve head. A driving gear (3) is fixedly provided on the output shaft at one end of the brushless motor (2). A conical driven gear (6) is rotatably provided on the bracket (4) through a bracket bearing (18). The driving gear (3) and the conical driven gear (6) are meshed and driven. A piston head for squeezing air is provided in the cylinder sleeve (16), and a connecting rod (9) is integrally provided at one end of the piston head. The connecting rod (9) rotates with the conical driven gear (6) through a connecting piece to complete horizontal reciprocating motion.

2. A brushless motor air pump according to claim 1, characterized in that: The sensor assembly includes a sensor mounting seat arranged on a cylinder liner head and interconnected, a sensor (14) located in the sensor mounting seat, a sensor pressure plate (11) for mounting the sensor, and the sensor pressure plate (11) is fastened to the sensor mounting seat by a plurality of pressure plate screws (12), and a sensor sealing ring (13) for sealing is provided on the inner edge of the sensor mounting seat.

3. The brushless motor air pump according to claim 1, characterized in that: The connecting member comprises a driven gear connecting rod connecting shaft (8) mounted on the top edge of the conical driven gear (6); the other end of the connecting rod (9) is extended and sleeved on the driven gear connecting rod connecting shaft (8); and the connecting rod (9) is rotatably connected to the driven gear connecting rod connecting shaft (8) through a connecting bearing (17); and a retaining spring (7) for limiting is provided at the top end of the driven gear connecting rod connecting shaft (8).

4. The brushless motor air pump according to claim 1, characterized in that: A fan blade (1) is mounted on the output shaft at the other end of the brushless motor (2), and the brushless motor (2) is fastened to the bracket (4) via a plurality of bracket screws (5).

5. The brushless motor air pump according to claim 1, characterized in that: The support connecting shaft at the center of the conical driven gear (6) and the conical driven gear (6) are an integrated structure, and the support connecting shaft at the center of the conical driven gear (6) and the support bearing (18) are connected by riveting.

6. The brushless motor air pump according to claim 1, characterized in that: The bracket (4) and the cylinder sleeve (16) are both horizontally distributed, and the bracket (4) and the cylinder sleeve (16) are fastened together by a plurality of cylinder sleeve screws (15).

7. The brushless motor air pump according to claim 3, characterized in that: A circle of piston ring (10) is clamped on the piston head, and the connecting rod (9) is connected to the connecting bearing (17) by riveting.

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