A new type of inflator pump

Abstract

The utility model relates to the technical field of inflating machinery, propose a kind of novel inflating pump, pump body, piston rod, which is axially reciprocatingly arranged on pump body, and driver, which is drivingly connected with piston rod, the driver is arranged in up-down direction with pump body, the axis of driver drive shaft does not coincide with the axis of piston rod, transmission mechanism is equipped between driver and piston rod, driver is drivingly connected with piston rod by transmission mechanism, driver starts to drive piston rod to make axial reciprocating movement by transmission mechanism. By arranging driver and pump body in up-down direction, the length direction size of air pump is reduced, the axis of driver drive shaft does not coincide with the axis of piston rod, if driver is damaged, it is convenient to disassemble, replace and repair driver on air pump later.

Description

Technical Field

[0001] This utility model relates to the field of inflatable machinery technology, specifically to a novel air pump. Background Technology

[0002] Existing air pumps typically have a linear structure with a large length dimension. For example, Chinese Patent No. ZL202223076227.3 discloses a novel linear air pump, including a motor component, an air pump cylinder, and a piston rod. The motor component drives the piston rod to reciprocate on the air pump cylinder. It also includes a rotatably mounted transmission component with a transition point a. The transmission component is rotatably connected to the piston rod with a transition point b, and the motor component drives the piston rod to reciprocate through the transmission component. The transmission component has an eccentric assist part that rotates with the transmission component. Transition point a is located between the eccentric assist part and transition point b. This application aims to improve the shape of the novel linear air pump to reduce its length dimension. Utility Model Content

[0003] This utility model proposes a novel air pump. By arranging the driver and pump body vertically, the length dimension of the air pump is reduced. The axis of the driver's drive shaft does not coincide with the axis of the piston rod. If the driver is damaged, it is convenient to disassemble, replace and repair the driver on the air pump later.

[0004] A novel air pump designed for this purpose includes a pump body, a piston rod axially reciprocatingly mounted on the pump body, and a driver connected to the piston rod. The driver and the pump body are arranged vertically. The axis of the driver's drive shaft does not coincide with the axis of the piston rod. A transmission mechanism is provided between the driver and the piston rod. The driver is connected to the piston rod through the transmission mechanism. When the driver is activated, it drives the piston rod to reciprocate axially through the transmission mechanism.

[0005] The pump body is provided with an inflation output end in the axial reciprocating motion direction of the piston rod, and a detection assembly for detecting the inflation output end is provided on the outside of the pump body.

[0006] The pump body has a connecting seat on the outside corresponding to the inflation output end. The connecting seat has a spiral flow channel that connects to the inflation output end. The detection assembly is installed on the connecting seat. The connecting seat has an anti-cavity groove that connects to the spiral flow channel at the detection end of the detection assembly.

[0007] The connector has a core with a spiral groove, and the spiral groove of the core forms a spiral flow channel with the inner side of the connector.

[0008] The connector is detachably mounted on the outside of the pump body. The detection assembly includes a detection circuit board mounted on the support plate and a sensor electrically connected to the detection circuit board. The connector has a mounting groove. A portion of the detection circuit board on the support plate is limited in the mounting groove, and the sensor is also limited in the mounting groove. At least a portion of the detection circuit board is encapsulated between the support plate and the mounting groove, and the sensor is encapsulated between the support plate and the mounting groove.

[0009] The support plate is detachably mounted on the connecting seat.

[0010] The detection circuit board is equipped with connection terminals for connecting to a power source.

[0011] The transmission mechanism includes a transmission gear disposed in the pump body. An eccentric transmission shaft is provided between the transmission gear and the piston rod. The transmission gear is connected to the piston rod through the eccentric transmission shaft. When the driver is started, the transmission gear rotates and drives the piston rod to perform axial reciprocating motion through the eccentric transmission shaft, so as to convert the eccentric circular motion into linear motion.

[0012] The transmission gear is rotatably mounted inside the pump body, and the pump body is provided with a bearing that is rotatably connected to the transmission gear. The transmission mechanism also includes a first gear and a second gear arranged vertically. The first gear meshes with the second gear, and the second gear meshes with the transmission gear. The driver drive shaft is rotatably connected to the first gear. When the driver is started, the driver drive shaft drives the first gear to rotate, so that the second gear and the transmission gear rotate synchronously with the first gear.

[0013] The pump body includes a front cover and a rear shell assembly, with an inflation output end provided on the front cover; The front cover has an inflation chamber that communicates with the inflation output end. The piston end of the piston rod is correspondingly arranged with the inflation chamber. The rear shell assembly includes a first shell and a second shell assembled with the first shell. The bearing is arranged on the first shell. The first shell has a connecting side plate. The second shell has a connecting plate shell. The connecting plate shell and the connecting side plate extend upward along the top of the pump body. A gear mounting cavity for installing the first gear and the second gear is formed between the connecting plate shell and the connecting side plate. A connector is provided at the connection between the front cover and the first housing. The ends of the front cover and the first housing respectively abut against the connector, which is U-shaped. The driver is located above the rear housing assembly, and is positioned above the rear housing assembly along the length of the rear housing assembly and the front end of the front cover.

[0014] The beneficial technical effects of this utility model are as follows: By arranging the driver and pump body vertically, the length dimension of the air pump is reduced. The axis of the driver's drive shaft does not coincide with the axis of the piston rod. If the driver is damaged, it is easy to disassemble, replace and repair the driver on the air pump later. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a three-dimensional cross-sectional structural diagram of a novel air pump according to an embodiment of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of a novel air pump according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram showing the assembly and disassembly structure of a novel air pump according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram showing the disassembled structure of the detection assembly and pump body according to an embodiment of the present invention. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0021] See Figures 1-4 A novel air pump includes a pump body 1, a piston rod 2 axially reciprocatingly mounted on the pump body 1, and a driver 3 that is drively connected to the piston rod 2. The driver 3 and the pump body 1 are arranged vertically. The axis of the drive shaft of the driver 3 does not coincide with the axis of the piston rod 2. A transmission mechanism 4 is provided between the driver 3 and the piston rod 2. The driver 3 is drively connected to the piston rod 2 through the transmission mechanism 4. When the driver 3 is started, it drives the piston rod 2 to reciprocate axially through the transmission mechanism 4.

[0022] The pump body 1 is provided with an inflation output end 5 in the axial reciprocating motion direction corresponding to the piston rod 2, and a detection assembly 6 for detecting the inflation output end 5 is provided on the outside of the pump body 1.

[0023] The pump body 1 is provided with a connecting seat 7 on the outside corresponding to the inflation output end 5. The connecting seat 7 is provided with a spiral flow channel 8 that communicates with the inflation output end 5. The detection assembly 6 is provided on the connecting seat 7. The connecting seat 7 is provided with an anti-cavity groove 9 that communicates with the spiral flow channel 8 on the detection end of the detection assembly 6.

[0024] The connecting seat 7 has a core 10 inside, and a spiral groove 11 is provided on the core 10. A spiral flow channel 8 is formed between the spiral groove 11 of the core 10 and the inner side of the connecting seat 7.

[0025] In this embodiment, when the piston rod 2 reciprocates and drives the gas to be output along the inflation output end 5, the gas passes through the spiral groove 11 of the core 10 and is output to the outside of the connecting seat 7. The spiral groove 11 plays a buffering role in the flow direction of the gas, preventing the gas from being directly output to the outside of the connecting seat 7. The connecting seat 7 is provided with an outlet that connects to the inflation output end 5.

[0026] The connecting seat 7 is detachably installed on the outside of the pump body 1. The detection assembly 6 includes a detection circuit board 13 disposed on the support plate 12 and a sensor electrically connected to the detection circuit board 13. The connecting seat 7 is provided with a mounting groove. A portion of the detection circuit board 13 on the support plate 12 is limited in the mounting groove, and the sensor is also limited in the mounting groove. At least a portion of the detection circuit board 13 is encapsulated between the support plate 12 and the mounting groove, and the sensor is encapsulated between the support plate 12 and the mounting groove.

[0027] The support plate 12 is detachably installed on the connecting seat 7.

[0028] In this embodiment, an assembly hole for inserting screws is provided between the support plate 12 and the top of the connecting seat 7, and a through hole for inserting screws is provided on the detection circuit board 13 corresponding to the assembly hole, so that the circuit board 13 is limited vertically between the support plate 12 and the top of the connecting seat 7.

[0029] The detection circuit board 13 is provided with a connection terminal 14 for connecting to a power source, which facilitates the connection of the detection circuit board 13 to a power source.

[0030] The transmission mechanism 4 includes a transmission gear 15 disposed in the pump body 1. An eccentric transmission shaft 16 is provided between the transmission gear 15 and the piston rod 2. The transmission gear 15 is connected to the piston rod 2 through the eccentric transmission shaft 16. When the driver 3 is started, the transmission gear 15 rotates and drives the piston rod 2 to perform axial reciprocating motion through the eccentric transmission shaft 16, so as to convert the eccentric circular motion into linear motion.

[0031] In this embodiment, the piston rod 2 has a sealing groove on its piston for installing a sealing ring.

[0032] The transmission gear 15 is rotatably disposed inside the pump body 1, and the pump body 1 is provided with a bearing 17 rotatably connected to the transmission gear 15. The transmission mechanism 4 also includes a first gear 18 and a second gear 19 arranged vertically. The first gear 18 and the second gear 19 mesh with each other, and the second gear 19 meshes with the transmission gear 15. The drive shaft of the driver 3 is rotatably connected to the first gear 18. When the driver 3 is started, the drive shaft of the driver 3 drives the first gear 18 to rotate, so that the second gear 19 and the transmission gear 15 follow the first gear 18 to rotate synchronously.

[0033] The pump body 1 includes a front cover 20 and a rear shell assembly 21, and the front cover 20 is provided with an inflation output end 5; In this embodiment, the top of the first housing 23 of the rear housing assembly 21 is provided with a mounting groove for mounting the bearing 17, and the transmission gear 15 and the bearing 17 are rotatably connected by a rotating shaft.

[0034] In this embodiment, the piston rod 2 has a shaft hole at its end for inserting the eccentric drive shaft 16, and the transmission gear 15 has an eccentric shaft hole for inserting the eccentric drive shaft 16. The piston rod 2 has a mounting cavity corresponding to the shaft hole at its end, and a positioning bearing is fitted inside the mounting cavity to fit the eccentric drive shaft 16. A cover may be provided at the bottom of the mounting cavity. The eccentric drive shaft 16 is inserted into the shaft hole, mounting cavity, and cover at the end of the piston rod 2. The positioning bearing is positioned between the cover and the mounting cavity, which helps reduce frictional contact between the eccentric drive shaft 16 and the end of the piston rod 2 when the air pump is working.

[0035] The front cover 20 is provided with an inflation chamber 22 that communicates with the inflation output end 5. The piston end of the piston rod 2 is correspondingly arranged with the inflation chamber 22. The rear shell assembly 21 includes a first shell 23 and a second shell 24 assembled with the first shell 23. The bearing 17 is arranged on the first shell 23. The first shell 23 is provided with a connecting side plate 25. The second shell 24 is provided with a connecting plate shell 26. The connecting plate shell 26 and the connecting side plate 25 extend upward along the top of the pump body 1, and a gear mounting cavity 27 for installing the first gear 18 and the second gear 19 is formed between the connecting plate shell 26 and the connecting side plate 25. In this embodiment, the sealing ring on the piston of the piston rod 2 abuts against the inner side of the inflation chamber 22 to prevent the piston rod 2 from reciprocating and driving the gas to be output along the inflation output end 5, and the gas leaks outward between the piston and the inflation chamber 22.

[0036] A connector 28 is provided at the connection between the front cover 20 and the first housing 23. The ends of the front cover 20 and the first housing 23 respectively abut against the connector 28, which is U-shaped. The driver 3 is located above the rear housing assembly 21, and the driver 3 is positioned above the rear housing assembly 21 along the length of the rear housing assembly 21 and the front end direction of the front cover 20.

[0037] In this embodiment, the driver 3 and the front cover 20 are located on the same side of the front end of the rear shell assembly 21, which helps to reduce the length dimension of the product.

[0038] In this embodiment, the connector 28 is provided with a first positioning step groove and a second positioning step groove that are spaced apart from each other. One end of the front cover 20 abuts against the first positioning step groove, and one end of the first housing 23 abuts against the second positioning step groove.

[0039] In this embodiment, the connecting seat 7 is provided with a first positioning post, and the front cover 20 is provided with a second positioning post. The first positioning post and the second positioning post are provided correspondingly, and both the first positioning post and the second positioning post are provided with threaded holes for inserting screws, so that the front cover 20 and the connecting seat 7 can be detachably connected and fitted.

[0040] In this embodiment, the connecting side plate 25 is provided with a positioning rotating shaft, which is connected to the second gear 19. The driver 3 is a motor, and the motor shaft of the motor is inserted into the connecting side plate 25 and connected to the first gear 18. Alternatively, the connecting side plate 25 is provided with a linkage shaft that is rotatably connected to the first gear 18, and the motor shaft of the motor is connected to the linkage shaft. In this way, the connecting side plate 25 and the connecting plate housing 26 are assembled into a gear reduction box, which facilitates the disassembly and assembly of the motor.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A novel air pump, comprising a pump body (1), a piston rod (2) axially reciprocatingly mounted on the pump body (1), and a driver (3) drively connected to the piston rod (2), characterized in that: The driver (3) and the pump body (1) are arranged vertically. The axis of the drive shaft of the driver (3) does not coincide with the axis of the piston rod (2). A transmission mechanism (4) is provided between the driver (3) and the piston rod (2). The driver (3) is connected to the piston rod (2) through the transmission mechanism (4). When the driver (3) is started, it drives the piston rod (2) to reciprocate axially through the transmission mechanism (4). The transmission mechanism (4) includes a transmission gear (15) installed in the pump body (1). An eccentric transmission shaft (16) is provided between the transmission gear (15) and the piston rod (2). The transmission gear (15) is connected to the piston rod (2) through the eccentric transmission shaft (16). When the driver (3) is started, the transmission gear (15) rotates and drives the piston rod (2) to make axial reciprocating motion through the eccentric transmission shaft (16) to convert the eccentric circular motion into linear motion. The transmission gear (15) is rotatably disposed inside the pump body (1), and the pump body (1) is provided with a bearing (17) rotatably connected to the transmission gear (15). The transmission mechanism (4) further includes a first gear (18) and a second gear (19) arranged vertically. The first gear (18) and the second gear (19) mesh with each other, and the second gear (19) meshes with the transmission gear (15). The drive shaft of the driver (3) is rotatably connected to the first gear (18). When the driver (3) is started, the drive shaft of the driver (3) drives the first gear (18) to rotate, so that the second gear (19) and the transmission gear (15) follow the first gear (18) to rotate synchronously.

2. The novel air pump according to claim 1, characterized in that: The pump body (1) is provided with an inflation output end (5) in the axial reciprocating motion direction of the piston rod (2), and a detection assembly (6) for detecting the inflation output end (5) is provided on the outside of the pump body (1).

3. The novel air pump according to claim 2, characterized in that: The pump body (1) is provided with a connecting seat (7) on the outside corresponding to the inflation output end (5). The connecting seat (7) is provided with a spiral flow channel (8) that connects to the inflation output end (5). The detection assembly (6) is provided on the connecting seat (7). The connecting seat (7) is provided with a venting groove (9) that connects to the spiral flow channel (8) on the detection end of the detection assembly (6).

4. The novel air pump according to claim 3, characterized in that: The connecting seat (7) is provided with a core (10), and a spiral groove (11) is provided on the core (10). A spiral flow channel (8) is formed between the spiral groove (11) of the core (10) and the inner side of the connecting seat (7).

5. The novel air pump according to claim 3, characterized in that: The connector (7) is detachably installed on the outside of the pump body (1). The detection assembly (6) includes a detection circuit board (13) set on the support plate (12) and a sensor electrically connected to the detection circuit board (13). The connector (7) is provided with a mounting groove. A portion of the detection circuit board (13) of the support plate (12) is limited in the mounting groove, and the sensor is also limited in the mounting groove. At least a portion of the detection circuit board (13) is encapsulated between the support plate (12) and the mounting groove, and the sensor is encapsulated between the support plate (12) and the mounting groove.

6. The novel air pump according to claim 5, characterized in that: The support plate (12) is detachably installed on the connecting seat (7).

7. The novel air pump according to claim 5, characterized in that: The detection circuit board (13) is provided with a connection terminal (14) for connecting to a power source.

8. The novel air pump according to claim 1, characterized in that: The pump body (1) includes a front cover (20) and a rear shell assembly (21), and the front cover (20) is provided with an inflation output end (5); The front cover (20) is provided with an inflation chamber (22) that communicates with the inflation output end (5). The piston end of the piston rod (2) is correspondingly provided with the inflation chamber (22). The rear shell assembly (21) includes a first shell (23) and a second shell (24) assembled with the first shell (23). The bearing (17) is provided on the first shell (23). The first shell (23) is provided with a connecting side plate (25). The second shell (24) is provided with a connecting plate shell (26). The connecting plate shell (26) and the connecting side plate (25) extend upward along the top of the pump body (1). A gear mounting cavity (27) for installing the first gear (18) and the second gear (19) is formed between the connecting plate shell (26) and the connecting side plate (25). A connector (28) is provided at the connection between the front cover (20) and the first housing (23). The ends of the front cover (20) and the first housing (23) respectively abut against the connector (28), and the connector (28) is U-shaped. The driver (3) is located above the rear housing assembly (21), and the driver (3) is positioned above the rear housing assembly (21) along the length of the rear housing assembly (21) and the front end of the front cover (20).

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