CN220705861U - Inflator pump - Google Patents

Abstract

The utility model relates to an inflator pump, which comprises a shell, wherein a motor, a transmission assembly connected with the motor and a cylinder assembly connected with the transmission assembly are arranged in the shell, the transmission assembly comprises an output gear connected with the motor, a reduction gear meshed with the output gear and a driving shaft eccentrically arranged on the reduction gear, the cylinder assembly comprises a cylinder, a piston movably arranged in the cylinder, a connecting rod connected with the piston and an output interface arranged at one end of the cylinder, the connecting rod is rotationally connected with the driving shaft, the connecting rod drives the piston to reciprocate in the cylinder, and the output interface outputs compressed air in the cylinder; the end face of the piston, which is close to the connecting rod, is provided with the concave yielding groove, the yielding groove is close to the output gear, and the output gear is at least partially contained in the yielding groove, so that the inner space of the inflator pump is fully utilized under the condition that the piston stroke is not changed, the width of the inflator pump is reduced, and the portability and miniaturization of the inflator pump are improved.

Description

Inflator pump

Technical Field

The utility model relates to the field of inflation, in particular to an inflator pump.

Background

The air pump is called an air pump and an air pump, the connecting rod piston is driven to reciprocate through the operation of the motor, the air outlet one-way valve is closed and the volume of the containing cavity is increased when the piston is in an air suction stroke, negative pressure is formed to suck air, when the piston is converted into a compression stroke from the air suction stroke, the air inlet one-way valve is closed, the air outlet is opened under the action of compressed air, compressed air is output, the air pump is continuously circulated, the air pump is continuously pressurized until the set required pressure is reached, and then the target is inflated. The inflator pump is widely used for products such as tires, rubber balls, rubber boats and the like, and most of the use sites are outdoor, so that high requirements are placed on portability and miniaturization of the inflator pump.

In order to facilitate outdoor use, the current air pump on the market is powered by a battery, most of air pump structures still have the problem of large volume, and because the internal structure layout is not compact enough, a large space is reserved for matching installation of finished products, and the miniaturization and portability of the air pump are affected.

In view of the above, it is desirable to provide an improved inflator that overcomes the shortcomings of the prior art.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the inflator pump which is compact in structure and reasonable in layout.

The technical scheme adopted for solving the problems in the prior art is as follows: the inflator pump comprises a shell, wherein a motor, a transmission assembly connected with the motor and a cylinder assembly connected with the transmission assembly are arranged in the shell, the transmission assembly comprises an output gear connected with the motor, a reduction gear meshed with the output gear and a driving shaft eccentrically arranged on the reduction gear, the cylinder assembly comprises a cylinder, a piston movably arranged in the cylinder, a connecting rod connected with the piston and an output interface arranged at one end of the cylinder, the connecting rod is rotationally connected with the driving shaft, the connecting rod drives the piston to reciprocate in the cylinder, and the output interface outputs compressed air in the cylinder; the end face, close to the connecting rod, of the piston is provided with a concave yielding groove, the yielding groove is close to the output gear, and the output gear is at least partially accommodated in the yielding groove.

The further improvement scheme is as follows: the relief groove extends along the axial direction of the output gear, and penetrates through the bottom surface of the piston.

The further improvement scheme is as follows: the connecting rods are fixed on two sides of the yielding grooves.

The further improvement scheme is as follows: the motor has a first axis about which the motor rotates, the cylinder has a second axis along which the piston reciprocates within the cylinder, and the first axis is perpendicular to the second axis.

The further improvement scheme is as follows: the output interface is a bent L-shape, and the output interface comprises a first channel extending along the first axis direction and a second channel extending along the second axis direction.

The further improvement scheme is as follows: the inflator pump comprises an air pipe arranged in the shell, the air pipe comprises an air inlet end connected with the output interface and an air outlet end movably arranged in the shell, the air inlet end is at least partially contained in the shell, and the air outlet end extends out of the shell.

The further improvement scheme is as follows: the output interface comprises a first outlet communicated with the air pipe, and the conducting direction of the first outlet and the air inlet end is parallel to the first axis.

The further improvement scheme is as follows: the inflator pump comprises a sensor arranged in the shell, a control circuit board electrically connected with the sensor and a battery cell electrically connected with the control circuit board, and the sensor is connected with the cylinder assembly.

The further improvement scheme is as follows: the output interface comprises a second outlet connected with the sensor, and the conducting direction of the second outlet and the sensor is parallel to the second axis.

The further improvement scheme is as follows: the battery cell is arranged in parallel with the motor, the transmission assembly and the cylinder assembly are positioned above the motor and the battery cell, and the control circuit board is arranged in parallel in the lower space of the motor.

Compared with the prior art, the utility model has the following beneficial effects: the end face of the piston, which is close to the connecting rod, is provided with the concave abdication groove, the abdication groove is arranged close to the output gear, and the output gear is at least partially accommodated in the abdication groove, so that the internal space of the inflator pump is fully utilized and the width of the inflator pump is reduced under the condition that the stroke of the piston is not changed; through with output interface sets up into the L shape of buckling, first passageway extends along first axis direction, second passageway extends along the second axis direction, and structural layout is compacter reasonable, has improved the portability and the miniaturization of pump.

Drawings

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic view of the overall construction of an inflator of the present utility model;

FIG. 2 is a schematic view of the inflator shown in FIG. 1 with a first angle of the inflator removal portion housing;

FIG. 3 is a schematic view of a second angle of the inflator removal portion housing of FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of the inflator of FIG. 1.

Meaning of reference numerals in the drawings:

inflator pump 100 motor 1

Output gear 21 of transmission assembly 2

Reduction gear 22 drive shaft 23

Cylinder assembly 3 Cylinder 31

Connecting rod 32 piston 33

Yielding slot 331 output interface 34

First outlet 341 second outlet 342

First channel 343 second channel 344

Air inlet end 41 of air pipe 4

Exhaust end 42 housing 5

Sensor 6 control circuit board 7

Cell 8

First axis X1 and second axis X2

Detailed Description

The utility model will be described in further detail with reference to the drawings and embodiments.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The words such as "upper", "lower", "front", "rear", "left", "right", etc., indicating an azimuth or a positional relationship are merely based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 and 2, embodiments of the present utility model relate to an inflator 100, the inflator 100 being widely used for inflating tires, rubber balls, rubber boats, and the like. The inflator pump 100 comprises a shell 5, wherein a motor 1, a transmission assembly 2 connected with the motor 1, a cylinder assembly 3 connected with the transmission assembly 2 and an air pipe 4 arranged on the shell 5 are arranged in the shell 5, the motor 1 transmits power to the cylinder assembly 3 through the transmission assembly 2, and the cylinder assembly 3 compresses air and outputs the compressed air through the air pipe 4, so that an object to be inflated is inflated.

Further, the transmission assembly 2 includes an output gear 21 connected to the motor 1, a reduction gear 22 meshed with the output gear 21, and a driving shaft 23 eccentrically disposed on the reduction gear 22, and the cylinder assembly 3 includes a cylinder 31, a piston 33 movably disposed in the cylinder 31, a connecting rod 32 connected to the piston 33, and an output interface 34 mounted at one end of the cylinder 31. The transmission assembly 2 is connected with the cylinder assembly 3 through the connecting rod 32, the connecting rod 32 is rotationally connected with the driving shaft 23, the driving shaft 23 is eccentrically arranged on the reduction gear 22, when the reduction gear 22 rotates, the connecting rod 32 drives the piston 33 to reciprocate in the cylinder 31, and the output interface 34 outputs compressed air in the cylinder 31.

In this embodiment, the end surface of the piston 33, which is close to the connecting rod 32, is provided with a concave yielding groove 331, the yielding groove 331 is close to the output gear 21, and the output gear 21 is at least partially accommodated in the yielding groove 331, so that the internal space of the inflator 100 is fully utilized without changing the stroke of the piston 33, the width of the inflator 100 is reduced, and the portability and miniaturization of the inflator 100 are improved.

Further, the relief groove 331 extends along the axial direction of the output gear 21, the relief groove 331 penetrates through the bottom surface of the piston 33, and the connecting rods 32 are fixed on two sides of the relief groove 331, so that the piston connecting rod mechanism is reasonable in layout, the relief groove 331 achieves the effect of avoiding, meanwhile, the balance of the piston 33 is achieved, friction in the movement process of the piston 33 is reduced, and the service life of the piston 33 is prolonged.

Referring again to fig. 2, the motor 1 has a first axis X1, the motor 1 rotates around the first axis X1, the cylinder 31 has a second axis X2, and the piston 33 reciprocates along the second axis X2 in the cylinder 31, and the first axis X1 is perpendicular to the second axis X2. The output port 34 is bent in an L shape, and the output port 34 includes a first channel 343 extending along the first axis X1 and a second channel 344 extending along the second axis X2.

Further, the right-angle edge formed outside the output interface 34 is attached to the inner wall of the housing 5, and the right-angle edge formed inside the output interface 34 is attached to the cylinder 31, so that the space between the housing 5 and the cylinder 31 is reasonably utilized, the structural layout is more compact and reasonable, and the portability and miniaturization of the inflator 100 are improved.

In this embodiment, the air pipe 4 includes an air inlet end 41 connected to the output port 34 and an air outlet end 42 movably mounted to the housing 5, the air inlet end 41 is at least partially contained in the housing 5, and the air outlet end 42 extends out of the housing 5. The air pipe 4 comprises a storage state and a use state, and when the air pipe 4 is in the storage state, the air exhaust end 42 is connected with the shell 5; the exhaust end 42 is separated from the housing 5 when the air pipe 4 is in use. By accommodating the air pipe 4, the volume of the inflator 100 is smaller in the accommodating state, which is beneficial to carrying the inflator 100.

Referring to fig. 3, the inflator 100 further includes a sensor 6 disposed in the housing 5, a control circuit board 7 electrically connected to the sensor 6, and a battery cell 8 electrically connected to the control circuit board 7, where the sensor 6 is connected to the cylinder assembly 3 and is used for detecting the air pressure of the cylinder 31, and the control circuit board 7 controls the stopping or working of the motor 1 according to the air pressure of the cylinder 31, so that the inflation pressure is within a safety range.

In this embodiment, the electric core 8 and the motor 1 are arranged in parallel, the transmission assembly 2 and the cylinder assembly 3 are located above the motor 1 and the electric core 8, the control circuit board 7 is arranged in parallel in the lower space of the motor 1, and the whole space of the inflator 100 is fully utilized, which is beneficial to miniaturization of the inflator 100.

Further, the output interface 34 includes a first outlet 341 connected to the air pipe 4 and a second outlet 342 connected to the sensor 6, the conducting direction of the first outlet 341 and the air inlet 41 is parallel to the first axis X1, the conducting direction of the second outlet 342 and the sensor 6 is parallel to the second axis X2, the sensor 6 is disposed above the cylinder assembly 3, and the conducting path of air is short, so that the detection of the sensor 6 is more accurate.

According to the utility model, the concave yielding groove 331 is formed in the end surface of the piston 33, which is close to the connecting rod 32, and the yielding groove 331 is arranged close to the output gear 21, the output gear 21 is at least partially accommodated in the yielding groove 331, so that the internal space of the inflator 100 is fully utilized and the width of the inflator 100 is reduced under the condition that the stroke of the piston 33 is not changed; by providing the output port 34 with a bent L-shape, the first channel 343 extends along the first axis X1, and the second channel 344 extends along the second axis X2, the structural layout is more compact and reasonable, and portability and miniaturization of the inflator 100 are improved.

The present utility model is not limited to the above-described embodiments. Those of ordinary skill in the art will readily appreciate that many other alternatives to the inflator of the present utility model are possible without departing from the spirit and scope of the present utility model. The protection scope of the present utility model is subject to the claims.

Claims (10)

1. The inflator pump comprises a shell, wherein a motor, a transmission assembly connected with the motor and a cylinder assembly connected with the transmission assembly are arranged in the shell, the transmission assembly comprises an output gear connected with the motor, a reduction gear meshed with the output gear and a driving shaft eccentrically arranged on the reduction gear, the cylinder assembly comprises a cylinder, a piston movably arranged in the cylinder, a connecting rod connected with the piston and an output interface arranged at one end of the cylinder, the connecting rod is rotationally connected with the driving shaft, the connecting rod drives the piston to reciprocate in the cylinder, and the output interface outputs compressed air in the cylinder; the method is characterized in that: the end face, close to the connecting rod, of the piston is provided with a concave yielding groove, the yielding groove is close to the output gear, and the output gear is at least partially accommodated in the yielding groove.

2. The inflator of claim 1 wherein: the relief groove extends along the axial direction of the output gear, and penetrates through the bottom surface of the piston.

3. The inflator of claim 1 wherein: the connecting rods are fixed on two sides of the yielding grooves.

4. The inflator of claim 1 wherein: the motor has a first axis about which the motor rotates, the cylinder has a second axis along which the piston reciprocates within the cylinder, and the first axis is perpendicular to the second axis.

5. The inflator of claim 4, wherein: the output interface is a bent L-shape, and the output interface comprises a first channel extending along the first axis direction and a second channel extending along the second axis direction.

6. The inflator of claim 4, wherein: the inflator pump comprises an air pipe arranged in the shell, the air pipe comprises an air inlet end connected with the output interface and an air outlet end movably arranged in the shell, the air inlet end is at least partially contained in the shell, and the air outlet end extends out of the shell.

7. The inflator of claim 6, wherein: the output interface comprises a first outlet communicated with the air pipe, and the conducting direction of the first outlet and the air inlet end is parallel to the first axis.

8. The inflator of claim 4, wherein: the inflator pump comprises a sensor arranged in the shell, a control circuit board electrically connected with the sensor and a battery cell electrically connected with the control circuit board, and the sensor is connected with the cylinder assembly.

9. The inflator of claim 8, wherein: the output interface comprises a second outlet connected with the sensor, and the conducting direction of the second outlet and the sensor is parallel to the second axis.

10. The inflator of claim 8, wherein: the battery cell is arranged in parallel with the motor, the transmission assembly and the cylinder assembly are positioned above the motor and the battery cell, and the control circuit board is arranged in parallel in the lower space of the motor.