CN222962998U

CN222962998U - Electric inflator pump

Info

Publication number: CN222962998U
Application number: CN202421344618.5U
Authority: CN
Inventors: 吴阳城
Original assignee: Individual
Current assignee: Individual
Priority date: 2024-06-12
Filing date: 2024-06-12
Publication date: 2025-06-10
Anticipated expiration: 2034-06-12

Abstract

The application relates to the technical field of air pumps, in particular to an electric air pump, which comprises a shell, wherein the shell comprises an inner shell with a containing space and an outer shell sleeved outside the inner shell, an air cylinder is arranged inside the inner shell and comprises a cylinder body, a first air outlet and a second air outlet, the first air outlet is connected with an air outlet pipe, a movable piston is arranged inside the cylinder body and is in transmission connection with a motor through a transmission structure, the motor can drive the piston to reciprocate in the cylinder body, an opening for exposing the second air outlet is formed in the inner shell, a circuit board fixed at the opening is arranged between the inner shell and the outer shell, and the circuit board is at least tightly matched with the second air outlet and is integrally provided with a pressure sensor at the position matched with the second air outlet. The application effectively solves the technical problems of messy internal flat cable, complex structure and heating during use in the prior art.

Description

Electric inflator pump

Technical Field

The application relates to the technical field of air pumps, in particular to an electric air pump.

Background

The electric inflator pump is widely applied in daily life, is often used for inflating automobile tires, various balls and inflatable articles, and has labor saving, higher inflation efficiency and wide acceptance when in use compared with the traditional inflator pump.

However, the existing electric air pump on the market has the problem of messy internal flat cable due to the existence of electronic elements, and the existing air pump has a complex structure and a large volume, and can generate heat when in use, so that a user is difficult to hold, and the experience of the user is seriously affected.

Disclosure of utility model

The application provides an electric inflator pump, which at least solves the technical problems of messy internal wiring, complex structure and difficult holding due to heating during use in the prior art.

In order to achieve the above purpose, the application provides an electric inflator pump, which comprises a shell, wherein the shell comprises an inner shell with a containing space and an outer shell sleeved outside the inner shell, an air cylinder is arranged inside the inner shell and comprises a cylinder body, a first air outlet and a second air outlet, the first air outlet is connected with an air outlet pipe, a movable piston is arranged inside the cylinder body and is in transmission connection with a motor through a transmission structure, the motor can drive the piston to reciprocate in the cylinder body, an opening for exposing the second air outlet is formed in the inner shell, a circuit board fixed at the opening is arranged between the inner shell and the outer shell, and the circuit board is at least tightly matched with the second air outlet and is integrally provided with a pressure sensor at the position matched with the second air outlet.

In some embodiments, the transmission structure comprises a first transmission gear, a second transmission gear and a connecting rod, wherein the first transmission gear and the output end of the motor synchronously rotate, the second transmission gear is meshed with the first transmission gear, one end of the connecting rod is connected with the piston, and the other end of the connecting rod is rotatably and eccentrically arranged on the second transmission gear.

In some embodiments, the cylinder is provided with a connecting portion extending toward the motor direction, the second transmission gear is rotatably provided on the connecting portion, and a rotation bearing coaxially provided with the second transmission gear is positioned on the connecting portion.

In some embodiments, the rotation axis of the first transmission gear is perpendicular to the rotation axis of the second transmission gear.

In some embodiments, the motor is fixedly connected with a connecting piece at one end close to the connecting portion, and the connecting piece is fixedly connected with the connecting portion.

In some embodiments, the connecting rod is sleeved with a limiting gasket on a rotating shaft at one end, which is in fit connection with the second transmission gear, and the limiting gasket is arranged on one side, away from the second transmission gear, of the rotating shaft.

In some embodiments, hollowed ventilation grids are respectively arranged at the upper end and the lower end of the shell, and a rotatable ventilation fan is connected to one side, close to the ventilation grids, of the motor.

In some of these embodiments, the motor outer sleeve is provided with a flexible buffer sleeve.

In some embodiments, the circuit board is fixedly connected with the cylinder through the inner housing.

In some of these embodiments, a gap is left between the inner housing and the outer housing.

According to the above, the application has the following beneficial effects:

1. Electronic components such as a pressure sensor and the like are directly integrated on a circuit board, so that complex wire arrangement in a shell is avoided, and the interior of the shell is concise;

2. The upper end and the lower end of the shell are provided with ventilation grids, and the lower end of the interior of the shell is provided with a ventilation fan, so that the ventilation effect is realized and the heat dissipation is accelerated;

3. A gap is arranged between the inner shell and the outer shell, so that heat conduction can be isolated, and the situation that the inner shell and the outer shell are difficult to hold due to heating is avoided;

4. the inflator pump device has simple integral structure and small volume.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic view of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present application;

FIG. 3 is a schematic diagram of a circuit board structure according to an embodiment of the present application;

FIG. 4 is an exploded view of the overall structure of an embodiment of the present application;

FIG. 5 is a schematic diagram of the cylinder and motor combination according to an embodiment of the present application;

FIG. 6 is a schematic diagram of the cylinder and motor combination according to an embodiment of the present application;

fig. 7 is an exploded view of the internal structure of an embodiment of the present application.

The reference numerals indicate that a shell 1, an inner shell 1.1, an outer shell 1.2, an avoidance groove 1.2.1, a ventilation grid 1.3, an air cylinder 2, a connecting part 2.1, a cylinder body 2.2, a first air outlet 2.3, a second air outlet 2.4, a piston 2.5, a one-way valve 2.6, a motor 3, a connecting piece 3.1, a ventilation fan 3.2, a buffer sleeve 3.3, an air outlet pipe 4, a circuit board 5, a display screen 5.1, keys 5.2, an LED lamp 5.3, a first transmission gear 6.1, a second transmission gear 6.2, a connecting rod 6.3, a limiting gasket 6.4, a rotating bearing 6.5 and a power supply 7.

Detailed Description

The present application will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments provided by the present application without making any inventive effort, are intended to fall within the scope of the present application. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those of ordinary skill in the art that the described embodiments of the application can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "a," "an," "the," and similar referents in the context of the application are not to be construed as limiting the quantity, but rather as singular or plural. The terms "comprises," "comprising," "includes," "including," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to only those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in connection with the present application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means greater than or equal to two. "and/or" describes the association relationship of the association object, and indicates that three relationships may exist, for example, "a and/or B" may indicate that a exists alone, a and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like, as used herein, are merely distinguishing between similar objects and not representing a particular ordering of objects.

The application provides an electric inflator pump which comprises a shell, wherein the shell comprises an inner shell with a containing space and an outer shell sleeved outside the inner shell, an air cylinder is arranged in the inner shell and comprises a cylinder body, a first air outlet and a second air outlet, the first air outlet is connected with an air outlet pipe, a movable piston is arranged in the cylinder body and is in transmission connection with a motor through a transmission structure, the motor can drive the piston to reciprocate in the cylinder body, an opening exposing the second air outlet is formed in the inner shell, a circuit board fixed at the opening is arranged between the inner shell and the outer shell, and the circuit board is tightly matched with the second air outlet at least and integrally provided with a pressure sensor at the position matched with the second air outlet.

Embodiment shows in fig. 1-7, an electric inflator pump, including casing 1, casing 1 includes inner casing 1.1 and the cover that is established in the outer casing 1.2 of inner casing 1.1 that has the accommodation space, and the both ends are provided with the air-exchanging grille 1.3 of fretwork respectively about casing 1. The inside upper end of inner casing 1.1 is provided with cylinder 2, the lower extreme is provided with motor 3, and the extension of cylinder 2 lower extreme towards motor 3 has connecting portion 2.1, and motor 3 is being close to the one end fixedly connected with connecting piece 3.1 of cylinder 2 to through connecting piece 3.1 and the connecting portion 2.1 fixed connection of cylinder 2, and then realize being in the same place cylinder 2 and motor 3 fixed connection.

Further, the cylinder 2 further comprises a cylinder body 2.2, a first air outlet 2.3 and a second air outlet 2.4, a movable piston 2.5 is arranged in the cylinder body 2.2, the piston 2.5 is in transmission connection with the motor 3 through a transmission structure, and the motor 3 can drive the piston 2.5 to reciprocate in the cylinder body 2.2.

The first air outlet 2.3 is connected with a flexible air outlet pipe 4, the air outlet pipe 4 passes through the ventilation grille 1.3 at the upper end of the shell 1 to extend outwards, and a one-way valve 2.6 for preventing air from flowing back is arranged at a position close to the first air outlet 2.3 inside the cylinder body 2.2.

The inner shell 1.1 is provided with an opening exposing the second air outlet 2.4, a circuit board 5 electrically connected with the motor 3 is arranged between the inner shell 1.1 and the outer shell 1.2, the circuit board 5 passes through the inner shell 1.1 and is fixedly connected with the air cylinder 2 through screws and is positioned at the opening, a pressure sensor (not shown in the figure) integrally arranged with the circuit board 5 is welded on the circuit board 5, the circuit board 5 is provided with the pressure sensor and is tightly matched with the opening on the inner shell 1.1 or at least with the second air outlet 2.4 in the opening on the inner shell 1.1, so that the pressure sensor is positioned in the second air outlet 2.4, the air pressure condition during inflation is monitored, and overcharge is prevented.

Specifically, the circuit board 5 is integrated with structures such as a display 5.1, keys 5.2 and the like on a side far away from the inner casing 1.1. The circuit board 5 is also integrated with a lighting system, such as an LED lamp 5.3, at the upper end, exposed outside the housing 1, which may facilitate auxiliary lighting when inflated. The avoidance groove 1.2.1 for exposing the structures such as the display screen 5.1 and the key 5.2 is formed in the outer shell 1.2, the circuit board 5 is arranged between the outer shell 1.2 and the inner shell 1.1, and meanwhile, the structures such as the pressure sensor, the display screen 5.1, the key 5.2 and the LED lamp 5.3 are integrated on the circuit board 5, so that the problem of disordered wiring in the shell 1 can be effectively avoided.

Further, the transmission structure comprises a first transmission gear 6.1, a second transmission gear 6.2 and a connecting rod 6.3, the motor 3 is vertically arranged in the inner casing 1.1, the upper end and the lower end of the motor 3 are respectively extended to form an output end, the first transmission gear 6.1 is connected with the upper end of the motor 3 close to the output end of the air cylinder 2 and synchronously rotates, the second transmission gear 6.2 is rotatably arranged on the connecting part 2.1, the rotating shaft of the first transmission gear 6.1 is vertically arranged with the rotating shaft of the second transmission gear 6.2, and the first transmission gear 6.1 is meshed with the second transmission gear 6.2. One end of the connecting rod 6.3 is connected with the piston 2.5, the other end of the connecting rod is rotatably and eccentrically arranged on the second transmission gear 6.2, the connecting rod 6.3 is sleeved with a limiting gasket 6.4 on a rotating shaft at one end, which is matched and connected with the second transmission gear 6.2, of the connecting rod, the limiting gasket 6.4 is arranged on one side, far away from the second transmission gear 6.2, of the rotating shaft, and the limiting gasket 6.4 can effectively prevent the connecting rod 6.3 from falling off in actual use. When the motor 3 is started, the output end of the motor drives the first transmission gear 6.1 to rotate, the first transmission gear 6.1 drives the second transmission gear 6.2 meshed with the first transmission gear to rotate, and when the second transmission gear 6.2 rotates, the connecting rod 6.3 eccentrically connected with the second transmission gear 6.2 drives the piston 2.5 to reciprocate in the cylinder 2.2 and is matched with the one-way valve 2.6, so that the inflation operation is realized.

Specifically, the connecting portion 2.1 is positioned with a rotating bearing 6.5 coaxially arranged with the second transmission gear 6.2, and the rotating bearing 6.5 is sleeved on the rotating shaft of the second transmission gear 6.2 and is matched with the connecting portion 2.1, so that the second transmission gear 6.2 rotates more smoothly.

Further, a ventilator 3.2 is arranged in the inner shell 1.1, and the ventilator 3.2 is connected with the lower end of the motor 3 close to the output end of the ventilation grille 1.3 and synchronously rotates.

Further, the motor 3 is externally sleeved with a flexible buffer sleeve 3.3, the buffer sleeve 3.3 is used for reducing shake and noise of the motor 3, and the buffer sleeve 3.3 can be a rubber sleeve or a silica gel sleeve.

Further, a power supply 7 electrically connected with the motor 3 is arranged between the outer casing 1.2 and the inner casing 1.1, and the power supply 7 is a rechargeable battery and is arranged between the outer casing 1.2 and the inner casing 1.1, so that later maintenance and replacement are facilitated.

Furthermore, a part of clearance is reserved between the inner shell 1.1 and the outer shell 1.2, and the clearance can effectively isolate the long-time running heating of the motor 3 and the friction heating of the piston 2.5 when the inflator pump is used, so that the problem that a user is difficult to hold is avoided.

It should be understood by those skilled in the art that the technical features of the above-described embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above-described embodiments are not described, however, they should be considered as being within the scope of the description provided herein, as long as there is no contradiction between the combinations of the technical features.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. The electric inflator pump comprises a shell, wherein the shell comprises an inner shell with a containing space and an outer shell sleeved outside the inner shell, and is characterized in that an air cylinder is arranged inside the inner shell, the air cylinder comprises a cylinder body, a first air outlet and a second air outlet, the first air outlet is connected with an air outlet pipe, a movable piston is arranged inside the cylinder body, the piston is in transmission connection with a motor through a transmission structure, the transmission structure comprises a first transmission gear, a second transmission gear and a connecting rod, the air cylinder is provided with a connecting part extending towards the direction of the motor, the second transmission gear is rotatably arranged on the connecting part, a rotating bearing sleeved on a rotating shaft of the second transmission gear and matched with the connecting part and the second transmission gear is positioned on the connecting part, the first transmission gear and the output end of the motor synchronously rotate, the rotating shaft of the first transmission gear and the rotating shaft of the second transmission gear are vertically arranged, the second transmission gear and the first transmission gear are meshed, one end of the transmission gear and the first transmission gear are connected, the other end of the piston and the piston are rotatably arranged on the connecting rod, the second transmission gear and the air outlet are in close fit with the inner shell, and the air outlet is provided with an opening, and the air inlet is tightly matched with the inner shell, and the air inlet is tightly arranged on the inner shell, and the air pump is provided with an air inlet, and at least an air inlet opening.

2. The electric inflator of claim 1, wherein the motor is fixedly connected with a connecting member at one end near the connecting portion, and the connecting member is fixedly connected with the connecting portion.

3. The electric inflator of claim 1, wherein the connecting rod is provided with a limiting gasket in a sleeved mode on a rotating shaft at one end, which is connected with the second transmission gear in a matched mode, of the connecting rod, and the limiting gasket is arranged on one side, away from the second transmission gear, of the rotating shaft.

4. The electric inflator pump of any one of claims 1 to 3, wherein hollowed-out ventilation grids are respectively arranged at the upper end and the lower end of the shell, and a rotatable ventilation fan is connected to one side, close to the ventilation grids, of the motor.

5. The electric inflator of any one of claims 1 to 3, wherein a flexible buffer sleeve is sleeved outside the motor.

6. The electric inflator of any one of claims 1 to 3, wherein the circuit board is fixedly connected with the cylinder through the inner housing.

7. The electric inflator of any one of claims 1 to 3, wherein a gap is left between the inner housing and the outer housing.