CN223707855U

CN223707855U - An electric air pump

Info

Publication number: CN223707855U
Application number: CN202520368954.1U
Authority: CN
Inventors: 李和伟; 古汉奕; 李小河
Original assignee: Shenzhen Lvlian Technology Co Ltd
Current assignee: Shenzhen Lvlian Technology Co Ltd
Priority date: 2025-03-04
Filing date: 2025-03-04
Publication date: 2025-12-23
Anticipated expiration: 2035-03-04

Abstract

The utility model relates to the technical field of electric air pumps, in particular to an electric air pump. The electric inflator pump comprises a shell, an inflation tube, a piston assembly, a connecting bracket, a transmission assembly and a motor, wherein the inflation tube is arranged at one end of the shell, an inflation nozzle is arranged at one end, far away from the shell, of the inflation tube, the connecting bracket is arranged in the shell and connected with the shell, two ends of the connecting bracket are respectively arranged at one end of the piston assembly and one end of the motor, the transmission assembly is arranged on the connecting bracket, the other end of the motor is arranged on the shell, the motor is in transmission connection with the piston assembly through the transmission assembly, and the other end of the piston assembly is arranged at the end part of the shell and connected with the inflation tube. The connecting bracket is fixedly connected with the shell, the piston assembly and the motor are respectively connected and fixed with the connecting bracket and the shell, the components are connected and fixed with each other, and the whole fixed installation is more stable, so that the motor, the piston assembly and the whole installation stability are improved.

Description

Electric inflator pump

Technical Field

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

Background

The electric inflator pump is a common small electric tool and is widely applied to inflating various pneumatic devices, tires, air cushions, balls and the like. The core components of the electric inflator pump are a motor and an air pump. The motor drives the piston in the air pump through rotation, and air is sucked from the air inlet and then compressed and discharged through the air outlet. The compressed air is conveyed to equipment to be inflated through a pipeline, so that inflation is realized.

At present, a motor and a piston assembly of an electric inflator pump are directly installed and connected on a shell in the shell, and the installation stability is poor.

Disclosure of utility model

The embodiment of the utility model provides an electric inflator pump which improves the installation stability of a motor and a piston assembly.

The utility model discloses an electric inflator pump which comprises a shell, an inflation tube, a piston assembly, a connecting bracket, a transmission assembly, a motor and a main circuit board, wherein the inflation tube is arranged at one end of the shell, an inflation nozzle is arranged at one end, far away from the shell, of the inflation tube, the connecting bracket is arranged in the shell in a connecting way, one end of the piston assembly and one end of the motor are respectively provided with two ends of the connecting bracket, the transmission assembly is arranged on the connecting bracket, the other end of the motor is arranged on the shell, the motor is in transmission connection with the piston assembly through the transmission assembly, and the other end of the piston assembly is arranged at the end part of the shell and is connected with the inflation tube.

Optionally, a main circuit board is mounted in the housing and located beside the piston assembly, the connecting bracket and the motor, the main circuit board being electrically connected to the motor.

Optionally, a first buffer is provided between the motor and the housing.

Optionally, a supporting plate is arranged on the shell, a mounting groove is formed in the supporting plate, a mounting convex part is arranged on the end face of one end, far away from the connecting bracket, of the motor, and the mounting convex part is mounted in the mounting groove.

Optionally, a supporting boss is arranged on one side of the supporting piece, which is close to the connecting bracket, and the first buffer piece is installed on the supporting boss.

Optionally, the two sides of the connecting bracket and one end of the piston assembly connected with the inflation tube are arranged at the middle position of the inner side surface of the shell, and a gap is formed among the piston assembly, the connecting bracket, the motor and the shell through the support of the connecting bracket, the support piece and the first buffer piece, and the main circuit board is arranged in the gap.

Optionally, the piston assembly comprises a shell, one end of the shell is arranged at the end part of the shell and connected with the inflation tube, the other end of the shell is arranged on the connecting support, a feedback branch is arranged on the side surface of the shell, a feedback support is arranged on the feedback branch, and a feedback circuit board with a pressure sensor is arranged on the feedback support.

Optionally, the housing includes a first housing and a second housing, where a side surface of the first housing is disposed completely open, and the second housing is disposed on the opening of the side surface of the first housing.

Optionally, the end part of the first shell far away from one end of the inflation tube and the position of the second shell corresponding to the piston assembly are provided with ventilation holes, and the end of the motor far away from the connecting bracket is provided with cooling fan blades.

Optionally, the charging connector comprises an inflation head and a connector, the inflation head is connected with the connector, the connector is connected with the end part of the inflation tube, and the inflation head is used for being connected to the inflation port on the inflatable object for inflation.

Compared with the prior art, the electric inflator pump has the beneficial effects that the connecting bracket is arranged, the transmission component is arranged on the connecting bracket, the connecting bracket is connected and arranged with the shell in the shell, one end of the piston component and one end of the motor are respectively arranged at two ends of the connecting bracket, the other end of the motor is arranged on the shell, and the other end of the piston component is arranged at the end of the shell, so that the connecting bracket is fixedly connected with the shell, the piston component and the motor are respectively fixedly connected with the connecting bracket and the shell, all the components are mutually connected and fixedly formed, and the whole fixed installation is more stable, thereby improving the installation stability of the motor, the piston component and the whole.

Drawings

The technical scheme of the utility model will be further described in detail below with reference to the accompanying drawings and examples, wherein:

FIG. 1 is a schematic illustration of an electric inflator according to an embodiment of the present utility model;

FIG. 2 is another schematic illustration of an electric inflator according to an embodiment of the present utility model;

FIG. 3 is an exploded schematic view of an electric inflator according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a motor, a connecting bracket, a main circuit board, and a piston assembly according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of an electric inflator according to an embodiment of the present utility model;

Fig. 6 is a schematic view of a first housing according to an embodiment of the utility model.

The reference numerals in the drawings are as follows:

1. The device comprises a shell, 11, a first shell, 111, a supporting sheet, 111a, a mounting groove, 112, a supporting boss, 12, a second shell, 13, a vent hole, 2, an inflation tube, 3, a piston assembly, 31, a shell, 311, a feedback branch, 32, a piston, 4, a connecting bracket, 5, a transmission assembly, 51, a gear, 52, a fluted disc, 521, a meshing tooth, 6, a motor, 61, a mounting convex part, 7, a main circuit board, 8, a first buffer piece, 9, a gap, 10, a feedback bracket, 20, a feedback circuit board, 30, a buffer sleeve, 40, a heat dissipation fan blade, 50, a display screen, 60 and a charging interface. 70. An inflating nozzle 701, an inflating head 702 and a connector.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings.

The embodiment of the utility model provides an electric inflator pump, which is shown in figures 1 to 4, and comprises a shell 1, an inflation tube 2, a piston assembly 3, a connecting bracket 4, a transmission assembly 5 and a motor 6, wherein the inflation tube 2 is arranged at one end of the shell 1, an inflation nozzle 70 is arranged at one end of the inflation tube, which is far away from the shell 1, and the inflation nozzle 70 is used for inflating an inflation port connected to an inflatable object. The connecting bracket 4 is connected with the shell 1 in the shell 1, one end of the piston assembly 3 and one end of the motor 6 are respectively provided with two ends of the connecting bracket 4, the transmission assembly 5 is arranged on the connecting bracket 4, the other end of the motor 6 is arranged on the shell 1, the motor 6 is in transmission connection with the piston assembly 3 through the transmission assembly 5, and the other end of the piston assembly 3 is arranged at the end part of the shell 1 and connected with the inflation tube 2.

The utility model is provided with the connecting bracket 4, the transmission component 5 is arranged on the connecting bracket 4, the connecting bracket 4 is connected and arranged with the shell 1 in the shell 1, one end of the piston component 3 and one end of the motor 6 are respectively arranged at two ends of the connecting bracket 4, the other end of the motor 6 is arranged on the shell 1, and the other end of the piston component 3 is arranged at the end part of the shell 1, thus the connecting bracket 4 is fixedly connected with the shell 1, the piston component 3 and the motor 6 are respectively fixedly connected with the connecting bracket 4 and the shell 1, all the components are mutually connected and fixedly formed, the whole fixed installation is more stable, and the motor 6, the piston component 3 and the whole installation stability are improved.

Specifically, the transmission assembly 5 includes a gear 51 and a toothed disc 52, the gear 51 is mounted on an output shaft of the motor 6, the toothed disc 52 is rotatably mounted on the connecting bracket 4, a circumferential engagement tooth 521 is provided on one side of the toothed disc 52, the gear 51 is engaged with the engagement tooth 521, the piston assembly 3 includes a housing 31 and a piston 32, one end of the piston 32 is inserted into a cavity of the piston 32 of the housing 31, and the other end is eccentrically connected to the other side of the toothed disc 52. When the motor 6 rotates, the gear 51 drives the fluted disc 52 to rotate, and the fluted disc 52 drives the piston 32 to reciprocate in the cavity of the piston 32 in the rotating process of the fluted disc 52 because one end of the piston 32 is eccentrically connected with the fluted disc 52.

Specifically, a main circuit board 7 is installed in the housing 1 and located beside the piston assembly 3, the connection bracket 4 and the motor 6, and the main circuit board 7 is electrically connected with the motor 6. The main circuit board 7 is installed in the shell 1 and is located beside the piston assembly 3, the connecting bracket 4 and the motor 6, and the layout fully utilizes the space inside the shell 1, so that the extra occupation of the external space is avoided, the whole inflator pump is smaller in size and convenient to carry and store.

Further, a first buffer 8 is provided between the motor 6 and the housing 1. The first cushioning member 8 may be a rubber pad or the like. During operation, the motor 6 generates vibrations which are transmitted to the housing 1 via the connection structure, thereby affecting the stability and the service life of the inflator. By providing the first cushioning member 8 between the motor 6 and the housing 1, vibrations generated when the motor 6 is operated can be effectively absorbed and isolated, and the influence of the vibrations on the housing 1 and other components can be reduced.

Further, as shown in fig. 6, the housing 1 is provided with a support piece 111, the support piece 111 is provided with a mounting groove 111a, and the end surface of the motor 6, which is far away from the connecting bracket 4, is provided with a mounting convex portion 61, and the mounting convex portion 61 is mounted in the mounting groove 111 a. By providing the support piece 111 and the mounting groove 111a on the housing 1 and providing the mounting convex portion 61 on the end face of one end of the motor 6, the motor 6 can be accurately mounted on the housing 1, and support and limit of the end of the motor 6 are realized. Specifically, as shown in fig. 2 and 3, the housing 1 includes a first housing 111 and a second housing 121, one side surface of the first housing 111 is provided to be completely opened, and the second housing 121 is provided to cover the opening of the side surface of the first housing 111. The inner side walls of the first casing 111 and the second casing 121 are respectively provided with a supporting plate 111, and the mounting grooves 111a on the two supporting plates 111 are clamped on the mounting convex parts 61 to realize the positioning of one end of the motor 6.

The support piece 111 is provided with a support boss 112 near one side of the connection bracket 4, and the first cushion member 8 is mounted on the support boss 112. By providing the support boss 112 on one side of the support piece 111 and mounting the first cushioning member 8 on the support boss 112, more stable support can be provided for the cushioning member. The first buffer 8 may be inserted into an insertion cavity formed between the plurality of support bosses 112.

The two sides of the connecting bracket 4 and one end of the piston assembly 3 connected with the inflation tube 2 are arranged at the middle position of the inner side surface of the shell 1, and a gap 9 is formed among the piston assembly 3, the connecting bracket 4, the motor 6 and the shell 1 through the supporting of the connecting bracket 4, the supporting piece 111 and the first buffer piece 8, and the main circuit board 7 is arranged in the gap 9. The gap 9 provides a new installation space for the installation of the main circuit board 7, and the main circuit board 7 may be mounted on the inner wall surface of the housing 1 by screws.

Specifically, one end of the shell 31 is arranged at the end part of the shell 1 and connected with the inflation tube 2, the other end of the shell is arranged on the connecting bracket 4, a feedback branch 311 is arranged on the side surface of the shell 31, a feedback bracket 10 is arranged on the feedback branch 311, and a feedback circuit board 20 with a pressure sensor is arranged on the feedback bracket 10. The inflation pressure of the electric inflator can be detected by detecting the pressure sensor on the feedback circuit board 20 and displayed by the display screen 50, so that the user can know the inflation pressure conveniently.

Further, a buffer jacket 30 is provided between one end of the housing 31 mounted on the end of the housing 1 and the housing 31. The buffer sleeve 30 is arranged between the end part of the shell 1 and the shell 31, and forms a double buffer structure with the first buffer piece 8 at one end of the motor 6, so that vibration from different positions can be effectively absorbed, the possibility that the vibration is transmitted to the whole electric inflator is further reduced, and the overall operation stability of the electric inflator is improved.

The end of the first housing 111 far from the end of the inflation tube 2 and the position of the second housing 121 corresponding to the piston assembly 3 are both provided with vent holes 13. The piston assembly 3 and the motor 6 are main heat sources when the inflator pump operates, and the vent hole 13 is arranged on the shell 1, so that the operating temperature of the piston assembly 3 and the motor 6 can be reduced, the service life of the inflator pump can be prolonged, and the operating efficiency and the stability of the inflator pump can be improved.

The motor 6 is provided with cooling fan blades 40 at its end remote from the connecting bracket 4. The heat dissipation fan blade 40 is installed at one end of the motor 6 far away from the connecting support 4, and can actively dissipate heat generated during operation of the motor 6 to the external environment rapidly through air flow, so that the working temperature of the motor 6 can be reduced more effectively.

Further, the charging tube 2 is mounted at an end of the first housing 111, and the charging interface 60 is mounted at an end of the first housing 111 away from the charging tube 2, and the charging structure is electrically connected with the main circuit board 7.

Specifically, the inflation nozzle 70 includes an inflation head 701 and a connection head 702, the inflation head 701 is connected to the connection head 702, the connection head 702 is connected to an end of the inflation tube 2, and the inflation head 701 is used for inflation of an inflation port connected to an inflation target.

It should be understood that the foregoing embodiments are merely illustrative of the technical solutions of the present utility model and not limiting thereof, and that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, and all such modifications and substitutions are intended to fall within the scope of the appended claims.

Claims

1. The electric inflator pump is characterized by comprising a shell, an inflation tube, a piston assembly, a connecting bracket, a transmission assembly, a motor and a main circuit board, wherein the inflation tube is arranged at one end of the shell, an inflation nozzle is arranged at one end, far away from the shell, of the inflation tube, the connecting bracket is arranged in the shell in a connecting way with the shell, one end of the piston assembly and one end of the motor are respectively provided with two ends of the connecting bracket, the transmission assembly is arranged on the connecting bracket, the other end of the motor is arranged on the shell, the motor is in transmission connection with the piston assembly through the transmission assembly, and the other end of the piston assembly is arranged at the end part of the shell and is connected with the inflation tube.

2. The electric inflator of claim 1, wherein the main circuit board is mounted within the housing and is located beside the piston assembly, the connecting bracket, and the motor, the main circuit board being electrically connected to the motor.

3. The electric inflator of claim 2, wherein a first buffer is disposed between the motor and the housing.

4. The electric inflator according to claim 3, wherein a supporting plate is arranged on the housing, a mounting groove is formed in the supporting plate, a mounting protruding portion is arranged on the end face of one end, away from the connecting support, of the motor, and the mounting protruding portion is mounted in the mounting groove.

5. The electric inflator of claim 4, wherein a support boss is provided on a side of the support plate adjacent to the connection bracket, and the first cushion member is mounted on the support boss.

6. The electric inflator according to claim 5, wherein both sides of the connection bracket and an end of the piston assembly connected to the inflator are installed at an intermediate position of an inner side surface of the housing, and a gap is formed between the piston assembly, the connection bracket, the motor and the housing by the connection bracket, the support piece and the support of the first cushion member, and the main circuit board is installed in the gap.

7. The electric inflator according to any one of claims 1 to 6, wherein the piston assembly comprises a housing having one end mounted at an end of the housing and connected to the inflation tube and the other end mounted on the connection bracket, a feedback branch provided on a side of the housing, the feedback branch having a feedback bracket mounted thereon, and a feedback circuit board having a pressure sensor mounted thereon.

8. The electric inflator of any one of claims 1 to 6 wherein the housing comprises a first housing and a second housing, a side of the first housing being disposed entirely open, the second housing covering the opening in the side of the first housing.

9. The electric inflator pump of claim 8, wherein the end of the first housing far from the one end of the inflator tube and the position of the second housing corresponding to the piston assembly are provided with ventilation holes, and the end of the motor far from the connecting bracket is provided with heat dissipation fan blades.

10. The electric inflator according to any one of claims 1 to 6, wherein the inflator includes an inflation head and a connector, the inflation head being connected to the connector, the connector being connected to an end of the inflation tube, the inflation head being for inflating an inflation port connected to an inflatable subject.