CN219911102U

CN219911102U - Air pump and inflatable mattress with automatic stopping function

Info

Publication number: CN219911102U
Application number: CN202320178407.8U
Authority: CN
Inventors: 饶厚熙; 孙兵; 尹建兵
Original assignee: Jiangsu Guorun Electric Co ltd
Current assignee: Jiangsu Guorun Electric Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-10-27
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses an air pump with an automatic stopping function and an air mattress, wherein the air pump with the automatic stopping function comprises an air pump body, wherein the air pump body comprises a motor, a ventilation cylinder and a circuit board, and the motor is connected with the ventilation cylinder through an air outlet cover; and a one-way valve is arranged in the air outlet cover. An exhaust valve is arranged in the ventilation cylinder, and the exhaust valve is opened and closed through an exhaust valve switch assembly. The exhaust valve switch assembly comprises a cam, a gear motor and a micro switch, wherein the cam is arranged on an output shaft of the gear motor and used for controlling movement and resetting of the exhaust valve and opening of the micro switch. The micro switch is used for transmitting signals to the circuit board so as to control the motor to be turned off. The inflatable mattress comprises an inflatable mattress body and the air pump, and the air pump is communicated with the air channel of the inflatable mattress.

Description

Air pump and inflatable mattress with automatic stopping function

Technical Field

The utility model relates to the technical field of air pumps, in particular to an air pump with an automatic stopping function, and also relates to an inflatable mattress using the air pump.

Background

The air pump is a device for exhausting air from an enclosed space or adding air from the enclosed space, wherein the electric air pump continuously compresses air by electric power to generate air pressure.

Current air pumps, such as the 202110990165.8 electric air pump for inflatable products, typically employ a mechanical exhaust valve stem. The device specifically drives the rotation of the air exchange core through the hand wheel switch, and controls the micro-switch to realize the function of opening and closing the air pump motor. The applicant believes that the device, although acting to turn off the air pump motor, is essentially achieved by the hand wheel switch-microswitch-air pump motor path. However, no effective automatic opening and closing method is proposed for opening and closing the exhaust valve stem.

Disclosure of Invention

To overcome the disadvantages of the prior art, the present utility model aims to provide an air pump and an inflatable mattress with an automatic stopping function, so as to solve the problems mentioned in the background art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the air pump with the automatic stopping function comprises an air pump body, wherein the air pump body comprises a motor, a ventilation cylinder and a circuit board, and the motor is connected with the ventilation cylinder through an air outlet cover; the air outlet cover is internally provided with a fan blade and a one-way valve, and the fan blade is arranged on an output shaft of the motor;

an exhaust valve is arranged in the ventilation cylinder, and the exhaust valve is opened and closed through an exhaust valve switch assembly; the exhaust valve switch assembly comprises a cam, a speed reducing motor and a micro switch, wherein the cam is arranged on an output shaft of the speed reducing motor and used for controlling the movement and the resetting of the exhaust valve and the opening of the micro switch; the micro switch is used for transmitting signals to the circuit board so as to control the reduction motor to be turned off.

Further, the ventilation cylinder comprises a first opening, a second opening and a third opening, wherein the first opening, the second opening and the third opening are respectively used for being communicated with the air outlet cover, extending out of the air pump shell to serve as a connection port with an inflatable article, and an exhaust valve is arranged.

Further, one end of the exhaust valve is arranged in the air exchanging cylinder and is not smaller than the third opening in size, and the other end of the exhaust valve is kept outside the air exchanging cylinder; the exhaust valve realizes automatic reset through the spring, the one end of spring is fixed outside the third opening, and the other end is connected on the exhaust valve, and when the exhaust valve inwards moves, the spring changes from normal state to compression state.

Further, the second opening is arranged on the air pump shell, an air pipe connector is arranged at the second opening, and the air pipe connector is used for fixing an air pipe connected with the inflatable article.

Further, the air pump also comprises a controller, wherein the controller is used for controlling the working state of the air pump body; the controller comprises a controller shell, a silica gel key arranged outside the controller shell and a line control board arranged inside the controller shell; the silica gel button is connected with the drive-by-wire board to the pressure signal is transmitted to the drive-by-wire board, the drive-by-wire board is used for transmitting the signal to the circuit board.

Further, one end of the exhaust valve is provided with an exhaust valve nut for direct contact with the cam to reduce the pressure exerted on the cam surface.

Further, the air pump body is used for exchanging the vent department of air current with external environment and is equipped with the air inlet cover, be equipped with in the air inlet cover and prevent dust or tiny debris entering air pump body's sponge filter screen.

Further, the air pump shell comprises an upper cover and a lower cover, the upper cover and the lower cover are detachably connected, and a plurality of silica gel foot pads are arranged at the bottom of the lower shell.

The inflatable mattress comprises the air pump with the automatic stopping function and further comprises an inflatable mattress body, wherein the air pump is communicated with an air passage of the inflatable mattress body.

Compared with the prior art, the utility model has the following beneficial effects:

the cam in the air pump rotates to jack the exhaust valve, the air channel between the air exchanging cylinder and the object to be inflated is communicated, and air release is started. Meanwhile, the cam touches the micro switch, and the micro switch gives signals to the circuit board, so that the gear motor stops rotating, and the cam is kept at the current angle and state. The inflatable mattress adopts the air pump, so that the amount of inflation and deflation can be effectively controlled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic overall structure of embodiment 1 of the present utility model.

Fig. 2 is an exploded view of the air pump body of embodiment 1 of the present utility model.

FIG. 3 is a cross-sectional view taken along the direction A-A of example 1 of the present utility model.

Fig. 4 is an internal structural view of the air pump body of embodiment 1 of the present utility model.

Fig. 5 is an exploded view of the controller of embodiment 1 of the present utility model.

Fig. 6 is a schematic structural diagram of embodiment 2 of the present utility model.

In the drawings, each reference numeral is:

1-a nut; 2-an air pipe connector; 3-an upper cover; 4-a ventilation cylinder cover; 5-exhaust valve; 6-a sealing gasket; 7-a gas exchange cylinder; 8-a spring; 9-an exhaust valve nut; 10-cam; 11-a gear motor; 12-a fixed seat of a speed reducing motor; 13-a power line card; 14-a check valve sealing ring; 15-an air chamber sealing ring; 16-an air outlet cover; 17-an electric motor; 18-a motor sealing ring; 19-a sponge filter screen; 20-an intake shroud; 21-motor upper cover; 22-a lower cover; 23-silica gel foot pad; 24-micro switch; 25-a circuit board; 26-a wire control surface; 27-a silica gel key; 28-a controller upper cover; 29-a wire sheath; 30-a line control board; 31-a controller lower cover; 32-inflatable mattress body.

Detailed Description

In order to more clearly illustrate the present utility model, the present utility model will be described in further detail below with reference to examples and with reference to the accompanying drawings. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this utility model is not limited to the details given herein.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected, indirectly connected through an intermediate medium, or may be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1:

an air pump with an automatic stopping function as shown in fig. 1-5 comprises an air pump body and a controller for controlling the working state of the air pump body.

The air pump body comprises an air pump shell, a motor 17, a ventilation cylinder 7 and a circuit board 25, wherein the motor 17 is electrically connected with the circuit board 25. The air pump shell is provided with two vents with different positions, and the vents are respectively used for exchanging air with the inflatable articles and the external environment. The air pump shell comprises an upper cover 3 and a lower cover 22, the upper cover 3 and the lower cover 22 are detachably connected, and a plurality of silica gel foot pads 23 are arranged at the bottom of the lower cover 22. The motor 17 and the gas cylinder 7 are arranged in the gas pump shell, the motor 17 and the gas cylinder 7 are connected through the gas outlet cover 16, and the gas chamber sealing ring 15 is arranged at the joint. The check valve is arranged in the air outlet cover 16, and the outer edge of the check valve is sleeved with the check valve sealing ring 14, so that the passing air flow can only flow in a single direction. The motor 17 is fixed on the lower cover 22 through the motor upper cover 21, the motor upper cover 21 is connected with the lower cover 22 through bolts, and a motor sealing ring 18 is arranged at the motor 17.

The air exchanging cylinder 7 comprises a first opening, a second opening and a third opening, is provided with an air exchanging cylinder cover 4, and is respectively used for communicating an air outlet cover 16, extending out of the air pump shell to be used as a connecting port with an inflatable article, and is provided with an air outlet valve 5. The exhaust valve 5 is movable in a third opening, and a sealing gasket 6 is arranged at the opening, when the exhaust valve 5 moves inwards, the opening is opened, and the gas path between the inflatable object, the second opening, the third opening and the gas inlet cover is communicated. Specifically, one end of the exhaust valve 5 is arranged in the air exchanging cylinder 7, and the size is not smaller than that of the third opening, so that the third opening can be completely sealed; the other end is always kept outside the ventilation tube 7. And the exhaust valve 5 realizes automatic reset through the spring 8, one end of the spring 8 is fixed outside the third opening, and the other end is connected to the exhaust valve 5. When the exhaust valve 5 moves inward, the spring 8 is changed from the normal state to the compressed state.

In this embodiment, the opening of the exhaust valve 5 is achieved by means of an exhaust valve switch assembly. The exhaust valve switch assembly comprises a cam 10, a gear motor 11 and a micro switch 24, wherein the gear motor 11 and the micro switch 24 are electrically connected with a circuit board 25, and the gear motor 11 is fixed on a lower cover 22 through a gear motor fixing seat 12. The cam 10 is provided on an output shaft of the gear motor 11 for controlling the movement and the return of the exhaust valve 5. When the gear motor 11 is started, the cam 10 rotates along with the rotation speed of the gear motor 11 and contacts with the exhaust valve 5, the exhaust valve 5 is pushed inwards along with the increase of the rotation angle of the cam 10, and the air passage of the third opening is communicated. Since both the rotational speed and the rotational limit angle of the cam 10 need to be limited, a speed reduction motor 11 capable of reducing speed and increasing torque is employed. In order to increase the contact area of the cam 10 and the exhaust valve 5, the pressure acting on both surfaces is reduced. At this end of the exhaust valve 5, an exhaust valve nut 9 is provided, the exhaust valve nut 9 being screwed onto the exhaust valve 5, the cam 10 being in direct contact with the exhaust valve nut 9.

The second opening is arranged on the upper cover 3, and is provided with an air pipe connector 2 for fixing an air pipe connected with the inflatable article. In order to protect the air pipe connector 2, a nut 1 is further arranged outside the air pipe connector 2, and the air pipe connector 2 is sleeved in the nut 1.

The vent department that the air pump body is used for exchanging the air current with external environment is equipped with air inlet cover 20, is equipped with the sponge filter screen 19 that prevents dust or tiny debris entering air pump body in the air inlet cover 20.

The controller comprises a controller shell, a wire control surface 26 and a silica gel key 27 which are arranged on the surface of the controller shell, a wire control board 30 and a wire protection sleeve 29 which are arranged in the controller shell, wherein the controller shell comprises a controller upper cover 28 and a controller lower cover 31; pressing the silica gel button 27 can transmit signals to the drive-by-wire board 30, the drive-by-wire board 30 can transmit signals to the circuit board 25 of the air pump body, and the circuit board 25 is electrically connected with the motor 17, the gear motor 11 and the like to adjust the working state of the air pump. In order to clean the power supply line in the air pump shell, a power supply line clamp 13 is also arranged in the air pump shell to prevent the electric wire from shifting.

The working principle of this embodiment is as follows:

when the inflation function is started through the operation of the controller, the controller starts the motor 17, and the circuit board 25 is provided with a pressure sensor for monitoring the internal air pressure value of the inflated object in real time. When the detected value reaches a preset specified pressure, the circuit board 25 transmits a signal to the motor 17, and the motor 17 automatically stops the inflation.

When the controller operates the air release function to be on, the controller controls the gear motor 11 to be started, and the cam 10 on the gear motor 11 rotates to open the air release valve 5. When one end of the cam 10 fully pushes the exhaust valve 5 open, the other end touches the micro switch 24. The micro switch 24 transmits a signal to the circuit board 25, and the circuit board 25 transmits a signal to the gear motor 11 to turn off the gear motor 11. At this time, the exhaust valve 5 is kept in a fully opened state, and an exhaust function is realized.

When the inflation function is started, the gear motor 11 works to drive the cam 10 to rotate back to the original position. At this time, the exhaust valve 5 is closed, and the ventilation tube 7 is sealed.

Example 2:

an inflatable mattress as shown in fig. 6 comprises an inflatable mattress body 32 and the air pump of embodiment 1, wherein the air pump is in air passage communication with the inflatable mattress body 32 through an air pipe.

It should be understood that the foregoing examples of the present utility model are merely illustrative of the present utility model and not limiting of the embodiments of the present utility model, and that various other changes and modifications can be made by those skilled in the art based on the above description, and it is not intended to be exhaustive of all the embodiments of the present utility model, and all obvious changes and modifications that come within the scope of the utility model are defined by the following claims.

Claims

1. The air pump with the automatic stopping function is characterized by comprising an air pump body, wherein the air pump body comprises a motor (17), a ventilation cylinder (7) and a circuit board (25), and the motor (17) is connected with the ventilation cylinder (7) through an air outlet cover (16); a one-way valve is arranged in the air outlet cover (16);

an exhaust valve (5) is arranged in the ventilation cylinder (7), and the exhaust valve (5) is opened and closed through an exhaust valve switch assembly; the exhaust valve switch assembly comprises a cam (10), a gear motor (11) and a micro switch (24), wherein the cam (10) is arranged on an output shaft of the gear motor (11) and is used for controlling the movement and the resetting of the exhaust valve (5) and the opening of the micro switch (24); the micro switch (24) is used for transmitting signals to the circuit board (25) so as to control the reduction motor (11) to be turned off.

2. An air pump with automatic stopping function according to claim 1, characterized in that the ventilation cylinder (7) comprises a first opening, a second opening and a third opening, which are respectively used for communicating an air outlet cover (16), extending out of the air pump housing as a connection port with an inflated article, and providing an exhaust valve (5).

3. An air pump with automatic stopping function according to claim 2, characterized in that one end of the exhaust valve (5) is provided in the air exchange tube (7) and has a size not smaller than the third opening, and the other end is kept outside the air exchange tube (7); the exhaust valve (5) is automatically reset through the spring (8), one end of the spring (8) is fixed outside the third opening, the other end of the spring is connected to the exhaust valve (5), and when the exhaust valve (5) moves inwards, the spring (8) is changed into a compression state from a normal state.

4. An air pump with automatic stopping function according to claim 2, characterized in that the second opening is arranged on the air pump shell, an air pipe connector (2) is arranged at the second opening, and the air pipe connector (2) is used for fixing an air pipe connected with an inflatable article.

5. The air pump with an automatic stop function according to claim 1, further comprising a controller for controlling an operation state of the air pump body; the controller comprises a controller shell, a silica gel key (27) arranged outside the controller shell and a line control board (30) arranged inside the controller shell; the silica gel button (27) is connected with the drive-by-wire board (30) to transmit pressure signals to the drive-by-wire board (30), and the drive-by-wire board (30) is used for transmitting signals to the circuit board (25).

6. An air pump with automatic stopping function according to claim 1, characterized in that one end of the air outlet valve (5) is provided with an air outlet valve nut (9), said air outlet valve nut (9) being adapted to be in direct contact with the cam (10) for reducing the pressure exerted on the surface of the cam (10).

7. An air pump with automatic stopping function according to claim 1, characterized in that an air inlet cover (20) is arranged at a vent hole of the air pump body for exchanging air flow with the external environment, and a sponge filter screen (19) for preventing dust or fine impurities from entering the air pump body is arranged in the air inlet cover (20).

8. An air pump with automatic stopping function according to claim 4, characterized in that the air pump housing comprises an upper cover (3) and a lower cover (22), the upper cover (3) and the lower cover (22) are detachably connected, and a plurality of silica gel foot pads (23) are arranged at the bottom of the lower cover (22).

9. An inflatable mattress, characterized by comprising the air pump with the automatic stop function according to any one of claims 1-8, and further comprising an inflatable mattress body (32), wherein the air pump is communicated with an air channel of the inflatable mattress body (32).