CN212130705U - A mobile air pump - Google Patents

Abstract

The utility model relates to a mobile air pump, comprising a casing, a detachable inflatable pipe arranged on one side of the casing, a plurality of air inlets arranged on the other side of the casing, The movement, the battery and the cooling fan in the casing, the movement includes a movement mounting frame, an air outlet installed on the movement installation frame, a piston slidably arranged in the air outlet, and a device for driving the piston to slide. DC motor, the DC motor is connected with the piston through an eccentric drive mechanism; the piston is provided with an air intake hole, the air intake hole is provided with a first one-way valve, and the other end of the air outlet is provided with an inflator The inflatable pipe is communicated with the inflatable port, and one end of the inflatable pipe or the air outlet cylinder close to the inflatable port is provided with a second one-way valve for opening or closing the inflation channel. The utility model is small in size and convenient to carry.

Description

A mobile air pump

technical field

The utility model relates to an air pump, in particular to a mobile air pump.

Background technique

When the car is driving, the tires often run out of air, which requires the use of a pump to inflate the tires or an air pump to inflate the car maintenance service point. The pump is inflated, which is time-consuming and labor-intensive; When it is far away, it is unrealistic to go to the car maintenance service point for air pump inflation. In order to solve this problem, a vehicle-mounted air pump has appeared on the market, which mainly has the following shortcomings: 1) its structural design is not compact enough, and the space utilization rate is low, which leads to its large volume and inconvenient to carry; 2) it is powered by the car power supply. , no battery, inconvenient to use; and controlled by the power supply, it can only be used in automobiles, and the scope of application is narrow; therefore, there is an urgent need for a mobile air pump with compact structure, small size, easy portability and wide range of use, which is not only convenient for vehicles, but also It solves the problem of the tires running out of electricity during the driving process, and can also be used for inflation operations in other occasions, such as balloons, basketballs, footballs and other balls, motorcycles, bicycles, inflatable pads and other inflatable products and equipment.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art and provide a mobile air pump.

For achieving the above object, the technical scheme adopted by the present utility model is as follows:

A mobile inflatable pump, comprising a casing, a detachable inflatable pipe arranged on one side of the casing, a plurality of air inlets arranged on the other side of the casing, and a machine arranged in the casing. A core, a battery and a cooling fan, the movement includes a movement mounting frame, an air outlet set on the movement installation frame, a piston slidably arranged in the air outlet cylinder, and a cylinder mounted on the movement installation frame, and a DC motor for driving the piston to slide, the DC motor is connected to the piston through an eccentric drive mechanism; the piston is provided with an air intake hole, and the air intake hole is provided to open or close the air intake The first one-way valve of the hole, the other end of the air outlet is provided with an inflation port, the inflation tube is communicated with the inflation port, and the end of the inflation tube or the air outlet tube close to the inflation port is provided with an open or Close the second one-way valve of the inflation channel.

Further, the first one-way valve adopts a metal dome, the metal dome is arranged on the side of the piston away from the eccentric drive mechanism, and the connecting end of the metal dome is arranged on the side of the air inlet hole. , and is fixedly connected with the piston, and the movable end of the metal dome extends to the other side of the air inlet hole.

Further, the eccentric drive mechanism includes an eccentric shaft eccentrically arranged on the rotating output shaft of the DC motor through a connecting rod, and a rocker connecting the eccentric shaft and the piston, and the eccentric shaft is connected to the DC motor. The rotary output shaft of the rotary rod rotates around the center of the circle, one end of the rocker is rotatably arranged on the eccentric shaft, and the other end of the rocker is rotatably connected to the piston through a pin shaft.

Further, the central axis of the air outlet is perpendicular to the central axis of the DC motor, so that a receiving groove is formed on one side of the movement, and the battery is arranged in the receiving groove and is connected to the DC motor. In parallel, the cooling fan is disposed between the air outlet and the DC motor.

Further, the housing is provided with a mounting seat through screws, and the battery and the cooling fan are arranged in the accommodating slot through the mounting seat.

Further, a pressure sensor is provided on the air outlet cylinder, and an air flow hole is provided on the side wall of the air outlet cylinder at a position corresponding to the pressure sensor.

Further, a plurality of foot pads are arranged on the bottom wall of the casing.

Further, the shell includes an inner shell, an outer shell disposed outside the inner shell, the outer shell includes a shell body with open ends at both ends, and side plates disposed at both ends of the shell body, and the shell is connected to the shell body. The inner shell is connected by screws; the inner shell is formed by merging an upper shell and a lower shell, the upper shell and the lower shell are connected by screws, and the side plate and the inner shell are connected by snaps.

Further, it also includes a control board electrically connected to the battery, a display screen assembly and a button assembly integrally arranged on the control board, and a charging substrate electrically connected to the control board, disposed on the charging substrate and The lighting, the power switch, the DC12V interface and the Android charging tail plug interface electrically connected to the charging substrate, the display screen assembly, the button assembly, the lighting lamp, the power switch, the DC12V interface and the Android charging tail plug interface are all arranged in the on the housing.

Further, the casing is provided with a dust cover for closing or opening the DC12V interface, the Android charging tail plug interface and the air inlet.

Compared with the prior art, the beneficial effects of the present utility model are:

The air outlet and the DC motor of the movement of the utility model are arranged vertically, so that one side of the movement forms an accommodation slot for accommodating the battery and the cooling fan, and the arrangement of the components is compact, which improves the space utilization rate and reduces the cost of the utility model. Therefore, it occupies less space and is easy to carry; the inflatable tube of the utility model is detachably connected with the housing, when in use, the inflatable tube is communicated with the inflatable port, and when not in use, the inflatable tube is removed for easy storage; A rechargeable battery is set in the new housing, which can be charged indoors without relying entirely on the car power supply. Various balls such as football, motorcycles, bicycles, inflatable pads and other inflatable products and equipment have expanded the scope of use of inflatable pumps.

Description of drawings

1 is a perspective view of an embodiment of the present utility model;

FIG. 2 is a perspective view of an embodiment of the present utility model from another angle

3 is an exploded view of an embodiment of the present utility model;

FIG. 4 is a three-dimensional cross-sectional view of an embodiment of the present utility model (without side plates and gas tubes);

5 is an exploded view of the movement in an embodiment of the present utility model;

6 is a cross-sectional view of the first one-way valve of the present invention when it is opened;

7 is a cross-sectional view of the second one-way valve of the present invention when it is closed.

In the picture: 1. Inflatable tube, 2. Air inlet, 3. Movement, 4. Battery, 5. Cooling fan, 6. Movement mounting bracket, 7. Air outlet, 8. Piston, 9. DC motor, 10 , Air intake hole, 11, Inflatable port, 12, Inflatable channel, 13, Metal shrapnel, 14, Eccentric shaft, 15, Rocker, 16, Pin shaft, 17, Eccentric rotating balance block, 18, Accommodating groove, 19, Installation Seat, 20, Pressure sensor, 21, Foot pad, 22, Housing body, 23, Side panel, 24, Upper housing, 25, Lower housing, 26, Control panel, 27, Display screen, 28, Charging substrate, 29, Lighting Light, 30, Power switch, 31, DC12V port, 32, Android charging tail port, 33, Dust cover, 34, Keypad, 35, Key cover, 36, Key receiving hole, 37, Sealing ring, 38, Air flow hole.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 7, an embodiment of a mobile inflatable pump of the present invention includes a casing, a detachable inflatable tube 1 disposed on one side of the casing, and an inflatable tube 1 disposed on the other side of the casing. A number of air inlets 2 on one side, the core 3, the battery 4 and the cooling fan 5 arranged in the casing, the core 3 includes a core mounting frame 6, and the core mounted on the core mounting frame 6. The gas outlet 7, the piston 8 slidably arranged in the gas outlet 7, and the DC motor 9 arranged on the movement mounting frame 6 and used to drive the sliding of the piston 8, the DC motor 9 and the piston 8 is connected by an eccentric drive mechanism; the piston 8 is provided with an air inlet 10, the air inlet 10 is provided with a first one-way valve that opens or closes the air inlet 10, and the other end of the air outlet 7 An inflatable port 11 is provided, the inflatable tube 1 is communicated with the inflatable port 11, and one end of the inflatable tube 1 or the air outlet cylinder 7 close to the inflatable port 11 is provided with a second unit for opening or closing the inflation channel 12. to the valve.

Further, one end of the inflatable tube 1 is clamped to the inflatable port 11 .

Further, a sealing ring 37 is provided between the piston 8 and the inner wall of the air outlet cylinder 7 .

Further, the battery 4 is a rechargeable battery 4 .

As an embodiment of a mobile air pump of the present invention, the first one-way valve adopts a metal dome 13, and the metal dome 13 is arranged on the side of the piston 8 away from the eccentric drive mechanism. The connecting end of the metal dome 13 is disposed on one side of the air intake hole 10 and is fixedly connected to the piston 8 , and the movable end of the metal dome 13 extends to the other side of the air intake hole 10 .

As an embodiment of a mobile air pump of the present invention, the eccentric drive mechanism includes an eccentric shaft 14 eccentrically arranged on the rotating output shaft of the DC motor 9 through a connecting rod, and the eccentric shaft 14 is connected to the eccentric shaft 14. The rocker 15 of the piston 8, the eccentric shaft 14 rotates with the rotation output shaft of the DC motor 9 as the center of the circle, and one end of the rocker 15 is set on the eccentric shaft 14 through the bearing rotation. The other end of 15 is rotatably connected to the piston 8 through a pin 16 .

Further, an eccentric rotation balance block 17 is also provided on the rotation output shaft of the DC motor 9 .

As an embodiment of a mobile air pump of the present invention, the central axis of the air outlet cylinder 7 is perpendicular to the central axis of the DC motor 9, so that a receiving groove 18 is formed on one side of the movement. The battery 4 is arranged in the accommodating slot 18 and is parallel to the DC motor 9 , and the cooling fan 5 is arranged between the air outlet 7 and the DC motor 9 ;

Further, the housing is provided with a mounting seat 19 through screws, and the battery 4 and the cooling fan 5 are arranged in the accommodating slot 18 through the mounting seat 19 .

As an embodiment of a mobile air pump of the present invention, the air outlet cylinder 7 is provided with a pressure sensor 20, and the air pressure feedback air flow is provided on the side wall of the air outlet cylinder 7 at a position corresponding to the pressure sensor 20 hole 38. The pressure sensor 20 is used to detect the pressure of the air flow in the gas cylinder 7 .

As an embodiment of a mobile air pump of the present invention, a plurality of foot pads 21 are arranged on the bottom wall of the casing.

As an embodiment of a mobile air pump of the present invention, the casing includes an inner casing, and an outer casing disposed outside the inner casing. The side plates 23 at both ends of the shell body 22, the outer shell and the inner shell are connected by screws; the inner shell is formed by the combination of the upper shell 24 and the lower shell 25, and the upper shell 24 and the lower shell 25 pass through Screw connection, the side plate 23 and the inner shell are connected by snaps.

As an embodiment of a mobile air pump of the present invention, it also includes a control board 26 electrically connected to the battery 4, a display screen assembly and a key assembly integrated on the control board 26, and the control board 26. The charging substrate 28 electrically connected to the board 26, the lighting lamp 29 disposed on the charging substrate 28 and electrically connected to the charging substrate, the power switch 30, the DC12V interface 31 and the Android charging tail socket 32, the display screen assembly , a button assembly, a lighting lamp 29, a power switch 30, a DC12V interface 31 and an Android charging tail plug interface 32 are all arranged on the casing.

Further, the display component is used for displaying time.

Further, the casing is provided with a dust cover 33 for closing or opening the DC12V interface 31 , the Android charging tail plug interface 32 and the air inlet.

Further, the display screen assembly includes a display screen 27 , the display screen 27 is disposed on the casing, and the casing is further provided with a key receiving hole 36 , and the key assembly includes a screen disposed on the control board 26 . The button cover 35 is disposed on the side of the keyboard 34 away from the control board 26 , and the button cover 35 is arranged in the button accommodating hole 36 .

Further, the press keyboard 34 is provided with a lighting switch button, a switch button, a gear increase button and a gear decrease button.

Further, the control board 26 is disposed on the upper casing 24 by screws.

The working principle of the utility model is:

The power switch 30 is turned on, the DC motor 9 is energized, the rotating output shaft of the DC motor 9 drives the eccentric shaft 14 to rotate with the rotating output shaft as the center of the circle, and the eccentric shaft 14 drives the piston 8 to reciprocate through the rocker 15. When one end of the inflation port 11 moves, the volume of the inflation channel in the air outlet 7 becomes larger, and the pressure in the air outlet 7 decreases. Under the action of the pressure difference, the air flow impacts the metal shrapnel 13 of the first one-way valve, and the movable end of the metal shrapnel 13 occurs. Deformation, thereby opening the air inlet 10, the gas enters the air outlet 7, when the piston 8 moves to the end close to the inflation port 11, the volume of the inflation passage in the air outlet 7 becomes smaller, the airflow pressure in the air outlet 7 increases, and the first one-way The metal shrapnel 13 of the valve is reset, and under the action of the pressure difference, the airflow rushes open the second one-way valve in the inflation pipe 1, and the gas is injected into the tire.

The above-mentioned embodiments are only preferred embodiments of the present invention, rather than an exhaustive list of feasible implementations of the present invention. For those skilled in the art, any obvious changes made to it without departing from the principle and spirit of the present invention should be considered to be included in the protection scope of the claims of the present invention.

Claims (10)

1. A mobile air pump, characterized in that it comprises a housing, a detachable inflatable tube (1) arranged on one side of the housing, and a plurality of air inlets arranged on the other side of the housing (2), a movement (3), a battery (4) and a cooling fan (5) arranged in the casing, the movement (3) comprising a movement mounting bracket (6), which is arranged on the movement The air outlet cylinder (7) on the mounting frame (6), the piston (8) slidably arranged in the air outlet cylinder (7), and the piston (8) arranged on the movement mounting frame (6) and used for driving the piston ( 8) A sliding DC motor (9), the DC motor (9) is connected with the piston (8) through an eccentric drive mechanism; the piston (8) is provided with an air intake hole (10), the air intake A first one-way valve for opening or closing the air inlet (10) is arranged at the hole (10), and an inflation port (11) is arranged at the other end of the air outlet cylinder (7). The inflation port (11) is communicated with each other, and one end of the inflation tube (1) or the air outlet cylinder (7) close to the inflation port (11) is provided with a second one-way valve for opening or closing the inflation channel (12). 2. A mobile air pump according to claim 1, characterized in that the first one-way valve adopts a metal dome (13), and the metal dome (13) is arranged at a distance from the piston (8) On one side of the eccentric drive mechanism, the connecting end of the metal dome (13) is arranged on one side of the air intake hole (10), and is fixedly connected with the piston (8), and the metal dome (13) ) extends to the other side of the air intake hole (10). 3. A mobile air pump according to claim 1, characterized in that the eccentric drive mechanism comprises an eccentric shaft (14) eccentrically arranged on the rotary output shaft of the DC motor (9) through a connecting rod, and a rocker (15) connecting the eccentric shaft (14) and the piston (8), the eccentric shaft (14) rotates with the rotation output shaft of the DC motor (9) as the center of the circle, and the rocker One end of (15) is rotatably arranged on the eccentric shaft (14), and the other end of the rocker (15) is rotatably connected to the piston (8) through a pin shaft (16). 4. A mobile air pump according to claim 1, characterized in that, the central axis of the air outlet cylinder (7) is perpendicular to the central axis of the DC motor (9), so that in the center of the movement An accommodating groove (18) is formed on one side, the battery (4) is arranged in the accommodating groove (18) and is parallel to the DC motor (9), and the cooling fan (5) is arranged on the air outlet (18). 7) and the DC motor (9). 5 . The mobile air pump according to claim 4 , wherein a mounting seat ( 19 ) is provided on the casing through screws, and the battery ( 4 ) and the cooling fan ( 5 ) pass through the battery ( 4 ) and the cooling fan ( 5 ). 6 . The mounting seat (19) is arranged in the accommodating groove (18). 6. A mobile air pump according to claim 1, characterized in that, a pressure sensor (20) is provided on the air outlet cylinder (7), and a side wall of the air outlet cylinder (7) is connected with the pressure sensor (20) Air flow holes (38) are provided at the corresponding positions. 7. A mobile air pump according to claim 1, wherein a plurality of foot pads (21) are provided on the bottom wall of the casing. 8. A mobile air pump according to claim 1, characterized in that, the casing comprises an inner casing, an outer casing disposed outside the inner casing, and the outer casing comprises a casing body (open at both ends) 22), the side plates (23) arranged on both ends of the casing body (22), the outer casing and the inner casing are connected by screws; the inner casing is assembled by the upper casing (24) and the lower casing (25) The upper casing (24) and the lower casing (25) are connected by screws, and the side plate (23) and the inner casing are connected by snaps. 9. A mobile air pump according to claim 1, characterized in that, further comprising a control board (26) electrically connected to the battery (4), and a control board (26) integrally provided on the control board (26) A display screen assembly and a key assembly, a charging substrate (28) electrically connected to the control board (26), a lighting lamp (29) disposed on the charging substrate (28) and electrically connected to the charging substrate, a power supply A switch (30), a DC12V interface (31) and an Android charging tail plug interface (32), the display screen assembly, the button assembly, the lighting lamp (29), the power switch (30), the DC12V interface (31) and the Android charging tail The sockets (32) are all arranged on the casing. 10 . The mobile air pump according to claim 9 , wherein the casing is provided with the DC12V interface ( 31 ), the Android charging tail plug interface ( 32 ) and the Dust cover (33) for the inflation port.

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