CN214145796U

CN214145796U - Air pump

Info

Publication number: CN214145796U
Application number: CN202023151218.7U
Authority: CN
Inventors: 吉绍山; 孟瑞; 李凯凯; 梅杰; 陈吉
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-07
Anticipated expiration: 2030-12-24

Abstract

The utility model relates to an air pump, which comprises a motor; the gas compression assembly is driven by the motor and is used for compressing and discharging air; a main machine housing accommodating the motor and the gas compression assembly and having an installation part for installing a DC power supply; a support leg for supporting the main body case in a state where a lower surface thereof is disposed on the mounting surface; a holding part connected with the main machine shell and extending in parallel with the lower surface of the supporting leg; the operating part is arranged at the top of the main machine shell and is used for a user to operate so as to adjust the working state of the air pump; the air pump is also provided with a light assembly, and the light assembly is positioned below the operation part and is close to the operation part; the light assembly has at least two working modes, and the orthographic projection of the operating part is at least partially overlapped with the orthographic projection of the light assembly. The air pump has compact integral structure, small occupied space and high attractiveness.

Description

Air pump

Technical Field

The utility model relates to an air pump.

Background

An air pump, also known as an inflation pump, is a tool that inflates air by the operation of a motor. The inflation device is mainly used for inflating tires of automobiles, motorcycles, bicycles and the like. Be provided with the air cock in the air pump's structural design, aim at the air inlet of tire with the air cock when aerifing and can aerify, nevertheless when needs aerify at night, because the environment is darker, then need spend the air cock of longer time with the inflator to aim at the air inlet of tire. In addition, the barometer includes dial plate and transparent table lid, is provided with scale and pointer on the dial plate, and wherein the pointer includes the scale mark and the numerical value that corresponds with the scale mark, because the night environment is darker, the reading of the barometer is unclear, the reading of being not convenient for. In order to solve the problem, a lighting lamp is usually installed on the air pump in the prior art, but in the prior art, the lighting lamp is an independent component which is independently installed above the shell of the air pump and protrudes out of the shell, for example, the vehicle-mounted inflator pump with the warning sign disclosed in chinese patent publication No. CN203130413U, although the arrangement can solve the lighting problem, the occupied space is large, and the appearance is not beautiful.

In addition, although the vehicle-mounted inflator with the warning sign disclosed in chinese patent publication No. CN203130413U can realize the illumination function, the functionality is single.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air pump compact structure, appearance are pleasing to the eye.

In order to achieve the above purpose, the utility model provides a following technical scheme: an air pump, comprising:

a motor; the gas compression assembly is driven by the motor and is used for compressing and discharging air;

a main housing accommodating the motor and the gas compression assembly and having an installation part for installing a DC power supply;

a support leg for supporting the main body case in a state where a lower surface thereof is arranged on a placement surface;

a holding part connected with the host casing and extending in parallel with the lower surface of the supporting leg;

the operating part is arranged at the top of the main machine shell and is used for being operated by a user to adjust the working state of the air pump;

the main machine shell is also provided with a light assembly; the light assembly is positioned below the operation part and is arranged close to the operation part; the light assembly has at least two working modes, and the orthographic projection of the operating part is at least partially overlapped with the orthographic projection of the light assembly.

Further, the orthographic projection of the light assembly falls within the orthographic projection of the operation part. Further, an axis of an output shaft of the motor is disposed substantially parallel to the grip portion.

Further, along the extending direction of the holding part, the motor is positioned between the mounting part and the gas compression assembly.

Further, the motor, the gas compressing unit, and the mounting portion are disposed below the grip portion.

Furthermore, the main machine shell is provided with a socket for providing the compressed gas discharged by the gas compression assembly to the equipment to be inflated, and the socket and the mounting part are arranged on opposite sides relative to the holding part in the extending direction of the holding part.

Further, the air pump further comprises a hose, one end of the hose is connected with the air compression assembly through the socket, and the protruding direction of the hose from the socket is approximately parallel to the extending direction of the holding part.

Furthermore, the light assembly is arranged close to the interface and is positioned between the operation part and the interface.

Further, an orthographic projection of the center of gravity of the air pump falls within an orthographic projection of the motor.

Further, the air pump is configured to have: the device comprises a first working mode for displaying white and weak light, a second working mode for displaying white and strong light and a third working mode for displaying red light for realizing warning effect.

The beneficial effects of the utility model reside in that: this application can realize the light subassembly of two at least modes through setting up to make this air pump have different functions, and set up light subassembly in the operation portion, and make the orthographic projection of light subassembly and the orthographic projection of operation portion at least part overlap, so that air pump overall structure is compact, occupation space is little, pleasing to the eye degree height.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic view of an overall structure of an air pump according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the air pump shown in FIG. 1;

FIG. 3 is a top view of the air pump shown in FIG. 1;

fig. 4 is a front view of the air pump shown in fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1-4, the air pump 100 according to a preferred embodiment of the present invention is shown. The air pump 100 is generally used in inflation, inflation and other situations to deliver the air generated by the air pump 100 to the device to be inflated. The air pump 100 may be divided into an electric air pump using electric power as power, a manual air pump using hand power as power, and a foot air pump using foot power as power according to the power source. Wherein, the manual air pump generates air pressure by continuously compressing air with hand force, and is mainly used for filling air balls or small filled pneumatic toys; the foot-operated air pump continuously compresses air through foot force to generate air pressure, and is mainly used for inflating bicycles and filling air balls or pneumatic toys and the like. In this embodiment, the power source is a motor, and the air pump 100 is an electric air pump, which can be used in situations such as inflation, sewage treatment, electroplating and air blowing, biogas tank aeration, tunnel ventilation, etc., and the application of the air pump 100 is not specifically limited.

Referring to fig. 1 and 2, since the air pump 100 is configured on the premise of being used in a state of being mounted on a mounting surface (for example, a floor surface, a ceiling surface, or the like), for convenience of description of the air pump 100, the vertical direction of the air pump 100 is defined based on a posture in which the air pump 100 is mounted on a planar mounting surface, the direction orthogonal to the vertical direction is defined as the front-rear direction of the air pump 100, the direction in which the air pump 100 discharges air is defined as the front, the direction opposite to the front is the rear, and the directions orthogonal to the vertical direction and the front-rear direction are defined as the left-right direction.

The air pump 100 of the present application includes a motor 3, an air compressing assembly 2, a main housing 119 for accommodating the motor 3 and the air compressing assembly 2, a supporting leg 9 for supporting the main housing 119, and a holding portion 115 connected to the main housing 119. The main body case 119 is further provided with an operation unit 5, an installation unit (not shown) for installing a dc power supply, and a lamp unit (not shown). The light assembly is located below the operation part 5, the orthographic projection of the operation part 5 is at least partially overlapped with the orthographic projection of the light assembly, and in the embodiment, the orthographic projection of the light assembly is entirely within the orthographic projection of the operation part 5.

The main body housing 119 includes a base 1191, a front extension 1192, and a rear extension 1193, and specifically, the base 1191 is a portion of the main body housing 119 extending in the front-rear direction. The front extension 1192 and the rear extension 1193 are connected to the front end and the rear end of the base 1191, respectively, and extend in the vertical direction. The front side extension 1192 and the rear side extension 1193 protrude upward from the base 1191. The front end and the rear end of the grip portion 115 are connected to the upper ends of the front extension 1192 and the rear extension 1193, respectively. Thus, the main body case 119 and the grip portion 115 are formed in a substantially D-shaped ring shape as shown in fig. 1.

The main housing 119, the support legs 9 and the grip portion 115 together form the housing 1 of the air pump 100. In this embodiment, shell 1 is formed by two half structures butt joints, and two half structures are the left and right sides structure respectively, through this kind of setting, the die sinking of being convenient for make overall structure more simple. The housing 1 has oppositely disposed front and

rear faces

11, 12, oppositely disposed upper and

lower faces

14, 15 and oppositely disposed sides 13. The housing 1 is surrounded by a front surface 11, a rear surface 12, an upper surface 14, a lower surface 15 and two side surfaces 13 to form a housing chamber (not numbered) for housing the cylinder 21 and the motor 3. Specifically, the cylinder 21 is disposed in the front side extension 1192, and the motor 3 is disposed in the base 1191. A grip cavity 112 is formed between the main body casing 119 and the grip portion 115, the grip cavity 112 is formed by penetrating both side surfaces 13, and the hand of the operator is inserted into the grip cavity 112 from the side surface 13 of the casing 1. The grip 115 is located above the main housing 119, and in particular, the grip 115 is located above the grip cavity 112 and extends parallel to the lower surface 15.

The main machine housing 119 also has a socket 111 for guiding the compressed air discharged from the gas compression assembly 2 to the device to be inflated. The socket 111 and the mounting portion are provided on opposite sides of the grip portion 115 in the extending direction of the grip portion. In a possible embodiment, the air pump 100 further comprises a working head 7 connected to the air compression assembly 2 and facing the device to be inflated. One end of the working head 7 is inserted into the insertion port 111 to be connected to the cylinder 21. The central axis X of the socket 111 passes through the gripping chamber 112. In this embodiment, the holding portion 115 is substantially parallel to the central axis X of the socket 111 for easy operation and taking. The light subassembly is close to interface 111 and sets up, and this light subassembly is located between operation portion 5 and interface 111, and is specific, the light subassembly is located the top of the axis X of interface 111, is located the below of operation portion 5, and the portion of gripping 115 is located the rear of light subassembly. In this embodiment, a mounting groove 113 is further formed on the front surface 11 in a concave manner, the opening direction of the mounting groove 113 is the same as the opening direction of the socket 111, and the light assembly is embedded in the mounting groove 113. The light assembly comprises a lamp housing (not shown) and a plurality of lamp beads arranged in the lamp housing. The lamp housing is flush or substantially flush with the front surface 11 in the vertical direction, so that the air pump 100 is more attractive and compact. The lamp shell can protect the lamp beads and prolong the service life of the lighting assembly. In this embodiment, the lamp beads include a first type of lamp beads (not shown) capable of emitting white light and a second type of lamp beads (not shown) capable of emitting red light, and the lamp beads can be selectively turned on partially.

Referring to fig. 2 and 3, the front extension 1192 of the main housing 119 is provided with a control switch 51 for controlling the on/off of the light assembly. Control switch 51 sets up on one of them side 13, and is concrete, and control switch 51 is located between portion 115 and the light subassembly of gripping, and control switch 51 is located the one-hand operation within range when the operator grips portion 115 to make the operator can the one-hand operation when using control switch 51 control light subassembly, it is more convenient laborsaving, improve the comfort level.

The control switch 51 is in signal connection with the light assembly such that the light assembly has different display states, wherein the different display states include: and displaying white weak light, white strong light and red light for realizing warning, and turning off the light component. Different states are realized by the opening and closing of the first type of lamp beads and the second type of lamp beads. Here, the light module is defined to display a first working mode of displaying white and weak light, a second working mode of displaying white and strong light, a third working mode of displaying red light, and a fourth working mode of turning off the light module. When the air pump 100 works in the environment with poor light conditions such as night, the operator can adjust the lighting intensity of the first working mode or the second working mode to select the light assembly according to the difference of the light intensity, and when an emergency occurs, the operator can adjust the light assembly to the third working mode to enable the light assembly to display red light, so that warning or distress warning is performed.

In this embodiment, the control switch 51 includes a trigger button 511 of a pressing type and a first controller (not shown) for receiving a trigger signal of the trigger button 511, and the first controller is located in the mounting groove 113. In this embodiment, the control method between the trigger button 511 and the different states is as follows: when the trigger button 511 is pressed once, the first controller controls the light assembly to display the white light and the dim light; when the trigger button 511 is pressed twice, the first controller controls the light assembly to display white and strong light; when the trigger button 511 is pressed three times, the first controller controls the light assembly to display red light; when the trigger button 511 is pressed four times, the first controller controls the lamp beads of the light assembly to be completely turned off, namely, the light assembly is turned off.

Referring to fig. 3, the operation portion 5 includes a display screen 52 for displaying the air output data of the working head 7, a power-on switch 53 and a power-on/off switch for controlling the motor 3, and a second controller (not shown) for controlling the display of the display screen and the rotation speed of the motor. It should be noted that, in this embodiment, the light assembly is controlled by the control switch 51 alone, specifically: the light assembly and the control switch 51 form a first circuit. The control switch 51 controls the on/off of the first circuit. The motor 3, the display screen 52, the second controller, the power-on switch 53 and the on-off switch 54 form a second loop. The second loop and the first loop are non-series circuits, the power-on switch 53 controls the on-off of the second loop, and the on-off switch 54 is used for controlling the operation of the motor 3.

The power-on switch 53 and the on-off switch 54 are integrated on the display screen 52, so that the air pump 100 is compact in structure and space-saving. The display 52 also incorporates operation keys ("+", "-" in fig. 3) for setting the output target air pressure value of the air cylinder 21. The housing 1 has an upper surface 14 and the display screen 52 is embedded in the upper surface 14 and positioned above the light assembly, the arrangement being such that: on one hand, when the air pump 100 is used at night or in a dark environment, the display screen 52 can be clearly seen by an operator under the action of the light assembly, and then the output value or the target value of the air cylinder 21 is adjusted and set, so as to prevent the operator from being injured by explosion and the like caused by unclear air pressure value under the dark condition; on the other hand, the display screen 52 is embedded in the upper surface 14, so that the display screen 52 occupies less space of the air pump 100 as a whole and has a more compact structure. In other embodiments, the display screen 52 may be disposed at other positions, which are not limited herein, according to the actual situation.

The gas compression assembly 2 comprises a cylinder 21 and a piston; the piston reciprocates in the cylinder 21 under the driving of the motor 3 to generate compressed air, and the compressed air is discharged through the working head 7. The air pump 100 further includes a transmission assembly 8 disposed between the motor 3 and the air cylinder 21, specifically: the transmission assembly 8 connects the piston rod with the output shaft 31 of the motor 3, and the transmission assembly 8 converts the rotary motion of the output shaft 31 of the motor 3 into linear motion to transmit to the piston rod. The transmission assembly 8 includes a transmission member 81 and a crank-slider mechanism (not shown), in this embodiment, the transmission member 81 is a gear set 81, and the gear set 81 includes a driving wheel 811 and a driven wheel 812. A drive pulley 811 of the gear train 81 is mounted on the output shaft 31 of the motor 3. In other embodiments, the transmission member 81 can be configured to be other, such as rack transmission, chain transmission, link transmission, cam transmission, belt transmission, etc., and is not limited herein. The crank in the crank-slider mechanism is connected with the driven wheel 812 in the gear set 81, the crank is driven to rotate circularly through the driven wheel 812, and the piston rod is arranged on the slider in the crank-slider mechanism and is pushed to do reciprocating linear motion through the slider. When the gear set 81 drives the piston rod to move towards the direction close to the working head 7, the volume of the gas compressed and gathered in the cylinder 21 is reduced, the cylinder 21 is communicated with the working head 7, and the gas generated by the cylinder 21 is conveyed to the equipment to be inflated along the communicating piece 71.

In order to ensure that the stability of the whole air pump 100 is better and the air pump can be stably placed on the ground during working, the motor 3 and the air cylinder 2 are positioned below the central axis X of the socket 111. In order to make the overall structure of the air pump more compact, in this embodiment, the piston rod of the air cylinder 21 is perpendicular to the central axis X of the socket, and an air cylinder mounting area 114 is formed in the housing 1, and the air cylinder mounting area 114 is located between the front surface 11 and the holding cavity 112 and is arranged below the front surface. Output shaft 31 of motor 3 is parallel with the axis X of interface, along the extending direction of portion 115 that grips, motor 3 is located between installation department and the gas compression subassembly 2, it is specific, motor 3 is close to cylinder 21 and arranges, and motor 3, gas compression subassembly 2, and the installation department is closer to the below configuration than portion 115 that grips, the focus of air pump 100 falls in motor 3, in the direction of height of air pump 100, the orthographic projection of motor 3 is most to fall in the orthographic projection of portion 115 that grips, so set up, work or when carrying when air pump 100, the holistic focus evenly distributed of air pump 100, and then make the operator operate or when carrying laborsaving more, it is comfortable.

The air pump 100 is powered by a dc power source 6, in this embodiment, the dc power source 6 is a battery pack 61 mounted on the mounting portion, so that the air pump 100 is not limited by distance during use. The first loop and the second loop are both powered by the battery pack 61. The battery pack 61 and the mounting portion are detachably connected to facilitate replacement of the battery pack 61. In order to facilitate the installation of the battery pack 61 by the operator using the air pump 100, the insertion and extraction direction of the battery pack 61 on the air pump 100 is perpendicular to the central axis X of the insertion port. In other embodiments, the inserting and pulling direction of the battery pack 61 mounted on the air pump 100 can be set to other directions, which is not specifically limited herein and is determined according to actual situations.

The working head 7 includes a communication piece 71 for inflating the air supply pump 100 and a corresponding fitting joint 72, one end of the communication piece 71 is inserted into the insertion port 111 to be sealingly connected with the cylinder 21, the other end of the communication piece 71 is connected with the fitting joint 72 to inflate the device to be inflated, and a protruding direction of the communication piece 71 from the insertion port 111 is substantially parallel to an extending direction of the grip portion 115. In order to fix the working head 7 on the interface 111 more firmly, the working head 7 further comprises a rubber ring 73, the rubber ring 73 is detachably mounted on the interface 111, and in other embodiments, the rubber ring 73 may be integrally formed with the interface 111. In order to enable the communication member 71 to rotate freely when the air pump 100 is inflated, so that an operator can operate the air pump conveniently, in this embodiment, the communication member 71 is configured as a hose 71, and in other embodiments, the communication member 71 may also be configured as an air duct made of other materials, which is not particularly limited herein and is determined according to actual situations. Referring to fig. 4, the front surface 11 of the housing 1 is provided with a receiving groove 116, and the receiving groove 116 is located below the central axis X of the socket 111. When the air pump 100 is not in use, the fitting connector 72 of the working head 7 can be received in the receiving slot 116, and the fitting connector 72 can be a ball needle for inflating basketball, volleyball, and football, or other common accessories such as a taper adapter and a French valve adapter for inflating a balloon and a hovercraft, so as to facilitate the operator. It should be noted that, in order to make the air pump 100 compact and occupy a small space, the receiving groove 116 is formed to be recessed inward from the front surface 11.

Referring to fig. 1, at least one wire clip 91 is disposed on a side surface 13 of one of two side surfaces 13 of a housing 1, in order to better clamp and fix an unused hose 71 to be wound on the wire clip 91, in this embodiment, two wire clips 91 are disposed, the two wire clips 91 are disposed at two ends of the side surface 13 and have a certain distance, and the wire clips 91 and the housing 1 are integrally formed, in this embodiment, the wire clips 91 and the hose 71 are in interference fit, in other embodiments, the wire clips 91 can be further configured to be capable of finely adjusting the accommodating range thereof, so as to prevent the wire clips 91 from being unstably clamped when the diameter of the hose 71 is too large, in other embodiments, the number of the wire clips 91 is not specifically limited, and the wire clips 91 can also be separately disposed from the housing 1, which is not specifically limited and is determined according to actual situations.

The shell 1 is provided with an air inlet 117 and an air outlet 118 which are communicated with the battery pack 61 and the air cylinder mounting area 114, the air inlet 117 and the air outlet 118 form an air flow channel for cooling the motor 3 and the battery pack 61, the air flow in the air flow channel enters from the air inlet 117 and flows out from the air outlet 118, and therefore the structure of the air flow channel can be effectively utilized, and the air flow entering from the air inlet 117 can directly flow through the surface of the motor 3 to accelerate heat dissipation. The air inlet 117 and the air outlet 118 are disposed on the side 13 of the air pump 100 to prevent the air flow in the housing 1 from blowing toward the operator, thereby improving the comfort of the operator.

When the air pump 100 is placed on the road surface and is in a working state, the motor 3 can vibrate or shake during operation, so that the air pump 100 is not stably placed on the road surface and is easy to overturn, in order to enable the air pump 100 to be stably placed on the ground, the air pump 100 further comprises a supporting leg 9 formed by downward protruding from the lower surface 15, the supporting leg 9 has a damping effect, and the supporting leg 9 is formed into a rectangular box. In order to make the overall layout of the air pump 100 more compact, the driving wheel 811 is disposed above the driven wheel 812, and the driven wheel 812 is partially disposed in the support feet 9. In the present embodiment, two support legs 9 are provided, and the two support legs 9 respectively protrude downward from the lower end portions of the front-side extension and the rear-side extension. In other embodiments, the number of the supporting feet 9 can be set to be other, and is not limited specifically herein, according to the actual situation.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An air pump, comprising:

a motor;

the gas compression assembly is driven by the motor and is used for compressing and discharging air;

the portable computer is characterized in that the main machine shell is also provided with a light assembly; the light assembly is positioned below the operation part and is arranged close to the operation part; the light assembly has at least two working modes, and the orthographic projection of the operating part is at least partially overlapped with the orthographic projection of the light assembly.

2. The air pump of claim 1, wherein an orthographic projection of the light assembly falls within an orthographic projection of the operating portion.

3. An air pump according to claim 1, wherein the axis of the output shaft of the motor is disposed substantially parallel to the grip.

4. The air pump of claim 1, wherein the motor is located between the mounting portion and the air compression assembly along a direction of extension of the grip portion.

5. The air pump of claim 1, wherein the motor, the air compressing assembly, and the mounting portion are disposed below the grip portion.

6. The air pump of claim 1, wherein the main housing defines a socket for supplying the compressed air discharged from the air compressing assembly to the device to be inflated, and the socket and the mounting portion are disposed on opposite sides of the grip portion in an extending direction of the grip portion.

7. An air pump according to claim 6, further comprising a hose, one end of which is connected to the air compressing assembly via the socket, and a protruding direction of the hose from the socket is substantially parallel to an extending direction of the grip.

8. The air pump of claim 6, wherein the light assembly is disposed adjacent to the interface between the operating portion and the interface.

9. An air pump according to claim 1, wherein an orthographic projection of the center of gravity of the air pump falls within an orthographic projection of the motor.

10. An air pump as claimed in claim 1, wherein the air pump is configured with: the device comprises a first working mode for displaying white and weak light, a second working mode for displaying white and strong light and a third working mode for displaying red light for realizing warning effect.