Air pump

Abstract

The utility model relates to an air pump, which comprises a shell provided with an air inlet and an air outlet; the fan is arranged in the shell, the fan comprises a base plate and a plurality of fan blades, the fan blades are arranged on the side, facing the air inlet, of the base plate, and the air outlet is formed in the peripheral side of the fan; the fan comprises an axis area located in the middle, the fan blades extend towards the peripheral side of the fan along the axis area, and in the axial direction of the fan, the height of the portions, protruding out of the base plate, of the fan blades is reduced from the axis area towards the peripheral side of the fan. Therefore, when the fan rotates, air is sent out towards the peripheral side of the fan, the fan blades with the lower height can reduce blocking of the air so as to reduce blocking of airflow as much as possible, and therefore the air can be fully sent to the air outlets in the peripheral side of the fan, and the airflow efficiency of the air pump is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical appliances, especially relates to a gas pump. BACKGROUND

[0002] Portable gas pumps are particularly suitable for carrying in camping or hiking due to their small size. They can quickly inflate air cushions, air beds, air boats and other outdoor equipment.

[0003] However, some current portable gas pumps face a common problem in design. In order to reduce size and weight, many products have compromised in structure. This compromise often leads to reduced inflation or air extraction efficiency of the gas pump. While miniaturized design improves the portability of the gas pump, it also limits the power and efficiency of the gas pump, making it less efficient to use. SUMMARY

[0004] The utility model provides a kind of gas pump, which can improve the problem of low efficiency of existing gas pump.

[0005] The utility model provides a kind of gas pump, which includes: shell, is equipped with air inlet and air outlet;Fan is in the shell, the fan includes substrate and multiple fan blades, multiple fan blades are equipped on the substrate side towards the air inlet, the air outlet is equipped on the circumferential side of the fan;Wherein, the fan includes the axial region in the middle, the fan blade is arranged along the axial region towards the circumferential side of the fan, and in the axial direction of the fan, the height of the fan blade protruding the substrate is reduced from the axial region towards the circumferential side of the fan.

[0006] Optionally, the fan blade includes the edge side away from the axial region;In the axial direction of the fan, the height of the air outlet is greater than or equal to the height of the edge side.

[0007] Optionally, the gas pump further includes a top cover, the top cover is arranged on the side of the shell provided with the air inlet, and the top cover is provided with an opening communicated with the air inlet;The gas pump further includes a blocking member and a magnetic member connected with each other, the blocking member is arranged between the top cover and the fan, and the blocking member is provided with a through hole communicated with the opening;The magnetic member is located on the side of the blocking member towards the top cover, and the magnetic member is magnetically connected with the top cover;The blocking member is connected to the shell.

[0008] Optionally, the gas pump further includes a motor and a battery pack;The motor and the battery pack are located on the side of the substrate away from the air inlet, and the output end of the motor is connected with the fan.

[0009] Optionally, the battery pack comprises a plurality of batteries, and the plurality of batteries are evenly distributed around the circumferential side of the motor.

[0010] Optionally, the shell comprises a housing and a mounting frame connected with each other, the mounting frame is provided with a fixing cavity, the motor is located in the fixing cavity, and an inner wall of the fixing cavity abuts against the motor.

[0011] Optionally, the mounting frame further comprises a plurality of partition plates, and the partition plates are located between two adjacent batteries.

[0012] Optionally, the PCB is connected to the shell, and the PCB is located on a side of the battery pack away from the air inlet.

[0013] Optionally, the air pump further comprises a lighting lamp and a transparent bottom cover, the lighting lamp is arranged on the PCB, and the transparent bottom cover is connected with the shell and located on a side of the lighting lamp.

[0014] Optionally, the air pump further comprises a carrying member, and the carrying member is rotationally connected with the shell.

[0015] The air pump comprises a shell and a fan, wherein the shell is provided with an air inlet and an air outlet, the fan is arranged in the shell, the fan comprises a base plate and a plurality of fan blades, the plurality of fan blades are arranged on a side of the base plate facing the air inlet, the air outlet is arranged on a circumferential side of the fan, and the fan comprises a central region. According to the structure, when the fan rotates, air is sent out from the air inlet to the air outlet. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description.

[0017] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0018] Figure 1is a schematic diagram showing the overall structure of a gas pump related to the present application.

[0019] Figure 2 is another schematic diagram showing the overall structure of a gas pump related to the present application.

[0020] Figure 3 is a sectional view of a gas pump related to the present application.

[0021] Figure 4 is a partial exploded view of a gas pump related to the present application.

[0022] Figure 5 is another partial exploded view of a gas pump related to the present application.

[0023] Reference signs: 1, housing; 11, air inlet; 12, air outlet; 13, outer shell; 14, mounting bracket; 141, fixing cavity; 142, partition plate; 2, fan; 21, base plate; 22, fan blade; 221, edge side; 3, top cover; 4, blocking piece; 5, magnetic piece; 6, motor; 7, battery; 8, PCB board; 9, illuminating lamp; 10, transparent bottom cover; 101, hand-held piece; 102, control button. DETAILED DESCRIPTION

[0024] Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. In the following description, the same parts are given the same reference numerals, and overlapping descriptions will be omitted. In addition, the drawings are merely schematic diagrams, and the proportions of the sizes of the components with respect to each other or the shapes of the components, etc. can be different from reality. It should be noted that all directional references, such as up, down, left, right, front, back, etc., used herein are in connection with the orientation of the device at a given moment in time. When the device is turned over, the relative designations of these directions will change accordingly.

[0025] It should also be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements can be present.

[0026] Reference Figures 1 to 5The application provides a kind of air pump, it includes shell 1 and fan 2.Shell 1 is equipped with air inlet 11 and air outlet 12;Fan 2, be located in shell 1, fan 2 includes substrate 21 and multiple fan blades 22, multiple fan blades 22 are located in substrate 21 towards air inlet 11 side, air outlet 12 is located in the circumferential side of fan 2;Wherein, fan 2 includes the axial region in the middle, fan blade 22 is arranged along axial region towards the circumferential side of fan 2, and in the axial direction of fan 2, the height of fan blade 22 protruding substrate 21 is reduced from axial region towards the circumferential side of fan 2.

[0027] According to the above structure, when fan 2 rotates, air is sent from air inlet 11 to air outlet 12.Because fan blade 22 is arranged along axial region towards the circumferential side of fan 2, and in the axial direction of fan 2, the height of fan blade 22 protruding substrate 21 is reduced from axial region towards the circumferential side of fan 2, thereby, when air is sent towards the circumferential side of fan 2, the fan blade 22 with lower height can reduce the obstruction to air, to reduce the resistance of airflow as much as possible, so that air can be fully sent to the air outlet 12 located on the circumferential side of fan 2, to improve the airflow efficiency of the air pump.

[0028] Specifically, high-speed operation of fan 2 can drive the air in shell 1 to generate centrifugal force and be thrown to the circumferential side of fan 2.Air outlet 12 is located on the circumferential side of fan 2, so the air is directly thrown out of shell 1 through air outlet 12.Then by reducing the height of fan blade 22 located on the circumferential side of fan 2, air can be more smoothly sent out.Therefore, by using the air pump provided by the application, the path of airflow removal is smooth, and the airflow delivery efficiency is high.

[0029] Reference Figure 4 In some embodiments, fan blade 22 includes edge side 221 away from axial region;In the axial direction of fan 2, the height of air outlet 12 is greater than or equal to the height of edge side 221.Therefore, the opening of air outlet 12 is large enough, so that the airflow can be fully sent out.

[0030] In some embodiments, the air pump further includes top cover 3, top cover 3 is located on the side of shell 1 provided with air inlet 11, and top cover 3 is provided with an opening communicating with air inlet 11;The air pump further includes blocking piece 4 and magnetic piece 5 connected with each other, blocking piece 4 is located between top cover 3 and fan 2, and blocking piece 4 is provided with through hole communicating with the opening;Magnetic piece 5 is located on the side of blocking piece 4 towards top cover 3, and magnetic piece 5 is magnetically connected with top cover 3;Blocking piece 4 is connected to shell 1.Therefore, top cover 3 can be installed by magnetic attraction, which is more convenient and fast.Specifically, refer to Figure 4, magnetic pieces 5 can be distributed in the area close to the circumference. Since the fan blade 22 has a lower height in the part close to the circumference of the fan 2, there is more space in the part of the fan blade 22 towards the blocking part, and the distribution of the magnetic pieces 5 can make full use of the space, so that the overall structure of the air pump is more compact.

[0031] In some embodiments, the air pump further comprises a motor 6 and a battery pack; the motor 6 and the battery pack are located on the side of the base plate 21 away from the air inlet 11, and the output end of the motor 6 is connected with the fan 2. Thus, the motor 6 and the battery 7 make full use of the space at the bottom of the fan 2, so that the internal structure of the air pump is more compact and reasonable.

[0032] It should be noted that the fan 2 is used for the connection area of the output shaft of the motor 6, that is, the axial center area defined in the present application, and the axial center area can also be slightly larger, but always centered on the output shaft of the motor 6. It can be understood that the axial direction of the fan 2 defined in the present application is consistent with the extension direction of the output shaft of the motor 6.

[0033] In some embodiments, the battery pack comprises a plurality of batteries 7, and the plurality of batteries 7 are uniformly distributed around the circumference of the motor 6. Thus, the weight distribution inside the air pump is uniform, which is beneficial to the stable placement of the air pump.

[0034] In some embodiments, the shell 1 comprises an outer shell 13 and a mounting frame 14 connected with each other; the mounting frame 14 is provided with a fixing cavity 141, the motor 6 is located in the fixing cavity 141, and the inner wall of the fixing cavity 141 abuts against the motor 6. Thus, the fixing cavity 141 of the mounting frame 14 can limit the motor 6. Specifically, the motor 6 will vibrate to a certain extent during operation, and the inner wall of the fixing cavity 141 abuts against the outer wall of the motor 6, thereby reducing the possibility of displacement of the motor 6 due to vibration.

[0035] Referring to Figure 5 In some embodiments, the mounting frame 14 further comprises a plurality of partition plates 142, and the partition plates 142 are located between adjacent two batteries 7. Specifically, the adjacent two partition plates 142 can clamp and fix the batteries 7. Moreover, the partition plates 8 abut against part of the area of the battery 7, so that there is a gap between the adjacent two batteries 7, and the gap can form a heat dissipation space, which is beneficial to heat dissipation of the battery 7.

[0036] Referring to Figure 5 In some embodiments, the air pump comprises a PCB 8, the PCB 8 is connected to the shell 1, and the PCB 8 is located on the side of the battery pack away from the air inlet. Specifically, it can be understood that the PCB 8 is located at the bottom of the battery pack and the motor 6, and the PCB 8 is closer to the battery pack and the motor 6, which is convenient for wiring connection, so that the internal structure of the air pump is also more reasonable and orderly.

[0037] In some embodiments, the air pump further comprises a lighting lamp 9 and a transparent bottom cover 10; the lighting lamp 9 is arranged on the PCB 8; the transparent bottom cover 10 is connected with the shell 1 and is located at one side of the lighting lamp 9. In this way, the light of the lighting lamp 9 can pass through the transparent bottom cover 10 and be emitted out of the transparent bottom cover 10. The arrangement of the lighting lamp 9 can provide lighting for the user in an emergency and is suitable for use as a night lighting tool. In addition, by integrating the lighting lamp 9 on the PCB 8, more space can be saved, the interior of the air pump is more compact, and the air pump is more lightweight. Specifically, the lighting lamp 9 can be an LED lamp.

[0038] With reference to Figure 5 In some examples, the transparent bottom cover 10 can be provided with a control button 102, and the user can control the air pump to work by pressing the control button 102.

[0039] In some embodiments, the air pump further comprises a hand-held member 101, which is rotationally connected with the shell 1. In this way, the arrangement of the hand-held member 101 can facilitate the user to use the air pump outdoors, facilitate hand-carrying, or hang the air pump on an external hook or the like.

[0040] According to the above structure, when the fan 2 rotates, the wind is sent out from the air inlet 11 to the air outlet 12. Since the fan blades 22 are arranged to extend along the axial region to the peripheral side of the fan 2, and in the axial direction of the fan 2, the height of the fan blades 22 protruding from the base plate 21 decreases from the axial region to the peripheral side of the fan 2, thus when the wind is sent to the peripheral side of the fan 2, the fan blades 22 with lower height can reduce the obstruction to the wind, so as to reduce the resistance of the airflow as much as possible, so that the wind can be fully sent to the air outlet 12 located at the peripheral side of the fan 2, and the airflow efficiency of the air pump is improved.

[0041] In the description of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0042] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0043] The embodiments, implementation manners and related technical features of the present application can be combined or replaced with each other without conflict.

[0044] The above merely is the preferred embodiment of the present application, and does not limit the present application in any form, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present application without departing from the technical solution content of the present application still falls within the scope of the technical solution of the present application.

[0045] Although the present application has been specifically described above in combination with the drawings and embodiments, it should be understood that the above description does not limit the present application in any form. Those skilled in the art can deform and change the present application according to needs without deviating from the essential spirit and scope of the present application, and these deformations and changes all fall within the scope of the present application.

Claims

1. A gas pump characterized by, The air pump comprises: a housing provided with an air inlet and an air outlet; a fan arranged in the housing, the fan comprising a base plate and a plurality of fan blades, the plurality of fan blades being arranged on one side of the base plate facing the air inlet, and the air outlet being arranged on the peripheral side of the fan; wherein the fan comprises a central axial region, the fan blades extend along the central axial region and are arranged towards the peripheral side of the fan, and in the axial direction of the fan, the height of the fan blades protruding from the base plate decreases from the central axial region towards the peripheral side of the fan.

2. The gas pump of claim 1, wherein, The fan blades comprise an edge side away from the central axial region; In the axial direction of the fan, the height of the air outlet is greater than or equal to the height of the edge side.

3. The gas pump of claim 1, wherein, The air pump further comprises a top cover arranged on the side of the housing provided with the air inlet, and the top cover is provided with an opening in communication with the air inlet; The air pump further comprises a blocking member and a magnetic member connected to each other, the blocking member is arranged between the top cover and the fan, and the blocking member is provided with a through hole in communication with the opening; The magnetic member is located on the side of the blocking member facing the top cover, and the magnetic member is magnetically connected to the top cover; The blocking member is connected to the housing.

4. The gas pump of claim 1, wherein, The air pump further comprises a motor and a battery pack; The motor and the battery pack are located on the side of the base plate away from the air inlet, and the output end of the motor is connected to the fan.

5. The gas pump of claim 4, wherein, The battery pack comprises a plurality of batteries, and the plurality of batteries are uniformly distributed around the peripheral side of the motor.

6. The gas pump of claim 5, wherein, The housing comprises an outer shell and a mounting bracket connected to each other; The mounting bracket is provided with a fixing cavity, the motor is located in the fixing cavity, and the inner wall of the fixing cavity abuts against the motor.

7. The gas pump of claim 6, wherein, The mounting bracket further comprises a plurality of partition plates, and the partition plates are located between adjacent two batteries.

8. The gas pump of claim 4, wherein, The air pump comprises a PCB, the PCB is connected to the housing, and the PCB is located on the side of the battery pack away from the air inlet.

9. The gas pump of claim 8, wherein, The air pump further comprises a lighting lamp and a transparent bottom cover; The lighting lamp is arranged on the PCB; The transparent bottom cover is connected to the housing, and the transparent bottom cover is located on the side of the lighting lamp.

10. The gas pump of any of claims 1-9, wherein, The air pump further comprises a carrying member, and the carrying member is rotatably connected to the housing.

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