Inflator pump

Abstract

The utility model provides an inflator pump. The inflator pump comprises a shell, a power source, a driving device and a pump body. The power source is electrically connected with the driving device, a first containing groove, a second containing groove and a third containing groove are formed in the shell, the first containing groove and the second containing groove are communicated with each other and distributed in the circumferential direction of the third containing groove, and blocking parts are arranged between the third containing groove and the first containing groove and between the third containing groove and the second containing groove respectively. The pump body is located in the first containing groove, the driving device is located in the second containing groove, and the power source is located in the third containing groove. According to the inflator pump, the structural layout of the driving device, the pump body and the power source is optimized, heat accumulation can be avoided, mutual interference of heat between the inflation assembly and the power source can be avoided, and then the heat dissipation function of the inflator pump is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle accessories, in particular to an air pump. BACKGROUND

[0002] An air pump is a device used to press air or other gas into the interior of an object. Its main function is to deliver gas to objects that need to be inflated, such as tires, air mattresses, balloons, etc., by compressing air.

[0003] In the prior art, an electric air pump is a common air pump that is mainly driven by a motor or a driving device. Therefore, such an air pump is often equipped with a power supply. However, during the inflation process of the air pump, the driving device works, the mechanical friction, and the compression of air can cause the air pump to heat up. The power supply also generates heat during power supply. Therefore, the air pump is prone to heat up during use, and the heat generated by the power supply and the air pump is prone to accumulate and interact, thereby affecting the user's experience.

[0004] Therefore, there is a need for a solution to at least one of the above problems. Invention content

[0005] In view of the defects in the prior art, the present application proposes an air pump that optimizes the internal structure layout and enhances the heat dissipation function of the air pump.

[0006] The technical scheme adopted by the present application to solve at least one of the above technical problems is:

[0007] An air pump, characterized in that it comprises a housing, a power supply, an inflation assembly, a driving device, and a pump body.

[0008] The power supply is electrically connected to the driving device. The housing is provided with a first receiving groove, a second receiving groove, and a third receiving groove. The first receiving groove and the second receiving groove are in communication with each other. The first receiving groove and the second receiving groove are distributed along the circumferential direction of the third receiving groove. The third receiving groove is provided with a barrier between the first receiving groove and the second receiving groove, respectively.

[0009] The pump body is located in the first receiving groove, the driving device is located in the second receiving groove, and the power supply is located in the third receiving groove.

[0010] In one specific embodiment, the first receiving groove is provided with an air pressure sensor.

[0011] The pump body is also connected to an air pressure detection port, which is arranged towards the air pressure sensor.

[0012] The first accommodating groove has a first region and a second region, the first region is located away from the third accommodating groove, and the second region is located close to the third accommodating groove;

[0013] The pump body is located in the first region, and the air pressure sensor and the air pressure detection port are located in the second region.

[0014] In one specific embodiment, the first accommodating groove and the second accommodating groove together present an L-shaped,

[0015] The driving device is arranged along the width direction of the power supply, and the pump body is arranged along the length direction of the power supply.

[0016] In one specific embodiment, the shell surface is also distributed with heat dissipation holes, all the heat dissipation holes are distributed in a row-column form to form an N×M heat dissipation hole array, where N and M are both positive integers not less than 1.

[0017] In one specific embodiment, a heat dissipation fan is further arranged, the heat dissipation fan is coaxially connected with the output shaft of the driving device, and the air outlet direction or the air inlet direction of the heat dissipation fan is towards the heat dissipation holes.

[0018] In one specific embodiment, a support and a main control board are further arranged, the main control board is electrically connected with the driving device and the power supply; one side of the support is used to support the main control board, and the other side of the support is used to connect the power supply and the inflation assembly.

[0019] In one specific embodiment, the third accommodating groove is sequentially provided at the bottom with a plurality of supporting portions for supporting the power supply, so that the power supply is erected on the shell.

[0020] In one specific embodiment, the second accommodating groove is provided with a mounting portion for mounting the driving device, and the mounting portion is matched with the shape of the driving device.

[0021] In one specific embodiment, a damping member is arranged between the mounting portion and the driving device, one side of the damping member is connected with the mounting portion, and the other end of the damping member is connected with the driving device.

[0022] In one specific embodiment, the inflation assembly includes the driving device and the pump body;

[0023] The inflation assembly further includes a gear box, the pump body and the driving device are connected through the gear box;

[0024] The shell is provided with an inflation port, the inflation port is communicated with the pump body, and the shell is further movably connected with a closure cover for closing the inflation port.

[0025] Advantages:

[0026] The application provides an inflator pump, which optimizes the structural layout of a driving device, a pump body and a power supply, can avoid heat accumulation, can also avoid mutual interference of heat between an inflator assembly and the power supply, and further enhances the heat dissipation function of the inflator pump. Specifically, a first accommodating groove, a second accommodating groove and a third accommodating groove are arranged, and the power supply, the driving device and the pump body are respectively located between different accommodating grooves, a partition is arranged between the third accommodating groove and the second accommodating groove and between the third accommodating groove, so as to realize physical isolation of the inflator assembly and the power supply, to a certain extent, to reduce mutual transmission and interference of heat, to avoid heat accumulation, and to enhance the heat dissipation function of the inflator pump. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0028] Figure 1 It is an exploded view of the inflator pump structure of the present embodiment.

[0029] Figure 2 It is an internal perspective view of the inflator pump of the present embodiment.

[0030] Figure 3 It is an internal structure of the inflator pump of the present embodiment. Figure 1

[0031] Figure 4 It is an internal structure of the inflator pump of the present embodiment. Figure 2

[0032] Figure 5 It is a space area division schematic view of the inflator pump of the present embodiment.

[0033] Reference signs:

[0034] 1 - shell; 11 - first accommodating groove; 111 - first area; 112 - second area; 12 - second accommodating groove; 121 - mounting portion; 122 - damping member; 13 - third accommodating groove; 131 - supporting portion; 14 - blocking portion; 15 - closure cover; 2 - main control board; 3 - power supply; 4 - inflator assembly; 41 - driving device; 42 - pump body; 43 - gear box; 44 - air pressure detection port; 45 - inflating port; 5 - heat dissipation fan; 6 - air pressure sensor; 7 - heat dissipation hole; 70 - heat dissipation hole array; 8 - bracket. DETAILED DESCRIPTION ​​

[0035] Hereinafter, various embodiments of the disclosure will be described more fully. The disclosure may have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit various embodiments of the disclosure to the specific embodiments disclosed herein, but the disclosure should be understood to encompass all adjustments, equivalents, and / or alternatives falling within the spirit and scope of various embodiments of the disclosure.

[0036] Hereinafter, the term "include" or "may include" used in various embodiments of the disclosure indicates the presence of the disclosed function, operation, or element, and does not limit the addition of one or more functions, operations, or elements. Also, as used in various embodiments of the disclosure, the terms "include", "have", and their conjugates merely indicate the presence of specific features, numbers, steps, operations, elements, components, or combinations thereof, and should not be understood as excluding the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof in advance.

[0037] In various embodiments of the disclosure, the expression "or" or "at least one of A or / and B" includes any combination of the listed terms or all combinations thereof. For example, the expression "A or B" or "at least one of A or / and B" can include A, can include B, or can include both A and B.

[0038] The expression (such as "first", "second", etc.) used in various embodiments of the disclosure can modify various constituent elements in various embodiments, but can not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are used only for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of various embodiments of the disclosure, a first element can be referred to as a second element, and likewise, a second element can be referred to as a first element.

[0039] It should be noted that if a description connects one constituent element to another constituent element, the first constituent element can be directly connected to the second constituent element, and a third constituent element can be "connected" between the first constituent element and the second constituent element. Conversely, when one constituent element is "directly connected" to another constituent element, it can be understood that there is no third constituent element between the first constituent element and the second constituent element.

[0040] The term "user" used in various embodiments of the disclosure can indicate a person using an electronic device or a device (for example, an artificial intelligence electronic device) using an electronic device.

[0041] The terminology used in the various embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this disclosure pertain. Terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this disclosure.

[0042] Example

[0043] This application provides an air pump, such as... Figure 1 As shown, it includes: housing 1, power supply 3, drive device 41, pump body 42 and inflation assembly 4;

[0044] Power supply 3 is electrically connected to drive device 41;

[0045] Specifically, in some embodiments of this application, the driving device 41 is an electric motor and the power source 3 is a battery;

[0046] Of course, there are no restrictions on the specific configuration of the drive unit 41 and the power supply 3.

[0047] like Figures 3 to 5 As shown, the housing 1 is provided with a first receiving groove 11, a second receiving groove 12 and a third receiving groove 13. The first receiving groove 11 and the second receiving groove 12 are connected to each other. The first receiving groove 11 and the second receiving groove 12 are distributed along the circumferential direction of the third receiving groove 13. A barrier part 14 is provided between the third receiving groove 13 and the first receiving groove 11 and the second receiving groove 12 respectively.

[0048] The pump body 42 is located in the first receiving tank 11, the drive device 41 is located in the second receiving tank 12, and the power supply 3 is located in the third receiving tank 13.

[0049] Understandably, the drive unit 41, pump body 42 and power supply 3 are placed between different receiving slots, and the third receiving slot 13 is also provided with a barrier part 14 between the first receiving slot 11 and the second receiving slot 12. This achieves effective thermal isolation and heat dissipation design, which can effectively reduce the possibility of heat generated by the power supply 3 and heat generated by the inflation component 4 being conducted to each other, prevent the power supply 3 from overheating due to the inflation component 4, and help to improve the service life of the power supply 3.

[0050] In addition, the blocking part 14 not only helps to isolate heat to a certain extent, but also provides physical protection to prevent the pump body 42, the driving device 41 or the power supply 3 from being mechanically impacted or pressed during operation, thereby enhancing the overall structural stability of the device.

[0051] Further, as shown in the drawings, the first accommodating groove 11 is provided with an air pressure sensor 6; Figure 4

[0052] The pump body 42 is also communicated with an air pressure detection port 44, which is arranged towards the air pressure sensor 6,

[0053] The first accommodating groove 11 has a first area 111 and a second area 112, the first area 111 is located away from the third accommodating groove 13, and the second area 112 is located close to the third accommodating groove 13;

[0054] The pump body 42 is located in the first area 111, and the air pressure sensor 6 and the air pressure detection port 44 are located in the second area 112.

[0055] It can be understood that by arranging the air pressure sensor 6 and the air pressure detection port 44 in the second area 112, the air pressure sensor 6 can accurately monitor the air flow pressure discharged by the pump body 42 through the air pressure detection port 44, so that the sensor can detect the actual air flow pressure change during the operation of the pump body 42, thereby providing more accurate air pressure data.

[0056] The first area 111 is used to accommodate the pump body 42, the second area 112 is used to accommodate the air pressure sensor 6 and the air pressure detection port 44, the third accommodating groove 13 is provided with the power supply 3, the second area 112 is located close to the third accommodating groove 13, that is, the second area 112 is close to the power supply 3, and the first area 111 is located away from the third accommodating groove 13, that is, the first area 111 is away from the power supply 3;

[0057] The first area 111 corresponds to a heat isolation area between the power supply 3 and the pump body 42, which makes the pump body 42 as far away from the power supply 3 as possible without occupying additional space, thereby helping to avoid the mutual interference of heat between the power supply 3 and the pump body 42 to a certain extent, and the air pressure detection port 44 of the pump body 42 located in the second area 112 can also promote the flow of gas inside the shell 1 to a certain extent, thereby avoiding the accumulation of heat.

[0058] Further, as shown in the drawings, the first accommodating groove 11 and the second accommodating groove 12 together present an L shape, Figures 3 to 5

[0059] ​​Specifically, in some embodiments of the present application, the first accommodating groove 11 and the second accommodating groove 12 are arranged along the peripheral edge of the third accommodating groove 13, and the L-shaped structure formed after the first accommodating groove 11 and the second accommodating groove 12 are communicated semi-surrounds the third accommodating groove 13;

[0060] The driving device 41 is arranged along the width direction of the power supply 3, so that the axial direction of the output shaft of the driving device 41 is parallel or approximately parallel to the width direction of the power supply 3; and the pump body 42 is arranged along the length direction of the power supply 3, so that the length direction of the pump body 42 is parallel or approximately parallel to the length direction of the power supply 3;

[0061] The layout mode that the driving device 41 is arranged along the width direction of the power supply 3 and the pump body 42 is arranged along the length direction of the power supply 3 makes the arrangement of the internal structure of the inflator pump more compact, avoids unnecessary empty space, makes the driving device 41, the power supply 3 and the pump body 42 be reasonably arranged, improves the utilization rate of the overall space, and also makes the driving device 41, the power supply 3 and the pump body 42 have sufficient space between each other, which can not only ensure functionality but also keep neat and compact, and is helpful to keep the center of gravity of the inflator pump device stable and reduce inclination or vibration caused by unbalanced layout.

[0062] Further, as shown in Figures 2 to 4 , the surface of the shell 1 is also distributed with heat dissipation holes 7, all the heat dissipation holes 7 are distributed in a row-column mode to form an N×M heat dissipation hole array 70, where N and M are both positive integers not less than 1.

[0063] The arrangement layout of the heat dissipation holes 7 distributed in a row-column mode forms the heat dissipation hole array 70, which is helpful to uniform heat dissipation, can increase the heat dissipation area of the surface of the shell 1, promote the circulation of air inside and outside the shell 1, promote heat exchange, and further improve the heat dissipation efficiency.

[0064] Specifically, in some embodiments of the present application, the heat dissipation hole array 70 is distributed on the left and right sides of the shell 1;

[0065] The design of the heat dissipation holes 7 on the left and right sides of the shell 1 is helpful to the air entering from one side of the shell 1 and being discharged from the other side of the shell 1, forming natural air flow, accelerating the circulation speed of the air, and improving the heat exchange efficiency; the air flow on the left and right sides of the shell 1 can make the heat be dissipated more uniformly on the surface of the whole device, promote the temperature balance of the inflator pump device, and the distribution of the heat dissipation holes 7 on the left and right sides of the shell 1 can also effectively increase the heat dissipation area.

[0066] Further, as shown in Figure 4 , a heat dissipation fan 5 is also arranged, the heat dissipation fan 5 is coaxially connected with the output shaft of the driving device 41, and the air outlet direction or the air inlet direction of the heat dissipation fan 5 is towards the heat dissipation holes 7.

[0067] The air inlet direction or air outlet direction of the heat dissipation fan 5 is arranged towards the heat dissipation hole 7, which optimizes the air flow inside the device, and the external cold air enters through the heat dissipation hole 7, and the hot air inside the device flows out through the heat dissipation hole 7, forming a good air circulation, accelerating the heat exchange speed, and helping to speed up the heat dissipation;

[0068] The output shaft of the driving device 41 is used to drive the pump body 42 to realize the inflation function, and the output shaft of the driving device 41 is also used to drive the heat dissipation fan 5, and one of the two ends of the output shaft of the driving device 41 is used to connect the pump body 42, and the other is used to connect the heat dissipation fan 5; no additional driving structure is needed, which can reduce energy consumption and improve the integration of the inflation pump system.

[0069] Further, as shown in Figure 1 The support 8 and the main control board 2 are arranged, and the main control board 2 is electrically connected with the driving device 41 and the power supply 3;

[0070] One side of the support 8 is used to support the main control board 2, and the other side of the support 8 is used to connect the power supply 3 and the inflation assembly 4.

[0071] One side of the support 8 is used to support the main control board 2, which helps to enhance the fixation of the main control board 2 in the inflation pump device, and further enhances the anti-vibration performance or impact resistance of the main control board 2, thereby improving the reliability and stability of the inflation pump device; the other side of the support 8 connects the power supply 3 and the inflation assembly 4, which helps to fix the driving device 41 and the pump body 42 and other components in the appropriate position, and maintains the connection state of each component.

[0072] The components inside the inflation pump device are supported or connected by the support 8, which promotes the rational use of the internal space of the device, and makes the overall design of the device more compact and simple.

[0073] The design of the support 8 also makes the main control board 2 and the power supply 3 and the inflation assembly 4 have a certain space isolation, which further avoids the mutual influence of heat between the components on the basis of the above-mentioned arrangement mode of the power supply 3 and the inflation assembly 4, and helps to maintain the normal work of the main control board 2.

[0074] Further, as shown in Figure 3 The bottom of the third accommodating groove 13 is sequentially provided with a plurality of supporting portions 131 for supporting the power supply 3, so that the power supply 3 is erected on the shell 1.

[0075] Specifically, in some embodiments of the present application, the plurality of supporting portions 131 are uniformly distributed on the bottom of the third accommodating groove 13;

[0076] The plurality of supporting portions 131 arranged at the bottom of the third accommodating groove 13 can uniformly disperse the weight of the power supply 3, so that the stress generated by the power supply 3 is uniformly distributed to each supporting portion 131, thereby realizing stable support of the power supply 3;

[0077] More specifically, in some embodiments of the present application, the supporting portions 131 are connected to each other;

[0078] The plurality of supporting portions 131 support the power supply 3, so that the power supply 3 is suspended relative to the bottom of the third accommodating groove 13, and there is a certain space between the power supply 3 and the bottom of the third accommodating groove 13, which helps to promote the flow of air around the power supply 3, reduce heat accumulation, and improve heat dissipation efficiency.

[0079] Further, as shown in Figure 4 , the second accommodating groove 12 is provided with a mounting portion 121 for mounting the driving device 41, and the mounting portion 121 is matched in shape with the driving device 41.

[0080] The mounting portion 121 is matched in shape with the driving device 41, so that the driving device 41 can be accurately mounted at a specified position through the mounting portion 121, realizing quick installation of the driving device 41, and also helping to enhance the stability and safety of the driving device 41 during operation.

[0081] Further, as shown in Figure 4 , a damping member 122 is arranged between the mounting portion 121 and the driving device 41, one side of the damping member 122 is connected to the mounting portion 121, and the other end of the damping member 122 is connected to the driving device 41.

[0082] The matched mounting portion 121 can reduce friction or vibration between the driving device 41 and the first accommodating groove 11, thereby reducing energy loss, improving the working efficiency of the driving device 41, and also reducing wear of the driving device 41, prolonging the service life of the driving device 41;

[0083] The damping member 122 can absorb and isolate the vibration generated by the driving device 41, thereby reducing the transmission of vibration to other components, effectively suppressing vibration during operation of the equipment, avoiding the influence of vibration on other components of the inflation pump system, and accurately and stably installing the driving device 41, thereby reducing the noise that may be generated during operation.

[0084] Further, as shown in Figure 1 and Figure 4 , the inflation assembly 4 comprises the driving device 41 and the pump body 42; the inflation assembly 4 further comprises a gear box 43, and the pump body 42 and the driving device 41 are connected through the gear box 43;

[0085] It can be understood that the gear box 43 can reduce the rotating speed of the driving device 41 through gear transmission and increase the output torque; the driving device 41 usually operates at a high speed, while the pump body 42 needs a low rotating speed to work stably and efficiently; the gear box 43 can convert the high rotating speed into a low rotating speed through the transmission of the speed reduction gear, so as to ensure that the pump body 42 works at the required speed, while providing sufficient output torque to drive the pump body 42 to operate.

[0086] The housing 1 is provided with an inflation port 45 which communicates with the pump body 42, and the housing 1 is further movably connected with a closure cover 15 for closing the inflation port 45.

[0087] The closure cover 15 can protect the inflation port 45 from the entry of external pollutants such as dust, moisture, etc., maintain the closed state of the inflation port 45, prevent the entry of pollutants into the pump body 42 or other precision components, thereby prolonging the service life of the equipment and reducing the occurrence of faults.

[0088] The embodiment of the present application has at least the following beneficial effects:

[0089] The present application provides an inflation pump which optimizes the structural layout of the driving device 41, the pump body 42 and the power supply 3, can avoid the accumulation of heat, and can also avoid the mutual interference of heat between the inflation assembly 4 and the power supply 3, thereby enhancing the heat dissipation function of the inflation pump.

[0090] Specifically, the first accommodating groove 11, the second accommodating groove 12 and the third accommodating groove 13 are arranged, and the power supply 3, the driving device 41 and the pump body 42 are respectively located between different accommodating grooves, and the third accommodating groove 13 and the second accommodating groove 12 and the third accommodating groove 13 are provided with a partition piece to realize the physical isolation of the inflation assembly 4 and the power supply 3, to a certain extent, to reduce the mutual transmission and interference of heat, thereby avoiding the accumulation of heat and enhancing the heat dissipation function of the inflation pump.

[0091] Those skilled in the art can understand that the drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the drawings are not necessarily necessary for implementing the present application.

[0092] Those skilled in the art can understand that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be changed to be located in one or more devices different from the implementation scenario. The modules of the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0093] The above application serial number is only for description, not representing the pros and cons of the implementation scenario.

[0094] The above disclosed are only several specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be thought of by any person skilled in the art shall fall within the protection scope of the present application.

Claims

1. An air pump, characterized in that, include: Housing, power supply, drive unit, and pump body; The power supply is electrically connected to the drive device. The housing is provided with a first receiving groove, a second receiving groove and a third receiving groove. The first receiving groove and the second receiving groove are connected to each other. The first receiving groove and the second receiving groove are distributed along the circumferential direction of the third receiving groove. A barrier is provided between the third receiving groove and the first receiving groove and the second receiving groove respectively. The pump body is located in the first receiving tank, the drive device is located in the second receiving tank, and the power supply is located in the third receiving tank.

2. An air pump according to claim 1, characterized in that, A pressure sensor is installed in the first receiving tank; The pump body is also connected to a pressure detection port, which is oriented towards the pressure sensor. The first receiving groove has a first region and a second region, the first region being located on the side away from the third receiving groove, and the second region being located on the side closer to the third receiving groove; The pump body is located in the first area, and the air pressure sensor and the air pressure detection port are located in the second area.

3. An air pump according to claim 1, characterized in that, The first and second receiving grooves together exhibit an L-shaped form. The drive device is arranged along the width direction of the power source, and the pump body is arranged along the length direction of the power source.

4. An air pump according to claim 1, characterized in that, The surface of the shell is also provided with heat dissipation holes, all of which are arranged in a row-column pattern to form an N×M heat dissipation hole array, where N and M are both positive integers not less than 1.

5. An air pump according to claim 4, characterized in that, It is also equipped with a cooling fan, which is coaxially connected to the output shaft of the drive device, and the air outlet or air inlet direction of the cooling fan is oriented towards the heat dissipation hole.

6. An air pump according to claim 1, characterized in that, It is also provided with a bracket and a main control board, the main control board being electrically connected to the drive device and the power supply; one side of the bracket is used to support the main control board, and the other side of the bracket is used to connect the power supply and the inflation assembly.

7. An air pump according to claim 1, characterized in that, The bottom of the third receiving tank is provided with a plurality of support parts for supporting the power supply, so that the power supply is mounted on the housing.

8. An air pump according to claim 1, characterized in that, The second receiving groove is provided with a mounting part for mounting the drive device, and the mounting part matches the shape of the drive device.

9. An air pump according to claim 8, characterized in that, A shock absorber is provided between the mounting part and the driving device. One side of the shock absorber is connected to the mounting part, and the other end of the shock absorber is connected to the driving device.

10. An air pump according to any one of claims 1 to 9, characterized in that, The inflation assembly includes the drive unit and the pump body; The inflation assembly also includes a gearbox, through which the pump body is connected to the drive device; The housing is provided with an air inlet, which is connected to the pump body, and a sealing cover for sealing the air inlet can also be movably connected to the housing.

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