Multifunctional inflator pump

Abstract

The utility model discloses a multifunctional inflator pump which comprises a shell, a storage battery, a driving motor, a transmission mechanism, a compression mechanism and a heat dissipation device, the storage battery, the driving motor, the transmission mechanism, the compression mechanism and the heat dissipation device are installed in the shell, a through groove is formed in the side wall of the shell, and the heat dissipation device is detachably connected with the side wall of the shell; the heat dissipation device comprises a mounting plate which is located on the outer side of the through groove and connected with the side wall of the shell, the size of the mounting plate is larger than that of the through groove, an air inlet groove is formed in the mounting plate, and an exhaust groove is further formed in the side wall of the shell; the mounting frame is mounted on the inner wall of the mounting plate and located in the shell, and the two ends of the mounting frame are connected with the inner wall of the mounting plate through bolts; the filter layer is installed in the installation frame, the heat dissipation fan electrically connected with the storage battery is installed on the installation frame, fan blades on the heat dissipation fan are located in the installation frame, and air holes are formed in the side wall of the installation frame. The heat dissipation device has the advantages that maintenance of the heat dissipation device is facilitated, and impurities in air can be filtered out.

Description

Technical Field

[0001] This utility model relates to a vehicle-mounted air inflation device, and more particularly to a multi-functional air pump. Background Technology

[0002] A vehicle-mounted air pump, also known as an air inflator, air pump, or air compressor, works by using a piston or other compression mechanism inside the pump body to draw in air from outside the pump body for compression. The compressed air is then delivered to the target object (such as a tire or air mattress) through an air tube or pipe, thus completing the inflation process. In addition to inflating tires, air pumps can also inflate air mattresses, air beds, and other similar items.

[0003] In existing technologies, such as CN221856922U, which discloses an air pump and its system, a heat dissipation channel is formed by an air inlet, the inner wall of the housing, and an air outlet, and a high-efficiency heat dissipation design equipped with a fan. When the fan rotates, it drives the air to flow in the heat dissipation channel, thereby effectively dissipating the heat generated by the air pump during operation from the air outlet. This can prevent the compressor from overheating and thus extend the service life of the air pump. The dual-shaft motor setting allows the fan to work at the same time when the compressor is working, so that the air pump can perform air filling and heat dissipation at the same time, thereby improving the heat dissipation effect of the air pump.

[0004] However, it also has some shortcomings. For example, when the fan is working, it directly draws air from outside the air pump into the air pump. This will draw dust and other impurities into the pump body along with the air, causing a large amount of dust and other impurities to accumulate inside the air pump, which will reduce the service life of the air pump. At the same time, when the compression mechanism in the air pump is working, it will draw air from inside the air pump into the compression mechanism for compression. If dust and other impurities are compressed along with the air, it will accelerate the wear rate of the compression mechanism, thereby reducing its service life. Furthermore, if the compression mechanism introduces gas mixed with dust and other impurities into the item to be inflated, it will also reduce the service life of the item to be inflated. In addition, in the above-mentioned disclosed technology, if the fan needs to be maintained or replaced, the air pump housing must be disassembled first before the fan can be maintained or replaced. Therefore, it is difficult for users to maintain or replace the fan. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a multifunctional air pump that can not only filter impurities in the air but also facilitate the maintenance of the heat dissipation device.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is a multi-functional air pump, including a housing and a battery, a drive motor, a transmission mechanism, a compression mechanism, and a heat dissipation device installed in the housing. A through groove is formed on the side wall of the housing for the heat dissipation device to be inserted into the housing, and the heat dissipation device is detachably connected to the side wall of the housing. The heat dissipation device includes a mounting plate, which is connected to the side wall of the housing by multiple bolts. The size of the mounting plate is larger than the size of the through groove, and the mounting plate is located outside the through groove. Multiple air inlet slots are formed on the mounting plate, and the housing is positioned opposite the air inlet slots. The device includes: a mounting frame installed on the inner wall of a mounting plate, located within the housing, the mounting frame being U-shaped, with both ends connected to the inner wall of the mounting plate via multiple bolts; a filter layer installed within the mounting frame, abutting against an air inlet slot on the mounting plate; and a cooling fan installed on the mounting frame, with its blades located within the mounting frame. The mounting frame has multiple air holes on the side wall where the cooling fan is installed, allowing airflow through. The cooling fan is electrically connected to the battery.

[0007] A further preferred embodiment of this utility model is as follows: the housing is further provided with mounting seats for fixing the battery, the drive motor and the compression mechanism respectively, and the inner wall of the mounting seat is provided with a plurality of elastic clamping blocks that abut against the battery, the drive motor and the compression mechanism respectively.

[0008] A further preferred embodiment of this utility model is as follows: the compression mechanism is provided with a connector for connecting to the inflation pipe. The connector extends out of the housing. The connector includes a cylinder. A first nut is fixedly sleeved on the cylinder. External threads are provided on both ends of the cylinder. The cylinder is screwed to the compression mechanism. A sealing ring is provided on the side wall of both the left and right ends of the cylinder.

[0009] A further preferred embodiment of this utility model is as follows: each bolt connecting the mounting plate and the housing is provided with a knob, the knob being located on the outside of the mounting plate and the housing, and the inner wall of the housing being provided with a number of second nuts equal to the number of bolts, the bolts passing through the mounting plate and the housing being screwed into the second nuts.

[0010] A further preferred embodiment of this utility model is: a mesh-like partition is provided between the filter layer and the fan blade in the mounting frame, and the two ends of the partition are respectively connected to the side wall of the mounting frame.

[0011] A further preferred embodiment of this utility model is: a groove matching the mounting plate is provided on the outer side wall of the housing of the through groove, and the mounting plate is located in the groove.

[0012] A further preferred embodiment of this utility model is as follows: each of the elastic clamping blocks includes a connecting block, the connecting block is installed on the inner wall of the mounting base, and the connecting block has a receiving groove on the side wall away from the mounting base; a bearing plate, the bearing plate slides in the mounting receiving groove, and an elastic block is provided on the top of the bearing plate; a spring telescopic rod, the spring telescopic rod is installed in the receiving groove, and the telescopic end of the spring telescopic rod is connected to the bottom of the bearing plate.

[0013] A further preferred embodiment of this utility model is as follows: an annular mounting groove for installing a sealing ring is respectively provided at the left and right ends of the cylinder. The sealing ring includes a connecting ring. The connecting ring is installed in the mounting groove. A limiting protrusion is provided on the ring wall of the connecting ring. A limiting groove matching the limiting protrusion is provided on the groove wall of the mounting groove. The limiting protrusion is located in the limiting groove.

[0014] A further preferred embodiment of this utility model is: an elastic sleeve is provided on the outer wall of the connecting block, and the elastic sleeve is connected to the inner wall of the mounting base.

[0015] A further preferred embodiment of this utility model is as follows: a guide groove is provided on the groove wall at both ends of the receiving groove, the left and right ends of the bearing plate are respectively located in the guide groove, and the left and right ends of the bearing plate are slidably connected to the guide groove.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. When installing the heat dissipation device, it can be inserted into the housing of the air pump through the through groove, and then the heat dissipation device is connected and fixed to the groove wall with multiple bolts. In this way, when it is necessary to disassemble the heat dissipation device, simply remove the bolts connecting the heat dissipation device to the groove wall, and then take the heat dissipation device out of the through groove. Thus, when maintaining the heat dissipation device, it is no longer necessary to disassemble the housing of the air pump before maintaining the heat dissipation device, thereby facilitating the maintenance of the heat dissipation device.

[0018] 2. When external air is drawn into the mounting frame through the air inlet slot on the mounting plate by the cooling fan, it first passes through the filter layer. This filter layer blocks and isolates dust and other impurities mixed with the air, preventing the accumulation of large amounts of dust and other impurities inside the air pump and thus extending its service life. Simultaneously, the compression mechanism will not draw in air from inside the air pump along with dust and other impurities during operation, reducing wear on the compression mechanism and extending its service life, which in turn extends the service life of the air pump. Furthermore, it prevents the compression mechanism from introducing gas mixed with dust and other impurities into the item to be inflated, thus extending the lifespan of the item as well. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a front view of the present invention;

[0022] Figure 3 This is the left view of the present invention;

[0023] Figure 4 This is the right view of the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the connection between the shell and the heat dissipation device in this utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the connection between the shell and the heat dissipation device in this utility model;

[0027] Figure 8 This is an isometric view of the three-dimensional structure of the connection between the shell and the heat dissipation device in this utility model;

[0028] Figure 9 for Figure 6 Enlarged view of point A in the middle;

[0029] Figure 10 This is a schematic diagram of the elastic clamping block in this utility model;

[0030] Figure 11 This is a schematic diagram of the connector structure in this utility model;

[0031] Figure 12 for Figure 11 Enlarged view of point B in the middle;

[0032] Figure 13 This is a schematic diagram of the connection between the connector and the inflation tube in this utility model.

[0033] In the diagram: 1. Air pump; 11. Groove; 12. Housing; 13. Through groove; 2. Heat dissipation device; 21. Mounting plate; 211. Air inlet slot; 22. Knob; 221. Second nut; 23. Mounting frame; 231. Air hole; 24. Filter layer; 25. Partition plate; 26. Cooling fan; 261. Fan blade; 3. Support block; 4. Connector; 401. Cylinder; 402. First nut; 403. External thread; 404. Sealing ring; 405. Connecting ring; 4 06. Mounting slot; 407. Limiting groove; 408. Limiting protrusion; 41. Elastic baffle; 42. Screw sleeve; 43. Inflation pipe; 5. Exhaust groove; 51. Dustproof net; 6. Battery; 7. Mounting base; 71. Elastic clamping block; 711. Connecting block; 712. Receiving groove; 713. Bearing plate; 714. Spring telescopic rod; 715. Elastic block; 716. Elastic sleeve; 717. Guide groove; 8. Compression mechanism; 9. Transmission mechanism; 10. Drive motor. Detailed Implementation

[0034] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0035] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0036] This embodiment mainly describes the structure of a multifunctional air pump, as follows:

[0037] like Figures 1-13 As shown, a multi-functional air pump includes a housing 12 and a battery 6, a drive motor 10, a transmission mechanism 9, a compression mechanism 8 and a heat dissipation device 2 installed in the housing 12. The battery 6 is electrically connected to the drive motor 10 and the heat dissipation device 2, respectively, and the drive motor 10 drives the compression mechanism 8 to work through the transmission mechanism 9.

[0038] To facilitate maintenance of the heat dissipation device 2, a groove 11 for installing the heat dissipation device 2 is provided on the outer side of the side wall of the housing 12. At the same time, a through groove 13 for accommodating the heat dissipation device 2 is opened in the groove 11, and the through groove 13 is connected to the interior of the housing 12. Thus, when installing the heat dissipation device 2, it can be inserted into the housing 12 of the air pump 1 through the through groove 13, and then the heat dissipation device 2 is connected and fixed to the groove wall of the groove 11 with multiple bolts. In this way, when it is necessary to disassemble the heat dissipation device 2, it is only necessary to remove the bolts connecting the heat dissipation device 2 to the groove wall of the groove 11, and then remove the heat dissipation device 2 from the through groove 13. Thus, when maintaining the heat dissipation device 2, it is no longer necessary to disassemble the housing of the air pump 1 before maintaining the heat dissipation device 2, thereby facilitating the maintenance of the heat dissipation device 2. The groove 11 also prevents the part of the heat dissipation device 2 located outside the housing 12 from protruding from the surface of the housing 12, thereby improving the aesthetics of the air pump 1.

[0039] The heat dissipation device 2 includes a mounting plate 21 bolted into the groove 11, located outside the through groove 13. The mounting plate 21 is larger than the through groove 13, thus shielding the through groove 13 and facilitating connection between the mounting plate 21 and the groove wall of the groove 11. A U-shaped mounting frame 23 is provided on the inner side wall of the mounting plate 21, with its left and right ends bolted to the mounting plate 21. A cooling fan 2 electrically connected to the battery 6 is mounted on the mounting frame 23. 6. The fan blades 261 on the cooling fan 26 are located in the mounting frame 23. In order to allow the cooling fan 26 to draw air from outside the air pump 1 into the housing 12 when it is working, not only are multiple air inlet slots 211 provided on the mounting plate 21, but also multiple air holes 231 for airflow are provided on the side wall of the mounting frame 23 where the cooling fan 26 is located. The air inlet slots 211 on the mounting plate 21 are all located in the opening of the mounting frame 23. At the same time, in order to facilitate the exhaust of the air carrying heat from the housing 12, multiple exhaust slots 5 are provided on the side wall of the housing 12 symmetrical to the air inlet slots 211.

[0040] Then, a filter layer 24 made of sponge is provided on the side of the mounting frame 23 near the mounting plate 21. When the air outside the air pump 1 is drawn into the mounting frame 23 by the cooling fan 26 from the air inlet 211 on the mounting plate 21, it first passes through the filter layer 24. Thus, dust and other impurities mixed with the air are blocked and isolated by the filter layer 24, thereby avoiding the problem of a large amount of dust and other impurities accumulating inside the air pump 1, and thus extending the service life of the air pump 1. At the same time, when the compression mechanism 8 is working, it will not draw the air inside the air pump 1 along with dust and other impurities into the compression mechanism 8 for compression, thereby reducing the wear rate of the compression mechanism 8, thereby extending the service life of the compression mechanism 8, and further extending the service life of the air pump 1. At the same time, it will also prevent the compression mechanism 8 from inputting gas mixed with dust and other impurities into the item to be inflated, thus extending the service life of the item to be inflated.

[0041] To prevent dust and other impurities from entering the housing 12 through the gap between the mounting plate 21 and the filter layer 24 via the air inlet slot 211 when the air pump 1 is not in use, and to prevent the filter layer 24 from contacting the air inlet slot 211 on the mounting plate 21, and to prevent the fan blade 261 from scratching the filter layer 24 when rotating, a mesh partition 25 is provided between the fan blade 261 and the filter layer 24. The two ends of the partition 25 are connected to the side wall of the mounting frame 23, and a safe distance is also left between the partition 25 and the fan blade 261. The mesh partition 25 also facilitates the passage of filtered air through the interior of the mounting frame 23. Similarly, to prevent dust and other impurities from entering the housing 12 through the exhaust slot 5 when the air pump 1 is not in use, a dustproof net 51 is provided in the exhaust slot 5.

[0042] When the filter layer 24 needs to be cleaned or replaced, first remove the bolts connecting the mounting plate 21 to the groove 11, so that the operator can remove the mounting plate 21 together with the mounting frame 23 through the through groove 13 from the housing 12 of the air pump 1. Then remove the bolts connecting the mounting frame 23 to the mounting plate 21, so that the mounting frame 23 is separated from the mounting plate 21. In this way, the operator can take out the filter layer 24 located in the mounting frame 23 and clean or replace the filter layer 24, which facilitates the cleaning or replacement of the filter layer 24.

[0043] Furthermore, a knob 22 located on the outside of the mounting plate 21 is provided on each of the multiple bolts connecting the mounting plate 21 and the groove 11, and the knob 22 is connected to the bolt. At the same time, the same number of second nuts 221 as the bolts are provided on the inner wall of the housing 12. After the bolts pass through the mounting plate 21 and the housing 12, they are screwed into the second nuts 221. In this way, when disassembling the heat dissipation device 2, the operator can turn the knob 22 to disengage the bolts from the second nuts 221 and remove the bolts from the mounting plate 21. This allows the heat dissipation device 2 to be removed from the housing 12. Thus, the heat dissipation device 2 can be disassembled without the need for tools, which further facilitates the maintenance of the heat dissipation device 2. The setting of the second nuts 221 can make the connection between the mounting plate 21 and the groove wall of the groove 11 more secure.

[0044] When the air pump 1 is placed flat on the ground, in order to prevent the housing 12 from directly contacting the ground, multiple support blocks 3 are evenly arranged at the bottom of the housing 12. In this way, when the air pump 1 is placed flat on the ground, the support blocks 3 contact the ground, thereby reducing the problem of the housing 12 being scratched by the ground. Similarly, in order to place the air pump 1 vertically and stably on the ground, the knob 22 is set flat on the side wall away from the mounting plate 21. In this way, when the air pump 1 is placed vertically, the knob 22 can be used as a support block 3.

[0045] To facilitate the installation of the battery 6, drive motor 10, and compression mechanism 8 into the housing 12, the housing 12 is also provided with mounting bases 7 for fixing the battery 6, drive motor 10, and compression mechanism 8 respectively. In order to improve the stability of the battery 6, drive motor 10, and compression mechanism 8 in the mounting base 7, multiple elastic clamping blocks 71 are provided on the inner wall of the mounting base 7, which abut against the battery 6, drive motor 10, and compression mechanism 8 respectively. Each elastic clamping block 71 includes a connecting block 711 installed on the inner wall of the mounting base 7, and a receiving groove 712 is opened on the side wall of the connecting block 711 away from the mounting base 7. A support plate 713 is slidably arranged in the receiving groove 712. Then, an elastic block 715 made of rubber is provided on the top of the support plate 713. A spring telescopic rod 714 is provided in the receiving groove 712 at the bottom of the support plate 713, and the telescopic end of the spring telescopic rod 714 is connected to the bottom of the support plate 713.

[0046] When the battery 6, drive motor 10, and compression mechanism 8 are installed into the mounting base 7, the elastic block 715 is compressed, and simultaneously, the elastic block 715 compresses the support plate 713, causing the support plate 713 to move inward into the receiving groove 712. The spring telescopic rod 714 connected to the support plate 713 is also compressed due to the movement of the support plate 713. Due to the rebound effect of the spring telescopic rod 714, after being compressed, the spring telescopic rod 714 pushes the support plate 713 outward from the receiving groove 712. This improves the clamping effect between the elastic block 715 and the battery 6, drive motor 10, and compression mechanism 8. To improve the stability of the battery 6, drive motor 10, and compression mechanism 8 within the mounting base 7, the use of a rubber elastic block 715 and a spring telescopic rod 714 reduces the transmission of vibrations generated by the drive motor 10 and compression mechanism 8 during operation to the housing 12, thereby reducing the noise generated by the air pump 1 during operation. To further reduce the transmission of vibrations generated by the drive motor 10 and compression mechanism 8 to the housing 12 during operation, a rubber elastic sleeve 716 is provided on the outer wall of the connecting block 711, and the elastic sleeve 716 is connected to the inner wall of the mounting base 7, thus further reducing the noise generated by the air pump 1 during operation.

[0047] Furthermore, in order to enable the support plate 713 to move smoothly in the receiving groove 712, a guide groove 717 is provided on the groove wall at both ends of the receiving groove 712, and the left and right ends of the support plate 713 are respectively located in the guide groove 717 and slidably connected to the guide groove 717.

[0048] To facilitate connection between the air pump 1 and the air hose 43 during use, a connector 4 for connecting to the air hose 43 is provided on the compression mechanism 8. The connector 4 extends through the housing 12, and a through hole is provided on the housing 12 to facilitate the connector 4's passage through the housing 12. The connector 4 includes a cylindrical body 401, and a first nut 402 is fixedly fitted on the cylindrical body 401. External threads 403 are provided on both ends of the cylindrical body 401 at the first nut 402. Thus, one end of the cylindrical body 401 is screwed to the compression mechanism 8, and the other end of the cylindrical body 401 is screwed to the air hose 43 through a threaded sleeve 42. To ensure the sealing of the connector 4 connection, the side walls at both ends of the cylindrical body 401 are sealed. Each part is provided with a sealing ring 404. The first nut 402 is provided to facilitate the connection between the cylinder 401 and the compression mechanism 8. In order to prevent dust and other impurities from entering the interior of the housing 12 through the through hole, an elastic baffle 41 matching the through hole is provided in the through hole. The elastic baffle 41 is made of soft rubber. When the cylinder 401 is not connected to the threaded sleeve 42 on the air tube 43, the elastic baffle 41 abuts against the outer wall of the cylinder 401. When the cylinder 401 is connected to the threaded sleeve 42 on the air tube 43, the threaded sleeve 42 can push the elastic baffle 41 to bend and move into the interior of the housing 12, so that the elastic baffle 41 can abut against the outer wall of the threaded sleeve 42.

[0049] Furthermore, to prevent the sealing rings 404 at both ends of the cylinder 401 from detaching from the cylinder 401 when the connector 4 is not in use, an annular mounting groove 406 for installing the sealing ring 404 is provided at each of the left and right ends of the cylinder 401. The sealing ring 404 includes a connecting ring 405 installed in the mounting groove 406. At the same time, a limiting protrusion 408 is provided on the annular wall of the connecting ring 405, and a limiting groove 407 matching the limiting protrusion 408 is provided on the groove wall of the connecting groove, and the limiting protrusion 408 is located in the limiting groove 407.

[0050] The drive motor 10, transmission mechanism 9, compression mechanism 8, and inflation pipe 43, as well as the screw sleeve 42 installed on the inflation pipe 43, described in this utility model are common prior art in the field, and therefore are not described in detail in this utility model.

[0051] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] The multifunctional air pump provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A multi-functional air pump, comprising a housing and a battery, a drive motor, a transmission mechanism, a compression mechanism, and a heat dissipation device installed within the housing, characterized in that: The side wall of the housing is provided with a through groove for a heat dissipation device to be installed in the housing, and the heat dissipation device is detachably connected to the side wall of the housing. The heat dissipation device includes The mounting plate is connected to the side wall of the housing by multiple bolts. The size of the mounting plate is larger than the size of the through groove. The mounting plate is located outside the through groove. The mounting plate has multiple air inlet grooves. The housing has multiple exhaust grooves on a side wall symmetrical to the air inlet grooves. The mounting frame is installed on the inner wall of the mounting plate and is located in the housing. The mounting frame is arranged in a Z-shape, and both ends of the mounting frame are connected to the inner wall of the mounting plate by multiple bolts. A filter layer is installed in the mounting frame and abuts against the air inlet slot on the mounting plate; A cooling fan is mounted on a mounting frame, with the fan blades located within the mounting frame. The mounting frame has multiple air holes on the side wall where the cooling fan is mounted, allowing airflow to pass through. The cooling fan is electrically connected to a battery.

2. The multifunctional air pump according to claim 1, characterized in that: The housing is also provided with mounting bases for fixing the battery, drive motor and compression mechanism respectively. The inner wall of the mounting base is provided with a plurality of elastic clamping blocks that abut against the battery, drive motor and compression mechanism respectively.

3. The multifunctional air pump according to claim 1, characterized in that: The compression mechanism is provided with a connector for connecting to the inflation tube. The connector extends out of the housing and includes a cylinder. A first nut is fixedly sleeved on the cylinder. External threads are provided on both ends of the cylinder. The cylinder is screwed to the compression mechanism. A sealing ring is provided on the side wall of both the left and right ends of the cylinder.

4. A multifunctional air pump according to claim 1, characterized in that: Each bolt connecting the mounting plate and the housing is equipped with a knob, which is located on the outside of the mounting plate and the housing. The inner wall of the housing is provided with a number of second nuts equal to the number of bolts. The bolts pass through the mounting plate and the housing and are screwed into the second nuts.

5. A multifunctional air pump according to claim 1, characterized in that: The mounting frame has a mesh-like partition between the filter layer and the fan blades, and the two ends of the partition are connected to the side wall of the mounting frame.

6. A multifunctional air pump according to claim 1, characterized in that: The outer sidewall of the casing of the through groove is provided with a groove that matches the mounting plate, and the mounting plate is located in the groove.

7. A multifunctional air pump according to claim 2, characterized in that: The elastic clamping blocks all include A connecting block is installed on the inner wall of the mounting base, and a receiving groove is formed on the side wall of the connecting block away from the mounting base; A support plate, wherein the support plate slides in a mounting groove, and an elastic block is provided on the top of the support plate; A spring telescopic rod is installed in a receiving groove, and the telescopic end of the spring telescopic rod is connected to the bottom of the support plate.

8. A multifunctional air pump according to claim 3, characterized in that: The left and right ends of the cylinder are respectively provided with annular mounting grooves for installing sealing rings. The sealing ring includes a connecting ring, which is installed in the mounting groove. The connecting ring has a limiting protrusion on its ring wall, and the mounting groove has a limiting groove that matches the limiting protrusion. The limiting protrusion is located in the limiting groove.

9. A multifunctional air pump according to claim 7, characterized in that: An elastic sleeve is provided on the outer wall of the connecting block, and the elastic sleeve is connected to the inner wall of the mounting base.

10. A multifunctional air pump according to claim 7, characterized in that: A guide groove is provided on the groove wall at both ends of the receiving groove, and the left and right ends of the bearing plate are respectively located in the guide groove. The left and right ends of the bearing plate are slidably connected to the guide groove.

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