CN219865379U

CN219865379U - Multifunctional air compressor

Info

Publication number: CN219865379U
Application number: CN202320334063.5U
Authority: CN
Inventors: 杨琪; 付清团
Original assignee: Richtek Electronics Co Ltd
Current assignee: Richtek Electronics Co Ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-10-20
Anticipated expiration: 2033-02-24

Abstract

The utility model relates to a multifunctional air compressor, which comprises an air pump assembly and an air pump assembly, wherein the air pump assembly comprises a bracket, a shell, a piston rod and a rotary power element, the shell is communicated with the bracket, the rotary power element is arranged on the bracket, and one end of the piston rod is arranged on the shell in a sliding way; the air pump assembly comprises an air cylinder barrel and a connecting rod, the air cylinder barrel is communicated with the bracket, one end of the connecting rod is arranged on the air cylinder barrel in a sliding mode, and the rotating power element is used for selectively driving the piston rod or the connecting rod to reciprocate. The multifunctional air compressor drives the piston rod or the connecting rod to reciprocate through rotating the power element, so that the piston rod is arranged on the shell in a sliding way to provide low-pressure and high-flow air flow, or the connecting rod is arranged on the cylinder barrel in a sliding way to provide high-pressure and low-flow air flow, and the multifunctional air compressor is suitable for different pneumatic tools; the multifunctional air compressor is compact in structure, various in functions and wide in application range.

Description

Multifunctional air compressor

Technical Field

The utility model relates to the technical field of air compressors, in particular to a multifunctional air compressor.

Background

The air compressor is an indispensable air source device in various industries such as industrial enterprises, traffic power machines and the like, and is widely used for air source devices of pneumatic tools in various industries. At present, various air compressors appear on the market to be suitable for different pneumatic tools, but deposit multiple air compressors, occupation space is many, moreover, carries inconvenient, can not satisfy customer's demand.

Disclosure of Invention

In view of the above, it is necessary to provide a portable multifunctional air compressor.

The multifunctional air compressor comprises an air pump assembly and an air pump assembly, wherein the air pump assembly comprises a bracket, a shell, a piston rod and a rotating power element, the shell is communicated with the bracket, the rotating power element is arranged on the bracket, and one end of the piston rod is slidably arranged on the shell; the air pump assembly comprises an air cylinder and a connecting rod, the air cylinder is communicated with the bracket, one end of the connecting rod is slidably arranged on the air cylinder, and the rotating power element is used for selectively driving the piston rod or the connecting rod to reciprocate.

In one embodiment, the air pump assembly further comprises a cam, and the connecting rod is pivoted to the cam; the wind pump assembly comprises a turntable, a transmission shaft and an eccentric wheel, wherein the turntable is rotationally connected in the bracket, and the rotary power element is used for driving the turntable to rotate; the transmission shaft is rotatably connected with the support, the transmission shaft penetrates through the turntable, the eccentric wheel and the cam, and the piston rod is pivoted to the eccentric wheel.

In one embodiment, the wind pump assembly further comprises a support bearing mounted to the bracket and a first bearing mounted to the eccentric; the air pump assembly further comprises a second bearing, the second bearing is mounted on the cam, and the transmission shaft sequentially penetrates through the first bearing, the supporting bearing, the turntable and the second bearing.

In one embodiment, a second through hole is formed at one end of the piston rod, and a first through hole is formed at one end of the shell, which is far away from the bracket; the air pump assembly further comprises a first sealing ring, an air inlet valve block and an air outlet valve block, the first sealing ring is sleeved on the piston rod, the side wall of the first sealing ring is abutted to the inner side of the shell, the air inlet valve block is installed at one end of the piston rod, which is provided with the second through hole, the air inlet valve block is used for closing or opening the second through hole, the air outlet valve block is installed at one end of the shell, which is provided with the first through hole, and the air outlet valve block is used for closing or opening the first through hole.

In one embodiment, an air inlet hole is formed in one end, close to the cylinder barrel, of the connecting rod, an air outlet hole is formed in one end, far away from the bracket, of the cylinder barrel, the air pump assembly further comprises an air pump sealing ring, a first valve block, a cylinder cover, a second valve block and an elastic piece, the air pump sealing ring is sleeved on one end, close to the cylinder barrel, of the connecting rod, and the side wall of the air pump sealing ring is abutted to the inner side of the cylinder barrel; the first valve block is arranged at one end of the connecting rod, which is close to the cylinder barrel, and is used for closing or opening the air inlet hole; one end of the cylinder cover is communicated with the cylinder barrel, the second valve block is arranged on the cylinder cover in a sliding mode, the second valve block is used for closing or opening the air outlet, one end of the elastic piece is abutted to the second valve block, and the other end of the elastic piece is abutted to the cylinder cover.

In one embodiment, the wind drum assembly comprises a fixing seat, a wind drum power element and a fan blade, wherein the wind drum power element is installed on the fixing seat and used for driving the fan blade to rotate, and the fan blade is rotationally connected to an air inlet end of the fixing seat.

In one embodiment, the wind-driven generator further comprises an air inlet nozzle and an air guide seat, wherein the air inlet nozzle is communicated with the air inlet end of the fixed seat, and the fan blade is arranged in the air inlet nozzle; the wind guide seat is arranged at the air inlet end of the fixed seat, and one end of the wind-driven element is arranged at one end of the wind guide seat far away from the fan blade.

In one embodiment, the air outlet end of the fixing seat is provided with an air hole; the air drum assembly further comprises an air drum valve block, the air drum valve block is arranged at the air outlet end of the fixing seat, and the air drum valve block is used for closing or opening the air holes.

In one embodiment, the wind-blowing component further comprises an exhaust pipe, wherein the exhaust pipe is communicated with one end of the shell, which is far away from the bracket, and the exhaust pipe is communicated with the air outlet end of the fixing seat; the air pump assembly further comprises a connecting pipe, one end of the connecting pipe is communicated with the cylinder barrel, and the other end of the connecting pipe is communicated with the exhaust pipe.

In one embodiment, the device further comprises a control assembly, the control assembly comprises a control chip and a pressure sensor, the pressure sensor is installed on the exhaust pipe and used for monitoring the air pressure of the exhaust pipe, and the pressure sensor, the wind drum power element and the rotation power element are respectively connected with the control chip through signals.

The multifunctional air compressor drives the piston rod or the connecting rod to reciprocate through rotating the power element, so that the piston rod is arranged on the shell in a sliding way to provide low-pressure and high-flow air flow, or the connecting rod is arranged on the cylinder barrel in a sliding way to provide high-pressure and low-flow air flow, and the multifunctional air compressor is suitable for different pneumatic tools; the multifunctional air compressor is compact in structure, various in functions and wide in application range.

Drawings

Fig. 1 is a schematic structural diagram of a multifunctional air compressor according to an embodiment of the present utility model;

fig. 2 is a sectional view taken along line A-A of the multi-function air compressor of fig. 1;

FIG. 3 is an enlarged view of circle B of FIG. 2;

fig. 4 is an enlarged view of circle C in fig. 2.

The meaning of the reference numerals in the drawings are:

100. multifunctional air compressor;

10. a wind drum assembly; 11. a fixing seat; 110. ventilation holes; 12. a wind-driven power element; 13. a fan blade; 14. an exhaust pipe; 15. an air inlet nozzle; 16. an air guide seat; 17. a wind drum valve block; 20. a wind pump assembly; 21. a bracket; 210. a through hole; 22. a housing; 220. a first through hole; 23. a piston rod; 230. a second through hole; 24. rotating the power element; 25. an intake valve block; 26. an air outlet valve block; 27. a transmission shaft; 28. an eccentric wheel; 29. a first bearing; 30. an air pump assembly; 31. a cylinder barrel; 310. an air outlet hole; 32. a connecting rod; 320. an air inlet hole; 33. a cam; 34. a second bearing; 35. a first valve block; 36. a cylinder head; 37. a second valve block; 38. an elastic member; 39. and (5) connecting pipes.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also 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 may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 4, a multifunctional air compressor 100 according to an embodiment of the utility model includes a wind drum assembly 10, a wind pump assembly 20 and an air pump assembly 30, wherein the wind pump assembly 20 includes a bracket 21, a housing 22, a piston rod 23 and a rotary power element 24, and the air pump assembly 30 includes a cylinder 31 and a connecting rod 32; the multifunctional air compressor 100 drives the piston rod 23 or the connecting rod 32 to reciprocate by rotating the power element 24, so that the piston rod 23 is slidably arranged on the housing 22 to provide low-pressure and high-flow air flow, or the connecting rod 32 is slidably arranged on the cylinder barrel 31 to provide high-pressure and low-flow air flow, and the multifunctional air compressor is suitable for different pneumatic tools.

As shown in fig. 1 and 2, in the present embodiment, the wind drum assembly 10 includes a fixing seat 11, a wind drum power element 12, a fan blade 13 and an exhaust pipe 14, wherein the wind drum power element 12 is mounted on the fixing seat 11, the wind drum power element 12 is used for driving the fan blade 13 to rotate, the fan blade 13 is rotationally connected to an air inlet end of the fixing seat 11, and the exhaust pipe 14 is communicated with an air outlet end of the fixing seat 11; optionally, the air outlet end of the fixing seat 11 is provided with an air hole 110, and the air drum power element 12 is a motor. The air drum assembly 10 further comprises an air inlet nozzle 15 and an air guide seat 16, wherein the air inlet nozzle 15 is communicated with the air inlet end of the fixed seat 11, so that air can be conveniently converged; the fan blades 13 are arranged in the air inlet nozzle 15; the wind guide seat 16 is installed at the air inlet end of the fixed seat 11, the wind guide seat 16 is installed at one end of the fan blade 13, and one end of the wind-driven power element 12 is installed at one end of the wind guide seat 16 far away from the fan blade 13. In an embodiment, the air drum assembly 10 further includes an air drum valve block 17, the air drum valve block 17 is mounted at the air outlet end of the fixing seat 11, and the air drum valve block 17 is used for closing or opening the air holes 110; alternatively, the damper block 17 is a rubber valve block so as to be deformed to close or open the ventilation holes 110. In one embodiment, the pressure generated by the air drum assembly 10 is within 1PSI, enabling a low pressure, high flow air stream.

As shown in fig. 1 to 3, the wind pump assembly 20 includes a bracket 21, a housing 22, a piston rod 23 and a rotary power element 24, the housing 22 is communicated with the bracket 21, the exhaust pipe 14 is communicated with one end of the housing 22 far away from the bracket 21, the rotary power element 24 is mounted on the bracket 21, the rotary power element 24 is used for driving the piston rod 23 to move, and one end of the piston rod 23 is slidably arranged on the housing 22; optionally, a through hole 210 is provided at one end of the bracket 21 for air intake, a first through hole 220 is provided at an end of the housing 22 away from the bracket 21, a second through hole 230 is provided at an end of the piston rod 23, and the rotary power element 24 is a motor. In an embodiment, the wind pump assembly 20 further includes a first sealing ring (not shown), an air inlet valve block 25 and an air outlet valve block 26, the first sealing ring is sleeved on the piston rod 23, the side wall of the first sealing ring abuts against the inner side of the housing 22, the air inlet valve block 25 is mounted on one end of the piston rod 23 provided with the second through hole 230, the air inlet valve block 25 is used for closing or opening the second through hole 230, the air outlet valve block 26 is mounted on one end of the housing 22 provided with the first through hole 220, and the air outlet valve block 26 is used for closing or opening the first through hole 220. Alternatively, the intake valve block 25 and the exhaust valve block 26 are rubber valve blocks for deformation. When inhaling, the piston rod 23 moves away from the air outlet valve block 26, forcing the air inlet valve block 25 away from the piston rod 23, thereby opening the second through hole 230, and at this time, the air outlet valve block 26 closes the first through hole 220; when the air is exhausted, the piston rod 23 moves in a direction approaching the air outlet valve block 26, forcing the air inlet valve block 25 to close the second through hole 230, and at the same time, the air outlet valve block 26 moves away from the housing 22 to open the first through hole 220.

In one embodiment, the wind pump assembly 20 includes a turntable (not shown), a transmission shaft 27, and an eccentric 28, and the turntable is rotatably connected to the support 21, and the rotary power element 24 is used to drive the turntable to rotate; the transmission shaft 27 rotates the connecting bracket 21, the transmission shaft 27 penetrates through the turntable and the eccentric wheel 28, and the piston rod 23 is pivoted on the eccentric wheel 28. Optionally, the turntable is in meshed connection with the output of the rotary power element 24; further, the wind pump assembly 20 further comprises a support bearing (not shown) and a first bearing 29, the support bearing is mounted on the bracket 21, the first bearing 29 is mounted on the eccentric wheel 28, and the transmission shaft 27 sequentially penetrates through the first bearing 29, the support bearing and the turntable; in one embodiment, the first bearing 29 is a one-way bearing. In use, the rotary power element 24 drives the rotary table to rotate, the rotary table drives the transmission shaft 27 to rotate, the transmission shaft 27 drives the eccentric wheel 28 to synchronously rotate, and the eccentric wheel 28 drives the connecting rod 32 to slide along the shell 22. In one embodiment, the wind pump assembly 20 generates a pressure below 30PSI that enables a low pressure, high flow stream.

As shown in fig. 1, 2 and 3, the air pump assembly 30 includes a cylinder barrel 31 and a connecting rod 32, one end of the cylinder barrel 31 is connected to the bracket 21, the other end is connected to the exhaust pipe 14, one end of the connecting rod 32 is slidably disposed in the cylinder barrel 31, and the rotary power member 24 is used for selectively driving the piston rod 23 or the connecting rod 32 to reciprocate, i.e., the connecting rod 32 does not move when the piston rod 23 moves, and the piston rod 23 does not move when the connecting rod 32 moves. Optionally, an air outlet 310 is disposed at an end of the cylinder 31 near the exhaust pipe 14, and an air inlet 320 is disposed at an end of the connecting rod 32 near the cylinder 31. The air pump assembly 30 further comprises a cam 33, the connecting rod 32 is pivoted to the cam 33, and the transmission shaft 27 penetrates through the cam 33; the air pump assembly 30 further includes a second bearing 34, the second bearing 34 is mounted to the cam 33, and the transmission shaft 27 sequentially penetrates through the first bearing 29, the support bearing, the turntable, and the second bearing 34. In use, the rotary power element 24 drives the rotary table to rotate, the rotary table drives the transmission shaft 27 to rotate, the transmission shaft 27 drives the cam 33 to synchronously rotate, and the cam 33 drives the connecting rod 32 to slide along the cylinder barrel 31. Optionally, the second bearing 34 is a one-way bearing, under the action of which the rotary power element 24 selectively drives the piston rod 23 or the connecting rod 32 to move, for example, when the rotary power element 24 rotates clockwise, the transmission shaft 27 drives the eccentric wheel 28 to rotate, and the eccentric wheel 28 drives the piston rod 23 to move; when the rotary power element 24 rotates anticlockwise, the transmission shaft 27 drives the cam 33 to rotate, and the cam 33 drives the connecting rod 32 to move; and vice versa.

In an embodiment, the air pump assembly 30 further includes an air pump sealing ring (not shown), a first valve block 35, a cylinder cover 36, a second valve block 37 and an elastic member 38, the air pump sealing ring is sleeved at one end of the connecting rod 32 near the cylinder 31, and the side wall of the air pump sealing ring abuts against the inner side of the cylinder 31; the first valve block 35 is installed at one end of the connecting rod 32 near the cylinder barrel 31, and the first valve block 35 is used for closing or opening the air inlet hole 320; one end of the cylinder cover 36 is communicated with the cylinder barrel 31, the other end is communicated with the exhaust pipe 14, the second valve block 37 is arranged on the cylinder cover 36 in a sliding mode, the second valve block 37 is used for closing or opening the air outlet hole 310, one end of the elastic piece 38 is abutted against the second valve block 37, and the other end of the elastic piece 38 is abutted against the cylinder cover 36. The air pump assembly 30 further includes a connection pipe 39, one end of the connection pipe 39 being connected to the cylinder head 36, and the other end being connected to the exhaust pipe 14. When in suction, under the action of the elastic piece 38, the second valve block 37 closes the air outlet hole 310, the connecting rod 32 moves away from the second valve block 37, the air flow pushes the first valve block 35 to move away from the connecting rod 32 so as to open the air inlet hole 320, and the air flow enters the cylinder barrel 31 through the air inlet hole 320; when the exhaust is performed, the connecting rod 32 moves towards the direction approaching the second valve block 37, so that air in the cylinder barrel 31 is compressed, the air in the cylinder barrel 31 forces the first valve block 35 to move towards the connecting rod 32 to close the air inlet 320, and as the connecting rod 32 moves continuously, the compressed air in the cylinder barrel 31 forces the second valve block 37 to compress the elastic piece 38, so that the second valve block 37 is far away from the air outlet 310, and the compressed air in the cylinder barrel 31 sequentially passes through the air outlet 310, the cylinder cover 36 and the connecting pipe 39 to enter the exhaust pipe 14. In one embodiment, the pressure generated by the air pump assembly 30 may reach below 120PSI, enabling a high pressure, low flow air stream.

The multifunctional air compressor 100 further comprises a control assembly (not shown), wherein the control assembly comprises a control chip and a pressure sensor, the pressure sensor is mounted on the exhaust pipe 14 and is used for monitoring the air pressure of the exhaust pipe 14, and the pressure sensor, the wind drum power element 12 and the rotation power element 24 are respectively connected with the control chip through signals. When the air flow with low pressure and large flow is required to be inflated, the air drum power element 12 drives the fan blade 13 to rotate, and after the pressure sensor detects that the pressure reaches a preset pressure value, the control chip controls the air drum power element 12 to stop, and meanwhile, the rotary power element 24 is started to drive the piston rod 23 to move; when the small flow of high pressure air is needed for inflation, the rotary power element 24 is started to drive the connecting rod 32 to move.

When the product with the pressure less than 1psi is inflated, such as an air cushion bed, a life buoy and the like, low-pressure and high-flow air flow is needed to be inflated, at the moment, the air drum power element 12 drives the fan blade 13 to rotate, the air flow enters the fixed seat 11 through the air guide seat 16, and then the air drum valve block 17 is forced to deform to open the air holes 110, so that the air flow enters the exhaust pipe 14 from the fixed seat 11; when a product with the pressure of 1psi-20psi is to be inflated, such as a paddle board, a kayak and the like, low-pressure and high-flow air flow is needed to be inflated, at the moment, the air drum power element 12 drives the fan blade 13 to rotate, the control chip controls the air drum power element 12 to stop after detecting that the pressure reaches a preset pressure value (such as 0.8 psi), meanwhile, the rotating power element 24 drives the turntable to rotate, the turntable drives the transmission shaft 27 to synchronously rotate, the transmission shaft 27 drives the eccentric wheel 28 to synchronously rotate, and the eccentric wheel 28 drives the piston rod 23 to reciprocate along the shell 22, so that air suction and air exhaust are realized; when the product with the pressure being more than 20psi is to be inflated, such as automobile tires, bicycle tires, motorcycle tires and the like, small-flow high-pressure air flow is needed to be inflated, at the moment, the rotating power element 24 is directly started, the rotating power element 24 drives the turntable to rotate, the turntable drives the transmission shaft 27 to synchronously rotate, the transmission shaft 27 drives the cam 33 to synchronously rotate, and the cam 33 drives the connecting rod 32 to reciprocate along the cylinder barrel 31, so that air suction and air exhaust are realized. The exhaust pipe 14 is shared by low-pressure high-flow air flow or high-pressure low-flow air flow for discharging, so that the structure is compact.

The multifunctional air compressor 100 drives the piston rod 23 or the connecting rod 32 to reciprocate by rotating the power element 24, so that the piston rod 23 is slidably arranged on the shell 22 to provide low-pressure and high-flow air flow, or the connecting rod 32 is slidably arranged on the cylinder barrel 31 to provide high-pressure and low-flow air flow, and the multifunctional air compressor is applicable to different pneumatic tools; the multifunctional air compressor 100 has compact structure, various functions and wide application range.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The multifunctional air compressor is characterized by comprising an air pump assembly and an air pump assembly, wherein the air pump assembly comprises a bracket, a shell, a piston rod and a rotating power element, the shell is communicated with the bracket, the rotating power element is arranged on the bracket, and one end of the piston rod is slidably arranged on the shell; the air pump assembly comprises an air cylinder and a connecting rod, the air cylinder is communicated with the bracket, one end of the connecting rod is slidably arranged on the air cylinder, and the rotating power element is used for selectively driving the piston rod or the connecting rod to reciprocate.

2. The multi-function air compressor of claim 1, wherein the air pump assembly further comprises a cam, the connecting rod being pivotally connected to the cam; the wind pump assembly comprises a turntable, a transmission shaft and an eccentric wheel, wherein the turntable is rotationally connected in the bracket, and the rotary power element is used for driving the turntable to rotate; the transmission shaft is rotatably connected with the support, the transmission shaft penetrates through the turntable, the eccentric wheel and the cam, and the piston rod is pivoted to the eccentric wheel.

3. The multi-function air compressor of claim 2, wherein the air pump assembly further comprises a support bearing mounted to the bracket and a first bearing mounted to the eccentric; the air pump assembly further comprises a second bearing, the second bearing is mounted on the cam, and the transmission shaft sequentially penetrates through the first bearing, the supporting bearing, the turntable and the second bearing.

4. The multifunctional air compressor according to claim 1, wherein one end of the piston rod is provided with a second through hole, and one end of the shell, which is far away from the bracket, is provided with a first through hole; the air pump assembly further comprises a first sealing ring, an air inlet valve block and an air outlet valve block, the first sealing ring is sleeved on the piston rod, the side wall of the first sealing ring is abutted to the inner side of the shell, the air inlet valve block is installed at one end of the piston rod, which is provided with the second through hole, the air inlet valve block is used for closing or opening the second through hole, the air outlet valve block is installed at one end of the shell, which is provided with the first through hole, and the air outlet valve block is used for closing or opening the first through hole.

5. The multifunctional air compressor of claim 1, wherein an air inlet hole is formed in one end, close to the cylinder barrel, of the connecting rod, an air outlet hole is formed in one end, far away from the bracket, of the cylinder barrel, the air pump assembly further comprises an air pump sealing ring, a first valve block, a cylinder cover, a second valve block and an elastic piece, the air pump sealing ring is sleeved at one end, close to the cylinder barrel, of the connecting rod, and the side wall of the air pump sealing ring abuts against the inner side of the cylinder barrel; the first valve block is arranged at one end of the connecting rod, which is close to the cylinder barrel, and is used for closing or opening the air inlet hole; one end of the cylinder cover is communicated with the cylinder barrel, the second valve block is arranged on the cylinder cover in a sliding mode, the second valve block is used for closing or opening the air outlet, one end of the elastic piece is abutted to the second valve block, and the other end of the elastic piece is abutted to the cylinder cover.

6. The multifunctional air compressor of claim 1, further comprising a wind drum assembly, wherein the wind drum assembly comprises a fixing seat, a wind drum power element and a fan blade, the wind drum power element is mounted on the fixing seat, the wind drum power element is used for driving the fan blade to rotate, and the fan blade is rotationally connected to an air inlet end of the fixing seat.

7. The multifunctional air compressor of claim 6, wherein the wind-blowing component further comprises an air inlet nozzle and an air guide seat, the air inlet nozzle is communicated with the air inlet end of the fixed seat, and the fan blade is arranged in the air inlet nozzle; the wind guide seat is arranged at the air inlet end of the fixed seat, and one end of the wind-driven element is arranged at one end of the wind guide seat far away from the fan blade.

8. The multifunctional air compressor according to claim 6, wherein the air outlet end of the fixing seat is provided with an air vent; the air drum assembly further comprises an air drum valve block, the air drum valve block is arranged at the air outlet end of the fixing seat, and the air drum valve block is used for closing or opening the air holes.

9. The multifunctional air compressor of claim 6, wherein the air drum assembly further comprises an exhaust pipe, the exhaust pipe is communicated with one end of the shell far away from the bracket, and the exhaust pipe is communicated with an air outlet end of the fixing seat; the air pump assembly further comprises a connecting pipe, one end of the connecting pipe is communicated with the cylinder barrel, and the other end of the connecting pipe is communicated with the exhaust pipe.

10. The multifunctional air compressor of claim 9, further comprising a control assembly, wherein the control assembly comprises a control chip and a pressure sensor, the pressure sensor is mounted on the exhaust pipe and is used for monitoring the air pressure of the exhaust pipe, and the pressure sensor, the wind-driven power element and the rotation power element are respectively in signal connection with the control chip.