Dental electric oil-free air compressor

Abstract

The present invention relates to the technical field of oil-free air compressors, and more specifically, to a dental electric oil-free air compressor, comprising a chassis, a control console, a base, a group of mounting seats and an air storage tank, wherein the chassis is arranged on the base, a plurality of cooling windows are arranged on the chassis, the control console is arranged on the chassis, a group of mounting seats are symmetrically arranged on the base, the air storage tank is arranged on the mounting seat, a support frame is arranged on the base, a plurality of drivers are equidistantly arranged on the support frame, piston boxes are symmetrically arranged on both sides of the driver, an air intake pipe and an exhaust pipe are arranged on the chassis, the air intake pipe is connected to the piston box, the oil-free air compressor also comprises a pressure measuring box, a cooling tank and a pretreatment component, the pretreatment component is arranged on the chassis and connected to the air intake pipe; the filter screen can be prevented from being deeply blocked by impurities and dust, the cleaning effect on the filter screen surface is improved, and the traditional manual regular shutdown cleaning method is broken away.

Description

Technical Field

[0001] The invention relates to the technical field of oil-free air compressors, and more specifically to a dental electric oil-free air compressor. Background Art

[0002] Oil-free air compressor is a kind of air compressor. It is a miniature reciprocating piston compressor with a single-axis motor drive and a symmetrically distributed crank rocker mechanical structure. Existing dental equipment widely uses oil-free air compressors. In order to facilitate the protection of oil-free air compressors, the oil-free air compressors used in dental hospitals are usually equipped with a shell for protection. Existing oil-free air compressors have the following defects:

[0003] Although the existing oil-free air compressor has the function of filtering the inhaled air, a large amount of dust will adhere to the surface of the filter and cause clogging after the air compressor has been working for a long time. The staff needs to stop the machine regularly for manual cleaning, which causes inconvenience and affects the normal use of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a dental electric oil-free air compressor to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A dental electric oil-free air compressor comprises a case, a console, a base, a group of mounting seats and an air storage tank, wherein the case is arranged on the base, a plurality of cooling windows are arranged on the case, the console is arranged on the case, a group of mounting seats are symmetrically arranged on the base, the air storage tank is arranged on the mounting seat, a support frame is arranged on the base, a plurality of drivers are equidistantly arranged on the support frame, piston boxes are symmetrically arranged on both sides of the driver, an air intake pipe and an exhaust pipe are arranged on the case, the air intake pipe is connected to the piston box, the exhaust pipe is connected to the driver, the oil-free air compressor further comprises a pressure measuring box, a cooling tank and a pre-treatment component, the pre-treatment component is arranged on the case and connected to the air intake pipe, and is used for pre-treatment and purification of the air entering the air intake pipe;

[0007] The pretreatment component includes a pretreatment box, a filter, a drive module and a cleaning module. The pretreatment box is arranged on the chassis, the filter is arranged on the pretreatment box, an air connection head is arranged on the pretreatment box, the air connection head is connected to the air intake pipe, the drive module is arranged on the side of the pretreatment box away from the air connection head, and the cleaning module is arranged on the pretreatment box for cleaning dust attached to the filter. During the process of air entering the pretreatment box, the drive module is controlled to work so as to control the cleaning module to work synchronously.

[0008] A further technical solution of the present application: the cleaning module includes a group of sealing plates and a cleaning shovel, the pretreatment box is symmetrically provided with through windows on both sides of the filter, the sealing plates are movably arranged in the through windows and are elastically connected, the cleaning shovel is arranged between a group of the sealing plates, the cleaning shovel is arranged on the side of the filter away from the air inlet, the cleaning shovel and the sealing plates are gap-matched, the sealing plates are connected to a driving module, and the driving module controls the sealing plates to move relative to the pretreatment box when working, a debris discharge port is formed on the pretreatment box, and a debris storage box is arranged on one side of the debris discharge port in the chassis.

[0009] A further technical solution of the present application is as follows: the driving module includes a driving box, a roller, a plurality of rotating blades, a turntable and a push rod; the driving box is arranged on the chassis and is connected to the pretreatment box; the roller is movably arranged on the driving box; a plurality of rotating blades are arranged on the roller; the turntable is movably arranged on the driving box and is coaxially connected to the roller; and the push rod is movably connected between the eccentric position of the turntable and the sealing plate.

[0010] A further technical solution of the present application is as follows: a bellows is arranged between a group of the sealing plates, a plurality of nozzles are arranged equidistantly in the bellows, the bellows is located on the side of the filter away from the cleaning shovel, the driving module also includes an exhaust unit, the exhaust unit is arranged between the driving box and the pretreatment box and is connected to the bellows, and is used to input airflow into the bellows.

[0011] The present application has a further technical solution: the exhaust unit includes a central rotating cylinder and an air cavity, the central rotating cylinder is arranged on the pretreatment box, and the central rotating cylinder is provided with a No. 1 air inlet head, a No. 2 air inlet head and an exhaust head, and the No. 1 air inlet head, the No. 2 air inlet head and the exhaust head are all provided with a one-way valve, the air cavity is formed on a roller, the rotating blade is movably arranged in the air cavity and the two are elastically connected, a positioning ramp is formed on the inner wall of the driving box, the positioning ramp is located on the moving path of the rotating blade, and the rotating blade is displaced relative to the roller when meeting the positioning ramp, the air cavity is connected to the No. 2 air inlet head, and the exhaust head is connected to the bellows through one of the sealing plates.

[0012] The present application has a further technical solution: the oil-free air compressor also includes a cooling module, and the cooling module is arranged in a cooling window formed on the chassis to cool the driver.

[0013] The present application has a further technical solution: the cooling module includes a group of cooling seats and an adjustment unit, a group of the cooling seats are symmetrically and movably arranged in the cooling window, and the adjustment unit is arranged on the chassis and connected to the cooling seats, and is used to adjust the distance between the group of cooling seats.

[0014] A further technical solution of the present application is as follows: the adjustment unit includes a guide seat, a slider, a push arm and a No. 1 electric telescopic rod, the guide seat is arranged on the chassis, the slider is movably arranged in the guide seat, the No. 1 electric telescopic rod is arranged on the guide seat and its movable end is connected to the slider, and the slider is movably connected to the cooling seat through the push arm.

[0015] A further technical solution of the present application is as follows: a lifting seat is movably provided on the base, and a plurality of movable wheels are movably provided on the lifting seat.

[0016] A further technical solution of the present application is as follows: a plurality of No. 2 electric telescopic rods are symmetrically arranged on the base, the lifting seat slides through the base, a connecting head is arranged at the movable end of the No. 2 electric telescopic rod, and the connecting head is movably connected to the lifting seat through the driving arm.

[0017] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0018] The embodiment of the present invention, by setting up a pretreatment component, can utilize a mechanical linkage structure. In the process of the airflow entering the piston box along the drive box, the pretreatment box and the intake pipe, the power of the airflow can be converted into the power of the roller, thereby controlling the cleaning module to clean the dust and impurities remaining on the surface of the filter. At the same time, the exhaust unit can be controlled to work at the same time, input airflow into the bellows and finally spray it into the filter along the nozzle, thereby inputting airflow to the filter along the opposite side of the cleaning shovel, thereby avoiding deep clogging of the filter by impurities and dust, improving the cleaning effect on the filter surface, and getting rid of the traditional manual regular shutdown cleaning method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a dental electric oil-free air compressor in an embodiment of the present invention;

[0020] Figure 2 Schematic diagram of the internal structure of the dental electric oil-free air compressor in an embodiment of the present invention;

[0021] Figure 3 It is a structural schematic diagram of a pretreatment component in a dental electric oil-free air compressor according to an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the pretreatment component in the dental electric oil-free air compressor according to an embodiment of the present invention;

[0023] Figure 5 A partial cross-sectional view of a transfer roller of a dental electric oil-free air compressor according to an embodiment of the present invention;

[0024] Figure 6It is a schematic diagram of the partial structure of the cleaning module in the dental electric oil-free air compressor according to an embodiment of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the heat dissipation structure in the dental electric oil-free air compressor according to an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the structure of the mobile unit in the dental electric oil-free air compressor in an embodiment of the present invention.

[0027] Explanation of the symbols in the schematic diagram:

[0028] 1-chassis, 2-console, 3-base, 4-mounting seat, 5-gas storage tank, 6-support frame, 7-pressure measuring box, 8-cooling tank, 9-intake pipe, 10-exhaust pipe, 11-driver, 12-piston box, 13-pretreatment box, 14-gas connection head, 15-drive box, 16-storage box, 17-sealing plate, 18-turntable, 19-push rod, 20-filter, 21-roller, 22-rotating blade, 23- rotating cylinder, 24- No. 1 air inlet head, 25- No. 2 air inlet head, 26- exhaust head, 27- air cavity, 28- cleaning shovel, 29- bellows, 30- nozzle, 31- cooling seat, 32- push arm, 33- guide seat, 34- slide block, 35- No. 1 electric telescopic rod, 36- adjustment ramp, 37- lifting seat, 38- moving wheel, 39- driving arm, 40- No. 2 electric telescopic rod, 41- cooling window. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0030] See also Figure 1-Figure 8In one embodiment of the present application, a dental electric oil-free air compressor comprises a chassis 1, a console 2, a base 3, a group of mounting seats 4 and an air storage tank 5, wherein the chassis 1 is arranged on the base 3, and a plurality of cooling windows 41 are arranged on the chassis 1, the console 2 is arranged on the chassis 1, a group of mounting seats 4 are symmetrically arranged on the base 3, the air storage tank 5 is arranged on the mounting seat 4, a support frame 6 is arranged on the base 3, a plurality of drivers 11 are equidistantly arranged on the support frame 6, a piston box 12 is symmetrically arranged on both sides of the driver 11, an air intake pipe 9 and an exhaust pipe 10 are arranged on the chassis 1, the air intake pipe 9 is connected to the piston box 12, and the exhaust pipe 10 is connected to the driver 11, and the oil-free air compressor further comprises a pressure measuring box 7, a cooling tank 8 and a pretreatment component, wherein the pretreatment component is arranged on the chassis 1 and is connected to the air intake pipe 9, and is used for pretreatment and purification of the air entering the air intake pipe 9;

[0031] The pretreatment component includes a pretreatment box 13, a filter 20, a drive module and a cleaning module. The pretreatment box 13 is arranged on the chassis 1, the filter 20 is arranged on the pretreatment box 13, and an air connection head 14 is arranged on the pretreatment box 13. The air connection head 14 is connected to the air intake pipe 9. The drive module is arranged on the side of the pretreatment box 13 away from the air connection head 14. The cleaning module is arranged on the pretreatment box 13 and is used to clean the dust attached to the filter 20. When the air enters the pretreatment box 13, the drive module is controlled to work so as to control the cleaning module to work synchronously.

[0032] In a specific case of the present embodiment, the cleaning module includes a group of sealing plates 17 and a cleaning shovel 28. The pretreatment box 13 is symmetrically provided with through windows on both sides of the filter 20. The sealing plates 17 are movably provided on the through windows and are elastically connected therebetween. The cleaning shovel 28 is provided between a group of the sealing plates 17. The cleaning shovel 28 is provided on the side of the filter 20 away from the air inlet 14. The cleaning shovel 28 and the sealing plates 17 are clearance-matched. The sealing plates 17 are connected to a driving module. When the driving module is working, the sealing plates 17 are controlled to move relative to the pretreatment box 13. A debris discharge port is formed on the pretreatment box 13. A debris storage box 16 is provided on one side of the debris discharge port in the chassis 1.

[0033] In another specific case of this embodiment, the driving module includes a driving box 15, a roller 21, a plurality of rotating blades 22, a turntable 18 and a push rod 19. The driving box 15 is set on the chassis 1 and is connected to the pretreatment box 13. The roller 21 is movably set on the driving box 15. The plurality of rotating blades 22 are arranged on the roller 21. The turntable 18 is movably set on the driving box 15 and is coaxially connected to the roller 21. The push rod 19 is movably connected between the eccentric position of the turntable 18 and the sealing plate 17.

[0034] In actual application, the dental equipment is connected to the pressure measuring box 7, and the external air can be sucked in and compressed by controlling the operation of the driver 11 and the piston box 12. The compressed air can be cooled through the cooling tank 8 and finally input into the gas storage tank 5 along the exhaust pipe 10 for storage. In the process of air entering, the air can be filtered through the filter 20, and the dust and impurities left over from the filtration can adhere to the surface of the filter 20. The airflow enters the driving box 15 and collides with the rotating blades 22, driving the rotating blades 22 and the rollers 21 to rotate, thereby controlling the rotation of the turntable 18. Under the action of the push rod 19, the sealing plate 17 can be driven to reciprocate relative to the pretreatment box 13, thereby driving the cleaning shovel 28 to reciprocate, removing the dust on the surface of the filter 20 and discharging it into the impurity storage box 16 along the impurity discharge port, thereby improving the quality of the stored gas and eliminating the need for staff to manually stop the machine and clean the filter 20 regularly.

[0035] See also Figure 1-Figure 6 As another preferred embodiment of the present application, a group of bellows 29 are arranged between the sealing plates 17, and a plurality of nozzles 30 are arranged equidistantly in the bellows 29. The bellows 29 is located on the side of the filter 20 away from the cleaning shovel 28. The driving module also includes an exhaust unit, which is arranged between the driving box 15 and the pretreatment box 13 and is connected to the bellows 29 for inputting airflow into the bellows 29.

[0036] In the present exemplary embodiment, the exhaust unit includes a central rotating cylinder 23 and an air cavity 27, wherein the central rotating cylinder 23 is arranged on the pretreatment box 13, and the central rotating cylinder 23 is provided with a No. 1 air inlet head 24, a No. 2 air inlet head 25 and an exhaust head 26, wherein the No. 1 air inlet head 24, the No. 2 air inlet head 25 and the exhaust head 26 are all provided with a one-way valve, the air cavity 27 is formed on the roller 21, the rotating blade 22 is movably arranged in the air cavity 27 and the two are elastically connected, and a positioning ramp 36 is formed on the inner wall of the driving box 15, wherein the positioning ramp 36 is located on the moving path of the rotating blade 22, and when the rotating blade 22 meets the positioning ramp 36, it is displaced relative to the roller 21, the air cavity 27 is connected with the No. 2 air inlet head 25, and the exhaust head 26 is connected with the bellows 29 through one of the sealing plates 17.

[0037] It should be specially noted that the present embodiment is not limited to the above-mentioned exhaust unit to input air into the bellows 29, and a fan or an air pump may also be used directly instead, which are not listed one by one here.

[0038] When the outside air enters the air inlet pipe 9 along the driving box 15 and the pretreatment box 13 to drive the rotating blades 22 and the rollers 21 to rotate, the rotating blades 22 at different positions can successively collide with the adjustment ramps 36, thereby driving the rotating blades 22 to be squeezed into the air cavity 27. At this time, the air in the air cavity 27 can be input into the intermediate cylinder 23 and finally discharged into the bellows 29 along the exhaust head 26. The air flow is ejected from the nozzle 30, which can prevent dust from clogging the filter 20, thereby causing the cleaning shovel 28 to be unable to remove the dust on the surface of the filter 20, thereby improving the effect of automatic cleaning of the surface of the filter 20.

[0039] See also Figure 1 , Figure 2 as well as Figure 7 As another preferred embodiment of the present application, the oil-free air compressor further includes a cooling module, and the cooling module is disposed in a cooling window formed on the chassis 1 for cooling the driver 11.

[0040] In a specific case of this embodiment, the cooling module includes a group of cooling seats 31 and an adjustment unit, wherein the group of cooling seats 31 are symmetrically and movably arranged in the cooling window, and the adjustment unit is arranged on the chassis 1 and connected to the cooling seats 31, and is used to adjust the distance between the group of cooling seats 31.

[0041] In another specific case of this embodiment, the adjustment unit includes a guide seat 33, a slider 34, a push arm 32 and a No. 1 electric telescopic rod 35. The guide seat 33 is set on the chassis 1, and the slider 34 is movably set in the guide seat 33. The No. 1 electric telescopic rod 35 is set on the guide seat 33 and its movable end is connected to the slider 34. The slider 34 is movably connected to the cooling seat 31 through the push arm 32.

[0042] It should be specially noted that the present embodiment is not limited to the above-mentioned No. 1 electric telescopic rod 35 to adjust the position of the cooling seat 31, and a linear motor or a cylinder may also be used instead, which are not listed one by one here.

[0043] In the process of the console 2 controlling the operation of the entire device, the cooling seat 31 can be controlled to work, thereby inputting cold air flow into the chassis 1 to achieve heat dissipation of the equipment in the chassis 1, and at the same time, the No. 1 electric telescopic rod 35 can be controlled by the console 2 to continuously extend and retract, thereby driving the slider 34 to reciprocate along the guide seat 33. Under the action of the push arm 32, the cooling seat 31 can be driven to reciprocate along the cooling window, thereby achieving cooling work around the equipment in the chassis 1 and ensuring stable operation of the entire device.

[0044] See also Figure 1 , Figure 2 as well as Figure 8As another preferred embodiment of the present application, a lifting seat 37 is movably provided on the base 3 , and a plurality of moving wheels 38 are movably provided on the lifting seat 37 .

[0045] In this exemplary embodiment, a plurality of No. 2 electric telescopic rods 40 are symmetrically arranged on the base 3, and the lifting seat 37 slides through the base 3. A connecting head is provided at the movable end of the No. 2 electric telescopic rod 40, and the connecting head is movably connected to the lifting seat 37 through a driving arm 39.

[0046] In actual application, the entire device can be easily moved using the moving wheels 38, and when the entire device is moved to the working position, the No. 2 electric telescopic rod 40 is controlled to be energized and extended, thereby driving the connecting head to move. Under the action of the driving arm 39, the lifting seat 37 and the moving wheels 38 can be driven to move upward relative to the base 3, so that the moving wheels 38 are separated from the ground and the base 3 is directly in contact with the ground. At this time, the entire device can be placed stably.

[0047] How this application works:

[0048] The entire device can be conveniently moved by using the moving wheels 38, and when the entire device is moved to the working position, the No. 2 electric telescopic rod 40 is controlled to be energized and extended, thereby driving the connecting head to move. Under the action of the driving arm 39, the lifting seat 37 and the moving wheels 38 can be driven to move upward relative to the base 3, so that the moving wheels 38 are separated from the ground and the base 3 is directly in contact with the ground. At this time, the entire device can be stably placed. The dental equipment is connected to the pressure measuring box 7, and the external air can be sucked in and compressed by controlling the operation of the driver 11 and the piston box 12. The compressed air can be cooled through the cooling tank 8 and finally input into the gas storage tank 5 along the exhaust pipe 10 for storage. In the process of air entering, the air can be filtered through the filter 20, and the dust and impurities left over from the filtration can adhere to the surface of the filter 20. The airflow enters the driving box 15 and collides with the rotating blades 22, driving the rotating blades 22 and the rollers 21 to rotate, thereby controlling the rotation of the turntable 18. Under the action of the push rod 19, the sealing plate 17 can be driven to reciprocate relative to the pretreatment box 13, thereby driving the cleaning shovel 28 to reciprocate, removing the dust on the surface of the filter 20 and discharging it into the impurity storage box 16 along the impurity discharge port, thereby improving the quality of the stored gas and eliminating the need for the staff to manually stop the machine and clean the filter 20 regularly. When the outside air enters the air inlet pipe 9 along the driving box 15 and the pretreatment box 13 to drive the rotating blades 22 and the rollers 21 to rotate, the rotating blades 22 at different positions can successively collide with the adjustment ramps 36, thereby driving the rotating blades 22 to be squeezed into the air cavity 27. At this time, the air in the air cavity 27 can be input into the intermediate cylinder 23 and finally discharged into the bellows 29 along the exhaust head 26. The air flow is ejected from the nozzle 30, which can prevent dust from clogging the filter 20, thereby causing the cleaning shovel 28 to be unable to remove the dust on the surface of the filter 20, thereby improving the effect of automatic cleaning of the surface of the filter 20. In the process of the console 2 controlling the operation of the entire device, the cooling seat 31 can be controlled to work, thereby inputting cold air flow into the chassis 1 to achieve heat dissipation of the equipment in the chassis 1, and at the same time, the No. 1 electric telescopic rod 35 can be controlled by the console 2 to continuously extend and retract, thereby driving the slider 34 to reciprocate along the guide seat 33. Under the action of the push arm 32, the cooling seat 31 can be driven to reciprocate along the cooling window, thereby achieving cooling work around the equipment in the chassis 1 and ensuring stable operation of the entire device.

[0049] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dental electric oil-free air compressor, comprising a case, a console, a base, a group of mounting seats and a gas storage tank, wherein the case is arranged on the base, a plurality of cooling windows are arranged on the case, the console is arranged on the case, a group of mounting seats are symmetrically arranged on the base, the gas storage tank is arranged on the mounting seat, a support frame is arranged on the base, a plurality of drivers are equidistantly arranged on the support frame, piston boxes are symmetrically arranged on both sides of the driver, an air intake pipe and an exhaust pipe are arranged on the case, the air intake pipe is connected to the piston box, the exhaust pipe is connected to the driver, and the characteristics are as follows: The oil-free air compressor also includes a pressure measuring box, a cooling tank and a pre-treatment component, wherein the pre-treatment component is arranged on the chassis and is connected to the air intake pipe, and is used to pre-treat and purify the air entering the air intake pipe; The pretreatment component includes a pretreatment box, a filter, a driving module and a cleaning module. The pretreatment box is arranged on the chassis, the filter is arranged on the pretreatment box, an air connection head is arranged on the pretreatment box, the air connection head is connected with the air inlet pipe, the driving module is arranged on the side of the pretreatment box away from the air connection head, and the cleaning module is arranged on the pretreatment box for cleaning dust attached to the filter. When air enters the pretreatment box, the driving module is controlled to work so as to control the cleaning module to work synchronously. The cleaning module includes a group of sealing plates and a cleaning shovel. The pretreatment box is symmetrically provided with through windows on both sides of the filter screen. The sealing plates are movably arranged on the through windows and are elastically connected therebetween. The cleaning shovel is arranged between a group of the sealing plates. The cleaning shovel is arranged on the side of the filter screen away from the air inlet. The cleaning shovel and the sealing plates are clearance-matched. The sealing plates are connected to a driving module. When the driving module is working, the sealing plates are controlled to move relative to the pretreatment box. A debris discharge port is formed on the pretreatment box. A debris storage box is arranged on one side of the debris discharge port in the chassis. The driving module comprises a driving box, a roller, a plurality of rotating blades, a rotating disk and a push rod, wherein the driving box is arranged on the chassis and is connected to the pretreatment box, the roller is movably arranged on the driving box, a plurality of rotating blades are arranged on the roller, the rotating disk is movably arranged on the driving box and is coaxially connected to the roller, and the push rod is movably connected between the eccentric position of the rotating disk and the sealing plate; A bellows is arranged between a group of the sealing plates, a plurality of nozzles are arranged equidistantly in the bellows, the bellows is located on the side of the filter away from the cleaning shovel, the driving module further comprises an exhaust unit, the exhaust unit is arranged between the driving box and the pretreatment box and is connected to the bellows, and is used to input airflow into the bellows; The exhaust unit includes a central rotating cylinder and an air cavity, wherein the central rotating cylinder is arranged on a pretreatment box, and an air inlet head No. 1, an air inlet head No. 2 and an exhaust head are arranged on the central rotating cylinder, and a one-way valve is arranged inside the air inlet head No. 1, the air inlet head No. 2 and the exhaust head, and the air cavity is formed on a roller, and the rotating blade is movably arranged in the air cavity and the two are elastically connected, and an adjustment ramp is formed on the inner wall of the driving box, and the adjustment ramp is located on the moving path of the rotating blade, and the rotating blade is displaced relative to the roller when meeting the adjustment ramp, and the air cavity is connected to the No. 2 air inlet head, and the exhaust head is connected to the bellows through one of the sealing plates.

2. The dental electric oil-free air compressor according to claim 1, characterized in that: The oil-free air compressor also includes a cooling module, which is arranged in a cooling window formed on the chassis and is used to cool the driver.

3. The dental electric oil-free air compressor according to claim 2, characterized in that: The cooling module includes a group of cooling seats and an adjustment unit. The group of cooling seats are symmetrically and movably arranged in the cooling window. The adjustment unit is arranged on the chassis and connected to the cooling seats to adjust the distance between the group of cooling seats.

4. The dental electric oil-free air compressor according to claim 3, characterized in that: The adjustment unit includes a guide seat, a slider, a push arm and a No. 1 electric telescopic rod. The guide seat is arranged on the chassis, the slider is movably arranged in the guide seat, the No. 1 electric telescopic rod is arranged on the guide seat and its movable end is connected to the slider, and the slider is movably connected to the cooling seat through the push arm.

5. The dental electric oil-free air compressor according to claim 1, characterized in that: A lifting seat is movably arranged on the base, and a plurality of moving wheels are movably arranged on the lifting seat.

6. The dental electric oil-free air compressor according to claim 5, characterized in that: A plurality of No. 2 electric telescopic rods are symmetrically arranged on the base, the lifting seat slides through the base, a connecting head is arranged at the movable end of the No. 2 electric telescopic rod, and the connecting head is movably connected to the lifting seat through the driving arm.

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