Air compressor device

Abstract

The present application provides an air compressor device, which comprises an air compressor internal assembly and a box for accommodating the air compressor internal assembly. The air compressor internal assembly comprises a main frame having a plurality of positioning holes, including a first positioning hole and a second positioning hole; a cylinder combined with the main frame and having a gas storage seat communicated therewith; a motor assembled on the main frame, a gear provided at the core end of the motor penetrating through the first positioning hole of the main frame and accommodating the inner bearing seat of the motor in the first positioning hole; and a transmission mechanism assembled in the second positioning hole and driven by the motor to drive a piston body in the cylinder to perform reciprocating compression action to generate compressed air. The motor is extended at the head end and buckled with the main frame by using at least one positioning part, so that the motor can be assembled on the main frame without using screws and can be stably fixed on the main frame.

Description

TECHNICAL FIELD

[0001] The present application is an air compressor device, in particular to a practical technology that can assemble the motor without using screws, stably and firmly set on the main frame, and the entire air compressor internal assembly can be contained in the box. BACKGROUND

[0002] The conventional air compressor includes a main frame, a cylinder combined on the main frame, a motor assembled on the main frame, and a piston body driven by the motor to reciprocate in the cylinder, the piston body reciprocates in the cylinder driven by the motor to complete the gas suction, compression and discharge of the pressurized gas, and the entire air compressor internal assembly can be placed in a box.

[0003] Generally speaking, the motor of the conventional air compressor is mostly locked on the main frame by screws, and when the air compressor is operated for a long time, the screws are easy to fall off or loosen, which reduces the service life, the screws must pass through the main frame body and be locked on the screw hole of the motor shell, and if the tool for locking the screws cannot pass through the main frame body and the surrounding components due to space limitation, the motor cannot be successfully locked on the main frame by screws. The inventor has developed the present application in view of the shortcomings of the known air compressor device. SUMMARY

[0004] The purpose of the present application is to provide an air compressor device to solve the above technical problems, so that the motor can be assembled without using screws and stably and firmly set on the main frame, which can improve the service life of the air compressor device.

[0005] In order to achieve the above purpose, the present application provides an air compressor device, which includes an air compressor internal assembly and a box for containing the air compressor internal assembly, the air compressor internal assembly includes a main frame having a plurality of positioning holes, the plurality of positioning holes include a first positioning hole and a second positioning hole; a cylinder combined on the main frame, a gas storage seat communicated on the cylinder; a motor assembled on the main frame, a gear provided at the core end of the motor penetrating through the first positioning hole of the main frame, and the inner bearing seat of the motor is contained in the first positioning hole; a transmission mechanism assembled in the second positioning hole, which can drive a piston body to reciprocate in the cylinder to produce compressed air, the motor at its head end extends to buckle assemble with the main frame by at least one positioning part, so that the motor can be assembled without using screws and stably and firmly set on the main frame.

[0006] Further, the motor housing is provided with the plurality of positioning portions at the head end thereof, and is provided with hooking portions at the ends of the positioning portions. The main frame is provided with through holes penetrating the main frame from top to bottom corresponding to the plurality of positioning portions. A ring-shaped positioning groove is recessed around the outer periphery of the first positioning hole of the main frame. The plurality of positioning portions penetrate the through holes of the main frame. The motor is rotated so that the hooking portions at the ends of the positioning portions are hooked on the ring-shaped positioning groove. Thus, the motor can be assembled on the main frame without using screws and can be stably fixed on the main frame.

[0007] Further, the motor housing is provided with the plurality of positioning portions at the head end thereof, and is provided with hooking portions at the ends of the positioning portions. The main frame is provided with through holes penetrating the main frame from top to bottom corresponding to the plurality of positioning portions. A ring-shaped positioning groove is recessed around the outer periphery of the first positioning hole of the main frame. The plurality of positioning portions penetrate the through holes of the main frame. The motor is rotated so that the hooking portions at the ends of the positioning portions are hooked on the ring-shaped positioning groove. Thus, the motor can be assembled on the main frame without using screws and can be stably fixed on the main frame.

[0008] Further, the motor housing is provided with the plurality of positioning portions at the head end thereof, and is provided with hooking portions at the ends of the positioning portions. The main frame is provided with through holes penetrating the main frame from top to bottom corresponding to the plurality of positioning portions. A ring-shaped positioning groove is recessed around the outer periphery of the first positioning hole of the main frame. The plurality of positioning portions penetrate the through holes of the main frame. The motor is rotated so that the hooking portions at the ends of the positioning portions are hooked on the ring-shaped positioning groove. Thus, the motor can be assembled on the main frame without using screws and can be stably fixed on the main frame.

[0009] Further, the motor housing is provided with the plurality of positioning portions at the head end thereof, and is provided with hooking portions at the ends of the positioning portions. The main frame is provided with through holes penetrating the main frame from top to bottom corresponding to the plurality of positioning portions. A ring-shaped positioning groove is recessed around the outer periphery of the first positioning hole of the main frame. The plurality of positioning portions penetrate the through holes of the main frame. The motor is rotated so that the hooking portions at the ends of the positioning portions are hooked on the ring-shaped positioning groove. Thus, the motor can be assembled on the main frame without using screws and can be stably fixed on the main frame. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a partial element exploded view of the present application;

[0011] Figure 2 is an assembly action view of the present application;

[0012] Figure 3 is an assembly action plan view of the main frame and the motor of the present application;

[0013] Figure 4 is a partial cross-sectional perspective view of the main frame and the motor of the present application;

[0014] Figure 5 is a schematic view of the air compressor being built in the box body of the present application;

[0015] Figure 6 is a half cross-sectional plan view of the present application. Figure 5

[0016] SYMBOL EXPLANATION

[0017] 10... air compressor

[0018] 1... main frame

[0019] 11... first positioning hole​

[0020] 12 second positioning hole

[0021] 121 bearing

[0022] 13 through hole

[0023] 14 ring-shaped positioning groove

[0024] 2 cylinder

[0025] 3 air reservoir

[0026] 30 manifold

[0027] 31 hose

[0028] 32 pressure gauge

[0029] 4 motor

[0030] 41 inner bearing seat

[0031] 42 head end

[0032] 43 heat dissipation opening

[0033] 45 positioning portion

[0034] 451 hooking portion

[0035] 5 piston body

[0036] 6 transmission mechanism

[0037] 61 pinion

[0038] 62 gear wheel

[0039] 7 box body

[0040] 71 protruding column DETAILED DESCRIPTION

[0041] Please refer to Figures 1 to 4 As shown in the drawings, the air compressor 10 of the present application comprises a main frame 1, a cylinder 2 combined with the main frame 1, a motor 4 assembled on the main frame 1, and a piston body 5 reciprocally moving in the cylinder 2 driven by the motor 4.

[0042] The main frame 1 has a plurality of positioning holes, including a first positioning hole 11 and a second positioning hole 12. A pinion 61 on the core end of the motor 4 extends through the first positioning hole 11, and the inner bearing seat 41 of the motor 4 is accommodated in the first positioning hole 11. A bearing 121 is arranged in the second positioning hole 12. The cylindrical surface of the shell of the motor 4 is provided with two symmetrical and completely penetrating heat dissipation openings 43, so that air flow can circulate between the inside of the shell of the motor 4 and the outside of the shell of the motor 4.

[0043] The cylinder 2 is integrally formed on the main frame 1. A gas storage seat 3 is connected to the cylinder 2. The gas storage seat 3 is provided with at least one manifold 30, which can be provided with a gas output hose 31 and a pressure gauge 32.

[0044] A transmission mechanism 6 includes a large gear 62 with a weight block, which can be engaged with the pinion 61. The large gear 62 is connected to the bearing 121 through a shaft (not shown in the prior art figure). The transmission mechanism 6 can drive the piston body 5 to perform reciprocating compression in the cylinder 2 to generate compressed air.

[0045] Cooperation Figures 1 to 6 As shown, the motor 4 is characterized in that the shell of the motor 4 is provided with a plurality of positioning portions 45 extending from the head end 42. The hooking portions 451 are arranged at the ends of the positioning portions 45. The main frame 1 is provided with through holes 13 penetrating the upper and lower portions of the plurality of positioning portions 45. An annular positioning groove 14 is arranged around the outer periphery of the first positioning hole 11 of the main frame 1. The plurality of positioning portions 45 extend through the through holes 13 of the main frame 1. The motor 4 is rotated so that the hooking portions 451 at the ends of the positioning portions 45 are hooked on the annular positioning groove 14. Thus, the motor 4 can be assembled on the main frame 1 without using screws and can be stably fixed on the main frame 1.

[0046] Please refer to Figure 5 and Figure 6 The schematic diagram of placing the internal assembly of the air compressor 10 in a box 7. The box 7 is provided with a plurality of protrusions 71 on the inner side walls of the upper shell and the lower shell corresponding to the positions of the heat dissipation openings 43 on the cylindrical surface of the shell of the motor 4. When the air compressor 10 is placed in the box 7, the protrusions 71 on the inner side of the box 7 are embedded in the heat dissipation openings 43 on the cylindrical surface of the motor 4. When the air compressor 10 is operating or is subjected to external force impact and overturning, the motor 4 will not be disengaged from the hooking and fixing state between the motor 4 and the main frame 1 due to external force impact and overturning.

[0047] In summary, the present application provides a positioning portion 45 extended from the head end 42 of the motor 4 to buckle assemble with the main frame 1 of the air compressor 10, so that the motor 4 can be assembled without using screws and can be stably fixed on the main frame 1. The internal assembly of the air compressor 10 is installed inside the box body 7. The heat dissipation port 43 provided on the cylindrical shell of the motor 4 can be restrained by the convex column 71 of the upper and lower shells of the box body 7, so that the motor 4 cannot be disengaged from the buckle fixing state between the motor 4 and the main frame 1 due to external force impact and overturning.

Claims

1. An air compressor device, comprising an air compressor internal assembly and a box for accommodating the air compressor internal assembly, the air compressor internal assembly comprising a main frame having a plurality of positioning holes, the plurality of positioning holes comprising a first positioning hole and a second positioning hole; a cylinder combined on the main frame, the cylinder being communicated with a gas storage seat; a motor assembled on the main frame, a gear provided at a core end of the motor penetrating through the first positioning hole of the main frame and accommodating an inner bearing seat of the motor in the first positioning hole; and a transmission mechanism assembled in the second positioning hole, the transmission mechanism being driven by the motor to drive a piston body to perform a reciprocating compression action in the cylinder to generate compressed air, characterized in that: The motor is assembled with the main frame by snap-fitting with the positioning portions at the head end of the motor, so that the motor can be assembled without screws and stably fixed on the main frame. The cylindrical surface of the motor housing is provided with heat dissipation openings, so that air flow can pass through the inside and outside of the motor housing. The box body is provided with a plurality of protrusions on the inner side wall of the upper and lower housings corresponding to the positions of the heat dissipation openings on the cylindrical surface of the motor housing. When the air compressor internal assembly is placed in the box body, the protrusions on the inner side of the box body are embedded in the heat dissipation openings on the cylindrical surface of the motor, so that the motor will not be disengaged from the snap-fitting state with the main frame due to external force impact and overturning during the operation of the air compressor or when the air compressor is subjected to external force impact and overturning.

2. The air compressor machine apparatus of claim 1, wherein: The motor housing is provided with the plurality of positioning portions at the head end thereof, and the hooking portions are arranged at the ends of the positioning portions. The main frame is provided with through holes penetrating the upper and lower portions of the plurality of positioning portions. An annular positioning groove is arranged adjacent to the outer periphery of the first positioning hole of the main frame. The plurality of positioning portions penetrate the through holes on the main frame. The motor is further rotated, so that the hooking portions at the ends of the positioning portions are hooked on the annular positioning groove. Thus, the motor can be assembled without screws and stably fixed on the main frame.

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