Motor for an air compressor incorporating a positioning device

Abstract

The present application provides a motor combination positioning device of an air compressor, which comprises 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 with the main frame, the cylinder being communicated with a gas storage seat; 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; a transmission mechanism assembled in the second positioning hole, the transmission mechanism being driven by the motor to drive a piston body to perform reciprocating compression action in the cylinder to generate compressed air; and at least one fastener is used to tightly assemble the main frame and the motor, one end of the fastener is buckled on the main frame, and the other end of the fastener is buckled on the motor shell, so that the motor can be assembled without using screws and can be stably and fixedly arranged on the main frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air compressor, in particular to a motor combination positioning device of air compressor, and more particularly to a practical technology that can stably and firmly assemble the motor on the main frame without using screws and can install the air compressor inside the box. BACKGROUND

[0002] The conventional air compressor comprises a main frame, a cylinder combined with 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 intake, compression and discharge of the compressed gas. The internal assembly of the air compressor is installed inside a box.

[0003] Generally, the motor of the conventional air compressor is locked on the main frame by screws. When the air compressor is operated for a long time, the screws are prone 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 holes of the motor shell. If the tool for locking the screws cannot pass through the main frame body and the surrounding components due to space limitations, 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 motor combination positioning device of the conventional air compressor. SUMMARY

[0004] The present application aims to provide a motor combination positioning device of air compressor to solve the above technical problems, so that the motor can be assembled and stably and firmly installed on the main frame without using screws, thereby improving the service life.

[0005] In order to achieve the above-mentioned purpose, the present application provides a motor combination positioning device of air compressor. The internal assembly of the air compressor is installed in the inner space of a box. The air compressor 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, having a gas storage seat communicated therewith; a motor assembled on the main frame, a gear provided at the core end of the motor extending through the first positioning hole of the main frame, and the inner bearing seat of the motor being accommodated in the first positioning hole; a transmission mechanism assembled in the second positioning hole, driven by the motor to drive a piston body to reciprocate in the cylinder to produce compressed air; and a fastener tightly assembling the main frame and the motor, one end of the fastener being buckled on the main frame, and the other end of the fastener being buckled on the motor shell, so that the motor can be assembled and stably and firmly installed on the main frame without using screws.

[0006] Further, the motor is provided with a heat dissipation opening on the circumferential surface of the shell. One end of the fastener is buckled to the main frame, and the other end of the fastener is buckled to the heat dissipation opening of the motor shell, so that the motor can be assembled without screws and can be stably and firmly arranged on the main frame.

[0007] Further, the motor is provided with a heat dissipation opening on the circumferential surface of the shell. One end of the fastener is buckled to the main frame, and the other end of the fastener is buckled to the heat dissipation opening of the motor shell, so that the motor can be assembled without screws and can be stably and firmly arranged on the main frame.

[0008] Further, one end of the fastener is an open end, and the other end is a closed end. The open end and the closed end of the fastener are provided with a bent buckle part at the end.

[0009] Further, the left end outer surface and the right end outer surface of the main frame are provided with a receiving groove and a third positioning hole. The open end of the fastener is buckled to the third positioning hole of the main frame, and the closed end of the fastener is buckled to the heat dissipation opening provided on the circumferential surface of the motor shell.

[0010] Further, the box body is provided with a pressing part on the inner side wall surface. The pressing part is an inner groove provided on the inner side wall surface of the box body. The wall surface of the inner groove limits the fastener between the motor and the main frame, so that the fastener will not be loosened when the air compressor is operated and is accidentally dropped.

[0011] By using the above technical scheme, the main frame and the motor are tightly assembled by at least one fastener, so that the motor can be assembled without screws and can be stably and firmly arranged on the main frame. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a perspective view of the present application;

[0013] Figure 2 is a partial exploded view of the present application;

[0014] Figure 3 is a plan view of the present application;

[0015] Figure 4 is a sectional plan view of the present application;

[0016] Figure 5 is a plan view of the main frame of the present application;

[0017] Figure 6 is a schematic view of the air compressor built in the box body of the present application;

[0018] Figure 7 FIG. 4 is a sectional plan view of the air compressor of the present application, in which the air compressor is built in the case.

[0019] Explanation of symbols:

[0020] 10... air compressor

[0021] 1... main frame

[0022] 11... first positioning hole

[0023] 110... plunger

[0024] 12... second positioning hole

[0025] 121... bearing

[0026] 13... left end outer side surface

[0027] 14... right end outer side surface

[0028] 15... accommodating groove

[0029] 16... third positioning hole

[0030] 2... cylinder

[0031] 3... air reservoir

[0032] 30... manifold

[0033] 31... hose

[0034] 32... pressure gauge

[0035] 4... motor

[0036] 41... inner bearing seat

[0037] 42... front end surface

[0038] 43... recess

[0039] 44... heat dissipation opening

[0040] 45... magnet conducting ring

[0041] 5... piston body

[0042] 51... piston rod

[0043] 6... transmission mechanism

[0044] 61... pinion gear

[0045] 62... large gear

[0046] 7... fastener

[0047] 71... open end

[0048] 710... bending buckle portion

[0049] 72... closed end

[0050] 8... box body

[0051] 81... pressing portion

[0052] 82... inner groove DETAILED DESCRIPTION

[0053] Please refer to Figure 7 , the air compressor 10 in the present invention can be placed in the inner space of a box body 8, and please refer to Figures 1 to 4 , the air compressor 10 of the present invention 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 driven by the motor 4 to reciprocate in the cylinder 2.

[0054] The main frame 1 has a plurality of positioning holes, including a first positioning hole 11 and a second positioning hole 12. The first positioning hole 11 allows a pinion 61 provided at the core end of the motor 4 to pass through and accommodates the inner bearing seat 41 of the motor 4 in the first positioning hole 11. A bearing 121 is installed in the second positioning hole 12. The aforementioned motor 4 is sleeved with a metal magnetic conductive ring 45. Since the magnetic conductive ring 45 has the function of magnetic conduction, it can improve the efficiency of the motor 4 when the motor 4 is working.

[0055] The cylinder 2 can be integrally formed and combined with the main frame 1. The cylinder 2 is connected with a gas storage seat 3. The gas storage seat 3 is provided with at least one manifold 30, which can be installed with a soft tube 31 for outputting gas and a pressure gauge 32.

[0056] A transmission mechanism 6 comprises a large gear 62 with a weight block. The large gear 62 can be engaged with the aforementioned pinion 61. The large gear 62 is connected with the piston rod 51 of the aforementioned piston body 5 through an eccentric curved rod. The transmission mechanism 6 can drive the piston body 5 to perform reciprocating compression action in the aforementioned cylinder 2 to generate compressed air.

[0057] With Figures 2 to 5 , the present invention is characterized in that: at least one fastener 7 is used to tightly assemble the main frame 1 and the motor 4. That is, one end of the fastener 7 is buckled on the aforementioned main frame 1, and the other end of the fastener 7 is buckled on the aforementioned motor 4 shell. In this way, the motor 4 can be assembled without using screws and can be stably and fixedly arranged on the main frame 1. An embodiment of the present invention is shown in Figure 2As shown, the motor 4 is provided with a through hole 44 on each of the two opposite symmetrical sides of the circumferential surface of the shell, which can make the internal and external of the motor 4 shell flow, and the through hole 44 has a heat dissipation function. The front end surface 42 of the motor 4 is provided with a plurality of recesses 43 around the outer periphery of the inner bearing seat 41, and the outer periphery of the first positioning hole 11 on the rear side of the main frame 1 is provided with a plurality of column pins 110 corresponding to the recesses 43. When the motor 4 is positioned on the main frame 1, the plurality of recesses 43 on the front end surface 42 of the motor 4 can be engaged with the plurality of column pins 110 on the main frame 1, which can be used as the positioning of the motor 4, without using screws as positioning, and at the same time, the inner bearing seat 41 of the front end surface 42 of the motor 4 can be accommodated in the first positioning hole 11 on the main frame 1, and the two opposite outer sides of the motor 4 and the main frame 1 are positioned and tightly assembled by the buckle 7, that is, one end of the buckle 7 is buckled in the third positioning hole 16 of the main frame 1, and the other end of the buckle 7 is buckled in the through hole 44 on the circumferential surface of the motor 4 shell, so that the motor 4 can be assembled and stably fixed on the main frame 1 without using screws.

[0058] The embodiment of the present application is described as follows. Figure 2 The one end of the buckle 7 is an open end 71, and the other end is a closed end 72, and the ends of the open end 71 and the closed end 72 of the buckle 7 are provided with a bent buckle part 710; the combination state of the transmission mechanism 6 on the main frame 1 is described, and the front side is the front side facing the transmission mechanism 6 and the cylinder 2 located at the upper end; the left outer side 13 and the right outer side 14 of the main frame 1 are provided with a receiving groove 15 and a third positioning hole 16; the buckle 7 is accommodated in the receiving groove 15 of the main frame 1, the bent buckle part 710 of the open end 71 of the buckle 7 is buckled in the third positioning hole 16 of the main frame 1, and the bent buckle part 710 of the closed end 72 of the buckle 7 is buckled in the through hole 44 on the circumferential surface of the motor 4 shell, so that the motor 4 can be assembled and stably fixed on the main frame 1 without using screws, and because the buckle 7 is accommodated in the receiving groove 15 of the main frame 1, the buckle 7 will not be displaced and loosened. Figure 3

[0059] Please refer to Figures 6 to 7 The air compressor 10 is placed in a box 8, and the buckle 7 is limited between the motor 4 and the main frame 1 by the pressing part 81 provided on the inner side wall of the box 8, that is, the inner groove 82 provided on the inner side wall of the box 8, so that the buckle 7 will not be loosened during the operation of the air compressor 10 and when it is accidentally dropped or subjected to external force impact.

[0060] ​In summary, the present application provides a motor 4 of an air compressor 10 combined with a positioning device, the motor 4 is engaged with a plurality of dowel pins 110 on a main frame 1 by a plurality of recesses 43, and the main frame 1 and the motor 4 are tightly assembled by at least one fastener 7, one end of the fastener 7 is buckled on the main frame 1, and the other end of the fastener 7 is buckled on the motor 4 shell, so that the motor 4 can be assembled without using screws and can be stably and fixedly arranged on the main frame 1.

Claims

1. A motor-mounted positioning device for an air compressor, wherein the internal assembly of the air compressor is placed inside the hollow portion of a housing, the air compressor comprising a main frame having a plurality of positioning holes, the plurality of positioning holes including a first positioning hole and a second positioning hole; a cylinder mounted on the main frame, with an air reservoir connected to the cylinder; a motor assembled on the main frame, a gear located at the end of the motor core extending through the first positioning hole of the main frame and housing the inner bearing seat of the motor within the first positioning hole; and a transmission mechanism assembled in the second positioning hole, which can be driven by the motor to drive a piston in the cylinder to perform a reciprocating compression action to generate compressed air, characterized in that: The main frame and the motor are assembled by at least one fastener, one end of the fastener is buckled on the main frame, and the other end of the fastener is buckled on the shell of the motor, so that the motor can be assembled without using screws and can be stably and fixedly arranged on the main frame, the motor is provided with a heat dissipation opening on the circumferential surface of the shell, one end of the fastener is buckled on the main frame, and the other end of the fastener is buckled on the heat dissipation opening of the shell of the motor, so that the motor can be assembled without using screws and can be stably and fixedly arranged on the main frame, One end of the fastener is an open end, and the other end is a closed end, and the open end and the closed end of the fastener are provided with a bent buckle part at the end, The left end outer side and the right end outer side of the main frame are provided with a containing groove and a third positioning hole, the fastener is contained in the containing groove of the main frame, the bent buckle part of the open end of the fastener is buckled on the third positioning hole of the main frame, and the bent buckle part of the closed end of the fastener is buckled on the heat dissipation opening provided on the circumferential surface of the shell of the motor.

2. The motor combination positioning device of an air compressor of claim 1, wherein: The motor front end face provided with the gear of the core end has a plurality of recesses around the outer periphery of the inner bearing seat, and the first positioning hole at the rear of the main frame is also provided with a plurality of column pins corresponding to the recesses, when the motor is positioned on the main frame, the plurality of recesses of the motor front end face are engaged on the plurality of column pins on the main frame, as the positioning of the motor, and the rotating force when the motor is running is strengthened.

3. The motor combination positioning device of an air compressor of claim 1, wherein: The box body is provided with a pressing part on the inner side wall, the pressing part is an inner groove provided on the inner side wall of the box body, and the wall of the inner groove limits the fastener between the motor and the main frame.

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