JP3090699U - Structure of small air compressor - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a stable module with a simple and practical overall structure, easy maintenance and repair of the assembly, thereby reducing manufacturing costs, and eliminating noise and contaminants. Provided is a structure of a small air compressor capable of providing a compressed air flow. SOLUTION: A motor, a compression cylinder, a lower valve, an upper valve, a silencer, and the like are mainly combined, and a center axis of the motor drives an eccentric cam and a piston crank.
The piston in the compression cylinder is reciprocated up and down.
A pressure-intensifying cylinder that pushes in the gas flow direction, which is fixed on a fixed base on the front cover of the motor. The lower valve is a base device for controlling the direction of gas flow. The upper surface of the suction chamber is an arc-shaped concave hole. The lower valve is provided so that the suction valve can move, and the upper surface of the other corresponding discharge chamber. The small air compressor is provided with an annular stopper that protrudes and presses the discharge valve upward to prevent the gas from flowing backward.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the improvement of the structure of a small air compressor, and more particularly, to the technical field of the structure of a small air compressor capable of providing a stable pressurized airflow while eliminating noise and contaminants.

[0002]

[Prior art]

 An air-powered airbrush, which has been widely used in the past, is a paint auxiliary tool, which uses a device that combines an air compressor and a pigment bottle to evenly eject various pigments. And achieved the purpose of art paint processing. The conventional air compressors used for these are provided with a valve plug with an inverted convex shape in the valve chamber, and a spring with a gas valve installed at the other end at the convex portion. He controlled the airflow direction by holding his mouth.

[0003]

[Problems to be solved by the invention]

 Incidentally, the structure of the above-mentioned conventional small air compressor is not only complicated, but also has a problem that the phenomenon of elastic fatigue often occurs because the spring is reciprocated and pressed. Further, there is a problem that the gas valve cannot completely seal the valve port. The main object of the present invention is to overcome the above-mentioned disadvantages of the prior art, and furthermore, to provide a stable pressurized airflow free of noise and contaminants. It is an object of the present invention to provide an improved structure of a compact air compressor.

[0004]

[Means for Solving the Problems]

 In order to solve the above problem, the invention of claim 1 mainly comprises a combination of a motor, a compression cylinder, a lower valve, an upper valve, a silencer, and the like, and a center axis of the motor drives an eccentric cam and a piston crank. Then, a piston in the compression cylinder is reciprocated up and down, and the compression cylinder is a pressure-intensifying cylinder that pushes in a direction of flowing gas, and is fixed on a fixed base of a cover of the motor, The lower valve is a base device for controlling the direction in which gas flows, and the upper surface of the suction chamber is an arc-shaped concave hole. An annular stopper protrudes from the upper surface to prevent the gas from flowing backward by pressing the discharge valve upward, and the upper valve has a stopper protruding from the bottom edge of the suction port of its base. Corresponding to the suction valve pushed downward, prevents the gas from flowing back, and forms the arc-shaped concave hole at the bottom edge of the discharge port corresponding to the other end of the base in a concave shape. And the discharge valve is provided so as to move, and a discharge pipe is provided above the discharge port of the upper valve, and the upper valve and the lower valve are fixed by several bolts through an airbrush. The silencer is fixed on a table, and a silencer and a tracheal tube are provided in the silencer. The silencer is fixed to an end of the fixed table and connected to an upper end of the silencer. The structure of the small air compressor is characterized in that a pipe is connected to the suction port above the valve to provide a function of quiet suction and a function of removing air contaminants. According to a second aspect of the present invention, in the structure of the small air compressor according to the first aspect, the lower valve hermetically seals an upper edge of the compression cylinder with a washer. The structure of a small air compressor. According to a third aspect of the present invention, in the structure of the small air compressor according to the first aspect, the upper valve is an air flow control base assembled with a washer corresponding to an upper edge of the lower valve. The structure of the small air compressor according to claim 1, wherein: That is, the small air compressor of each of the above-described inventions is mainly configured by combining a motor, a compression cylinder, a lower valve, an upper valve, a silencer, and the like. The shaft of the motor drives the eccentric cam and the piston crank to reciprocate the piston in the compression cylinder up and down. The compression cylinder is a pressure-intensifying cylinder that pushes in the direction of gas flow, which is fixed on a fixed base on the front cover of the motor, and the lower valve is a base device that controls the direction of gas flow. The upper surface of the chamber is an arc-shaped concave hole, is provided so that the suction valve can move, and an annular stopper protrudes from the upper surface of the other corresponding discharge chamber. Pressing prevents the backflow of gas. In addition, a stopper is protrudingly provided at the bottom edge of the suction port of the upper valve to prevent the gas from flowing back in response to the suction valve being pushed downward, and the bottom edge of the discharge port corresponding to the other end of the base. A concave hole having an arc shape is provided in a concave shape so that the discharge valve moves. A silencer and a tube of trachea are provided in the silencer, and the silencer can be connected to the intake port above the upper valve to provide a function of quiet intake and removal of air contaminants.

[0005]

[Embodiment]

 One preferred embodiment of the present invention will be described with reference to the drawings. 1 to 6, the structure of the small air compressor according to the embodiment of the present invention mainly comprises a combination of a motor 10, a compression cylinder 20, a lower valve 30, an upper valve 40, a silencer 50, and the like. The center axis of the motor 10 drives the eccentric cam 11, and the eccentric cam 11 reciprocates the piston crank 12 up and down to reciprocate the piston 21 in the compression cylinder 20 in the vertical axis direction.

The compression cylinder 20 is a pressure-intensifying cylinder that pushes in the direction in which gas flows, and is fixed on a fixed base 15 of a front cover of the motor 10. There is a piston 21 that moves in the axial direction, and the bottom end of the piston 21 is connected to the piston crank 12.

The lower valve 30 is a base device for controlling the direction of gas flow. The upper edge of the compression cylinder 20 is hermetically joined by a washer 28, and the upper surface of the suction chamber 32 is formed by an arc-shaped concave hole 31. The suction valve 43 is provided so as to be movable, and a convex stopper 36 is provided on the upper surface of the other corresponding discharge chamber 35. By pressing the discharge valve 33 upward, only one direction is provided. Prevents gas from flowing backwards as it flows.

The upper valve 40 is an airflow control base assembled with a washer 38 so as to correspond to the upper part of the lower valve 30. A stopper 42 protrudes from the bottom edge of the suction port 41 of the base and is pushed downward. In correspondence with the suction valve 43, the gas is prevented from flowing backward, and a concave hole 46 having an arc shape is provided in the bottom edge of the discharge port 47 corresponding to the other end of the base so that the discharge valve 33 moves. It is provided as follows. By providing a discharge pipe 48 above the discharge port 47 to provide a stable pressurized airflow to the airbrush, the upper valve 40 and the lower valve 30 are fixed on the fixed base 15 by several bolts 49. You.

In the silencer 50, a silencer 51 and a tubular body of a trachea 53 are provided, and the silencer 50 is fixed to the end side of the fixing base 15, and a suction pipe 55 connected to the upper end of the silencer 50. , Connected to the suction port 41 above the upper valve 40, it is possible to provide a function of quiet suction and removal of air contaminants.

The features of the structure of the embodiment of the present invention and the specific usage thereof are as follows. The structure of the small air compressor according to the present invention eliminates noise and contaminants in the trachea 53 by the silencing cotton 51 in the silencer 50. When the compression cylinder 20 assumes the suction state (shown in FIG. 4), when the piston crank 12 and the piston 21 move downward, the middle air chamber 25 assumes a negative pressure state, and the suction valve 43 receives a force. In order to enter the arc-shaped concave hole 31 of the lower valve 30 downward and not to push the stopper 42 of the upper valve 40 upward, the middle air chamber 25 is in the suction state. Then, the discharge valve 33 receives the downward force and presses the annular stopper 36 of the lower valve 30 in a hermetically closed state, thereby preventing a situation in which the gas flows inappropriately to the discharge port 47 in the suction state. When the compression cylinder 20 indicates the discharge state (shown in FIG. 5), the piston crank 12 and the piston 21 are pushed upward in conjunction with the upward, and the compressed gas in the air chamber 25 is upwardly sucked. The suction valve 43 pushes up the suction valve 43 and the discharge valve 33 to completely seal the stopper 42 of the upper valve 40 upward, thereby avoiding a situation in which gas flows backward. The discharge valve 33 receives the upward force and enters the arc-shaped concave hole 46 of the upper valve 40, so that the compressed pressurized airflow is discharged from the discharge pipe 48 in one direction, and then sent to the airbrush device. Accordingly, the present invention can provide a stable pressurized airflow by removing noise and foreign substances, and can enhance the use function of the ejection pen.

As described above, the present invention has been disclosed in a preferred embodiment. However, as long as the technical idea of the present invention is not impaired, the present invention is not limited to the embodiments, and a mere design change for those skilled in the art can be made. Is included in the present invention.

[0012]

[Effect of the invention]

 According to the structure of the small air compressor of the present invention, the overall structure is simple and practical, and the maintenance and repair of the assembly is easy, so that the production cost can be reduced. This has the effect of removing noise and contaminants and obtaining a stable pressurized airflow.

[0013]

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a partial structure of the air compressor according to the embodiment of the present invention;

FIG. 3 is a sectional view of the upper and lower valves of FIG. 2;

FIG. 4 is a cross-sectional view showing a use state of the embodiment of the present invention, in which a piston crank is linked downward to bring an air chamber into a suction state.

FIG. 5 is another cross-sectional view showing a use state of the embodiment of the present invention, in which a piston crank is moved upward to put the air chamber into a discharge state.

FIG. 6 is a perspective view showing another embodiment according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Motor 11 Eccentric cam 12 Piston crank 15 Fixed base 20 Compression cylinder 21 Piston 25 Air chamber 28 Washer 30 Lower valve 31 Concave hole 32 Suction chamber 33 Discharge valve 35 Discharge chamber 36 Stopper 38 Washer 40 Upper valve 41 Suction port 42 Stopper 43 Suction Valve 46 Concave hole 47 Discharge port 48 Discharge pipe 49 Bolt 50 Silencer 51 Silencer cotton 53 Trachea 55 Suction pipe

Claims (3)

[Utility model registration claims] 1. A motor, a compression cylinder, a lower valve, an upper valve, a silencer, and the like are mainly combined, and a center axis of the motor drives an eccentric cam and a piston crank to move a piston in the compression cylinder up and down. By reciprocating, the compression cylinder is a pressure-intensifying cylinder that pushes in the direction of gas flow, which is fixed on a fixed base of the motor cover, and the lower valve controls the direction of gas flow. A base device, the upper surface of the suction chamber is an arc-shaped concave hole,
The suction valve is provided so as to be movable, and an annular stopper is provided protruding on the upper surface of the other corresponding discharge chamber to prevent the gas from flowing backward by pressing the discharge valve upward, The upper valve is provided with a stopper protruding from the bottom edge of the suction port of the base, corresponding to the suction valve pressed down, preventing the gas from flowing back, and corresponding to the other end of the base. The concave hole having a circular arc shape is provided in the bottom edge of the discharge port in a concave shape, and the discharge valve is provided so as to move,
A discharge pipe is provided above the discharge port of the upper valve, and the upper valve and the lower valve are fixed on the fixed base with several bolts through an airbrush. A cylinder of cotton and trachea is provided, the silencer is fixed to the end side of the fixing base, and a suction pipe connected to the upper end of the silencer is connected to a suction port at the upper part of the upper valve, so that it is quiet. The structure of a small air compressor characterized by being able to provide a function of removing inhalation and air contaminants. 2. The small air compressor according to claim 1, wherein said lower valve is configured to hermetically join an upper edge of said compression cylinder with a washer. Air compressor structure. 3. The structure of the small air compressor according to claim 1, wherein the upper valve is an airflow control base assembled with a washer corresponding to an upper edge of the lower valve. The improved structure of the small air compressor according to claim 1.