JP2015094274A - Air compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air compressor capable of remarkably improving an air compressing function by reducing resistance force generated in a reciprocating motion of a piston body in a cylinder and improving pressure-feed speed.SOLUTION: An air compressor includes a main frame 10. The main frame 10 is connected to a cylinder 2 operating a piston body 15. The cylinder 2 has a top wall 21 and a ventilation hole 22 formed on the top wall 21. The main frame 10 is fixed to a power mechanism including a motor 11, and has a weight rotary disc 18 having a crank pin 14. The crank pin 14 is pivoted on the piston body 15. When the motor 11 is operated, the crank pin 14 makes a circumferential motion, a piston head 16 of the piston body 15 is reciprocated in the cylinder 2, and the compressed air in the cylinder 2 is discharged from the ventilation hole 22 of the top wall 21. A cover body 6 having an inner spatial portion 603 is connected to an outer circumferential wall 20 disposed at a position lower than a height of the top wall 21 of the cylinder 2.

Description

  The present invention relates to an air compressor, and in particular, a capacity increasing type air reservoir formed between a cover body and a cylinder in which a cover body having a cross-sectional diameter larger than the cross-sectional diameter of the cylinder is connected to a cylindrical outer circumferential wall of the cylinder. Thus, the present invention relates to an air compressor that reduces the resistance force generated when the piston body reciprocates in a cylinder, increases the pumping speed, and greatly increases the air compression function.

  The present invention relates to an air compressor, and in particular, a capacity increasing type air reservoir formed between a cover body and a cylinder in which a cover body having a cross-sectional diameter larger than the cross-sectional diameter of the cylinder is connected to a cylindrical outer circumferential wall of the cylinder. Thus, the present invention relates to an air compressor that reduces the resistance force generated when the piston body reciprocates in a cylinder, increases the pumping speed, and greatly increases the air compression function.

None

  A first object of the present invention is to reciprocate a cylinder by a piston body, connect a cover body to a cylindrical outer circumferential wall of the cylinder, and the cover body has a first portion provided on the outer periphery of the cylinder, An outer ring air reservoir is formed by the first region and the outer periphery of the cylinder, and the cover body further has a second region provided above the cylinder, and the inner space of the second region is the main air reservoir. Formed, the diameter of the main air reservoir is larger than the diameter of the cylindrical inner circumferential wall of the cylinder, the capacity of the air reservoir of the cover body is increased, and the resistance force generated when the piston body reciprocates in the cylinder is reduced. An object of the present invention is to provide an air compressor that can increase the pumping speed and greatly improve the air compression performance.

  A second object of the present invention is to provide an air compressor in which an installed cover body is integrally formed with a cylinder.

  A third object of the present invention is to provide an air compressor in which a cover body and a top cover are detachably coupled.

  In order to solve the above-mentioned problem, according to a first aspect of the present invention, an air compressor including a main frame, the main frame is connected to a cylinder that operates a piston body, A main wall, a main frame is fixed to a power mechanism including a motor, and includes a weight rotating disk having a crankpin, and the crankpin is the piston. When the motor is operated, the crank pin moves circumferentially, the piston head of the piston body reciprocates in the cylinder, and the compressed air in the cylinder passes through the vent hole in the top wall. A cover body having an inner space is connected to the outer circumferential wall that is discharged and is lower than the height of the top wall of the cylinder, and the first portion of the cover body and the top of the cylinder are connected. An outer ring air reservoir is formed between the outer circumferential wall at a lower position, and the second part of the cover body is at a position higher than the top wall of the cylinder, and the inner diameter of the compression chamber of the cylinder A main air reservoir having a larger inner diameter is formed, and an air compressor is provided in which the main air reservoir, the outer ring air reservoir, and a vent hole formed on the top wall of each cylinder communicate with each other Is done.

  It is preferable that an opening is formed at one end of the inner space of the cover body.

  A side bottom wall extending horizontally outwardly extends from the opening edge of the cylinder, and the other end of the side bottom wall extends upward in parallel to the central axis of the cylinder and has an opening at the upper end. It is preferable to form a cover body having

  On the top of the opening end of the cover body, an outer expansion wall extending outward in all directions at 360 degrees is extended, and a plurality of positioning hooks are arranged in a circle at intervals on the outer expansion wall. A plurality of positioning holes that are completely penetrated to form an arc shape are formed at locations adjacent to the outer circumference of the circular top cover, and the outer side of the positioning hole is slightly recessed and dropped off. A prevention space is formed, a bump projects from the inner wall of the space, a connecting end extends from the lower end of the top cover, an annular groove is formed on the outer peripheral wall of the connecting end, and A hollow column extends downward along the central axis at the connecting end, a spring is fitted into the hollow column, and a gap is formed between the inner peripheral wall of the connecting end and the outer peripheral wall of the hollow column. A layer is formed, and an annular rubber ring is fitted into the annular groove of the connecting end, and the top The positioning hole of the bar is fitted to correspond to the positioning hook formed on the outer expansion wall, and when the top cover is rotated to engage the positioning hook with the bump in the positioning hole, Preferably, the top cover is firmly locked to the cover body by the positioning hook.

  It is preferable that the cover body, the side bottom wall, and the cylinder are integrally formed.

  A ring-shaped concave groove is formed on the top wall adjacent to the vent hole of the cylinder, an O-ring is accommodated in the concave groove, and an engagement is formed on the side top wall of the concave groove. A stopper is provided, and an elastic spring is engaged on the locking seat, and a vent hole formed in the top wall of the cylinder is sealed by the elastic spring, and one end of the spring is elastic. It is preferable that the spring is brought into contact with the other end and the other end is fitted into the hollow column of the top cover.

  Compressed air in the cylinder compresses the spring by pressing the elastic spring through the vent hole formed in the top wall of the cylinder, and compressed air passes through the vent hole to compress the inside of the cover body. It is preferable to flow into the void.

  It is preferable that at least one manifold is formed on the outer circumferential wall of the cover body, and the manifold communicates with the inner space of the cover body.

FIG. 1 is a perspective view showing an air compressor according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing an air compressor according to an embodiment of the present invention. FIG. 3 is a cross-sectional view showing an air compressor according to an embodiment of the present invention. FIG. 4 is a partial cross-sectional view showing the cylinder diameter and cover body diameter of the present invention. FIG. 5 is a schematic diagram showing the inner chamber diameter of the cylinder of FIG. 4 and the air reservoir diameter of the cover body. FIG. 6 is a schematic view showing a state when the top cover and the cover body of the present invention are joined together. FIG. 7 is a partially enlarged view of FIG. FIG. 8 is a schematic diagram showing a flow path when air is sucked from the outside of the air compressor by the backward stroke of the piston body of the present invention. FIG. 9 is a schematic view showing a flow path of air compressed by the forward travel of the piston body of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited thereby.

  Please refer to FIG. As shown in FIG. 3, the air compressor according to an embodiment of the present invention includes a structure in which a cylinder 2 that operates a piston body 15 and a main frame 10 that is fixed to a motor 11 are integrally formed. The main frame 10 is a power mechanism that fixes the air compressor. The power mechanism includes at least a motor 11, a small gear 12 for transmission, a large gear 13, a heavy rotating disk 18 having a crank pin 14, and a heat radiating fan blade 17 for heat radiating. The power mechanism of the air compressor is driven by the motor 11, and the piston head 16 of the piston body 15 reciprocates in the compression chamber 26 of the cylinder 2 to perform a compression operation.

  Please refer to FIGS. The cylinder 2 of the air compressor which concerns on one Embodiment of this invention has the top wall 21 and the circular opening edge 24 which has an opening end. In the present embodiment, first, assuming that the horizontal line of the top wall 21 is L1 and the horizontal line of the circular opening edge 24 is L0 (see FIG. 4), the top cover 51 is separated from the cover body 6. State. A side bottom wall 27 extending outwardly extends from the opening edge 24 of the cylinder 2, and extends upward from the side bottom wall 27 parallel to the axis X in the cylinder 2, and an opening 60 is provided at the upper end. A cylindrical cover body 6 is formed, an inner space 603 for storing compressed air is formed between the cover body 6 and the cylinder 2, and a horizontal line of the opening 60 of the cover body 6 is L2, The top end height H <b> 2 of the cover body 6 is made larger than the top end height H <b> 1 of the cylinder 2. An outer expanding wall 62 extending outward in 360 degrees in all directions is extended on the top portion 61 of the cover body 6, and ring-shaped positioning hooks 63 formed on the outer expanding wall 62 at intervals. A plurality of are formed. The cover body 6 and the cylinder 2 are integrally formed. A vent hole 22 is formed in the top wall 21 of the cylinder 2 described above. The compression chamber 26 of the cylinder 2 and the inner space 603 of the cover body 6 communicate with each other through the vent hole 22. On the top wall 21 adjacent to the vent hole 22, a ring-shaped concave groove that accommodates the O-ring 230. 23 is formed. On the top wall 21 on one side of the recessed groove 23, a locking seat 231 with which the elastic spring 232 is engaged is provided. The top cover 51 having a circular shape may have a plurality of arc-shaped positioning holes 52 formed so as to penetrate completely through locations adjacent to the outer circumference thereof. A slightly recessed drop-off prevention space is formed on the outer side in the positioning hole 52, and bumps 521 project from the inner wall of the space. A connecting end 53 extends from the lower end of the top cover 51. An annular groove 530 is formed on the outer peripheral wall of the connecting end 53. A hollow column 54 extends downward along the central axis at the connection end 53, and a spring 30 is fitted therein, and a gap layer is formed between the inner peripheral wall of the connection end 53 and the outer peripheral wall of the hollow column 54. 55 is formed. The annular rubber ring 93 may be fitted into the annular groove 530 of the connecting end 53 described above.

  The positioning hole 52 of the top cover 51 can be fitted in correspondence with the positioning hook 63 on the outer expansion wall 62. When the top cover 51 is rotated clockwise (see FIGS. 6 and 7), the positioning hole 52 is positioned. The hook 63 is hooked on the bump 521 in the positioning hole 52, and the top cover 51 is locked and coupled to the cover body 6 through the positioning hook 63. The above-described cover body 6 may be a substantially cylindrical housing, and it is preferable to employ a system in which each of the cover body 6 and the cylinder 2 is connected via the central axis X. 4, the housing below the horizontal line L1 of the top wall 21 is the first part 601 of the cover body 6, and the housing above the horizontal line L1 is the second part 602 of the cover body 6. An outer ring air reservoir 6011 is formed between the first part 601 of the body 6 and the outer circumferential wall 20 of the cylinder 2, and the second part 602 of the cover body 6 is located higher than the top wall 21. Since the cover body 6 is formed with a main air reservoir 6012 having an inner diameter D3 larger than the inner diameter D1 and the outer diameter D2 of the cylinder at the second portion 602 (see also FIG. 5), The empty part 603 includes an outer ring air reservoir 6011 and a main air reservoir 6012, and the outer ring air reservoir 6011 and the main air reservoir 6012 are in complete communication. A plurality of manifolds 64 and 65 are formed on the cover body 6 described above. One end of a hose 91 is connected to the manifold 64, and a nozzle (not shown) connected to the inflatable structure is connected to the other end of the hose 91. The manifold 65 is used for installing the pressure gauge 92 (see FIG. 3).

  In the present embodiment, an elastic spring 232 is installed at the location of the vent hole 22 to control the intake / exhaust of air. When the piston body 15 reciprocates in the compression chamber 26 of the cylinder 2 when the elastic body 232 is pressed and the elastic spring 232 is completely brought into close contact with the vent hole 22 (see FIG. 8), Air outside the machine is sucked into the compression chamber 26 in the cylinder 2, and the air in the compression chamber 26 presses the elastic spring 232 through the vent hole 22 formed in the top wall 21 of the cylinder 2 in the forward movement process. Even when each manifold 64, 65 is connected to an object having various properties and functions after the spring 30 is compressed and the compressed air flows into the inner space 603 of the cover body 6 through the vent hole 22. , Previous The spring 30 is limited to the hollow column 54 of the top cover 51 when compressed, its operating state is in the state of FIGS. The main air reservoir 6012 in the inner space 603 of the cover body 6 has a diameter D3 larger than the diameter D1 of the cylindrical inner circumferential wall 29 of the cylinder 2 (see FIGS. 3 and 4). Since the space capacity of the outer ring air reservoir 6011 is larger than the space capacity, the entire space capacity of the inner space 603 of the cover body 6 is much larger than the space capacity of the compression chamber 26 of the cylinder 2. With this configuration, the resistance force generated when the piston body 15 reciprocates is greatly reduced, the pushing speed of the piston body 15 is increased, and the air compression performance can be greatly enhanced.

  As can be seen from the above description, the air compressor of the present invention is used to supply air to the inflatable structure, and the air supply function of the air compressor can be enhanced, so that the time required for air supply is shortened. In addition, the service life of the air compressor can be extended. In the conventional air compressor, since the diameter of the air reservoir of the cover body is made smaller than the diameter of the inner chamber of the cylinder compression chamber, the reaction pressure received by the elastic spring is large, which is received by the forward travel of the piston body. The resistance force is increased, and the compression efficiency of the piston body is greatly reduced. On the contrary, in the present invention, since the diameter D3 of the inner space 603 of the cover body 6 is larger than the diameter D1 of the compression chamber 26 of the cylinder 2, the pressure received when the piston body reciprocates is greatly reduced. The pumping speed is improved, and the air compression performance can be greatly enhanced. Therefore, compared with the prior art, the present invention has a high use effect and an inventive step, and has a sufficiently high industrial utility value.

  While the preferred embodiments of the present invention have been disclosed above, as may be appreciated by those skilled in the art, they are not intended to limit the invention in any way. Various changes and modifications can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the claims of the present invention should be construed broadly including such changes and modifications.

2 Cylinder 6 Cover body 10 Main frame 11 Motor 12 Small gear 13 Large gear 14 Crank pin 15 Piston body 16 Piston head 17 Radiating fan blade 18 Heavy turntable 20 Outer circumferential wall 21 Top wall 22 Vent hole 23 Groove 24 Open edge 26 Compression chamber 27 Side bottom wall 29 Inner circumferential wall 30 Spring 51 Top cover 52 Positioning hole 53 Connection end 54 Hollow column 55 Gap layer 60 Opening 61 Top 62 Outer expansion wall 63 Positioning hook 64 Manifold 65 Hose 91 Hose 92 Pressure gauge 93 Rubber Ring 230 O-ring 231 Locking seat 232 Elastic spring 521 Bump 530 Ring groove 601 First portion 602 Second portion 603 Inner space 6011 Outer ring air reservoir 6012 Main air reservoir

Claims (8)

An air compressor with a main frame,
The main frame is connected to a cylinder that operates a piston body,
The cylinder has a top wall and a vent hole formed on the top wall;
The main frame is fixed to a power mechanism including a motor and has a weight rotating disk having a crank pin. The crank pin is pivotally attached to the piston body, and when the motor is operated, the crank pin moves circumferentially. The piston head of the piston body reciprocates in the cylinder, and the compressed air in the cylinder is discharged from the vent hole in the top wall;
A cover body having an inner space is connected to an outer circumferential wall at a position lower than the top wall height of the cylinder, and an outer portion located at a position lower than the first portion of the cover body and the top wall of the cylinder. An outer ring air reservoir is formed between the circumferential wall and the second portion of the cover body at a position higher than the top wall of the cylinder, and has a larger inner diameter than the inner diameter of the compression chamber of the cylinder. An air reservoir is formed,
An air compressor characterized in that the main air reservoir, the outer ring air reservoir, and vent holes formed on the top walls of the cylinders communicate with each other.   The air compressor according to claim 1, wherein an opening is formed at one end of the inner space of the cover body. A side bottom wall extending horizontally outwardly extends from the opening edge of the cylinder,
The air compressor according to claim 1, wherein the other end of the side bottom wall extends upward in parallel with the central axis of the cylinder, and a cover body having an opening at the upper end is formed. On the top of the opening end of the cover body, an outer expansion wall extending outward in 360 degrees in all directions is extended,
On the outer expansion wall, a plurality of positioning hooks are arranged in a circle at intervals,
A plurality of positioning holes that are completely penetrated and have an arc shape are formed at locations adjacent to the outer circumference of the top cover that has a circular shape, and a slightly recessed drop-off prevention space is formed on the outer side of the positioning hole. Bumps projecting from the inner wall of the space, a connecting end is extended to the lower end of the top cover, an annular groove is formed on the outer peripheral wall of the connecting end, and the connecting end The hollow column extends downward along the central axis, a spring is fitted into the hollow column, and a gap layer is formed between the inner peripheral wall of the connection end and the outer peripheral wall of the hollow column. Formed,
An annular rubber ring is fitted into the annular groove of the connecting end,
The positioning hole of the top cover is fitted in correspondence with the positioning hook formed on the outer expansion wall, and the top cover is rotated to engage the positioning hook with the bump in the positioning hole. The air compressor according to claim 3, wherein the top cover is firmly locked to the cover body by the positioning hook.   The air compressor according to claim 3, wherein the cover body, the side bottom wall, and the cylinder are integrally formed. On the top wall adjacent to the vent hole of the cylinder, a ring-shaped concave groove is formed,
An O-ring is accommodated in the groove, and a locking seat is provided on the side top wall of the groove,
An elastic spring is engaged on the locking seat,
The elastic spring seals a vent hole formed in the top wall of the cylinder,
The air compressor according to claim 4, wherein one end of the spring is abutted on the elastic spring and the other end is fitted into the hollow column of the top cover.   Compressed air in the cylinder compresses the spring by pressing the elastic spring through the vent hole formed in the top wall of the cylinder, and compressed air passes through the vent hole to compress the inside of the cover body. The air compressor according to claim 6, wherein the air compressor flows into the empty portion. At least one manifold is formed on the outer circumferential wall of the cover body,
The air compressor according to claim 1, wherein the manifold communicates with the inner space of the cover body.