KR101801627B1

KR101801627B1 - Air compressor apparatus

Info

Publication number: KR101801627B1
Application number: KR1020157017326A
Authority: KR
Inventors: 웬-산 초우
Original assignee: 웬-산 초우
Priority date: 2013-02-07
Filing date: 2013-02-07
Publication date: 2017-11-27
Also published as: DK2955381T3; EP2955381A4; PL2955381T3; CN104903579A; JP6169727B2; CN104903579B; EP2955381B1; JP2016505115A; KR20150090227A; WO2014121497A1; EP2955381A1; HUE037832T2

Abstract

The present invention relates to an air compressor device, which allows an air compressor to be maintained within a pressure safety value range during operation without the need for a mechanical pressure relief valve, A duct provided with a sub-axial pressure chamber is provided on the outer wall of the cylinder of the air compressor, and the sub-axial pressure chamber is communicated with the compression chamber of the cylinder but is not communicated with the air storage portion for exhausting , A part of the compressed air enters into the sub-axial pressure chamber when the upper flat surface of the piston head of the air compressor comes into full contact with the upper wall surface of the compression chamber of the cylinder so that the piston body can smooth down- Do not install pressure relief valve separately. It is possible to prevent the air injection operation exceeding the safe pressure value range from occurring.

Description

[0001] AIR COMPRESSOR APPARATUS [0002]

The present invention relates to an air compressor device, which allows the air compressor to be maintained within the pressure safety value range during the operating phase without the need for a mechanical safety valve, resulting in pressure exceeding the tire pressure safety value during tire inflation Protect it.

The inventor has long been engaged in the research and development of small air compressors, and has transformed an air compressor, which requires a large amount of manpower and time and has a complicated structure, to a structure that can be assembled easily and quickly. Among them, a plurality of exhaust ducts are installed in an outlet tube of USPatent No. 7,462,018, and a mechanical pressure safety valve is assembled into one of the exhaust ducts, When the piston body of the compressor moves linearly in the cylinder and is located at the upper dead point, the upper plane of the piston head of the piston body of the patent gun fully contacts the upper wall surface of the compression chamber of the cylinder, Compressed air communicates with the compression chamber of the cylinder and completely enters the outlet tube which can exhaust. However, when used under an inappropriate air injection operation, the pressure in the air compressor is likely to be higher than the preset tire pressure value of the tire to be measured. In this case, the pressure is automatically released by a separate mechanical pressure safety valve . If the mechanical pressure safety valve is used for a long period of time and a trouble such as jamming occurs, the air injection of the tire is supersaturated in the process of injecting the air into the tire, and the risk of the tire tends to pop up.

It is an object of the present invention to provide an air compressor device which allows the air compressor to be maintained within the pressure safety value range during the operating phase without the need for a mechanical pressure relief valve, It is possible to prevent the phenomenon that the safety value is exceeded and the tire to pop out.

The solution of the present invention for achieving the above-mentioned object is as follows:
An air compressor apparatus of the present invention includes a case in which an air compressor for being operated by a power source and generating compressed air is installed therein. The air compressor is configured such that the piston head of the piston body during reciprocating movement The compressed air in the cylinder is pushed into the air storage portion of the air compressor so that the air storage portion is provided with a plurality of ducts which can communicate with the air storage portion, The sub-axial pressure chamber communicates with the compression chamber of the cylinder but does not communicate with the air reservoir for exhaust, and the upper plane of the piston head of the air compressor is aligned with the upper wall of the compression chamber of the cylinder A part of the compressed air enters into the sub-accumulator chamber so that the piston body It is possible not only to make the down stroke movement more smooth, but also to prevent air injection operation exceeding the safety pressure value range even if the air compressor does not have a separate pressure safety valve, and the case is provided with a touch board ; A relief valve including a hollow soft cap is mounted on one duct on the air storage portion, an outer end head is provided at one end of the soft cap, and an outer ring is provided at the other end, and a plurality of projections And a flow channel is formed between the mutually spaced protrusions; Wherein the nut has an opening at one end thereof and the other end of the nut has a through hole having an inner diameter smaller than that of the opening, The soft cap is inserted into the duct and is brought into contact with the soft cap through the end of the through hole of the nut and is coupled into the duct, the outer ring portion of one end of the soft cap abuts the inner wall of the duct, the other end of the soft cap abuts the end of the through hole of the nut, Among the cases, the pusher inside the touch board passes through the nut to correspond to the outer end head of the soft cap. When the touch board is pressed, the soft cap contacts the outer end head of the soft cap of the relief valve, The air reservoir has an action of releasing pressure through the flow grooves and the through holes, and the air reservoir forms an intermediate wall that is very close to and shared with the upper wall of the cylinder at the base, Wherein the air hole communicates the compression chamber of the inner chamber of the cylinder with the inner containment chamber of the air reservoir, And the intermediate wall further has a communication hole communicating with the compression chamber of the inner chamber and the sub-axial pressure chamber, wherein the inner diameter of the compression chamber is larger than the inner diameter of the inner storage chamber, and the inner storage chamber and the sub- And a second intermediate wall directly contacting the first intermediate wall.
In addition, an adjustable regulating valve is provided in the duct, and the regulating valve is threaded in the duct and regulates the internal volume of the enclosed sub-accumulator chamber by rotation.

Further, the valve seat is placed on top of the air hole of the intermediate wall; A rotatable button is provided at the top of a rectangular top cover and a cylindrical column extends downward in the center section of the top cover and a plurality of mutually spaced ring protruding steps extend out of the cylindrical column, A plurality of concave ring-shaped grooves are formed between the cylindrical column and the cylindrical column, the cylindrical column is provided with a bottom edge portion and a pressing portion protruding from the bottom edge portion toward the inner center of the cylindrical column; A plurality of sealing rings being fitted in the ring-shaped grooves on the cylindrical column; The top cover is correspondingly coupled to the air reservoir and rotates the rotation button to securely engage the top cover with the air reservoir; One end of the spring is seated on the valve seat and the other end is in contact with the ring-shaped projecting step on the cylindrical column of the top cover.

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After adopting the above-described structure, in the air compressor apparatus disclosed in the present invention, a duct having a sub-axial pressure chamber is provided on the outer wall of the cylinder of the air compressor, and the sub-axial pressure chamber is communicated with the compression chamber of the cylinder, And a part of the compressed air enters into the sub-axial pressure chamber when the upper flat surface of the piston head of the air compressor comes into contact with the upper end wall surface of the compression chamber of the cylinder so that the piston body can further smooth down- It is possible to prevent the air compressor from causing the air injection operation exceeding the safety pressure value range without separately installing the pressure safety valve.

Compared with the prior art, the air compressor device according to the present invention allows the air compressor to be maintained within the pressure safety value range during the operation phase without installing a mechanical pressure relief valve, so that the pressure exceeding the tire pressure safety value The purpose of protecting it from being generated can be sufficiently achieved; The present invention not only saves production costs, but also makes the downstroke motion of the piston body more smooth.

1 is a three-dimensional view showing a case of an air compressor apparatus according to the present invention.
Fig. 2 is a three-dimensional exploded view showing the air compressor according to the present invention. Fig.
Fig. 3 is a stereolithographic view of the air compressor according to the present invention observed at different angles. Fig.
4 is a cross-sectional view illustrating an air compressor apparatus according to the present invention.
5 is a partial enlarged view of Fig.
6 is an explanatory view showing that the present invention releases pressure by operating a relief valve.
Fig. 7 is an explanatory view showing that the present invention modifies the control valve to change the volume of the sub-accumulator chamber.
Fig. 8 is a cross-sectional view of the present invention observed from another angle. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, an air compressor apparatus according to the present invention includes a case 1, a case 1 having a push switch 11, a touch board 12, and a hollow through- An air compressor is installed in the case 1 and the air compressor includes a cylinder 3 for operating the piston body 25 and a main frame 20 for fixing the motor 21, Are integrally molded.

The main frame 20 can fix the power mechanism of the air compressor. The power mechanism includes a motor 21, a power transmission pinion 22, a gear 23, and a crankpin 24, (28) and a cooling cooling fan (27). The motor 21 drives the power mechanism of the air compressor to cause the piston head 26 of the piston body 25 to make a reciprocating compression movement in the inner chamber 34 of the cylinder 3, The valve seat 41 is pushed to move through the hole 32 and the spring 42 is compressed so that the compressed air can enter the air storage portion 5. [

The air storage unit 5 may be provided with a plurality of ducts 52, 53 and 55 communicating with the air storage unit 5 (refer to FIG. 8), and a hose 91 may be connected to the duct 52 Have; A relief valve (7) can be mounted on the duct (53); A pressure gauge (9) can be mounted on the duct (55). A duct 54 provided with a sub-axial pressure chamber 541 is provided on the outer wall of the cylinder 3 and a compression chamber 33 of the cylinder 3 is connected to the communication hole 35 But the sub-accumulating chamber 541 is not communicated with the inner storage chamber 51 of the air storage portion 5 for exhausting. The inner diameter of the compression chamber 33 is larger than the inner diameter of the inner storage chamber 51 and the second intermediate wall in which the inner storage chamber 51 and the sub axial pressure chamber 541 are in direct contact with each other is disposed. A control valve 8 rotatable by a spiral is provided in the outer opening of the duct 54 so that the volume magnitude state of the sub axial pressure chamber 541 can be adjusted by adjusting the screwing depth of the regulating valve 8 have.

4 to 7, the air reservoir 5 forms an intermediate wall 30 that is very close to and sharing the top wall 31 of the cylinder 3 at the base 50 The intermediate wall 30 is provided with an air hole 32 and a communication hole 35. The air hole 32 is communicated with the compression chamber 33 of the inner chamber 34 in the cylinder 3 and the air storage portion 5 And the communication port 35 communicates the compression chamber 33 of the inner chamber 34 of the cylinder 3 and the sub axial pressure chamber 541 of the duct 54 with each other ; The valve seat 41 may be positioned at the upper end of the air hole 32 of the intermediate wall 30. A rotary button 61 is provided at the upper end of a rectangular top cover 6 (see FIG. 5) and a cylindrical column 62 extends downward in the central section of the upper cover 6, A plurality of mutually spaced annular protrusions 621 extending outwardly from the upper cover 6 and the annular protrusion 621 are formed and a plurality of concave ring grooves 622 are formed between the upper cover 6 and the annular protrusion 621, 62 is formed with a pressing portion 64 having a hem edge portion 63 and protruding from the bottom edge portion 63 toward the inner center of the cylindrical column 62; A plurality of sealing rings 65 may be fitted in the ring-shaped groove 622 on the cylindrical column 62.

2, the top cover 6 may be correspondingly coupled to the air storage unit 5 and the top cover 6 may be coupled to the air storage unit 5 by rotating the rotation button 61, So that there is no fear of loosening or coming off. One end of the spring 42 can be seated on the valve seat 41 and the other end abuts against a ring-shaped protruding step 621 on the cylindrical column 62 of the top cover 6. [

Referring to FIGS. 3 and 5, the relief valve 7 includes a hollow soft cap 71 having an outer end head 711 at one end and an outer ring at the other end, A plurality of protrusions 712 are formed and the flow grooves 713 are formed between the protrusions 712 spaced from each other; Wherein the nut 72 has an opening 721 at one end thereof and the other end of the nut 72 has a through hole 722 having an inner diameter smaller than the opening 721; At this time, the soft cap 71 is inserted into the duct 53 and can be brought into contact with the soft cap 71 at the end of the through hole 722 of the nut 72 and coupled into the duct 53. At this stage, The other end of the soft cap 71 is in contact with the end of the through hole 722 of the nut 725 and the other end of the soft cap 71 is in contact with the end of the through hole 722 of the nut 725, The plunger 121 passes through the nut 72 and corresponds to the outer end head 711 of the soft cap 71. When the touch board 12 is pressed, the outer end of the soft cap 71 of the relief valve 7 The soft cap 51 is deformed by the compression by contacting with the pressure chamber 711 so that the excessive pressure of the air injection is released through the duct 53 equipped with the relief valve 7 Reference). The control valve 8 is screwed into the duct 54 and also adjusts the internal volume of the sub-axial pressure chamber 541 by rotation. A ring-shaped groove 81 having a concave shape is formed on the outer peripheral wall of the control valve 8 And a sealing ring 82 is fitted thereon.

The piston body 25 reciprocates within the inner chamber 34 of the cylinder 3 and is positioned at the upper dead point so that the upper plane 260 of the piston head 26 is located at the upper dead point of the cylinder 3. [ Most of the compressed air is sucked into the valve seat 41 through the air hole 32 provided in the upper wall 31 of the cylinder 3 So that the compressed air is allowed to flow into the inner storage chamber 51 of the air storage part 5 so as to have properties and functions through the respective exhaust ducts 52, Each connected to a different object. However, the compressed air discharged by the cylinder 3 still enters the sub-axial pressure chamber 541 of the duct 54 through the part of the air communication port 35, and the amount of air accommodated in the sub- Thereby preventing the compressor from exceeding the safe pressure value range during the air injection process and allowing the piston body 25 to operate more smoothly when starting the down stroke. The valve seat 41 is still in contact with the pressing portion 64 at the bottom of the cylindrical column 62 of the top cover 6 and is resisted when the valve seat 41 is opened.

Referring to FIGS. 6 and 7, when the internal pressure of the article to be injected with air exceeds the safe pressure value range, the user may operate the relief valve 7 to perform the pressure releasing operation.

The present invention is characterized in that a duct 54 provided with a sub-axial compression chamber 541 is provided outside the cylinder 3 and the sub axial compression chamber 541 is connected to the cylinder The air storage portion 5 communicating with the compression chamber 33 of the cylinder 3 and extending outside the cylinder 3 communicates with the compression chamber 33 of the cylinder 3 through the air hole 32, (541) and the air storage portion (51) are not communicated with each other so that most of the compressed air is discharged to an object to be injected through the exhaust duct mounted on the air storage portion (5) And some of the compressed air remaining in the sub-accumulator chamber 541 remains. Since the air injection operation exceeding the pressure safety value range by the motion of the piston body 25 does not occur due to such a structural design, the pressure safety valve need not be installed separately, and at the same time, the down stroke motion of the piston body 25 So that it can be made more smooth.

It should be understood that the form and style of the present invention should not be limited by the foregoing embodiments and drawings, and any suitable changes and modifications made by those skilled in the art should be considered as not deviating from the scope of the present invention.

1: Case 11: Switch
12: Touch board 121: Pusher
13: through hole 20: main frame
21: motor 22: pinion
23: gear 24: crank pin
25: piston body 26: piston head
260: upper plane 27: cooling fan
28: weight tumbler 3: cylinder
30: Middle wall 31: Upper wall
32: air hole 33: compression chamber
34: inner chamber 35:
41: valve seat 42: spring
5: air storage part 51: internal storage room
52, 53, 54, 55: duct
541: Sub-pressure chamber 6: Top cover
61: rotation button 62: cylindrical column
621: ring-like projecting step 622: ring-shaped groove
63: hem edge portion 64: pressing portion
65: sealing ring 7: relief valve
71: soft cap 711: outer end head
712: projection 713: distribution groove
72: nut 721: opening
722: through hole 8: regulating valve
9: Pressure gauge 91: Hose

Claims

And a case in which an air compressor which is operated by a power source and generates compressed air is installed therein. The air compressor drives the piston head of the piston body to reciprocate in the cylinder during the operation of the motor, so that the compressed air in the cylinder Wherein the air storage unit is provided with a plurality of ducts which can communicate with the air storage unit,
A sub-axial pressure chamber communicates with the compression chamber of the cylinder but is not in communication with the air storage for exhaust, and the upper plane of the piston head of the air compressor is connected to the cylinder A part of the compressed air enters into the sub-axial pressure chamber so that the piston body can smoothly perform the down-stroke movement. In addition, the air compressor does not need to install the pressure safety valve separately, It is possible to prevent the occurrence of the air injection operation exceeding < RTI ID = 0.0 >
The case is provided with a touch board; A relief valve including a hollow soft cap is mounted on one duct on the air storage portion, an outer end head is provided at one end of the soft cap, and an outer ring is provided at the other end, and a plurality of projections And a flow channel is formed between the mutually spaced protrusions; Wherein the nut has an opening at one end thereof and the other end of the nut has a through hole having an inner diameter smaller than that of the opening, The soft cap is inserted into the duct and is brought into contact with the soft cap through the end of the through hole of the nut and is coupled into the duct, the outer ring portion of one end of the soft cap abuts the inner wall of the duct, the other end of the soft cap abuts the end of the through hole of the nut, Among the cases, the pusher inside the touch board passes through the nut to correspond to the outer end head of the soft cap. When the touch board is pressed, the soft cap contacts the outer end head of the soft cap of the relief valve, The excessive pressure of the air injection causes the pressure to be released through the flow grooves and the through holes,
The air hole is formed in the compression chamber of the inner chamber of the cylinder and in the inner storage chamber of the air storage section. Respectively,
And the intermediate wall further includes a communication hole communicating with the compression chamber of the inner chamber and the sub-axial pressure chamber,
The inner diameter of the compression chamber is larger than the inner diameter of the inner storage chamber,
Further comprising a second intermediate wall in which the inner containing chamber and the sub-axial pressure chamber are in direct contact with each other.

delete

The method according to claim 1,
Wherein an adjustable regulating valve is provided in the duct and the regulating valve is threaded in the duct and regulates the inner volume of the enclosed sub-accumulator chamber by rotation.

The method according to claim 1,
The valve seat is placed at the top of the air hole of the intermediate wall; A rotatable button is provided at the top of a rectangular top cover and a cylindrical column extends downward in the central section of the top cover and a plurality of mutually spaced ring protruding steps extend out of the cylindrical column, A plurality of concave ring-shaped grooves are formed between the cylindrical column and the cylindrical column, the cylindrical column is provided with a bottom edge portion and a pressing portion protruding from the bottom edge portion toward the inner center of the cylindrical column; A plurality of sealing rings being fitted in the ring-shaped grooves on the cylindrical column; The top cover is correspondingly coupled to the air reservoir and rotates the rotation button to securely engage the top cover with the air reservoir; Wherein one end of the spring is seated on the valve seat and the other end abuts a ring-shaped protruding step on a cylindrical column of the top cover.