KR100586409B1 - hand-powered air pump - Google Patents

Abstract

The present invention relates to a manual air compression pump having a multi-stage compression cylinder to quickly and easily supply high pressure air to a product requiring high pressure air, such as an air tube or an air gun. The efficiency is very low, so the process of recompression is repeated every time. To increase the compression efficiency, the volume and weight are increased, making it difficult to use portablely, and the compression operation takes longer than the power consumed for operation. .

The present invention is to install the outer cylinder vertically on the engine part with a footrest, and to install the intermediate cylinder, the inner cylinder and the center rod to have a multi-stage compression structure in the outer cylinder, the O-ring on the upper piston of the compression section It is installed to move to open air passages when inhaling air and to block backflow of air by blocking air passages during air compression, so that it is configured to be compressed in multiple stages after inflow of external air when pumping operation is performed. It is lightweight and easy to carry, but has a very high compression efficiency, so that compressed air can be supplied quickly and easily.

Description

Hand-powered air pump             

1 is an overall configuration diagram of the present invention,

2 is a partially enlarged cross-sectional view showing the enlarged view of FIG. 1 and shortening the length of the cylinder,

3 (a) to (e) is an operation diagram of the present invention,

4 (a) to (e) are explanatory views of the air inflow and compression process.

Explanation of Drawings

1-Air Gun 158-Minder

10-Scaffolding 160-0-Ring

100-Engine 200-External

102-blocking valve 210-outer cylinder

104-0-ring

105-0-ring seat 230-cylinder cap

106-spring 240-middle piston

108-Airway 224-0-Ring

110-discharge outlet

112-compressed air outlet 250-piston fixture

114-knob 252-piston fixing nut

120-Check Valve 256-Handle Bolt

150-Air-Release Members

152-seat section

300-compression

310-piston 350-piston guide

312-Air passage 400-Intermediate cylinder

314,315-0-ring seat 500-inner cylinder

316,317-0 ring

318-internal air passage

320-air guide shaft

322-0-ring

324-0-ring seat

326-air passage

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air compression pump, and more particularly, to a manual air compression pump having a multi-stage compression cylinder to quickly and easily supply high pressure air to a product requiring high pressure air such as an air gun or an air tube.

Passive air compression pumps are portable, in which a piston is installed in a single cylinder, such as a compression pump that injects compressed air into a tire of a bicycle. Of course, by installing a piston in a large, small diameter cylinder to operate both pistons in reverse to each other, the air introduced into the large diameter cylinder is primarily compressed in the process of entering the small diameter cylinder, the compression thereof Various types have been developed, such as allowing air to be pressurized secondarily by the action of a piston operating in a small diameter cylinder.

However, conventional air compressors are very inconvenient to use because the efficiency of the compression ratio is very low when the portable air compressor is easy to carry out, and the recompression process must be repeated every time they are used. Since it is to be operated by the lever of the volume and weight is increased, it is difficult to use portable, and the compression operation time is longer than the force consumed for the operation, the inconvenience to achieve the purpose of use was great.

The present invention solves the inverse relationship between compression performance and portability, which is a problem of the conventional air compressor described above, and is convenient to carry, but also greatly increases the compression ratio in multiple stages. It is designed to meet the needs of users and to improve the performance of air guns by improving the compression performance in air guns when injecting air.

To this end, the present invention is to install an outer cylinder vertically on the engine part with a footrest, and to install a double cylinder to form an air passage in the outer cylinder to act as a piston, the inner wall of the outer cylinder therein The large piston is installed so as to slide in a sealed state, and the piston and the middle and small cylinders are installed to be lifted together with the large piston so that the external air is introduced and compressed into multiple stages when the reciprocating lifting movement is performed.

In particular, the closing function of the check valve to prevent backflow of the high pressure air in the final high pressure step is completely blocked to prevent the reverse discharge of the high pressure air by not only relying on the O-ring but having a shielding function as the entire shutoff valve. .

The method of using the present invention of the above principle is not different from the prior art, but it is quick, easy and very easy to inject compressed air into the compression chamber of the air gun while further increasing the compression ratio by installing a multi-stage compression cylinder and a piston in the outer cylinder. The large compression ratio can maximize the satisfaction effect of air gun use.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

 The present invention is the engine portion 100 on the lower scaffold 10, the outer cylinder 210 constituting the outer cylinder portion 200 is integrally coupled to the upper surface of the engine portion 100, and in the outer cylinder 210 The piston fixing part 250 is connected to the compression part 300 which is fitted to slide up and down and is provided with a compression cylinder and a piston, and is connected to the compression part 300, the intermediate cylinder 400, and the inner cylinder 500. It is an air compression pump that is installed and is coupled to the external handle (20).

Here, the check valve 120 is composed of a shut-off valve 102 and the seat portion 152 is formed in the engine unit 100, the end of the shut-off valve 102 forms an arrowhead tip shape while the air backing member 150 It is formed in the same inclined surface as the seat portion 152 formed inside the bottom surface of the shut-off valve 102 is in contact with the seat portion 152 while the O-ring seating portion 105 is formed in the front end portion O- It has a closed structure in which the ring 104 is installed.

In addition, one side of the engine unit 100 is formed with a discharge port 110 is connected to the air passage 108 to be opened and closed by the check valve 120 can be connected to the connector (1) of the compression chamber that the compressed air is finally sent. And a compressed air outlet 112 is formed below the outlet 110 so as to artificially discharge unnecessary high pressure air on the air passage 108 by opening and closing a knob 114.

In addition, on the engine unit 100, an air leakage preventing member 150 having a lower end of the intermediate cylinder 400 and the inner cylinder 500 is integrally installed, and the inside of the air leakage preventing member 150 is compressed. Coupling portion 158 is formed to supply high-pressure air by inserting the air guide shaft 320 formed at the bottom of the piston 300 of the portion 300, the reference numeral 160 in the figure is an O-ring.

On the other hand, the outer cylinder portion 200 is coupled to the structure in which the upper surface is closed with the cylinder cap 230, the middle piston 240 sealed the air passage with the O-ring 244 therein.

On the other hand, the compression unit 300, the main piston 310 of the cylindrical structure coupled to the lower end of the intermediate cylinder 400, the main, but the air guide shaft 320 while the central center rod 220 is penetrated And coupled to the installation, the outer periphery of the 310 310 is provided with an outer O-ring seating portion 314 formed with an outer air passage 312 so that the O-ring 316 selectively opens and closes the air passage 312 O-ring 317 is mounted so as to slide up and down so that the inner O-ring seating portion 315 has an inner air passage 318 formed therein to selectively open and close the air passage 318. This structure forms a structure which is slidably moved up and down.

In a similar manner, an O-ring 322 and an O-ring seating portion 324 are formed at the bottom of the air guide shaft 320 to selectively open and close the air passage 326.

In addition, the piston fixing part 250 is coupled with the handle 20 on the upper end of the intermediate cylinder 400, reference numeral 252 in the figure is a piston fixing nut, 256 is a handle fixing bolt.

1 is a block diagram showing the internal coupling structure before the pump is operated.

 FIG. 2 is a partially enlarged cross-sectional view of the enlarged view of FIG. 1 and a shortened cylinder length, in which all of the compression parts 300 are inserted into the outer cylinder part 200 by pressing the handle 20, and the footrest 10 is disposed at the lower end thereof. And a discharge port 112 and a discharge port 110 blocked by the engine unit 100 and the knob 114 are provided.

The air suction path and the compression and injection process in the case of operating the present invention according to the above configuration will be described with reference to FIGS. 3 and 4.

The state diagram before using the air compression pump of this invention is FIG. 3 (a). In this state, in order to suck the outside air into the pump, when the footrest 10 stands on the ground and pulls the handle 20 upward, the compression part 300 which is in contact with the air leakage preventing member 158 as shown in FIG. ) Is lifted up.

At this time, the outside air enters in the direction of the arrow through the air inlet 232 of the cylinder cap 230, as shown in FIG. 4 (a) is sucked into the inner surface of the outer cylinder 210, as the compression unit 300 rises The O-ring 316 is pushed down to the bottom of the O-ring seat 314, so that the sucked air passes through the open air passage 312, as shown in FIG. It is sucked into the whole space a.

Pressing the handle 20 in the state of FIG. 3 (c) where the air suction is completed, the compression unit 300 descends and the air passage 312 of the evacuation stone 310 is formed. The ring 316 is lifted up to close and seal the outer cylinder 210 inner wall and the air passage 312, and the O-ring 317 installed on the inner O-ring seat 315 is lifted to the air cylinder. Since the furnace 318 is opened, the air in the lower space a flows into the space b between the intermediate cylinder 400 and the inner cylinder 500.

Air in the space (b) is filled with the space (c) between the inner cylinder 500 and the center rod 220 through the suction hole 502, and compressed through the compression unit 300 as shown in FIG. Air reaches the air passage 322 of the air guide shaft 320 formed at the bottom of the evacuation stone 310, the O-ring 322 is O-ring seating part 3240 due to the lowering of the compression unit 300 Since the air passage 326 is in an open state because it is pushed up from the center rod 220 is moved to the space (d).

The air in the space d in the center rod 220 passes through the engaging portion 158 of the air escape preventing member 150, and thus the compressed force is stronger than the force of the spring 106. Since the air passage 108 is opened by pushing down the shutoff valve 102, the compressed air is sent to the connector 1 through which the high pressure air is required through the discharge port 110.

Unnecessary high pressure air on the air passage can be discharged by opening the outlet 112 with the knob 114, it is closed during use.

This air intake and compression process is performed by repeating the process of FIGS. 3 (a) to 3 (e).

In the case of using the pump of the present invention according to the above-described configuration and operation, the compression is illustrated as being made in three stages, but is not necessarily limited to three stages of compression, for example, multi-stage compression of four or more than five stages can be applied on the same principle. Being able is self-evident.

The effect obtained by using the above-described configuration of the present invention is not only the rapid compression by the multi-stage, but also the check valve 120 in the engine part 100 has the same inclined surface that the shutoff valve 102 and the seat part 152 are the same. The O-ring 104 is a structure that is in contact with the seal, so that there is no noise during operation and the material of the shutoff valve 102 is not limited to the selection of metal or plastic and has a semi-permanent life.

In addition, the O-ring 316 inserted around the O-ring seating portion 314 of the compression unit 300 is pushed downward in the O-ring seating portion 314 when the compression unit 300 is raised. Since the air cylinder 312 is opened so that the air flows into the space between the outer cylinder 210 and the intermediate cylinder 400, the suction is made, and if the compression unit 300 descends, O The ring 316 is pushed up to the top of the O-ring seat 314 to block the air passage 312, thereby preventing the inhaled air from being discharged backwards, thereby seating the O-ring 316 and the O-ring. Combination of the parts 314 constitute the core of the present invention, this principle can be applied wherever using the principle of opening and closing the air passage by the lifting of the O-ring in the O-ring seat as well as the present invention. It belongs to the technical scope of the present invention.

In the case of using the present invention, the compression ratio is remarkably increased so that a very large air compression effect can be obtained even with a small force, and the portable air compression pump of the present invention is easy to carry in many fields requiring high pressure air or compressed air. It can be used simply and quickly to maximize the use effect.

Claims (5)

In the portable manual pneumatic pump coupled to the outer cylinder and the piston to supply compressed air in the reciprocating motion of the piston, The engine unit 100 on the lower scaffold 10, the outer cylinder 210 constituting the outer cylinder portion 200 integrally coupled to the upper surface of the engine unit 100, and sliding up and down in the outer cylinder 210. Compression unit 300 is installed to be made, and the compression unit 300 is connected to the intermediate cylinder 400 and the piston 200 is made of a piston fixing part 250 is coupled to the handle 20 on the top, The engine unit 100 includes a check valve 120 in which an air passage 108 is formed together with an air discharge preventing member 158 coupled to an upper surface thereof. The check valve 120 is a spring 106. It is made of a shut off valve 102 and the seat portion 152, One side of the engine unit 100 is formed with a discharge port 110 and a discharge port 112 provided with a discharge port 110 and the knob 114 connected to the compressed air passage 108, The outer cylinder portion 200 is provided with a cylinder cap 230 at its upper end, an intermediate piston 240 having an air passage 242 formed therein, and a seat portion 152 at which the check valve 102 is seated. Combination air leakage prevention member 150 is made, The compression unit 300 has a structure in which the large piston 310 and the air guide shaft 320 which are coupled to the lower end of the intermediate cylinder 400 is installed to be elevated along the inner cylinder 500, Manual air compression pump is configured to pressurized air supplied to the discharge port 110 as the piston fixing part 250 and the piston fixing part 250 in the outer cylinder portion 200 reciprocates. The method of claim 1, An outer O-ring seating portion 314 having an outer air passage 312 is provided at the lower periphery of the evacuation stone 310 of the compression unit 300 so that the O-ring 316 selectively opens and closes the air passage 312. O-ring 317 is mounted so as to slide up and down so that the inner O-ring seating portion 315 has an inner air passage 318 formed therein to selectively open and close the air passage 318. Manual air compression pump, characterized in that the sliding movement is mounted up and down. The method of claim 1, The O-ring 322 is mounted on the lower end of the air guide shaft 320 of the compression unit 300 so as to be slidably movable from the O-ring seating portion 324, and is elevated along the inner wall of the inner cylinder 500 while the air passage ( Manual air compression pump, characterized in that configured to selectively open and close 325. The method of claim 1, The tip of the shut-off valve 102 of the check valve 120 is formed at the same inclination angle as the seat portion 152 so that the airtightness is maintained by complete sealing by surface contact when the shut-off valve 102 is seated on the seat portion 152. Manual air compression pump, characterized in that configured to. The method of claim 4, wherein Manual air compression pump, characterized in that the O-ring seating portion 105 is formed at the front end of the shut-off valve 102 is installed O-ring 104 to maintain the airtight.

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