KR200365486Y1 - hand-powered air pump - Google Patents

Abstract

The present invention relates to a manual air compression pump having a multi-stage compression structure. The multi-stage portable unit is designed to accurately hit a target by shortening the compression time and improving the inconvenience of carrying and the inefficiency of the conventional air compressor. To provide an air compression pump.

To this end, the present invention is composed of a combination of a cylinder and a piston of the multi-stage with an outer cylinder, an intermediate cylinder, an inner cylinder, and a center rod, and at each stage, the O-ring is moved slightly so that the compressed air does not flow back. By opening and closing the air passage in the up and down direction of the piston movement to the compression action is made to achieve a multi-stage efficient air compression,

In particular, it has a feature developed as a so-called reverse compressed air pump that allows the piston to stop and the cylinder to reciprocate to perform the compression process.

The use of this paper is no different from the conventional one, but the piston is stationary and the cylinder reciprocates up and down to perform air compression, and another compression structure in the outer cylinder further increases the compression ratio in the compression chamber of the air gun. Since it is injected, it is quick, simple, and the compression ratio can maximize the satisfaction effect of using the air gun.

Description

Hand-powered air pump

The present invention relates to an air compression pump, and more particularly, to a manual air compression pump that is designed to be portable and has a multi-stage compression cylinder to quickly and easily supply high pressure air to a product requiring compressed air such as an air tube or an air gun. .

Manual air compression pump is a portable pump with a piston installed in a single cylinder like a compression pump that injects compressed air into a tire of a bicycle, and a cylinder and a piston are installed together with a compression chamber in the barrel of the air gun to perform air compression every time it is used. In addition, by installing pistons in large and small diameter cylinders, the two pistons are operated in reverse, so that the air introduced into the large diameter cylinder is first compressed in the process of entering the small diameter cylinder. Various types of compressed air are injected into the cage by sending high pressure compressed air to the cage holder while the compressed air is pressurized secondly by the action of a piston operated in a small diameter cylinder. Has been.

However, since the conventional air compressor is easy to carry, the efficiency of the compression ratio is very low. Therefore, it is difficult to supply high-pressure air in a timely manner because it is necessary to repeat the process of recompressing every use. Since the pistons on both sides to be operated should be operated by the lever of the unitary body, the volume and weight are increased, making it difficult to use portablely, and there is a closed end that takes a long time for the compression operation compared to the power consumed for operation.

The present invention solves the inverse relationship between performance and portability, which is a problem of the conventional air compressor described above, so that it is easy to carry and compresses air in multiple stages, thereby greatly increasing the compression ratio. will be.

To this end, the present invention is composed of a combination of a cylinder and a piston of the multi-stage with an outer cylinder, an intermediate cylinder, an inner cylinder, and a center rod, and at each stage, the O-ring is moved slightly so that the compressed air does not flow back. By opening and closing the air passage, the compression action is made in any case in the up and down direction of the piston movement so that the multi-stage efficient air compression is achieved.

In particular, the conventional air pump composed of a cylinder and a piston has a structure in which a cylinder with a large diameter is stopped and a piston with a small diameter is reciprocated up and down. It has a feature developed as a so-called reverse compressed air pump to perform.

The use of this paper is no different from the conventional one, but the piston is stationary and the cylinder reciprocates up and down to perform air compression, and another compression structure in the outer cylinder further increases the compression ratio in the compression chamber of the air gun. Since it is injected, it is quick and simple and it can maximize the satisfaction effect of using air gun with very large compression ratio.

1 is the overall configuration of the present proposal,

Figure 2 is an enlarged configuration drawing of the "a" part of Figure 1,

3 is an enlarged configuration drawing of part “b” of FIG. 1;

4 (a) to (e) is a flow chart for operating the pump in this article,

(A) to (d) is a view showing the flow of air during the operation of the pump in this paper,

6 is a configuration diagram of the guide shaft.

Explanation of symbols on the main parts of the drawing

A-cylinder 210-distributor cap

B-piston part 212-opening ball

C-engine section 214-ball seat

D-check valve 216-0-ring

218-0-ring seat

10-handle 220-distributor

20 bolts-230 bolts

50-footstool 232-distributor

100-outer cylinder

110-fixed 250-inner cylinder

150-lower cap 300-center

152-Guide Shaft

154-O-ring 400-engine section

156-O-ring seat 402-spring

158-Air passage 404-blocking valve

406-air passage

200-middle cylinder 407-tip

408-sheet

409-0-Ring 500-Intake

410-Compressed air inlet 502-Intake air

420-outlet 504-guide groove

422-knob

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

The present invention is a portable air compression pump consisting of a cylinder portion (A) and a piston portion (B) and an engine portion (C) and a check valve (D),

The cylinder portion (A) is composed of an outer cylinder (100), a fixing portion (110) and a central shaft (300) for coupling the handle (10), and the guide shaft (152) below the central shaft (300). It is installed with the O-ring 154,

The piston portion (B) is a distributor cap 210, a distributor 220 and the distribution end 230, the intermediate cylinder 200, the upper cylinder is fitted and fixed around the distribution end 230, the intermediate cylinder ( 200 is formed in the inner cylinder 250, the upper end is fixed to the inner end of the distributor 220 is installed around the central axis 300, the lower end of the central axis 300, the O-ring 154 is The mounted guide shaft 152 is installed.

In the figure, reference numeral 156 denotes an O-ring seat 156, and 158 denotes an air passage.

In addition, the engine portion (C) is composed of a check valve (D), compressed air inlet 410 and outlet 420, but is coupled to the scaffold 50 at its lower end, the intake hole (above the engine portion (C) ( An inlet 500 having a 502 formed therein is provided to support the lower end of the intermediate cylinder 200 and the inner cylinder 250, and the check valve D is supported by a spring 402 on the air passage 406. Although composed of a shutoff valve 404 and a seat portion 408, the shutoff valve 404 is designed to be seated on the seat portion 408 having the same inclined surface while having an arrowhead tip 407, and the tip portion An O-ring 409 is installed at 407 to serve as a sealing function.

In the drawing, reference numeral 422 denotes a knob for opening and closing the outlet 420.

Exemplary drawings Figure 1 is an overall configuration of the present invention, the outer cylinder portion (A) coupled to the handle 10 and the inner piston portion (B), the engine portion (C) and the engine portion fixedly coupled to the footrest 50 Shows the overall configuration of the check valve (D) installed in (C).

FIG. 2 is an enlarged configuration view of the “a” portion of FIG. 1, wherein the outer cylinder 100 is coupled to the handle 10 by a fixing bolt 20, and the intermediate cylinder 200 has a distributor cap 210 at an upper end thereof. ), And the distributor 220 and the dispensing end 230 are combined, in particular, in the dispenser 220, the O-ring 216 is installed to move up and down in the O-ring seat 128 selectively It is installed to open and close the air passage 219.

In the drawings, reference numeral 212 denotes an opening and closing ball, and 214 is a ball seating hole.

FIG. 3 is an enlarged view of the “b” portion of FIG. 1, in which an engine part (C or 400) on the scaffold 50 and an intake port 500 are installed thereon, and a check valve (D) inside the engine part (C). ) Is installed on the air passage 406, the compressed air inlet 410 and the outlet 420 is formed, the upper inlet 500 is shown in a structure provided with an intake hole 502.

In addition, an example is illustrated in which the check valve D includes a shutoff valve 404 and a seat portion 408, an arrowhead tip 407, and an O-ring 409 held by a spring 402.

FIG. 6 is a view showing a configuration in which the guide shaft 152 has an air passage 158 and an O-ring 154 is installed on the O-ring seat 156.

Looking at the air compression process of the present invention of the above configuration will be described in more detail as follows.

4 (a) to (e) show a flow chart for operating the pump in this article.

The state diagram before the operation of the pump is shown in Fig. 4 (a), the length of the pump is the shortest, and it can be seen as the state diagram during storage or transportation.

It is made as in FIG. 4 (b).

That is, when the handle is pulled up while the footrest 50 is stepped on, as shown in FIG.

The outside air flows into the space c in the intermediate cylinder 200 and the inner cylinder 250 through the intake hole 502 of the intake port 500.

Air reaching the distribution port 232, as shown in Figure 5 (b), as the outer cylinder 100 is raised O-ring 216 is pushed up to the upper portion of the O-ring seat 128 Since the air passage 219 is in a closed state, the air passage 219 is pushed up and down the opening and closing ball 212 of the ball seating portion 214 while rising along the passage c 'and the space between the outer cylinder 100 and the central axis 300 ( a ') and is compressed.

The air introduced to the state of FIG. 4 (c) presses the handle 10 and operates in the state of FIG. 4 (d), thereby compressing the compressed air to the engine unit C.

Pressing the knob 10 for compression in the state of FIG. 4 (c) together with the central axis 300

The lower end of the guide shaft 152, the air in the space (a ') in the outer cylinder is the O-ring 216 is lowered to open the air passage 219, Figure 5 As shown in the direction of the arrow (c), it exits through the gap between the rectangular distributor cap 210 and flows into the distribution port 232 through the air passage 219, the space between the central axis 300 and the inner cylinder 250 (d ), Some of which are introduced into the space between the outer cylinder 100 and the intermediate cylinder (200).

Therefore, the compressed air reaches the guide shaft 152 installed at the lower end of the central shaft, so that the O-ring 154 is pushed up to the upper portion of the O-ring seat 156, and thus, through the air passage 158. It is sent to the check valve (D).

That is, as shown in FIG. 5 (d), the high pressure air pushes the shutoff valve 404 along the guide groove 504 to open the air passage 406, and the compressed air is applied to a medium requiring high pressure air. It is supplied to the inlet 410 so that the compressed air is injected into the required air tube or air gun.

When the handle 10 is lifted to repeat the air suction process again, since the high pressure air flowing from the guide groove 504 is lost, the shutoff valve 404 blocks the air passage 406. The airtightness of the air passage 406 is prevented by the air-tightness of the ring 409, and multiple stages of compressed air are formed by the reciprocating motion of the cylinder and the piston.

On the other hand, in the present invention of the above configuration, but shown an example of the three-stage compression in the outer cylinder, the intermediate cylinder and the inner cylinder, the multi-stage compression principle is not limited to only three-stage compression in this paper, if the same principle 4 It is possible to draw up the air compression pump of stage or more than five stages.

When the cylinder is raised relative to the piston according to the present invention of the configuration and operation described above, one end of compression is made, and as the cylinder descends, the air is compressed into two and three stages, so that compressed air is supplied to the required place, and thus the compression effect is multistage It can be used to inject compressed air quickly and conveniently, and because it is designed in multiple stages, the appearance and weight of the pump is light, so that it is easy to carry.

Claims (4)

In the portable air compression pump composed of a cylinder and a piston, A cylinder portion (A) coupled to the handle (10), a piston portion (B) inserted into the cylinder portion (A), and an engine portion to which the foot plate (50) is coupled while being installed below the piston portion (B) ( C) and the check valve (D) formed in the engine portion (A), The cylinder portion (A) is made of a guide shaft 152 is installed, the outer cylinder 100, the central axis 300 and the O-ring 154, The piston portion (B) forms the outer cylinder 200, the inner cylinder 250 and the inlet port 500, the distributor cap 210, the distributor 220 and the dispensing end 230 is installed on the top , The engine portion (C) is provided with a check valve (D) and the inlet 410 and the outlet 420 is connected to the air passage 406 to the check valve (D) is formed, the check valve (D) Portable air compression pump, characterized in that consisting of a shut-off valve 404 and the seat portion 408 is supported by a spring 402 on the air passage (406). The method of claim 1, The shutoff valve 404 constituting the check valve D has a tip portion 407 having an arrowhead shape and is formed in a structure seated on the seat portion 408 having the same inclined surface, and the tip portion 407 is hermetically sealed. Portable air compression pump, characterized in that the holding O-ring (409) is provided. According to claim 1, Distributor 220 is characterized in that the O-ring 216 is installed to move up and down in the O-ring seat 128 to selectively open and close the air passage (219) Portable air compression pump. According to claim 1, O-ring 154 is installed on the guide shaft 152 to move up and down on the O-ring seat 156, characterized in that configured to open and close the air passage 158 selectively Portable air compression pump.