KR920001336Y1 - Air-pump - Google Patents

Abstract

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Description

Air pump

1 is an exploded perspective view of the present article.

2 is a perspective view of the assembly state of the present article.

(A) and (b) of FIG. 3 are sectional views of the operation state of the present invention, (a) is a state in which air sucked into the cylinder is discharged, and (b) is a state in which air is sucked into the cylinder.

4 is a cross-sectional view taken along the line A-A 'in FIG. 3 (a).

Figure 5 is an enlarged cross-sectional view showing the operating state of the pecon head (a) (b) is the main part of the present invention.

* Explanation of symbols for main parts of the drawings

1: motor 3: spherical case

4: air suction chamber 5a, 5b: suction passage

6a, 6b: Filterer 7: cylinder

7 ': sleeve tube 8: outlet hole

10: circular opening and closing plate 11: spring

12: sealing cap 13: round crank

14: piston rod 15: piston head

This paper relates to an air pump for pumping air as a soft piston head reciprocating into a cylinder according to the cranking operation. In particular, this paper is directed to an eccentric crank pin of a circular crank which is pressed against a rotating shaft of a motor. It installs a piston device so that it can pump a large amount of air per unit time compared to the air pumping device for the conventional copper plate and at the same time can supply air without noise, and is formed at the lower side of the cylinder device. The filter is embedded in the suction passage of the air suction chamber. This filter filters foreign substances such as dust contained in the air sucked into the air suction chamber so that only clean air is sucked in. Use of air pump to prevent damage and to pump only clean air When it is downsized to supply air to the aquarium, the effect of supplying oxygen to the water without contaminating the water of the aquarium with dust, etc., or the waste water purification effect in the case of the large-scale purification of the waste water by aeration. The emphasis is on enabling it.

In general, a power-driven air pump used in an aquarium or the like can be classified into pumping air by vibrating a diaphragm and pumping and supplying air by rotating a rotary blade. Both by and by the rotational operation of the rotor blades have not only a noise-producing defect, but also because of the inability to filter this substance such as dust contained in the pumped air, it is possible to pump and supply turbid air containing this substance. There was a flaw.

Therefore, this proposal is intended to solve the above-mentioned shortcomings, and the piston device is installed on the circular crank rotated by the motor, but the piston head reciprocating in the airtight state inside the cylinder device, that is, the cylinder device, is made of a soft material. In the configuration of the piston head in the In the discharge operation, the piston head is brought into close contact with the inner circumference of the cylinder device by the compressive force that compresses the air sucked into the cylinder device so that the discharge force of the air becomes firm. In the suction operation, the piston head is retracted by the air pressure difference between the inside of the cylinder device and the air suction chamber so that the air in the air suction chamber can be easily sucked into the cylinder device. The air pumped and supplied by the reciprocating operation of the piston head is cleanly purified air, while foreign matters such as dust contained in the surrogate sucked by installing the float in the suction passage to be sucked into the air suction chamber are sucked into the air suction chamber. Bay can be supplied to the source of supply. More specifically according to the following:

A spherical case 3 is attached to one side of a conventional motor 1 to form an air suction chamber 4 sealed with a cover plate 2, and an inlet hole 5 'is provided on both sides of the inner bottom of the spherical case 3. Injects the functors 6a and 6b into the suction passages 5a and 5b formed on the upper surface, and is inserted into the inner surface of the projecting cylinder 3 'on the upper surface of the spherical case 3 so that the locking projections 3 " The center of the upper surface of the cylinder 7 in which a plurality of discharge holes 8 are perforated, provided with a cylinder device composed of a sleeve tube 7 'and a cylinder 7 for covering the sleeve tube 7' from above. The crank pin of the circular crank 13 by assembling hermetically with the upper portion of the cylinder (7) as a sealing cap 12 so that the circular opening and closing plate 10 fitted to the stone bar (9) protruding into the spring (11) A discharge valve body which sucks air into the sleeve cone 7 'and discharges it as a soft piston head 15 of the piston rod 14, which is squeezed to 13' and reciprocates. Reference numeral 17 is an assembly bolt of the sealing cap 12, 18 is an assembly protrusion protruding from the top of the spherical case 3, 19, 19 'is a soft material piston head (16). The upper and lower fastening plates of 15), 20 are air supply hoses, and 21 are packings.

Detailed description of the effect of the present invention configured as described above is as follows.

Since one side of the suction passages 5a and 5b formed at the bottom of the spherical case 3 attached to one side of the motor 1 in a sealed state is configured to be open, air suction to the air suction chamber 4 is prevented. Although it is possible, the suction passages 5a and 5b are interpolated with filter 6a and 6b for filtering and removing foreign substances such as dust in the air, so that the circular crank 13 rotates when the motor 1 is driven. By the piston head 15 which reciprocates inside the sleeve tube 7 'of the cylinder apparatus by the reciprocating operation of the piston rod 14 attached to the crank pin 13', the air passes through the suction passages 5a and 5b. Since the air sucked into the suction chamber 4 is filtered through the filter 6a and 6b, fine foreign substances such as dust contained in the atmosphere are perfectly filtered while passing through the blower 6a and 6b. The air sucked into the air intake chamber 4 through 5 ') is in a clean state (see FIG. 4).

As described above, the air suction chamber 4 in which only the purely filtered air is sucked in supplies the clean air into the sleeve tube 7 '. As shown in FIG. 3, the circular crank 13 rotates. When the piston head 15 of the reciprocating piston rod 14 is moved from the inner lower side to the inner upper side of the through tube 7 ', the state in which the air sucked into the sleeve tube 7' is pushed up and compressed. At this time, the piston head 15 has a cross section “ Compression force of the compressed air acts on the upper side of the piston head 15 of the soft material because it is configured in the upper and lower lobe state of the ”type, and the piston head 15 is airtight on the inner surface of the sleeve tube 7 '. The air compression force existing inside the sleeve cone 7 'acts on the plurality of discharge holes 8 drilled on the cylinder 7, thereby compressing the discharge holes 8. Air is discharged to the discharge valve body 16 through the inner space of the sealing cap 12 while opening the flame-opening board 10 burned with the spring 11, thereby purifying clean air to the air supply hose 20. If the piston head 15 is operated downward from the inner upper portion of the sleeve tube 7 'by the rotational operation of the circular crank 13 as shown in FIG. 3 (b), the sleeve tube 7 ') Compressive force of air does not act on the inner upper side The circular opening and closing plate 10, which opened the discharge hole 8 while compressing the sppping 11 by air compression force action, is instantaneously formed on the upper surface of the cylinder 7 by the elastic restoring force of the spring 11. Since the exhaust hole 8 is closed while being in close contact, the air pressure is rapidly reduced in the space at the upper side of the piston head 15 which moves downward, while the lower side of the piston head 15 and the air suction chamber 4 are closed. Since the air pressure is in a relatively increasing state, the air sucked into the air suction chamber 4 by this difference in air pressure acts to push the outer periphery of the piston head 15, and vice versa. (7 ') The inner upper side acts to squeeze the outer circumference of the piston head 15 in a vacuum state, and since the piston head 15 itself is made of a soft rubber material, it is reduced by air pressure difference. Action circle Accordingly, when the piston head 15 is moved downward, the air existing in the air suction chamber 4 is reduced, which is formed between the outer periphery of the piston head 15 and the inner surface of the sleeve tube 7 'that are moved downward. When the piston head 15 is introduced into the sleeve tube 7 'through the gap and then the piston head 15 is moved upward, it is compressed as described above and is discharged to the outside while the circular opening and closing plate 10 is opened by the compression force. 7 ') When the air inside is discharged, the internal pressure of the air suction chamber 4 decreases, so that the outside air is interpolated into the suction passages 5a and 5b according to the pressure reduction action. ) While being filtered and supplied to the air intake chamber, it is possible to continuously pump clean air.

In addition, since the piston head 15 for pumping air is configured to reciprocate up and down inside the sleeve tube 7 'as described above, the generation of noise can be significantly reduced as compared with a conventional diaphragm or a rotary blade.

In this paper, the filter is inserted into the air intake passage at the bottom of the air suction chamber inside the spherical case where the crank device and the piston device are installed, and the foreign matter contained in the air flowing into the air suction chamber is filtered cleanly. Inhalation of clean air only significantly extends the service life of the crank and piston units, as well as prevents damage to the piston head and sleeve inner surfaces, thus extending their service life and pumping air. Not only can it improve efficiency, it is a useful design with the advantages of pumping and supplying clean air.

Claims (1)

An air suction chamber 4 is formed by attaching a spherical case 3 sealed to the cover plate 2 on one side of a common motor 1 to form an inlet hole 5 'on both sides of the inner bottom of the spherical case 3. A sleeve tube is inserted into the suction passages 5a and 5b formed on the upper surface and inserted into the inner surface of the projection cylinder 3 'on the upper surface of the spherical case 3 to be caught by the locking projection 3 ″. (7 ') and a cylinder device consisting of a cylinder (7) for covering the sleeve tube (7') from the top, and a stone bar protruding from the center of the upper surface of the cylinder (7) in which a plurality of discharge holes (8) are perforated ( 9) the circular opening and closing plate 10 fitted in the spring 11 is assembled to the upper part of the cylinder 7 as a sealing cap 12 so as to be elastically installed, and is installed on the crank pin 13 'of the circular crank 13. And sucks air into the sleeve tube 7 'as a soft piston head 15 of the piston rod 14 which reciprocates and discharges it into the discharge valve body 16. Air Pump (Air pump), characterized in that configured to supply air.