WO2016003164A1 - Manual air pump capable of injection and emission - Google Patents

Abstract

Disclosed is a manual air pump that can provide negative pressure and positive pressure. The air pump may comprise: a rack gear; a pedal which is connected to the rack gear and enables the rack gear to move in a reciprocating manner; a pinion gear which is located on part of the rack gear so as to be able to convert the reciprocating movement of the rack gear to first rotating movement around a first rotational shaft; a first rotation unit gear which can rotate in one direction around the same first rotational shaft as the pinion gear; a second rotation unit gear which is engaged with and connected to the first rotation unit gear and which rotates around a second rotational shaft; and a pressure generating unit which is connected to the second rotational shaft, has a shape so as to be able to comprise therein an impeller gear for generating a flow in a liquid by means of rotational movement, and which comprises, in one part thereof, an intake port for delivering the negative pressure generated by the rotation of the impeller gear and, in another part thereof, an emission port for delivering the positive pressure generated by the rotation of the impeller gear. In addition, a medical waste collecting container may be further comprised, enabling the air pump to be used as a medical suction device.

Description

Manual air pump with inlet and outlet

The present invention relates to an air pump capable of providing a negative pressure or a positive pressure, and more particularly, to an air pump that can be manually operated using a pedal.

In general, an air pump means a device for discharging or compressing air.

Air pumps include a reciprocating pump, a rotary pump, and an ejector that ejects high pressure steam from a nozzle and sucks air with its force.

Reciprocating pumps are difficult to maintain a constant pressure, so rotary pumps are widely used in applications requiring a constant pressure.

In the medical field, there is a demand for a pump that generates a constant negative pressure in the removal of saliva in the dental treatment, the discharge of lung disease patients. However, pumps generally used in the medical field are electric pumps, which require power and are bulky and difficult to carry. However, dysphagia, respiratory failure, lung disease patients, etc., it is necessary to remove the secretions of the oral cavity and airways from time to time.

In addition, the medical device has a complicated structure and the unit price is very high, so it is generally difficult to use it for patients with insufficient economic power.

In addition, when a patient or the like removes lung blood, dust, or the like using a syringe having a relatively low cost, it is difficult to use both hands of the user, and there is a problem in maintaining a constant pressure sufficient to remove secretions.

Therefore, there is a need in the art for a hand-held pump that can maintain a constant strong negative or positive pressure.

In addition, there is a need in the art for a portable pump that is simple in structure and economical.

In addition, there is a need in the art for a portable pump that has a simple structure and allows a user to use both hands freely.

The present invention is devised in response to the above-described background, and is intended to perform the operation of the air pump manually without power such as electricity.

The present invention is to provide a strong negative pressure or positive pressure by using a rotary pump to maintain a constant.

The present invention is to carry out the pump operation manually without the power of the battery or electricity, such as to allow the patient or the general user to carry the pump.

The present invention provides power by using a pedal, so that the user of the present invention can use both hands more freely.

The present invention is intended to enable the user to use more economically medical purposes because it can be combined with a separate suction tip as an air pump having a simple structure.

In accordance with one embodiment of the present invention for realizing the problem as described above, a manual air pump providing a negative pressure or a positive pressure is disclosed. The apparatus may include a gear gear, a pedal unit coupled to one end of the rack gear to transfer power to the rack gear so that the rack gear can reciprocate, and having a first rotary shaft for reciprocating motion by the rack gear. A first rotating part including a pinion gear positioned in another portion of the rack gear so as to be converted into one rotational movement, and a first rotating gear gear positioned on the upper or lower surface of the pinion gear having the same rotation axis as the pinion gear; A second rotating part including a second rotating gear which is engaged with the first rotating gear and rotates about the second rotating shaft, and an impeller gear coupled to the second rotating shaft to generate a flow of fluid due to the rotating motion; It has a shape that can be included in, to transmit the sound pressure generated by the rotation of the impeller gear to a part It may include a pressure generating portion having a suction port, and the discharge port for transmitting a positive pressure generated by the rotation of the impeller gear to another portion.

In addition, according to an embodiment of the present invention, the device may further include a pressure control nozzle or medical waste recovery container that can be coupled to the inlet.

In addition, according to an embodiment of the present invention, the device may further include a pressure control nozzle that can be coupled to the outlet.

The present invention can perform the operation of the air pump manually without power such as electricity.

The present invention can be provided by maintaining a constant strong negative pressure or positive pressure using a rotary pump.

The present invention can perform a pump operation manually without the power of the battery or electricity, such that the patient or a general user can carry and use the pump.

The present invention provides power by using a pedal, so that the user of the present invention can use both hands more freely.

The present invention can be combined with a separate suction tip and recovery container as an air pump having a simple structure, so that the user can use it more economically for medical purposes.

1 is a perspective view of an entire apparatus according to an embodiment of the present invention.

Figure 2a is a side view associated with an embodiment of the present invention.

Figure 2b is a side view associated with an embodiment of the present invention.

Figure 3a is a plan view showing each gear according to an embodiment of the present invention.

Figure 3b is a plan view showing each gear according to an embodiment of the present invention.

4 is a view showing a pressure generating unit according to an embodiment of the present invention.

5 is a medical suction part according to an embodiment of the present invention.

6 is a waste collection container of the medical inhaler according to another embodiment of the present invention.

7 is an air pump nozzle according to an embodiment of the present invention.

Various embodiments are now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the present specification, various descriptions are presented to provide an understanding of the present invention. It is evident, however, that such embodiments may be practiced without these specific details. In other instances, well-known structures and devices are provided in block diagram form in order to facilitate describing the embodiments.

The description of the presented embodiments is provided to enable those skilled in the art to make or use the invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention should not be limited to the embodiments set forth herein but should be construed in the broadest scope consistent with the principles and novel features set forth herein.

1 is a perspective view of an entire apparatus according to an embodiment of the present invention.

The pedal part 100 includes a pedal 110, a spring 120, and a coupling part 115 of a pedal and a recreation gear. The pedal 110 may be pressed by the user by foot or hand. When the pedal 110 is pressed, the pivoting movement of the pedal may be transmitted to the recreation gear 210 through the coupling portion 115 of the pedal and the recreation gear, thereby advancing the recreation gear 210. When the pressure applied by the user is removed, the spring 120 may restore the pedal 110 to its original position by the elastic force. When the pedal 110 is restored to the original position, the peek gear 210 may be reversed. As described above, the recreation gear 210 may reciprocate back and forth as the user applies pressure to the pedal 110 and releases it. In other embodiments, the position of the spring 120 may be coupled to a pedal or a rack gear. The position of the spring 120 may be located at an appropriate position for restoring the pedal without limiting interpretation by this drawing.

The gear unit 200 may include a pinion gear 220, a first rotating gear 230, a first rotating shaft 225, a second rotating gear 240, and a second rotating shaft 245.

The pinion gear 220 may operate in conjunction with the rack gear 210. The pinion gear 220 may be driven by the reciprocating motion of the rack gear 210 to rotate about the first rotation shaft 225. As a result, the pinion gear 220 may convert the reciprocating motion of the rack gear 210 into a rotational motion.

The first rotating gear 230 may share the pinion gear 220 and the first rotating shaft 225. The first rotation gear 230 may rotate as the pinion gear 220 rotates the first rotation shaft 225 while the pinion gear 220 rotates. The first rotating gear 230 may operate in conjunction with the second rotating gear 240.

The first rotational shaft 225 may drive as a rotational axis common to the pinion gear 220 and the first rotational gear 230. The first rotation shaft 225 may transmit the rotational motion of the pinion gear 220 to the first rotation gear 230.

The second rotating gear 240 may operate in conjunction with the first rotating gear 230. The second rotating gear 240 may rotate in the opposite direction as the first rotating gear 230 rotates. The second rotating gear 240 may rotate in rotation about the second rotating shaft 245. The second rotating gear 240 may transmit the rotational motion of the first rotating gear 230 to the second rotating shaft 245.

The impeller gear 330 may share the second rotating gear 240 and the second rotating shaft 245. The impeller gear 330 may rotate as the second rotary gear 240 rotates while the second rotary shaft 245 rotates.

The second rotation shaft 245 may drive as a rotation shaft common to the second rotation gear 240 and the impeller gear 330. The second rotation shaft 245 may transmit the rotational movement of the second rotation shaft gear 240 to the impeller gear 330.

The pressure generator 300 may include an inlet 370, an outlet 350, an impeller gear 330, and a safety net (not shown). The pivot movement generated by the pedal 110 is converted into the reciprocating movement of the recreation gear 210 and is converted into the rotational movement by the pinion gear 220 to the rotational movement of the impeller gear 330 by the second rotation shaft 245. The pressure generating unit 300 may be configured to provide a negative pressure or a positive pressure to a user by flowing the fluid.

Figure 2a is a side view associated with an embodiment of the present invention.

When the user applies force to the pedal 110, the pedal 110 pivots downward, and the recreation gear 210 coupled by the engaging portion 115 of the pedal and the recreation gear is moved forward by the pedal 110 ( 2a to the left). When the recreation gear 210 moves forward, the pinion gear 210 engaged with the rotation gear rotates.

As described above, the first rotary gear 230 and the pinion gear 220 are coupled to share the first rotary shaft 225. Therefore, as the pinion gear 220 rotates, the first rotating gear 230 may also rotate. The first rotating gear 230 may have a larger diameter than the pinion gear 220 to provide a higher speed of rotation to the second rotating gear 240.

As described above, the second rotating gear 240 operates in conjunction with the first rotating gear 230 to rotate in a direction opposite to the rotation direction of the first rotating gear 230 around the second rotating shaft 245. can do. The second rotating gear 240 or the second rotating shaft 245 may further include a clutch gear (not shown) for rotating the second rotating shaft 245 in one direction. The second rotating gear 240 may have a smaller diameter than the first rotating gear 230 to rotate at a higher speed than the first rotating gear 230.

The impeller gear 330 may share the second rotation gear 240 and the second rotation shaft 245 to share the impeller gear 330. The second rotating shaft 245 rotates by the rotational movement of the second rotating gear 240 and the impeller gear 330 coupled to the second rotating shaft may rotate.

When the impeller gear 330 is rotated, the rotary blade 335 of the impeller gear may transmit kinetic energy to the fluid (eg, air) by centrifugal force. Fluid may be transferred in one direction by the kinetic energy transmitted by the rotary vanes 335.

Figure 2b is a side view associated with an embodiment of the present invention.

When the force applied by the user to the pedal 110 is removed, the pedal 110 pivots upward, and the recreational gear 210 coupled by the pedal 115 and the engaging portion 115 of the pedal gear moves backward by the pedal 110. (Move to the right in Fig. 2b). When the recreation gear 210 moves backward, the pinion gear 210 engaged with the rotation gear 210 rotates in the opposite direction as in the forward movement of the recreation gear 210.

As described above, the first rotary gear 230 and the pinion gear 220 are coupled to share the first rotary shaft 225. Therefore, as the pinion gear 220 rotates, the first rotating gear 230 may also rotate. The direction of rotation of the pinion gear 220 and the first rotational gear 230 is the opposite direction as the forward movement of the gear gear 210.

As described above, the second rotating gear 240 operates in conjunction with the first rotating gear 230 to rotate in a direction opposite to the rotation direction of the first rotating gear 230 around the second rotating shaft 245. can do. The second rotating gear 240 or the second rotating shaft 245 may further include a clutch gear (not shown) for rotating the second rotating shaft 245 in one direction. The direction of rotation of the second rotary gear 240 is the opposite direction as the forward movement of the recreation gear 210.

The rotational motion may be transmitted from the second rotation gear 240 to the second rotation shaft 245 through the clutch gear. The clutch gear may prevent the rotational movement of the second rotary gear 240 from being transmitted to the second rotary shaft during the backward movement of the recreation gear 210. The second rotation shaft 245 rotates in the rotational direction when the rack gear 210 moves forward due to inertia. During the backward movement of the recreation gear 210, the transmission of the rotational movement is released from the second rotational gear 240 to the second rotational shaft 245 by the clutch gear. Therefore, the second rotation shaft 245 may rotate in the same direction as the forward movement of the rack gear 210 due to the inertia of the rotational motion generated during the forward movement of the rack gear 210.

The impeller gear 330 may share the second rotation gear 240 and the second rotation shaft 245 to share the impeller gear 330. The second rotating shaft 245 rotates by the rotational movement of the second rotating gear 240 and the impeller gear 330 coupled to the second rotating shaft may rotate. However, during the backward movement of the recreation gear 210, the transmission of the rotational movement of the second rotation gear 240 to the second rotation shaft 245 is released by the clutch gear. Therefore, the impeller gear 330 is rotated in the same rotational direction as in the forward movement of the rack gear 210 by the inertia.

When the impeller gear 330 is rotated, the rotary blade 335 of the impeller gear may transmit kinetic energy to the fluid (eg, air) by centrifugal force. Fluid may be transferred in one direction by the kinetic energy transmitted by the rotary vanes 335. At this time, the moving direction of the fluid may be maintained the same as the forward movement of the rack gear (210).

Figure 3a is a plan view showing each gear according to an embodiment of the present invention.

When the user applies force to the pedal 110, the pedal pivots downward and the recreation gear 210 moves forward (moving in the direction of the left arrow in FIG. 3A). The pinion gear 220 operating in conjunction with the recreation gear 210 may rotate in the counterclockwise direction. The first rotary gear 230 which is coupled to the pinion gear 220 and the first rotary shaft 225 and rotates in a counterclockwise direction by the rotational movement of the pinion gear 220 transmitted through the first rotary shaft 225. I can exercise. The first rotary gear 230 may have a diameter larger than the diameter of the pinion gear 220 to provide the second rotary gear 240 with a faster rotational motion than the first rotary shaft 225.

The second rotating gear 240 operates in conjunction with the first rotating gear 230. The second rotating gear 240 may rotate in a clockwise direction in association with the rotational movement of the first rotating gear 230. The impeller gear 330 which shares the second rotary gear 240 and the second rotary shaft 245 and is coupled thereto is clockwise by a rotational movement of the second rotary gear 240 transmitted through the second rotary shaft 245. Can rotate. The second rotary gear 240 may have a diameter smaller than the diameter of the first rotary shaft gear 230 to provide the second rotary shaft 245 with a faster rotational motion than the first rotary shaft 225.

Figure 3b is a plan view showing each gear according to an embodiment of the present invention.

When the user removes the force applied to the pedal 110, the pedal pivots upward and the recreation gear 210 moves backward (moving in the direction of the right arrow in FIG. 3A). The pinion gear 220 operating in conjunction with the recreation gear 210 may rotate in a clockwise direction. The first rotary gear 230 coupled to the pinion gear 220 and the first rotary shaft 225 and coupled to each other is rotated clockwise by a rotational movement of the pinion gear 220 transmitted through the first rotary shaft 225. can do. The first rotary gear 230 may have a diameter larger than the diameter of the pinion gear 220 to provide the second rotary gear 240 with a faster rotational motion than the first rotary shaft 225.

The second rotating gear 240 operates in conjunction with the first rotating gear 230. The second rotary gear 240 may rotate in a counterclockwise direction in association with the rotary motion of the first rotary gear 230.

The second rotating gear 240 and the second rotating shaft 245 may be coupled through a clutch gear that can cause the second rotating shaft 245 to rotate in one direction (eg, clockwise in the drawing). When the second rotary gear 240 rotates in the counterclockwise direction, the clutch gear (not shown) may release the transmission of the rotary motion from the second rotary gear 240 to the second rotary shaft 245. Therefore, the second rotation shaft 245 may rotate in the clockwise direction by the inertia of the rotational movement generated during the forward movement of the rack gear 210.

The impeller gear 330 may be coupled to the second rotation shaft 245 to rotate clockwise by inertia. In this case, the rotational movement of the second rotational gear 240 (counterclockwise rotational movement) may not be transmitted to the second rotational shaft 245 by the clutch gear (not shown).

According to another embodiment of the present invention, a clutch gear (not shown) may be included in the first rotation shaft 225. In this case, the clockwise rotation of the pinion gear 220 generated during the backward movement of the recreation gear 210 may not be transmitted to the first rotation shaft 245. Accordingly, the first rotational gear 230 is rotated in the forward movement of the rack gear 210 by the inertia of the rotational movement (for example, counterclockwise direction) generated during the forward movement of the rack gear 210 (for example, the anticlockwise rotation). Can only be rotated clockwise).

In addition, according to another embodiment of the present invention, a clutch gear (not shown) may be included in the first rotating gear 230. In this case, the clockwise rotation of the pinion gear 220 generated during the backward movement of the recreation gear 210 may not be transmitted from the first rotation shaft 245 to the first rotation gear 230. Accordingly, the first rotational gear 230 is rotated in the forward movement of the rack gear 210 by the inertia of the rotational movement (for example, counterclockwise direction) generated during the forward movement of the rack gear 210 (for example, the anticlockwise rotation). Can only be rotated clockwise).

4 is a view showing a pressure generating unit according to an embodiment of the present invention.

The pressure generator 300 may include a case 310, a safety net 315, an impeller gear 330, an outlet 350, and an inlet 370.

The pressure generator 300 may include an impeller gear 330 therein. The case 310 may be formed in a shape that may include the impeller gear 330 therein. The safety net 315 may be installed in the direction of the inlet 370 to which the impeller gear is exposed. Since the impeller gear can rotate at high speed , the safety net 315 can be safely used by the user.

The impeller gear 330 may be coupled to the second rotating gear 240 through the second rotating shaft 245 to rotate in accordance with the rotation of the second rotating shaft 245. The impeller gear 330 may include a rotary blade 335 that rotates inside the centrifugal pump to provide kinetic energy to the fluid. When the rotary blade 335 of the impeller gear 330 rotates with the impeller gear 330, the rotary blade 335 may transmit the kinetic energy by centrifugal force to the fluid (for example, air). Fluid may be transferred in one direction by the kinetic energy transmitted by the rotary vanes 335. The rotary blade 335 of the impeller gear may basically include three types of paddle type, propeller type, and turbine type. The impeller gear 330 may be received in the case 310.

Due to the rotation of the impeller gear 330, the fluid (for example, air) is rotated by the rotary blade 335, at which time the centrifugal force is generated in the fluid, the fluid is the case 310 in the second rotating shaft 245 Can be moved in a direction. The fluid moving in the direction of the case 310 from the second rotation shaft 245 is rotated along the case is discharged to the discharge port 350. When the fluid is discharged to the outlet 350, the pressure of the fluid inside the case 310 is relatively lower than the outside of the case. Therefore, the fluid is introduced into the suction port 370 by this pressure difference. Due to the rotation of the impeller gear 330, the fluid moves from the inlet 370 to the outlet 350 through the impeller gear 330. Therefore, a negative pressure is generated at the suction port 370, and a positive pressure is generated at the discharge port 370.

The discharge port 350 and the suction port 370 may be formed in a shape capable of combining the medical suction part, the air pump nozzle, and the medical waste recovery container.

5 is a medical suction part according to an embodiment of the present invention.

According to an embodiment of the present invention, the suction port 370 may be used as a medical suction device by combining the medical suction device 400.

The medical suction device 400 may include a suction tip 410, a suction pipe 420, a medical waste recovery container 430, a coupling pipe 440, and a coupling groove 450 for coupling with the suction port 370. have.

The suction tip 410 may be separated from the suction pipe 420 so that the suction tip 410 may be replaced hygienically. The tip portion (left side in this figure) of the suction tip 410 may be configured to have a diameter smaller than the diameter of the suction pipe 420 to provide finer suction to the user. The suction pipe 420 may allow the user to freely use the suction part of the patient by using a flexible material such as rubber or PVC. The medical waste collection container 430 may be separated from the suction pipe 420 and the coupling pipe 440 to allow the user to empty and clean the medical waste to enable hygienic reuse. Coupling pipe 440 may be used to leave the position of the medical waste collection container 430 by using a flexible material such as rubber, PVC, and the like. Coupling groove 450 for coupling with the inlet 370 may be configured in a suitable shape for coupling with the inlet 370. Coupling groove 450 for coupling with the inlet 370 may be appropriately combined with the inlet 370 so as not to lose the sound pressure generated in the inlet 370, including rubber.

In general, a medical suction is used in combination with an air pump, a suction tip, and a waste container by bringing an inhalation tip and a waste container into a patient bed and providing a negative pressure to the patient in the case of an inpatient bed. It is used in such a way. Therefore, the present invention can also be utilized as a medical suction device by combining the suction tip and the waste recovery container.

Existing suction machine has to be plugged into an electrical outlet, so there is a disadvantage that it is cumbersome for medical workers to use. However, the present invention does not require electricity and so can solve this problem. In addition, the conventional air pump requires the power of the electric light, such as swallowing difficulty, respiratory insufficiency, lung disease patients who have to remove the secretions of the oral cavity and airways from time to time, but there is a problem that can not be used portable, but the present invention is a manual Because it can be used as a power source, power is unnecessary and can be carried.

Medical suction device is expensive and difficult to use because of the economic burden. Therefore, the patient and the like have been carrying the syringe to remove the curry, blood, etc., the sound pressure does not maintain a constant, there is a problem that the pressure is weak, there is a problem that both hands are not free during use. However, the present invention can be produced inexpensively because of its simple structure, and it is possible to maintain a strong sound pressure by employing a rotary pump, and there is an advantage of using both hands freely when using a pedal.

6 is a waste recovery container of the medical inhaler according to another embodiment of the present invention .

The waste collection container of the medical inhaler of FIG. 6 includes a suction tip connection unit 510 for connecting a suction tip, a removable cover 520 for cleaning the inside of the waste collection container, and a waste collection container for collecting medical waste ( 530, the coupling groove 540 may be coupled to the suction port 370 of the pressure generator 300.

According to another embodiment example of the subject innovation, a medical waste recovery tube 500 may be coupled to the inlet 370 of pressure to biological father 300. The medical waste collection container 500 may be used as a medical suction device by connecting a suction tip to an upper end (upper view) of the suction tip connection part 510. In this case, the lower end portion of the suction tip connecting portion 510 may be located at the lower end portion (lower in the drawing) of the waste recovery container 530 so that the waste does not enter the pressure generating unit 300. The removable cover 520 may be detachable from the waste recovery container 530 so that the user may easily clean the waste inside the waste recovery container 530. In addition, the cover 520 may include a suction tip connection 510. Waste recovery container 530 may store the medical waste collected by the negative pressure generated in the pressure generating unit (300). The center of the waste recovery container 530 has a hole through which air can flow to the inlet 370. The center of the waste recovery container 530 may protrude to the extent close to the cover 520, so that medical waste collected in the waste recovery container 530 may not be introduced into the pressure generating unit 300. Coupling groove 540 may have a suitable shape that can be coupled to the inlet 370 of the pressure generating unit 300. The coupling groove 540 may allow the medical suction device to be coupled to the pressure generator 300 without the coupling pipe 440. Therefore, by connecting only the suction tip to the suction tip connecting portion 510 to be a medical suction device, it is possible to provide a better portability to the user by reducing the volume of the entire device. Medical waste may be introduced and stored in the waste recovery container 530 through the suction tip 410 and the suction tip connection 510. Since the air flows in the direction of the arrow, the waste recovery container 530 may maintain a sound pressure suitable for recovering medical waste. The air may flow in the direction of the arrow, but the medical waste may be stored in the waste recovery container 530 without being introduced into the pressure generating unit 300 by the shape of the protruding waste recovery container 530.

7 is an air pump nozzle according to an embodiment of the present invention.

The air pump nozzle 600 may include a coupling groove 630 for coupling with the nozzle 610, the air pump pipe 620, and the inlet 370 and / or the outlet 350.

The nozzle 610 may have a diameter smaller than the diameter of the inlet 370 or the outlet 350 to provide a stronger pressure to the user. The air pump tube 620 may be made of a material having flexibility, such as rubber and PVC, so that the user can freely use the air pump. The coupling groove 630 for coupling with the inlet 370 and / or the outlet 350 may be configured in a suitable shape for coupling with the inlet 370 and / or the outlet 350. The coupling groove 630 for coupling with the suction port 370 and / or the discharge port 350 may include rubber or the like so that the pressure generated at the suction port 370 and / or the discharge port 350 is not lost. Or it may be appropriately combined with the outlet 350.

According to one embodiment of the present invention, by combining the air pump nozzle 600 with the outlet 350 can be used as a higher positive pressure air pump. By using the air pump nozzle 600, the user can inject air quickly and conveniently when injecting air to the tube, such as in the water in the summer outdoors.

In addition, according to another embodiment of the present invention, by combining the air pump nozzle 600 to the inlet 370 can be used as a higher negative pressure air pump. By using the air pump nozzle 600, the user can be used quickly and conveniently when removing the air, such as the tube in the summer water play.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention should not be limited to the embodiments set forth herein but should be construed in the broadest scope consistent with the principles and novel features set forth herein.

As described above, related contents have been described in the best mode for carrying out the invention.

The invention can be used in portable pumps, medical instruments and the like.

Claims (7)

Manual air pump capable of providing negative or positive pressure, Recreational gears; A pedal unit coupled to one end of the rack gear to transfer power to the rack gear so that the rack gear can reciprocate; A pinion gear positioned at another portion of the rack gear so as to convert the reciprocating motion by the rack gear into a first rotational motion having a first rotational shaft, and the first pinion about the same first rotational axis as the pinion gear A gear unit including a first rotating gear located on an upper or lower surface of the gear, the second rotating gear being engaged with the first rotating gear and rotating about a second rotating shaft; And The suction port is coupled to the second rotating shaft and has a shape that can include an impeller gear for generating a flow of the fluid by the rotational movement therein, the inlet for transmitting the sound pressure generated by the rotation of the impeller gear to a part, and the other work It includes a pressure generating portion having a discharge port for transmitting a positive pressure generated by the rotation of the impeller gear to the part, Manual air pump providing negative or positive pressure. The method of claim 1, Further comprising a clutch gear coupled to the inside of the second rotary gear so that the second rotary gear can rotate in one direction, Manual air pump providing negative or positive pressure. The method of claim 1, Wherein the first rotary gear has a larger diameter than the pinion gear so as to provide a higher speed of rotation to the second rotary gear. Manual air pump providing negative or positive pressure. The method of claim 1, The second rotary gear has a smaller diameter than the first rotary gear so as to provide high speed rotation to the impeller gear, Manual air pump providing negative or positive pressure. The method of claim 1, Medical suction unit which can be coupled to the suction port; Further comprising, Manual air pump providing negative or positive pressure. The method of claim 1, Waste recovery container of the medical inhaler that can be coupled to the inlet; Including more; Manual air pump providing negative or positive pressure. The method of claim 1, An air pump nozzle having a diameter smaller than the diameter of the outlet that can be coupled to the outlet to increase positive pressure; Including more; Manual air pump providing negative or positive pressure.

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