KR200313622Y1 - Air pump and twin valve for the air pump - Google Patents

Abstract

The present invention relates to an air pump and a twin valve for an air pump that can improve the structural rigidity of the valve mounted in the pump and prevent the performance of the pump from deteriorating due to the deformation caused by the long-term repeated use of the valve. Air pump according to the present invention is a twin valve; A cylinder in which a valve receiving groove is formed to accommodate the twin valve; An air duct coupled to an upper surface of the cylinder; A piston installed in the cylinder and reciprocating to selectively open and close the twin valve; An eccentric cam interlocked with the motor and converting the rotational motion of the motor into a linear motion of the piston, wherein the twin valve includes: a first packing part, an intake valve integrally formed inside the first packing part; A second packing part disposed to face the first packing part, an exhaust valve integrally formed inside the second packing part, and a connection part connecting the first packing part and the second packing part, The bottom surface of the valve and the upper surface of the exhaust valve is characterized in that ribs protruding from each valve surface.

Description

AIR PUMP AND TWIN VALVE FOR THE AIR PUMP}

The present invention relates to an air pump and a twin valve for an air pump that can prevent the performance degradation of the pump due to air leakage due to the deformation of the valve and at the same time improve the durability of the pump.

Recently, the necessity of an oxygen generator for supplying fresh air having high oxygen concentration to the room is increasing due to the increase of air pollution such as automobile smoke. Applications of such oxygen generators are expanding include home water purifiers, air conditioners, vehicle oxygen generators, home indoor ventilation oxygen generators, and the like.

An example of such an oxygen generator is shown in Korean Patent Laid-Open Publication No. 2001-0103091, which includes an air pump for compressing air, a heat exchanger and a cooling fan, and a cooling system for cooling the compressed air. And a gas separation membrane for generating oxygen from the cooled air.

On the other hand, the air pump provided in the oxygen generating device is generally in the trend of miniaturization, there is an advantage that the generation of noise and vibration less than the conventional large-capacity air pump according to the miniaturization of such a pump.

1 shows an example of an air pump provided in a conventional oxygen generating device (see Korean Utility Model Registration No. 20-0262310), and as shown, the air pump has two discharge pipes 11 and suction holes 12. Both sides of the housing 10 and the both side cover having a discharge port 24 and the suction port 25 which are respectively coupled to both sides of the housing 10 and communicated to the pump chamber 21 and the connection grooves 22 and 23 ( 20 and between the housing 10 and the cover 20, the diaphragm 30 is installed between each of the airtight and the discharge pipe 11 and the discharge port 24, respectively, is opened during the compression stroke of the diaphragm 30 Both diaphragms 30 coupled to the discharge valve 40, the suction hole 12, and the suction port 25, coupled to the suction valve 50 and the housing 10, which are opened during the suction stroke of the diaphragm 30. It comprises a motor 60 is provided with an eccentric rotation shaft 61 for reciprocating the left and right.

According to the above configuration, when the motor 60 is driven and the eccentric rotation shaft 61 makes the eccentric rotation movement, both diaphragms 30 repeat the reciprocating movement from side to side in the pump chamber 21 to perform compression stroke and suction stroke. Since it is repeatedly performed to discharge the compressed air to the discharge port 11 in succession, respectively, it is possible to increase the air compression force.

On the other hand, the discharge valve and the intake valve applied to such a conventional air pump is generally made of a rubber material having an elastic and the air in and out by the elastic deformation according to the left and right reciprocating movement of the diaphragm.

However, when the air pump is continuously used for a long time, the valve is accompanied by structural deformation such as the end of the valve is bent due to the fatigue phenomenon caused by the repeated opening and closing action of the intake / discharge valve in the air pump. There is a problem that can not be restored to its original state. In this case, it is impossible to completely close the air by the intake valve or the discharge valve, and eventually there is a problem that the performance and durability of the air pump can be greatly reduced.

Accordingly, the present invention is devised to solve the above problems, the object of the present invention is to form a rib of a certain width on the surface of the valve mounted in the pump to increase the structural rigidity, air leakage due to the deformation of the valve The present invention provides an air pump and a twin valve for an air pump, which can prevent the performance degradation of the pump and improve the durability of the pump.

1 is an exploded perspective view showing a conventional air pump.

Figure 2 is a perspective view showing an air pump according to the present invention.

Figure 3 is an exploded perspective view showing a specific configuration of the air pump shown in FIG.

Figure 4 is an enlarged perspective view showing the main structure of the cylinder and the air duct shown in FIG.

5 is an enlarged perspective view illustrating a top structure of the twin valve illustrated in FIG. 2.

Figure 6 is an enlarged perspective view showing the lower structure of the twin valve shown in FIG.

Figure 7 is a perspective view showing a twin valve structure according to another embodiment of the present invention.

8 is a cross-sectional view for explaining the operating relationship of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: twin valve 110,120: intake / exhaust valve

112,122 Rib 114,124 Valve sealing jaw

130,140: first and second packing part 132,142: sealing part sealing jaw

150 connection part 200 cylinder

230: valve receiving groove 232,234: first and second through hole

236,238 1st, 2nd horizontal 239,315 Slope

250,260: first and second coupling protrusion 300: air duct

310,320: 1st, 2nd room 311,312: 3rd, 4th through hole

313,314: 3,4 horizontal film 321,322: 1st, 2nd coupling groove

330: partition 340: gas inlet

350 gas outlet 380 filter

390: rubber ring 400: piston

500: eccentric cam 600: support

700: cover 720: screw

800: motor 1000: air pump

Air pump according to the present invention for achieving the above object is a twin valve; A cylinder in which a valve receiving groove is formed to accommodate the twin valve; An air duct coupled to an upper surface of the cylinder and having a first chamber into which gas is introduced and a second chamber into which gas is discharged; A piston installed in the cylinder and reciprocating to selectively open and close the twin valve; And an eccentric cam interlocked with the motor and converting the rotational motion of the motor into a linear motion of the piston, wherein the twin valve includes a first packing part and an intake valve integrally formed inside the first packing part. And a second packing part disposed to face the first packing part, an exhaust valve integrally formed inside the second packing part, and a connection part connecting the first packing part and the second packing part. The bottom surface of the valve and the upper surface of the exhaust valve is characterized in that ribs protruding from each valve surface.

In addition, the twin valve according to the present invention for achieving the above object is the first packing portion; An intake valve formed integrally with the first packing part; A second packing part disposed to face the first packing part; An exhaust valve integrally formed inside the second packing part; And a connecting part connecting the first packing part and the second packing part, wherein ribs protruding from each valve surface are formed on a bottom surface of the intake valve and an upper surface of the exhaust valve.

According to the above configuration, since ribs are formed in the intake / exhaust valve to increase structural rigidity of the valve, deformation of the valve does not easily occur even when the valve is repeatedly used for a long period of time.

Accordingly, it is possible to prevent the air from leaking into the gap generated by the deformation of the intake / exhaust valve as in the related art, thereby significantly reducing the operation performance of the air pump.

A valve sealing jaw for preventing air leakage is formed on an upper surface portion of the intake valve and a lower surface portion of the exhaust valve.

In this case, since the intake / exhaust valve is closed, the second through hole or the third through hole may be sealed through the valve sealing jaw, thereby preventing air leakage.

In addition, a packing part sealing jaw is formed on an upper surface of the first packing part and the second packing part.

In this case, a gap is generated between the first packing part, the second packing part, and the air duct, thereby suppressing the leakage of air to the outside.

The ribs are formed such that the protruding width gradually increases with distance from the connecting portion.

As such, when the protrusion width of the rib is formed to be larger toward the end of the intake / exhaust valve, rigidity can be maintained evenly over the entire area of the intake / exhaust valve.

First and second coupling grooves having different sizes are formed on the bottom surface of the air duct, and first and second coupling protrusions are formed on the upper surface of the cylinder to correspond to the first and second coupling grooves, respectively.

In this case, since the correct assembly position of the cylinder and the air duct can be set through the combination of the first and second coupling grooves and the first and second coupling protrusions when the cylinder and the air duct are assembled. Final bonding via screws is facilitated.

In addition, if the size of the first coupling groove and the second coupling groove is differently formed, it is possible to prevent the assembly of the upside down by changing the intake / exhaust direction in the assembling process of the cylinder and the air duct.

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

The air pump of the present invention to be described below will be described as an embodiment of the air pump applied to the conventional oxygen generator mentioned in the prior art described above, but in addition to such oxygen generator air mattress, air massager, blood pressure It is noted that the present invention can be applied to various devices requiring air pressure such as a measuring instrument, a vacuum cleaner, and the like.

2 is a perspective view showing an air pump according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing a specific component configuration of the air pump shown in FIG.

2 and 3, the air pump 1000 according to the present invention includes a cylinder 200 having a twin valve 100, a valve receiving groove 230 in which the twin valve 100 is accommodated, and a cylinder ( The air duct 300 coupled to the upper part 200 and the piston 400 mounted in the cylinder 200 to selectively rotate the twin valve 100 and the motor 800 rotate linearly of the piston 400. It includes an eccentric cam 500 for converting the movement.

The twin valve 100 is a valve made of a rubber material having a predetermined elasticity, and includes an intake valve 110 and an exhaust valve 120.

The cylinder 200 is composed of a cylindrical body 210 having a space portion formed therein and a flange portion 220 constituting an upper surface of the body 210, and a twin valve 100 is formed at the center of the upper surface of the flange portion 220. A valve accommodating groove 230 is formed to be accommodated, and a fastening hole 240 is provided at the outer periphery of the upper surface so that the screw 720 may be fastened.

In addition, a first through hole 232 and a second through hole 234 are formed in the valve receiving groove 230 to allow air to enter and exit the cylinder 200.

In addition, the cylinder 200 fixes the flange 220 to the upper surface of the support 600, and then fixes the support 600 to the side surface of the motor 800.

The air duct 300 is a cylindrical member whose bottom part is closed and the top part is open, and there is provided a first chamber 310 through which air is introduced and a second chamber 320 through which air is discharged. 330 is partitioned.

In addition, a gas inlet 340 is formed on an outer surface of the air duct 300 to allow air to flow into the first chamber 310 from the outside. The gas outlet 350 is formed to be discharged to.

Here, depending on the use (vacuum or extrusion force) of the air pump of the present invention, the gas inlet 340 may be connected to a gas separation membrane module (not shown) to generate a vacuum pressure inside the module, and vice versa. By connecting the gas outlet 350 may be configured to supply compressed air into the gas separation membrane module.

In addition, the outer surface of the air duct 300 is formed with a fastening hole 360 to fasten the screw 720, the bottom portion of the first and second through holes 232 and 234 of the cylinder 200 The third and fourth through holes (not shown) are symmetrical in the cross direction and penetrate into the air duct 300.

Meanwhile, a filter 380 for filtering impurities contained in the air entering and exiting through the gas inlet 340 and the gas outlet 350 in the first chamber 310 and the second chamber 320 in the air duct 300. ) Is accepted.

In addition, the upper portion of the air duct 300 is finally closed through the coupling of the cover 700 in the state in which the filter 380 is accommodated. A fastening hole 710 is formed on the outer surface of the cover 700 so that the screw 720 may be fastened.

At this time, in order not to leak the air inside the gap between the air duct 300 and the cover 700, a groove 370 is formed on the upper surface of the air duct 300 and a rubber ring in the groove 370 390 is inserted and sealed.

On the other hand, the piston 400 is accommodated in the body 210 of the cylinder 200, the configuration is the piston body 210, the piston ring 420, the piston cap 430 through the screw 440 It is a combined structure.

One end of the eccentric cam 500 is rotatably connected to the lower end of the piston 400, the center portion is connected to the rotary shaft (not shown) of the motor 800 is rotated in conjunction with the driving of the motor 800. .

The eccentric cam 500 converts the rotational motion of the motor 800 into a linear reciprocating motion in the vertical direction of the piston 400, and the piston 400 pressurizes or depressurizes the inside of the cylinder 200. By selectively opening and closing the intake valve 110 and the exhaust valve 120 in the valve 100 to generate the air pressure.

On the other hand, Figure 4 is an enlarged perspective view showing in detail the main structure of the cylinder 200 and the air duct 300 shown in FIG.

As shown in FIG. 4, the first through hole 232 of the cylinder 200 has a rectangular shape larger than the area of the intake valve 110 of the twin valve 100, and the intake valve 110 is located inside. The first horizontal film 236 for supporting the film is formed.

Accordingly, the first through hole 232 is not able to be completely closed by the intake valve 110 so that the first through hole 232 may be kept in a partially closed state.

An inclined portion 239 is formed on an upper surface of the first horizontal film 236 to allow the intake valve 110 to be bent toward the inside of the cylinder 200.

On the other hand, the second through hole 234 of the cylinder 200 has a circular shape smaller than the area of the exhaust valve 120 of the twin valve 100, the second horizontal membrane 238 is formed inside.

Accordingly, unlike the first through hole 232, the second through hole 234 may be maintained in a completely closed state by the exhaust valve 120.

The bottom surface of the air duct 300 has a third through hole 311 corresponding to the first through hole 232 of the cylinder 200 and a fourth through hole corresponding to the second through hole 234 ( 312 is formed, and the third and fourth through holes 311 and 312 are provided with a third horizontal film 313 and a fourth horizontal film 314, respectively.

In this case, since the third through hole 311 has the structure of the second through hole 234, and the fourth through hole 312 is formed in the same structure as the first through hole 232. Additional detailed description will be omitted.

In addition, a first coupling groove 321 and a second coupling groove 322 having different sizes are formed at both side ends of the bottom portion of the air duct 300, and an upper surface of the flange portion 220 of the cylinder 200. In the first coupling groove 321 and the second coupling groove 322 is formed a first coupling protrusion 250 and the second coupling protrusion 260, respectively.

In this way, the first and second coupling grooves 321 and 322 and the first and second coupling protrusions 250 and 260 are provided so that the assembly position when the cylinder 200 and the air duct 300 are assembled. Since it can be set in advance, the final fastening operation by the screw 720 is facilitated.

In addition, as the sizes of the first coupling grooves 321 and the second coupling grooves 322 are differently formed, the intake / exhaust directions are reversed during assembly of the cylinders 200 and the air ducts 300. It can be prevented beforehand.

On the other hand, Figure 5 is an enlarged view of the twin valve 100 shown in Figure 2, a view showing the upper structure of the twin valve 100, Figure 6 is a view showing the lower structure of the twin valve 100.

As shown in FIGS. 5 and 6, the twin valve 100 includes a first packing part 130, an intake valve 110 integrally formed inside the first packing part 130, and a first packing part. The second packing part 140 disposed to face the 130, the exhaust valve 120, the first packing part 130, and the second packing part 140 formed integrally with the inside of the second packing part 140. It consists of a connecting portion 150 for connecting.

Ribs 112 and 122 protruding from the surfaces of the respective valves 110 and 120 are formed at the center of the bottom surface of the intake valve 110 and the top surface of the exhaust valve 120.

In this case, the ribs 112 and 122 are formed to be smaller than the inclination angles of the inclined portions 239 and 315 formed in the first and fourth horizontal films 236 and 314 to intake / exhaust valves 110 and 120. Do not disturb the opening and closing action of.

In addition, the ribs 112 and 122 are preferably formed such that their protruding width gradually increases as they move away from the connecting portion 150.

As such, when the ribs 112 and 122 are formed in the intake valve 110 and the exhaust valve 120, the structural rigidity of the intake / exhaust valves 110 and 120 is increased so that the ribs 112 and 122 are continuously formed for a long time. Even when the bending operation is performed, deformation of the intake / exhaust valves 110 and 120 can be significantly reduced.

In addition, the protruding width of the ribs 112 and 122 formed in the intake / exhaust valves 110 and 120 is formed to increase gradually as it progresses toward the end, thereby covering the entire area of the intake / exhaust valves 110 and 120. The stiffness can be kept even.

On the other hand, the upper surface portion of the intake valve 110 and the bottom portion of the exhaust valve 120 of the annular valve sealing jaw 114 of larger than the size of the third through hole 311 and the second through hole 234, respectively 124 is formed.

The valve sealing jaws 114 and 124 increase the adhesion to the surfaces of the cylinder 200 and the air duct 300 while the intake / exhaust valves 110 and 120 are closed to suppress the occurrence of gaps. This prevents air leakage.

The first packing part 130 and the second packing part 140 are accommodated and supported in the valve receiving groove 230 of the cylinder 200, and the first through hole 232 and the second through hole 234 through which air is introduced and received. ) It acts as a packing to seal the surroundings.

At this time, the upper edge portion of the first packing portion 130 and the second packing portion 140 is formed in the sealing portion sealing jaw 132, 142 for sealing the air, the packing portion sealing jaw 132 142 increases the adhesion between the first and second packing parts 130 and 140 and the bottom surface of the air duct 300 to prevent air from leaking to the outside.

The structure of the twin valve 100 according to an embodiment of the present invention described above is a rib 112, 122 of the intake / exhaust valve 110, 120 for preventing deformation of the valve as shown in the above-described drawings. Although limited to the central portion, as in the other embodiment of the present invention shown in FIG. 7, two ribs 112 and 122 having the same shape as in the above-described embodiment are formed of the first horizontal film 236 and the fourth horizontal film. It may be formed in a structure spaced a predetermined distance from each central portion of the intake / exhaust valves 110, 120 so as not to contact the (314).

When formed as described above, the opening and closing action of the intake / exhaust valves 110 and 120 is prevented by mutual interference between the ribs 112 and 122 and the first and fourth horizontal films 236 and 314. It can prevent it beforehand.

In addition, if the opening / closing action of the intake / exhaust valves 110 and 120 is not limited, the shape and number of the ribs may be changed in various ways.

Hereinafter, the overall operating relationship of the present invention in detail as follows.

Figure 8 is a cross-sectional view showing the internal structure of the air pump according to the present invention, in particular, illustrating the intake stroke process according to the opening of the intake valve 110.

Referring to FIG. 8 and the accompanying drawings described above, first, when the motor 800 is driven, the eccentric cam 500 interlocks to perform an eccentric rotation movement, and the piston 400 connected to the eccentric cam 500 is a cylinder. The reciprocating motion is repeated in the vertical direction within 200.

At this time, when the piston 400 is lowered in the suction stroke, the inlet valve 110 is forcibly opened by the suction force through the gas inlet 340, the third through hole 311, and the first through hole 232. When the air flows into the cylinder 200 and, on the contrary, during the compression stroke in which the piston 400 is lifted, the exhaust valve 120 is forcibly opened by the compressive force, and thus the second through hole 234 and the fourth through hole. 312, the air is discharged to the outside through the gas outlet 350.

As the piston 400 repeatedly moves up and down, the gas inlet 340 of the air duct 300 forms a reduced pressure of air, and conversely, a gas pressurized state of the air is formed in the gas outlet 350.

Therefore, according to the intended use, connecting the gas inlet 340 to the gas separation membrane module (not shown) may generate a vacuum pressure inside the module, on the contrary, the gas outlet 350 to the gas separation membrane module In this case, compressed air may be supplied to the inside of the module.

When the continuous opening and closing of the intake / exhaust valves 110 and 120 is repeated for a long time, structural deformation such as sag of the ends of the intake / exhaust valves 110 and 120 is naturally accompanied. However, since the structural deformation of the intake / exhaust valves 110 and 120 is suppressed through the ribs 112 and 122, the durability of the air pump due to the leakage of air may be prevented.

In addition, the valve sealing jaws 114 and 124 formed in the intake / exhaust valves 110 and 120 and the packing part sealing jaws 132 and 142 formed in the first and second packing parts 130 and 140. By increasing the adhesion of the twin valve 100 to the cylinder 200 and the air duct 300, it is possible to suppress the leakage of air to the outside of the air pump as much as possible.

On the other hand, the twin valve for the air pump according to the present invention is the same as the twin valve structure and operation principle in the air pump shown in the above-described embodiment will not be described in detail.

According to the present invention described above, the following effects can be expected.

First, since ribs are formed on the intake valve and the exhaust valve to increase the structural rigidity of the valve, deformation of the valve does not occur easily even when the valve is repeatedly used for a long time.

Accordingly, it is possible to prevent the air from leaking into the gap generated by the deformation of the intake / exhaust valve as in the related art, thereby significantly reducing the operation performance of the air pump.

Second, by forming a valve sealing jaw in the intake valve and the exhaust valve, air leakage may be caused by sealing the periphery of the second or third through hole through the valve sealing jaw while the intake valve or the exhaust valve is closed. Can be prevented.

Third, by forming a packing part sealing jaw in the first packing part and the second packing part, a gap is generated between the first packing part and the second packing part and the air duct, thereby suppressing the leakage of air to the outside. .

Fourth, the protrusion width of the rib formed in the intake / exhaust valve is formed to increase gradually as it moves away from the connecting portion, thereby maintaining the rigidity evenly over the entire area of the intake / exhaust valve.

Fifth, the first and second coupling grooves having different sizes are formed in the bottom of the air duct, and the first and second coupling protrusions are formed in the first and second coupling grooves on the upper surface of the cylinder, respectively, to form the cylinder and the air duct. Fastening operation by screw is easy because it holds assembly position during assembly.

In addition, as the sizes of the first and second coupling grooves are different from each other, the intake / exhaust directions are changed during assembly of the cylinder and the air duct.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to vary the present invention without departing from the spirit and scope of the present invention described in the utility model registration claims below It will be understood that modifications and changes can be made.

Claims (8)

Twin valve; A cylinder in which a valve receiving groove is formed to accommodate the twin valve; An air duct coupled to an upper surface of the cylinder and having a first chamber into which gas is introduced and a second chamber into which gas is discharged; A piston installed in the cylinder and reciprocating to selectively open and close the twin valve; Interlocked with the motor, made of an eccentric cam to convert the rotational movement of the motor into a linear movement of the piston, The twin valve, The first packing part, An intake valve integrally formed inside the first packing part; A second packing part disposed to face the first packing part; An exhaust valve integrally formed inside the second packing portion, and Consists of a connecting portion connecting the first packing portion and the second packing portion, And a rib protruding from each valve surface on a bottom surface of the intake valve and an upper surface of the exhaust valve. The air pump of claim 1, wherein a valve sealing jaw is formed on an upper surface of the intake valve and a bottom surface of the exhaust valve. The air pump of claim 1 or 2, wherein a packing part sealing jaw is formed on an upper surface of the first packing part and the second packing part. The air pump as set forth in claim 3, wherein the ribs are formed such that the protrusion width gradually increases as the ribs move away from the connection portion. The first and second coupling grooves of claim 1, wherein first and second coupling grooves having different sizes are formed on the bottom surface of the air duct. Air pump, characterized in that the projection is formed. A first packing part; An intake valve formed integrally with the first packing part; A second packing part disposed to face the first packing part; An exhaust valve integrally formed inside the second packing part; And Consists of a connecting portion connecting the first packing portion and the second packing portion, Twin valves for the air pump, characterized in that the bottom surface of the intake valve and the upper surface of the exhaust valve ribs protruding from the respective valve surface. The twin valve of claim 6, wherein a valve sealing jaw is formed on an upper surface of the intake valve and a bottom surface of the exhaust valve. The twin valve of claim 6, wherein a packing part sealing jaw is formed on an upper surface of the first packing part and the second packing part.