JPH07145783A - Air intake/exhaust pump - Google Patents

Abstract

PURPOSE:To provide an air intake/exhaust pump whose nozzles can be changed over for air intake or for exhaust. CONSTITUTION:In the case of an air intake/exhaust pump equipped with a gas housing chamber 1 to house gas for air intake/exhaust; an expansion/ compression member 2 to expand/compress the gas in the gas housing chamber 1; and two nozzles 7a, 7b that connect the gas housing chamber 1 to the outside by means of connection passages 8a, 8b and at the same time are provided at the connection passages 8a, 8b with valves 9a, 9b to control the flow of the gas, the nozzle valves 9a, 9b are constituted so that air intake action or exhaust action may become selectable by means of changeover operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake / exhaust pump for intake and exhaust of gas.

[0002]

2. Description of the Related Art Conventionally, an intake / exhaust pump mainly comprises a gas storage chamber in which a gas is expanded / compressed by an expansion / compression member, and an intake nozzle and an exhaust nozzle which communicate with the gas storage chamber and communicate with the outside. It is used as a member. A valve is provided in each of the intake nozzle and exhaust nozzle paths to prevent backflow of gas and to expand and compress the gas in the gas storage chamber.

[0003]

In the above-mentioned conventional intake / exhaust pump, the intake nozzle has only the intake air, and the exhaust nozzle has only the exhaust air, and the intake / exhaust paths are fixed. Therefore, when using an intake / exhaust pump, connect a hose to the exhaust nozzle when you want to supply gas to the device that performs intake / exhaust, and conversely, when you want to remove the gas from the device that performs intake / exhaust, connect the hose to the intake nozzle. Had to be connected, and it took time to connect the hose. Further, when the intake / exhaust pump is housed inside the case, it is difficult to switch the connection of the hose.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an intake / exhaust pump capable of switching a nozzle for intake or exhaust.

[0005]

In order to solve the above problems, an intake / exhaust pump according to claim 1 expands / compresses a gas storage chamber for storing a gas for intake / exhaust and a gas in the gas storage chamber. A suction / exhaust pump having an expansion / compression member for communicating with a gas storage chamber and the outside through a communication passage, and a nozzle provided with a valve for controlling the flow of gas in the communication passage. Is configured such that an intake operation or an exhaust operation can be selected by a switching operation.

The intake / exhaust pump according to a second aspect is the intake / exhaust pump according to the first aspect, wherein at least two nozzles are provided so that one can perform an intake operation and the other can perform an exhaust operation.

Further, the intake / exhaust pump according to claim 3 is the intake / exhaust pump according to claim 1 or 2, wherein the valve of the nozzle can be displaced by a magnetic action, and the valve can be displaced. A valve body chamber that accommodates and has a gas storage chamber side opening and an external side opening, and two-way electromagnetic force is generated so that the valve body closes the gas storage chamber side opening or the external side opening with a constant pressure. It consists of an electromagnetic coil.

Further, the intake / exhaust pump according to claim 4 is the intake / exhaust pump according to claim 3, wherein the electromagnetic coil has an adjusting means for adjusting a magnetic action force for displacing the valve body. I am trying.

The intake / exhaust pump according to a fifth aspect is the intake / exhaust pump according to the third aspect, wherein the valve element is formed into a substantially spherical shape.

Further, an intake / exhaust pump according to a sixth aspect is the intake / exhaust pump according to the fifth aspect, in which a space between both openings of the valve body chamber is formed in a substantially V shape.

The intake / exhaust pump according to claim 7 is the intake / exhaust pump according to claim 5, wherein the valve of the nozzle is held at a position where the valve body does not close both openings when the electromagnetic coil is not energized. The valve holding means is provided.

Further, an intake / exhaust pump according to claim 8 is the intake / exhaust pump according to claim 3, wherein the valve of the nozzle is provided with a vent plate at a substantially central portion of the valve body chamber and both sides of the vent plate. The valve bodies are provided one by one.

[0013]

According to the structure of the first aspect, it is possible to switch between the intake operation and the exhaust operation by connecting one nozzle to a device for intake and exhaust.

According to the structure of claim 2, in addition to the effect of claim 1, at least two nozzles can be connected in advance to a device for intake and exhaust.

According to the third aspect of the present invention, in addition to the effect of the first or second aspect, the valve body is attracted by the magnetic force of the electromagnetic coil, so that the valve body is kept at a constant pressure at the gas storage chamber side. The opening or the external opening can be closed.

According to the structure of claim 4, in addition to the effect of claim 3, the closing force of the opening portion by the valve body changes.

According to the fifth aspect of the invention, in addition to the effect of the third aspect, the valve element rolls, so that the movement is facilitated.

According to the structure described in claim 6, in addition to the effect of claim 5, the valve element rolls away from the opening when the electromagnetic coil is not energized.

According to the structure of claim 7, in addition to the effect of claim 5, the valve body does not close the opening by the valve holding means when the electromagnetic coil is not energized.

According to the structure of claim 8, in addition to the effect of claim 3, the distance between the valve body and the opening is shortened.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic structural diagram of an intake / exhaust pump, which mainly includes a gas storage chamber, an expansion / compression member, a nozzle, and a valve.

Reference numeral 1 denotes a gas storage chamber that stores a gas for intake and exhaust, and is formed of resin into a hollow disk shape.

Reference numeral 2 denotes an expansion / compression member, which is a gas storage chamber 1.
Which expands and compresses the gas in the casing 3,
It has an electromagnet block 4 and a diaphragm 5. The electromagnet block 4 as a driving source has a mover block 6 that reciprocates by magnetic force inside, and a disk-shaped diaphragm 5 made of an elastic body is attached to both sides of the mover block 6. . The outer peripheral portion 5a of the diaphragm 5 is sandwiched between the outer peripheral portion 1a of the gas storage chamber 1 and the casing 3. In this embodiment, two gas storage chambers 1 are provided for one expansion / compression member 2.

Reference numerals 7a and 7b are nozzles, which connect the gas storage chamber 1 and the outside with communication passages 8a and 8b, and two nozzles are provided in each gas storage chamber 1.

Reference numerals 9a and 9b are valves, which are attached to the paths of the nozzles 7a and 7b. The valves 9a and 9b are hollow valve body chambers 10a and 10b,
Valve bodies 11a, 11b inserted into the valve body chambers 10a, 10b and electromagnetic coils 12a, 12b, 12c, arranged around the valve body chambers 10a, 10b,
And 12d. The valve body chambers 10a, 10b are made of resin, have V-shaped grooves 13a, 13b inside, and circular gas-accommodating chamber side openings on both side surfaces in a direction perpendicular to the V-shaped grooves 13a, 13b. 14
It has a, 14b and external openings 15a, 15b. Valve body 11a,
11b has a spherical shape and is formed of a magnetic material metal such as iron, and its diameter is 14a, 14b on the gas chamber side.
It is slightly larger than the diameter of the outer openings 15a and 15b.
Further, the electromagnetic coils 12a, 12b, 12c, 12d are provided in the vicinity of the respective openings so that magnetic force can be applied to the valve bodies 11a, 11b. Although not shown, the electromagnetic coil 12
The a, 12b, 12c and 12d have adjusting means for adjusting the magnetic acting force for displacing the valve bodies 11a and 11b.

Next, the operation will be described with reference to FIGS. When no current is flowing through the electromagnetic coils 12a, 12b, 12c, 12d, the valve bodies 11a, 11b are located in the V-shaped grooves 13a, 13b as shown in FIG. 2, and the gas storage chamber side openings 14a, 14b are located. The outer openings 15a and 15b are open.

Now, when a current is applied to the electromagnetic coils 12a, 12d, the valve elements 11a, 11b are attracted to the electromagnetic coils 12a, 12d, adhere to the openings 15a, 14b, respectively, and are closed. At this time, the electromagnet block 4 is energized to move the mover block 6
When reciprocating, the diaphragm 5 also reciprocates,
As a result, the gas in the gas storage chamber 1 expands and compresses. When the gas inside the gas storage chamber 1 is compressed to a high pressure, the valve body 11b is separated from the opening 14d by the gas pressure and a gap is opened in the opening 14d, and the gas is exhausted to the outside through the nozzle 7b. To be done. On the contrary, when the gas inside the gas storage chamber 1 expands to a low pressure, the valve body 11a is separated from the opening 15a by the gas pressure to open a gap in the opening 15a, and the gas passes through the nozzle 7a. Inhaled into the gas storage chamber 1. That is, the function of an intake / exhaust pump in which the nozzle 7a takes in air and the nozzle 7b takes out air works.

On the other hand, when a current is passed through the electromagnetic coils 12b and 12c, the valve bodies 11a and 11b are attracted to the electromagnetic coils 12b and 12c, and are attached to the openings 14a and 15b, respectively, and closed. At this time, when the gas inside the gas storage chamber 1 is compressed, the valve body 11a is separated from the opening 14a by the gas pressure and the opening 14a
A gap is opened in a and the gas is exhausted to the outside through the nozzle 7a. On the contrary, when the gas inside the gas storage chamber 1 expands, the valve body 11b is separated from the opening 15c by the gas pressure to open a gap in the opening 15c, and the gas passes through the nozzle 7b to the gas storage chamber 1. Inhaled. That is, the function of an intake / exhaust pump in which the nozzle 7b inhales and the nozzle 7a exhausts works. Therefore, the intake side and the exhaust side of the nozzles 7a and 7b can be easily switched. Since such an operation is performed, it is possible to switch the intake / exhaust path of the intake / exhaust of the device to be sucked / exhausted without changing the connection of the piping.

However, the force by which the electromagnetic coils 12a, 12b, 12c, 12d attract the valve bodies 11a, 11b must not be too strong, and when the gas storage chamber 1 repeatedly expands and compresses, the valve pressure is increased by the gas pressure. The bodies 11a, 11b must be of a size that allows them to absorb and exhaust gas, forming a gap slightly apart from the openings 14a, 14b, 15a, 15b. Moreover, the electromagnetic coils 12a, 12b,
By changing the current supplied to 12c, 12d, the electromagnetic coil 12a,
By adjusting the magnetic force of 12b, 12c, 12d,
The force of b closing the openings 14a, 14b, 15a, 15b changes.
As a result, the amount of movement of the valve elements 11a and 11b due to the gas pressure changes, and the amount of air gap can be changed, so the amount of intake and exhaust changes.

Although the valve bodies 11a and 11b were made of a magnetic material metal and operated by the magnetic force of the electromagnetic coils 12a, 12b, 12c and 12d, the valve bodies 11a and 11b were formed of magnets to form the valve 9a. It is also possible to operate by moving the metal of the magnetic material to the outside of 9b. Further, the shape of the valve bodies 11a, 11b is not limited to a spherical shape, and may be a thin plate shape. Further, the expansion / compression member 2 may be not only one that uses reciprocating motion using an electromagnet but also one that uses a motor and an eccentric shaft. In short, if the gas in the gas storage chamber 1 can be expanded / compressed. Good.
Also, the flow rate of intake and exhaust can be changed by changing the hole diameter of each nozzle. Furthermore, in this embodiment,
Although two nozzles are provided in one gas storage chamber 1, it is of course possible to use only one nozzle. The adjusting means for adjusting the magnetic acting force can also be realized by moving the position of the electromagnetic coil.

Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, three or more nozzles are provided in one gas storage chamber, and the description of the portions common to the first embodiment will be omitted.

FIG. 5 shows a case in which a current is passed through the electromagnetic coils 12a, 12d, 12f. The nozzle 7a is for intake and the nozzles 7b, 7c are for exhaust. Further, FIG. 6 shows the electromagnetic coils 12b, 12
This is the case when current is applied to c and 12e, the nozzle 7a is for exhaust,
Nozzles 7b and 7c are for intake.

With such a structure, it is possible to intake or exhaust air at the same time by connecting to a plurality of devices to be inhaled or exhausted. Further, by adjusting the method of flowing the current to the electromagnetic coil, it is possible to make one of the devices to be sucked and discharged be intake and the other device to be sucked and discharged to be exhaust.

Next, a third embodiment of the present invention will be described with reference to FIGS.
It will be described based on. In this embodiment, a valve holding means is provided so that the valve body does not close the opening when no current is applied to the electromagnetic coil, and the description of the portions common to the first embodiment will be omitted.

Reference numeral 16 is a valve holding means, which is a second electromagnetic coil.
It is composed of 17, a holding plate 18, and a spring 19. Second
The electromagnetic coil 17 is arranged so as to work in common with the valves 9a and 9b. As shown in FIG. 9, the holding plate 18 has a mesh-like disc shape and is made of resin. A spring 19 is provided below the holding plate 18.

With such a structure, when the intake / exhaust pump is operating, a current is also flowing through the second electromagnetic coil 17, and the holding plate 18 compresses the spring 19 to compress the valve element. It is housed in the cases of rooms 10a and 10b. However, when the operation of the intake / exhaust pump is stopped, the energization of the second electromagnetic coil 17 is stopped, the holding plate 18 projects into the internal space of the valve body chambers 10a, 10b, and the valve bodies 11a, 11b move. Hold it like not. However, the magnetic force of the second electromagnetic coil 17 is
It is assumed that it does not affect the operation of the valve bodies 11a and 11b when electricity is supplied to the 12a, 12b, 12c and 12d.

Next, a fourth embodiment of the present invention will be described with reference to FIG. This embodiment is a simplification of the valve holding means of the third embodiment.

Reference numeral 20 denotes a magnet, the magnetic force of which is the valve body 11a,
V-shaped groove 13a of the valve body chamber 10a, 10b,
It is provided outside 13b.

With this structure, the electromagnetic coils 12a, 12b, 12c, 12d are de-energized and the electromagnetic coil 12
When the magnetic forces of a, 12b, 12c and 12d do not act, the valve bodies 11a and 11b are held in the V-shaped grooves 13a and 13b by the magnetic force of the magnet 20, and the valve bodies do not move even if the intake and exhaust pumps are tilted.

The V-shaped grooves 13a and 13b are also a kind of valve holding means, and if the magnet 20 is not provided and the valve body chambers 10a and 10b are not tilted when the electromagnetic coil is not energized, the valve body 11a, 11
b stays in the V-shaped grooves 13a, 13b, and the openings 14a, 14b, 15a, 15b
Works effectively as a mechanism that does not block

Next, a fifth embodiment of the present invention will be described with reference to FIGS.
It will be described based on. In this embodiment, one valve body has two
Since the individual valve bodies are provided, the description of the portions common to the first embodiment will be omitted.

Reference numeral 21 denotes a ventilation plate, which is made of resin and has a mesh shape, and is provided at substantially the center of the valve body chambers 10a and 10b.
Spherical valve bodies 11a, 11b, 11c, 11d are provided on the left and right of the ventilation plate 21, and each has a diameter slightly larger than the diameter of the openings 14a, 14b, 15a, 15b.

With this configuration, when no current is flowing through the electromagnetic coils 12a, 12b, 12c, 12d,
As shown in FIG. 11, the valve bodies 11a, 11b, 11c, 11d are V-shaped grooves 13a, 13
Located in b.

Now, when a current is applied to the electromagnetic coils 12a, 12d, the valve elements 11a, 11d are attracted to the electromagnetic coils 12a, 12d and adhere to the openings 15a, 14b, respectively, to close them. The valve bodies 11b and 11c remain in the V-shaped grooves 13a and 13b. At this time, when the gas inside the gas storage chamber 1 is compressed, the valve body 11d is separated from the opening 14b by the gas pressure to open a gap in the opening 14b, and the gas is exhausted to the outside through the nozzle 7b. . On the contrary, when the gas inside the gas storage chamber 1 expands, the valve body 11a is separated from the opening 15a by the gas pressure to open a gap in the opening 15a, and the gas passes through the nozzle 7a and enters the gas storage chamber 1. Inhaled. That is, the function of an intake / exhaust pump in which the nozzle 7a takes in air and the nozzle 7b takes out air works.

On the other hand, when a current is passed through the electromagnetic coils 12b and 12c, the valve bodies 11b and 11c are attracted to the electromagnetic coils 12b and 12c, and are attached to the openings 14a and 15b, respectively, and closed. At this time, when the gas inside the gas storage chamber 1 is compressed, the valve body 11b is separated from the opening 14a by the gas pressure and the opening 14a is opened.
A gap is opened in a and the gas is exhausted to the outside through the nozzle 7a. On the contrary, when the gas inside the gas storage chamber 1 expands, the valve body 11c is separated from the opening 15b by the gas pressure to open a gap in the opening 15b, and the gas passes through the nozzle 7b to the gas storage chamber 1. Inhaled. That is, the function of an intake / exhaust pump in which the nozzle 7b inhales and the nozzle 7a exhausts works. Therefore, since the distance between the valve body and the opening is short, the nozzle 7
The intake side and exhaust side of a and 7b can be switched.

[0046]

The intake / exhaust pump according to the first aspect of the present invention can be switched to perform an intake operation or an exhaust operation by connecting one nozzle to a device for intake / exhaust. Operation and exhaust operation can be selected, improving usability.

In addition to the effect of claim 1, the intake and exhaust pump according to claim 2 can connect at least two nozzles to a device for intake and exhaust in advance, so that the intake and exhaust pump can be connected without switching the pipe connection. You can freely exhaust.

Further, in addition to the effects of the first or second aspect, the intake / exhaust pump according to the third aspect is such that the valve body is attracted by the magnetic force of the electromagnetic coil, so that the valve body is kept at a constant pressure at the gas storage chamber side. Since the opening part or the external opening part can be closed, the gas path can be easily sealed.

Further, in addition to the effect of claim 3, the intake and exhaust pump according to claim 4 changes the closing force of the opening by the valve body, so that the amount of void in the opening changes due to gas pressure, The displacement can be adjusted easily.

Further, the intake and exhaust pump according to the fifth aspect has the effect of the third aspect, and since the valve element rolls, it is easy to move, so that the opening can be easily closed and opened.

In addition to the effects of the fifth aspect, the intake / exhaust pump according to the sixth aspect allows the natural ventilation because the valve element rolls away from the opening when the electromagnetic coil is not energized.

In addition to the effect of claim 5, the intake / exhaust pump according to claim 7 has the effect that the valve body does not close the opening by the valve holding means when the electromagnetic coil is not energized. Natural ventilation is possible even when tilted.

In addition to the effect of claim 3, the intake and exhaust pump according to claim 8 shortens the distance between the valve element and the opening, so that the intake operation and the exhaust operation of the nozzle can be switched in a short time. You can

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an intake / exhaust pump showing a first embodiment of the present invention.

FIG. 2 is a sectional view of the intake / exhaust pump when the valve body is open.

FIG. 3 is a cross-sectional view of the valve body in operation.

FIG. 4 is another sectional view of the valve body in operation.

FIG. 5 is a sectional view of the intake / exhaust pump during one operation of the valve body according to the third embodiment of the present invention.

FIG. 6 is a cross-sectional view at the time of another operation.

FIG. 7 is a cross-sectional view of an intake / exhaust pump during operation of the valve body according to the fourth embodiment of the present invention.

FIG. 8 is a sectional view of the valve body when it is open.

FIG. 9 is a plan view of a holding plate of the valve body.

FIG. 10 is a sectional view of the valve body according to the fifth embodiment of the present invention when the valve body is open.

FIG. 11 is a sectional view of the intake / exhaust pump when the valve body according to the second embodiment of the present invention is opened.

FIG. 12 is a cross-sectional view of the valve body during operation.

FIG. 13 is another sectional view of the valve body in operation.

[Explanation of symbols]

 1 gas storage chamber 2 expansion / compression member 3 casing 4 electromagnet block 5 diaphragm 6 mover block 7a, 7b, 7c nozzle 8a, 8b communication passage 9a, 9b valve 10a, 10b valve body chamber 11a, 11b, 11c, 11d valve body 12a, 12b, 12c, 12d, 12e, 12f Electromagnetic coil 13a, 13b V-shaped groove 14a, 14b Gas storage chamber side opening 15a, 15b External side opening 16 Valve holding means 17 Second electromagnetic coil 18 Holding plate 19 Spring 20 magnet 21 vent plate

Claims (8)

[Claims] 1. A gas storage chamber that stores a gas for intake and exhaust, an expansion / compression member that expands / compresses the gas in the gas storage chamber, and a communication passage that connects the gas storage chamber and the outside through a communication path. An intake / exhaust pump comprising: a nozzle having a valve for controlling the flow of gas in a passage, wherein the valve of the nozzle is configured so that an intake operation or an exhaust operation can be selected by a switching operation. 2. The intake / exhaust pump according to claim 1, wherein at least two nozzles are provided and one of them is configured to perform an intake operation and the other is configured to perform an exhaust operation. 3. A valve body for displacing a valve of the nozzle by a magnetic action, a valve body chamber for accommodating the valve body so as to be displaceable, and having a gas storage chamber side opening and an outer side opening, and a valve. An electromagnetic coil for generating an electromagnetic force in two directions so that the body closes the opening of the gas storage chamber or the opening of the outer side with a constant pressure. Exhaust pump. 4. The intake / exhaust pump according to claim 3, wherein the electromagnetic coil has an adjusting means for adjusting a magnetic acting force for displacing the valve body. 5. The intake / exhaust pump according to claim 3, wherein the valve body is formed into a substantially spherical shape. 6. The intake / exhaust pump according to claim 5, wherein a space between both openings of the valve body chamber is formed in a substantially V shape. 7. The intake / exhaust pump according to claim 5, wherein the valve of the nozzle is provided with valve holding means for holding the valve body at a position where the opening is not closed when the electromagnetic coil is not energized. 8. The suction valve according to claim 3, wherein the valve of the nozzle is provided with a vent plate at a substantially central portion of the valve body chamber and one valve body is provided on each side of the vent plate. Exhaust pump.