JP2518149Y2 - Pressure regulator - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) [0001] The present invention relates to a pressure regulator that discharges a pressurized fluid to the outside and regulates its pressure, and in particular, a compressor, a pressure regulator, and an air distributor. TECHNICAL FIELD The present invention relates to a pressure regulator suitable for a pneumatic massage device having a device and an airbag.

(Problems to be solved by the conventional technique and device) As shown in the use state diagram shown in FIG. 4 and the layout diagram shown in FIG. The compressed air supply device 22 is connected to the compressed air supply device 22 with a remote controller 23 or the like for adjusting a massage state by the user in a supine or prone posture.

Further, the pressurized air supply device 22 has a compressor 24, an air distributor 25, and a pressure regulator 26, and is arranged as shown in FIG.

When the remote controller 23 is operated to operate the compressor 24 to generate compressed air, the compressed air is
27 to the air distributor 25, and by the action of the air distributor 25, the pressurized air is sequentially supplied to and exhausted from the plurality of airbags 21 through the supply / exhaust pipe 28, and the series of airbags 21 is rhythmically expanded and contracted. This series of airbags is made by repeating exercise.
An effective massage is performed by directly applying a pressure stimulus to the body of the user lying on his back or lying down on the body 21 to prevent the body from being overpowered.

The pressure regulator 26 is connected to a pipe 29 branched from the pipe 27, and a part of the pressurized air sent from the compressor 24 is discharged to the outside from the pressure regulator 26.
By adjusting the pressure of the pressurized air sent to the air distributor 25 and adjusting the air pressure inside the airbag 21, a comfortable pneumatic massage that is adapted to the physical condition of the user's muscles, tendons, etc. is performed. Yes, the air pressure is adjusted by a remote controller
It is designed to be operated by operating 23.

FIG. 6 is a conventional example of the pressure regulator 26, which is Japanese Patent Publication No. 60-551.
It is a longitudinal cross-sectional view which shows the pressure regulator shown by the 39th publication.

In FIG. 6, 30 is a solenoid, 31 is an electromagnetic coil,
32 is a plunger, which is a lead wire 33 of the electromagnetic coil 31.
Is connected to a variable resistor built in the remote controller 23, and the voltage and current applied to the electromagnetic coil 31 are adjusted by this variable resistor to control the strength of the exciting force of the electromagnetic coil 31.

Further, 34 is a valve body and 35 is a sliding valve.
Is connected to the plunger 32 by a pin 36, and is adapted to reciprocate integrally with the plunger 32.

A pressurizing air inlet 34a is formed in the valve body 34, and the inlet 34a is connected to a pipe 29.

A valve seat 34b is formed by opening one end of the valve body 34 in a conical shape, and an outer peripheral surface of the one end of the sliding valve 35 spreads in a conical shape, and a packing 37 is attached to a part thereof. Therefore, when the sliding valve 35 moves rightward in FIG. 6 together with the plunger 32, the packing 37 abuts the valve seat 34b, and the pressurized air sent from the inlet 34a is not discharged.

When the sliding valve 35 moves to the left in the figure together with the plunger 32, the pressurized air sent from the inlet 34a is discharged from the gap between the valve seat 34b and the packing 37, and the discharged amount is It increases or decreases according to the amount of movement of the sliding valve 35. The amount of movement of the sliding valve 35 is such that the pressure of the pressurized air causes the sliding valve 35 to move to the left and the exciting force of the electromagnetic coil 31 moves the plunger 32 to the right. Is adjusted to a balanced position, and the exciting force of the electromagnetic coil 31 is adjusted by the variable resistor built in the remote control 23 to adjust the voltage and current to adjust the amount of movement of the sliding valve 35, and the pressure regulator 26 The amount of pressurized air leaking from the outside is adjusted to adjust the pressure of the pressurized air sent to the airbag 21 through the air distributor 25.

However, in the pressure regulator 26 having the structure as shown in FIG. 6, when the electromagnetic coil 31 is energized for a long time, the electromagnetic coil 31 heats up to a high temperature and the exciting force is lowered, so that the pressure regulator 26
The amount of pressurized air discharged from the
There is a problem that the adjustment of the air pressure becomes unstable, such as the air pressure of 21 decreases.

The pressure regulator of the present invention is intended to solve the above-mentioned problems and to provide a pressure regulator having more excellent functions.

Configuration of the Invention (Means for Solving the Problem) In order to achieve the above-mentioned object, the pressure regulator of the present invention is configured as follows.

A valve chamber having a valve body fixed to a valve shaft driven by a solenoid and having an inlet on a chamber wall for receiving a pressurized fluid from the outside, and a valve chamber facing the valve shaft direction with the valve body interposed therebetween, A pair of valve seat openings that engage and disengage with the valve body, and fluids that are provided at positions opposite to the valve seats of the respective valve seat openings and that are electrically connected when the valve seat openings and the valve body are disengaged and discharged from the valve chamber The adjusting valve for adjusting the flow rate is provided, and the pressure of the pressurized fluid is adjusted by discharging the pressurized fluid through one of the adjusting valves.

Further, the valve body is fixed to one end of the valve shaft, and the control valve provided at the position opposite to the valve body of the valve seat opening through which the valve shaft is inserted is provided on the side portion of the valve chamber parallel to the valve axis direction. The control valve provided at a position opposite to the valve body of the valve seat opening through which the valve shaft is not inserted may be provided in the valve axis direction so as to face the valve body.

(Operation) The pressure regulator of the present invention constructed as described above operates as follows.

The pressure regulator of the present invention is, for example, as shown in FIG.
It is used by being connected to a pipe branched from the pipe connecting the compressor of the pneumatic massager and the pneumatic distributor.

A part of the compressed air compressed by the compressor enters the inlet through the pipe and flows into the valve chamber.

The valve element fixed to one end of the sliding shaft, which is the valve shaft axially connected to the solenoid plunger, is a pair of valves that are concentric with the sliding shaft and open in the valve chamber by the action of the solenoid. Since any one of the seat openings is closed, the pressurized air that has flowed into the valve chamber is discharged from the open valve seat opening to the outside via the adjusting valve communicating with the valve seat opening.

The pair of adjusting valves mounted so as to communicate with each of the pair of valve seat openings are adjusted so that one of them has a relatively small discharge amount and the other has a relatively large discharge amount. In this way, when the valve body opens one valve seat opening and closes the other valve seat opening, the amount of pressurized air discharged from the pressure regulator is small and the air bag passes through the distributor. The amount of pressurized air sent into the air bag increases, and the air pressure inside the air bag becomes relatively high. On the contrary, when the valve body opens the other valve seat opening and closes the other valve seat opening, the amount of the pressurized air discharged from the pressure regulator increases, and the pressure air is discharged via the distributor. Since the amount of pressurized air sent into the airbag is small, the air pressure inside the airbag becomes relatively low.

The pressure regulator of the present invention acts as described above to perform pressure regulation in two stages of high pressure and low pressure, and the remote controller regulates the cycle of rhythmic switching of the pressurized air by the air distributor. By doing.

(Example) Next, one Example of the pressure regulator of this invention is described based on drawing.

1 is a plan view, and FIG. 2 is XX of FIG.
FIG. 3 is a cross-sectional view taken along the line YY of FIGS. 1 and 2.

1 to 3, 1 is a pressure regulator, 2 is a regulator body, 3 is a solenoid, 4 is a plunger of the solenoid 3, 5 and 6 are needle type regulating valves, 7 is a valve shaft, 8
Is a valve body, 9 and 10 are valve seat openings, and 11 is a muffling element.

The valve body 8 is integrally formed with one end of a valve shaft 7 axially connected to the plunger 4 by a pin 12, and the outer peripheral surface thereof is covered with rubber 13.

The regulator body 2 is a valve chamber that is open outward and has an inlet 2a.
2b and the valve chamber 2b side, the valve shaft is inserted, and the valve seat opening 9 which engages and disengages with the valve body 8 is provided further on the valve shaft side than the valve seat opening 9, that is, at the position opposite to the valve body 8. It has a discharge port 14 and a sliding hole 15 through which the valve shaft 7 slides, and the solenoid 3 is fixed with a machine screw 16.

Further, in the valve chamber 2b of the regulator body 2, a needle type adjusting valve 6 is provided on the side opposite to the valve seat opening 9 with respect to the valve body 8 and a valve seat opening 10 through which the valve shaft is not inserted around the inlet 6a. Are formed so as to face each other and are attached by machine screws 17. On the side surface 2c of the adjuster body 2 parallel to the valve shaft 7, another needle type adjusting valve 5 is attached with a machine screw 18 with its inlet 5a communicating with the outlet 14.

In this way, the pair of opposed valve seat openings 9 and 10 are
A single valve body 8 that is activated by the reciprocating motion of the plunger 4.
It is designed to open and close alternately.

Further, a muffling element 11 is attached to the exhaust ports 5b and 6b of each of the two adjusting valves 5 and 6.

In FIG. 5, the compressor 22 of the pneumatic massage device
And pipe 29 from the pipe that connects
Connect the pressure regulator 26 to this pipe 29 to
The pressurized air from 22 is supplied to or exhausted from each airbag 21.

Next, the operation of the pressure regulator 1 of the above embodiment shown in FIGS. 1 to 3 when used as a pressure regulator of the pneumatic massager shown in FIGS. 4 and 5 will be described.

A part of the compressed air pressurized by the compressor 22 enters the inlet 2a through the pipe 29 and enters the valve chamber 2b.

The valve body 8 fixed to one end of the valve shaft 7 axially connected to the plunger 4 of the solenoid 3 is inserted into the valve shaft 7 in the valve chamber 2b by the action of the solenoid 3, and the valve body 8 is concentric therewith. Since either one of the pair of valve seat openings 9 and 10 facing each other across the valve is closed, the pressurized air flowing into the valve chamber 2b is released from the opened valve seat opening 9 or 10. ,
It is discharged to the outside via the adjusting valve 5 or 6 communicating with it.

One of the pair of adjusting valves 5 and 6 mounted so as to communicate with each of the pair of valve seat openings 9 and 10 is adjusted so that the discharge amount is relatively small, and the other is adjusted so that the discharge amount is relatively large. When the valve body 8 opens one valve seat opening 9 or 10 and closes the other valve seat opening 10 or 9 by adjusting to 1, the amount of pressurized air discharged from the pressure regulator 1 decreases, Distributor
Since the amount of pressurized air sent to the airbag 21 via 25 increases, the air pressure inside the airbag 21 becomes relatively high. On the contrary, the valve body 8 has the other valve seat opening 10 or 9
When the valve is opened and one of the valve seat ports 9 or 10 is closed, the amount of the pressurized air discharged from the pressure regulator 1 increases, so that the pressurized air is sent to the airbag 21 via the distributor 25. The amount of pressurized air decreases, and the air pressure inside the airbag 21 becomes relatively low.

The pressure regulator 1 of the present invention performs pressure regulation in two stages of high pressure and low pressure in this way.
Since the cycle of the rhythmic switching of the pressurized air by 25 can be adjusted by the remote controller 23, a comfortable air massage can be performed.

In this pressure regulator 1 shown in the embodiment, the solenoid 3 is used only for switching the opening and closing of the valve seat openings 9 and 10, and the exciting force of the solenoid 3 is changed to change the movement amount of the plunger 4. Since it is not adjusted, even if the electromagnetic coil of the solenoid 3 is heated for a long time to reduce the exciting force, the pressure adjusting action of the pressure adjuster 1 is not affected.

Further, even if the pressurized air is abnormally increased due to a failure of the compressor 22 or the like, the valve seat opening 9 or
Since the pressurized air is discharged from either one of the 10 via the adjusting valve 5 or 6, the inside of the airbag 21 will not be abnormally pressurized.

Next, by mounting the muffling element 11 on the exhaust ports 5b and 6b of each of the regulating valves 5 and 6, it is possible to eliminate the unpleasant exhaust sound without the need of providing a special muffling device.

Further, when the structure of the embodiment shown in FIGS. 1 to 3 is adopted, the pair of valve seat openings 9 and 10 can be surely opened and closed alternately by the action of the solenoid 3, and the pair of adjusting valves 5 6 and 6 may be of the same type, and are easy to manufacture, install, adjust and maintain.

Further, the valve body 8 does not have to be one end of the valve shaft, and it is provided in the middle of the valve shaft so that there are two sliding holes sandwiching the valve body 8 and the so-called valve shaft is supported on both sides so that the regulating valve is It may be located on both sides of the valve chamber parallel to the axial direction.

Furthermore, since the pressure regulator of the present invention can perform two-stage arbitrary pressure regulation in which the discharge can be performed from either one of the two regulating valves whose different discharge amounts are adjusted in advance, Its use is not limited to periodic pressure fluctuations.

Effects of the Invention The pressure regulator according to the present invention has the following excellent effects, as is apparent from the above-described embodiment.

(1) By adjusting two adjusting valves, it is possible to set a two-step adjusting air pressure of high pressure and low pressure suitable for pneumatic massage, for example.

(2) Even if the solenoid is energized for a long time and the exciting force of the solenoid decreases, the set pressure does not change because the valve does not need to function as a flow rate control valve.

(3) Abnormal pressure rise can be prevented.

(4) Easy to manufacture, install, adjust and maintain.

(5) Due to the above-mentioned effects, it is most suitable as a pressure regulator of a pneumatic massager.

[Brief description of drawings]

1 is a plan view showing an embodiment of the pressure regulator of the present invention, FIG. 2 is a sectional view taken along the line X--X in FIG. 1, and FIG. FIG. 3 is a sectional view taken along line Y-Y of FIG. 4 and 5 are a usage state diagram and a layout diagram of the pneumatic massage device, and FIG. 6 is a vertical cross-sectional view showing a conventional example of the pressure regulator. 1 ... Pressure regulator, 2 ... Regulator body 2a ... Inlet port, 2b ... Valve chamber 2c ... Side surface, 3 ... Solenoid 4 ... Plunger, 5, 6 ... Regulator valve 5a, 6a ... … Inflow port, 5b, 6b …… Exhaust port 7 …… Valve shaft, 8 …… Valve element 9,10 …… Valve seat port 11 …… Silencing element 14 …… Discharge port, 15 …… Sliding hole

Claims (2)

(57) [Scope of utility model registration request] 1. A valve chamber having a valve body fixed to a valve shaft driven by a solenoid therein and having an inlet for receiving a pressurized fluid from the outside in a chamber wall, and a valve shaft direction sandwiching the valve body. A pair of valve seat openings that face each other and engage and disengage with the valve body, and are provided at positions opposite to the valve bodies of the valve seat openings, and are electrically connected when the valve seat openings and the valve body are disengaged from each other. A pressure regulator, comprising: a regulating valve for regulating the flow rate of the fluid to be discharged, wherein the pressure of the pressurized fluid is regulated by discharging the pressurized fluid through one of the regulating valves. 2. A valve body having a valve body fixed to one end of a valve shaft and provided at a position opposite to a valve body of a valve seat opening through which the valve shaft is inserted, wherein a control valve side is parallel to the valve shaft direction. The control valve provided in the portion and provided at a position opposite to the valve body of the valve seat opening through which the valve shaft is not inserted is provided in the valve axis direction so as to face the valve body. Pressure regulator.