JPH04501096A - diving regulator demand valve - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] diving regulator demand valve This invention relates to a self-contained underwater breathing device, especially one with breathing characteristics to facilitate air inhalation. This invention relates to an improved underwater breathing apparatus regulator (compressed air regulator). With this invention The breathing characteristics are changed by adjusting the demand valve of the regulator.

Regulators are known in the diving industry as critical components of necessary equipment. It is being The regulator works with the pressure reducing valve to regulate the air in the diaper. Decompression The operation is known as the first stage of the regulator, where the air tank and regulator Reduce the air pressure between the regulator and the regulator. Due to the requirements of the diaper, the air is first first stage, then second stage.

This invention is primarily concerned with second stage operation.

The second stage of operation is located near the air discharge end of the regulator and controlled by a demand valve consisting of a spies.

One purpose of this invention is to enable the diaper to inhale air easily. .

There are many different types of regulators. Typical regulation in its most basic form The data includes a housing having a mouthpiece and a mouthpiece located inside the housing. It consists of a demand valve that cooperates with a diaphragm that operates with the help of air. diaphragm Both the valve and the demand valve are actuated by the demand for air. Demand valves are known as poppets. It has a 6-bore element that moves between closed and open positions depending on the air demand. It is. When the poppet is in the closed position, the spring pushes it against the air inlet of the valve. When hit, the air supply is cut off. The spring compression force is applied immediately upstream of the inlet. The pressure is slightly stronger than that of the inlet, so the inlet is blocked.

The poppet moves from the closed position to the open position due to the demand for air. At this time An unbalanced force is acting on the poppet due to a suction force that is stronger than the biasing force of the spring.

The first attempt the regulator user makes when inhaling air, i.e. the poppet The attempt to separate the sealed end of the air from the air inlet is called cracking effort.

Cracking force is necessary to overcome the resisting spring during air demand located at the air intake of the valve against the energy of the biasing spring along with the degree of vacuum It is a function of the dynamic pressure of the air acting on the poppet.

The movement of air is caused by the Venturi effect, as the air moves at high speed when it is inhaled. It is also affected by

Conventional poppets create uneven forces on the air inlet and valve chamber due to their shape. 1. There is a drawback to it.

In traditional devices, when the diaper breathes, the poppet moves to the open position, allowing air to flow through the device. Linear pressure is not enough to support the poppet. Balanced forces cannot be generated to reduce the effort of breathing. In this case, the poppet is maintained in the open position only by vacuum. Therefore, at the end of the breathing cycle, Considerable effort is required which is greatest when the input is at its weakest.

This invention provides a balanced force to the valve, making it a new technology that eliminates the need for effort when inhaling air. By providing a demand valve with an oval shape, the unbalanced forces that exist in conventional demand valves are eliminated. Request improvement or removal.

A further improvement to the demand valve is that the valve has a knob on the outside of the housing for user adjustment. When activated, the vacuum is removed from the C1 air passage and the regulator master It is a coaxial sleeve that guides air to the airpiece. Conventional regulators require a screwdriver. It could not be adjusted without using any tools.

One broad form of the invention has an air passage chamber, an inlet, an outlet, and is pressed against the inlet. The poppet consists of an internal demand valve, and the poppet The demand valve consists of a first flange and a second flange that receive the linear pressure or bending of the road. is used, air from the inlet assisted by a vacuum hits the first hand. Forced against the step, the air from the gap also hits the second flange, causing the second flange to The lunges cause the air to move away from the outlet and act as a biasing force when drawing air. (This is characterized by a reduction in the amount of effort required.)

The broadest form of this invention is Breathing used for breathing underwater! / regulator, has a breathing chamber and a valve, and is The air is moved from the inlet of the valve to the outlet by the user's command, and from there to the housing. 2. Move it to the result of the number, and move it to the user's lungs through the mouse base. housing and a movable diaphragm that creates a vacuum in the housing depending on the amount of air. and a valve is slidably disposed therein to act against the bias, the first and second a poppet consisting of an elongate member having two ends and a poppet attached to the elongate member; at least two baffles formed integrally with each other and located midway between the ends; and when air is requested by the user of the regulator, air is transferred through the valve. the baffle and actuate the valve upon demand for air. It is characterized by a reduction in the amount of effort required by the user.

In a preferred embodiment, the demand valve comprises a sleeve coaxial with the air passage chamber. drum The purpose of the It is to supply. The drum also allows air to be drawn from outside the housing by the user. Increases venturi flow of air by allowing selective control negates the vacuum effort according to the requirements of

The invention is illustrated in accordance with the preferred but non-limiting embodiments and accompanying drawings. This will be explained in more detail below.

Figure 1 shows a simple longitudinal section of a conventional demand valve when the valve poppet is in the closed position. It is a front view.

Figure 2 shows a simple longitudinal section of a conventional demand valve when the valve poppet is in the open position. It is a front view.

FIG. 3 shows a demand valve according to one embodiment of the invention when the valve poppet is in the closed position. FIG. 3 is a simple longitudinal cross-sectional view.

FIG. 4 shows a demand valve according to one embodiment of the invention when the valve poppet is in the open position. FIG. 3 is a simple longitudinal cross-sectional view.

Figure 5 shows a cross section of the regulator with the demand valve when the poppet is in the closed position. FIG.

Figure 6 shows a cross section of the regulator with the demand valve when the valve is in the open position. FIG.

Figure 7 is a simple cross-sectional view of a conventional regulator that uses baffles to bend the air. It is.

FIG. 8 is a simplified cutaway of a regulator according to one embodiment of the invention showing the coaxial sleeve. It is a front view.

Figure 9 shows a regulator with externally operable coaxial sleeve at maximum flow rate. FIG.

Figure 10 shows the regulator of Figure 9 with externally operable coaxial sleeve at minimum flow rate. FIG.

FIG. 1 shows a part of a conventional demand valve 1. The demand valve 1 has a housing having an inlet 3 and an outlet 4. 2. The demand valve also has a poppet 5 within the housing. here , the poppet is in the closed position and is pushed into the inlet 3 under the biasing action of the helical spring 6. It is assigned.

FIG. 2 shows the demand valve of FIG. 1, but now air passes through the chamber 7 of the housing 2. The poppet 5 is shown separated from the inlet 3 to allow access. Key points of Figure 1 In the valve seeking structure, the compressive force generated by the spring 6 is greater than the air pressure force acting on the inlet 3. is also slightly stronger. This forces the poppet 5 against the inlet 3, eliminating the need for air. The entrance closes when the time comes.

Users of conventional regulators with demand valves with poppet 5 inside When attempting to inhale, a vacuum is created which causes the diaphragm to press lever 18 to allow air to enter the room 7. At the same time, Poppet 5 It retracts against the force of the spring, allowing the air to pass through the chamber 7 and exit through the outlet 4. enable. At this time, the force of the spring gradually increases as it is compressed. Therefore, the force of the demand valve becomes unbalanced. For this reason, pope caused by the inflow of air into the inlet 3 The air force acting on cut 5 decreases. This reduces the air pressure acting on the poppet. Do a little. This 2 is exacerbated by the effect that air exits through the outlet 4. this power Due to the relationship between The effort required to maintain the poppet 5 will gradually increase and you will not be able to open the poppet 5 unless you use a large force. Unable to maintain position. This is the energy of the user who inhales the air. occurs when the energy is at its weakest, i.e. at the end of the suction movement.

thus reducing the suction effort required of the user when requesting air. It would be desirable to provide a demand valve that can.

FIG. 3 shows a portion of a demand valve according to a preferred embodiment of the invention. This demand valve is new Newly shaped poppet valve 10 and external adjustment to help direct air toward the user's mouth with a possible outer coaxial sleeve 17.

The demand valve of FIG. 3 has an internal inlet 9 similar to the inlet 3 of the prior art valve shown in FIG. It consists of a valve housing 8 with a valve housing 8. With the help of the biasing spring 11, the valve moves in the direction of the inlet 9'1. It also has a poppet 10 that is once energized. Valve is linkage with conventional valve The regulator valve is activated when air is requested by the user of the demand valve. Lever 12 responsive to vacuum assisted movement of the eaphragm (see Figures 5 and 6) It also has

The demand valve of this invention differs from conventional demand valves in the shape of the poppet 10. In Figure 3 As shown, the poppet 10 has a first slot or flange 14 and a second slot. It consists of a long shaft 13 with a full or flange 15. This kind of poppet structure Due to its structure, the forces generated around the pope-soto when the user of the request valve requests air are Change. Figure 3 shows a demand valve according to the invention with the poppet valve in the closed position. . When the user requests air, a diaphragm (not shown) in the regulator is activated. ), the arm 12 allows air to flow in from the inlet 9. Demand valve configuration in open position The structure is shown in Figure 4. When air is requested by the user, the air passes as described above. Pass through Route 9. The movement of air under pressure produces several effects. The first is The reaction of the force applied by the biasing tip 11, the second is when air is applied to the flange or buff. Modification of the narrower flange or baffle 15 to impinge on the wide side of the tile 14.

The effect of the force thus created is that the air is forced by the flange 14 around the sides of the flange 14. Increasing or maintaining the pressure on the flange or tsuku-sofuru 15 when bending It is to do so. At this time, the air is discharged through the outlet 16 provided in the wall of the housing 8. and escapes from the orifice 19 located in the coaxial sleeve 17 (A).Poppet 1 0 means that the air will exit from “=’-o” 16 or collide with the surface of baffle 15. It is composed of The air collides with the baffle because the spring 11 is compressed by air pressure. As the force increases, the force acts against the increase in the biasing force applied by the spring. air bag The impingement on the full 15 ensures air loss at the outlet 16.

This overall effect maintains the poppet with the user's effort requiring air. The purpose is to reduce the air line force and optimize the force balance.

A regulator having a demand valve 20 whose shape is proportional to the inhalation by the user in FIG. A plan view showing a cross section is shown. In this configuration, demand valve 20 is directed toward orifice 27. poppet 2 whose orifice 22 is closed by the poppet end 23] , is shown. Linear pressure from a supply tank (not shown) is applied to supply line 24. available. The linear pressure applied to line 24 is approximately 28 Bonds force. this power To act oppositely, the biasing spring 25 pulls the end of the poppet 26 against the end 2 of the poppet 21 Force f=1 in the opposite direction to the force applied by the linear pressure of 3.

Although the pressure applied by the biasing spring 25 is as close as possible to a linear pressure, Slightly more than linear pressure is required to ensure that the poppet remains in the closed position when not in use. is the ideal.

Figure 6 shows the lever of Figure 5 in the air request or inhalation position when the user is requesting air. Indicates regulator. Due to the air requirement, the end 23 of the poppet 21 is connected to the diaphragm 2. 8 to a position away from the orifice with the aid of the vacuum created in the chamber 27. I feel tense.

The biasing force of the spring is ideally slightly greater than the linear pressure, so the poppet is away from the mouthpiece 22 to allow air to flow freely towards the mouthpiece 29. To do so, additional effort must be applied to the poppet 21. help this process Once the flange 30 is located on the main shaft 31 of the poppet 21 and separated, , the linear pressure has no effect on directing or biasing the force onto the poppet.

According to a preferred embodiment of the invention, the setting of the flange 31 allows the incoming air to A collision surface is provided and a linear pressure is maintained on the poppet so that the poppet Being further away from the entrance reduces user effort when requesting air.

5 and 6 illustrate flanges provided on a poppet according to one embodiment 7 flows from the orifice 22 and the passageway to the mouthpiece 29 via the orifice 32. A flange can be made up of multiple flanges as long as the incoming air can be blocked. good. The flange is positioned when the poppet is in the fully open position at orifice 32. air impinges on the flange 31 and passes through the orifice 32 into the mouthpiece. Ideally, you should head towards two locations.

As a result, there is a variation in the linear pressure within the valve as well as between the linear pressure hitting the baffle and the piascus. This will result in a system with a well-balanced system of power. Thus, to require air The effort required from the user can be reduced. Flange or bar on poppet The effect of the presence of a fuffle means is that breathing when unbalanced forces are demanding air When this occurs in a system, the selection of a spring, which is essential for conventional valves, is no longer necessary. It is that you are.

Thus, the linear pressure exerted on end 23 of poppet 21 in the poppet's closed position It is maintained by the pet, but rests on the flange 30 in the open position. Deformation of poppet valve In addition to the configuration, the improved valve is also rotatable concentrically about the housing 8. A concentric sleeve 17 (see FIGS. 3 and 4) is provided. Behalf , the housing 8 is connected to the sleeve 17 so that the entire demand valve section can rotate integrally. can be fixed to

This directs the air towards the mouthpiece of the regulator. improved airflow without the aid of baffles required in prior art. Figure 7 shows a baffle used for air deflection. FIG. 2 is a vertical cross-sectional view schematically showing a conventional regulator. This baffle configuration Selected according to the angle of the airflow hitting the full.

FIG. 8 shows a regulation showing the ventilation promotion ability of the demand valve according to the present invention provided therein. FIG. This regulator also allows free rotation of the demand valve. There is no baffle for the air directed by the rotation, and as a result, the The user can select the direction of airflow from the demand valve as required. can be understood.

Disadvantages of the configuration of the breathing /< Soflu as shown in Figure 7 showing a cross section of the regulator is a baffle or screen that directs air toward the regulator's mouthpiece. It is to act in a way that obstructs the flow. This also causes a change in direction, causing the air to This will slow down the entry of air into the regulator mouthpiece. Ru. This problem is solved by the omission of the baffle and the function provided to the demand valve of the present invention. External selection of the direction of air flow towards the mouthpiece of the regulator The orientation can be rotated in the regulator. As shown in Figure 6, the rotational capacity of the demand valve Air can be directed in any direction within a range of 0 to 360 degrees by force, so A free air path to the user's mouth can be created.

FIG. 9 is a sectional view showing the regulator 33 equipped with the demand valve 34, and the air is 5 from the demand valve toward the mouthpiece 36.

FIG. 10 shows that air flows in the direction of arrow 37 and is caused by diaphragm 39 to A regulator having a demand valve 34 configured such that the vacuum effect occurring within the regulator is prevented. The data 33 is shown.

This demand valve 34 is controlled by a knob 41 provided outside the regulator 33. This is done by the actuated sleeve 40.

Thus, the user cannot change the direction of airflow to the mouthpiece during use. can.

In conventional technology, the above adjustments are made by inserting the airflow into the regulator before use. This is done only by using an instrument that selects the direction.

According to the demand valve of the present invention, the user can press the four-part knob 41 to release air at any time during use. You can select the boost.

This way, you can get the breathing benefits of high-velocity airflow when you need it, and you can When air is requested through the mouthpiece 36, the diaphragm 39 Vacuum effects occurring within the bar 38 can be prevented.

Thus, FIG. A demand valve 34 with a sleeve 40 is shown.

By selecting the configuration as shown in Figure 10, even when a small amount of air is required, Well done by the user.

When diving, different users use different skies to maintain suitable breathing dust. Requires energy. Thus, during use according to special circumstances, an adjustable manual It is desirable to be able to control air breathing.

As the diaper dives deeper, the air becomes more concentrated, which compensates for the regulation of air breathing. Need ideal features to compensate. This improves the demand valve 34. This will be achieved.

This adjustment also allows the free flow of unwanted air to be prevented or can be reduced.

Furthermore, if you breathe in a large amount of air while diving, you may feel nauseous or feel unwell. The guys know. In the improved demand valve, the valve adjusts the individual according to the required air volume. Can be adjusted as needed to limit the amount of free air flowing to the user This can solve the above problem.

Various modifications and changes may be made without departing from the spirit and scope of the invention as described above. Those skilled in the art will easily understand that this invention is possible.

FIG, /F/Cy-2 Nori 8G, IQ international search report us4[1340[16shi 2766V6

Claims (16)

[Claims] 1. The main housing has a breathing chamber and a valve, and the interior of the housing can be adjusted as required by the user. It consists of a movable diaphragm that creates a vacuum, and air enters the valve according to the user's request. from the mouth to the outlet of the valve, then to the outlet of the housing, and then through the mouthpiece. The type of substance that enters the user's lungs, and is a respiratory regulator used for breathing underwater. the valve has a poppet and at least one air baffle; the poppet is slidably disposed inside the valve and acts against the biasing force; and comprising an elongated member having first and second ends, the elongated member having at least one An air baffle is attached to this elongate member at a location midway between the ends. It is formed integrally with a long member and the air is required by the user of the regulator. air moves through the valve and continuously hits at least one baffle; This reduces the user effort required to actuate the valve upon request for air. A regulator used for breathing underwater. 2. Depending on the air requirement, the first end of the poppet is directed from the inlet line to the air chamber within the valve. 2. The regulator of claim 1, wherein said regulator generates or stops said air flow. 3. The second end is a lever that operates the poppet in response to vacuum-dependent diaphragm movement. 3. The regulator of claim 2 in engagement with the bar arm. 4. the valve further comprising means for directing the air flow with the aid of a venturi; This means consists of a hole in the valve body and a rotatable coaxial sleeve around the valve body. The coaxial sleeve has a hole that selectively partially or completely overlaps the hole in the valve body. Increase, decrease, or eliminate free flow of air through the regulator 4. The regulator according to claim 3, further comprising an aperture for opening the regulator. 5. 5. The regulator of claim 4, wherein the coaxial sleeve is operated via a knob external to the regulator. regulator. 6. Air flow is regulated by selective adjustment of the mechanical sleeve via a knob A claim that changes either toward or away from the mouthpiece of 5 regulator. 7. The poppet has two spaced apart baffles approximately midway between its ends. 7. The regulator according to claim 1, wherein: 8. When the poppet is in the fully open position, air hits the baffle before exiting the hole. The baffle is located close to the hole for continuous impingement, which increases the biasing force and valve 8. The regulator of claim 7, wherein the regulator is balanced with line pressure. 9. 6. The regulator of claim 5, wherein the air impinges primarily on the front surface of the baffle. 10. 10. The regulator of claim 9, wherein the biasing force is generated by a helical spring. 11. A biasing spring is coaxial with a portion of the poppet and is attached to one of the baffles or flanges. 11. The regulator of claim 10, wherein the regulator engages a surface. 12. 12. The regulator of claim 11, wherein the biasing spring engages the second end of the poppet. 13. The first end is connected to a cross section of the air supply line whose area is smaller than the cross section of the air chamber of the valve. Configure with a larger baffle to close the supply line when the poppet is in the open position. acts as a closing member for the poppet and connects to the air baffle when the poppet is in the open position. 13. The regulator according to claim 12, wherein the regulator functions as follows. 14. 13. The regulation of claim 12, wherein the coaxial sleeve is formed of a plastic material. Data. 15. 15. The knob according to claim 14, wherein the knob has a grade indicating a setting state of the coaxial sleeve. regulator. 16. The first end constitutes a sealing means for closing the population when the poppet is in the closed position. 16. The regulator according to claim 15.