KR101047905B1 - Regulator for air tank - Google Patents

Abstract

PURPOSE: A regulator for ain tank is provided to supply air depressurized with a constantly fixed pressure by offering air of the air tank in the refracting state by the refraction means. CONSTITUTION: The regulator for ain tank includes a valve housing(10); a depressurization valve(30); and a refraction means. The valve housing has an exhaust flow path discharging air charged in a first valve chamber(11). The depressurization valve depressurizes air of the air tank flown in the first valve chamber by controling air of the air tank flown in the first valve chamber. The refraction refracts air of the air tank through a depressurization valve included in the first valve chamber and then supplies the air.

Description

Regulator for Airbags {REGULATOR FOR AIR TANK}

The present invention relates to a regulator for a reservoir, and more particularly, to a regulator for a reservoir that can provide a reduced pressure of the air in the reservoir at a constant pressure at all times.

In general, an operator working in a place where air is scarce, such as a fire site or a harmful gas site, receives air from an air reservoir (not shown) mounted on a backpack (5: Bcakpack) of a back waist as shown in FIG. Such an operator recognizes the amount of air (warning amount remaining) that can be used for several minutes to several ten minutes by an alarm installed in the backpack 5 operated by the air pressure of the reservoir when the air in the reservoir is exhausted. Therefore, the operator can recognize the warning residual amount of air and can quickly evacuate to a safe place (air-rich place) before the air in the reservoir is completely exhausted.

As such, the alarm for warning the remaining amount of warning of the air reservoir may be registered as an example 951394 (air safety alarm system) patented to the Republic of Korea Patent Office by the applicant of the present invention. This alarm operates by receiving compressed air from the regulator 2 connected to the reservoir of the backpack 5 as shown in FIG. The regulator 2 is provided separately from the valve block 6 to be described later, as shown in the backpack (5). In addition, the regulator 2 has a first tube 2a and a second tube 2b as shown in order to alarm the compressed air of the reservoir and provide it to the wearer.

At this time, the regulator 2 directly supplies the air of the compressed air filled and compressed to a pressure of about 300 kgf / cm 2 to the first tube 2a connected to the valve block 6, and at the same time supplies the high-pressure air discharged from the air cylinder. The pressure was reduced to about 8 kgf / cm 2 and supplied to the second tube 2b connected to the valve block 6. That is, the regulator 2 supplies the high pressure primary air (pressure of about 300 kgf / cm 2) to the first tube 2a and the low pressure secondary air (pressure of about 8 kgf / cm 2) to the second tube. It supplies to (2b).

Here, the first tube (2a) described above is connected to the valve block (6) as shown in the pressure of about 300 kgf / ㎠ through the gauge tube (4a) and the whistle tube (9a) of the valve block (6) The high pressure primary air having the same is supplied to the remaining gauge 4 and the whistle 9. Accordingly, the first tube 2a displays the remaining amount of the reservoir through the remaining gauge 4, and acoustically warns that the air in the reservoir has reached the warning residual amount through the whistle 9. At this time, the remaining gauge (4) shows the remaining amount by displaying on the scale that the air pressure of the reservoir is gradually dropped at about 300 kgf / ㎠ while the air in the reservoir is exhausted. Then, the whistle 9 emits a warning sound of about 90 dB when the air pressure of the reservoir drops from about 300 kgf / cm 2 to about 55 kgf / cm 2 as the air in the reservoir is exhausted to warn that the air in the reservoir reaches the remaining amount of warning. . That is, the whistle 9 is operated by the air pressure of about 55 kgf / cm 2. Therefore, the worker during the mission can recognize the remaining amount of warning by the alarm of the whistle (9) can ensure the time to evacuate to the safe area.

On the other hand, the above-described second tube (2b) through the respirator tube (3a) connected to the valve block 6 of the backpack (5) as shown in the secondary pressure of the low pressure supplied by reduced pressure by the regulator (2) Supply to respirator (3). At this time, the respirator 3 converts the secondary air having a pressure of about 8 kgf / cm2 supplied to the respirator tube 3a into a respirable pressure (a pressure of about 20 mmH ₂ O slightly higher than atmospheric pressure) and supplies it to the worker. do. Therefore, the worker can breathe fresh air by the respirator 3, so that the worker is protected from harmful gas at the workplace.

On the other hand, when the secondary air is supplied to the second tube 2b, the valve block 6 partially moves to the second tube 2b while the spool SL embedded therein moves as shown in an enlarged view. The secondary air is provided to the first diaphragm switch (not shown) of the switch module 13 attached to one side. At this time, the first diaphragm switch switches the switch module 13 while being convexly deformed by the pressure of the secondary air. Therefore, the switch module 13 lights the flashing position indicator 5a mounted on the backpack 5 to display the current position of the operator. That is, the conventional pneumatic alarm alarm informs other workers of the current position of the worker through the position indicator (5a).

The switch module 13 lights the position indicator 5a from when air is discharged from the reservoir to when the air is almost completely exhausted. Thus, the position indicator 5a lights up until the air in the reservoir is almost completely exhausted to indicate the operator's current position.

On the other hand, the above-described switch module 13 turns on the warning lamp (L) installed in the lamp unit (4b) of the remaining gauge 4 as shown enlarged through the second diaphragm switch not shown. The switch module 13 has a second diaphragm switch (not shown) while the spool SL moves when the primary air pressure of the high pressure (about 300 kgf / cm 2 pressure) flowing into the valve block 6 is weakened. ). At this time, the second diaphragm switch is convexly deformed by the air pressure (about 8 kgf / cm 2 pressure) of the secondary air, and turns on the warning lamp L while switching operation. Therefore, the wearer can recognize that the air in the reservoir is exhausted by the warning sound of the whistle 9 and the blinking warning light L. That is, the wearer can recognize the exhaustion of the air in various forms.

On the other hand, the regulator 2 is built in the valve body (2c) after the primary air of the uncompressed air reservoir flows into the inlet (2c ') of the valve body (2c), as shown in (a) of FIG. The hollow 2f of the plunger 2d is supplied. The plunger 2d is lowered by the air pressure of the primary air filled in the upper portion through the hollow 2f as shown in Fig. 2B. At this time, the plunger 2d is lowered while compressing the elastic body 2e when the air pressure of the primary air filled in the upper portion is about 8 kgf / cm 2, and thus, as shown in FIG. 2c '). That is, the plunger 2d is lowered as primary air is filled in the upper portion to form a pressure of about 8 kgf / cm 2. Of course, since the regulator 2 is filled with an air pressure of about 8 kgf / cm 2 in the valve body 2c, the regulator 2 supplies air absorbed at a pressure of about 8 kgf / cm 2 to the respirator 3 through the outlet 2c ″. Therefore, the regulator 2 depressurizes the primary air and provides it to the respirator 3.

Here, the above-described plunger 2d is lowered while suppressing the primary air flowing into the inlet 2c 'during the lowering. That is, the plunger 2d descends while suppressing the repulsive force of the primary air flowing into the inlet 2c '. Then, the plunger 2d is returned to its original position as the upper side pressure decreases as the upper charged air is discharged through the discharge port 2c "and the elastic body 2e is circularly restored again. That is, the plunger 2d is When the pressure in the upper portion is reduced, it returns again by the elastic force of the elastic body 2e.

However, such a general regulator 2 has a pressure of about 8 kgf / cm2 at the upper side of the plunger 2d when the air pressure is gradually reduced as the air in the reservoir is exhausted and the air pressure flowing into the inlet 2c 'is reduced. There is a problem of falling even if not. Because, the plunger 2d is lowered even if the upper side pressure is not formed about 8 kgf / ㎠ because the repulsive force of the inlet (2c ') side by the primary air acting during the lowering is reduced. Even if the plunger 2d is depressurized even when the air pressure of the primary air is gradually reduced and the repulsive force of the inlet port 2c 'is further weakened, the plunger 2d falls even at a pressure of about 5.5 kgf / cm 2. Therefore, the general regulator 2 cannot provide the primary air at reduced pressure at a pressure of about 8 kgf / cm 2.

The problem as described above occurs because the primary air introduced into the inlet 2c 'is provided in the same direction as the stroke direction of the plunger 2d to act as a repulsive force on the plunger 2d.

On the other hand, in the above-described whistle 9, the whistle cylinder 9b is bolted to the cylindrical whistle body 7 by the bolt B as shown in FIG. The whistle body 7 has a first through hole 7a formed in a straight line in the longitudinal direction inward, and a second through hole 7b having an inclination with the first through hole 7a is formed in a communicating state. The nozzle N is coupled to the end of the second through hole 7b. In the whistle cylinder 9b, a vacuum hole 6a is formed in a portion adjacent to the nozzle N, and the discharge hole 6b that emits a warning sound “beep ~~” while air is discharged to a portion spaced from the nozzle N. ) Is formed.

Here, the above-mentioned whistle body 7 is formed in the engaging groove (7c) is fixed to the end of the whistle cylinder (9b) shown in Fig. 1 described above by a coupler not shown or directly connected to the aforementioned valve block (6). do.

The whistle cylinder 9b guides the secondary air to the nozzle N through the second through hole 7b when the secondary air is supplied to the first through hole 7a. And the nozzle N discharges secondary air to the edge part. At this time, the whistle cylinder (9b) is discharged through the nozzle (N) having a pressure of about 8 kgf / ㎠ in the lower portion of the vacuum hole (6a) is discharged around the vacuum hole (6a) is instantaneously vacuumed . In other words, the lower portion of the whistle cylinder 9b is vacuumed due to the high flow rate of the secondary air. Therefore, the vacuum hole 6a discharges the outside air of the whistle cylinder 9b by the vacuum pressure to the inside of the whistle cylinder 9b and discharges it to the discharge hole 6b together with the secondary air discharged from the nozzle N. Let's do it. This gives the whistle cylinder 9b a warning sound. Of course, since the discharge hole 6b is supplied to the outside air of the whistle cylinder 9b by the vacuum hole 6a, the discharge hole 6b smoothly emits a warning sound.

However, the whistle 9 should not only form the first through hole 7a and the second through hole 7b as described above, but also manufacture the nozzle N separately and then the second through hole ( 7b) is very difficult to manufacture and the manufacturing cost is excessively consumed.

In addition, the whistle body (7) is fixed by the engaging groove (7c) formed in a circular shape so that when the worker's work equipment, the cover or the surrounding structure is rotated, part or the whole of the discharge hole (6b) is shielded and the warning sound Sometimes it does not radiate properly.

The present invention has been made to solve this problem, the air of the reservoir is provided in a refracted state, so that the amount of air in the reservoir is reduced, even if the air is reduced pressure supply of the air in the reservoir can always supply a reduced pressure to a constant pressure It is an object to provide a universal regulator.

Another object of the present invention is to provide an air conditioner regulator having a whistle which emits a warning sound while the secondary air of the pressure-reduced air box is injected in an inclined state by improving the internal structure.

According to the present invention for achieving the above object, a valve having a straight first valve chamber inside which the air of the air inlet is filled in a reduced pressure state is provided therein, and discharges the air filled in the first valve chamber housing; It is embedded in the first valve chamber of the valve housing, to control the air pressure of the air cylinder flowing into the first valve chamber according to the air pressure of the air filled in the first valve chamber to reduce the air pressure of the air cylinder flowing into the first valve chamber Pressure reducing valves; And refracting means for supplying the air of the reservoir to the first valve chamber in a direction different from the axial direction of the first valve chamber, and refracting the air of the reservoir to the pressure reducing valve incorporated in the first valve chamber. The pressure reducing valve may be movably embedded in the valve housing and provided with a hollow parallel to the first valve chamber of the valve housing to supply air from the air cylinder refracted to the first valve chamber to the discharge passage. A plunger which is guided to the discharge passage and provided with a pressurized portion pressurized by air filled in one end of the first valve chamber and moved by the pressurized portion; An elastic member elastically supporting the plunger to provide a reaction force against the pressing force of the pressing portion; And a valve seat closing the hollow while contacting the plunger by the movement of the plunger.

According to the present invention as described above, since the air in the reservoir is refracted by the refraction means, the amount of air in the reservoir is reduced, so that the air can be supplied at a constant pressure by depressurizing the air in the reservoir at a constant pressure. have.

In addition, the internal structure of the whistle is improved, so that the warning sound can be emitted while injecting the secondary air of the pressure-reduced reservoir in an inclined state, it can be easily manufactured.

Figure 1 is a perspective view of a safety alarm system for a common air applied regulator.
FIG. 2 is a longitudinal sectional view of the regulator shown in FIG. 1. FIG.
3 is a longitudinal cross-sectional view of the whistle shown in FIG. 1.
Figure 4 is a front cross-sectional view showing an exploded reservoir regulator according to an embodiment of the present invention.
Figure 5 is a side cross-sectional view and a front sectional view showing a coupling state of the regulator shown in FIG.
Figure 6 is a side cross-sectional view and a front sectional view showing an operating state of the regulator shown in FIG.
Figure 7 is an exploded front view showing a state in which the fast charger is coupled to the regulator shown in FIG.
8 is an exploded perspective view illustrating a state in which the regulator shown in FIG. 4 is fixed to a backpack;
9 is an exploded perspective view showing the fixing means of the regulator shown in FIG.
10 is a side view showing an operating state of the regulator shown in FIG.
FIG. 11 is a side view illustrating a state in which an air cylinder is coupled to the regulator shown in FIG. 8. FIG.
12 is a perspective view of the regulator shown in FIG. 8.
Figure 13 is an exploded perspective view of the housing body and the housing cover shown in FIG.
14 is an exploded perspective view of the switch module shown in FIG.

Hereinafter, the air regulator according to an embodiment of the present invention will be described with reference to FIGS. 4 to 14 as follows, and FIGS. 4 and 5 and 6 (b) are shown in FIG. AA is a longitudinal cross-sectional view, and Figures 5 and 6 (a) is a longitudinal cross-sectional view taken along the line BB of FIG.

As shown in FIG. 4, the present invention may include a valve housing 10, a pressure reducing valve 30, and a deflection means.

As shown in FIG. 4, the valve housing 10 is provided with a straight first valve chamber (a whistle cylinder 9b) filled with air from the air tank AT and charged under a reduced pressure. In addition, the valve housing 10 has a discharge passageway PS for discharging air filled in the first valve chamber 11. The discharge passage PS includes, for example, a cover passage 11a formed in the housing cover 10b described later as shown in FIG. 4 and a bypass passage 17 formed in the housing body 10a described later. Can be configured.

The pressure reducing valve 30 is embedded in the first valve chamber 11 of the valve housing 10 as shown in FIG. 5. As described below, the pressure reducing valve 30 supplies the primary air of the air tank AT introduced into the first valve chamber 11 according to the air pressure of the primary air filled in the first valve chamber 11. The air pressure of the air tank AT flowing into the first valve chamber 11 by intermittent pressure is reduced by secondary air having a pressure of about 8 kgf / cm 2.

As shown in FIG. 5B, the refraction means extends the uncompressed primary air of the air tank AT in a direction different from the axial direction (length direction) of the first valve chamber 11. 11) (see enlargement arrow). Therefore, the refraction means can be provided by refracting the primary air of the air tank AT to the pressure reducing valve 30 built in the first valve chamber 11 (see enlargement arrow).

Here, the above-described refraction means is a supply hole 12 for supplying the primary air of the air tank (AT) to the first valve chamber 11 of the valve housing 10, for example, as shown enlarged in FIG. ) Is formed in the valve housing 10 in a state orthogonal to the axial direction of the first valve chamber 11, so that the primary air of the air cylinder AT introduced into the supply hole 12 is perpendicular to each other. And the first valve chamber 11 is preferably configured to bypass at a right angle as shown by an arrow in the enlarged view. That is, the refraction means may include a supply hole 12 and the first valve chamber 11 communicated in a state orthogonal to each other. Therefore, the refraction means refracts the primary air of the air tank AT supplied to the valve housing 10 in an orthogonal state to provide the pressure reducing valve 30.

In more detail, the primary air is supplied to the side of the first valve chamber 11 through a supply hole 12 orthogonal to the first valve chamber 11, as shown in an enlarged view of FIG. 5B. do. The primary air is refracted at right angles as the supply hole 12 is orthogonal to the first valve chamber 11, and the primary air is supplied to the first valve chamber 11. Therefore, the primary air is refracted in the orthogonal state and supplied to the pressure reducing valve 30 embedded in the first valve chamber 11.

On the other hand, the valve housing 10 described above may be configured to include a housing body (10a) and the housing cover (10b), for example, as shown in FIG. If this is explained in more detail as follows.

The housing body 10a is formed in a block shape, and has a first valve chamber 11 as shown in FIG. 4, with the bypass passage 17 spaced apart from the first valve chamber 11. It is provided in parallel to guide the air filled in the first valve chamber 11 as shown in (b) of Figure 6 to the outside.

 The housing cover 10b is formed in a plate shape as shown in FIG. 4 so that the aforementioned cover passage 11a is provided in a groove shape on one side thereof. The housing cover 10b is bolted to the housing body 10a as shown in FIG. 5B to shield one end of the first valve chamber 11 and cover the cover passage 11a with the first valve chamber. (11) and the bypass passage 17 described above. Accordingly, the cover flow path 11a connects the first valve chamber 11 and the bypass flow path 17 to communicate with each other, and flows into the first valve chamber 11 as shown in FIG. The primary air of the reservoir AT is provided to the bypass flow path 17.

Here, the aforementioned cover passage 11a is in communication with the communication hole 51a of the second valve chamber 51 described later as shown in FIG. 4. In addition, the bypass passage 17 communicates with the valve holder 27 and the mask passage 19 of the relief valve 20 formed in the groove shape in the housing body 10a as shown in FIG. 4.

Meanwhile, the pressure reducing valve 30 described above may include, for example, a plunger 31, an elastic member 33, and a valve seat 35 as shown in FIG. 4. The pressure reducing valve 30 is reciprocally received in the first valve chamber 11 of the housing body 10a as shown in FIGS. 5 and 6 (b). Since the housing cover 10b is coupled to one side of the housing body 10a as shown in FIG. 5B, the pressure reducing valve 30 is not separated to one side of the first valve chamber 11. In addition, when the stopper 36 shown in FIG. 5 (b) is coupled to the other side of the first valve chamber 11 as shown in FIG. As the other side of the first valve chamber 11 is shielded, the first valve chamber 11 is not separated from the other side. The pressure reducing valve 30 is different from the above-described valve seat 35 when the valve seat 35 is configured to be fixed to the other side of the first valve chamber 11 like the stopper 36 by the valve seat 35 by the first valve chamber ( 11) It does not deviate to the other side. That is, the pressure reducing valve 30 does not escape to the other side of the first valve chamber 11 because the valve seat 35 shields the other side of the first valve chamber 11. Of course, in this case, the stopper 36 described above may be omitted. However, the stopper 36 is preferably configured together with the valve seat 35 to move the valve seat 35 as described below.

Here, the aforementioned plunger 31 is movably embedded in the valve housing 10 as shown in FIG. 5 (b). In addition, the plunger 31 is provided with a hollow 31a parallel to the first valve chamber 11 of the valve housing 10, so that the plunger 31 is uncompressed in the air cylinder AT refracted and supplied to the first valve chamber 11. The primary air is guided to the cover passage 11a of the housing cover 10b. The plunger 31 is inserted into one side of the first valve chamber 11 adjacent to the cover passage 11a described above, as shown in FIG.

The plunger 31 described above is pressurized by air filled in one end of the first valve chamber 11 while being guided to the cover passage 11a through the hollow 31a as shown in FIG. The pressurizing part 31b is provided. The pressurizing portion 31b is preferably formed in a flange shape as shown in FIG. 4 so as to easily pressurize the air filled in one end of the first valve chamber 11. Therefore, the plunger 31 is moved by the press part 31b which is pressurized as shown in FIG.6 (b).

As described above, the pressing unit 31b may include a flat surface 31b-1 and a step 31b-2 as illustrated in FIG. 5B. The flat surface 31b-1 is formed on the plunger 31 as shown in FIG. 5 (b) to diffuse the air discharged from the hollow 31a as shown in FIG. 6 (b). . As shown in (b) of FIG. 5, the stepped portion 31b-2 is formed at the edge of the flat surface 31b-1 so that air diffused as shown in FIG. To prevent leakage to the outside.

On the other hand, the above-described elastic member 33 is fitted to the plunger 31 as shown in Fig. 5 (b) to elastically support the plunger 31. Thus, the elastic member 33 provides a reaction force to the pressing portion 31b that is pressed by the pressing force as shown in FIG.

And, the valve seat 35 described above is inserted into the other side of the first valve chamber 11 as shown in (b) of FIG. 5 to move the plunger 31 as shown in (b) of FIG. The hollow 31 a of the plunger 31 is closed while being in contact with the plunger 31. This valve seat 35 is formed in a disk shape as shown in enlarged in (b) of FIG. Valve seat 35 may be provided with a projection on the back as shown enlarged. The valve seat 35 is tightly coupled with the stopper 36 as the protrusion is inserted into the stopper 36, which will be described later, as shown in FIG.

Meanwhile, the pressure reducing valve 30 may further include a sealing member 32 sealing the outer circumferential surface of the plunger 31 as shown in (b) of FIG. 5. The sealing member 32 may include, for example, a gasket 32a and a spring 32b as shown in FIG. 4.

Here, the above-described gasket 32a is formed of a rubber material in a ring shape, for example, and is fitted to the outer circumference of the plunger 31 as shown in FIG. Then, the spring 32b elastically supports the gasket 32a in a state of being supported by the valve seat 35 as shown in (b) of FIG. 5. Therefore, the gasket 32a is supported by the spring 32b and seals the outer circumferential surface of the plunger 31 as shown in FIG. 6 (b), so that the gasket 32a flows into the supply hole 12 and the first valve chamber 11. The primary air of the air tank (AT) guided to prevent leakage to the outside of the plunger (31). That is, the sealing member 32 seals the outer circumferential surface of the plunger 31.

In addition, the pressure reducing valve 30 may further include an adjuster for adjusting the position of the valve seat 35 described above. Such an adjuster may include, for example, a hole-shaped stopper holder 15 and a stopper 36 formed on the other side of the first valve chamber 11 as shown in FIG. 4. The stopper holder 15 is formed as the other side of the first valve chamber 11 is enlarged as shown in FIG. 4. The stopper 36 is fastened to the stopper holder 15 as shown in FIG. 5 (b) to close the stopper holder 15. The stopper 36 supports the rear of the valve seat 35 in a state of being fastened to the stopper holder 15 as shown in FIG. The stopper holder 15 and the stopper 36 may be threaded to form a thread corresponding to each other.

In this case, the stopper 36 is tightened or loosened in a screwed-in state to the stopper holder 15. At this time, the valve seat 35 is moved in position while moving by the elastic force of the spring (32b). Therefore, the plunger 31 adjusts the stroke distance as the position of the valve seat 35 is moved. Of course, the plunger 31 may adjust the depressurization rate of the air to be depressurized, as will be described later because the stroke is adjusted.

Meanwhile, the pressure reducing valve 30 is deflected through the above-described supply hole 12 to guide the primary air of the air tank AT introduced into the first valve chamber 11 between the plunger 31 and the valve seat 35. It may be configured to further include an air inducing means. Such air induction means is formed in the curved portion 34a and the valve seat 35 formed at the other end of the plunger 31, as shown in an enlarged view in FIG. 5B, and corresponds to the curved portion 34a. It may be configured to include a curved groove (34b). That is, the plunger 31 and the valve seat 35 are each formed in a state in which the curved portion 34a and the curved groove 34b can be matched to ends facing each other.

The curved portion 34a and the curved groove 34b are enlarged in FIG. The primary air is smoothly guided between the plunger 31 and the valve seat 35. Therefore, the primary air is easily guided to the hollow 31a of the plunger 31.

On the other hand, the valve housing 10 may be provided with a mask flow path 19 as shown in FIG. As shown in FIG. 4, the mask passage 19 communicates with the bypass valve 17 of the above-described discharge passage PS so that the air hose H of the mask MS is connected as shown in FIG. 8. do. Accordingly, the mask flow passage 19 guides the secondary air, which has been decompressed at a pressure of about 8 kgf / cm 2 discharged from the bypass flow passage 17, to the outside of the valve housing 10 to provide the mask MS.

On the other hand, the valve housing 10 may further comprise a relief valve 20 as shown in FIG. The relief valve 20 is a member for adjusting the air pressure of the reduced pressure secondary air discharged from the above-described discharge passage (PS) to a set pressure. The relief valve 20 may include, for example, a relief valve seat 21, an opening / closing member 23, an elastic body 25, a valve holder 27, and a stopper 29 as shown in FIG. 4. . If this is explained in more detail as follows.

The relief valve seat 21 is provided in the valve housing 10a as shown in FIG. 4 and has an air hole 21a in communication with the bypass flow path 17. The opening and closing member 23 is composed of a rubber material or a plate attached to the rubber material, and opens and closes the air hole 21a of the valve seat 21 as shown in FIGS. 5 and 6 (b). The elastic body 25 elastically supports the opening and closing member 23 as shown in (b) of FIG. The valve holder 27 is provided in a groove shape in the valve housing 10a as shown in FIG. 4, and the elastic body 25, the opening / closing member 23, and the stopper 29 as shown in FIG. 5B. Accept. The stopper 29 is fixed to the valve holder 27 as shown in FIG. 5 (b) to prevent the elastic body 25 from being separated from the valve holder 27. As shown in FIG. 4, the stopper 29 has a vent hole 29a for discharging the air discharged to the air hole 21a to the outside of the valve holder 27.

Here, the above-described valve holder 27 and the stopper 29 may be screwed together to form a thread corresponding to each other on the inner peripheral surface and the outer peripheral surface. In this case, the stopper 29 may adjust the elastic force of the elastic body 25 while being rotated forward or reverse in the valve holder 27. Therefore, since the pressing force of the opening / closing member 23 is adjusted according to the adjusted elastic force of the elastic body 25, the relief valve 20 may adjust the exhaust pressure exhausted to the vent hole 29a through the elastic force of the elastic body 25. .

Meanwhile, the valve housing 10 may further include an alarm 50 as shown in FIG. 4. The alarm 50 is a reduced pressure air discharged from the discharge flow path (PS) of the valve housing 10 is provided with a first valve chamber 11 in which air in the air tank (AT) is filled in a reduced pressure state as described below Provides an alarm based on air pressure. That is, the alarm unit 50 provides the alarm according to the air pressure of the secondary air when the air remaining in the air box AT is exhausted, thereby venting the surroundings of the worker.

The alarm 50 is, for example, as shown in FIG. 4, the second valve chamber 51, the spool 52, the reaction spring 53, the cap 54, the communication passage 55, and the first branch passage 56. ) And an alarm member to be described later. If this is explained in more detail as follows.

First, the aforementioned second valve chamber 51 has a communication hole 51a communicating with the cover flow path 11a of the valve housing 10 on one side and having the other side open. The second valve chamber 51 is formed in the valve housing 10 in a state parallel to the first valve chamber 11, as shown in FIG. In addition, the second valve chamber 51 is branched to the first branch passage 56, which will be described later, as shown. Accordingly, the communication hole 51a communicates with the first branch flow passage 56 through the second valve chamber 51.

Next, the aforementioned spool 52 is embedded in the second valve chamber 51 as shown in (b) of FIG. 5 and FIG. 6, of the uncompressed air tank AT flowing into the valve housing 10. The member opens and closes the communication hole 51a while moving by the primary air. The spool 52 is provided with a projection 52a at one end as shown in FIG. 4, and a cap channel 54a of the cap 54 described later as shown in FIGS. 5 and 6 (b). The projection 52a is embedded in the second valve chamber 51 in a state in which the protrusion 52a is reciprocally inserted.

Next, the above-described reaction force spring 53 is a member for providing reaction force against the air of the air box AT to the spool 52. This, reaction force spring 53 is fitted to the other end of the spool 52, as shown in (b) of Figure 5, is embedded in the second valve chamber 51 together with the spool 52 to spool 52 Support elastically. The reaction force spring 53 is compressed when the air pressure of the primary air is provided to the cap flow path 54a of the cap 54, as shown in FIG. 6 (b), thereby compressing the spool 52 into the communication hole 51a. When the air pressure provided to the cap flow path 54a is weakened, as shown in FIG. 5B, the spool 52 is moved in the direction in which the cap 54 is installed.

Subsequently, the cap 54 described above shields the other side of the second valve chamber 51 as shown in FIGS. 5 and 6 (b) so that the reaction force spring 53 and the spool 52 have a second valve chamber. Departure from 51 is prevented. Cap 54 is preferably screwed to the other side of the second valve chamber (51). The cap 54 prevents the primary air of the filling passage 73 to be described later formed on the outer circumferential surface of the cap 54b to be provided to the spool 52 as shown. Accordingly, the gasket 54b prevents the primary air flowing into the other side of the second valve chamber 51 from flowing into one side of the second valve chamber 51 in which the communication hole 51a is formed.

Subsequently, the aforementioned communication passage 55 is an element that is directly connected to the first valve chamber 11 of the valve housing 10 to provide the spool 52 with uncompressed primary air of the air box AT. The communication passage 55 is, for example, a direct passage 55a directly connected to the first valve chamber 11 of the valve housing 10 as illustrated in FIG. 4 and the cap 54 described above as illustrated in FIG. 5. It may be configured to include a cap flow path (54a) formed in the). The direct flow path 55a provides the cap flow path 54a with uncompressed primary air supplied from the first valve chamber 11, as shown in an enlarged upper right portion of (b) of FIG. Therefore, the cap flow path 54a provides the spool 52 with uncompressed high pressure primary air as shown in an enlarged manner to move the spool 52 to the communication hole 51a. Of course, the spool 52 while closing the communication hole (51a) as shown in Figure 6 (b) to prevent the operation of the alarm member as described below.

Subsequently, the aforementioned first branch flow passage 56 communicates with the second valve chamber 51 and flows into the communication hole 51a as shown in FIG. Bypass to the whistle hole (HH) to which (HS) is coupled. Therefore, the first branch flow passage 56 provides the secondary air introduced into the communication hole 51a to the whistle HS to operate the whistle HS.

Finally, the aforementioned alarm member is a member that provides an alarm by the air bypassed to the first branch flow path 56. The alarm member is operated according to the air pressure of the air charged in the second valve chamber 51 in a state of being installed in the valve housing 10. Therefore, the worker can easily grasp the exhausted state of the air.

For example, the alarm member may be configured as a whistle (HS) that emits a warning sound by the secondary air supplied from the first branch passage 56, as shown in (a) of FIG. The whistle HS may be configured to include, for example, a whistle body HS2 and a whistle cylinder HS1 as shown in FIG. 4.

The whistle body HS2 has a nozzle passage NP therein as shown in FIG. 4. The nozzle flow path NP has an inclination from one end of the lower side to the other end of the upper side as shown in FIG. 4, and the other end is narrowly formed so that air is compressed and discharged from the other end. Whistle body (HS2) is easy to manufacture because it is formed only inclined nozzle passage (NP), unlike the prior art. The whistle body HS2 has a narrowly formed end portion that replaces the conventional nozzle (see FIG. 3). Therefore, the whistle body HS2 can omit the conventional nozzle. Of course, the whistle (HS) can omit the conventional nozzle, so that not only the manufacturing is easy but also the manufacturing cost is reduced.

In addition, since the whistle HS is formed with only one nozzle passage NP in the whistle body HS2, the straight first through hole 7a and the inclined second through hole 7b shown in FIG. 3 are formed. It has a much simpler structure than a conventional whistle having. Therefore, the whistle HS can improve manufacturing convenience.

The whistle cylinder HS1 is coupled to the whistle body HS2 by bolting or screwing as shown in FIG. 4. The whistle cylinder HS1 has a vacuum hole HS1b and a discharge hole HS1a as shown in an enlarged view in FIG. 5A. The vacuum hole HS1b inhales the outside air by the vacuum pressure inside the whistle cylinder HS1 generated when the high pressure air is discharged from the nozzle flow path NP of the whistle body HS2 to the discharge hole HS1a. Supply. The discharge hole HS1a emits a warning sound while discharging the air discharged from the nozzle passage NP and the air supplied from the vacuum hole HS1b.

This whistle (HS) is screwed into the whistle hole (HH) of the valve housing (10a) as shown in Figure 5 (a) from the first branch flow path 56 branched from the second valve chamber 51 Receive secondary air. Accordingly, the whistle HS supplies the secondary air of the first branch passage 56 through the nozzle passage NP to the discharge hole HS1a and emits a warning sound to warn that the air in the reservoir AT is exhausted. . Since the whistle (HS) is screwed into the whistle hole (HH) is fixed to a position that does not interfere with the operator's work equipment or coating or the surrounding structure, it can be continuously emitted warning sound unlike conventional.

On the other hand, the aforementioned alarm member may be configured to include a first diaphragm 61 and a switch module SM as shown in FIG. 14, for example. That is, the alarm member may be configured to include the first diaphragm 61 and the switch module SM instead of the aforementioned whistle HS.

As shown in FIG. 14, the first diaphragm 61 is formed of a rubber material having a disk shape, and is fixed to the second branch flow path 56 ′ communicating with the second valve chamber 51 as shown in FIG. 5. As shown in an enlarged view in FIG. 6 (a), the second air is discharged from the second branch flow path 56 '. That is, the first diaphragm 61 is operated by the secondary air of the second valve chamber 51 introduced through the communication hole 51a. When the secondary air is discharged from the second branch flow path 56 ', the first diaphragm 61 expands by the air pressure of the secondary air as shown in FIG. Protrude convexly outward. At this time, the first diaphragm 61 presses the first switch 63b of the switch module SM to enlarge the warning lamp LP1 of the backpack (not shown) as illustrated in (a) of FIG. 6. In conclusion, the first diaphragm 61 is operated by the reduced pressure air discharged from the discharge passageway PS of the valve housing 10a and introduced into the communication hole 51a.

The switch module SM is a member for operating the warning lamp LP1 by the aforementioned first diaphragm 61. The switch module SM may include, for example, a fixed plate 63a, a first switch 63b, a circuit board 63c, and a case 63d, as shown in FIG. 14.

The fixing plate 63a is in close contact with the valve housing 10a as shown in FIG. 5A to fix the first diaphragm 61 to the end of the second branch flow passage 56 '. The first switch 63b is spaced apart from the first diaphragm 61 as shown in (a) of FIG. 5, and is modified when the first diaphragm 61 is deformed as enlarged in FIG. The switching operation is performed while being pressed by the one diaphragm 61.

The circuit board 63c generates a control signal according to the switching of the first switch 63b to light the warning lamp LP1 of the pressure gauge GP shown in FIG. 8. Therefore, the warning lamp LP1 flashes to warn the exhausted state of the air box AT.

As shown in (a) of FIG. 5, the case 63d is fixed to the inside of the valve housing 10 with the circuit board 63c provided with the first switch 63b fixed thereto and accommodating the fixing plate 63a. Is installed.

On the other hand, the warning member as described above may be further provided with a second diaphragm 62 and the second switch 65, as shown in Figure 5 (a). The second diaphragm 62 is configured in the same manner as the first diaphragm 61 described above as enlarged in FIG. As shown in FIG. 5A, the second diaphragm 62 is fixed to the end of the communication line 64 in communication with the bypass flow path 17 by the fixing plate 63a described above. The second diaphragm 62 is convexly deformed by the secondary air supplied from the communication line 64 and pressurizes and operates the second switch 65 installed on the circuit board 63c. That is, the second diaphragm 62 is convex by the secondary air because the secondary air supplied to the bypass passage 17 of the discharge passage PS formed in the valve housing 10a is supplied to the communication line 64. While deforming to press the second switch 65 to switch. At this time, the circuit board 63c turns on the position indicator LP2 of the backpack (not shown) according to the switching operation of the second switch 65.

As shown in FIG. 6, the second diaphragm 62 continuously presses the second switch 65 when the secondary air is continuously supplied to the bypass flow path 17. Accordingly, the second diaphragm 62 blinks the position indicator lamp LP2 until the air in the air box AT is first exhausted.

Meanwhile, the valve housing 10 may further include a gauge actuator 70 as shown in FIG. 4. This gauge actuator 70 provides the primary air of the uncompressed air tank AT provided in the communication passage 55 to the pressure gauge GP shown in FIG. 8 connected to the air tank AT. It is a member to operate the pressure gauge GP.

The gauge actuator 70 may comprise, for example, a filling passage 73 and a gauge passage 75 as shown in FIG. 4.

Filling flow path 73 is formed in the groove shape in the circumferential direction on the outer circumferential surface of the cap 54, as shown in Figure 5 (b), as the cap 54 is embedded in the second valve chamber 51 Primary air is filled in the second valve chamber 51 to provide a space for flow through. At this time, the filling passage 73 fills the second valve chamber 51 with the primary air provided through the direct connection passage 55a of the communication passage 55, as shown in FIG. 6 (b).

The gauge flow path 75 communicates with the second valve chamber 51 as shown in FIG. 6 (b), and as shown in FIG. 8, an air hose H connected to the pressure gauge GP is connected thereto. The primary air filled in the second valve chamber 51 through the air hose H is provided to the pressure gauge GP. At this time, the gauge passage 75 provides the primary air of the second valve chamber 51 filled by the filling passage 73 to the pressure gauge GP. Therefore, the pressure gauge GP expresses the remaining amount of air in the air box AT as a scale by the primary air of the second valve chamber 51 provided through the gauge flow path 75.

On the other hand, the gauge flow path 75 may be formed so as to be in direct communication with the outer side of the valve housing 10 in the supply hole 12, unlike shown. That is, the gauge flow path 75 communicates with the direct flow path 55a of the second valve chamber 51 and the communication flow path 55 so as not to be connected to the supply hole 12 and to be directly connected to the supply hole 12. May be Therefore, the gauge flow path 75 may be supplied to the pressure gauge GP by receiving the primary air of the air tank AT directly from the supply hole 12. In this case, the gauge flow path 75 can be configured very simply. Since the configuration is easily understood by those skilled in the art, a detailed description thereof will be omitted.

On the other hand, the valve housing 10 is coupled to the coupler (CL) to the supply hole 12 as shown in FIG. The valve housing 10 has a boss 12a formed in the supply hole 12 as shown in FIG. 12 so that the coupler CL is easily connected.

Here, the coupler CL described above may include, for example, a knob 12b and a socket 12c as shown in FIG. 12.

The knob 12b is formed in a disk shape as shown in FIG. 12, and a central tube 12b-1 is integrally formed at the center of the knob 12b, so that the knob 12b can be opened through the central tube 12b-1 as shown in FIG. It is connected to the connector (C) by screwing. The socket 12c is coupled to the center tube 12b-1 of the knob 12b in an inserted state to guide the primary air of the air box AT to the supply hole 12 of the valve housing 10. Therefore, the coupler CL is easily coupled to the air box AT through the knob 12b, and easily supplies the air of the air box AT to the inside of the valve housing 10 through the socket 12c.

On the other hand, the valve housing 10 may further include a quick charger 90 as shown in FIG. The quick charger 90 rapidly charges air from another reservoir AT to the corresponding reservoir AT through the valve housing 10. The quick charger 90 may be configured to include an adapter 91 and a charging channel 95 as shown.

As shown in FIG. 7, the adapter 91 is detached from the connector C of the other air tank AT2 to supply air supplied from the other air tank AT2 to the valve housing 10, and the reverse flow of the supplied air is provided. The check valve 93 is prevented. The adapter 91 is screwed to one side of the valve housing 10 in which the filling passage 95 is formed.

The filling passage 95 is formed in the valve housing 10 as illustrated in FIGS. 6B and 7 to guide the air supplied through the adapter 91 to the first valve chamber 11. Therefore, the filling passage 95 guides the air of the other air tank AT2 to the first valve chamber 11 as shown in FIG. 7 and communicates with the first valve chamber 11 in a state perpendicular to the supply hole 12. Rapidly charges air into the air tank AT fixed to the backpack (not shown). That is, the quick charger 90 charges the air of the other reservoir (AT2) connected to the reservoir (AT) by connecting the air of the other reservoir (AT2) to the corresponding reservoir (AT) when the air in the reservoir (AT) is exhausted can do. The quick charger 90 may be usefully used in an emergency situation in which air cannot be normally charged.

On the other hand, the valve housing 10 may further include a fixing means 80 as shown in FIG. Such, the fixing means 80 is capable of flowing the valve housing 10 to the backpack (BP) worn on the back of the operator with the air tank AT is mounted by the belt (BT) as shown in FIG. It is a member to be fixed. Such fixing means 80 may be configured to include, for example, a bracket 81, an overlap bracket 83, and a hinge 85, as shown in FIG. 9.

The bracket 81 is formed in a yoke shape as shown in FIG. 9 to provide a plurality of protrusions on both sides. This bracket 81 is installed on the back of the backpack (BP) as shown in FIG.

As shown in FIG. 9, the overlap bracket 83 is provided in the valve housing 10 and penetrated through the through-hole 81a formed in the backpack BP, and then inserted between the protrusions of the bracket 81 to be bracket 81. )). The overlap bracket 83 may be formed in a block shape as shown in FIG. 9, but may be formed in a plate shape unlike the illustrated example.

The hinge 85 rotatably couples the bracket 81 and the overlapping bracket 83 in an overlapping state as shown in FIG. 10. Accordingly, the valve housing 10 is fixed to the backpack BP as shown in FIG. 10 so that the valve housing 10 is easily connected when the connector C of the air box AT is connected to the coupler CL as shown in FIG. The hinge 85 flows while being rotated about an axis. That is, the coupler CL and the connector C of the air box AT are easily coupled by the fixing means 80.

Here, the hinge 85 described above may be configured as a bolt pin coupled to the nut, for example, as shown in FIG.

Referring to the operation of the air regulator according to an embodiment of the present invention as described above are as follows.

Supply hole 12 is the side of the first valve chamber 11, the uncompressed primary air having a pressure of about 300 kgf / ㎠ supplied from the air tank (AT) as shown enlarged in Figure 5 (b) To supply. In this case, the primary air is supplied between the pressure reducing valve 30 and the valve seat 35 while being refracted at right angles because the supply hole 12 and the first valve chamber 11 are orthogonal as shown in an enlarged view, and then the pressure reducing valve ( It flows into the hollow 31a formed in the plunger 31 of 30). The hollow 31a guides the introduced primary air to the pressurizing portion 31b of the plunger 31. Then, the pressurizing portion 31b diffuses the air introduced through the flat surface 31b-1, and intercepts the leakage of the air diffused through the step 31b-2. Accordingly, air is filled in one end of the first valve chamber 11 in which the pressurizing portion 31b of the plunger 31 is formed, as shown in FIG.

The plunger 31 is pressurized by the air pressure when the air is filled in one end of the first valve chamber 11 and the pressure of the charged air reaches about 8 kgf / cm 2. At this time, the plunger 31 moves while compressing the elastic member 33 as shown in FIG. Then, the plunger 31 closes the hollow 31a while being in close contact with the valve seat 35. Accordingly, the first valve chamber 11 is filled with air having a pressure of about 8 kgf / cm 2 and no more air is introduced therein. That is, in the pressurizing portion 31b, only air having a pressure of about 8 kgf / cm 2 is present therein. Accordingly, the valve housing 10 depressurizes the primary air introduced into the supply hole 12 by the pressure reducing valve 30 operating as described above to the secondary air having a pressure of about 8 kgf / cm 2.

Since the valve housing 10 seals the outer circumferential surface of the plunger 31 with the gasket 32a of the sealing member 32 supported by the spring 32b, as shown in FIGS. 5 and 6 (b). Air introduced into the first valve chamber 11 is not supplied to one end of the first valve chamber 11 in which the pressurizing portion 31a of the plunger 31 is located.

On the other hand, the cover flow path (11a) formed in the housing cover (10b) is a mask by supplying the secondary air filled in the first valve chamber 11 to the bypass flow path 17 as shown in (b) of FIG. It discharges to the mask MS through the flow path 19. FIG. Thus, the wearer can breathe through the mask MS.

 In this way, when the air is discharged through the bypass passage 17, the pressurizing portion 31b is exhausted of the charged air, so the pressing force of the plunger 31 is reduced. Therefore, the plunger 31 is again spaced apart from the valve seat 35 while returning to its original position as the elastic member 33 is circularly restored as shown in FIG. At this time, the supply hole 12 supplies the uncompressed primary air of the air tank AT to the pressurizing portion 31b to the one side of the first valve chamber 11 through the hollow 31a of the plunger 31. Charge the air.

Of course, the plunger 31 is about 8 kgf / The pressure is reduced at a pressure of cm 2. The plunger 31 is a stopper 36 is rotated forward or reverse rotation when the valve seat 35 is moved, the stroke distance is changed, so the decompression rate is adjusted.

On the other hand, the relief valve 20 is provided with the opening and closing member 23 is elastically supported by the elastic body 25, as shown in Figure 5 (b) when the reduced pressure secondary air is supplied to the bypass flow path (17). It shields the air hole 21a of the valve seat 21 through. However, in the relief valve 20, when the air pressure of the bypass passage 17 rises higher than the set air pressure, the opening / closing member 23 is moved to the elastic body 25 by the elevated air pressure as shown in FIG. 6B. While opening the air hole 21a of the valve seat 21. At this time, the secondary air supplied to the bypass flow path 17 is leaked through the outer circumferential surface of the opening and closing member 23, as shown in (b) of FIG. 6 and the outside through the vent hole 29a of the stopper 29. Is discharged. Thus, the bypass passage 17 maintains the internal pressure safely.

The bypass passage 17 supplies air to the communication line 64 in communication as shown in FIG. The communication line 64 supplies air to the second diaphragm 62 as shown in an enlarged view of FIG. 6A to convexly expand the second diaphragm 62. At this time, the second diaphragm 62 presses the second switch 65 to light the position indicator LP2. Therefore, the position indicator light LP2 expresses the position of the worker wearing the backpack BP with light. Of course, since the position indicator LP2 is continuously supplied with air to the bypass passage 17, the position indicator LP2 lights up from the time when the air is supplied to the bypass passage 17 to the time when the supply of air is stopped, while the worker breathes. Continue to reveal position.

Meanwhile, the direct flow passage 55a of the communication passage 55 communicating with the first valve chamber 11 is connected to the first valve chamber 11 through the supply hole 12 as shown by the arrow in FIG. Unreduced high pressure primary air flowing into the) is supplied from the first valve chamber (11). Then, the direct passage 55a is provided to the cap passage 54a formed in the cap 54 and the filling passage 73 in the groove form, as shown by arrows in FIG. The filling channel 73 supplies air to the pressure gauge GP connected to the air hose H by supplying high pressure air to the gauge channel 75 as shown by an arrow in FIG. 6 (b). Therefore, the pressure gauge GP is operated by the high pressure air supplied through the air hose H to display the remaining amount of the air box AT.

Here, the cap channel 54a described above is applied to the projection 52a of the spool 52 shown in (b) of FIG. 6 (b) by uncompressed high pressure primary air supplied from the filling channel 73 as described above. Supply. At this time, the spool 52 moves while compressing the reaction force spring 53 by the high pressure primary air as shown in FIG. 6 (b) to close the communication hole 51a. Therefore, since the communication hole 51a is closed by the spool 52, the first branch flow passage 56 shown in FIG. 6B and the second branch flow passage 56 'shown in FIG. 6A are shown. It is not communicated with.

On the other hand, the air tank (AT) is depleted over time, the pressure is gradually reduced. This air tank (AT) is weakened to a pressure of about 30 ~ 50 kgf / ㎠ at a pressure of about 300 kgf / ㎠ when the air is exhausted. Thus, the reservoir AT supplies the primary air at a weakened pressure. At this time, the supply hole 12 of the valve housing 10 supplies the primary air weakened at a pressure of 30-50 kgf / cm 2 to the first valve chamber 11. However, since the pressure reducing valve 30 is supplied with the supply holes 12 in which the weakened primary air is perpendicular to each other are refracted by the first valve chamber 11, the plunger 31 is not affected by the weakened primary air. Works the same. That is, since the plunger is directly affected by the primary air, when the pressure of the primary air is weakened, the plunger is moved even at a pressure (pressure) of about 8 kgf / cm 2 or less, thereby closing the inlet through which the primary air is introduced. , The pressure reducing valve 30 of the present invention operates only at a pressure (pressing pressure) of about 8 kgf / cm 2 because primary air is refracted and supplied in a direction (side) different from the stroke direction of the plunger 31. Therefore, the pressure reducing valve 30 opens and closes the supply hole 12 while controlling the inflow of the primary air while moving by the pressing force of about 8 kgf / cm 2 in the same manner regardless of the pressure of the primary air. Of course, this allows the valve housing 10 can continuously provide the reduced pressure at a constant pressure (pressure of about 8 kgf / ㎠) at all times irrespective of the amount of air in the reservoir (AT).

On the other hand, the aforementioned direct connection passage 55a communicating with the second valve chamber 51 provides the weakened primary air to the filling passage 73 when the weakened primary air flows into the first valve chamber 11. do. The filling passage 73 provides the weakened primary air to the gauge passage 75 to check the remaining amount of the reservoir AT through the pressure gauge GP. In addition, the direct flow passage 55a provides the weakened primary air to the spool 52 through the cap flow passage 54a as shown in FIG. At this time, the reaction force spring 53 expands as shown in (b) of FIG. 5 as the pressure of the primary air supplied to the spool 52 is weakened, so that the spool 52 is installed in the direction in which the cap 54 is installed. Move it. Therefore, the spool 52 opens the communication hole 51a which was closed while moving.

The communicating hole 51a is supplied with the reduced pressure secondary air supplied to the bypass flow path 17 through the cover flow path 11a while being opened by the movement of the spool 52. The communicating hole 51a supplies secondary air introduced into the first branch flow passage 56 and the second branch flow passage 56 ', which are communicated with each other, as shown in FIGS. 6A and 6B. At this time, the first branch flow passage 56 provides the secondary air to the whistle hole (HH) as shown enlarged in Figure 6 (a) to operate the whistle (HS). In addition, the second branch flow passage 56 ′ supplies the secondary air to the second diaphragm 61 as enlarged in FIG. 6A. Of course, the second diaphragm 61 turns on the warning lamp LP1 of the pressure gauge GP by operating the second switch 63b while being convexly deformed by the air pressure of the secondary air. Therefore, the whistle HS and the warning lamp LP1 alert the state in which the air in the air box AT is exhausted with a warning sound and lighting.

Here, since the nozzle passage NP of the whistle body HS2 is inclined and the end portion of the nozzle passage NP is narrowly formed, the whistle HS smoothly emits an alarm sound. And, whistle (HS) is a whistle body (HS2) is screwed into the whistle hole (HH) is fixed in a direction that does not interfere with objects such as worker's work tools or coating, and emits a warning sound continuously.

On the other hand, the valve housing 10, as shown in FIG. 10, because the overlap bracket 83 of the fixing member 80 installed on one side is fixed to the bracket 81 installed on the backpack (BP) by a hinge 85, so It flows when connector C of AT is connected. Therefore, the valve housing 10 can be easily connected to the air tank AT. If the fixing member 80 is not provided in the valve housing 10, the operator lifts the heavy air tank AT so that the valve housing 10 does not flow, and the connector C is connected to the supply hole of the valve housing 10. The work in accordance with (12) shall be repeated. This is because the connector C of the air box AT is a metal material formed in a straight line so that it does not easily coincide with the supply hole 12 of the valve housing 10. However, in the present invention, since the fixing member 80 is provided in the valve housing 10, the air tank AT may be easily connected to the valve housing 10.

On the other hand, the valve housing 10, when the adapter 91 of the quick charger 90 is mounted as shown in (b) of FIG. 5, when the exhaust chamber (AT) is exhausted as shown in FIG. The air in the air tank AT2 can be rapidly charged. At this time, the air of the other air tank (AT) is supplied to the first valve chamber 11 through the filling flow path 96, and then the air tank (AT) through the supply hole 12 in communication with the first valve chamber 11 Is charged. Therefore, the worker can be urgently supplied with air when the air box AT is exhausted, thereby preventing safety accidents and continuing the work.

Since the above-described embodiments are merely illustrative of the preferred embodiments of the present invention, the scope of application of the present invention is not limited to the above, and appropriate modifications are possible within the scope of the same idea. Therefore, since the shape and structure of each component shown in the embodiment of the present invention can be carried out by deformation, it is natural that the modification of the shape and structure belong to the appended claims of the present invention.

10 valve housing 11 first valve chamber
10a: housing body 10b: housing cover
20: relief valve 30: pressure reducing valve
31: Plunger 50: Alarm
AT: Reservoir MS: Mask
HS: Whistle GP: Pressure Gauge
70: gauge actuator 80: fixing means
90: rapid charger

Claims (17)

A valve housing having a straight first valve chamber inside which the air of the reservoir is introduced to be charged at a reduced pressure, and having a discharge passage for discharging air filled in the first valve chamber;
It is embedded in the first valve chamber of the valve housing, to control the air pressure of the air cylinder flowing into the first valve chamber according to the air pressure of the air filled in the first valve chamber to reduce the air pressure of the air cylinder flowing into the first valve chamber Pressure reducing valves; And
Refracting means for supplying air from the reservoir to the first valve chamber in a direction different from the axial direction of the first valve chamber, and refracting the air in the reservoir to the pressure reducing valve incorporated in the first valve chamber; ,
The pressure reducing valve,
A hollow is formed in the valve housing so as to be movable and parallel to the first valve chamber of the valve housing is provided to guide the air of the air reservoir refracted to the first valve chamber to the discharge passage and guide the discharge passage. A plunger which is provided with a pressurized portion pressurized by air filled in one end of the first valve chamber and moved by the pressurized portion;
An elastic member elastically supporting the plunger to provide a reaction force against the pressing force of the pressing portion; And
And a valve seat for closing the hollow while contacting the plunger by the movement of the plunger. The method of claim 1, wherein the refraction means,
A supply hole for supplying air from the reservoir to the first valve chamber of the valve housing is formed in the valve housing in a state orthogonal to the first valve chamber, such that the air supplied to the supply hole is perpendicular to each other. A regulator for a pneumatic cylinder, configured to bypass at a right angle by a valve chamber. The method of claim 1, wherein the valve housing,
A housing body having the first valve chamber and having a bypass passage constituting the discharge passage to guide the air filled in the first valve chamber to the outside; And
A cover flow path configured to constitute the discharge flow path, the housing cover coupled to the housing body to shield one end of the first valve chamber and communicate with the first valve chamber and the bypass flow path; Common regulator. delete According to claim 1, wherein the pressure reducing valve,
Further comprising a sealing member for sealing the outer peripheral surface of the plunger,
The sealing member,
A gasket fitted to an outer circumference of the plunger; And
And a spring for resiliently supporting the gasket in a state supported by the valve seat. The method of claim 5, wherein the pressure reducing valve,
It further includes an adjuster for adjusting the position of the valve seat,
The adjuster,
A stopper holder having a hole shape formed through the first valve chamber; And
Closing the stopper holder while being fastened to the stopper holder to support the rear of the valve seat, the fastener regulator characterized in that the fastened state is adjusted. The method of claim 1, wherein the valve housing,
And a mask flow passage communicating with the discharge flow passage to which an air hose of the mask is connected. The method of claim 1,
And an alarm for providing an alarm in accordance with the air pressure of the decompressed air discharged from the discharge passage of the valve housing provided with the first valve chamber in which air of the reservoir is filled and charged in a reduced pressure state. The method of claim 8, wherein the alarm,
A second valve chamber having a communication hole communicating with the discharge flow path of the valve housing for introducing the reduced pressure and having an open other side;
A spool embedded in the second valve chamber, the spool opening and closing the communication hole while moving by air of the uncompressed air cylinder flowing into the valve housing;
A reaction spring for providing a reaction force to the air of the reservoir to the spool;
A cap for shielding the other side of the second valve chamber to prevent separation of the reaction spring and the spool;
A communication passage communicating with the first valve chamber of the valve housing to provide the spool with uncompressed air of the reservoir;
A first branch passage branching the second valve chamber and branching air introduced into the communication hole; And
And a warning member for providing an alarm by the air branched into the first branch flow path. The method of claim 9, wherein the communication flow path,
A direct flow passage branching from the first valve chamber; And
And a cap flow path provided in the cap, the cap flow path communicating with the direct flow passage and the second valve chamber. The method of claim 9, wherein the alarm member,
And a whistle operated by the air in the first branch flow passage. The method of claim 11, wherein the whistle,
Whistle body is provided with a whistle body for injecting the air in the first branch flow path in an inclined state; And
And a whistle cylinder provided with a discharge hole for outputting sound while discharging the air injected from the whistle body of the whistle body. The method of claim 9, wherein the alarm member,
A diaphragm operated by the reduced pressure air discharged from the discharge passage of the valve housing; And
And a switch module pressurized by the diaphragm to operate a warning lamp or a position indicator. The method of claim 9,
Gauge actuator for operating the pressure gauge by providing the air of the uncompressed reservoir provided in the communication passage to the pressure gauge connected to the reservoir;
The gauge actuator,
A filling passage formed in a groove shape on an outer circumferential surface of the cap to fill the second valve chamber with air provided through the communication passage; And
And a gauge flow passage communicating with the second valve chamber and connected with an air hose of a pressure gauge to provide air filled in the second valve chamber to the pressure gauge. The method of claim 1,
And a fixing means for fluidly fixing the valve housing to the backpack worn on the back of the worker while the air cylinder is mounted. The method of claim 15, wherein the fixing means,
A bracket provided on the backpack while positioned outside the through hole formed in the backpack;
An overlapping bracket provided in the valve housing and overlapping the bracket while penetrating the through hole; And
And a hinge for rotatably coupling the bracket and the overlap bracket in an overlapping state. The method according to any one of claims 1 to 3 or 5 to 16,
Further comprising: a quick charger for rapidly charging the air of the other air to the air through the valve housing;
The quick charger,
An adapter provided with a check valve which is detached from the connector of the other reservoir to supply air supplied from the other reservoir to the valve housing, and prevents backflow of the supplied air; And
And a filling flow path formed in the valve housing and guiding air supplied through the adapter to the first valve chamber.

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