KR20210086076A - Sprinkler using memory alloy of washer type - Google Patents

Abstract

The present invention relates to a sprinkler using a washer type shape memory alloy, comprising: a sprinkler body into which a fire extinguishing water is introduced; a main body unit provided with a sprinkler frame through which the sprinkler body passes and is coupled; an ejection unit constraining ejection of the fire extinguishing water or ejecting the fire extinguishing water; and an operation unit configured to be detachable so that the fire extinguishing water is ejected when a heat is sensed due to a fire. The operation unit includes a washer actuator which is restored to an original shape thereof by absorbing the heat. According to the present invention, it is possible to quickly extinguish the fire by simplifying a sprinkler configuration and responding immediately to occurrence of the fire.

Description

Sprinkler using washer type shape memory alloy {SPRINKLER USING MEMORY ALLOY OF WASHER TYPE}

The present invention relates to a sprinkler using a washer-type shape memory alloy in which the sprinkler can be easily operated by simplifying the sprinkler configuration by providing a washer actuator formed of a shape memory alloy.

As is well known, among the facilities provided in a building, a fire extinguishing facility, which is a safety facility, is an essential facility for quickly extinguishing a fire when a fire occurs. As such a fire extinguishing facility, a fire hydrant, a fire extinguisher, etc. may be provided in a building, but the most common and effective facility is a sprinkler that extinguishes a fire by discharging fire water.

The sprinkler is provided on the ceiling of the building, and the water channel to which the fire extinguishing water is supplied is connected from the upper side, and the structure that can eject the fire extinguishing water is formed on the lower side. Representative examples of such sprinklers include a flush type sprinkler, a frame type sprinkler, and the like.

In the case of a fire, the above-described sprinkler detects heat and transfers it to a heat sensor, etc., melts the fuse metal, etc., so that the deflector opens the outlet, or the liquid provided in the glass bulb expands and destroys the glass bulb. By opening the vent, it is possible to extinguish the fire.

However, such a sprinkler must have a complex configuration such as a heat sensor, a fuse metal, and a glass bulb, and the heat sensed from the heat sensor must be transmitted to the fuse metal or glass bulb, etc. There is a problem in that fire extinguishing water is not immediately ejected.

1. Korea Registered Utility Model No. 20-0403462-0000 (Registered on Dec. 5, 2005) 2. Korea Registered Utility Model No. 20-0408362-0000 (Registered on Feb. 2, 2006)

The present invention is provided with a washer actuator made of a shape memory alloy so that the sprinkler can be operated quickly in case of a fire, and the washer actuator is deformed at a high temperature where a fire occurs. It is intended to provide a sprinkler using a washer type shape memory alloy.

In addition, the present invention is to provide a sprinkler using a washer-type shape memory alloy that can simplify the structure of the sprinkler by performing the functions of various configurations such as a heat collector and a fuse metal by the washer actuator.

The purpose of the embodiments of the present invention is not limited to the above-mentioned purpose, and other objects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. .

According to an embodiment of the present invention, a sprinkler body into which the fire extinguishing water is introduced, a main body portion provided with a sprinkler frame through which the sprinkler body is penetrated and coupled, and a jet for restricting the jetting of the fire fighting water or for jetting the fire fighting water A washer type including a washer actuator that absorbs heat and restores to its original shape by absorbing the heat and including an operation part that is formed to be detachable so that the fire extinguishing water is ejected when heat is sensed due to a fire. A sprinkler using a shape memory alloy may be provided.

In addition, according to an embodiment of the present invention, the main body portion is hollow inside, the upper end is provided with an inlet through which the fire fighting water is introduced, the lower end is provided with an outlet through which the fire extinguishing water is ejected, and a coupling flange protruding from the side surface. A washer-type shape memory alloy including the sprinkler body provided with, the upper end coupled to the coupling flange, at least one jig hole formed on the side surface, and the sprinkler frame having a locking protrusion formed inside the lower end portion using a shape memory alloy A sprinkler may be provided.

In addition, according to an embodiment of the present invention, the jet unit, a deflector for controlling the jetting of the fire extinguishing water by blocking or opening the jet port, is seated and coupled to the deflector, and is formed in a cap shape to shield the jet port and a deflector ring that is coupled to the deflector, and a deflector ring is formed so as to be caught on the clasp when the deflector is lowered to prevent the deflector from being separated, and one end is coupled to the inside of the valve cap, A sprinkler using a washer-type shape memory alloy including an impress screw that is coupled to the other end of the operating part so that the ejection of the fire extinguishing water is restrained may be provided.

In addition, according to an embodiment of the present invention, the deflector is provided with a plurality of support pins disposed along the outer circumferential surface of the bottom surface so as to be coupled to the deflector ring, and is formed to protrude upward between the support pins to be coupled to the deflector ring. A sprinkler using a washer-type shape memory alloy having a sprinkler seat coupled to the upper surface and formed so as to maintain the shielding of the spout is provided, the sprinkler is provided with a plurality of spout pins formed so that water is ejected in a radial direction. can be

In addition, according to an embodiment of the present invention, the operation part includes an inner loading plate having a hollow interior and positioned below the deflector to support the deflector, an end of an outer peripheral surface of the inner loading plate, and a distal end of the sprinkler frame. A retaining ring fixed to a side surface and provided to induce the removal of the operating part, coupled to the inner loading plate in contact with the inner loading plate, and a washer actuator whose shape is restored to induce the removal of the retaining ring when a fire occurs; , A sprinkler using a washer-type shape memory alloy including a fixing nut coupled to a lower portion of the inner loading plate may be provided.

In addition, according to an embodiment of the present invention, the washer actuator is provided in a disk shape formed to a predetermined thickness, and when absorbing heat, the outer part is deformed so that the outer part is bent downward, and the retaining ring is dropped downward. A sprinkler using a washer-type shape memory alloy may be provided.

In the present invention, since the washer actuator is provided with a shape memory alloy as a material, the washer actuator absorbs high-temperature heat and deforms, so that the operating part can be separated to immediately operate the sprinkler.

In addition, in the present invention, since the washer actuator itself may be contracted and deformed by absorbing heat, the configuration of a plurality of existing heat collectors and fuse metals may be omitted, and thus the structure of the sprinkler may be simplified.

1 is a view illustrating a sprinkler using a washer type shape memory alloy according to an embodiment of the present invention.
2 is a view for explaining a sprinkler using a washer type shape memory alloy according to an embodiment of the present invention.
3 is a view illustrating the operation of a sprinkler using a washer-type shape memory alloy according to an embodiment of the present invention.
4A and 4B are diagrams illustrating a washer actuator according to an embodiment of the present invention.
5A and 5B are views for explaining a washer actuator according to an embodiment of the present invention.

Advantages and features of embodiments of the present invention, and methods of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

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

1 is a view illustrating a sprinkler using a washer type shape memory alloy according to an embodiment of the present invention, and FIG. 2 is a view explaining a sprinkler using a washer type shape memory alloy according to an embodiment of the present invention, Figure 3 is a view illustrating the operation of a sprinkler using a washer-type shape memory alloy according to an embodiment of the present invention, Figures 4a and 4b is a view illustrating a washer actuator according to an embodiment of the present invention, Figure 5a and FIG. 5B is a view for explaining a washer actuator according to an embodiment of the present invention.

In addition, in the embodiment of the present invention, the inner direction means a direction toward the impress screw 124 positioned at the center of the sprinkler, and the outer direction means a direction toward the sprinkler frame 112 .

Referring to FIGS. 1 to 5B , a sprinkler using a washer-type shape memory alloy may include a main body 110 , an ejection part 120 , an operation part 130 , and the like.

The main body 110 is a sprinkler body using a shape memory alloy, and may include a sprinkler body 111 , a sprinkler frame 112 , and the like.

The sprinkler body 111 is the main body of the main body 110 , and fire extinguishing water flows into it, and may be stored in the hollow inside of the sprinkler body 111 until the fire extinguishing water is ejected.

The sprinkler body 111 may be formed in a cylindrical shape to withstand the water pressure of the fire extinguishing water, and a screw thread may be formed on the upper side to be coupled to a wall or the like or to be coupled to a water channel through which the fire water is moved (not shown). have.

In addition, an inlet 111a through which fire water is introduced may be provided at the upper end, and an outlet 111b through which fire water is ejected may be provided at the lower end.

A coupling flange 111c protruding along the outer circumferential surface of the side surface of the sprinkler body 111 may be formed. The end of the coupling flange 111c is bent downward, and the inner side of the end is formed with a thread, so that the upper end of the sprinkler frame 112 can be coupled, and the outside of the end of the coupling flange 111c is easy to grip. It may be formed in a polygonal shape or the like.

The sprinkler frame 112 is coupled through the sprinkler body 111 , and may serve to support the ejection unit 120 , the operation unit 130 , and the like.

A screw thread is formed on the side surface of the upper end of the sprinkler frame 112 to be coupled to the coupling flange 111c, and the sprinkler frame 112 is formed in a cylindrical shape with a hollow inside, and the lower portion of the sprinkler body 111 passes through. can be

In addition, a locking jaw 112a is formed inside the lower end of the sprinkler frame 112, and when the deflector 121 is dropped downward, the locking flange 123a of the deflector ring 123 is caught on the locking jaw 112a. Accordingly, it is possible to prevent the deflector 121 coupled to the deflector ring 123 from being separated from the sprinkler frame 112 .

In addition, since the retaining ring 132 is positioned in close contact with the lower surface of the engaging protrusion 112a, the retaining ring 132 may be fixed.

At least one jig hole 112b is formed on the side of the sprinkler frame 112, and when the operation unit 130 is coupled to the sprinkler frame 112, the deflector 121 located inside the sprinkler frame 112. The coupling force between the actuating unit 130 and the sprinkler frame 112 may be reduced due to the movement in the air, and in order to prevent this, an external jig (not shown) is inserted through the jig hole 112b of the sprinkler frame 112. By inserting into the inside to fix the deflector 121 , it is possible to prevent movement of the deflector 121 .

The ejection unit 120 serves to constrain the ejection of the fire extinguishing water or eject the fire extinguishing water, and may include a deflector 121, a valve cap 122, a deflector ring 123, an impress screw 124, and the like. can

The deflector 121 controls the ejection of fire extinguishing water by blocking or opening the ejection port 111b, and the bottom surface may be formed in a ring shape, and the valve cap 122 may be seated and coupled to the central portion.

In addition, a plurality of upwardly extending support pins 121a may be disposed along the outer circumferential surface of the bottom surface of the deflector 121 at regular intervals so that the deflector 121 is coupled to the deflector ring 123 . The upper end of the support pin 121a may be coupled to the engaging flange 123a of the deflector ring 123 , and by forming a plurality of them, the coupling of the deflector 121 and the deflector ring 123 may be stably supported.

In addition, a plurality of ejection pins 121b protruding upwardly formed between the support pins 121a disposed at regular intervals are positioned at predetermined intervals, so that fire extinguishing water may be radially ejected.

In detail, when a fire occurs and a sprinkler is operated, if the direction or amount of the sprayed fire extinguishing water is not constant, it is difficult to quickly extinguish the generated fire.

However, when a plurality of ejection pins 121b are formed at predetermined intervals along the outer circumferential surface of the bottom surface of the deflector 121, fire extinguishing water is separated and ejected between the plurality of ejection pins 121b, so that the fire extinguishing water can be ejected in a radial direction. In addition, as the interval between the ejection pins 121b is constant, the amount of fire extinguishing water that is ejected may be constantly adjusted.

On the other hand, the deflector 121 resists the water pressure of the fire extinguishing water flowing into the sprinkler body 111 as the operation unit 130 is supported by the sprinkler frame 112, thereby preventing the fire water from flowing out or being ejected. can be prevented

The valve cap 122 is seated and coupled to the central portion of the deflector 121 , is formed in a cap shape, and serves to shield the outlet 111b.

The inner side of the protruding portion of the central portion of the valve cap 122 is formed in a concave shape and provided with a screw thread, so that the impress screw 124 can be inserted therein.

In addition, a sprinkler sheet 122a formed of a material such as silicon may be provided on the upper surface, and by supporting the shielding of the spout, it is possible to maintain a watertight state.

The deflector ring 123 is coupled to the support pin 121a of the deflector 121 , and a locking flange 123a is formed to prevent the deflector 121 from being separated.

In detail, when the deflector 121 is separated and separated while descending as the operation unit 130 is separated due to a fire, the fire extinguishing water may not be ejected radially but may be mainly ejected downward.

On the other hand, when the engaging flange 123a is provided and the deflector 121 is lowered, the engaging flange 123a is caught and seated on the engaging jaw 112a, so that the deflector 121 can be prevented from being separated, so that fire extinguishing. Water can be ejected in a stable radial direction.

The impress screw 124 has one end coupled to the inner side of the valve cap 122 and the other end coupled to the inner loading plate 131 of the operating unit 130 , and includes the ejection unit 120 and the operating unit 130 . Bonds can support.

A thread is formed on the upper side of the impress screw 124 and can be fixedly coupled to the thread formed on the inner side of the valve cap 122, and the lower side is coupled to the center of the inner loading plate 131 in a fitting manner, When the operating unit 130 is detached, the operating unit 130 may be separated from the impress screw 124 .

In addition, in the center of the lower surface of the impress screw 124, a groove (reference numeral omitted) into which a wrench or the like can be inserted so that the impress screw 124 can be easily screwed with the valve cap 122 is formed. can

The operation unit 130 is formed to be detachable so that when heat is sensed due to a fire, fire extinguishing water is ejected, the inner loading plate 131, the retaining ring 132, the washer actuator 133, and the fixing nut ( 134) and the like.

The inner loading plate 131 has a hollow inside and is located under the deflector 121 , and serves to support the deflector 121 .

The upper portion of the inner loading plate 131 may be formed in a circular plate shape, etc., the lower central portion may be provided to protrude downward, and the inner side of the protruding lower portion may be formed to be hollow.

In addition, a thread is formed so that the fixing nut 134 can be coupled to the outer surface of the protruding lower portion of the inner loading plate 131 . In the case of a conventional sprinkler, a screw thread is formed on the inner side of the protruding lower part of the inner loading plate so that each component of the operating part can be coupled, and is coupled by the same configuration as the locking screw.

However, since the sprinkler according to the embodiment of the present invention is provided with a washer actuator 133, a plurality of components of the operating part can be omitted, and a thread is formed on the outer surface of the protruding lower portion of the inner loading plate 131, Since the inner loading plate 131 and the fixing nut 134 are coupled, the coupling of each component of the operation unit 130 may be supported.

In addition, a groove (reference numeral omitted) may be formed in the upper central portion to be coupled to the impress screw 124 by a fitting method, etc., and the central portion of the groove formed in the upper central portion may be inserted into the impress screw 124 so that a wrench or the like can be inserted. ), a hole (reference numeral omitted) may be formed to correspond in shape and position to the groove formed on the lower surface of the .

When a fire occurs and the sprinkler is operated, the inner loading plate 131 falls downward and passes through the sprinkler frame 112 to be separated, and the engaging flange 123a is caught by the engaging projection 112a so that it can be seated. , the diameter of the inner loading plate 131 may be formed to be smaller than the minimum inner diameter of the sprinkler frame 112 (ie, the maximum distance between the locking jaws 112a).

In addition, the outer portion of the inner loading plate 131 may be formed as a step so that the diameter between the upper end portions 131a is longer than the diameter between the lower end portions 131b, and the step difference between the upper end portion 131a and the lower end portion 131b. Due to this, a space (reference numeral omitted) may be formed between the outer side of the inner loading plate 131 and the inner surface of the lower end of the sprinkler frame 112 , and the retaining ring 132 may be located in this space.

That is, the lower end of the upper end 131a of the inner loading plate presses the retaining ring 132 while in contact with the retaining ring 132 , so that the retaining ring 132 is in close contact with the inner surface of the lower end of the sprinkler frame 112 . and can be fixed.

On the other hand, the upper end portion 131a of the inner loading plate 131 may be formed in a tapered shape (ie, a shape in which the width becomes narrower toward the distal end).

In general, the distal end of the upper end portion 131a of the inner loading plate 131 is formed in an angled shape. In this case, a vertical force in which the hydraulic pressure of fire extinguishing water is mainly transmitted through the impress screw 124 may be applied to the inner loading plate 131 , and such a vertical force may be applied to the inner loading plate 131 . At the contact point between the upper end portion 131a of the retaining ring 132 and the retaining ring 132 , a force may be applied to the retaining ring 132 in the vertical direction.

However, when the end shape of the upper end portion 131a of the inner loading plate 131 is formed in a tapered shape, the force in the vertical direction transmitted to the inner loading plate 131 is the end of the inner loading plate 131, the upper end portion 131a. may be dispersed by a force such as an up-down direction, a left-right direction, and the like, and the dispersed force may be applied to the retaining ring 132 in contact with the end of the upper end portion 131a.

Since the force in the left and right direction among these dispersed forces can further closely adhere the retaining ring 132 to the fixed position, in order for the retaining ring 132 to disengage, the upper end portion 131a has an angled end shape. The retaining ring 132 can be more firmly fixed when it is formed in a tapered shape than when it is formed.

The retaining ring 132 is fixedly positioned in contact with the end of the outer peripheral surface of the inner loading plate 131 and the inner end of the sprinkler frame 112. can

Here, as the retaining ring 132 is provided in an open shape in which a portion of the ring is omitted, in order for the retaining ring 132 to be mounted on the sprinkler, the retaining ring 132 is deformed to increase its diameter, and then in a relaxed shape. can be formed and mounted. On the other hand, as the washer actuator 133 is deformed, when the force for supporting the retaining ring 132 by the washer actuator 133 is removed, the retaining ring 132 moves downward while its diameter is contracted to its initial state. may be dropped out.

The washer actuator 133 is coupled in contact with the inner loading plate 131 , and when a fire occurs, the shape is restored to induce the retaining ring 132 to fall off.

Here, the washer actuator 133 is provided in a disk shape formed to a predetermined thickness, the protruding central portion of the inner loading plate 131 can pass through the hollow central portion, and the upper portion of the washer actuator 133 is the inner loading plate. It is in close contact with the 131 , and the lower part is in close contact with the fixing nut 134 , so that it can be fixed.

On the other hand, the shape memory alloy is a material that can be restored to its original shape when the shape memorized at a high temperature is memorized, and when the shape reaches the stored high temperature even when deformation is applied at a low temperature.

The actuator 133 of a sprinkler using a washer-type shape memory alloy according to an embodiment of the present invention may be formed of a shape memory alloy, and after forming and storing the washer actuator 133 in a specific shape at a set high temperature, By deforming the washer actuator 133 in a low temperature state, it may be disposed and fixed between the inner loading plate 131 and the fixing nut 134 .

When a fire or the like occurs, and the washer actuator 133 absorbs heat and reaches a set high temperature, the washer actuator 133 is deformed to a specific shape memorized at the time of initial creation and returned to drop the retaining ring 132 . can do it

For example, at a set high temperature, the washer actuator 133 may be stored in a shape in which its outer part is bent downward, and may be mounted to the sprinkler in a shape extending in the horizontal direction at a low temperature. In this case, in the event of a fire, the washer actuator 133 absorbs heat and as the outer part is bent downward, the retaining ring 132 and the washer actuator 133 that were closely supported by the washer actuator 133 . is released, and the retaining ring 132 can be disengaged downward.

Here, in general, the diameter of the retaining ring 132 of the sprinkler may be formed to be 1.6 millimeters, and in the event of a fire, the retaining ring 132 is dropped downward so that the sprinkler is immediately operated, a washer actuator ( 133) may be bent downward by 13 degrees to 17 degrees with respect to the horizontal plane.

In addition, for another example, at a set high temperature, the washer actuator 133 is formed and stored in a shape in which its outer side is contracted in the horizontal direction and its shape is deformed, and it can be mounted on a sprinkler in a shape extending in the horizontal direction at a low temperature. . In this case, when a fire occurs, the washer actuator 133 absorbs heat and as the outer part contracts and deforms in the horizontal direction, the retaining ring 132 and the washer actuator 133 that were closely supported by the washer actuator 133 . is released, and the retaining ring 132 can be disengaged downward.

On the other hand, when the washer actuator 133 of the sprinkler using the washer-type shape memory alloy according to the embodiment of the present invention is formed of a shape memory alloy formed of TiNi or the like, a plurality of configurations of the conventional flush-type sprinkler is may be omitted.

In detail, as the washer actuator 133 is provided with its lower surface exposed to the outside, the washer actuator 133 itself can absorb heat, so that the heat collector configuration in the conventional sprinkler can be omitted. In addition, since the washer actuator 133 is contracted by absorbing heat, the retaining ring 132 is removed from the fixed position, so that the inner loading plate 131 and the like can be induced, so that in a conventional sprinkler A fuse metal configuration and the like may be omitted.

As described above, as the washer actuator 133 according to the embodiment of the present invention is provided, the configuration of the conventional heat collector, fuse metal, etc. is omitted, so that the structure of the sprinkler can be simplified. In addition, in the conventional case, as the heat collector collects heat and the fuse metal is melted and removed by the collected heat, the configuration of the inner loading plate is dropped and the sprinkler can be operated, whereas in the embodiment of the present invention In the case of the sprinkler according to the above, since the washer actuator 133 is deformed by absorbing heat directly, the sprinkler can be operated, so that when a fire occurs, it can be responded more immediately.

The fixing nut 134 is coupled to the lower portion of the inner loading plate 131 , and may support the washer actuator 133 to be fixedly positioned at the lower portion of the inner loading plate 131 .

As described above, as the operation unit 130 of the sprinkler according to the embodiment of the present invention is provided with the washer actuator 133 formed of a shape memory alloy, a plurality of configurations such as a heat collector, a fuse metal, a coupling flange, etc. will be omitted. As possible, it is important that the washer actuator 133 is fixed to the lower portion of the inner loading plate 131 so that it can operate normally.

The fixing nut 134 is coupled to the thread formed at the bottom of the inner loading plate 131, and by supporting the washer actuator 133 located between the inner loading plate 131 and the fixing nut 134 from above, the washer actuator 133 may be positioned in close contact with the lower portion of the inner loading plate 131 .

In addition, the fixing nut 134 may serve to relieve an external shock applied to the sprinkler.

In the conventional sprinkler, a plurality of heat collector components are layered at the lower end of the outloading plate component, and this heat collector component performs a function of collecting the surrounding heat, but protects the sprinkler from the impact applied from the outside. It can also play a role.

On the other hand, in the sprinkler according to the embodiment of the present invention, as the washer actuator 133 serves to absorb heat, the heat collector configuration and the like may be omitted. As such, there is an advantage that the configuration of the sprinkler can be simplified by omitting a part of the sprinkler configuration, but it is difficult to protect the sprinkler from the impact applied from the outside.

In order to solve the above-described problems, the lower portion of the inner loading plate 131, the fixing nut 134 is provided so that the shock transmitted from the outside can be dispersed, so that the sprinkler configuration can be protected.

In addition, in general, the sprinkler is free-falling a cylindrical weight weighing 0.15N (15 grams) plus 0.15N (15 grams) to the sprinkler weight from a height of 1 meter centered on the deflector configuration, so that there is no crack or damage and there should be no abnormality in its function. Since the design criteria must be satisfied, the fixing nut 134 and the like capable of dispersing external shocks are provided, so that the design criteria as described above can also be satisfied.

In the above description, various embodiments of the present invention have been presented and described, but the present invention is not necessarily limited thereto. It will be readily appreciated that branch substitutions, transformations and alterations are possible.

110: main body 111: sprinkler body
112: sprinkler frame 120: ejection part
121: deflector 122: valve cap
123: deflector ring 124: impress screw
130: operation unit 131: inner loading plate
132: retaining ring 133: washer actuator
134: fixing nut

Claims (6)

A main body provided with a sprinkler body through which fire water is introduced, and a sprinkler frame through which the sprinkler body passes and is coupled;
a jetting part constraining the jetting of the fire fighting water or jetting the fire fighting water;
When a fire occurs and heat is sensed, including an operation part that is formed to be detachable so that the fire extinguishing water is ejected,
The operation unit is a washer actuator that absorbs heat and restores it to its original shape.
A sprinkler using a washer-type shape memory alloy containing a.
The method of claim 1,
The body part,
The sprinkler body having a hollow inside, an inlet through which the fire fighting water flows in, an outlet through which the fire extinguishing water is ejected at the lower end, and a coupling flange protruding from the side thereof;
The sprinkler frame having an upper end coupled to the coupling flange, at least one jig hole formed on a side surface, and a locking protrusion formed inside the lower end.
A sprinkler using a washer-type shape memory alloy containing a.
3. The method of claim 2,
The ejection part,
A deflector for controlling the jetting of the fire extinguishing water by blocking or opening the jetting port;
a valve cap that is seated and coupled to the deflector and is formed in a cap shape to shield the outlet;
a deflector ring coupled to the deflector and formed with a locking flange to be caught on the locking sill when the deflector descends to prevent the deflector from being separated;
One end is coupled to the inner side of the valve cap and the other end is coupled to the actuating part, an impress screw supporting the ejection of the fire fighting water to be restricted
A sprinkler using a washer-type shape memory alloy containing a.
4. The method of claim 3,
The deflector includes a plurality of support pins disposed along an outer circumferential surface of the bottom surface so as to be coupled to the deflector ring, and is formed to protrude upward between the support pins to eject the fire extinguishing water in a radial direction. having a pin,
The valve cap is coupled to the upper surface and provided with a sprinkler seat formed so as to maintain the shielding of the outlet.
A washer type sprinkler using shape memory alloy.
5. The method of claim 4,
The operation unit,
An inner loading plate having a hollow interior and positioned under the deflector to support the deflector;
a retaining ring fixed to an end of the outer circumferential surface of the inner loading plate and an inner surface of the distal end of the sprinkler frame and provided to induce the operation part to drop off;
a washer actuator coupled to the inner loading plate in contact with the inner loading plate and restoring its shape to induce the retaining ring to fall off when a fire occurs;
A fixing nut coupled to the lower part of the inner loading plate
A sprinkler using a washer-type shape memory alloy containing a.
6. The method of claim 5,
The washer actuator is
It is provided in a disk shape formed with a certain thickness,
A sprinkler using a washer-type shape memory alloy in which the retaining ring is dropped downward by deforming the shape so that the outer part is bent downward when heat is absorbed.

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