KR20220046126A - Safety head for fire extinguisher - Google Patents

Abstract

In accordance with the present invention, provided is a fire extinguisher head with a safety pin which can be easily taken out even when a handle is gripped. In accordance with the present invention, the fire extinguisher head includes: a valve provided to spray fire extinguishing chemicals stored in a fire extinguisher body container in accordance with a pressing operation of a valve stem; a lower lever having a first pin hole formed thereacross; an upper lever connected with the lower lever through a hinge pin to be rotated around the hinge pin when pressed toward the lower lever, to press the valve stem while being folded in an overlappingly covered form, and having a second pin hole formed thereacross to communicate with the first pin hole; a support part formed on the edge of a lower side of the second pin hole of the upper lever; an engaged hole formed on the upper lever above the support part; a safety pin inserted through the first pin hole of the lower lever and the second pin hole of the upper pin hole, and preventing the rotation of the upper lever; and a stopper installed between an engaging part and the support part, having a support protrusion formed an inner surface opposed to the upper lever to support the support part so as to prevent the valve stem from being pressed when the upper lever is pressed, and having a third pin hole communicating with the first and second pin holes such that the safety pin can be inserted therethrough.

Description

Fire Extinguisher Head {SAFETY HEAD FOR FIRE EXTINGUISHER}

The present invention relates to a fire extinguisher head having a safety pin that prevents a valve stem from being pressed in order to prevent malfunction of the fire extinguisher, and more particularly, a fire extinguisher having a structure in which the safety pin is easily pulled out even when the upper and lower handles of the fire extinguisher are grasped for extinguishing a fire It's about the head.

In general, a powder fire extinguisher is to radiate a powder fire extinguishing agent by pressurizing or accumulating a powder fire extinguisher in the main body container (fire extinguisher container), and it is largely classified into a pressurized powder fire extinguisher and an accumulator powder fire extinguisher.

Among these, pressurized powder fire extinguishers are equipped with compressed gas in a main container containing powder extinguishing agent and a separate pressurized gas container, and in order to operate the fire extinguisher, the upper and lower levers are gathered together and tightly gripped to form a pressurized gas container ( CO2 charge) is pierced, and the pressure of the gas container for pressurization is induced into the body container to release the powder extinguishing agent to the outside. For this reason, production is now discontinued.

In the case of an accumulator powder fire extinguisher, after removing the safety pin by compressing and filling the main container with incombustible gas, which is the pressure source, together with the powder extinguishing agent, the upper and lower levers (handles) of the fire extinguisher head are gathered together and tightly gripped to open and operate the valve stem. , It consists of a structure in which the powdered extinguishing agent is released out through the siphon pipe (drug release pipe) by the pressurization action of incombustible gas such as carbon dioxide, and a pressure gauge is attached to the fire extinguisher head to check whether the non-combustible gas is filled.

In other words, the pressure accumulator powder fire extinguisher injects a certain amount of fire extinguishing agent through the spout of the main body container, and installs the fire extinguisher head (collectively, the entire valve including the upper and lower levers and pressure gauges) on the spout to pull out the safety pin in case of fire. The fire extinguishing agent in the main container can be discharged through the siphon tube, valve, hose and nozzle by gathering the upper and lower levers together and holding them tightly.

In this pressure accumulator powder fire extinguisher, the safety pin is inserted into the hole through the upper lever and the lower lever to prevent the fire extinguishing agent from being released when the upper lever is pressed due to a user's mistake or the overturning, impact, etc. of the fire extinguisher.

That is, the safety pin serves to fix the valve stem so that the upper lever does not normally rotate in the direction of the lower lever, and is also mounted in a structure that is pulled out within a certain force (10 kg).

However, in case of an emergency in the field, such as a fire, if the user is embarrassed and unconsciously grabs the upper and lower levers together, the upper lever presses the safety pin and a large shear force is transmitted. A phenomenon that does not occur in

Therefore, there is a problem in that the user cannot quickly pull out the safety pin while holding the handle in the event of a fire, so that the fire extinguisher cannot be used properly for initial suppression.

In order to solve this problem, Patent Document 1 discloses 'a fire extinguisher in which the safety pin comes out even when the handle is grabbed'. As shown in FIG. 1, this includes a coupling port 300 having a discharge pin 310 for spraying the extinguishing agent to the outside, and a lower handle fixed to the coupling member 300 by a first rotational shaft 210 ( 200), the upper handle 100 coupled to the first rotation shaft 210 and rotating in the direction of the lower handle 200 to press the discharge pin 310, the lower handle 200 and the upper portion A safety block 400 that is coupled to the second rotation shaft 220 between the handles 100 and prevents rotation of the upper handle 100 when the safety pin 500 is inserted so that the discharge pin 310 is not pressed. As a result, even when a load is applied to the upper handle 100 , the safety pin 500 can be easily removed.

That is, the force applied to the upper handle 100 is distributed to the lower handle 200 while being transmitted to the second rotation shaft 220 located in the vertical direction from the upper end of the safety block 400 , and the safety pin Only a partial force is transmitted to the second through-hole 420 into which 500 is inserted, thereby minimizing the shear force.

However, in this conventional fire extinguisher technology, when the user grips the handle, the safety block 400 presses the safety pin 500 with a lever action using the first rotation shaft 210 as a fulcrum to transmit the load. There is a problem in that it is very difficult to pull out the safety pin 500 in one situation.

The background or prior art described herein is information possessed by the inventor or acquired in the process of deriving the present invention, and is only intended to help in understanding the technical meaning of the present invention, and prior to the filing of the present invention, the technology to which this invention belongs It is revealed that it does not mean a technique widely known in the field, and the reference numerals in the prior art are not mutually exclusive with the reference numerals in the present invention.

KR 10-180080 B1 (2017.12.06) KR 10-1513426 B1 (2015.04.14) KR 10-1444688 B1 (2014.09.19) KR 10-1355661 B1 (2014.01.20) KR 10-1915713 B1 (2018.10.31)

Accordingly, the present inventor comprehensively considers the above-mentioned matters and at the same time, from the idea of solving the technical limitations and problems of the existing fire extinguisher safety device technology, the user can easily pull out the safety pin even while holding the handle, and in addition to the fire extinguisher In the process of storage and movement of the fire extinguisher, the safety pin automatically comes off due to a fall or impact, and the handle is pressed to prevent the release of the extinguishing agent. As a result, the present invention was created.

Accordingly, it is an object and technical problem to be solved by the present invention to provide a fire extinguisher head that allows the safety pin to be easily pulled out even in a state where the handle is gripped.

Another technical problem and object to be solved by the present invention is to provide a fire extinguisher head capable of preventing the safety pin from automatically falling out when the fire extinguisher is not in use.

Here, the technical problems and objects to be solved by the present invention are not limited to the technical problems and objectives mentioned above, and other technical problems and objects not mentioned will be clearly understood by those skilled in the art from the following description.

Specific means according to an aspect of the present invention for effectively achieving a specific technical purpose while embodying a new idea for solving the technical problem of the present invention as described above is coupled to the main body container of the fire extinguisher, A valve that is formed to spray the extinguishing agent contained in the main body container according to a pressing operation of a valve stem, a hook part is formed on one side, a lower lever fixed to the upper part of the valve and formed across the first pin hole, It is connected by the lower lever and the hinge pin, and when pressed in the direction of the lower lever, it rotates around the hinge pin and presses the valve stem while folding as if overlapping, and the second pin hole communicating with the first pin hole is horizontal. an upper lever formed to cross over, a support portion formed at the lower edge of the second pin hole of the upper lever, a locking hole formed in the upper lever above the support portion, a first pin hole of the lower lever, and a second pin of the upper lever A safety pin inserted through the hole and preventing rotation of the upper lever, is mounted between the support and the hook of the valve, and supports the support on the inner surface facing the upper lever to pressurize the upper lever A support jaw is formed to support the valve stem not to be pressed when the stopper is formed, and a third pin hole communicating with the first and second pin holes is formed so that the safety pin is inserted therethrough, formed on the upper side of the support jaw, A coupling hook that is elastically deformed and elastically coupled when inserted into the locking hole to maintain a mounted state of the stopper between the support portion and the hook portion of the valve, and a portion adjacent to the stopper among the coupling hooks. It is formed thinly, and when the upper lever is pressed in a state in which the safety pin is pulled out from the first to third pin holes, it is broken by shear force and breaks the mounting state of the stopper between the support part and the hook part of the valve. It presents a fire extinguisher head, characterized in that it employs including a portion.

Accordingly, according to the present invention, the safety pin can be easily pulled out even if the user is embarrassed or does not know how to use the fire extinguisher in the event of a fire and grabs the upper and lower levers together.

A specific means according to another embodiment of the present invention is coupled to the main body container of the fire extinguisher, and is formed to spray the extinguishing agent contained in the main body container according to the pressing operation of the valve stem, and is hung on one side A valve formed with an additional portion, a lower lever fixed to the upper portion of the valve and formed across the first pin hole, connected to the lower lever and a hinge pin and rotated about the hinge pin when pressed in the direction of the lower lever The upper lever is formed across the second pin hole communicating with the first pin hole, and a support part formed at the lower edge of the second pin hole of the upper lever, and the first of the lower lever. A safety pin that is inserted through the pin hole and the second pin hole of the upper lever and prevents rotation of the upper lever, is mounted between the support part and the hook part of the valve, and supports the support part on the inner surface of the upper lever. A stopper having a support jaw supporting the valve stem not to be pressed when the upper lever is pressed, and having a third pin hole communicating with the first and second pin holes so that the safety pin is inserted therethrough, and a regular interval with the stopper is formed integrally with the upper lever, and is integrally formed with a connection part that maintains the mounting state of the stopper between the support part and the hook part of the valve by contact with the upper lever, and an end of the connection part, the tip of the safety pin and It proposes a fire extinguisher head, characterized in that it employs including a pin holder for maintaining the state in which the safety pin is inserted into the first to third pin holes by a contact force.

Accordingly, the present invention allows the user to easily pull out the safety pin even if the user is embarrassed or does not know how to use the fire extinguisher and grabs the upper and lower levers together when a fire occurs. This can prevent the safety pin from coming off by itself.

In a preferred embodiment of the present invention, when the upper lever is pressed in a state in which the safety pin is pulled out from the first to third pin holes, the stopper slides and an inclined surface for inducing separation between the support part and the hook part of the valve By being formed on the edge of the support jaw, the upper lever can be operated to naturally press the valve stem in a state in which the safety pin is completely pulled out.

In a preferred embodiment of the present invention, the inner diameter of the third pin hole is formed smaller than the cross-sectional diameter of the safety pin so that a contact force is generated with the third pin hole in a state where the safety pin is inserted into the third pin hole, By forming a slit across the third pin hole to facilitate insertion of the safety pin into the three pin hole, it is possible to prevent the safety pin from easily or spontaneously falling out due to conduction or impact when the fire extinguisher is not in use.

According to the technical idea and embodiment (embodiment) of the present invention, which is based on a unique solution to solve the technical problem as described above, when a fire occurs, a user panics or does not know how to use a fire extinguisher, so the upper and lower levers together The stopper prevents or minimizes the shear force transmitted to the safety pin even if you grab it, and the safety pin can be easily pulled out.

In addition, when the fire extinguisher is stored, moved, or not in use, the safety pin automatically comes off due to a fall or an external shock, and the handle is pressed to prevent the fire extinguishing agent from being released.

Here, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is an exemplary view showing a fire extinguisher head according to the prior art.
2 is a perspective view showing a fire extinguisher head according to the first embodiment of the present invention.
3 is an exploded perspective view of the fire extinguisher head according to the first embodiment of the present invention.
4 is an enlarged perspective view of a stopper and a coupling hook constituting the fire extinguisher head according to the first embodiment of the present invention.
5 is a cross-sectional view showing a fire extinguisher head according to the first embodiment of the present invention.
6 is a longitudinal cross-sectional view showing the upper lever and the stopper constituting the fire extinguisher head according to the first embodiment of the present invention.
7 is a cross-sectional view showing an operating state of the fire extinguisher head according to the first embodiment of the present invention.
8 is a perspective view showing a fire extinguisher head according to a second embodiment of the present invention.
9 is an exploded perspective view showing the fire extinguisher head according to the second embodiment of the present invention.
10 is a rear perspective view showing a state in which the fire extinguisher head according to the second embodiment of the present invention is viewed from the rear.
11 is an enlarged perspective view of a stopper, a connection part, and a pin holder constituting a fire extinguisher head according to a second embodiment of the present invention.
12 is a rear view showing the fire extinguisher head according to the second embodiment of the present invention.

Hereinafter, an embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

Prior to this, the terms described below are defined in consideration of the functions in the present invention, which indicate that they should be interpreted as concepts consistent with the technical spirit of the present invention and meanings commonly or commonly recognized in the art.

In addition, when it is determined that a detailed description of a known function or configuration related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

The accompanying drawings show that parts are exaggerated or simplified for explanation of the configuration and operation of the technology and for convenience and clarity of understanding, and it is revealed that each component does not exactly match the actual size and shape.

In addition, in this specification, the term and/or is meant to include a combination of a plurality of related described items or any of a plurality of related described items, and when a part includes a certain component, it is a description that is specifically opposite This does not mean that other components are excluded, but other components can be further included.

That is, it means that there is a feature, number, step, operation, component, part, or a combination thereof described in this specification, and one or more other features or number, step operation component, part, or a combination thereof It is to be understood that this does not exclude the possibility of the existence or addition of those.

And terms such as upper, lower, upper, lower, upper, lower, upper, lower, front and rear, left and right are used for convenience to distinguish relative positions of each component. For example, the upper side in the drawing may be named or referred to as the upper side and the lower side as the lower side, the longitudinal direction may be named or referred to as the front-back direction, and the width direction may be named or referred to as the left/right direction.

Also, terms such as first, second, etc. may be used to describe various components. That is, terms such as 1st, 2nd, etc. may be used only for the purpose of distinguishing one component from another component. For example, a first component may be referred to as a second component without departing from the protection scope of the present invention, and the second component may also be referred to as a first component.

<Example 1>

2 to 7, the fire extinguisher head according to Embodiment 1 of the present invention is installed on the upper part of the main body container of the fire extinguisher, and is filled inside the main body container by the operation of the upper lever 30 and the valve stem 11. The fire extinguishing agent is sprayed to the outside, and the main components constituting it include a valve 10, a lower lever 20, an upper lever 30, a safety pin 40, a stopper 50, and a coupling hook 60. are doing

The valve 10 is formed to spray the fire extinguishing agent contained in the main body container (not shown) of the fire extinguisher according to the pressing operation of the valve stem 11 .

And a valve stem 11 is disposed inside the valve 10 , and an O-ring and a spring for maintaining the closed state of the valve 10 are provided at the lower end of the valve stem 11 .

That is, when the upper lever 30 presses the valve stem 11 down, the inside of the valve 10 is opened, and the fire extinguishing agent filled in the body container is ejected through the gap.

And on one side of the valve 10, a hook portion 12 for hanging on a wall or the like is formed.

In addition, a plug-type screw portion is formed at the lower portion of the valve 10 so as to be coupled to the main body container spout of the fire extinguisher in a screw-coupled manner.

The lower lever 20 is fixed to the upper part of the valve 10, and the first pin hole 21 through which the safety pin 40 passes is formed in the middle part.

That is, the lower lever 20 is formed in a shape having a 'U'-shaped cross-section so as to be overlapped as if entering the interior of the upper lever 30 .

And knuckles 24 for inserting the hinge pin 22 are formed on both sidewalls of the lower lever 20 located at the tip in the longitudinal direction.

That is, one end of the lower lever 20 is connected with a pin joint by the valve 10 and the hinge pin 22 , and the middle portion is fitted and restrained by the valve 10 .

Here, at a position adjacent to the first pin hole 21 of the lower lever 20 , a through hole 23 for inserting the coupling hook 60 may be formed to communicate with the engaging hole 33 of the upper lever 30 . there is.

The upper lever 30 is connected by the lower lever 20 and the hinge pin 22 so that the valve stem 11 can be easily pressed using the lever principle.

That is, the upper lever 30 is rotatably arranged around the hinge pin 22 on the upper side of the lower lever 20 , and rotates around the hinge pin 22 when pressed in the direction of the lower lever 20 . It is formed in a shape having a 'U'-shaped cross-section wider than the width of the cross-section of the lower lever 20 to press the valve stem 11 while being folded as if overlapping.

And a second pin hole 31 through which the safety pin 40 passes is formed across the middle portion of the upper lever 30 to communicate with the first pin hole 21 .

And the lower edge of the second pin hole 31 of the upper lever 30 is formed with a support part 32 that causes contact interference with the stopper 50 .

In addition, a locking hole 33 for inserting the coupling hook 60 is drilled above the support part 32 of the upper lever 30 .

In addition, knuckles 34 for inserting the hinge pin 22 are formed on both sidewalls of the upper lever 30 positioned at the tip in the longitudinal direction.

That is, one end of the upper lever 30 is connected by a pin joint with the valve 10 and the lower lever 20 and the hinge pin 22 .

Here, the support part 32 of the upper lever 30 has a hinge pin 22 so that the contact state with the support jaw 51 is easily released when the upper lever 30 and the lower lever 20 are gathered together and gripped. ) in the direction toward the free end of the upper lever 30 may be formed to be inclined obliquely.

The safety pin 40 normally prevents the rotation of the upper lever 30 so that the valve stem 11 is not pressed, the first pin hole 21 of the lower lever 20 and the second pin hole of the upper lever 30 ( 31) and is inserted.

The stopper 50 has the upper lever 30 in a state in which the safety pin 40 is inserted through the first pin hole 21 of the lower lever 20 and the second pin hole 31 of the upper lever 30. It is mounted between the hook portion 12 of the valve 10 and the support portion 32 of the upper lever 30 to prevent the valve stem 11 from being pressed by rotating in the direction of the lower lever 20 .

And on the inner surface facing the upper lever 30 of the stopper 50, the support part 32 of the upper lever 30 is supported, so that when the user grabs the upper lever 30 or pressurizes, the valve stem 11 moves. A support jaw 51 that supports not to be pressed is formed in a shape corresponding to the support portion 32, and the safety pin 40 is inserted through the support jaw 51 above the first and second pin holes. A third pin hole (53) communicating with (21) and (31) is formed.

In addition, when the upper lever 30 is pressed in a state in which the safety pin 40 is pulled out from the first to third pin holes 21, 31 and 53 at the edge of the support jaw 51, the stopper 50 generates a shear force. An inclined surface 52 is formed to induce separation between the hook portion 12 of the valve and the support portion 32 of the upper lever 30 while sliding by the .

That is, even when the user grips or presses the upper lever 30 , the support jaw 51 of the stopper 50 supports and stably supports the support part 32 of the upper lever 30 , so that the safety pin 40 has a shear force. The safety pin 40 can be easily pulled out because it does not transmit or act.

In addition, when the safety pin 40 is pulled out to use a fire extinguisher, such as in case of a fire, when the upper lever 30 is gripped or pressurized, the upper lever 30 ) while sliding along the inclined surface 52, the upper lever 30 rotates around the hinge pin 22 in the direction of the lower lever 20 to press the valve stem 11.

Here, the inner diameter of the third pin hole 53 is formed smaller than the cross-sectional diameter of the safety pin 40 so that a contact force is generated in a state in which the safety pin 40 is inserted, and the safety pins 40 on both sides of the third pin hole 53 ), a slit 54 is formed across to hold the safety pin 40 stably while smoothly opening when inserted.

The coupling hook 60 is in the hooking hole 33 of the upper lever 30 to maintain the mounting state of the stopper 50 between the hooking part 12 of the valve and the support part 32 of the upper lever 30. It is formed protruding on the upper side of the support jaw 51 so as to be elastically fitted while being closed and widened by elastic deformation during insertion.

That is, the coupling hook 60 is coupled to the locking hole 33 of the upper lever 30 , so that the stopper 50 does not intend in usual times the hook portion 12 of the valve 10 and the support of the upper lever 30 . It can be prevented from falling out between the parts (32).

And, a portion adjacent to the stopper 50 of the coupling hook 60 is formed with a relatively thin breaking portion 61 .

That is, the breaking part 61 is easily broken by the shear force when the user presses the upper lever 30 in a state in which the safety pin 40 is pulled out from the first to third pin holes 21, 31 and 53. It is separated between the hook part 12 of the valve and the support part 32 of the upper lever, thereby releasing the mounted state of the stopper 50 .

Here, the stopper 50, the coupling hook 60, and the breaking part 61 may be made of a flame-retardant synthetic resin material having some elasticity.

The main action and operating principle of the fire extinguisher head according to the embodiment of the present invention configured as described above will be described as follows.

First, as shown in FIG. 6, even if the user grabs the upper lever 30 and the lower lever 20 together in a state where the user does not pull out the safety pin 40, the safety pin 40 is inserted into the first to third pin holes ( Since the upper lever 30 is constrained by passing through 21, 31 and 53, the valve stem 11 cannot be pressed.

In addition, the coupling hook 60 is engaged with the engaging hole 33, and the safety pin 40 is inserted to generate a contact force in the third pin hole 53 of the stopper 50. Therefore, it is possible to prevent the fire extinguishing agent from being released in the body container while the safety pin 40 is automatically removed.

In addition, since the support jaw 51 of the stopper 50 supports the support portion 32 of the upper lever 30 , shear force does not act on the safety pin 40 , so that it can be easily pulled out.

In this state, as shown in FIG. 7, the safety pin 40 is pulled out from the first to third pin holes 21, 31, 53 in order for the user to use a fire extinguisher, such as when a fire occurs, and the upper lever 30 When pressed, the stopper 50 supporting the support part 32 of the upper lever 30 flexibly slides in the horizontal direction by the inclined surface 52 and the shear force, and at the same time, the breaking part of the coupling hook 60 As the 61 is broken by the shear force and external force action of the upper lever 30, the stopper 50 is naturally separated between the hook part 12 of the valve 10 and the support part 32 of the upper lever 30, , when this happens, the upper lever 30 rotates around the hinge pin 22 in the direction of the lower lever 20 to press the valve stem 11 so that the extinguishing agent in the body container is sprayed through the outlet of the valve 10 . .

That is, when the user pulls out the safety pin 40 while holding the upper lever 30 and the lower lever 20 , the concentrated load generated on the support part 32 of the upper lever 30 supports the stopper 50 . Since the shear force transmitted to the safety pin 40 is minimized or prevented while being transmitted to the jaw 51 or partially dispersed by the support jaw 51, the safety pin 40 can be easily pulled out, thereby for initial suppression of a fire. Fire extinguishers can be used more quickly and effectively.

<Example 2>

8 to 12, the main components constituting the fire extinguisher head according to the second embodiment of the present invention are a valve 10, a lower lever 20, an upper lever 30, a safety pin 40, and a stopper. 50 , a connection part 70 and a pin holder 71 are included.

The connection part 70 is in contact with the upper lever 30 to maintain the stopper 50 mounted between the hook part 12 of the valve 10 and the support part 32 of the upper lever 30. (50) is integrally formed.

And when the connection part 70 pulls out the safety pin 40 to use a fire extinguisher, such as in case of fire, and presses the upper lever 30, the stopper 50 connects the hook part 12 of the valve 10 and the upper lever ( 30) is formed in a shape having a certain interval (play) with the upper lever 30 so that it can fall naturally between the support portions 32 .

That is, the connection part 70 has a cross-sectional shape like a '∩' shape so that it can be mounted as if covering the upper surface and both side walls of the upper lever 30 from the upper side of the upper lever 30 .

The pin holder 71 is integrally formed with the free end of the connection part 70 to maintain the state in which the safety pin 40 is fitted in the first to third pin holes 21 , 31 , 53 .

That is, the pin holder 71 restrains the state in which the safety pin 40 is inserted into the first to third pin holes 21, 31, 53 by the contact force with the tip of the safety pin 40 in normal times, so that the The lever 30 and the valve stem 11 are pressed to prevent the extinguishing agent from being released in the main container, and it is formed in a shape having a hollow with an inner diameter slightly smaller than the cross-sectional diameter of the safety pin 40.

Here, the stopper 50, the connection part 70, and the pin holder 71 are preferably made of a flame-retardant synthetic resin material having some elasticity.

As such, in the fire extinguisher head according to the second embodiment of the present invention, when a fire occurs, the user panics or does not know how to use the fire extinguisher, so even if the upper lever 30 and the lower lever 20 are gathered together and grabbed, the support jaw of the stopper 50 Since the 51 supports the support part 32 of the upper lever 30, shear force does not act on the safety pin 40, so it can be easily pulled out.

And in normal times (when the fire extinguisher is not in use), the connection part 70 restricts the movement of the stopper 50, and the tip of the safety pin 40 is constrained by the contact force of the pin holder 71, so the safety pin 40 is The state inserted into the first to third pin holes 21, 31 and 53 can be stably maintained, and this can prevent the safety pin 40 from automatically falling out due to conduction or impact when the fire extinguisher is not in use. there is.

In addition, when the user pulls out the safety pin 40 from the first to third pin holes 21, 31, 53 and presses the upper lever 30 to use the fire extinguisher, the support part of the upper lever 30 ( 32) between the hook portion 12 of the valve 10 and the support portion 32 of the upper lever 30 as the stopper 50, which was supporting it, naturally slides in the horizontal direction by the inclined surface 52 and shear force. When it is separated, the upper lever 30 rotates around the hinge pin 22 in the direction of the lower lever 20 and presses the valve stem 11 so that the extinguishing agent in the body container is released through the outlet of the valve 10. is sprayed

Here, among the components related to the fire extinguisher head according to the second embodiment of the present invention, the components having the same or similar operational effects as those of the above-described embodiment 1 use the same reference numerals, and repetitive and detailed description thereof will be omitted.

On the other hand, the present invention is not limited by the above-described embodiment and the accompanying drawings, and can be variously modified and applied in various ways not illustrated within the scope without departing from the technical spirit of the present invention, as well as each It is clear to those of ordinary skill in the art to which the present invention pertains that it can be widely applied by changing the component substitution and other equivalent embodiments.

Therefore, the contents related to the modification and application of the technical features of the present invention should be interpreted as being included within the technical spirit and scope of the present invention.

10: valve 11: valve stem
12: hanger 20: lower lever
21: first pin hole 22: hinge pin
30: upper lever 31: second pin hole
32: support part 33: locking hole
40: safety pin 50: stopper
51: support jaw 52: inclined surface
53: third pin hole 54: slit
60: coupling hook 61: breaking part
70: connection 71: pin holder

Claims (3)

a valve coupled to the main body container of the fire extinguisher and formed to spray the fire extinguishing agent contained in the main body container according to a pressing operation of a valve stem, and having a hook portion formed on one side;
a lower lever fixed to the upper portion of the valve and having a first pin hole crossed;
It is connected by the lower lever and the hinge pin, and when pressed in the direction of the lower lever, it rotates around the hinge pin and presses the valve stem while folding as if overlapping, and the second pin hole communicating with the first pin hole is horizontal. The upper lever formed by the spur;
a support portion formed at a lower edge of the second pin hole of the upper lever;
a locking hole formed in the upper lever above the support part;
a safety pin inserted through the first pin hole of the lower lever and the second pin hole of the upper lever to prevent rotation of the upper lever;
A support jaw is formed between the hook part of the valve and the support part, and supports the support part on an inner surface facing the upper lever so that the valve stem is not pressed when the upper lever is pressed; a stopper having a third pin hole communicating with the first and second pin holes so that the safety pin is inserted therethrough;
a coupling hook formed on the upper side of the support jaw and elastically retracted and then opened by elastic deformation when inserted into the locking hole to maintain the mounting state of the stopper between the support part and the hook part of the valve; and
A portion of the coupling hook adjacent to the stopper has a relatively thin thickness, and when the upper lever is pressed in a state in which the safety pin is pulled out of the first to third pin holes, the hook portion of the valve is cut off by shear force. and a breaking part for releasing the mounting state of the stopper between the support part;
Including, a fire extinguisher head.
a valve coupled to the main body container of the fire extinguisher and formed to spray the fire extinguishing agent contained in the main body container according to a pressing operation of a valve stem, and having a hook portion formed on one side;
a lower lever fixed to the upper portion of the valve and having a first pin hole crossed;
It is connected by the lower lever and the hinge pin, and when pressed in the direction of the lower lever, it rotates around the hinge pin and presses the valve stem while folding as if overlapping, and the second pin hole communicating with the first pin hole is horizontal. The upper lever formed by the spur;
a support portion formed at a lower edge of the second pin hole of the upper lever;
a safety pin inserted through the first pin hole of the lower lever and the second pin hole of the upper lever to prevent rotation of the upper lever;
A support jaw is formed between the hook part of the valve and the support part, and supports the support part on the inner surface so that the valve stem is not pressed when the upper lever is pressed, and the safety pin is inserted therethrough. a stopper having a third pin hole communicating with the first and second pin holes;
a connection part integrally formed with the stopper and maintaining a mounted state of the stopper between the hook part of the valve and the support part by contact with the upper lever; and
a pin holder integrally formed at the end of the connection part and maintaining a state in which the safety pin is inserted into the first to third pin holes by a contact force with the tip of the safety pin;
Including, a fire extinguisher head.
3. The method of claim 1 or 2,
When the upper lever is pressed in a state in which the safety pin is pulled out from the first to third pin holes, the stopper slides and an inclined surface is formed on the edge of the support jaw to induce separation between the hook part of the valve and the support part. become,
The inner diameter of the third pin hole is formed to be smaller than the cross-sectional diameter of the safety pin to generate a contact force in a state in which the safety pin is inserted, and a slit across the third pin hole to facilitate insertion of the safety pin into the third pin hole This formed, fire extinguisher head.

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