CN216022832U

CN216022832U - Fire extinguisher and starting mechanism thereof

Info

Publication number: CN216022832U
Application number: CN202122148507.XU
Authority: CN
Inventors: 王祺; 张俊峰; 李先军
Original assignee: Hubei Jiandun Fire Technology Co Ltd
Current assignee: Hubei Jiandun Fire Technology Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-15
Anticipated expiration: 2031-09-07

Abstract

The utility model relates to a starting mechanism and a fire extinguisher. This actuating mechanism includes: the starting shell is provided with an accommodating cavity; one end of the blasting fuse is arranged in the protection area, and the other end of the blasting fuse penetrates into the accommodating cavity; the starting piece is arranged on the starting shell, the starting part is positioned in the containing cavity, and the starting piece is started when the starting part is pressed and generates voltage; and one end of the lead electrode is electrically connected with the starting piece, and the other end of the lead electrode is used for extending into the fire extinguishing device. So, the high temperature that the conflagration produced ignites the fuse for the fuse burns to the holding intracavity, makes the air of holding intracavity be heated the inflation, leads to the atmospheric pressure increase of holding intracavity, thereby produces the pressure that extrudes the starting part, causes the starting part to start and produces instantaneous voltage. The lead electrode conducts the instantaneous voltage into the fire extinguishing device to start the fire extinguishing device to extinguish fire. Need not to lead into the extinguishing device with the fuse, avoided the fuse to burn and left the hole on extinguishing device, be favorable to guaranteeing extinguishing device's fire control effect.

Description

Fire extinguisher and starting mechanism thereof

Technical Field

The utility model relates to the technical field of fire extinguishing equipment, in particular to a fire extinguisher and a starting mechanism thereof.

Background

The fire disaster can make people life and property safety threatened greatly, so the application scene of the fire extinguishing device is very wide. In a scene with a large protection space or a scene with a broken circuit, a fire extinguishing device using a heat-sensitive wire as detection and starting is required. However, for fire extinguishing apparatuses with high sealing requirements (such as aerosol fire extinguishing apparatuses and non-pressure storage type fire extinguishing apparatuses), holes are left after the heat-sensitive wires are burnt into the fire extinguishing apparatuses, and even if a general sealing mode is adopted, the sealing measures can be disabled due to the fact that the internal pressure of the fire extinguishing apparatuses is too high after the fire extinguishing apparatuses are started, so that the fire extinguishing effect of the fire extinguishing apparatuses is reduced.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a fire extinguisher and a starting mechanism thereof, which solve the above-mentioned defects, aiming at the problem that the fire extinguishing effect is reduced due to the poor sealing effect of the fire extinguishing apparatus in the prior art.

An actuating mechanism comprising:

the starting shell is provided with an accommodating cavity;

one end of the blasting fuse is arranged in the protection area, and the other end of the blasting fuse penetrates into the accommodating cavity;

the starting piece is arranged on the starting shell and is provided with a starting part, the starting part is positioned in the accommodating cavity, and the starting piece is started when the starting part is pressed and generates voltage; and

and one end of the lead electrode is electrically connected with the starting piece, and the other end of the lead electrode is used for extending into the fire extinguishing device.

In one embodiment, the starting mechanism further comprises a gas generating agent arranged in the accommodating cavity, and one end of the blasting fuse located in the accommodating cavity extends to the gas generating agent. Therefore, when a fire disaster occurs, the high temperature generated by the fire disaster ignites the fuse cord and burns the fuse cord to the gas generating agent in the accommodating cavity, so that the gas generating agent is started. The started gas generating agent generates a large amount of gas instantly, so that the air pressure in the accommodating cavity is increased instantly, the pressure for extruding the starting part is generated, and the starting piece is started to generate instant voltage. The lead electrode conducts the instantaneous voltage into the fire extinguishing device to start the fire extinguishing device to extinguish fire.

In one embodiment, the starting mechanism further comprises a piston, wherein the piston is arranged in the accommodating cavity and divides the accommodating cavity into a first chamber and a second chamber;

one end of the fuse cord and the gas generating agent are located in the first cavity, the starting portion is located in the second cavity, the piston is in sliding fit with the inner wall of the containing cavity, and the piston can impact the starting portion in the process of moving along the inner wall of the containing cavity. In this way, when a fire breaks out, the high temperature generated by the fire ignites the fuse and burns the fuse to the gas generating agent in the first chamber, thereby starting the gas generating agent. The activated gas generating agent instantly generates a large amount of gas, so that the gas pressure in the first chamber is instantly increased, the piston is pushed to move towards the starting part until the starting part is impacted, and the starting part is started to generate instant voltage. The lead electrode conducts the instantaneous voltage into the fire extinguishing device to start the fire extinguishing device to extinguish fire.

In one embodiment, the actuating mechanism further comprises a sealing plug, the actuating shell has a first opening communicated with the first chamber, and the sealing plug is arranged in the first opening and provided with a threading hole for the fuse to pass through.

In one embodiment, the actuating shell further has a second opening communicating with the second chamber, the actuating member is mounted at the second opening, and the actuating portion enters the second chamber through the second opening.

In one embodiment, the gas generant is an aerosol fire suppressant.

In one embodiment, the blasting fuse is a heat-sensitive wire.

In one embodiment, the actuator is a piezoelectric ceramic. In this manner, the mechanical energy of the crush initiator is converted to electrical energy by the piezoelectric effect, thereby generating a transient voltage.

A fire extinguisher comprising an actuating mechanism as described in any one of the embodiments above and said fire extinguishing means.

In one embodiment, the fire extinguishing apparatus comprises a housing, an initiator, and a fire extinguishing agent; the shell comprises an inner cavity and a nozzle communicated with the inner cavity, and the starting agent and the fire extinguishing agent are arranged in the inner cavity;

one end of the lead electrode is electrically connected with the starting piece, the other end of the lead electrode penetrates into the starting agent in the inner cavity, and spark discharge is carried out under the action of the voltage to start the starting agent, and the starting agent generates gas after being started and pushes the fire extinguishing agent to be sprayed out of the nozzle.

Above-mentioned actuating mechanism and fire extinguisher, when protection zone takes place the conflagration, the high temperature that the conflagration produced ignites the fuse for the fuse burns to the holding intracavity of starting shell, makes the air of holding intracavity be heated the inflation, leads to the atmospheric pressure increase of holding intracavity, thereby produces the pressure that extrudes the starting part, causes the starting part to start and produce instantaneous voltage. The lead electrode conducts the instantaneous voltage into the fire extinguishing device to start the fire extinguishing device to extinguish fire. In this application, need not to introduce the fire wire to extinguishing device in, avoided leaving the hole on extinguishing device after the fire wire burning, be favorable to ensureing extinguishing device's fire extinguishing effect.

Drawings

Fig. 1 is a schematic view of a fire extinguisher according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The fire extinguisher provided by the embodiment of the utility model comprises a starting mechanism 1 and a fire extinguishing device 2, wherein the starting mechanism 1 starts the fire extinguishing device 2 when a fire disaster happens, and the fire extinguishing device 2 is started to perform fire spraying and extinguishing.

The starting mechanism 1 comprises a starting shell 10, a fuse 20, a starting piece 30 and a lead electrode 40, wherein the starting shell 10 is provided with a containing cavity 11. One end of the blasting fuse 20 is disposed at the protected area to detect a fire in the protected area. The other end of the blasting fuse 20 penetrates into the accommodating cavity 11 of the actuating shell 10. The actuating member 30 is mounted on the actuating shell 10 and has an actuating portion 31, and the actuating portion 31 of the actuating member 30 is located in the accommodating chamber 11. The actuating member 30 is actuated when its actuating portion 31 is pressurized, thereby generating a transient voltage. One end of the lead electrode 40 is electrically connected to the actuator 30 and the other end is adapted to extend into the fire extinguishing apparatus 2.

Thus, when a fire disaster occurs in the protection area, the high temperature generated by the fire disaster ignites the fuse cord 20, so that the fuse cord 20 burns into the accommodating cavity 11 of the starting shell 10, the air in the accommodating cavity 11 is heated and expanded, the air pressure in the accommodating cavity 11 is increased, the pressure for extruding the starting part 31 is generated, and the starting part 30 is started to generate the instantaneous voltage. The lead electrode 40 conducts the instantaneous voltage into the fire extinguishing apparatus 2 to activate the fire extinguishing apparatus 2 to fire extinguishing. In this application, need not to introduce pilot cable 20 to extinguishing device 2 in, avoided leaving the hole on extinguishing device 2 after pilot cable 20 burns, be favorable to ensureing extinguishing device 2's fire control effect.

In the embodiment of the present invention, the actuating mechanism 1 further includes a gas generating agent 50 disposed in the accommodating chamber 11. One end of the fuse 20 located in the accommodating cavity 11 extends to the gas generating agent 50. In this way, when a fire occurs, the high temperature generated by the fire ignites the fuse 20 and burns to the gas generating agent 50 of the receiving chamber 11, thereby activating the gas generating agent 50. The activated gas generating agent 50 instantaneously generates a large amount of gas, so that the air pressure in the accommodating chamber 11 is instantaneously increased, thereby generating a pressure pressing the activating part 31, causing the activating member 30 to be activated to generate an instantaneous voltage. The lead electrode 40 conducts the instantaneous voltage into the fire extinguishing apparatus 2 to activate the fire extinguishing apparatus 2 to fire extinguishing.

In the embodiment, the starting mechanism 1 further includes a piston 60, and the piston 60 is disposed in the accommodating cavity 11 and divides the accommodating cavity 11 into the first chamber 12 and the second chamber 13. One end of the fuse 20 and the gas generant 50 are located in the first chamber 12 and the initiator 31 is located in the second chamber 13. The piston 60 is in sliding fit with the inner wall of the accommodating cavity 11, and the piston 60 can impact the actuating portion 31 during the process of moving along the inner wall of the accommodating cavity 11, so as to apply pressure for pressing the actuating portion 31, so that the actuating member 30 is actuated to generate instantaneous voltage. Thus, when a fire occurs, the high temperature of the fire ignites the fuse 20 and burns the gas generant 50 in the first chamber 12, thereby activating the gas generant 50. The activated gas generant 50 momentarily generates a large amount of gas such that the gas pressure within the first chamber 12 momentarily increases, thereby urging the piston 60 toward the activation portion 31 until it strikes the activation portion 31, causing the activation member 30 to activate to generate a transient voltage. The lead electrode 40 conducts the instantaneous voltage into the fire extinguishing apparatus 2 to activate the fire extinguishing apparatus 2 to fire extinguishing.

In the embodiment shown, the actuator 1 further comprises a sealing plug 70, and the actuator housing 10 has a first opening communicating with the first chamber 12. The sealing plug 70 is disposed in the first opening and has a threading hole for the blasting fuse 20 to pass through. Thus, due to the elastic deformation of the sealing plug 70, after the fuse 20 burns into the first chamber 12, the elastic sealing plug 70 can rapidly seal the threading hole, and the gas generated by the gas generating agent 50 is prevented from leaking out of the threading hole. Alternatively, a rubber stopper may be used for the sealing plug 70.

In particular embodiments, the activation housing 10 also has a second opening in communication with the second chamber 13. The actuating member 30 is mounted at a second opening and the actuating portion 31 has the second opening into the second chamber 13 for actuation by being struck by the piston 60.

Alternatively, the actuator 30 may be a piezoelectric ceramic, and the mechanical energy of the pressing actuator 31 is converted into electric energy by a piezoelectric effect, thereby generating a transient voltage.

Optionally, the gas generating agent 50 is an aerosol fire extinguishing agent, and when the fuse 20 burns to the gas generating agent 50, the high temperature generated by the fuse 20 can activate the aerosol fire extinguishing agent, so that the aerosol fire extinguishing agent can instantly generate a large amount of gas.

Alternatively, the fuse 20 may employ a heat-sensitive wire so that a high temperature generated by a fire can ignite the heat-sensitive wire and heat generated by combustion of the heat-sensitive wire can activate the gas generant 50 so that the gas generant 50 instantaneously generates a large amount of gas.

Based on the starting mechanism 1, the utility model also provides a fire extinguisher, which comprises the starting mechanism 1 and the fire extinguishing device 2 in any embodiment. The starting mechanism 1 is used for starting the fire extinguishing device 2 to extinguish fire.

Specifically, the fire extinguishing apparatus 2 includes a housing, an initiator, and a fire extinguishing agent. The shell comprises an inner cavity and a nozzle communicated with the inner cavity, and the starting agent and the fire extinguishing agent are arranged in the inner cavity. One end of the lead electrode 40 is electrically connected to the starter 30, and the other end of the lead electrode 40 penetrates into the starter in the inner cavity and is subjected to spark discharge under the action of voltage to start the starter. After the starting agent is started, a large amount of gas is generated and pushes the fire extinguishing agent to be sprayed out of the nozzle.

In this way, when a fire occurs, the fuse 20 is ignited by the high temperature generated by the fire, the fuse 20 burns into the first chamber 12, the gas generating agent 50 is activated to generate a large amount of gas, the piston 60 is pushed to hit the activation portion 31, the activation piece 30 is activated to generate a voltage, the lead electrode 40 guides the voltage to the activator in the inner chamber, and the spark discharges to activate the activator. After the starting agent is started, a large amount of gas is generated, and the fire extinguishing agent in the inner cavity is pushed to be sprayed out from the nozzle, so that fire extinguishing is realized.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An actuating mechanism, comprising:

the starting shell (10) is provided with an accommodating cavity (11);

one end of the blasting fuse (20) is arranged in the protection area, and the other end of the blasting fuse penetrates into the accommodating cavity (11);

the starting piece (30) is arranged on the starting shell (10) and is provided with a starting part (31), the starting part (31) is positioned in the accommodating cavity (11), and the starting piece (30) is started when the starting part (31) is pressed and generates voltage; and

and a lead electrode (40) with one end electrically connected with the starting piece (30) and the other end extending into the fire extinguishing device (2).

2. The starting mechanism according to claim 1, characterized in that the starting mechanism (1) further comprises a gas generating agent (50) arranged in the accommodating cavity (11), and one end of the blasting fuse (20) located in the accommodating cavity (11) extends to the gas generating agent (50).

3. The actuating mechanism of claim 2, wherein said actuating mechanism (1) further comprises a piston (60), said piston (60) being disposed within said housing chamber (11) and dividing said housing chamber (11) into a first chamber (12) and a second chamber (13);

one end of the fuse cord (20) and the gas generating agent (50) are located in the first chamber (12), the starting portion (31) is located in the second chamber (13), the piston (60) is in sliding fit with the inner wall of the accommodating cavity (11), and the piston (60) can impact the starting portion (31) in the process of moving along the inner wall of the accommodating cavity (11).

4. The actuator mechanism according to claim 3, wherein the actuator mechanism (1) further comprises a sealing plug (70), the actuator housing (10) having a first opening communicating with the first chamber (12), the sealing plug (70) being disposed in the first opening and having a threading hole for the blasting fuse (20) to pass through.

5. The actuator mechanism according to claim 3, wherein the actuator housing (10) further has a second opening communicating with the second chamber (13), the actuator (30) being mounted at the second opening, and the actuator portion (31) entering the second chamber (13) through the second opening.

6. The activation mechanism of claim 2, wherein the gas generating agent (50) is an aerosol fire suppressant.

7. The actuator mechanism of claim 1, wherein the fuse (20) is a heat wire.

8. An actuator mechanism according to claim 1, wherein the actuator member (30) is a piezoelectric ceramic.

9. A fire extinguisher, characterized in that it comprises an actuating mechanism (1) according to any one of claims 1 to 8 and said extinguishing device (2).

10. A fire extinguisher according to claim 9, characterized in that said fire extinguishing means (2) comprises a housing, an activating agent and a fire extinguishing agent; the shell comprises an inner cavity and a nozzle communicated with the inner cavity, and the starting agent and the fire extinguishing agent are arranged in the inner cavity;

one end of the lead electrode (40) is electrically connected with the starting piece (30), the other end of the lead electrode (40) penetrates into the position of the starting agent in the inner cavity and carries out spark discharge under the action of the voltage so as to start the starting agent, and the starting agent generates gas after being started and pushes the fire extinguishing agent to be sprayed out of the nozzle.