CN114849122B - Open-close type fire extinguishing device - Google Patents

Abstract

The invention discloses an open-close type fire extinguishing device which comprises an outer shell, an inner shell, a fire extinguishing agent, a cooling agent and a starting device. The housing comprises housing side walls, a housing top and a bottom plate; the side wall of the shell is provided with a nozzle; the inner shell comprises an inner shell side wall, an inner shell top and a bottom opening; the inner shell is rotatably arranged in the outer shell, and when the inner shell is not rotated, the bottom plate closes the bottom opening, so that a third accommodating space is formed by the bottom plate, the side wall of the inner shell and the top of the inner shell; when the inner shell rotates, the bottom plate opens the bottom opening; the fire extinguishing agent and the coolant are disposed in the third accommodating space, and the starting device is connected with the fire extinguishing agent. The open-close type fire extinguishing device can be favorably used for fire extinguishing treatment in special occasions such as distribution boxes, electrical cabinets, cable troughs, communication base stations, new energy vehicles, energy storage power stations and the like.

Description

Open-close type fire extinguishing device

Technical Field

The present invention relates generally to a fire extinguishing apparatus for fire protection, and more particularly to an opening and closing type fire extinguishing apparatus which can advantageously perform fire extinguishing treatment in special situations such as distribution boxes, electrical cabinets, cable troughs, communication base stations, new energy vehicles, energy storage power stations, and the like.

Background

At present, people begin to use a hot aerosol fire extinguishing system for fire fighting of special occasions such as distribution boxes, electrical cabinets, cable troughs, communication base stations, new energy vehicles, energy storage power stations and the like. The hot aerosol fire extinguishing system generally comprises an aerosol fire extinguishing agent, a storage device of the aerosol fire extinguishing agent, an aerosol ignition device, a fire extinguishing gas spraying device and the like. In addition, certain aerosol fire suppression systems also contemplate the use of a coolant in order to reduce the temperature of the injected gas. The national standard GA 499.1-2010 aerosol fire extinguishing system specifies various performance requirements, experimental methods, inspection rules and the like of the hot aerosol fire extinguishing device.

The utility model discloses a chinese utility model patent that grant bulletin number is CN216676802U relates to a novel subsides of putting out a fire, and it includes casing 1, casing 1 includes epitheca 11 and inferior valve 12, be provided with solid-state fire extinguishing agent 2 in the inferior valve 12, solid-state fire extinguishing agent 2 periphery is provided with many stands 121, many stands 121 restrain solid-state fire extinguishing agent 2 position in inferior valve 12 jointly, the inside cavity of stand 121, the position that epitheca 11 corresponds stand 121 is provided with threaded connection hole 111, and the bolt inserts stand 121 and threaded connection hole 111 threaded connection, inferior valve 12 side is provided with orifice 4 and line hole 3, solid-state fire extinguishing agent 2 is connected with pilot line 5, pilot line 5 both ends are passed line hole 3 and are exposed outside, and when pilot line 5 pilot, solid-state fire extinguishing agent 2 produces a large amount of fire extinguishing substances and spouts through orifice 4. Keep away from and be provided with baffle 7 between the stand 121 in line hole 3 and the 12 inner walls of inferior valve between floor 6 and the stand 121, form reaction zone 8 and airtight district 9 in the inferior valve 12, reaction zone 8 is used for placing ignition line 5, solid-state fire extinguishing agent 2 and solid-state cooling material 15, be provided with alarm component 10 in the airtight district 9. The solid cooling substance 15 is arranged in the reaction area 8, the solid cooling substance 15 is a cooling block, the cooling block is provided with a through hole 151, and due to the fact that the fire extinguishing substance is high in temperature instantly generated, when the fire extinguishing substance is sprayed out from the spray holes 4 through the cooling block, the temperature is reduced, and high-temperature damage is reduced.

Chinese utility model patent with publication number CN215309895U relates to a miniature fire extinguishing apparatus 100, which mainly comprises a housing 10 and a bottom cover 20 fixedly connected with the housing 10, wherein the housing 10 is hollow cylinder-shaped, and is internally provided with a fixing groove 11 for placing an aerosol gas generating grain 20, and the side wall of the housing 10 is further provided with a plurality of nozzles 12. The aerosol gas generating charge 20 is an aerosol generating charge made into a columnar solid medicament, which can generate oxidation-reduction reaction and rapidly generate a large amount of aerosol colloidal fire extinguishing substances when being heated, and is used for extinguishing fire. The retaining groove 11 is a thin-walled cylindrical structure that is substantially coaxial with the housing 10 and forms an elongated annular air passage 13 with the inner wall of the housing 10. The annular air duct 13 is substantially of a closed structure, and has one end communicating with the fixing groove 11 and the other end communicating with the plurality of nozzles 12. When a disaster occurs, the aerosol fire extinguishing substance generated by the aerosol gas generating grain 20 is sprayed outwards through the fixed groove 11, the annular air passage 13 and the plurality of nozzles 12 in sequence, and the flame is extinguished. In order to further improve the cooling effect, the cooling agent 60 is fixedly arranged in the annular air passage 13, the cooling agent 60 is preferably spherical and uniformly distributed in the annular air passage 13, and the high-temperature aerosol fire extinguishing substance is cooled by the cooling agent 60 when passing through the annular air passage, so that the temperature can be obviously reduced when being sprayed out, and the fire extinguishing effect is improved.

However, in the above-mentioned conventional fire extinguishing apparatus, the nozzle of the fire extinguishing gas is always opened, which not only makes the fire extinguishing agent easily absorb moisture in the surrounding environment to be damp and fail, but also makes small particles of the coolant to be spilled through the nozzle when small particles of the coolant are used. To solve this technical problem, it is conceivable to seal the spout with an adhesive tape or the like, but this method brings other technical problems. In the case of sealing the spout using an adhesive tape or the like, in order to allow the fire extinguishing gas to be sprayed, it is necessary to make the temperature at the spout high enough to melt or burn off the adhesive tape, or to make the pressure at the spout high enough to break through the adhesive tape, which not only increases the waiting time for the fire extinguishing gas to start spraying, but also an excessively high spout temperature may cause a secondary fire risk.

In addition, in the solution of CN216676802U, the volume of the cooling block is large, which not only reduces the spraying speed of the fire extinguishing gas, but also limits the contact area between the fire extinguishing gas and the cooling block, thereby resulting in poor temperature reduction effect. In the solution of CN215309895U, the fire extinguishing gas needs to pass through a long annular air passage to reach the nozzle, which reduces the spraying speed of the fire extinguishing gas; although small particle coolant can be used in the annular gas duct, there is still a need for improvement in heat transfer efficiency.

Therefore, a fire extinguishing apparatus is needed, which not only can solve the problem of the fire extinguishing agent failing due to being wetted, reduce the waiting time for the fire extinguishing gas to start to be sprayed, and avoid the danger of secondary fire, but also can effectively reduce the temperature at the nozzle of the fire extinguishing apparatus, and enhance the fire extinguishing effect.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides an open-close type fire extinguishing device which can solve the problem that a fire extinguishing agent is affected with damp and fails, reduce the waiting time for fire extinguishing gas to start to be sprayed out, avoid the danger of secondary fire, effectively reduce the temperature at a nozzle of the fire extinguishing device and enhance the fire extinguishing effect.

According to one aspect of the invention, an open-close type fire extinguishing apparatus is provided, which comprises an outer shell, an inner shell, fire extinguishing agent, cooling agent and starting device, and is characterized in that:

the housing comprises housing side walls, a housing top and a bottom plate, wherein the housing side walls, the housing top and the bottom plate form a first accommodation space;

a nozzle is arranged on the side wall of the shell;

the inner shell comprises an inner shell side wall, an inner shell top and a bottom opening, wherein the inner shell side wall, the inner shell top and the bottom opening form a second accommodating space, and except the bottom opening, other surfaces of the second accommodating space form a closed structure;

the inner shell is rotatably arranged in the outer shell, when the inner shell does not rotate, the bottom plate of the outer shell closes the bottom opening of the inner shell, wherein a third accommodating space is formed by the bottom plate of the outer shell, the side wall of the inner shell and the top of the inner shell, and when the inner shell rotates, the bottom plate of the outer shell opens the bottom opening of the inner shell;

the fire extinguishing agent and the coolant are disposed in the third accommodating space, and the starting device is connected with the fire extinguishing agent.

According to another aspect of the present invention, the side wall of the housing and the bottom plate may be an integrally formed structure or a separate structure. When the shell side wall and the bottom plate are of split structures, the bottom plate can be embedded in the shell side wall; alternatively, the base plate may be fixed to the lower end surface of the housing while being positioned outside the side wall of the housing. Alternatively, the base plate may be secured to the housing side walls by means such as screws, snap-fit structures, glue, etc.

According to yet another aspect of the invention, the housing may be square or hemispherical. When the housing is hemispherical, the housing sidewall and the housing top may be a hemispherical peripheral portion and a hemispherical top portion, respectively.

According to yet another aspect of the invention, a spout is provided on the housing sidewall. The fire extinguishing gas generated by the oxidation-reduction reaction of the fire extinguishing agent can be sprayed to the external environment of the fire extinguishing device through the nozzle, and then the fire extinguishing effect is achieved. The shape of the nozzle can be set as rectangle, circle, semicircle, hexagon, etc.

According to an aspect of the present invention, when the casing includes a plurality of casing sidewalls, the spout may be provided on only one of the casing sidewalls, or the spout may be provided on a plurality of the casing sidewalls.

According to an aspect of the present invention, when the casing has a hemispherical shape, the nozzles may be provided on a partial region of the side wall of the casing, and the nozzles may be provided around the side wall of the casing.

According to yet another aspect of the present invention, the inner shell sidewall and the inner shell top may be an integrally formed structure or a separate structure. When the side wall of the inner shell and the top of the inner shell are in a split structure, the top of the inner shell and the top of the inner shell can be embedded in the side wall of the inner shell; alternatively, the top of the inner shell may be fixed to the upper end surface of the side wall of the inner shell, which is outside the side wall of the inner shell. When the side wall of the inner shell and the top of the inner shell are in a split structure, the top of the inner shell can be fixed on the side wall of the inner shell through a screw, a clamping structure, glue and the like.

According to another aspect of the present invention, the lower end surface of the sidewall of the inner shell may be provided with a certain thickness of flexible material, so as to improve the sealing property between the inner shell and the bottom plate of the outer shell when the inner shell is buckled in the outer shell.

According to yet another aspect of the invention, the inner shell may be square or hemispherical, conforming to the outer shell. When the inner shell is hemispherical, the sidewall and the top of the inner shell may be a hemispherical peripheral portion and a hemispherical top portion, respectively.

According to yet another aspect of the invention, a plurality of inner shells may be disposed within the outer shell. For example, two inner shells may be provided within the outer shell.

According to a further aspect of the present invention, the top of the outer casing comprises a top plate of the outer casing, so that the side walls of the outer casing, the top plate of the outer casing and the bottom plate of the outer casing form a closed space, that is, the first accommodating space can be a closed accommodating space, and the inner casing is always located in the first accommodating space, that is, the inner casing is located in the first accommodating space regardless of whether the inner casing is in the closed state or the closed state.

According to yet another aspect of the invention, the housing top of the housing comprises an opening formed directly by the housing side walls of the housing, i.e. the housing does not comprise any solid part of the ceiling, the housing top being only a virtual part in space. The inner housing top of the inner housing may protrude out of the opening of the outer housing when the inner housing is rotated.

Optionally, the housing top includes a portion of the housing top plate and a portion of the opening.

According to an aspect of the present invention, the inner housing may be rotatably disposed within the outer housing by the engagement of the rotation shaft and the shaft hole.

Optionally, a first shaft hole is disposed on the outer shell side wall of the outer shell, a second shaft hole is disposed on the inner shell side wall or the inner shell top of the inner shell, and the first rotating shaft penetrates through the first shaft hole and the second shaft hole.

Optionally, a first shaft hole is formed in the outer shell side wall of the outer shell, a second rotating shaft is arranged on the inner shell side wall or the top of the inner shell, and the second rotating shaft penetrates through the first shaft hole.

Optionally, a third rotating shaft is disposed on the outer shell sidewall of the outer shell, a second shaft hole is disposed on the inner shell sidewall or the top of the inner shell, and the third rotating shaft is disposed through the second shaft hole.

According to an aspect of the present invention, the opening and closing type fire extinguishing apparatus further comprises a first stopper defining a maximum rotation angle of the inner housing, thereby preventing the bottom opening of the inner housing from protruding out of the top opening of the outer housing when the inner housing is rotated.

Optionally, the first position-limiting portion includes a position-limiting groove disposed on an outer side surface of the inner casing side wall and a position-limiting protrusion disposed on an inner side surface of the outer casing side wall.

Optionally, the first limiting portion includes a limiting protrusion disposed on an outer side surface of the inner casing side wall and a limiting groove disposed on an inner side surface of the outer casing side wall.

Optionally, the first position-limiting portion includes an inner case side wall of the inner case and an outer case side wall of the outer case located on the opposite direction side of the rotation axis of the inner case. By providing an appropriate distance between the inner shell sidewall of the inner shell and the outer shell sidewall of the outer shell on the side of the opposite direction of the rotation axis, when the inner shell rotates around the rotation axis thereof, the bottom end of one of the inner shell sidewalls of the inner shell can abut against the inner side surface of one of the outer shell sidewalls of the outer shell on the side of the opposite direction of the rotation axis, thereby restricting the inner shell from continuing to rotate around the rotation axis.

Alternatively, the outer shell sidewall of the outer shell on the side opposite to the rotating shaft is arranged to be inclined, so that the bottom end of the inner shell sidewall abuts against the outer shell sidewall when the inner shell rotates by a small angle, and the first limiting portion can more quickly play a role in limiting the inner shell to continue rotating.

According to an aspect of the present invention, the open-type fire extinguishing apparatus further includes a second stopper portion for restricting abnormal opening of the inner case in the closed state.

Optionally, the second limiting portion includes a limiting convex point disposed on an outer side surface of the inner shell side wall and a limiting concave point disposed on an inner side surface of the outer shell side wall.

Optionally, the second limiting portion includes a limiting concave point disposed on an outer side surface of the inner shell side wall and a limiting convex point disposed on an inner side surface of the outer shell side wall.

Optionally, the second limiting portion includes an elastic material disposed on an outer side surface of the inner casing side wall and/or an inner side surface of the outer casing side wall, and the inner casing is restricted from being opened abnormally in the closed state by a friction force between the elastic material and the outer casing side wall and/or the inner casing side wall.

Optionally, the second limiting portion comprises an adhesive material disposed at the bottom end of the sidewall of the inner casing and/or the bottom plate. For example, a suitable double-sided adhesive tape is provided between the lower end surface of the side wall of the inner case and the bottom plate, and the inner case is restricted from being abnormally opened in the closed state by the adhesive force of the double-sided adhesive tape.

According to one aspect of the invention, the activation device may be an electro-thermal device or a thermal wire device. The activation device connects the fire suppressant to the environment outside the housing via a cable or heat sensitive wire.

Alternatively, a through hole may be provided in an outer case side wall of the outer case, and a groove may be provided in a lower end surface of the inner case side wall of the inner case to facilitate the passage of a cable or a heat-sensitive wire.

According to an aspect of the invention, the third accommodation space is filled with a fire extinguishing agent.

According to still another aspect of the present invention, the open-close type fire extinguishing apparatus further comprises a first holding means for holding the fire extinguishing agent, the first holding means not covering most of the surface of the fire extinguishing agent, thereby allowing the fire extinguishing agent to undergo redox reaction and generate fire extinguishing gas that can reach the nozzle with the shortest distance, thereby reducing the waiting time for the fire extinguishing gas to start to be sprayed.

Alternatively, the first retaining means may be secured to the base plate of the housing.

Alternatively, the first retaining means may be secured to the inner housing sidewall of the inner housing.

Alternatively, the first retaining means may be fixed to the inner housing top of the inner housing.

Alternatively, the first retaining means may be secured to both the inner housing sidewall and the inner housing top of the inner housing.

Optionally, the first retaining means comprises a spring, the fire suppressant being disposed in a central bore of the spring. Preferably, the spring comprises a metal spring.

Optionally, the first retaining device comprises a mesh enclosure, the fire suppressant being disposed within the mesh enclosure. Preferably, the mesh enclosure comprises a metal mesh enclosure.

Optionally, the first retaining means comprises one or more posts secured to the top of the inner shell. When the first retaining means comprises a post, the fire suppressant may be inserted on the post. When the first retaining means comprises a plurality of posts, the fire suppressant is trapped between the plurality of posts.

According to an aspect of the invention, the third accommodating space is filled with a coolant.

According to a further aspect of the invention, the open-close fire extinguishing device further comprises a second holding device for holding the coolant, which second holding device does not cover most of the surface of the coolant, so that the fire extinguishing gas can reach the nozzle with the shortest distance, thereby reducing the waiting time for the fire extinguishing gas to start to be sprayed.

Alternatively, the second retaining means may be secured to the base plate of the housing.

Alternatively, the second retaining means may be secured to the inner housing sidewall of the inner housing.

Alternatively, the second retaining means may be fixed to the inner housing top of the inner housing.

Alternatively, the second retaining means may be secured to both the inner shell sidewall and the inner shell top of the inner shell.

Optionally, the second retaining means comprises a spring, the second retaining means is sleeved outside the first retaining means, and the coolant is disposed between the first retaining means and the second retaining means. Preferably, the spring comprises a metal spring.

Optionally, the second retaining means comprises a screen secured to the base plate, the coolant being disposed within the screen, the screen surrounding the first retaining means. Preferably, the mesh enclosure comprises a metal mesh enclosure.

Alternatively, the outer diameter of the second retaining means and the inner diameter of the inner shell have the same dimensions, so that the second retaining means can be fixed in the inner shell without additional fixing parts by directly snapping the second retaining means into the inner shell.

According to yet another aspect of the invention, the first retaining means and the second retaining means are of one-piece construction.

According to yet another aspect of the invention, the coolant comprises a relatively small volume of cooling particles, around which or between which thermally conductive material is arranged. By providing heat conducting material in the cooling particles, the heat of the fire suppressing gas can be quickly transferred to the coolant, thereby more advantageously reducing the temperature of the fire suppressing gas at the nozzle. Preferably, the thermally conductive material comprises a metal spring, a metal wire or a graphite material, or the like.

According to a further aspect of the invention, the thermally conductive material comprises first and/or second retaining means.

According to yet another aspect of the invention, the thermally conductive material is disposed between the first retaining means and the second retaining means.

According to yet another aspect of the invention, the first retaining means, the second retaining means and the thermally conductive material are of unitary construction.

According to another aspect of the invention, the open-close type fire extinguishing device is also provided with a fixing device for fixing the open-close type fire extinguishing device in a working environment where fire fighting is needed.

Alternatively, the fastening device comprises an extension member arranged on the bottom plate and/or the side wall of the housing, for example by means of screws or pins extending through the extension member, whereby the fire fighting unit can be fastened in the working environment for fire fighting.

Optionally, the fixing device includes an adhesive member disposed on the bottom plate and/or the side wall of the housing, and the opening and closing type fire extinguishing device can be adhered to a working environment where fire fighting is performed through the adhesive member.

According to still another aspect of the present invention, there is provided an open-close type fire extinguishing apparatus including an outer casing, an inner casing, a fire extinguishing agent, a coolant, and an actuating device, wherein:

the housing comprises a housing side wall and a housing top, wherein the housing side wall and the housing top form a first accommodation space;

a nozzle is arranged on the side wall of the shell;

the inner shell comprises an inner shell side wall, an inner shell top and a bottom opening, wherein the inner shell side wall, the inner shell top and the bottom opening form a second accommodating space, and except the bottom opening, other surfaces of the second accommodating space form a closed structure;

the inner shell is rotatably arranged in the outer shell, and when the inner shell does not rotate, the lower end surface of the side wall of the outer shell and the lower end surface of the side wall of the inner shell are in the same plane; when the inner shell rotates, the lower end face of the side wall of the inner shell is separated from the plane of the lower end face of the side wall of the outer shell;

the fire extinguishing agent and the coolant are disposed in the second accommodating space, and the starting device is connected with the fire extinguishing agent.

According to this aspect of the invention, the open-close fire extinguishing apparatus may not include the base plate, but instead, may perform the function of the base plate using the relevant components in the work environment where fire is to be extinguished. The function of the base plate of the retractable fire-extinguishing device can be realized, for example, directly by a cabinet plate of a wall or a cabinet.

According to the open-close type fire extinguishing device, the inner shell and the outer shell are mutually closed in the standby state, so that the problem that the fire extinguishing agent is affected with damp and fails can be effectively solved, and the inner shell and the outer shell are mutually opened in the working state, so that fire extinguishing gas can be conveniently sprayed out immediately, and the danger of secondary fire can be avoided.

According to the open-close type fire extinguishing device, the distance from the fire extinguisher to the nozzle is short, and the waiting time for the fire extinguishing gas to start to be sprayed can be shortened; in addition, the heat conduction material is arranged in the coolant, so that the speed of transferring the temperature of the fire extinguishing gas to the coolant is increased, the temperature of the nozzle of the fire extinguishing device can be effectively reduced, and the fire extinguishing effect is enhanced.

Drawings

The following drawings are exemplary embodiments according to the invention, and it is to be understood that the various parts of the drawings are not to scale, wherein:

fig. 1 is a schematic view showing a structure of an opening and closing type fire extinguishing apparatus according to an embodiment of the present invention in an opened state;

FIG. 2 is a schematic view showing the structure of an open-close type fire extinguishing apparatus according to an embodiment of the present invention in a closed state;

FIG. 3 illustrates a schematic view of the structure of the outer and inner shells of an open-close type fire extinguishing apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic view showing the construction of a housing floor and associated components according to one embodiment of the present invention, wherein first and second retaining devices are secured to the housing floor;

fig. 5 shows a schematic view of the structure of an inner shell and its associated components according to another embodiment of the invention, wherein the first and second retaining means are fixed in the inner shell.

Detailed Description

In the following description of the present invention, it is to be understood that the terms "side wall", "bottom plate", "top", "upper end face", "lower end face", "upper" and "lower", etc., indicate positional relationships based on the manner in which the fire extinguishing apparatus is placed as shown in fig. 1 or 2, and that these are merely for convenience of describing the present invention, and do not indicate or imply that the components referred to must have a specific orientation, and therefore, are not to be construed as limiting the present invention.

Furthermore, in the following description of the present invention, the terms "first", "second", and "third", etc. 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. Accordingly, technical features including "first", "second", and "third", etc., may explicitly or implicitly include one or more corresponding features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

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

As shown in fig. 1 to 5, an open-close type fire extinguishing apparatus 100 according to the present invention includes an outer case 1, an inner case 2, a fire extinguishing agent 3, a coolant 4, and an actuating device (not shown).

The housing 1 comprises housing side walls 11, a housing top 12 and a bottom plate 13, wherein the housing side walls 11, the housing top 12 and the bottom plate 13 form a first receiving space.

According to an aspect of the present invention, the housing sidewall 11 and the bottom plate 13 may be formed as an integral structure or may be formed as a separate structure. When the housing sidewall 11 and the bottom plate 13 are separate structures, the bottom plate 13 may be embedded in the housing sidewall 11; alternatively, the bottom plate 13 may be fixed to the lower end surface of the housing 1, and in this case, it is located outside the housing sidewall 11; the base plate 13 may be secured to the housing side wall 11 by means such as screws, snap-fit structures, glue, etc.

According to one aspect of the invention, the housing 1 may be square or hemispherical. When the housing 1 has a hemispherical shape, the housing sidewall 11 and the housing top 12 may have a hemispherical peripheral portion and a hemispherical top portion, respectively. The square shape includes not only a square shape but also a rectangular parallelepiped shape. The so-called hemispherical shape includes not only a hemispherical shape having a volume of exactly half but also a partial spherical shape having a volume of less than half and a partial spherical shape having a volume of more than half.

The housing sidewall 11 is provided with a spout 15. The fire extinguishing gas generated by the redox reaction of the fire extinguishing agent can be sprayed to the external environment of the fire extinguishing device 100 through the nozzle 15, thereby performing the fire extinguishing function. The shape of the spout 15 may be configured as a rectangle, a circle, a semicircle, a hexagon, etc.

According to an aspect of the present invention, when the housing 1 includes a plurality of housing sidewalls 11, the nozzle opening may be provided on only one of the housing sidewalls 11, or the nozzle openings 15 may be provided on a plurality of housing sidewalls 11.

According to an aspect of the present invention, when the housing 1 has a hemispherical shape, the nozzles 15 may be disposed on a partial area of the housing sidewall 11, and the nozzles 15 may be disposed on all the peripheries of the housing sidewall 11.

The inner shell 2 comprises an inner shell side wall 21, an inner shell top 22 and a bottom opening 23, wherein the inner shell side wall 21, the inner shell top 22 and the bottom opening 23 form a second accommodating space, and the other surfaces of the second accommodating space except the bottom opening 23 form a closed structure. The closed structure does not mean that the inner shell side wall 21 and the inner shell top 22 may not contain any through holes, but rather means that the second accommodating space can maintain a certain tightness when the open-close type fire extinguishing apparatus is in a use state, so that the fire extinguishing agent is prevented from being affected by moisture and losing efficacy within a reasonable period of time or being obviously reduced. For example, the inner housing side wall 21 and/or the inner housing top 22 may be through holes through which cables or heat sensitive wires may pass.

According to an aspect of the present invention, the inner shell sidewall 21 and the inner shell top 22 may be an integral structure or a separate structure. When the inner shell side wall 21 and the inner shell top 22 are in a split structure, the inner shell top 22 can be embedded in the inner shell side wall 21; the inner shell top 22 may also be secured to the upper end surface of the inner shell side wall 21, which is now outside the inner shell side wall 21. When the inner shell sidewall 21 and the inner shell top 22 are in a split structure, the inner shell top 22 can be fixed on the inner shell sidewall 21 by means of screws, snap-fit structures, adhesives, and the like.

According to an aspect of the present invention, the lower end surface of the inner shell sidewall 21 may be provided with a certain thickness of flexible material, so as to improve the sealing property between the inner shell 2 and the bottom plate 13 of the outer shell 1 when the inner shell 2 is buckled in the outer shell 1.

According to an aspect of the present invention, the inner case 2 may be square or hemispherical in shape, in conformity with the outer case 1. When the inner shell 2 has a hemispherical shape, the inner shell sidewall 21 and the inner shell top 22 may have a hemispherical peripheral portion and a hemispherical top portion, respectively. Similarly, the square shape includes not only a square shape but also a rectangular parallelepiped shape. The so-called hemispherical shape includes not only a hemispherical shape having a volume of exactly half but also a partial spherical shape having a volume of less than half and a partial spherical shape having a volume of more than half.

The inner housing 2 is rotatably disposed in the outer housing 1, and when the inner housing 2 is not rotated, the bottom plate 13 of the outer housing 1 closes the bottom opening 23 of the inner housing 2, so that the bottom plate 13 of the outer housing 1, the inner housing sidewall 21 of the inner housing 2, and the inner housing top 22 of the inner housing 2 form a third accommodating space. As shown in fig. 2, when the inner housing 2 is locked in the outer housing 1 to the maximum, it means that the inner housing 2 is not rotated. According to one aspect of the invention, said closing comprises not only a complete sealing between said bottom opening 23 and said bottom plate 13, but also a partial sealing between said bottom opening 23 and said bottom plate 13. The sealing according to the present invention is not intended to mean that there is no space or gap between the bottom opening 23 and the bottom 13, but rather that the third receiving space is capable of maintaining a certain tightness when the inner shell 2 is not rotated, thereby avoiding that the extinguishing agent is exposed to moisture and fails or is significantly less effective within a reasonable period of time.

When the inner housing 2 is rotated, the bottom plate 13 of the outer housing 1 opens the bottom opening 23 of the inner housing 2. For example, when the inner shell 2 is rotated by the fire extinguishing gas generated by the oxidation-reduction reaction of the fire extinguishing agent 3, the bottom opening 23 is opened, so that the fire extinguishing gas can be flushed out of the inner shell 2 and finally ejected from the ejection openings 15 of the outer shell 1.

According to an aspect of the present invention, a plurality of inner housings 2 may be disposed inside the outer housing 1. For example, two inner shells 2 may be provided within the outer shell 1.

The fire extinguishing agent 3 and the cooling agent 4 are arranged in the third receiving space, and the activation device (not shown) is connected to the fire extinguishing agent 3.

According to an aspect of the present invention, the top 12 of the outer casing 1 includes a top plate (not shown), so that the side wall 11, the top plate and the bottom plate 13 of the outer casing form a closed space, i.e. the first receiving space can be a closed receiving space, and the inner casing 2 is always located in the first receiving space, i.e. the inner casing 2 is located in the first receiving space regardless of whether the inner casing 2 is in the closed state or the closed state.

According to one aspect of the invention, as shown in fig. 3, the housing top 12 of the housing 1 comprises an opening formed directly by the housing side wall 11 of the housing, i.e. the housing does not comprise a ceiling of any solid part, the housing top 12 being only a virtual part in space. When the inner housing is rotated, as shown in fig. 1, the inner housing top 22 of the inner housing 2 may protrude out of the opening of the outer housing 1.

Optionally, the housing top 12 includes a portion of the housing top plate and a portion of the opening.

According to an aspect of the present invention, the inner case 2 may be rotatably disposed within the outer case 1 by fitting of a rotation shaft and a shaft hole.

Alternatively, a first shaft hole 16 is formed in the outer casing side wall 11 of the outer casing 1, a second shaft hole 26 is formed in the inner casing side wall 21 or the inner casing top 22 of the inner casing 2, and a first rotation shaft (not shown) penetrates through the first shaft hole 16 and the second shaft hole 26.

Alternatively, a first shaft hole 16 is formed in the outer casing side wall 11 of the outer casing, and a second rotating shaft (not shown) is formed in the inner casing side wall 21 or the inner casing top 22 of the inner casing 2, and the second rotating shaft is inserted into the first shaft hole 16.

Alternatively, a third rotating shaft (not shown) is disposed on the outer casing side wall 11 of the outer casing 1, a second shaft hole 26 is disposed on the inner casing side wall 21 or the inner casing top 22 of the inner casing 2, and the third rotating shaft is inserted into the second shaft hole 26.

According to an aspect of the present invention, the fire extinguishing unit 100 further includes a first stopper (not shown) for limiting a maximum rotation angle of the inner case, thereby preventing the bottom opening 23 of the inner case 2 from protruding out of the top opening of the outer case 1 when the inner case is rotated.

Alternatively, the first position-limiting portion includes a position-limiting groove (not shown) provided on the outer side surface of the inner housing side wall 21 and a position-limiting protrusion (not shown) provided on the inner side surface of the outer housing side wall 11.

Alternatively, the first position-limiting portion includes a position-limiting protrusion (not shown) provided on the outer side surface of the inner housing sidewall 21 and a position-limiting groove (not shown) provided on the inner side surface of the outer housing sidewall 11.

Alternatively, the first stopper portion includes an inner case side wall 21 of the inner case 2 and an outer case side wall 11 of the outer case 1 on the opposite direction side of the rotational axis (not shown) of the inner case. By providing an appropriate distance between the inner shell sidewall 21 of the inner shell 2 and the outer shell sidewall 11 of the outer shell 1 on the opposite direction side of the rotation axis, when the inner shell 2 rotates around the rotation axis thereof, the bottom end of one of the inner shell sidewalls 21 of the inner shell 2 can abut against the inner side surface of one of the outer shell sidewalls 11 of the outer shell on the opposite direction side of the rotation axis, thereby restricting the inner shell 2 from continuing to rotate around the rotation axis.

Alternatively, the outer shell sidewall 11 of the outer shell 1 on the side opposite to the rotation axis is disposed to be inclined, so that the bottom end of the inner shell sidewall 21 can abut against the outer shell sidewall 11 when the inner shell 2 rotates by a small angle, and the first stopper can function to restrict the inner shell from continuing to rotate as soon as possible. The arrangement to be inclined means that the edge of the housing side wall 11 at the housing top 12 is closer to the plane of the rotation axis than the edge at the bottom 13, so that the contour area of the housing top 12 is generally smaller than the contour area of the bottom 13. As shown in fig. 1 to 3, the casing side wall 11 provided with the spout 15 is provided in an inclined shape.

According to an aspect of the present invention, the open-type fire extinguishing apparatus 100 further includes a second stopper portion for limiting abnormal opening of the inner case in the closed state. The non-opening may for example comprise opening the inner shell when the fire fighting device is not in a fire fighting state, opening the inner shell when no fire fighting demand is present, opening the inner shell in an undesired situation, may also comprise opening the inner shell in an undesired situation when the inner shell is subjected to a small force, etc.

Alternatively, the second position-limiting part includes a position-limiting convex point 29 disposed on the outer side surface of the inner housing sidewall 21 and a position-limiting concave point (not shown) disposed on the inner side surface of the outer housing sidewall 11.

Alternatively, the second position-limiting part includes a position-limiting concave point (not shown) disposed on the outer side surface of the inner housing sidewall 21 and a position-limiting convex point (not shown) disposed on the inner side surface of the outer housing sidewall 11.

Optionally, the second limiting portion comprises an elastic material (not shown) disposed on the outer side surface of the inner shell side wall 21 and/or on the inner side surface of the outer shell side wall 11, and the inner shell is limited from being opened abnormally in the closed state by the friction force between the elastic material and the outer shell side wall 11 and/or the inner shell side wall 21.

Optionally, the second limiting portion comprises an adhesive material disposed at the bottom end of the inner shell sidewall 21 and/or the bottom plate 13. For example, a suitable double-sided adhesive tape is provided between the bottom end of the inner housing side wall 21 and the bottom plate 13, and the inner housing is restricted from being abnormally opened in the closed state by the adhesive force of the double-sided adhesive tape.

According to one aspect of the invention, the activation device may be an electro-thermal device or a thermal wire device. The activation device connects the fire suppressant to the environment outside the housing via a cable or heat sensitive wire. When the starting device is an electric heating device, the starting device is connected with an external sensing device through a cable. The sensing device includes, but is not limited to, a temperature controller, a manual controller, or a remote electronic control device. When a fire disaster happens, the temperature controller senses high temperature, or field personnel find the fire, or a remote manager receives a fire alarm, and transmits a control signal or an electric signal to the starting device through the electric wire by the sensing device, so that the fire extinguishing agent is electrically heated until the fire extinguishing agent generates oxidation-reduction reaction and generates fire extinguishing gas. When the starting device is a heat-sensitive wire device, the heat-sensitive wire is ignited after a fire disaster occurs, the heat-sensitive wire burns and conducts flame to the fire extinguishing agent until the fire extinguishing agent is ignited to generate fire extinguishing gas.

Alternatively, as shown in fig. 3, a through hole 18 may be provided on the outer case side wall 11 of the outer case 1, and a groove 28 may be provided at the bottom end of the inner case side wall 21 of the inner case 2 to facilitate the passing of a cable or a heat-sensitive wire.

According to one aspect of the invention, said third containing space is filled with fire extinguishing agent 3.

According to a further aspect of the invention, the open-close fire extinguishing apparatus further comprises a first holding means 51 for holding the fire extinguishing agent 3, the first holding means 51 not covering most of the surface of the fire extinguishing agent, thereby enabling the fire extinguishing gas generated by the redox reaction of the fire extinguishing agent to reach the nozzle 15 with the shortest distance, thereby reducing the waiting time for the fire extinguishing gas to start to be ejected. The corresponding position here means the area of the bottom plate 13 of the outer shell that can be enclosed by the bottom opening 23 in the closed state of the inner shell. By a large surface area of the agent is meant herein a surface area that is substantially free of agent or only a small surface area that is shielded from agent.

Alternatively, the first retaining means 51 may be fixed to the base plate 13 of the housing 1.

Alternatively, the first retaining means 51 may be fixed to the inner housing side wall 21 of the inner housing 2.

Alternatively, the first retaining means 51 may be fixed to the inner housing top 22 of the inner housing 2.

Alternatively, the first retaining means 51 may be fixed to both the inner shell side wall 21 and the inner shell top 22 of the inner shell 2.

Alternatively, the first holding means 51 comprises a spring, the extinguishing agent 3 being arranged in a central hole of the spring. Preferably, the spring comprises a metal spring.

Alternatively, the first holding means 51 comprises a mesh (not shown) in which the extinguishing agent 3 is arranged. Preferably, the mesh enclosure comprises a metal mesh enclosure.

Optionally, the first retaining means 51 comprises one or more posts (not shown) fixed to the inner shell top 22. When the first holding means 51 comprises a pillar, the extinguishing agent 3 can be inserted on the pillar. When the first holding means 51 comprises a plurality of uprights, the extinguishing agent 3 is trapped between the uprights.

According to a further aspect of the invention, the open-close fire extinguishing apparatus 100 further comprises a second holding means 52 for holding the coolant 4, the second holding means 52 not covering most of the surface of the coolant, thereby enabling the extinguishing gas to reach the nozzle at the shortest distance, thereby reducing the waiting time for the extinguishing gas to start to be sprayed.

Alternatively, the second holding means 52 may be fixed to the bottom plate 13 of the housing 1.

Alternatively, the second retaining means 52 may be fixed to the inner housing side wall 21 of the inner housing 2.

Alternatively, the second holding means 52 may be fixed to the inner shell top 22 of the inner shell 2.

Alternatively, the second retaining means 52 may be fixed to both the inner shell side wall 21 and the inner shell top 22 of the inner shell 2.

Alternatively, the second retaining means 52 comprises a spring, the second retaining means 52 being sleeved outside the first retaining means 51, the coolant being arranged between the first retaining means 51 and the second retaining means 52. Preferably, the spring comprises a metal spring.

Alternatively, the second holding means 52 includes a mesh enclosure (not shown) fixed to the bottom plate 13, in which the coolant 4 is disposed, the mesh enclosure surrounding the first holding means 51. Preferably, the mesh enclosure comprises a metal mesh enclosure.

Alternatively, the outer diameter of the second holding means 52 and the inner diameter of the inner housing 2 have the same size, so that the second holding means 52 can be fixed in the inner housing without additional fixing parts by directly engaging the second holding means 52 in the inner housing 2.

According to a further aspect of the invention, said first retaining means 51 and second retaining means 52 are of one-piece construction.

According to one aspect of the invention, the coolant 4 comprises a relatively small volume of cooling particles around which or between which a heat conducting material (not shown) is arranged. By providing heat conducting material in the cooling particles, the heat of the extinguishing gas can be quickly transferred to the coolant, thereby more advantageously reducing the temperature of the extinguishing gas at the nozzle. Preferably, the thermally conductive material comprises a metal spring, a metal wire or a graphite material, or the like.

According to one aspect of the invention, the thermally conductive material comprises a first retaining means 51 and a second retaining means 52.

According to one aspect of the invention, the thermally conductive material is disposed between the first retaining means 51 and the second retaining means 52.

According to one aspect of the present invention, the first retaining means 51, the second retaining means 52 and the thermally conductive material are of an integral structure.

According to an aspect of the present invention, the fire extinguishing unit 100 is further provided with a fixing device (not shown) for fixing it in a working environment where fire fighting is required.

Alternatively, the fastening device may comprise an extension (not shown) provided on the bottom plate 13 and/or the housing side wall 11, for example by means of screws or pins extending through the extension, so that the fire fighting unit 100 can be fastened in the working environment for fighting fire.

Alternatively, the fixing device includes an adhesive member (not shown) provided on the bottom plate 13 and/or the housing side wall 11, by which the opening and closing type fire extinguishing apparatus 100 can be adhered to a working environment where fire extinguishing is performed.

According to still another aspect of the present invention, there is provided an opening and closing type fire extinguishing apparatus including an outer case 1, an inner case 2, a fire extinguishing agent 3, a coolant 4, and an actuating device (not shown), wherein:

the housing 1 comprises a housing side wall 11 and a housing top 12, wherein the housing side wall 11 and the housing top 12 form a first accommodation space;

a nozzle 15 is arranged on the shell side wall 11 of the shell 1;

the inner shell 2 comprises an inner shell side wall 21, an inner shell top 22 and a bottom opening 23, wherein the inner shell side wall 21, the inner shell top 22 and the bottom opening 23 form a second accommodating space, and the other surfaces of the second accommodating space except the bottom opening 23 form a closed structure;

the inner shell 2 is rotatably arranged in the outer shell 1, and when the inner shell 2 is not rotated, the lower end surface of the side wall 11 of the outer shell 1 and the lower end surface of the side wall 21 of the inner shell 2 are in the same plane; when the inner shell 2 rotates, the lower end surface of the side wall 21 of the inner shell 2 is separated from the plane where the lower end surface of the side wall 1 of the outer shell 1 is located;

the fire extinguishing agent 3 and the cooling agent 4 are arranged in the second receiving space, and the activation means (not shown) is connected to the fire extinguishing agent.

According to this aspect of the invention, the fire extinguishing unit of the open-close type may not comprise the base plate 13, instead the function of the base plate 13 is performed by the relevant components in the working environment where fire is to be extinguished. The function of the base plate 13 of the fire extinguishing device can be realized directly with a cabinet plate of a wall or a cabinet, for example.

According to the open-close type fire extinguishing device, the inner shell and the outer shell are mutually closed in the standby state, so that the problem that the fire extinguishing agent is affected with damp and fails can be effectively solved, and the inner shell and the outer shell are mutually opened in the working state, so that fire extinguishing gas can be conveniently sprayed out immediately, and the danger of secondary fire can be avoided.

According to the open-close type fire extinguishing device, the distance from the fire extinguisher to the nozzle is short, and the waiting time for the fire extinguishing gas to start to be sprayed can be shortened; in addition, the heat conduction material is arranged in the coolant, so that the speed of transferring the temperature of the fire extinguishing gas to the coolant is increased, the temperature of the nozzle of the fire extinguishing device can be effectively reduced, and the fire extinguishing effect is enhanced.

Although the present invention has been described in connection with the above specific embodiments, it should be understood that the foregoing description does not limit the scope of the present invention to the above specific embodiments, but rather the foregoing description is intended to indicate that the scope of the present invention as defined by the claims encompasses the above specific embodiments and their equivalents.

Claims (10)

1. The utility model provides an open-close type extinguishing device, includes shell, inner shell, fire extinguishing agent, coolant and starting drive, its characterized in that:

the housing comprises a housing side wall, a housing top and a bottom plate, wherein the housing side wall, the housing top and the bottom plate form a first accommodating space;

a nozzle is arranged on the side wall of the shell;

the inner shell comprises an inner shell side wall, an inner shell top and a bottom opening, wherein the inner shell side wall, the inner shell top and the bottom opening form a second accommodating space, and except the bottom opening, other surfaces of the second accommodating space form a closed structure;

the inner shell is rotatably arranged in the outer shell, when the inner shell does not rotate, the bottom plate of the outer shell closes the bottom opening of the inner shell, wherein a third accommodating space is formed by the bottom plate of the outer shell, the side wall of the inner shell and the top of the inner shell, and when the inner shell rotates, the bottom plate of the outer shell opens the bottom opening of the inner shell;

the fire extinguishing agent and the coolant are disposed in the third accommodating space, and the starting device is connected with the fire extinguishing agent.

2. The fire suppression apparatus of claim 1, wherein the housing top of the housing comprises an opening formed directly by the housing side wall of the housing.

3. The fire extinguishing unit of claim 1, further comprising a first stopper that limits a maximum rotation angle of the inner case.

4. The fire extinguishing unit of claim 1, further comprising a second stopper for limiting abnormal opening of the inner case in the closed state.

5. An open-close fire extinguishing apparatus according to any one of claims 1 to 4, further comprising a first holding means for holding the fire extinguishing agent, the first holding means not covering most of the surface of the fire extinguishing agent, the first holding means being fixed to the bottom plate of the housing.

6. The opening and closing type fire extinguishing apparatus according to any one of claims 1 to 4, further comprising a first holding means for holding the fire extinguishing agent, the first holding means not covering most of the surface of the fire extinguishing agent, the first holding means being fixed to the inner casing side wall of the inner casing and/or the inner casing top of the inner casing.

7. An open-close fire extinguishing apparatus as claimed in any one of claims 1 to 4, further comprising a second holding means for holding the coolant, the second holding means not covering most of the surface of the coolant, the second holding means being fixed to the floor of the housing.

8. An open-close fire extinguishing apparatus according to any one of claims 1 to 4, further comprising a second holding means for holding the coolant, the second holding means not covering most of the surface of the coolant, the second holding means being fixed to the inner casing side wall of the inner casing and/or the inner casing top of the inner casing.

9. An open-close fire extinguishing apparatus as claimed in any one of claims 1 to 4, wherein the coolant comprises a relatively small volume of cooled particles, and a thermally conductive material is provided around or between the cooled particles.

10. The utility model provides an open-close type extinguishing device, includes shell, inner shell, fire extinguishing agent, coolant and starting drive, its characterized in that:

the housing comprises a housing side wall and a housing top, wherein the housing side wall and the housing top form a first accommodation space;

a nozzle is arranged on the side wall of the shell;

the inner shell comprises an inner shell side wall, an inner shell top and a bottom opening, wherein the inner shell side wall, the inner shell top and the bottom opening form a second accommodating space, and except the bottom opening, other surfaces of the second accommodating space form a closed structure;

the inner shell is rotatably arranged in the outer shell, and when the inner shell does not rotate, the lower end surface of the outer shell side wall of the outer shell and the lower end surface of the inner shell side wall of the inner shell are in the same plane; when the inner shell rotates, the lower end surface of the side wall of the inner shell is separated from the plane of the lower end surface of the side wall of the outer shell;

the fire extinguishing agent and the coolant are disposed in the second accommodating space, and the starting device is connected with the fire extinguishing agent.

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