CN214074790U

CN214074790U - Automatic isolation suffocation fire extinguishing alarm device for electrical equipment

Info

Publication number: CN214074790U
Application number: CN202022977306.6U
Authority: CN
Inventors: 赵振华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-08-31
Anticipated expiration: 2030-12-11

Abstract

The application relates to an automatic isolation suffocation fire extinguishing alarm device for electrical equipment, which comprises a box body, a temperature sensing control device, a vent, a movable sealing device and an alarm; the temperature sensing control device comprises a mounting seat, a sliding locking piece and a temperature sensing glass ball, the movable sealing device comprises a mounting frame, a movable baffle plate, a movable lock catch, an elastic piece and a convex buckle, and a microswitch is arranged in the alarm; the movable lock catch, the microswitch and the sliding lock piece are linked. By the arrangement, the interior of the box body is continuously kept in the isolated suffocation state, so that a lasting suffocation fire extinguishing effect is formed; chemical fire extinguishing powder is not used in the fire extinguishing process, so that energy-saving fire extinguishing is realized, the fire extinguishing cost is reduced, and the manufacturing cost of the product is reduced; simple structure is frivolous, and the installation is convenient, need not carelessly to maintain, only needs to change the temperature sensing glass ball after putting out a fire and can resume the function, has further promoted the durability.

Description

Automatic isolation suffocation fire extinguishing alarm device for electrical equipment

Technical Field

The application relates to the technical field of electrical fire extinguishing, in particular to an automatic isolation suffocation fire extinguishing alarm device for electrical equipment.

Background

The internal fire caused by various faults of the electrical equipment is not discovered and treated in time, and the electrical fire problem is caused in serious cases. The shell structure of traditional electrical equipment is mostly the semi-closed metal box structure of taking the heat dissipation vent, mainly considers that the inside all kinds of electrical parts of guarantee can work with normal temperature stability. Although the traditional automatic gas fire extinguishing device or system can play a role in one-time quick fire extinguishing, the fire-retardant inert gas in the box body which is closed after fire extinguishing cannot be retained, and air flows in from the ventilation opening to provide the condition of oxygen necessary for combustion, so that the fire extinguishing state cannot be maintained for a long time; because the fire of the electrical equipment is a live fire, electric sparks or electric arcs generated continuously in the electrical equipment can cause multiple ignition of electrical appliances and circuits, and the fire extinguishing success rate is extremely unstable. Moreover, the gas fire extinguishing requires chemical fire extinguishing powder for fire extinguishing, and energy-saving fire extinguishing cannot be realized, so the technical defects of high fire extinguishing cost, high device manufacturing cost, large product volume, heavy weight, troublesome installation and the need of regular inspection and maintenance are formed.

Therefore, how to solve the problems that the existing electric fire extinguishing technology cannot maintain a lasting fire extinguishing state and has high fire extinguishing cost is a key technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

To overcome the problems in the related art at least to some extent, an object of the present application is to provide an automatic isolating asphyxia fire extinguishing alarm device for electrical equipment, which can solve the problems that the existing electrical fire extinguishing technology cannot maintain a lasting fire extinguishing state and the fire extinguishing cost is high. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the application are described in detail in the following.

The application provides an automatic isolation suffocation fire extinguishing alarm device for electrical equipment, which comprises a box body for accommodating the electrical equipment, a temperature sensing control device arranged in the box body, a vent arranged on the side wall of the box body, a movable sealing device for sealing the vent and an alarm arranged outside the box body, wherein the temperature sensing control device is arranged in the box body; the temperature sensing control device comprises an installation seat provided with a sliding chute, a sliding lock piece arranged in the sliding chute in a sliding way and a temperature sensing glass ball embedded in the sliding chute, wherein the temperature sensing glass ball is arranged at the first end of the sliding chute and is abutted against the sliding lock piece; the movable lock catch, the microswitch and the sliding lock piece are linked, when the temperature sensing glass ball is positioned at the first end of the sliding chute and is abutted against the sliding lock piece, the movable lock catch is abutted against the bulge buckle and limits the movable baffle plate to slide downwards so as to open the ventilation opening, and the elastic piece accumulates potential energy; when the temperature sensing glass ball is heated and burst, the elastic piece releases potential energy and drives the movable lock catch to move until the movable lock catch and the protruding buckle are staggered and the limit of the movable baffle plate is cancelled, the movable baffle plate slides downwards and seals the vent, the microswitch triggers and the alarm gives an alarm.

Preferably, the movable sealing device and the alarm are linked with the temperature sensing control device through brake cables, one end of a cable core of each brake cable is connected with the sliding locking piece, the other end of the cable core of each brake cable is connected with the movable lock catch or the microswitch, one end of a sleeve of each brake cable is connected with the mounting seat, and the other end of the sleeve of each brake cable is connected with the mounting frame or the alarm.

Preferably, the mounting seat comprises a base fixed with the box body and an upper shell fixed with the base, and the chute penetrates through the upper shell; the sliding lock piece comprises a limiting part and a sliding part, wherein the limiting part is positioned between the base and the upper shell, the sliding part is positioned in the sliding groove, and the width of the limiting part is greater than that of the sliding part.

Preferably, one side of the sliding lock piece away from the sliding groove is provided with an anti-skid buckle; the sliding lock piece and the first end of the sliding groove are oppositely provided with notches for embedding the temperature sensing glass balls.

Preferably, the both sides of installation frame are provided with the slide bar vertically, the both sides of activity baffler are provided with slidable ground cover and establish the sliding sleeve outside the slide bar.

Preferably, the sliding sleeve is arranged on the lower portion of the movable baffle, a return spring is sleeved outside the sliding rod, one end of the return spring abuts against the upper end of the sliding rod, and the other end of the return spring abuts against the upper end of the sliding sleeve.

Preferably, be provided with the crossbeam on the installation frame, movable lock catch with the crossbeam passes through guide structure sliding connection, guide structure is including the guide slot of level setting and the sliding setting is in the guide rail in the guide slot, one of guide slot with the guide rail sets up on the crossbeam, the other sets up on the movable lock catch.

Preferably, the upper end of the movable lock catch is provided with an arc-shaped elastic sheet which is bent towards the movable baffle plate and is used for abutting against the protrusion buckle.

Preferably, the top of the box body is provided with an automatic gas fire extinguishing device.

Preferably, one side of the lower part of the box body is provided with a movable pressure relief opening, the movable pressure relief opening comprises a pressure relief opening and a pressure relief plate used for sealing the pressure relief opening, and the pressure relief plate is tightly abutted to the outer side of the pressure relief opening through an elastic structure.

The technical scheme provided by the application can comprise the following beneficial effects:

when the temperature sensing glass ball is used, the sliding lock piece slides to the second end of the sliding chute, so that the temperature sensing glass ball can be embedded in the first end of the sliding chute to be tightly propped against between the sliding lock piece and the mounting seat, and meanwhile, the movable lock catch is positioned at the first position and propped against the protrusion buckle to limit the movable baffle plate to slide downwards; when the temperature in the box body is abnormal, the temperature sensing glass ball bursts and falls off, the sliding locking piece slides to the first end of the sliding chute under the action of the elastic piece, meanwhile, the movable lock catch slides from the first position to the second position, the positions of the movable lock catch and the raised buckle are staggered left and right, so that the movable lock catches cancel the limit to the movable baffle plate in the vertical direction, the movable baffle plate slides downwards under the action of the self gravity until the ventilation opening is closed, thereby realizing the complete sealing in the box body, at the moment, the interior of the box body and the outside air form a complete isolation state, because the combustion process of the internal combustion object consumes only internal oxygen and generates flame-retardant inert gas, the internal oxygen condition is necessary due to internal missing combustion and the flame-retardant inert gas is formed by spontaneous combustion, so that the combustion object can not be continuously extinguished, and can be continuously kept in an isolation suffocation state, and a durable suffocation fire extinguishing effect is formed. Meanwhile, a control rod of a microswitch in the alarm is driven to reset, so that the electric connection circuit of the alarm is communicated, and the alarm works to play a role in reminding fire. After fire extinguishment, the temperature sensing glass ball is replaced again, and infinite times of recycling can be realized after repeated installation.

By the arrangement, the interior of the box body is continuously kept in the isolated suffocation state, so that a lasting suffocation fire extinguishing effect is formed; chemical fire extinguishing powder is not used in the fire extinguishing process, so that energy-saving fire extinguishing is realized, the fire extinguishing cost is reduced, and the manufacturing cost of the product is reduced; simple structure is frivolous, and the installation is convenient, need not carelessly to maintain, only needs to change the temperature sensing glass ball after putting out a fire and can resume the function, has further promoted the durability.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of the present automatic isolating asphyxia fire suppression alarm apparatus for electrical equipment shown in accordance with some exemplary embodiments;

FIG. 2 is a block diagram illustrating a temperature sensitive control in accordance with certain exemplary embodiments;

FIG. 3 is an exploded view of a temperature sensitive control according to some exemplary embodiments;

FIG. 4 is an exploded view of a movable seal shown in accordance with some exemplary embodiments;

FIG. 5 is a front view of a mounting frame shown in accordance with some exemplary embodiments;

FIG. 6 is a block diagram illustrating a movable pressure relief vent, according to some exemplary embodiments.

In the figure: 1. a temperature sensing control device; 2. a brake cable; 3. a movable sealing device; 4. an alarm; 5. an automatic gas fire extinguishing device; 6. a movable pressure relief opening; 10. a box body; 20. a vent; 101. a base; 102. an upper shell; 103. a sliding lock; 104. a temperature-sensitive glass ball; 105. anti-skid buckling; 106. a limiting part; 301. a mounting frame; 302. a movable baffle plate; 303. a movable lock catch; 304. an arc-shaped elastic sheet; 305. an elastic member; 306. a guide rail; 307. a spring buckle; 308. a convex buckle; 309. a slide bar; 310. a sliding sleeve; 311. a return spring; 61. a pressure relief plate; 62. and (3) an elastic structure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus or methods consistent with aspects of the present application.

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1 to 6, the present embodiment provides an automatic isolation suffocation fire extinguishing alarm device for electrical equipment, which comprises a box body 10, a temperature sensing control device 1, a vent 20, a movable sealing device 3 and an alarm 4, wherein the box body 10 is used for accommodating the electrical equipment, and in particular, the box body 10 can be a sealed chamber; the ventilation opening 20 is arranged on the side wall of the box body 10 to ensure the ventilation inside and outside the box body 10; the temperature sensing control device 1 is arranged inside the box body 10 and can react according to the temperature in the box body 10 so as to realize a series of control operations; the movable sealing device 3 is arranged at the position of the ventilation opening 20 and is used for sealing the ventilation opening 20 so as to form a closed space inside the box body 10; the alarm 4 is used for alarming and prompting fire. When the temperature sensing control device 1 senses abnormal high temperature, the movable sealing device 3 and the alarm 4 are respectively controlled, the vent 20 is sealed by the movable sealing device 3, the interior of the box body 10 is sealed to form a suffocation effect, and the alarm 4 gives an alarm to prompt a fire.

The temperature sensing control device 1 comprises a mounting seat, a sliding lock 103 and a temperature sensing glass ball 104, wherein the mounting seat is fixed on the box body 10, and a chute is arranged on one side of the mounting seat far away from the box body 10 and is used for accommodating the sliding lock 103 and the temperature sensing glass ball 104; the sliding lock 103 is slidably disposed in the sliding slot, and the sliding lock 103 can slide to a first end of the sliding slot or a second end of the sliding slot; the temperature sensing glass ball 104 is disposed at a first end of the sliding chute and is abutted between the sliding lock 103 and the sliding chute, wherein the temperature sensing glass ball 104 is a temperature sensing element, and when the sensed temperature reaches a set temperature value, the temperature sensing glass ball 104 will burst. When the temperature in the box 10 is normal, temperature sensing glass ball 104 supports between slip latch fitting 103 and spout, and the while slips latch fitting 103 and is located the second end of spout, and has towards the gliding trend of the first end of spout, and when high temperature was unusual in the box 10, temperature sensing glass ball 104 burst, and slip latch fitting 103 slides to the first end of spout, and then realizes the temperature sensing displacement of slip latch fitting 103 to in convenient for through slip latch fitting 103 control activity sealing device 3 and alarm 4.

However, the form of the temperature sensing glass ball 104 in the temperature sensing control device 1 can also realize the same sensing control effect by other temperature sensing or smoke sensing device technologies, for example: low temperature hot melt metal or object, temperature sensing probe controller, smoke sensing controller, etc.

The movable sealing device 3 comprises a mounting frame 301, a movable baffle plate 302, a movable lock catch 303, an elastic piece 305 and a raised buckle 308, wherein the mounting frame 301 is fixed on the box body 10 and arranged around the ventilation opening 20 so as to close the ventilation opening 20; the movable baffle plate 302 is arranged on the mounting frame 301 and can slide up and down along the vertical direction to open or close the ventilation opening 20; the movable lock catch 303 is arranged on the mounting frame 301 and used for limiting the movable blocking plate 302 from sliding vertically downwards, the movable lock catch 303 is arranged on the mounting frame 301 in a sliding manner along the horizontal direction, when the movable lock catch 303 slides to a first position, the movable lock catch 303 limits the movable blocking plate 302 from sliding vertically downwards, and when the movable lock catch 303 slides to a second position, the movable lock catch 303 does not limit the movable blocking plate 302 from sliding vertically downwards, so that the movable blocking plate 302 can slide downwards under the action of gravity until the vent 20 is closed; the elastic piece 305 is connected between the movable lock catch 303 and the mounting frame 301, and is used for driving the movable lock catch 303 to horizontally slide from a first position to a second position, so as to realize unlocking limitation; the protruding buckle 308 is arranged on one side of the movable blocking plate 302, which faces the movable lock catch 303, and the movable blocking plate 302 abuts against the protruding buckle 308, so that the movable blocking plate 302 is limited.

Alarm 4 installs in the outside of box 10, connects through peripheral hardware circuit or automatic rechargeable battery facility electricity, is equipped with micro-gap switch in alarm 4 and connects one of them side electricity and allies oneself with the circuit in alarm 4, is responsible for the electricity and communicates alarm 4 and report to the police or break off alarm 4 circuit, realizes the effect of reporting to the police.

It should be noted that, the alarm 4 may also adopt a dangerous signal remote transmission technology, and the alarm effect generated is the same as the protection scope.

Here, the slide latch 103, the movable latch 303 and the microswitch are linked, and the position of the movable latch 303 and the microswitch is driven by the sliding position of the slide latch 103, so that the temperature sensing control device 1 realizes the linkage control of the movable sealing device 3 and the alarm 4.

It should be noted that, when the sliding lock 103 is located at the second end of the sliding chute, the movable lock 303 is located at the first position, the elastic member 305 accumulates potential energy, and the movable lock 303 limits the movable blocking plate 302; when the sliding lock 103 is at the first end of the sliding chute, the movable lock 303 is at the second position, the elastic member 305 releases the potential energy, and the movable lock 303 cancels the limit of the movable blocking plate 302. The elastic member 305 can drive the movable latch 303 to move and also drive the sliding latch 103 to move.

When the temperature-sensing glass ball is used, the sliding lock piece 103 slides to the second end of the sliding chute, so that the temperature-sensing glass ball 104 can be embedded in the first end of the sliding chute to be tightly abutted between the sliding lock piece 103 and the mounting seat, and meanwhile, the movable lock catch 303 is positioned at the first position and abutted against the convex catch 308 to limit the downward sliding of the movable baffle plate 302; when the interior of the box body 10 is abnormal at high temperature, the temperature-sensitive glass ball 104 bursts and falls, the sliding lock piece 103 slides to the first end of the sliding chute under the action of the elastic piece 305, the movable lock catch 303 slides to the second position from the first position, and the positions of the movable lock catch 303 and the raised lock catch 308 are staggered left and right, so that the movable lock catch 303 cancels the limit of the movable baffle plate 302 in the vertical direction, slides downwards under the action of the self gravity of the movable baffle plate 302 until the vent 20 is closed, thereby realizing the complete sealing in the box body 10, at the moment, the interior of the box body 10 and the outside air form a complete isolation state, because the combustion process of the internal combustion object consumes only the internal oxygen and generates flame-retardant inert gas, the internal combustion object can not be continued and self-extinguished due to the fact that the oxygen condition and the flame-retardant inert gas are formed by spontaneous combustion are lost in the interior, and can be kept in the isolation suffocation state continuously, forming a durable suffocation fire-extinguishing effect. Meanwhile, a control rod of a microswitch in the alarm 4 is driven to reset, so that the electric connection circuit of the alarm 4 is communicated, and the alarm 4 works to remind of fire. After fire extinguishment, the temperature sensing glass ball 104 is replaced again, and infinite times of recycling can be realized after repeated installation.

With the arrangement, the interior of the box body 10 is continuously kept in the isolated suffocation state, so that a lasting suffocation fire-extinguishing effect is formed; chemical fire extinguishing powder is not used in the fire extinguishing process, so that energy-saving fire extinguishing is realized, the fire extinguishing cost is reduced, and the manufacturing cost of the product is reduced; simple structure is frivolous, and the installation is convenient, need not to maintain carelessly, only needs to change temperature sensing glass ball 104 after putting out a fire and can resume the function, has further promoted the durability.

In this embodiment, the movable sealing device 3 and the alarm 4 are linked with the temperature sensing control device 1 through the brake cable 2, so that the brake cable 2 has a simple structure and is convenient for realizing synchronous linkage. The brake cable 2 comprises a sleeve and a cable core located in the sleeve, specifically, one end of the cable core of the brake cable 2 is connected with the sliding locking piece 103, the other end of the cable core is connected with the movable lock catch 303 or the microswitch, one end of the sleeve of the brake cable 2 is connected with the mounting seat, and the other end of the sleeve of the brake cable 2 is connected with the mounting frame 301 or the alarm 4.

Here, the core of the brake cable 2 is connected to the slide lock 103, and the sleeve of the brake cable 2 is connected to the mounting seat at a position close to the first end of the sliding groove, so that the core is connected to the slide lock 103 through the first end of the sliding groove.

In some preferred embodiments, as shown in fig. 2 to 3, the mounting base includes a base 101 and an upper shell 102, the base 101 and the box 10 are fixed together, the upper shell 102 and the base 101 are fixed together, and the sliding groove is a through hole penetrating through the upper shell 102. Specifically, the sliding lock 103 includes a limiting portion 106 and a sliding portion, the sliding portion is located in the sliding groove, the limiting portion 106 is located between the base 101 and the upper shell 102, and the width of the limiting portion 106 is greater than the width of the sliding groove and the sliding portion, so that the sliding portion is limited between the base 101 and the upper shell 102, and the sliding lock 103 can be prevented from coming off from the sliding groove, and the sliding stability is ensured.

In order to facilitate sliding the slide lock 103, an anti-slip snap 105 is provided on a side of the slide lock 103 remote from the slide groove.

Moreover, the first ends of the sliding lock 103 and the sliding groove are provided with notches, and the shape of the notches is consistent with that of the end of the temperature sensing glass ball 104, so that the end of the temperature sensing glass ball 104 can be embedded, the installation stability of the temperature sensing glass ball 104 is improved, and the accuracy of fire alarm is ensured.

Since the temperature of the top of the casing 10 rises first, the temperature sensing controller 1 is attached to the top of the electrical equipment casing 10. In addition, the brake cable 2 is composed of a rotary sleeve and a steel wire core, the rotary sleeve is fixedly clamped between the upper shell 102 and the base 101, and the steel wire core is arranged on the sliding locking piece 103 respectively to play a role in dragging control.

In some preferred schemes, as shown in fig. 4 to 5, two sliding rods 309 are vertically disposed on the side of the mounting frame 301, correspondingly, two sliding sleeves 310 are vertically disposed on the left and right sides of the sliding resistance plate 302, the sliding sleeves 310 are matched with the sliding rods 309 and slidably sleeved outside the sliding rods 309, and the sliding resistance plate 302 and the mounting frame 301 slide relatively by the sliding of the sliding rods 309 and the sliding sleeves 310, stably and reliably.

The sliding sleeve 310 is arranged at the lower part of the movable resistance plate 302, the sliding rod 309 is sleeved with a return spring 311, one end of the return spring 311 abuts against the upper end of the sliding rod 309, the other end of the return spring abuts against the upper end of the sliding sleeve 310, specifically, the upper end of the return spring 311 is connected to the upper end of the sliding rod 309, after the movable resistance plate 302 moves upwards, the return spring 311 is automatically rebounded downwards to reset under the extrusion, and the timeliness of the movable resistance plate 302 in closing is improved.

In order to improve the installation stability of the movable lock catch 303, a cross beam is arranged on the installation frame 301, the cross beam can be located on the middle upper portion of the installation frame 301, the movable lock catch 303 is in sliding connection with the cross beam through a guide structure, the guide structure comprises a guide groove horizontally arranged and a guide rail 306 slidably arranged in the guide groove, one of the guide groove and the guide rail 306 is arranged on the cross beam, and the other one of the guide groove and the guide rail 306 is arranged on the movable lock catch 303, so that the sliding reliability of the movable lock catch 303 is improved through the design of the guide structure.

Specifically, an i-shaped guide rail 306 is fixedly arranged on the cross beam of the mounting frame 301, the movable lock catch 303 is provided with a guide groove and is slidably mounted on the slide groove, and the guide rail 306 and the guide groove are designed to have a 45% inward-inclined convex shape and a 45% outward-inclined concave shape, so that the movable lock catch 303 cannot fall off after being mounted.

The movable sealing devices 3 are arranged in two, and are respectively arranged on the ventilation openings 20 on the left side and the right side of the box body 10, the plane of the installation frame 301 is mostly designed in a hollow mode, air circulation is facilitated, the side portion of the installation frame 301 is provided with a small round hole for fixedly installing a sleeve of the brake cable 2, and a cable core in the brake cable 2 penetrates through the small round hole to enter the interior of the installation frame 301 and is connected to one side of the movable lock catch 303. One side of the cross beam far away from the small round hole is provided with a spring fastener 307, the movable lock catch 303 is connected to the cross beam through an elastic piece 305, one end of the elastic piece 305 is connected with the movable lock catch 303, the other end of the elastic piece 305 is connected with the spring fastener 307, a left-right sliding dragging control effect is formed, and the elastic piece 305 is provided with a spring.

The fixed arc shell fragment 304 that is equipped with on the activity hasp 303, the arc shell fragment 304 is crooked towards the direction of activity resistance board 302 for detain 308 with the arch and offset, when activity resistance board 302 upwards slides, arc shell fragment 304 atress is straight form, so that the arch is detained 308 and is passed through, detain 308 when the arch and pass through behind the arc shell fragment 304, arc shell fragment 304 reconversion, and support tightly in the below that the 308 was detained to the arch, like this, conveniently move about resistance board 302 upwards slides and realize spacingly.

In some preferred schemes, the alarm 4 is installed in the outside of the box 10, and is electrically connected through an external circuit or an automatic rechargeable battery facility, a microswitch is arranged in the alarm 4 and is connected with one side of the electric connection line in the alarm 4, and is responsible for electrically connecting the alarm 4 to give an alarm or disconnecting the circuit of the alarm 4, a wire core at one side of the brake cable 2 passes through the box 10 and is connected with a control rod on the microswitch arranged in the alarm 4, and a wire core at the other side of the brake cable 2 is connected with a sliding lock piece 103 on the temperature sensing control device 1, so that the alarm effect of the temperature sensing control device 1 in a wire connection mode is realized.

In some preferred schemes, automatic gas extinguishing device 5 is installed at the top in box 10, and when electrical equipment box 10 product size specification is too big, whole inner chamber also increases naturally, when considering to realize lasting fire extinguishing through adopting the isolation stifling principle, because of the too big best time of putting out a fire that influences of whole inner chamber, install one set of automatic gas extinguishing device 5 additional this moment and accelerate fire-retardant inert gas's packing, realize putting out a fire more fast.

Of course, the temperature sensing design value of the automatic gas fire extinguishing device 5 is larger than the temperature setting value of the temperature sensing glass ball 104 in the temperature sensing control device 1, so that the released fire extinguishing powder can be effectively stored in a suffocating manner.

Here, the automatic gas fire extinguishing apparatus 5 includes all conventional gas fire extinguishing apparatuses, such as: automatic hot-gas glue-melting fire extinguishing, heptafluoropropane fire extinguishing, carbon dioxide fire extinguishing and dry powder fire extinguishing devices. Of course, the automatic gas fire extinguisher controlled by the linkage with the temperature sensing controller 1 is within the scope of the present invention.

In some preferred schemes, a movable pressure relief opening 6 is installed at one side below the box body 10, the movable pressure relief opening 6 includes a pressure relief opening formed on the box body 10 and a pressure relief plate 61 for closing the pressure relief opening, and the pressure relief plate 61 abuts against the outside of the pressure relief opening through an elastic structure 62. Specifically, one side of the elastic structure 62 is fixedly installed on the pressure relief plate 61, the other side of the elastic structure is fixedly installed on the outer wall of the pressure relief opening on the box body 10, the whole body is similar to a hinge on a door or window, the plane design of the pressure relief plate 61 is larger than the pressure relief opening, and the pressure relief plate 61 is prevented from inclining inwards under the elastic action of the elastic structure 62. Like this, activity pressure release mouth 6 acts on and probably has danger when the internal pressure increases when stifling puts out a fire, and the pressure release mouth then burden is let out partial unnecessary gas pressure this moment, has further ensured safety.

Here, the elastic structure 62 may be provided as a spring, a torsion spring, or a resilient plate.

The following will specifically describe the operation steps of the automatic isolating fire-extinguishing alarm device for electrical equipment with reference to the above embodiments.

When the temperature-sensing glass ball is used, the sliding locking piece 103 on the temperature-sensing temperature control device 1 is broken by pointing to one side with a hand, a distance clamping groove for placing the temperature-sensing glass ball 104 is just formed above the sliding locking piece 103 and the upper shell 102, three steel wire cores installed below the sliding locking piece 103 are pulled at the same time, the movable lock catch 303 is pulled to slide in the same direction by the steel wire cores in the two sets of movable sealing devices 3 respectively connected through the brake cable 2, meanwhile, the elastic piece 305 generates tension, and the temperature-sensing glass ball 104 is installed at the moment. In the space clamping groove formed above the sliding lock 103 and the upper shell 102, the movable lock catch 303 which is pulled by the elastic piece 305 is limited to reset; then the movable baffle 302 on the movable sealing device 3 is moved upwards, when the raised button 308 slides over the arc-shaped elastic sheet 304 fixedly installed on the movable lock catch 303, the arc-shaped elastic sheet 304 is extruded to be straightened, when the movable baffle 302 reaches the top end, the arc-shaped elastic sheet 304 is restored to the original state, the engagement action is formed between the raised button 308 and the arc-shaped elastic sheet 304, so that the movable baffle 302 cannot be reset downwards, in addition, when the movable baffle 302 moves towards the top, the reset spring 311 is simultaneously squeezed and pressed, so that the movable baffle 302 generates a downward thrust force, because the engagement action force formed between the raised button 308 and the arc-shaped elastic sheet 304 limits the downward reset of the movable baffle 302 again, at the moment, the external air can flow into the box 1001 to realize heat dissipation. Another steel wire sinle silk of slip latch fitting 103 also receives the pulling force simultaneously, realizes the control lever of the micro-gap switch in the control alarm 4, makes alarm 4 electricity connect the disconnection of circuit, and alarm 4 is out of work this moment.

When the electrical equipment in the box body 10 is on fire due to fault reasons such as short circuit and the like, the internal temperature rises to the temperature set value of the temperature sensing glass ball 104 in the temperature sensing control device 1 quickly, the temperature sensing glass ball 104 bursts, the restriction is relieved at the moment, the pulling force potential energy accumulated by the elastic piece 305 in the movable sealing device 3 pulls the movable lock catch 303, the steel wire core and the sliding lock piece 103 back to the original position simultaneously, meanwhile, the protruding lock catch 308 and the arc-shaped elastic piece 304 are transversely staggered and lose the occlusion force, the restriction is relieved, the movable resistance plate 302 is reset downwards by the pushing force originally stored by the reset spring 311, at the moment, the movable sealing device 3 realizes a closed state and seals the ventilation openings 20 at two sides, the box body 10 is changed into a full-sealed state from the original semi-closed state, and the complete isolation state of the internal air and the external air is realized. Because the combustion process of the internal combustion object consumes only the internal oxygen and the flame-retardant inert gas generated in the combustion process, the internal combustion object can not be continuously extinguished any more due to the fact that the internal combustion object lacks the necessary oxygen condition for combustion and forms the flame-retardant inert gas through spontaneous combustion, and the internal combustion object can be continuously kept in an isolation suffocation state, and a durable suffocation fire-extinguishing effect is formed. Simultaneously another steel wire sinle silk of slip latch fitting 103 also loses the pulling force, realizes that the micro-gap switch's in the control alarm 4 control lever resets, makes 4 electricity connecting line intercommunications of alarm, and 4 work of alarm play the warning condition of a fire effect this moment. After fire extinguishment, the temperature sensing glass ball 104 is replaced again, and the use steps are repeated for one time, so that infinite times of recycling can be realized.

Therefore, automatic and lasting fire extinguishing can be realized, and the problem of re-ignition caused by continuous electric arc of live fire can be prevented; the energy-saving fire extinguishing can be realized, and the zero-energy-consumption fire extinguishing is realized by applying the isolation suffocation fire extinguishing principle; the full-automatic fire extinguishing can be realized by adopting a mechanical principle without electric drive, and the energy-saving fire extinguishing is further realized; the fire extinguishing device can be used repeatedly, and the function can be recovered only by replacing one temperature sensing glass ball and the resetting device after fire extinguishing; the device is lighter, thinner, more durable and less expensive.

It should be noted that the terms "first," "second," and the like, as used herein, are not intended to limit the specific order, but merely to distinguish one element or function from another. The stated horizontal, vertical, up, down, left and right are indicated when the automatic isolating suffocation fire-extinguishing alarm device for electrical equipment is in a natural placing state.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the application comprise basic schemes of the schemes, are independent of each other and are not restricted to each other, but can be combined with each other under the condition of no conflict, so that multiple effects are achieved together.

While embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. An automatic isolation suffocation fire extinguishing alarm device for electrical equipment is characterized by comprising a box body (10) for containing the electrical equipment, a temperature sensing control device (1) arranged in the box body (10), a vent hole (20) arranged on the side wall of the box body (10), a movable sealing device (3) for sealing the vent hole (20) and an alarm (4) arranged outside the box body (10); the temperature sensing control device (1) comprises a mounting seat provided with a chute, a sliding lock piece (103) arranged in the chute in a sliding way and a temperature sensing glass ball (104) embedded in the chute, the temperature sensing glass ball (104) is arranged at the first end of the sliding chute and is propped against the sliding locking piece (103), the movable sealing device (3) comprises a mounting frame (301), a movable baffle plate (302) which is slidably arranged on the mounting frame (301) and can seal the vent (20), a movable lock catch (303) which is horizontally slidably arranged on the mounting frame (301), an elastic piece (305) for driving the movable lock catch (303) to slide along the horizontal direction, and a raised buckle (308) which is arranged on the movable baffle plate (302) and matched with the movable lock catch (303), wherein a micro switch is arranged in the alarm (4); the movable lock catch (303), the microswitch and the sliding lock piece (103) are linked, when the temperature sensing glass ball (104) is positioned at the first end of the sliding chute and abuts against the sliding lock piece (103), the movable lock catch (303) abuts against the convex buckle (308) and limits the movable baffle plate (302) to slide downwards so as to open the ventilation opening (20), and the elastic piece (305) accumulates potential energy; when the temperature-sensing glass ball (104) is heated and burst, the elastic piece (305) releases potential energy and drives the movable lock catch (303) to move until the movable lock catch (303) and the protruding buckle (308) are staggered and the limit of the movable baffle plate (302) is cancelled, the movable baffle plate (302) slides downwards and seals the vent (20), the microswitch triggers and the alarm (4) gives an alarm.

2. The automatic isolating and suffocation fire extinguishing alarm device for the electrical equipment according to claim 1, wherein the movable sealing device (3) and the alarm (4) are linked with the temperature sensing control device (1) through brake cables (2), one end of a cable core of each brake cable (2) is connected with the sliding locking piece (103), the other end of the cable core is connected with the movable lock catch (303) or the microswitch, one end of a sleeve of each brake cable (2) is connected with the mounting seat, and the other end of the sleeve of each brake cable (2) is connected with the mounting frame (301) or the alarm (4).

3. An automatic isolating asphyxia fire extinguishing alarm device for electric equipment according to claim 1, wherein the mounting seat comprises a base (101) fixed to the box body (10) and an upper shell (102) fixed to the base (101), and the chute penetrates through the upper shell (102); the sliding lock piece (103) comprises a limiting part (106) and a sliding part, wherein the limiting part (106) is located between the base (101) and the upper shell (102), the sliding part is located in the sliding groove, and the width of the limiting part (106) is greater than that of the sliding part.

4. The automatic isolating asphyxia fire extinguishing alarm device for electrical equipment according to claim 1, wherein a side of the sliding lock (103) away from the chute is provided with an anti-slip snap-off (105); the sliding lock piece (103) and the first end of the sliding chute are oppositely provided with notches for embedding the temperature sensing glass ball (104).

5. The automatic isolating and suffocation fire extinguishing alarm device for electrical equipment according to claim 1, wherein sliding rods (309) are vertically arranged on two sides of the mounting frame (301), and sliding sleeves (310) which are slidably sleeved outside the sliding rods (309) are arranged on two sides of the movable baffle plate (302).

6. The automatic isolating asphyxia fire extinguishing alarm device for electrical equipment according to claim 5, wherein the sliding sleeve (310) is arranged at the lower part of the movable baffle (302), the sliding rod (309) is sleeved with a return spring (311), one end of the return spring (311) abuts against the upper end of the sliding rod (309), and the other end abuts against the upper end of the sliding sleeve (310).

7. An automatic isolating asphyxia fire extinguishing alarm device for electrical equipment according to claim 1, wherein a cross beam is disposed on the mounting frame (301), the movable lock catch (303) is slidably connected with the cross beam through a guide structure, the guide structure comprises a horizontally disposed guide groove and a guide rail (306) slidably disposed in the guide groove, one of the guide groove and the guide rail (306) is disposed on the cross beam, and the other one is disposed on the movable lock catch (303).

8. The automatic isolating asphyxia fire extinguishing alarm device for electric equipment according to claim 1, wherein the upper end of the movable lock catch (303) is provided with a curved spring piece (304) bent toward the movable blocking plate (302) and used for abutting against the raised buckle (308).

9. An automatic isolating asphyxia fire extinguishing alarm device for electric equipment according to claim 1, wherein the top of the box body (10) is provided with an automatic gas fire extinguishing device (5).

10. The automatic isolating asphyxia fire extinguishing alarm device for electrical equipment according to claim 1, wherein a movable pressure relief opening (6) is arranged at one side below the box body (10), the movable pressure relief opening (6) comprises a pressure relief opening and a pressure relief plate (61) for closing the pressure relief opening, and the pressure relief plate (61) is abutted against the outer side of the pressure relief opening through an elastic structure (62).