Self-response passive fire extinguishing device

Abstract

The invention relates to the technical field of electrical equipment fireproof devices, in particular to a self-response passive fire extinguishing device which comprises a shell, a fire fighting module, a grating, a lead, an end cover, an air inducing component, a locking component, a triggering component, a replacing component and a dismounting component, a plurality of module grooves are longitudinally formed in the shell, the fire fighting module is arranged in the module grooves, and the grating is arranged in the module grooves. The fire-fighting module is arranged in the shell, the grid is arranged at the upper end of the shell, the leads are arranged on the two sides of the fire-fighting module, the end cover is arranged on the left side of the shell, and a temperature sensing hole is formed in the right side of each module groove. Flame-retardant gas generated by the device can be jetted to the position where a fire source easily occurs along the preset angle of the grating, rapid fire extinguishment is achieved, the multiple fire-fighting modules are arranged in the shell and matched with the trigger component and the replacement component, sequential eruption fire extinguishment can be achieved, and the situation that after-combustion occurs in the electrical cabinet, and serious economic losses and safety problems are caused is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of fire protection devices for electrical equipment, in particular to a self-responsive passive fire extinguishing device. Background Art

[0002] With the popularization of electrical equipment, fires caused by the use of electrical equipment also occur from time to time. Therefore, some electrical equipment will be equipped with passive automatic fire extinguishing devices. Passive automatic fire extinguishing devices are devices that use temperature changes or flame detection to automatically start the fire extinguishing device. When the passive automatic fire extinguishing device in the electrical cabinet encounters flames, electric arcs or abnormally high temperatures exceeding about 170°C, it can automatically sense and quickly release highly insulating nano-microcapsule particles and flame-retardant gases to block the conditions for flame combustion in the electrical equipment space, thereby achieving effective control and active protection of fire arcs inside the equipment. The existing passive automatic fire extinguishing device can only achieve one-time eruption fire extinguishing when sensing temperature rise. After active fire extinguishing of electrical cabinets, cable trays or cable trough boxes, when the flame-retardant gas in the enclosed space dissipates, the electrical equipment may reignite. In addition, the eruption hole of the existing fire extinguishing device is fixed, and the position of the eruption hole cannot be adjusted after installation. When the fire extinguishing module ejects the fire extinguishing medium, it can only achieve fire extinguishing by filling the space inside the electrical equipment with the erupted flame-retardant gas and blocking the flame combustion conditions in the space. It is impossible to achieve accurate and rapid fire extinguishing from the source of the fire.

[0003] In the prior art, for example, there is a passive automatic fire extinguishing module for electrical equipment with patent number CN116407792A that can be triggered multiple times. A plurality of independent fire extinguishing chambers are set in the passive automatic fire extinguishing module, and thermistors with different temperature sensing ranges are set in each fire extinguishing chamber. The fire extinguishing agent can be triggered multiple times through the thermistor to perform intelligent fire extinguishing, thereby realizing that the passive automatic fire extinguishing module can be triggered multiple times to extinguish a fire.

[0004] The prior art solves the problem that the passive automatic fire extinguishing module cannot trigger fire extinguishing multiple times. By setting thermistors with sensing temperatures of 160°C, 200°C, 300°C, and 400°C in the fire extinguishing chamber, the passive automatic fire extinguishing module can be made to erupt again when the temperature reaches the next critical point after the equipment has reignited. However, the fire extinguishing eruption hole of this device is fixed, and the spraying direction of the flame retardant material cannot be adjusted after installation, and the sprayed flame retardant material cannot be directed directly at the fire source to achieve rapid fire extinguishing. In addition, when the passive fire extinguishing device is installed in equipment with small enclosed spaces and densely arranged wires such as electrical cabinets and cable trough boxes, the wire joints inside are densely wired, and fires often occur at the wire joints. If the fire source is not extinguished in time after it appears, it will continue to burn and heat up to the next fire extinguishing point before the fire extinguishing device is started to extinguish it. This can easily spread the fire source to other lines, causing more serious economic losses and safety problems.

[0005] Therefore, a self-responsive passive fire extinguishing device is proposed. Summary of the invention

[0006] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0007] The purpose of the present invention is to provide a self-responsive passive fire extinguishing device. In view of the problem that the passive automatic fire extinguishing module in the prior art cannot achieve multiple spraying at the same temperature, cannot adjust the spraying direction of the flame retardant material after being fixed, and achieves rapid fire extinguishing, the present invention is proposed.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A self-responsive passive fire extinguishing device comprises a shell, a fire module, a grille, a lead, an end cover, an air induction component, a locking component, a trigger component, a replacement component and a disassembly component. A plurality of module slots are longitudinally opened in the shell, the fire module is arranged in the module slot, the grille is arranged at the upper end of the shell, the lead is arranged on both sides of the fire module, the end cover is arranged on the left side of the shell, a temperature sensing hole is arranged on the right side of each module slot, the temperature sensing hole cooperates with the lead, the air induction component is arranged on both sides of the grille, and is used to adjust the deflection angle when the grille is opened, the locking component is arranged on the right side of the end cover, and after the end cover is fitted with the shell, it cooperates with the air induction component to lock the end cover and the grille, the trigger component is arranged on the right side of the fire module, and when the lead is ignited, it cooperates with the locking component to open the grille and close the temperature sensing hole, the replacement component is arranged on the left and right sides of the fire module, and after the lead is ignited, it cooperates with the trigger component to open the temperature sensing hole, and the disassembly component is arranged in the end cover, and is used to cooperate with the locking component to unlock the end cover.

[0010] Preferably, the air induced component includes a connecting rack, a connecting gear, an air induced spring, an air induced rack and an air induced gear. A connecting groove is opened in the shell, and the connecting rack is slidably connected in the connecting groove. There are multiple grilles, and a connecting gear is arranged at the right end of each grille, and each connecting gear is meshed with the connecting rack. An air induced support platform is arranged at the right end of the end cover, and the air induced rack is slidably connected to the air induced support platform. The air induced springs are arranged at both ends of the air induced rack, and the end of the air induced spring away from the air induced rack is connected to the air induced support platform. The air induced gear is arranged at the left end of the grille, and the air induced gear is meshed with the air induced rack.

[0011] Preferably, the locking component includes an insertion rod, a fixing groove, a lifting chamfer, a lifting rod, a lifting spring, a locking rod and a locking groove. An insertion groove is provided at the bottom of the shell, a lifting groove is provided at the lower end of the connecting groove, the lifting groove is connected to the insertion groove, the insertion rod is provided at the right end of the end cover, the insertion rod is slidably connected to the insertion groove, the fixing groove is provided at the upper end of the insertion rod, the lifting rod is slidably connected in the lifting groove, the lifting chamfer is provided at the lower left end of the lifting rod, the lifting chamfer cooperates with the fixing groove, the lifting spring is provided at the upper end of the lifting rod, the locking rod is provided at the upper end of the lifting spring, the locking groove is provided at the lower end of the connecting rod, and the upper end of the locking rod cooperates with the locking groove.

[0012] Preferably, the trigger component includes an extrusion spring, an extrusion block, a turntable, a clamping block, a clamping spring, a trigger chamfer, a trigger block, a trigger baffle, a trigger spring and a trigger rod. An extrusion groove is provided at the right end of the fire module, and the extrusion block is slidably connected in the extrusion groove. Both ends of the extrusion spring are respectively connected to the right end of the extrusion block and the extrusion groove. A rotating groove is provided at the right end of the module groove. The turntable is rotatably connected in the rotating groove. A clamping groove begins to be provided in the turntable. The clamping block is slidably connected in the clamping groove. The left end of the clamping block cooperates with the extrusion block. Both ends of the clamping spring They are respectively abutted against the right end of the clamping block and the inner wall of the turntable, and wiring holes are provided on the turntable and the clamping block. The wiring holes have the same diameter as the temperature sensing hole. A plurality of trigger grooves are axially opened in the turntable, and a trigger block is provided in each of the trigger grooves. The trigger baffle is arranged on the side of the trigger block, and the trigger chamfer is arranged at one end of the trigger block close to the clamping block, and the trigger chamfer cooperates with the clamping block. The two ends of the trigger spring are respectively abutted against one end of the trigger baffle away from the clamping block and the inner wall of the turntable, and the trigger rod is arranged at the front end of the locking rod, and the trigger block cooperates with the trigger rod.

[0013] Preferably, the right end of the shell is rotatably connected to a twist handle, and the right end of the twist handle turntable is fixedly connected.

[0014] Preferably, the lead includes a trigger section, a reaction section and an end section, the trigger section is arranged in the extrusion block, the reaction section is arranged at the left end of the trigger section, and the end section is arranged at the left end of the trigger section. The diameters of the trigger section and the reaction section are the same as the diameter of the temperature sensing bath, and the hardness of the trigger section and the end section is higher than that of the reaction section.

[0015] Preferably, a heat-insulating film is attached to the left end of the rotating disk and the pressing block, and the right end of the triggering section is attached to the heat-insulating film.

[0016] Preferably, the replacement component includes a module rod, a rod groove and a replacement spring, the module rod is arranged at the right end of the end cover, the rod groove is opened at the left end of the fire protection module, an end section is arranged in the rod groove, the right end of the module rod abuts against the left end of the end section, the diameter of the module rod is the same as that of the rod groove, the replacement spring is arranged at the right end of the fire protection module, and both ends of the replacement spring abut against the right end of the fire protection module and the module groove respectively.

[0017] Preferably, the disassembly component includes a disassembly rod, a disassembly baffle, a disassembly spring and a disassembly groove, the disassembly groove is opened in the insertion rod, the disassembly rod is slidably connected in the disassembly groove, the disassembly baffle is arranged at the lower end of the disassembly rod, the two ends of the disassembly spring are respectively abutted against the right end of the disassembly baffle and the inner wall of the insertion rod, and the right end of the disassembly rod cooperates with the lifting chamfer.

[0018] Preferably, a pressing handle is provided at the left end of the disassembly rod, and a pull ring is provided at the left end of the end cover.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention arranges a grille on the shell, cooperates with the air induction component on the end cover, so that when the self-responsive passive fire extinguishing device generates flame-retardant gas during operation, it can accurately spray along the preset angle of the grille to the fire source prone location, thereby realizing rapid fire extinguishing. By arranging multiple fire-fighting modules in the shell, in cooperation with the trigger component and the replacement component, when the fire source in the electrical cabinet reaches the set temperature, the fire-fighting modules can spray and extinguish the fire in turn, effectively preventing the electrical cabinet from re-igniting, avoiding serious economic losses and safety problems. By setting the disassembly component, the disassembly is convenient, and the self-responsive passive fire extinguishing device can be reused, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the air induction component of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the locking component of the present invention;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the locking component when the end cover of the present invention is not fitted with the housing;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the trigger component of the present invention;

[0026] Figure 6 It is a schematic diagram of the inner cross-section structure of the turntable of the present invention;

[0027] Figure 7 It is a cross-sectional structural schematic diagram of a replacement component of the present invention;

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the turntable when the trigger block of the present invention is retracted into the turntable;

[0029] Fig. 9 It is a schematic diagram of the cross-sectional structure of the disassembly components of the present invention.

[0030] In the figure: 1, shell; 2, lead wire; 3, fire module; 4, grille; 5, end cover; 6, replacement parts; 7, draft parts; 8, locking parts; 9, disassembly parts; 101, trigger parts; 11, module slot; 12, temperature sensing hole; 71, connecting rack; 72, connecting gear; 73, draft spring; 74, draft rack; 75, draft gear; 13, connecting slot; 51, draft support platform; 81, insertion rod; 82, fixing slot; 83, lifting chamfer; 84, lifting rod; 85, lifting spring; 86, locking rod; 87, locking slot; 14, insertion slot; 15, lifting slot; 1011, extrusion spring; 1012, Extrusion block; 1013, turntable; 10131, clamping groove; 1014, clamping block; 1015, trigger block; 1016, trigger chamfer; 1017, clamping spring; 1018, trigger baffle; 1019, trigger spring; 10101, trigger rod; 31, extrusion groove; 111, rotating groove; 10131, trigger groove; 10132, wiring hole; 16, twist handle; 21, trigger section; 22, reaction section; 23, end section; 61, module plug rod; 62, plug rod groove; 63, replacement spring; 91, disassembly rod; 92, disassembly baffle; 93, disassembly spring; 94, disassembly groove; 911, pressure handle; 52, pull ring. DETAILED DESCRIPTION

[0031] In order to make the technical solutions in the embodiments of the present invention clearly and completely described, and the features and advantages can be more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figures 1 to 8The present invention provides a self-response passive fire extinguishing device, including a shell 1, a fire module 3, a grille 4, a lead 2, an end cover 5, an air induction component 7, a locking component 8, a trigger component 101, a replacement component 6 and a disassembly component 9. A plurality of module slots 11 are longitudinally opened in the shell 1. The fire module 3 is arranged in the module slot 11. A small hole is opened at the left end of the module slot 11, so that after the fire modules 3 on each layer react chemically with the burning lead 2, the fire flows from the small hole on the left to the top layer and flows out along the grille 4. An M3 sticker is arranged on the rear side of the shell 1 to facilitate sticking the shell 1 in the electrical cabinet. The grille 4 is arranged on the upper end of the shell 1, the lead 2 is arranged on both sides of the fire module 3, and the end cover 5 is arranged on the left side of the shell 1. A temperature sensing hole 12 is arranged on the right side of each module slot 11, and the temperature sensing hole 12 cooperates with the lead 2. The cooperation here means that when the temperature sensing hole 12 is directly opposite to the lead 2 and the wiring hole 10132, the trigger section 21 of the lead 2 can be inserted into the temperature sensing hole 12 to realize the perception of the external temperature. The air induction component 7 is arranged on both sides of the grille 4, which is used to adjust the deflection angle of the grille 4 when it is opened. The locking component 8 is arranged on the right side of the end cover 5. After the end cover 5 is fitted with the shell 1, it cooperates with the air induction component 7 to lock the end cover 5 and the grille 4. The trigger component 101 is arranged on the right side of the fire protection module 3. When the lead 2 is ignited, it cooperates with the locking component 8 to open the grille 4 and close the temperature sensing hole 12. The replacement component 6 is arranged on the left and right sides of the fire protection module 3. After the lead 2 is ignited, it cooperates with the trigger component 101 to open the temperature sensing hole 12. The disassembly component 9 is arranged in the end cover 5, which is used to cooperate with the locking component 8 to unlock the end cover 5.

[0034] See also Figures 2 to 6 Specifically, the air induced component 7 includes a connecting rack 71, a connecting gear 72, an air induced spring 73, an air induced rack 74 and an air induced gear 75. A connecting groove 13 is provided in the shell 1, and the connecting rack 71 is slidably connected in the connecting groove 13. A plurality of grilles 4 are provided, and a connecting gear 72 is provided at the right end of each grille 4, and each connecting gear 72 is meshed with the connecting rack 71. An air induced support platform 51 is provided at the right end of the end cover 5, and the air induced rack 74 is slidably connected to the air induced support platform 51. The air induced springs 73 are provided at both ends of the air induced rack 74, and the end of the air induced spring 73 away from the air induced rack 74 is connected to the air induced support platform 51. The air induced gear 75 is provided at the left end of the grille 4, and the air induced gear 75 is meshed with the air induced rack 74.

[0035] See also Figure 3 to Figure 4Specifically, the locking component 8 includes an insertion rod 81, a fixing groove 82, a lifting chamfer 83, a lifting rod 84, a lifting spring 85, a locking rod 86 and a locking groove 87. An insertion groove 14 is provided at the bottom of the housing 1, and a lifting groove 15 is provided at the lower end of the connecting groove 13. The lifting groove 15 is connected to the insertion groove 14. The insertion rod 81 is provided at the right end of the end cover 5. The insertion rod 81 is slidably connected to the insertion groove 14. The fixing groove 82 is provided at the upper end of the insertion rod 81. The lifting rod 84 is slidably connected in the lifting groove 15. The lifting chamfer 83 is provided on the lifting rod 84. At the lower left end, the lifting chamfer 83 cooperates with the fixing groove 82. The cooperation here means that when the end cover 5 is pushed to the right to fit with the shell 1, the insertion rod 81 at the right end of the end cover 5 slides to the right along the insertion groove 14 until the upper right corner of the insertion rod 81 fits with the lifting chamfer 83, and then the insertion rod 81 continues to move to the right. At this time, the insertion rod 81 pushes the lifting rod 84, the lifting spring 85, and the locking rod 86 upward along the lifting chamfer 83, so that the upper end of the locking rod 86 fits with the lower end of the connecting rack 71, and finally the lifting chamfer 83 slides to the insertion rod 81 The upper end of the lifting rod 84 is formed, and after the end cover 5 is fitted with the shell 1, the fixing groove 82 moves to the bottom of the lifting rod 84, and the lifting chamfer 83 is inserted into the fixing groove 82 under the action of the lifting spring 85, so as to lock the end cover 5 in the rightward moving direction. At the same time, the upper end of the locking rod 86 is kept in contact with the lower end of the connecting rack 71, and the lifting spring 85 is in a compressed state. The lifting spring 85 is arranged at the upper end of the lifting rod 84, and the locking rod 86 is arranged at the upper end of the lifting spring 85. The locking groove 87 is provided at the lower end of the connecting rod, and the upper end of the locking rod 86 cooperates with the locking groove 87. The cooperation means that after the end cover 5 is fitted and fixed to the shell 1, the operator presses the grille 4 to keep the upper end of the grille 4 level with the upper end of the shell 1. During this process, the rotation of the grille 4 drives the connecting gear 72 on the right to rotate, and the rotation of the connecting gear 72 drives the connecting rack 71 to slide in the connecting groove 13 until the grille 4 is parallel to the upper end of the shell 1. At this time, the locking groove 87 at the lower end of the connecting rack 71 is directly opposite to the upper end of the locking rod 86. The locking rod 86 is reset and inserted into the locking groove 87 under the action of the lifting spring 85, thereby fixing the grille 4.

[0036] See also Figures 4 to 8Specifically, the trigger component 101 includes an extrusion spring 1011, an extrusion block 1012, a rotating disk 1013, a clamping block 1014, a clamping spring 1017, a trigger chamfer 1016, a trigger block 1015, a trigger baffle 1018, a trigger spring 1019 and a trigger rod 10101. An extrusion groove 31 is provided at the right end of the fire module 3. The extrusion block 1012 is slidably connected in the extrusion groove 31. Both ends of the extrusion spring 1011 are respectively connected to the right end of the extrusion block 1012 and the extrusion groove 31. A rotating groove 111 is provided at the right end of the module groove 11. The rotating disk 1013 is rotatably connected in the rotating groove 111. A clamping groove 10131 begins to be provided in the rotating disk 1013. A torsion spring is provided between the center of the right end of the rotating disk 1013 and the housing 1 (see FIG. Not drawn), the torsion spring can provide a certain steering force for resetting the turntable 1013 after the turntable 1013 rotates, and the clamping block 1014 is slidably connected in the clamping groove 10131. The left end of the clamping block 1014 cooperates with the extrusion block 1012. The cooperation here means that when the clamping block 1014 and the extrusion block 1012 are in contact with each other, the clamping block 1014 can push the extrusion block 1012 to the right, and the two ends of the clamping spring 1017 are respectively in contact with the right end of the clamping block 1014 and the inner wall of the turntable 1013. There are wiring holes 10132 on the turntable 1013 and the clamping block 1014. The wiring holes 10132 have the same diameter as the temperature sensing hole 12. A plurality of trigger grooves 10131 are axially opened in the turntable 1013, and each trigger groove 1013 1 is provided with a trigger block 1015, a trigger baffle 1018 is provided on the side of the trigger block 1015, a trigger chamfer 1016 is provided on the end of the trigger block 1015 close to the pressing block 1014, and the trigger chamfer 1016 cooperates with the pressing block 1014. The cooperation here means that when the pressing block 1014 moves to the right, the edge of the pressing block 1014 gradually contacts with the trigger chamfer 1016, and the trigger block 1015 is pushed away from the pressing block 1014 along the trigger chamfer 1016, so that the end of the trigger block 1015 away from the pressing block 1014 extends out of the outer side of the rotating disk 1013, and the two ends of the trigger spring 1019 respectively abut against the end of the trigger baffle 1018 away from the pressing block 1014 and the inner wall of the rotating disk 1013, and the trigger rod 10101 is arranged at the front end of the locking rod 86, and the trigger block 1015 cooperates with the trigger rod 10101. The cooperation here means that when the trigger block 1015 extends out of the outer side of the turntable 1013 away from the pressing block 1014, when the turntable 1013 rotates to drive the trigger block 1015 to rotate, and the trigger block 1015 rotates to the upper end of the trigger rod 10101, the trigger block 1015 can contact the upper end of the trigger rod 10101, and as the turntable 1013 continues to rotate, the trigger block 1015 can drive the trigger rod 10101 to move downward, and the downward movement of the trigger rod 10101 drives the locking rod 86 to move downward to squeeze the lifting spring 85, so that the upper end of the locking rod 86 is pulled out of the locking groove 87, and when the lifting spring 85 is compressed to the limit position,The rotating disk 1013 stops rotating when the trigger rod 10101 and the trigger block 1015 abut against each other.

[0037] See also Figure 7 Specifically, the lead 2 includes a trigger section 21, a reaction section 22 and an end section 23. The trigger section 21 is arranged in the extrusion block 1012, the reaction section 22 is arranged at the left end of the trigger section 21, and the end section 23 is arranged at the left end of the trigger section 21. The diameters of the trigger section 21 and the reaction section 22 are the same as the diameter of the temperature sensing tank. The hardness of the trigger section 21 and the end section 23 is higher than that of the reaction section 22. The trigger section 21 and the end section 23 are made of alloy material, which is suitable for high-temperature ignition and has a certain hardness and deformation resistance. The reaction section 22 is made of carbon fiber material and has a certain bending and deformation ability. It can be bent and arranged in the extrusion groove 31 to facilitate stretching when the extrusion block 1012 is extended.

[0038] In the embodiment of the present invention, three module slots 11 are provided, and the inner wall of the module slot 11 is provided with a heat insulation film (not shown in the figure), which can effectively isolate the heat transfer of each module slot 11, and three fire-fighting modules 3 are provided with corresponding module slots 11. Three temperature sensing holes 12 are circumferentially opened on the right wall of the shell 1, and two groups of trigger slots 10131, trigger baffles 1018 and trigger springs 1019 are respectively provided in the turntable 1013. The specific number can be reasonably arranged according to the needs of the fire-fighting module 3.

[0039] Working principle: When installing the self-response passive fire extinguishing device in the electrical cabinet, the operator first twists the twist handle 16 to make the twist handle 16 drive the turntable 1013 to rotate, so that the torsion spring between the turntable 1013 and the shell 1 is deformed, and finally the wiring hole 10132 on the turntable 1013 is aligned with the temperature sensing hole 12 on the top layer, and the remaining temperature sensing holes 12 are blocked by the turntable 1013. Then the operator first installs the fire module 3 into the module slot 11, so that the lead 2 trigger section 21 of the fire module 3 in the top module slot 11 is inserted into the temperature sensing hole 12 on the shell 1 along the wiring hole 10132 of the clamping block 1014 and the wiring hole 10132 of the turntable 1013, and the right end of the lead 2 trigger section 21 of the fire module 3 in the remaining module slots 11 is aligned with the turntable 1013 or The heat insulation layer of the compression block 1014 is fitted, and then the operator tears off the M3 tape sticker at the rear end of the shell 1, and then sticks the shell 1 to the side or top of the concentrated wire connector in the electrical cabinet, and rotates the angle of the grille 4 to adjust the spray direction of the fire extinguishing material sprayed out after the fire module 3 reacts, so that the fire extinguishing material can face the flammable points in the electrical cabinet. When rotating the grille 4, the grille 4 drives the connecting gear 72 and the induced draft gear 75 on the left and right sides to rotate, and the rotation of the connecting gear 72 drives the connecting rack 71 to slide in the connecting groove 13, and the locking groove 87 under the connecting rack 71 moves to the side of the lifting groove 15 with the connecting rack 71, and then the operator aligns the insertion rod 81 with the insertion groove 14, so that the end cover 5 moves to the right to fit the shell 1, and the induced draft rack 74 finally The lifting chamfer 85 is meshed with the induced draft gear 75. During this process, the end cover 5 moves to the right, driving the insertion rod 81 to move to the right. The module insertion rod 61 at the right end of the end cover 5 abuts against the end section 23 of the lead 2 of the fire protection module 3 until the upper right corner of the insertion rod 81 is in contact with the lifting chamfer 83. Then the insertion rod 81 continues to move to the right. At this time, the insertion rod 81 pushes the lifting rod 84, the lifting spring 85, and the locking rod 86 upward along the lifting chamfer 83, so that the upper end of the locking rod 86 is in contact with the lower end of the connecting rack 71, and finally the lifting chamfer 83 slides to the upper end of the insertion rod 81. After the end cover 5 is in contact with the shell 1, the fixing groove 82 moves to the bottom of the lifting rod 84. The lifting chamfer 83 is inserted into the fixing groove 82 under the action of the lifting spring 85, so as to realize the rightward movement direction of the end cover 5. The locking of the locking rod 86 and the lower end of the connecting rack 71 are maintained, and the lifting spring 85 is in a compressed state. Then the operator presses the grille 4 to make the grille 4 parallel to the upper end of the shell 1 to achieve sealing. In this process, the grille 4 rotates to drive the connecting gears 72 and the air induced gear 75 at the left and right ends to rotate. The air induced gear 75 rotates to drive the air induced rack 74 to move. The air induced rack 74 moves to squeeze or stretch the air induced springs 73 on both sides thereof. The connecting gear 72 rotates to drive the connecting rack 71 to move. Finally, the connecting rack 71 drives the locking groove 87 to move to the upper end of the locking rod 86. The locking rod 86 is inserted into the locking groove 87 under the action of the lifting spring 85, so as to achieve locking between the end cover 5 and the shell 1. The grille 4 is parallel to the upper end of the shell 1 and is sealed.The extrusion block 1012 in the uppermost module slot 11 is fitted with the pressing block 1014, and the triggering sections 21 of the leads 2 in the remaining module slots 11 are fitted with the heat-insulating film on the outer wall of the rotating disk 1013.

[0040] When a fire occurs in the electrical cabinet, the trigger section 21 of the lead 2 in the temperature sensing hole 12 is ignited because the external temperature reaches the set ignition temperature of the lead 2, so that the lead 2 burns along the trigger section 21 to the reaction section 22, and the reaction section 22 reacts chemically with the fire module 3 to produce a large amount of flame retardant substances, and finally the end section 23 is burned to completion. In this process, when the trigger section 21 is burned out, the turntable 1013 and the temperature sensing hole 12 are indeed supported by the hardness of the trigger section 21 of the lead 2. The turntable 1013 rotates under the action of the torsion spring, and the temperature sensing hole 12 on the shell 1 is blocked by the turntable 1013. At this time, since the end section 23 has not started to burn, a certain hardness is retained, so that the module plug rod 61 is always in contact with the end section 23, so that the fire module 3 is always located in the module slot 11 on the right side to squeeze the replacement spring 63, and the extrusion spring 1011 in the fire module 3 pushes the extrusion block 1012 to squeeze the clamping block 10 14. The pressing block 1014 squeezes the trigger chamfer 1016, so that the trigger block 1015 extends out of the turntable 1013. Therefore, when the turntable 1013 rotates, the trigger block 1015 will be driven to rotate until the trigger block 1015 extending out of the turntable 1013 is in contact with the trigger rod 10101, and the trigger rod 10101 is squeezed to move downward, so that the trigger rod 10101 drives the locking rod 86 to move downward to squeeze the lifting spring 85, and the upper end of the locking rod 86 is pulled out of the locking groove 87. At this time, the air induced rack 74 on the left side of the grille 4 is reset under the action of the air induced spring 73, and the reset of the air induced rack 74 drives the air induced gear 75 to rotate, and the rotation of the air induced gear 75 drives the grille 4 to rotate to a preset angle, so that when the trigger segment 21 of the lead 2 is ignited, the grille 4 of the self-responsive passive fire extinguishing device can be quickly opened and aimed at the fire source where the wires are concentrated in the electrical cabinet, so as to achieve rapid and accurate fire extinguishing and reduce economic losses.

[0041] After the trigger section 21 of the lead 2 is ignited, the lead 2 burns to the reaction section 22, and the chemical reaction between the fire fighting module 3 and the reaction section 22 is not finished. Since the end section 23 is not burned, the hardness of the material is still guaranteed. Therefore, the fire fighting module 3 is still abutted by the module plug rod 61 and the end section 23 at the right position in the module slot 11. The extrusion block 1012 in the fire fighting module 3 where the lead 2 is burning keeps squeezing the pressing block 1014, so that the pressing block 1014 squeezes the trigger block 1015, and the trigger block 1016 is pressed. 015 extends all the way to the outside of the turntable 1013 away from one end of the clamping block 1014, so that the trigger block 1015 is always in contact with the trigger rod 10101 away from one end of the clamping block 1014, so that the turntable 1013 is prevented from continuing to rotate before the fire fighting module 3 that undergoes chemical reaction with the lead 2 is completed. At this time, the lead 2 on the right side of the fire fighting module 3 in other module slots 11 is in contact with the insulation film on the outer wall of the turntable 1013, and will not be affected by the external temperature and will not be accidentally ignited, thereby achieving the effect of multiple spraying and fire extinguishing.

[0042] Example 2

[0043] See also Figure 7 , a self-responsive passive fire extinguishing device is provided, including a replacement component 6, the replacement component 6 includes a module plug rod 61, a plug rod groove 62 and a replacement spring 63, the module plug rod 61 is arranged at the right end of the end cover 5, the plug rod groove 62 is opened at the left end of the fire module 3, an end section 23 is arranged in the plug rod groove 62, the right end of the module plug rod 61 abuts against the left end of the end section 23, the diameter of the module plug rod 61 is the same as that of the plug rod groove 62, after the end section 23 of the lead 2 in the plug rod groove 62 is burned, the fire module 3 moves to the left under the action of the replacement spring 63, so that the module plug rod 61 can be inserted into the plug rod groove 62, the replacement spring 63 is arranged at the right end of the fire module 3, and the two ends of the replacement spring 63 abut against the right end of the fire module 3 and the module groove 11 respectively.

[0044] See also Figure 7 Specifically, the right end of the shell 1 is rotatably connected with a twist handle 16, the right end of the twist handle 16 is fixedly connected to the turntable 1013, the left ends of the turntable 1013 and the pressing block 1014 are affixed with a heat insulation film, and the right end of the trigger section 21 is in contact with the heat insulation film.

[0045] The rest of the structure is the same as that of Example 1.

[0046] Working principle: When a fire starts to occur in the electrical cabinet, the trigger section 21 of the lead 2 in the uppermost module slot 11 starts to burn, the grille 4 opens, the turntable 1013 rotates to block the temperature sensing hole 12, and the fire module 3 and the reaction section 22 of the lead 2 begin to react to release flame-retardant gas to extinguish the flammable parts of the wires in the electrical cabinet. After the fire is extinguished, the lead 2 in the fire module 3 burns to the end section 23. At this time, the rod slot 62 of the fire module 3 in the uppermost module slot 11 is hollow, and the lead 2 is completely burned. The fire module 3 in the uppermost module slot 11 loses contact with the module rod 61, so the fire module 3 in the uppermost module slot 11 moves to the left under the action of the replacement spring 63. At this time, the extrusion block 1012 at the right end of the fire module 3 in the uppermost module slot 11 loses contact with the clamping block 1014, and the clamping block 1014 moves to the left under the action of the clamping spring 1017. Reset, the trigger block 1015 is reset under the action of the trigger spring 1019, and the trigger block 1015 is retracted into the turntable 1013 away from the pressing block 1014. At this time, the trigger block 1015 is separated from the abutment with the trigger rod 10101, and the trigger rod 10101 is reset upward under the action of the lifting spring 85, and the turntable 1013 continues to rotate under the action of the torsion spring until the wiring hole 10132 of the pressing block 1014 and the turntable 1013 is opposite to another temperature sensing hole 12 on the shell 1, and the wiring hole 10132 of the lead 2 trigger section 21 at the right end of the fire fighting module 3 in the other module slot 11 is opposite to the temperature sensing hole 12, and the extrusion block 1012 in the fire fighting module 3 drives the lead 2 trigger section 21 to extend to the left from the temperature sensing hole 12 under the action of the extrusion spring 1011, so that the fire fighting module 3 in the self-response passive fire extinguishing device can realize multiple fire extinguishing at the same temperature in sequence, effectively preventing the occurrence of re-ignition in the electrical cabinet.

[0047] Example 3

[0048] See also Fig. 9 , a self-responsive passive fire extinguishing device is provided, including a disassembly component 9, the disassembly component 9 includes a disassembly rod 91, a disassembly baffle 92, a disassembly spring 93 and a disassembly groove 94, the disassembly groove 94 is opened in the insertion rod 81, the disassembly rod 91 is slidably connected in the disassembly groove 94, the disassembly baffle 92 is arranged at the lower end of the disassembly rod 91, the two ends of the disassembly spring 93 are respectively abutted against the right end of the disassembly baffle 92 and the inner wall of the insertion rod 81, and the right end of the disassembly rod 91 cooperates with the lifting chamfer 83. The cooperation here means that when the end cover 5 needs to be removed from the shell 1, the operator pushes the pressing handle 911 to the right to drive the disassembly rod 91 to move to the right, and the disassembly rod 91 moves to the right to drive the disassembly baffle 92 to squeeze the disassembly spring 93, and gradually fits with the lifting chamfer 83, and finally pushes the lifting rod 84 upward along the lifting chamfer 83 to the top of the insertion rod 81, so that the operator can pull the pull ring 52 to remove the end cover 5 to the left.

[0049] See also Fig. 9 A pressing handle 911 is provided at the left end of the disassembly rod 91, and a pull ring 52 is provided at the left end of the end cover 5. The setting of the pull ring 52 can facilitate the operator to operate with one hand. One finger presses the pressing handle 911 and one finger pulls the pull ring 52 to move to the left to realize the disassembly of the end cover 5.

[0050] The rest of the structure is the same as that of Example 2.

[0051] Working principle: When a fire occurs in the electrical cabinet, after the self-response passive fire extinguishing device extinguishes the fire, when the staff needs to replace the fire fighting module 3, the operator only needs to push the pressing handle 911 to the right to drive the disassembly rod 91 to move to the right, so that the disassembly rod 91 moves to the right to drive the disassembly baffle 92 to squeeze the disassembly spring 93, and gradually fit with the lifting chamfer 83, and finally push the lifting rod 84 upward along the lifting chamfer 83 to the top of the insertion rod 81, so that the operator can pull the pull ring 52 to remove the end cover 5 to the left, and then the operator takes out the fire fighting module 3 in the shell 1, and then turns the twist handle 16 again, and adds a new fire fighting module 3 to the module slot 11 in turn, and finally closes the end cover 5 to the right end of the shell 1, presses the grille 4 to be level with the upper end of the shell 1, and achieves sealing. While realizing the reusability of the self-response passive fire extinguishing device, the disassembly and replacement of the fire fighting module 3 is more convenient.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A self-response passive fire extinguishing device, characterized in that: The invention comprises a shell (1), a lead (2), a fire module (3), a grille (4), an end cover (5), a replacement component (6), an air induction component (7), a locking component (8), a disassembly component (9) and a trigger component (101); the shell (1) is provided with a plurality of module slots (11); the fire module (3) is provided with a plurality of modules, each of which is correspondingly arranged in a module slot (11); the grille (4) is arranged at the upper end of the shell (1); the lead (2) is arranged on both sides of the fire module (3); the end cover (5) is arranged on the left side of the shell (1); a temperature sensing hole (12) is arranged on the right side of the module slot (11); the air induction component (7) is arranged on both sides of the grille (4) and is used to control the grille (4) to open. The locking component (8) is arranged on the right side of the end cover (5), and cooperates with the air induction component (7) to lock the end cover (5) and the grille (4) after the end cover (5) and the housing (1) are fitted together. The trigger component (101) is arranged on the right side of the fire module (3), and cooperates with the locking component (8) to open the grille (4) and close the temperature sensing hole (12) after the fuse (2) is ignited. The replacement component (6) is arranged on the left and right sides of the fire module (3), and cooperates with the trigger component (101) to open the temperature sensing hole (12) after the fuse (2) is ignited, and a new fuse (2) is placed in the temperature sensing hole (12). The disassembly component (9) is arranged in the end cover (5), and is used to cooperate with the locking component (8) to unlock the end cover (5).

2. The self-response passive fire extinguishing device according to claim 1, characterized in that: The air induction component (7) comprises a connecting rack (71), a connecting gear (72), an air induction spring (73), an air induction rack (74) and an air induction gear (75); a connecting groove (13) is provided in the housing (1); the connecting rack (71) is slidably connected in the connecting groove (13); a plurality of grilles (4) are provided; a connecting gear (72) is provided at the right end of each grille (4); and each connecting gear (72) is connected to the connecting gear (74) and the connecting gear (75) is connected to the connecting gear (75). The end cover (5) is provided with an air induction support platform (51) at the right end, the air induction rack (74) is slidably connected to the air induction support platform (51), the air induction spring (73) is provided at both ends of the air induction rack (74), one end of the air induction spring (73) away from the air induction rack (74) is connected to the air induction support platform (51), the air induction gear (75) is provided at the left end of the grille (4), and the air induction gear (75) is meshed with the air induction rack (74).

3. The self-response passive fire extinguishing device according to claim 2, characterized in that: The locking component (8) comprises an insertion rod (81), a fixing groove (82), a lifting chamfer (83), a lifting rod (84), a lifting spring (85), a locking rod (86) and a locking groove (87); an insertion groove (14) is provided at the bottom of the housing (1); a lifting groove (15) is provided at the lower end of the connecting groove (13); the insertion rod (81) is provided at the right end of the end cover (5); the insertion rod (81) is connected to the insertion groove (14); the fixing groove (82) is provided at Insert the upper end of the rod (81), the lifting rod (84) is slidably connected in the lifting groove (15), the lifting chamfer (83) is arranged at the lower left end of the lifting rod (84), the lifting chamfer (83) cooperates with the fixing groove (82), the lifting spring (85) is arranged at the upper end of the lifting rod (84), the locking rod (86) is arranged at the upper end of the lifting spring (85), the locking groove (87) is opened at the lower end of the connecting rod, and the upper end of the locking rod (86) cooperates with the locking groove (87).

4. The self-response passive fire extinguishing device according to claim 3, characterized in that: The trigger component (101) comprises an extrusion spring (1011), an extrusion block (1012), a rotating disk (1013), a pressing block (1014), a trigger block (1015), a trigger chamfer (1016), a pressing spring (1017), a trigger baffle (1018), a trigger spring (1019) and a trigger rod (10101). An extrusion groove (31) is provided at the right end of the fire module (3), and the extrusion block (1012) is connected to the extrusion groove (31). The two ends of the extrusion spring (1011) are respectively connected to the right end of the extrusion block (1012) and the extrusion groove (31), the right end of the module groove (11) is provided with a rotation groove (111), the rotating disk (1013) is connected to the rotation groove (111), the rotating disk (1013) is provided with a pressing groove (10131), the pressing block (1014) is connected to the pressing groove (10131), and the left end of the pressing block (1014) cooperates with the extrusion block (1012) The two ends of the compression spring (1017) are respectively in contact with the right end of the compression block (1014) and the inner wall of the rotating disk (1013); the rotating disk (1013) and the compression block (1014) are provided with wiring holes (10132); the rotating disk (1013) is provided with a trigger groove (10131); the trigger block (1015) is arranged in the trigger groove (10131); the trigger baffle (1018) is arranged on the side of the trigger block (1015); the trigger chamfer (1016) is arranged at one end of the trigger block (1015) close to the clamping block (1014), the trigger chamfer (1016) cooperates with the clamping block (1014), the two ends of the trigger spring (1019) are respectively in contact with one end of the trigger baffle (1018) away from the clamping block (1014) and the inner wall of the rotating disk (1013), the trigger rod (10101) is arranged at the front end of the locking rod (86), and the trigger block (1015) cooperates with the trigger rod (10101).

5. The self-response passive fire extinguishing device according to claim 4, characterized in that: The right end of the shell (1) is rotatably connected to a twist handle (16), and the right end of the twist handle (16) is fixedly connected to the rotating disk (1013).

6. The self-response passive fire extinguishing device according to claim 4, characterized in that: The lead wire (2) comprises a trigger section (21), a reaction section (22) and an end section (23); the trigger section (21) is arranged in an extrusion block (1012); the reaction section (22) is arranged at the left end of the trigger section (21); and the end section (23) is arranged at the left end of the trigger section (21); the trigger section (21) and the end section have a higher hardness than the reaction section (22).

7. The self-response passive fire extinguishing device according to claim 4, characterized in that: The left ends of the rotating disk (1013) and the pressing block (1014) are provided with a heat insulation film, and the right end of the trigger section is in contact with the heat insulation film.

8. The self-responsive passive fire extinguishing device according to claim 6, characterized in that: The replacement component (6) comprises a module plug rod (61), a plug rod slot (62) and a replacement spring (63); the module plug rod (61) is arranged at the right end of the end cover (5); the plug rod slot (62) is opened at the left end of the fire module (3); the right end of the module plug rod (61) abuts against the left end of the end section (23); the diameter of the module plug rod (61) is the same as that of the plug rod slot (62); the replacement spring (63) is arranged at the right end of the fire module (3); and the two ends of the replacement spring (63) abut against the right end of the fire module (3) and the module slot (11) respectively.

9. The self-responsive passive fire extinguishing device according to claim 8, characterized in that: The disassembly component (9) includes a disassembly rod (91), a disassembly baffle (92), a disassembly spring (93) and a disassembly groove (94); the disassembly groove (94) is provided in the insertion rod (81); the disassembly rod (91) is connected in the disassembly groove (94); the disassembly baffle (92) is arranged at the lower end of the disassembly rod (91); the two ends of the disassembly spring (93) are respectively in contact with the right end of the disassembly baffle (92) and the inner wall of the insertion rod (81); and the right end of the disassembly rod (91) cooperates with the lifting chamfer (83).

10. The self-response passive fire extinguishing device according to claim 9, characterized in that: The left end of the disassembly rod (91) is provided with a pressing handle (911), and the left end of the end cover (5) is provided with a pull ring (52).

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