Automatic fire extinguishing device for switch cabinet

Abstract

The utility model discloses an automatic fire extinguishing device for a switch cabinet, which comprises a switch cabinet main body, the inner wall of the switch cabinet main body is rotatably connected with a rotating rod, the surface of the rotating rod is fixedly connected with a fire extinguishing mechanism, the inner bottom of the switch cabinet main body is rotatably connected with an eccentric disc, and the surface of the eccentric disc is fixedly connected with a convex column inserted into the inner side of a limiting frame. A bottom box is arranged on the lower surface of the switch cabinet body, and a trigger mechanism and a driving mechanism for driving the eccentric disc to rotate are arranged in the bottom box. By arranging the triggering mechanism and the driving mechanism, a hot melting column can be melted by high temperature, and an I-shaped block slides downwards under the action of gravity due to lack of support of the hot melting column, so that a contact switch is turned on, an opening command is sent to an electromagnetic valve by utilizing the contact switch, and a fire can be extinguished through a fire extinguishing mechanism; the spring can push the rack to slide in the strip-shaped sliding groove, so that the multiple fire extinguishing agent sprayers are driven to swing, the fire extinguishing range is greatly widened, and the fire extinguishing effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing equipment, in particular to an automatic fire extinguishing device for a switch cabinet. Background Art

[0002] Switchgear is a closed electrical device used to control and protect low-voltage or high-voltage switchgear in power systems. It usually contains components such as circuit breakers, disconnectors, grounding switches, transformers, lightning arresters, etc., which are used to realize the functions of opening and closing, protection and monitoring of circuits. Switchgear has the characteristics of compact structure, convenient operation, safety and reliability, and is widely used in power systems, industrial enterprises and building facilities.

[0003] Through searching, it was found that CN206120989U discloses an automatic fire detection and extinguishing device for a high-voltage switch cabinet, comprising a fire extinguishing agent storage tank, a plurality of agent nozzles facing different directions on the storage tank, and a fire detection tube arranged on each agent nozzle for detecting the fire source, the fire detection tube comprising a sealing tube that can be melted by heat, a temperature sensor for measuring the temperature of the sealing tube, an air pressure detection device for measuring the air pressure in the sealing tube, and a safety valve for opening and closing the agent nozzle controlled by the air pressure detection device and the temperature sensor at the same time, the sealing tube is sleeved on the outside of the agent nozzle to seal the agent nozzle, and a buzzer alarm is connected to the temperature sensor. The utility model extinguishes the fire in the early stage of development by arranging a fire extinguishing device with a fire detection tube in the switch cabinet, thereby reducing secondary damage to the equipment, and does not require manual operation. It is convenient, fast, safe and highly targeted.

[0004] However, there are still some problems and shortcomings in the use process: due to the fixed direction of the agent nozzle, the fire extinguishing range is greatly reduced and the fire extinguishing effect is affected, so it needs to be improved. Now there is an urgent need for an automatic fire extinguishing device for a switch cabinet to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic fire extinguishing device for a switch cabinet to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic fire extinguishing device for a switch cabinet, comprising a switch cabinet body, an inner wall of the switch cabinet body is fixedly connected to a mounting plate, the surface of the mounting plate is fixedly connected to an electrical component by bolts, a cabinet door is hinged on the front side of the switch cabinet body, a tank mounting sleeve is fixedly connected to the left side of the switch cabinet body, a rotating rod is rotatably connected to the inner wall of the switch cabinet body, a fire extinguishing mechanism is fixedly connected to the surface of the rotating rod, a limiting frame is fixedly connected to the lower surface of the rotating rod, an eccentric disk is rotatably connected to the inner bottom of the switch cabinet body, a convex column inserted into the inner side of the limiting frame is fixedly connected to the surface of the eccentric disk, a bottom box is arranged on the lower surface of the switch cabinet body, and a trigger mechanism and a driving mechanism for driving the eccentric disk to rotate are respectively arranged inside the bottom box.

[0007] Preferably, the fire extinguishing mechanism includes a delivery pipe rack, multiple fire extinguishing agent nozzles, a delivery hose, a solenoid valve and a fire extinguishing agent tank. The fire extinguishing agent tank can be detachably installed in a tank body mounting sleeve, the delivery pipe rack is fixedly connected to the surface of the rotating rod, multiple fire extinguishing agent nozzles are equidistantly arranged on the surface of the delivery pipe rack, the delivery hose is arranged between the delivery pipe rack and the fire extinguishing agent tank, and the solenoid valve is arranged in the middle of the delivery hose.

[0008] Preferably, the trigger mechanism includes an upper limit sleeve, a lower limit sleeve, a hot melt column, an I-block, a contact switch and a porous plug. The upper limit sleeve and the lower limit sleeve are fixedly connected to the inner wall of the bottom box, the hot melt column is inserted into the inner side of the upper limit sleeve and the lower limit sleeve, the porous plug is threadedly connected to the inner side of the lower limit sleeve, the I-block is slidably connected to the surface of the upper limit sleeve, the contact switch is arranged on the surface of the upper limit sleeve, and the contact switch is located directly below the I-block, and the contact switch and the solenoid valve are electrically connected.

[0009] Preferably, the driving mechanism includes a spring, a rack, a gear and a power column. The inner wall of the bottom box is provided with a strip slide groove. The rack is slidably connected in the strip slide groove and contacts the hot melt column. The spring is fixedly connected between the rack and the inner wall of the bottom box. The power column is rotatably connected to the lower inner wall of the bottom box, and the upper end of the power column is fixedly connected to the eccentric disk. The gear is fixedly connected to the outer surface of the power column, and the gear and the rack can mesh with each other.

[0010] Preferably, an inertia disk is fixedly connected to the outer surface of the power column.

[0011] Preferably, an arc-shaped slide groove is provided on the inner wall of the switch cabinet body, a slide rod is slidably connected to the inner wall of the arc-shaped slide groove, and one end of the slide rod away from the arc-shaped slide groove is fixedly connected to the conveying pipe rack.

[0012] Preferably, an alarm is provided on the surface of the switch cabinet body, and the alarm is electrically connected to the contact switch.

[0013] Beneficial Effects

[0014] The utility model provides an automatic fire extinguishing device for a switch cabinet, which has the following beneficial effects:

[0015] 1. The automatic fire extinguishing device of the switch cabinet is provided with a trigger mechanism and a driving mechanism. When the electrical components in the switch cabinet body catch fire, the temperature in the switch cabinet body will rise, and the high temperature will melt the heat-melting column and leak out from the porous plug. At this time, the I-shaped block will slide downward under the action of gravity due to the lack of support from the heat-melting column, and will contact the contact switch, and then turn on the contact switch, and use the contact switch to send an opening command to the solenoid valve, so that the fire can be extinguished through the fire extinguishing mechanism. After the heat-melting column melts, the spring will push the rack to slide in the strip slide groove, and the rack and the gear will mesh with each other to drive the power column to rotate. The rotation of the power column can drive the eccentric disk to rotate, and the convex column can reciprocate to push the limit frame, so that the limit frame can swing, thereby driving multiple fire extinguishing agent nozzles to swing, greatly improving the fire extinguishing range and fire extinguishing effect.

[0016] 2. The automatic fire extinguishing device of the switch cabinet is equipped with an inertia disk. When the rack slides from the left end to the right end of the strip slide, the rack will drive the gear to rotate and then disengage from the gear. Under the inertia of the inertia disk, the power column can be continuously rotated for a period of time, thereby extending the swing time of the fire extinguishing agent nozzle and further improving the fire extinguishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an automatic fire extinguishing device for a switch cabinet proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the bottom box of an automatic fire extinguishing device for a switch cabinet proposed by the utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of a tank installation sleeve of a switch cabinet automatic fire extinguishing device proposed by the utility model;

[0020] Figure 4 The utility model provides an automatic fire extinguishing device for a switch cabinet. Figure 2 A is a schematic diagram of the enlarged structure.

[0021] In the figure: 1. switch cabinet body; 2. mounting plate; 3. electrical components; 4. tank mounting sleeve; 5. rotating rod; 6. fire extinguishing mechanism; 7. limit frame; 8. eccentric disk; 9. boss; 10. bottom box; 11. trigger mechanism; 12. drive mechanism; 13. delivery pipe rack; 14. fire extinguishing agent nozzle; 15. delivery hose; 16. solenoid valve; 17. fire extinguishing agent tank; 18. upper limit sleeve; 19. lower limit sleeve; 20. hot melt column; 21. I-block; 22. contact switch; 23. porous plug; 24. spring; 25. rack; 26. gear; 27. power column; 28. strip slide; 29. ​​inertia disk; 30. arc slide; 31. slide rod; 32. alarm. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] See also Figure 1-4 The utility model provides a technical solution: an automatic fire extinguishing device for a switch cabinet, comprising a switch cabinet body 1, a mounting plate 2 is fixedly connected to the inner wall of the switch cabinet body 1, an electrical component 3 is fixedly connected to the surface of the mounting plate 2 by bolts, a cabinet door is hingedly connected to the front side of the switch cabinet body 1, a tank body mounting sleeve 4 is fixedly connected to the left side of the switch cabinet body 1, a rotating rod 5 is rotatably connected to the inner wall of the switch cabinet body 1, a fire extinguishing mechanism 6 is fixedly connected to the surface of the rotating rod 5, a limiting frame 7 is fixedly connected to the lower surface of the rotating rod 5, an eccentric disk 8 is rotatably connected to the inner bottom of the switch cabinet body 1, a convex column 9 inserted into the inner side of the limiting frame 7 is fixedly connected to the surface of the eccentric disk 8, a bottom box 10 is arranged on the lower surface of the switch cabinet body 1, and a trigger mechanism 11 and a driving mechanism 12 for driving the eccentric disk 8 to rotate are respectively arranged inside the bottom box 10.

[0025] The fire extinguishing mechanism 6 includes a delivery pipe rack 13, multiple fire extinguishing agent nozzles 14, a delivery hose 15, a solenoid valve 16 and a fire extinguishing agent tank 17. The fire extinguishing agent tank 17 can be detachably installed in the tank body mounting sleeve 4. The delivery pipe rack 13 is fixedly connected to the surface of the rotating rod 5. Multiple fire extinguishing agent nozzles 14 are equidistantly arranged on the surface of the delivery pipe rack 13. The delivery hose 15 is arranged between the delivery pipe rack 13 and the fire extinguishing agent tank 17. The solenoid valve 16 is arranged in the middle of the delivery hose 15.

[0026] The trigger mechanism 11 includes an upper limit sleeve 18, a lower limit sleeve 19, a hot melt column 20, an I-shaped block 21, a contact switch 22 and a porous plug 23. The upper limit sleeve 18 and the lower limit sleeve 19 are fixedly connected to the inner wall of the bottom box 10, the hot melt column 20 is inserted into the inner side of the upper limit sleeve 18 and the lower limit sleeve 19, the hot melt column 20 is made of polyethylene wax, the porous plug 23 is threadedly connected to the inner side of the lower limit sleeve 19, the I-shaped block 21 is slidably connected to the surface of the upper limit sleeve 18, the contact switch 22 is arranged on the surface of the upper limit sleeve 18, and the contact switch 22 is located directly below the I-shaped block 21, and the contact switch 22 is electrically connected to the solenoid valve 16.

[0027] The driving mechanism 12 includes a spring 24, a rack 25, a gear 26 and a power column 27. A strip groove 28 is provided on the inner wall of the bottom box 10. The rack 25 is slidably connected in the strip groove 28 and contacts the hot melt column 20. The spring 24 is fixedly connected between the rack 25 and the inner wall of the bottom box 10. The power column 27 is rotatably connected to the lower inner wall of the bottom box 10, and the upper end of the power column 27 is fixedly connected to the eccentric disk 8. The gear 26 is fixedly connected to the outer surface of the power column 27, and the gear 26 and the rack 25 can mesh with each other. By setting the trigger mechanism 11 and the driving mechanism 12, when the electrical component 3 in the switch cabinet body 1 catches fire, the temperature in the switch cabinet body 1 will rise, and the high temperature will melt the hot melt column 20, and from The porous plug 23 leaks down. At this time, the I-shaped block 21 will slide downward under the action of gravity due to the lack of support from the hot-melt column 20, and will come into contact with the contact switch 22, thereby turning on the contact switch 22, and using the contact switch 22 to send an opening command to the solenoid valve 16, so that the fire can be extinguished through the fire extinguishing mechanism 6. Moreover, after the hot-melt column 20 melts, the spring 24 will push the rack 25 to slide in the strip slide groove 28. The rack 25 and the gear 26 are engaged with each other, so as to drive the power column 27 to rotate. The rotation of the power column 27 can drive the eccentric disk 8 to rotate, and the convex column 9 can reciprocate to push the limit frame 7, so that the limit frame 7 can swing, thereby driving the multiple fire extinguishing agent nozzles 14 to swing, thereby greatly improving the fire extinguishing range and fire extinguishing effect.

[0028] An inertia disk 29 is fixedly connected to the outer surface of the power column 27. By setting the inertia disk 29, when the rack 25 slides from the left end to the right end of the strip slide groove 28, the rack 25 will drive the gear 26 to rotate and then disengage from the gear 26. Under the inertia of the inertia disk 29, the power column 27 can be continuously rotated for a period of time, thereby extending the swing time of the fire extinguishing agent nozzle 14 and further improving the fire extinguishing efficiency.

[0029] An arc-shaped slide groove 30 is provided on the inner wall of the switch cabinet body 1, and a slide rod 31 is slidably connected to the inner wall of the arc-shaped slide groove 30. One end of the slide rod 31 away from the arc-shaped slide groove 30 is fixedly connected to the conveying pipe rack 13. By setting the arc-shaped slide groove 30 and the slide rod 31, and utilizing the slide rod 31 to slide in the arc-shaped slide groove 30, the conveying pipe rack 13 and the fire extinguishing agent nozzle 14 can swing more smoothly.

[0030] Example 2

[0031] See also Figure 1-4 , including Example 1, and on the basis of Example 1, the utility model provides a technical solution: an alarm 32 is provided on the surface of the switch cabinet body 1, and the alarm 32 is electrically connected to the contact switch 22. By setting the alarm 32, the alarm 32 can be turned on by sending an opening command to the alarm 32 using the contact switch 22, so that nearby staff can be warned.

[0032] Working principle: When the automatic fire extinguishing device of the switch cabinet is in use, if the electrical component 3 in the switch cabinet body 1 catches fire, the temperature in the switch cabinet body 1 will rise, and the high temperature will melt the heat-melting column 20 and leak from the porous plug 23. At this time, the I-shaped block 21 will slide downward under the action of gravity due to the lack of support from the heat-melting column 20, so that it will contact the contact switch 22, and then turn on the contact switch 22. The contact switch 22 sends an opening command to the solenoid valve 16 and the alarm 32, which can turn on the alarm 32, so that the nearby staff can be warned, and the fire extinguishing agent in the fire extinguishing agent tank 17 can be extinguished. The agent will pass through the solenoid valve 16, the delivery hose 15 and enter the delivery pipe rack 13, and finally be sprayed out from the fire extinguishing agent nozzle 14, so as to extinguish the fire. Moreover, after the hot melt column 20 melts, the spring 24 will push the rack 25 to slide in the strip slide groove 28. The rack 25 and the gear 26 are meshed with each other, so as to drive the power column 27 to rotate. The rotation of the power column 27 can drive the eccentric disk 8 to rotate. The convex column 9 is used to reciprocately push the limit frame 7, so that the limit frame 7 can swing, and the rotating rod 5 rotates reciprocatingly, thereby driving multiple fire extinguishing agent nozzles 14 to swing, which greatly improves the fire extinguishing range and fire extinguishing effect.

[0033] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A switch cabinet automatic fire extinguishing device, comprising a switch cabinet body (1), characterized in that: The inner wall of the switch cabinet body (1) is fixedly connected to a mounting plate (2), the surface of the mounting plate (2) is fixedly connected to an electrical component (3) by bolts, the front side of the switch cabinet body (1) is hinged with a cabinet door, the left side of the switch cabinet body (1) is fixedly connected to a tank body mounting sleeve (4), the inner wall of the switch cabinet body (1) is rotatably connected to a rotating rod (5), the surface of the rotating rod (5) is fixedly connected to a fire extinguishing mechanism (6), the lower surface of the rotating rod (5) is fixedly connected to a limiting frame (7), the inner bottom of the switch cabinet body (1) is rotatably connected to an eccentric disk (8), the surface of the eccentric disk (8) is fixedly connected to a convex column (9) inserted into the inner side of the limiting frame (7), the lower surface of the switch cabinet body (1) is provided with a bottom box (10), and the interior of the bottom box (10) is respectively provided with a trigger mechanism (11) and a driving mechanism (12) for driving the eccentric disk (8) to rotate.

2. The automatic fire extinguishing device for a switch cabinet according to claim 1, characterized in that: The fire extinguishing mechanism (6) comprises a delivery pipe rack (13), a plurality of fire extinguishing agent nozzles (14), a delivery hose (15), a solenoid valve (16) and a fire extinguishing agent tank (17); the fire extinguishing agent tank (17) is detachably mounted in a tank body mounting sleeve (4); the delivery pipe rack (13) is fixedly connected to the surface of a rotating rod (5); a plurality of fire extinguishing agent nozzles (14) are equidistantly arranged on the surface of the delivery pipe rack (13); the delivery hose (15) is arranged between the delivery pipe rack (13) and the fire extinguishing agent tank (17); and the solenoid valve (16) is arranged in the middle of the delivery hose (15).

3. The automatic fire extinguishing device for a switch cabinet according to claim 1, characterized in that: The trigger mechanism (11) comprises an upper limit sleeve (18), a lower limit sleeve (19), a hot melt column (20), an I-shaped block (21), a contact switch (22) and a porous plug (23); the upper limit sleeve (18) and the lower limit sleeve (19) are both fixedly connected to the inner wall of the bottom box (10); the hot melt column (20) is inserted into the inner side of the upper limit sleeve (18) and the lower limit sleeve (19); the porous plug (23) is threadedly connected to the inner side of the lower limit sleeve (19); the I-shaped block (21) is slidably connected to the surface of the upper limit sleeve (18); the contact switch (22) is arranged on the surface of the upper limit sleeve (18); the contact switch (22) is located directly below the I-shaped block (21); and the contact switch (22) and the solenoid valve (16) are electrically connected.

4. The automatic fire extinguishing device for a switch cabinet according to claim 1, characterized in that: The driving mechanism (12) comprises a spring (24), a rack (25), a gear (26) and a power column (27); the inner wall of the bottom box (10) is provided with a strip-shaped slide groove (28); the rack (25) is slidably connected in the strip-shaped slide groove (28) and contacts the hot melt column (20); the spring (24) is fixedly connected between the rack (25) and the inner wall of the bottom box (10); the power column (27) is rotatably connected to the lower inner wall of the bottom box (10); and the upper end of the power column (27) is fixedly connected to the eccentric disk (8); the gear (26) is fixedly connected to the outer surface of the power column (27); and the gear (26) and the rack (25) can mesh with each other.

5. The automatic fire extinguishing device for a switch cabinet according to claim 4, characterized in that: An inertia disk (29) is fixedly connected to the outer surface of the power column (27).

6. The automatic fire extinguishing device for a switch cabinet according to claim 1, characterized in that: The inner wall of the switch cabinet body (1) is provided with an arc-shaped slide groove (30), the inner wall of the arc-shaped slide groove (30) is slidably connected with a slide rod (31), and one end of the slide rod (31) away from the arc-shaped slide groove (30) is fixedly connected to the conveying pipe rack (13).

7. The automatic fire extinguishing device for a switch cabinet according to claim 1, characterized in that: An alarm (32) is provided on the surface of the switch cabinet body (1), and the alarm (32) is electrically connected to the contact switch (22).

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