Fire extinguishing device triggered at high temperature

By using camera monitoring and a mechanical drive system to adjust the position and spray angle of the extinguishing agent tank, the problem of delayed spraying in existing fire extinguishing devices has been solved. This enables precise spraying of the extinguishing agent under high-temperature triggering, improving fire extinguishing efficiency and reducing waste.

CN223995294UActive Publication Date: 2026-03-17NANJING WEISHIHONG INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing fire extinguishing devices suffer from delayed extinguishing agent dispensing due to high-temperature triggering delays, which may lead to the spread of open flames and waste of extinguishing agent.

Method used

The system uses cameras to monitor the switch cabinet in real time, and adjusts the position of the extinguishing agent tank by using lifting rails and chains. Combined with servo motors and electric push rods, it controls the spray angle of the extinguishing agent to achieve precise strike.

Benefits of technology

It achieves precise strike of extinguishing agent the moment open flame appears, improving extinguishing efficiency and reducing waste of extinguishing agent.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a fire extinguishing device triggered by high temperature, which relates to the technical field of fire extinguishing devices, and comprises a fire extinguishing agent tank and a switch cabinet for arranging the fire extinguishing agent tank, a plurality of winches which are uniformly distributed and rigidly connected are arranged at the top in the switch cabinet close to a cabinet door, and a plurality of hinged ropes on the winches extend downwards and are provided with lifting rails; vertical rails fixed in the switch cabinet are inserted into the left side and the right side of the upper surface of the lifting rail, a plurality of cameras distributed from top to bottom are fixedly installed on one side of each vertical rail, and a sliding base used for containing a fire extinguishing agent tank is inserted into the side, back to a cabinet door of the switch cabinet, of the lifting rail. And the position of the fire extinguishing agent tank is adjusted through lifting of the lifting rail and horizontal movement of the sliding base on the lifting rail, accurate striking on the open fire is achieved through the fire extinguishing agent tank, and fire extinguishing is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, and in particular to a high-temperature triggered fire extinguishing device. Background Technology

[0002] Fire extinguishing devices are important equipment in the field of fire safety and are commonly found in switch cabinets. For example, an automatic fire extinguishing device for switch cabinets, with publication number CN222265990U, works as follows: If an electrical component inside the switch cabinet catches fire, the temperature inside the switch cabinet will rise. The high temperature will melt the heat-melting column. At this time, the I-beam block, lacking the support of the heat-melting column, will slide downwards under the action of gravity and contact the contact switch, sending an opening command to the solenoid valve and the alarm. This can activate the alarm, thereby alerting nearby personnel. The extinguishing agent in the extinguishing agent tank will pass through the solenoid valve, the delivery hose, and the delivery pipe rack, and finally be sprayed out from the extinguishing agent nozzle to extinguish the fire. Furthermore, the oscillation of the extinguishing agent nozzle greatly enhances the extinguishing range and the extinguishing effect.

[0003] However, the melting of the hot melt column takes a certain amount of time. That is, there is a certain delay between the appearance of open flame and the spraying of extinguishing agent from the I-block and the contact switch. During this delay, the open flame inside the switch cabinet can easily spread, and the extinguishing agent can be sprayed through several extinguishing agent nozzles. Therefore, some of the extinguishing agent may enter the switch cabinet where there is no open flame, resulting in the waste of that part of the extinguishing agent. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a high-temperature triggered fire extinguishing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-temperature triggered fire extinguishing device, comprising a fire extinguishing agent tank and a switch cabinet for housing the fire extinguishing agent tank. Multiple evenly distributed and rigidly connected winches are installed at the top of the switch cabinet near the cabinet door. Hinges on the winches extend downwards and are fitted with lifting rails. Vertical rails fixed inside the switch cabinet are inserted into the left and right sides of the upper surface of the lifting rails. Several cameras distributed from top to bottom are fixedly installed on one side of the vertical rails. A slide for placing the fire extinguishing agent tank is inserted into the side of the lifting rail facing away from the switch cabinet door. Sprockets are rotatably connected to both ends of the upper surface of the lifting rail. A chain connected to the slide is meshed between two sprockets. Cameras are also fixedly installed on the slide.

[0006] Preferably, both the winch and the vertical rail are detachably installed inside the switch cabinet by bolts.

[0007] Preferably, a servo motor for driving the rotation of the sprocket on the same side is fixedly installed on one side of the bottom edge of the lifting rail.

[0008] Preferably, a counterweight is inserted into the side of the lifting rail facing the switch cabinet door. The counterweight is fixed to the surface of the chain, and the counterweight and the slide are symmetrically arranged about the central axis of the lifting rail.

[0009] Preferably, the extinguishing agent canister is mounted on a sliding base and an elastic tube is installed at the nozzle of the extinguishing agent canister.

[0010] Preferably, a gear is rotatably connected to one side of the slide, and a swing arm is fixedly installed on the end face of the gear. The swing end of the swing arm is annular and sleeved on the elastic tube.

[0011] Preferably, the slide block is further provided with a rack that meshes with the gear and an electric push rod that is fixedly installed on its side for driving the rack to move.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, a camera is set up to monitor the situation inside the switch cabinet in real time, which facilitates a reaction the moment an open flame appears. The position of the fire extinguishing agent tank is adjusted by lifting the lifting rail and moving the sliding seat horizontally on the lifting rail. The fire extinguishing agent tank is used to accurately strike the open flame and extinguish the fire.

[0014] 2. In this utility model, by setting a counterweight, the weight of the slide and all the structures on the slide is equal to the weight of the counterweight, and the counterweight and the slide are symmetrically arranged, so as to ensure that the weight at both ends of the lifting rail is equal, thereby ensuring the stability of the lifting rail during the lifting process. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a high-temperature triggered fire extinguishing device is provided for this utility model;

[0016] Figure 2 This invention proposes a high-temperature triggered fire extinguishing device. Figure 1 A schematic diagram of the side view structure;

[0017] Figure 3 This utility model provides a structural schematic diagram of a sliding base for a high-temperature triggered fire extinguishing device;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0019] Legend: 1. Switch cabinet; 2. Vertical rail; 3. Camera; 4. Lifting rail; 5. Winch; 6. Chain; 7. Sprocket; 8. Servo motor; 9. Counterweight; 10. Elastic tube; 11. Swing arm; 12. Fire extinguishing agent tank; 13. Slide; 14. Electric push rod; 15. Rack; 16. Gear. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figures 1-4 As shown, a high-temperature triggered fire extinguishing device includes a fire extinguishing agent tank 12 and a switch cabinet 1 for housing the fire extinguishing agent tank 12. Multiple evenly distributed and rigidly connected winches 5 are installed at the top of the switch cabinet 1 near the cabinet door. The housings of the multiple winches 5 are rigidly connected, while the central shafts of the multiple winches 5 are rigidly connected via couplings. By installing an additional servo motor 8 inside the switch cabinet 1 to drive the rotation of the central shafts of the rigidly connected winches 5, the ropes of the multiple winches 5 can be simultaneously released or wound up.

[0023] Multiple winches 5 have ropes extending downwards and are fitted with lifting rails 4. Vertical rails 2, fixed inside the switch cabinet 1, are inserted into the left and right sides of the upper surface of the lifting rails 4. Both the winches 5 and the vertical rails 2 are detachably installed inside the switch cabinet 1 by bolts. In use, the lifting rails 4 can be lowered or raised along the surfaces of the two vertical rails 2 by releasing or rewinding the multiple ropes. Several cameras 3, distributed from top to bottom, are fixedly installed on one side of the vertical rails 2. The multiple cameras 3 can monitor the actual situation inside the switch cabinet 1 in real time. Images can be acquired through the cameras 3 at the initial stage of open flame. In addition, the cameras 3 in this solution can be replaced with infrared temperature sensors to detect temperature changes in various parts inside the switch cabinet 1. They can also detect open flame or electronic components red-hot due to temperature rise. Rapid observation: A slide 13 for placing the fire extinguishing agent canister 12 is inserted into the side of the lifting rail 4 facing away from the switch cabinet 1 door. Both ends of the upper surface of the lifting rail 4 are rotatably connected to sprockets 7. A servo motor 8 is fixedly installed on one side of the bottom of the lifting rail 4 to drive the sprockets 7 on the same side to rotate. A chain 6 connected to the slide 13 is meshed between the two sprockets 7. A camera 3 is also fixedly installed on the slide 13. When the lifting rail 4 is raised to the same height as the open flame, the servo motor 8 drives the sprockets 7 to rotate, so that the chain 6 rotates and drives the slide 13 to move horizontally. This allows the fire extinguishing agent canister 12 to move horizontally to the front of the open flame. The fire extinguishing agent can then be sprayed from the fire extinguishing agent canister 12 to accurately strike and extinguish the fire the moment it appears, ensuring the effective use of the fire extinguishing agent.

[0024] To ensure smooth lifting of the lifting rail 4, a counterweight 9 is inserted into the side of the lifting rail 4 facing the switch cabinet 1 door. The counterweight 9 is fixed to the surface of the chain 6. The counterweight 9 and the slide 13 are symmetrically arranged about the central axis of the lifting rail 4. The weight of the slide 13 and all its structures is equal to the weight of the counterweight 9. Furthermore, the counterweight 9 and the slide 13 are symmetrically arranged, thus ensuring that the weight at both ends of the lifting rail 4 is equal, thereby ensuring the smoothness of the lifting rail 4 during lifting. The counterweight 9 and the slide 13 are distributed on both sides of the chain 6, so as the chain 6 rotates, the slide 13 and the counterweight 9 can move relative to or towards each other, and the moving speed is the same.

[0025] To further ensure the fire extinguishing effect: the fire extinguishing agent tank 12 is fitted on the slide 13 and an elastic tube 10 is installed at the nozzle of the fire extinguishing agent tank 12. A gear 16 is rotatably connected to one side of the slide 13. A swing arm 11 is fixedly installed on the end face of the gear 16. The swing end of the swing arm 11 is annular and fitted on the elastic tube 10. A rack 15 that meshes with the gear 16 is also inserted into the side of the slide 13, and an electric push rod 14 for driving the rack 15 to move is fixedly installed. In use, the rack 15 is moved by extending and retracting the electric push rod 14, which in turn drives the swing arm 11 to rotate and swing, so that one end of the elastic tube 10 can swing up and down to adjust the angle of the fire extinguishing agent spray.

[0026] The working principle is as follows: several cameras 3 monitor the electronic components in the switch cabinet 1 in real time. When one of the electronic components catches fire due to a malfunction, the camera 3 detects the moment the open flame appears. Based on the location of the open flame, the lifting rail 4 is raised or lowered by releasing or rewinding the rope in the winch 5 to adjust the height of the fire extinguishing agent tank 12. The horizontal position of the slide 13 and the fire extinguishing agent tank 12 is adjusted by rotating the chain 6. Finally, the angle and orientation of the elastic tube 10 are adjusted by swinging the swing arm 11 up and down. The fire extinguishing agent tank 12 can then spray fire extinguishing agent to achieve real-time and precise suppression of the initial open flame.

[0027] The wiring diagrams for the camera 3, servo motor 8, winch 5, and electric push rod 14 in this utility model belong to this invention.

[0028] The working principle of the camera 3, servo motor 8, winch 5 and electric push rod 14 are common knowledge in the field and are known technologies. The appropriate model is selected according to the actual use. Therefore, the control method and wiring layout of the camera 3, servo motor 8, winch 5 and electric push rod 14 will not be explained in detail.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-temperature triggered fire extinguishing device, characterized by: The utility model provides a kind of switch cabinet (1) and extinguishing agent tank (12) for setting extinguishing agent tank (12), the switch cabinet (1) is installed with multiple evenly distributed and rigidly connected capstans (5) in top near cabinet door, multiple the hinge rope on the capstan (5) extends downward and is installed with lifting rail (4), the lifting rail (4) upper surface left and right side position plug-in has the vertical rail (2) fixed in switch cabinet (1), the vertical rail (2) one side fixed mounting has several from top to bottom distribution camera (3), the lifting rail (4) back to the side of switch cabinet (1) cabinet door plug-in has the slide (13) for placing extinguishing agent tank (12), the lifting rail (4) upper surface both ends position are rotatably connected with sprocket (7), two the sprocket (7) between meshing connection has chain (6) connected with slide (13), camera (3) is also fixedly installed on the slide (13).

2. The high-temperature triggered fire suppression device of claim 1, wherein: The capstan (5) and vertical rail (2) are detachably installed in the switch cabinet (1) by bolts.

3. The high temperature triggered fire extinguishing device of claim 1, wherein: The lifting rail (4) one side of bottom edge is fixedly installed with servo motor (8) for driving the rotation of the sprocket (7) in the same side direction.

4. The high temperature triggered fire extinguishing device of claim 1, wherein: The lifting rail (4) is inserted with counterweight (9) on the side towards the cabinet door of switch cabinet (1), the counterweight (9) is fixed on the surface of chain (6), and the counterweight (9) and slide (13) are symmetrically arranged about the central axis of the lifting rail (4).

5. The high temperature triggered fire extinguishing device of claim 1, wherein: The extinguishing agent tank (12) is sleeved on the slide (13), and an elastic tube (10) is installed at the nozzle of the extinguishing agent tank (12).

6. The high-temperature triggered fire suppression device of claim 5, wherein: The side of the slide (13) is rotatably connected with a gear (16), the end surface of the gear (16) is fixedly installed with a swing arm (11), the swing end of the swing arm (11) is annular and sleeved on the elastic tube (10).

7. The high-temperature triggered fire suppression device of claim 6, wherein: The side of the slide (13) is also inserted with a rack (15) meshingly connected with the gear (16) and an electric push rod (14) fixedly installed for driving the movement of the rack (15).

Citation Information

Patent Citations

  • Automatic fire extinguishing device for switch cabinet

    CN222265990U