Mechanical trigger type active fire extinguishing power distribution cabinet

Abstract

The invention discloses a mechanical trigger type active fire extinguishing power distribution cabinet, and relates to the technical field of power distribution cabinets, the power distribution cabinet comprises a cabinet body, a mounting rack and a clamping rail, the mounting rack comprises two vertical plates fixedly connected in the cabinet body and a plurality of transverse plates fixedly connected between the two vertical plates, and the clamping rail is mounted on the mounting rack through screws. The clamping rails are used for mounting electronic elements; the fire extinguisher is provided with an execution component, and the execution component is used for controlling the fire extinguisher to work; the lifting component is used for controlling the fire extinguisher to descend. The multiple sensing parts are arranged to correspond to the multiple areas of the mounting frame, real-time monitoring of the temperature conditions of all the areas is achieved, targeted fire extinguishing operation is achieved, gravitational potential energy is used as a power source, core actions such as lifting, translation and spraying triggering do not need electric power support, and even if a circuit is completely damaged due to a fire disaster, the fire extinguishing effect is good. And the fire extinguishing device can still accurately move to a fire point through a mechanical structure to complete fire extinguishing.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, specifically to a mechanically triggered active fire extinguishing power distribution cabinet. Background Technology

[0002] Power distribution cabinets are key equipment in power systems used to distribute, control, and protect electrical energy. They typically contain electrical components such as circuit breakers, contactors, relays, meters, and various terminals. With the continuous growth of power load and the increasing integration of equipment, distribution cabinets are prone to localized high temperatures or even open flames due to problems such as aging lines, poor contact, overload, or short circuits during long-term high-load operation, posing a significant fire risk.

[0003] If a fire breaks out in a distribution cabinet and is not extinguished in time, it will not only spread rapidly and destroy the equipment inside the cabinet, but may also trigger a chain of power outages, causing significant economic losses and safety threats. Currently, common fire extinguishing methods for distribution cabinets mainly include fixed gas extinguishing systems and dry powder automatic spraying devices. These methods mostly adopt a comprehensive fire extinguishing strategy. However, for large distribution cabinets with complex internal structures and clear partitions, although comprehensive spraying of extinguishing agents can control the fire, it will also cause secondary damage such as pollution, corrosion or electrical short circuits to normal components that have not caught fire. It is like "wielding a sledgehammer to swat a fly," damaging intact equipment while extinguishing the fire source, reducing the reliability and recovery efficiency of the system.

[0004] To address the aforementioned problems, some attempts have been made to improve the existing technology. For example, Chinese Patent CN117559239A proposes a distribution cabinet with fire extinguishing protection function. This device "includes a distribution cabinet body, and further includes a fire extinguishing protection device, a power device, a sensing device, and a control device disposed within the distribution cabinet body. After the sensing device detects a fire within the distribution cabinet body, it transmits a fire signal to the control device. The control device controls the operation of the fire extinguishing protection device and the power device, so that the power device drives the fire extinguishing protection device to move to the fire location to extinguish the fire. This distribution cabinet with fire extinguishing protection function, by setting a fire extinguishing protection device and a power device in the distribution cabinet body, both of which are connected to the sensing device, uses the sensing device to detect and identify the fire point. After that, the power device moves the fire extinguishing protection device to the fire point, and the fire extinguishing protection device performs a small-scale concentrated fire extinguishing operation at the fire point location, minimizing the impact on surrounding or other electrical components far away from the fire point."

[0005] However, such solutions typically rely on electric power to perform a series of actions, including fire monitoring, device movement, and fire extinguishing triggering. In actual fire scenarios, the internal circuitry of the distribution cabinet may be damaged, lose power, or experience control system failures due to the fire, causing the power-dependent fire extinguishing system to fail to start normally or to fail midway, resulting in insufficient reliability. Summary of the Invention

[0006] The purpose of this invention is to provide a mechanically triggered active fire extinguishing power distribution cabinet, which is an active fire extinguishing system that can operate accurately without relying on power triggering and can still reliably and accurately complete the fire extinguishing task in the event of power interruption or system abnormality.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A mechanically triggered active fire extinguishing power distribution cabinet includes a cabinet body, a mounting frame, and a rail. The mounting frame includes two upright plates fixedly connected inside the cabinet body and several horizontal plates fixedly connected between the two upright plates. The rail is mounted on the mounting frame with screws and is used to mount electronic components. The cabinet also includes: a fire extinguisher with an actuator mounted on it, which controls the operation of the fire extinguisher; a lifting component for controlling the extinguisher's descent; multiple sensing components, each corresponding to a monitoring point on the mounting frame, for monitoring abnormal high temperatures and triggering the lifting component to operate until the fire extinguisher reaches the abnormal temperature position when an abnormal high temperature is detected; a translation component for controlling the fire extinguisher's nozzle to move horizontally to the abnormal temperature position; the lifting component includes a slide rail with a slider slidably connected to its exterior, a lifting frame fixedly connected to the slider, the fire extinguisher fixedly connected to the lifting frame, and a counterweight on the lifting frame; a locking structure is fixedly connected to the upright plates to secure the lifting frame to the upright plates, and the sensing component unlocks the locking structure when an abnormal high temperature is detected.

[0008] By adopting the above technical solution, multiple sensing components are set up to correspond to multiple areas of the mounting frame, enabling real-time monitoring of the temperature in each area. When an abnormally high temperature occurs in a certain area, the fixing of the lifting component is released, allowing the lifting frame to move downwards under gravity. After descending to the height of the abnormal temperature, the translation component controls the nozzle to move horizontally, and the movement position is also limited by the triggered sensing components. After moving to the abnormal temperature position, the actuator is controlled to pull out the safety pin of the fire extinguisher and press to spray dry powder, thereby achieving targeted fire extinguishing operations, improving the fire extinguishing effect, and reducing the impact on other components.

[0009] A further improvement of the technical solution of the present invention is that: the locking structure includes a piston cylinder fixedly connected to the horizontal plate, a piston plate slidably connected between the inner walls of the piston cylinder, a locking block slidably connected to one side of the piston cylinder, the locking block being fixedly connected to the piston plate, a spring being fixedly connected between the piston plate and the inner wall of the piston cylinder, a control tube being provided on the piston cylinder, the control tube being connected to the air inlet pipe, a valve being provided on the piston cylinder to communicate with the external environment, and a locking groove being provided on the lifting frame to cooperate with the locking block. Using the above technical solution, negative pressure is provided to the inside of piston cylinder 1 through the control pipe, causing piston plate 1 to move towards the side of spring 1, squeezing spring 1 and driving the locking block to leave the locking slot. After leaving, the lifting frame is unrestrained in the vertical direction, and can move downward under its own weight and the weight of the fire extinguisher and counterweight. When resetting, by opening the above valve, external air can enter piston cylinder 1, and piston plate 1 will reset under the rebound of spring 1.

[0010] A further improvement of the technical solution of the present invention is that: the sensing component includes a piston cylinder two, which is fixedly connected to the mounting bracket. A piston plate two is slidably connected between the inner walls of the piston cylinder two. Each piston cylinder two is provided with an air inlet pipe and an air outlet pipe. A one-way valve is installed inside the air inlet pipe and the air outlet pipe. The air inlet pipe is connected to the control pipe. A tension spring is fixedly connected between the piston plate two and one side of the inner wall of the piston cylinder two. Several thermal feedback structures are provided on the side of the mounting bracket away from the rail. The thermal feedback structures are used to keep the piston plate two fixed and release the piston plate two when abnormal high temperature occurs. A limit rod is fixedly connected on the side of the piston plate two away from the tension spring. The limit rod extends to the outside of the piston cylinder two and is slidably connected to the piston cylinder two.

[0011] To facilitate the release of piston plate one, the above-mentioned technical solution incorporates a sensing component. Under normal conditions, the piston plate two is kept fixed using a thermal feedback structure, and the tension spring is in a stretched state. When an abnormal temperature occurs, the sensing component releases piston plate two, causing the tension spring to rebound and move piston plate two closer to the tension spring. This creates a negative pressure inside piston cylinder one. At this time, the one-way valve inside the air inlet pipe is open, while the one-way valve inside the air outlet pipe is blocked. The negative pressure is transmitted to the control pipe through the air inlet pipe, thereby creating a negative pressure inside piston cylinder one and unlocking the locking structure. During this process, the limiting rod also moves, extending relative to piston cylinder two to limit the descent position of the lifting frame and also to limit the translation component.

[0012] A further improvement of the technical solution of the present invention is as follows: a speed limiting cylinder is fixedly connected to the bottom of the lifting frame, a piston plate three is slidably connected between the inner walls of the speed limiting cylinder, a return spring is fixedly connected between the piston plate three and the speed limiting cylinder, a square rod is fixedly connected to the side of the piston plate three away from the return spring, the square rod extends through to the outside of the speed limiting cylinder and is fixedly connected to an arc-shaped block, the square rod is slidably connected to the speed limiting cylinder, a number of deceleration grooves are equidistantly opened on the vertical plate along the vertical direction, the arc surface of the arc-shaped block is located inside the deceleration groove, a flow limiting pipe communicating with the external environment is provided on the speed limiting cylinder, and the corners of the deceleration groove are all rounded.

[0013] Using the above technical solution, when the arc-shaped block's curved surface contacts the corner of the deceleration groove, the arc-shaped block moves towards the side closer to the speed-limiting cylinder under the squeezing action of the deceleration groove and the curved surface. This movement is caused by the square rod driving the piston plate three to move, squeezing the return spring, and simultaneously generating positive pressure inside the speed-limiting cylinder. This air pressure is slowly released outward through the flow-limiting tube, preventing the piston plate three from moving quickly. Instead, it is hindered by the air pressure, thus slowing down the retraction speed of the square rod and the arc-shaped block. This also reduces the descent speed of the lifting frame, ensuring that the lifting frame always descends at a low speed, avoiding impact caused by excessive speed and preventing damage to the device.

[0014] A further improvement of the technical solution of the present invention is as follows: the translation component includes two fixed plates symmetrically fixedly connected to the lifting frame, each fixed plate having a rotating rod rotatably connected to it. The two rotating rods are connected by a sprocket and a chain drive, and a linkage block is fixedly connected to each chain. The nozzle of the fire extinguisher is fixedly connected to the linkage block. A coil is fixedly connected to the outside of the rotating rod, and a rope is wound on the coil. One end of the rope is fixedly connected to the coil, and the other end is fixedly connected to a counterweight. An L-shaped plate is fixedly connected to one side of the lifting frame. A linkage rod is slidably connected to the bottom of the L-shaped plate. The top of the linkage rod extends above the L-shaped plate and is fixedly connected to a baffle. A pressure plate is fixedly connected to the bottom of the linkage rod. A spring is fitted around the outside of the linkage rod and below the lifting frame. A blocking block is fixedly connected to the outside of the rotating rod. A handle is fixedly connected to the outside of the rotating rod, and a pressure frame is fixedly connected to the outside of the linkage rod.

[0015] Using the above technical solution, during the descent of the lifting frame, the pressure frame will contact the limit rod in advance. As the lifting frame descends, the pressure frame is pushed upward by the limit rod, and at the same time, the pressure plate compresses the second spring, which drives the baffle to move upward through the linkage rod until the baffle disengages from the blocking block. At this time, the rotating rod can rotate normally, the counterweight slides downward, and drives the coil to rotate through the rope, which in turn drives the rotating rod to rotate. Both ends of the rotating rod are equipped with sprockets, and the sprockets on different rotating rods correspond one-to-one and are connected by chain drive. The rotation of the rotating rod drives the sprockets to rotate, and the chain moves accordingly, driving the linkage block to move until one of the linkage blocks contacts the limit rod. The linkage block will be blocked and cannot continue to move. Correspondingly, the rotating rod stops rotating, and the linkage block on the other side cannot move either. At this time, the nozzle position of the fire extinguisher is the abnormally high temperature position.

[0016] A further improvement of the technical solution of the present invention is that: a number of through slots are provided on the horizontal plate, and a number of heat-conducting grooves corresponding to the through slots are also provided on the rail. One end of the piston cylinder is set as a copper plate, and a heat-conducting component is connected to the side of the copper plate by screws. The heat-conducting component passes through the through slots and the heat-conducting grooves in sequence and contacts the rail. The piston cylinder is riveted to the horizontal plate by the heat-conducting component and screws. Both the rail and the horizontal plate are made of heat-insulating material.

[0017] By adopting the above technical solution, both the rail and the cross plate are set as heat-insulating frame structures, and heat-conducting components are set at the heat collection points to transfer heat. The heat transfer between adjacent heat-conducting components is blocked by the heat-insulating frame structure and cannot be transferred quickly, thereby avoiding the situation where the nearby feedback structure will malfunction due to heat conduction.

[0018] A further improvement of the technical solution of the present invention is as follows: the execution component includes a mounting plate fixedly connected to the inner side of the lifting frame, a sliding column slidably connected to the mounting plate, one end of the sliding column being fixedly connected to the safety pin of the fire extinguisher, and the other end penetrating to the other side of the mounting plate and fixedly connected to a sling; a wheel frame is fixedly connected to the top of the inner wall of the cabinet, and two guide wheels are rotatably connected between the adjacent sides of the wheel frame; the sling passes over the guide wheel located above and is fixedly connected to the top of the cabinet; a slide is fixedly connected to the top of the lifting frame, a fixing rod is fixedly connected to the side of the slide near the fire extinguisher handle, a trigger block is slidably connected inside the slide, a trigger spring is fixedly connected between the trigger block and the bottom of the inner wall of the slide, a pressing column and an auxiliary block are fixedly connected to opposite sides of the trigger block respectively, a pressure rod is fixedly connected to the bottom of the auxiliary block, a delay cylinder is fixedly connected to the top of the lifting frame, a piston plate four is slidably connected between the inner walls of the delay cylinder, the top of the piston plate four is fixedly connected to the pressure rod, a locking rod is fixedly connected to the middle of the pressure rod, the locking rod is in contact with the sliding column, and the delay cylinder is connected to the external environment through a delay tube.

[0019] Using the above technical solution, when a fire occurs, the lifting frame moves downward, which in turn moves the fire extinguisher downward. The safety pin and sliding rod of the fire extinguisher are pulled out by the sling, so that the sliding rod no longer obstructs the locking rod. The trigger block slides downward under the rebound of the trigger spring, which drives the pressing rod to move downward synchronously, thereby pressing the handle of the fire extinguisher and realizing automatic spraying of dry powder.

[0020] A further improvement of the technical solution of the present invention is that the thermal feedback structure includes a thermally fused break block, which is bonded between the piston plate and the copper plate.

[0021] Using the above technical solution, for the sake of action speed, the thermal feedback component uses a thermal fusion block to bond the piston plate two to the copper plate. When an abnormally high temperature occurs, the thermal fusion block melts and separates the piston plate two from the copper plate, allowing the piston plate two to move under the action of the tension spring, resulting in rapid action and improving safety performance.

[0022] A further improvement of the technical solution of the present invention is as follows: the thermal feedback structure includes a retainer fixedly connected to one side of the piston plate 2, a wedge block slidably connected between the inner walls of the retainer, a spring 3 fixedly connected between the wedge block and one side of the inner wall of the retainer, a retaining ring for cooperating with the wedge block fixedly connected to the part of the copper plate side wall located inside the piston cylinder 2; a trigger seat fixedly connected to the side of the copper plate near the retaining ring, a strip groove opened on both sides of the trigger seat, a push block slidably connected between the inner walls of the trigger seat, protrusions symmetrically arranged on both sides of the push block, and the protrusions extending to the outside of the trigger seat through the strip grooves, a slide rod fixedly connected to one side of the retaining ring, the slide rod passing through the protrusion and slidably connected to the protrusion, a spring 4 sleeved on the outside of the slide rod, and an expansion block fixedly connected to the part of the copper plate located inside the trigger seat.

[0023] With the above technical solution, from the perspective of reusability, the thermal feedback component can be triggered by the expansion block and can be manually reset after the temperature returns to normal, thereby achieving reuse and aiming to improve service life.

[0024] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: 1. This invention provides a mechanically triggered active fire extinguishing power distribution cabinet. By setting multiple sensing components to correspond to multiple areas of the mounting bracket, it realizes real-time monitoring of the temperature of each area. When an abnormally high temperature occurs in a certain area, the fire extinguisher is activated to that area. The actuator pulls out the safety pin of the fire extinguisher and presses it to spray dry powder, thereby realizing targeted fire extinguishing operation, improving the fire extinguishing effect, and reducing the impact on other components.

[0025] 2. This invention provides a mechanically triggered active fire extinguishing power distribution cabinet. By setting up a gravity-driven mechanical linkage structure, specifically utilizing gravitational potential energy as a power source, the core actions such as lifting, translation, and spray triggering do not require electrical support. Even if the circuit is completely destroyed by a fire, it can still rely on the mechanical structure to accurately move to the fire point and complete the fire extinguishing. At the same time, the cooperation between the sensing component and the limiting structure can adapt to the new fire point after the component position is adjusted, avoiding the failure problem of the fixed spray path after the layout is changed, and ensuring that it can still reliably and accurately play a fire extinguishing role in complex fire situations.

[0026] 3. This invention provides a mechanically triggered active fire extinguishing power distribution cabinet. By setting a speed-limiting structure for the lifting frame, when the arc-shaped block's arc surface contacts the corner of the deceleration groove, the arc-shaped block moves towards the side closer to the speed-limiting cylinder under the squeezing action of the deceleration groove and the arc surface. This movement is driven by the square rod to move the piston plate three, squeezing the return spring and simultaneously generating positive pressure inside the speed-limiting cylinder. The aforementioned air pressure is slowly released outward through the flow-limiting tube, preventing the piston plate three from moving quickly. Instead, it is hindered by the air pressure, thus slowing down the retraction speed of the square rod and the arc-shaped block. This also reduces the descent speed of the lifting frame, ensuring that the lifting frame always descends at a low speed, avoiding impact caused by excessive speed and preventing damage to the device.

[0027] 4. This invention provides a mechanically triggered active fire extinguishing power distribution cabinet. By setting both the rails and the cross plates as heat-insulating frame structures, and setting heat-conducting components at the heat collection points to transfer heat, the heat transfer between adjacent heat-conducting components is blocked by the aforementioned heat-insulating frame structure and cannot be transferred quickly, thereby avoiding the situation where the nearby feedback structure malfunctions due to heat conduction.

[0028] 5. This invention provides a mechanically triggered active fire extinguishing power distribution cabinet. By setting the thermal feedback structure as a heat-unlocking type of buckle, the thermal feedback component can be triggered by the expansion block and can be manually reset after the temperature returns to normal, thereby achieving repeated use and improving service life. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a schematic diagram of the disassembled structure of the present invention; Figure 3 This is a schematic diagram of the lifting component of the present invention; Figure 4 This is a schematic diagram of the overall structure of the translation component of the present invention; Figure 5 This is a schematic diagram of the structure of the execution component of the present invention; Figure 6 This is a schematic diagram of the installation structure of the piston cylinder and the speed limiting cylinder of the present invention; Figure 7 This is a cross-sectional view of the piston cylinder of the present invention. Figure 8 This is a cross-sectional view of the speed limiter cylinder of the present invention; Figure 9 This is a schematic diagram of the installation structure of Embodiment 1 of the thermal feedback structure of the present invention; Figure 10 This is a schematic diagram of the installation structure of Embodiment 2 of the thermal feedback structure of the present invention; Figure 11 This is a schematic diagram of the split structure of Embodiment 2 of the thermal feedback structure of the present invention; Figure 12 This is a cross-sectional view of Embodiment 2 of the thermal feedback structure of the present invention; Figure 13 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 14 For the present invention Figure 10 Enlarged view at point B in the middle; Figure 15 For the present invention Figure 11 Enlarged view at point C; Figure 16 This is a partial structural schematic diagram of the translation component of the present invention.

[0031] In the diagram: 1. Cabinet; 2. Vertical panel; 3. Horizontal panel; 4. Slide rail; 5. Slider; 6. Lifting frame; 7. Fixed plate; 8. Rotating rod; 9. Fire extinguisher; 10. Cable reel; 11. Counterweight; 12. Linkage block; 13. L-shaped plate; 14. Linkage rod; 15. Baffle; 16. Pressure plate; 17. Spring II; 18. Pressure frame; 19. Blocking block; 20. Retarding groove; 21. Piston cylinder I; 22. Speed ​​limiter; 23. Piston plate I; 24. Locking block; 25. Control tube; 26. Spring I; 27. Return spring; 28. Flow limiter; 29. ​​Piston plate III; 30. Square rod; 31. Arc-shaped block; 32. Locking rail; 33. Piston cylinder II; 34. Piston Plate II; 35. Limiting Rod; 36. Tension Spring; 37. Inlet Pipe; 38. Outlet Pipe; 39. Socket; 40. Spring III; 41. Wedge Block; 42. Copper Plate; 43. Trigger Seat; 44. Snap Ring; 45. Spring IV; 46. Push Block; 47. Expansion Block; 48. Heat Conducting Component; 49. Thermal Fusion Block; 50. Fixing Rod; 51. Mounting Plate; 52. Sliding Column; 53. Guide Wheel; 54. Sling; 56. Carriage; 57. Sliding Rod; 58. Trigger Block; 59. Trigger Spring; 60. Pressing Column; 61. Auxiliary Block; 62. Pressure Rod; 63. Locking Rod; 64. Delay Cylinder; 65. Piston Plate IV; 66. Delay Tube. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the embodiments. Example 1

[0033] like Figure 1 , Figure 2 and Figure 9 As shown, this invention provides a mechanically triggered active fire extinguishing power distribution cabinet, including a cabinet body 1, a mounting frame, and a rail 32. The mounting frame includes two upright plates 2 fixedly connected inside the cabinet body 1 and several horizontal plates 3 fixedly connected between the two upright plates 2. The rail 32 is mounted on the mounting frame with screws and is used to mount electronic components. The cabinet also includes: a fire extinguisher 9, on which an actuating component is mounted for controlling the operation of the fire extinguisher 9; a lifting component for controlling the descent of the fire extinguisher 9; and multiple sensing components, each corresponding to a monitoring point on the mounting frame. The device is used to monitor abnormal high temperatures and trigger the lifting mechanism to operate when an abnormal high temperature occurs until the fire extinguisher 9 reaches the height position of the abnormal temperature; the translation mechanism is used to control the nozzle of the fire extinguisher 9 to move horizontally to the position of the abnormal temperature; the lifting mechanism includes a slide rail 4, a slider 5 is slidably connected to the outside of the slide rail 4, a lifting frame 6 is fixedly connected to the slider 5, the fire extinguisher 9 is fixedly connected to the lifting frame 6, and a counterweight block 11 is also provided on the lifting frame 6; a locking structure is fixedly connected to the upright plate 2, the locking structure is used to fix the lifting frame 6 to the upright plate 2, and the sensing component controls the locking structure to unlock when an abnormal high temperature is detected.

[0034] In this embodiment, multiple sensing components are set to correspond to multiple areas of the mounting frame, enabling real-time monitoring of the temperature in each area. When an abnormally high temperature occurs in a certain area, the lifting component is released, allowing the lifting frame 6 to move downwards under gravity. This movement is restricted by the slider 5 and the slide rail 4, resulting in a linear motion. The movement position is limited by the triggered sensing components. After descending to the abnormal temperature height, the nozzle is controlled to move horizontally using the translation component, and its movement position is also limited by the triggered sensing components. After moving to the abnormal temperature position, the execution component is controlled to pull out the safety pin of the fire extinguisher 9 and press to spray dry powder, thereby achieving targeted fire extinguishing operations, improving the fire extinguishing effect, and reducing the impact on other components.

[0035] In mechanically triggered active fire-extinguishing power distribution cabinets, a prominent problem when a fire occurs is that the fire may first burn the power lines or control modules inside the cabinet, causing the fire extinguisher's moving mechanism and spray triggering device, which rely on electric power, to fail and be unable to complete the action of aiming at the fire point; at the same time, the components inside the cabinet may be repositioned due to functional upgrades, and if the spray path of the fire extinguishing device is fixed, it will be difficult to adapt to the dynamically changing location of the fire point, thus missing the best opportunity to extinguish the fire.

[0036] The above problems are effectively solved by the gravity-driven mechanical linkage structure in this solution: using gravitational potential energy as a power source, the core actions such as lifting, translation and spray triggering do not require power support. Even if the circuit is completely destroyed by fire, it can still move accurately to the fire point and complete the fire extinguishing by relying on the mechanical structure. At the same time, the cooperation between the sensing component and the limiting structure can adapt to the new fire point after the component position is adjusted, avoiding the failure problem of the fixed spray path after the layout is changed, and ensuring that it can still play a reliable and accurate fire extinguishing role in complex fire situations.

[0037] Specifically, the aforementioned lifting components are gravity-driven, thus eliminating the need for additional power. This solves the problem of the components being unable to operate due to circuit damage during a fire. The fire extinguisher 9 is detachably fixed to the lifting frame 6 (e.g., by connectors and screws). Initially, the lifting frame 6 cannot move downwards due to the locking structure and slots. When the sensing component at a certain point detects a fire, it activates, unlocking the locking structure. This allows the lifting frame 6, the fire extinguisher 9, and the counterweight 11 to move downwards synchronously under gravity. After activation, the movement area of ​​the lifting and translation components is limited, ensuring that their final positions are near the ignition point. Example 2

[0038] like Figure 6 , Figure 7 and Figure 13 As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the engaging structure includes a piston cylinder 21 fixedly connected to the horizontal plate 3, a piston plate 23 slidably connected between the inner walls of the piston cylinder 21, a locking block 24 slidably connected to one side of the piston cylinder 21, the locking block 24 being fixedly connected to the piston plate 23, a spring 26 being fixedly connected between the piston plate 23 and the inner wall of the piston cylinder 21, a control pipe 25 being provided on the piston cylinder 21, the control pipe 25 being connected to the air inlet pipe 37, a valve (not shown in the figure) connected to the external environment being provided on the piston cylinder 21, and a slot for cooperating with the locking block 24 being provided on the lifting frame 6; Initially, the locking block 24 is engaged in the slot, preventing the lifting frame 6 from moving up and down. In this embodiment, negative pressure is provided to the piston cylinder 21 through the control pipe 25, causing the piston plate 23 to move towards the side closer to the spring 26, compressing the spring 26 and driving the locking block 24 out of the slot. After leaving the slot, the lifting frame 6 is no longer restrained in the vertical direction, and can move downward under its own weight, as well as the weight of the fire extinguisher 9 and the counterweight 11. When resetting, by opening the valve, external air can enter the piston cylinder 21, and the piston plate 23 resets under the rebound of the spring 26.

[0039] like Figure 10 , Figure 12and Figure 14 As shown, preferably, the sensing component includes a piston cylinder 33, which is fixedly connected to the mounting bracket. A piston plate 34 is slidably connected between the inner walls of the piston cylinder 33. Each piston cylinder 33 is provided with an air inlet pipe 37 and an air outlet pipe 38. A one-way valve is installed inside the air inlet pipe 37 and the air outlet pipe 38. The air inlet pipe 37 is connected to the control pipe 25. A tension spring 36 is fixedly connected between the piston plate 34 and one side of the inner wall of the piston cylinder 33. Several thermal feedback structures are provided on the side of the mounting bracket away from the rail 32. The thermal feedback structures are used to keep the piston plate 34 fixed and release the piston plate 34 when an abnormal high temperature occurs. A limit rod 35 is fixedly connected to the side of the piston plate 34 away from the tension spring 36. The limit rod 35 extends to the outside of the piston cylinder 33 and is slidably connected to the piston cylinder 33.

[0040] It should be noted that the reason why the locking structure in the above scheme is pneumatic is because there are multiple sensing components, which are widely distributed, and any sensing component at any point can trigger the locking structure. The pneumatic transmission can be achieved simply by connecting them through pipes, which simplifies the mechanical structure. In this embodiment, to facilitate the release of the piston plate 23, a sensing component is provided. Under normal conditions, the piston plate 34 is fixed using a thermal feedback structure, and the tension spring 36 is in a stretched state. When an abnormal temperature occurs, the sensing component releases the piston plate 34, causing the tension spring 36 to rebound and move the piston plate 34 closer to the tension spring 36. This generates negative pressure inside the piston cylinder 21. At this time, the one-way valve inside the air inlet pipe 37 is open, and the one-way valve inside the air outlet pipe 38 is blocked. The negative pressure is transmitted to the control pipe 25 through the air inlet pipe 37, thereby creating negative pressure inside the piston cylinder 21 and unlocking the locking structure. During the above process, the limiting rod 35 is also moved, extending relative to the piston cylinder 33 to limit the descent position of the lifting frame 6 and also to limit the translation component.

[0041] like Figure 6 and Figure 8 As shown, preferably, a speed limiting cylinder 22 is fixedly connected to the bottom of the lifting frame 6. A piston plate 39 is slidably connected between the inner walls of the speed limiting cylinder 22. A return spring 27 is fixedly connected between the piston plate 39 and the speed limiting cylinder 22. A square rod 30 is fixedly connected to the side of the piston plate 39 away from the return spring 27. The square rod 30 extends to the outside of the speed limiting cylinder 22 and is fixedly connected to an arc-shaped block 31. The square rod 30 is slidably connected to the speed limiting cylinder 22. Several deceleration grooves 20 are equidistantly opened along the vertical direction on the upright plate 2. The arc surface of the arc-shaped block 31 is located inside the deceleration groove 20. A flow limiting pipe 28 communicating with the external environment is provided on the speed limiting cylinder 22. The corners of the deceleration grooves 20 are all rounded.

[0042] As the lifting frame 6 descends by gravity during the above process, and the fire extinguisher 9 and related transmission structures are all installed on the lifting frame 6, the speed gradually increases during the descent, which causes a certain impact when the lifting frame 6 descends to the limit rod 35. Especially when abnormal high temperature occurs in the area near the bottom, the impact is greater because the lifting frame 6 needs to descend a longer distance, which can easily lead to damage to the device. In this embodiment, when the return spring 27 is in its normal state, the arc-shaped part of the arc-shaped block 31 is in the deceleration groove 20. During the descent of the lifting frame 6, when the arc-shaped block 31 is in the deceleration groove 20, the lifting frame 6 moves downward normally and gradually accelerates until the arc-shaped part of the arc-shaped block 31 contacts the edge of the deceleration groove 20. At this time, the arc-shaped block 31 moves towards the side closer to the speed limiting cylinder 22 under the squeezing cooperation of the deceleration groove 20 and the arc-shaped part, and drives the piston plate 29 to move through the square rod 30, squeezing the return spring 27. 7. Simultaneously, positive pressure is generated inside the speed limiting cylinder 22. This air pressure is slowly released outward through the flow limiting pipe 28, preventing the piston plate 29 from moving rapidly. Instead, the piston plate 29 is hindered by the air pressure, thus slowing down the retraction speed of the square rod 30 and the arc-shaped block 31, and reducing the descent speed of the lifting frame 6. When the arc-shaped block 31 contacts the solid part of the vertical plate 2, the arc-shaped part of the lifting frame 6 rubs against the vertical plate 2 as it descends. This process results in a lower descent speed until the arc-shaped block 31 re-enters the deceleration groove 20. Through the above design, the lifting frame 6 always descends at a lower speed than free fall, avoiding impact damage to the device due to excessive speed.

[0043] like Figure 4 , Figure 13 and Figure 16As shown, preferably, the translation component includes two fixed plates 7 symmetrically fixedly connected to the lifting frame 6. A rotating rod 8 is rotatably connected to each of the two fixed plates 7. The two rotating rods 8 are connected by a sprocket and a chain drive, and a linkage block 12 is fixedly connected to each chain. The nozzle of the fire extinguisher 9 is fixedly connected to the linkage block 12. A coil 10 is fixedly connected to the outside of the rotating rod 8, and a rope is wound on the coil 10. One end of the rope is fixedly connected to the coil 10, and the other end is fixedly connected to a counterweight 11. An L-shaped plate 13 is fixedly connected to one side of the lifting frame 6. A linkage rod 14 is slidably connected to the bottom of the L-shaped plate 13. The top of the linkage rod 14 extends above the L-shaped plate 13 and is fixedly connected to a baffle 15. The bottom of the linkage rod 14 is fixedly connected to... A pressure plate 16 is attached. A spring 17 is fitted around the outside of the linkage rod 14 and below the lifting frame 6. A blocking block 19 is fixedly connected to the outside of the rotating rod 8. A handle (not shown in the figure) is fixedly connected to the outside of the rotating rod 8. During reset, the handle can be rotated in the opposite direction to rotate the rotating rod 8, causing the rope to wind up and the counterweight 11 to reset until it returns to its initial position. At this time, the lifting frame 6 is lifted, and the baffle 15 and the linkage rod 14 are reset by the rebound of the spring 17, so that the rotating rod 8 cannot rotate. The lifting frame 6 is lifted until the locking block 24 is aligned with the locking groove. In this state, the valve is opened to reset the piston plate 23, and the locking block 24 is then locked into the locking groove, thus completing the reset. A pressure frame 18 is fixedly connected to the outside of the linkage rod 14.

[0044] Under normal conditions (when linkage block 12 is not in motion), the blocking block 19 is in contact with the baffle 15, and the rotating rod 8 cannot rotate due to the obstruction of the baffle 15. The bottom of the pressure frame 18 is below the lifting frame 6. In this embodiment, during the descent of the lifting frame 6, the pressure frame 18 will contact the limiting rod 35 in advance, and the pressure frame 18 will be pushed upward by the limiting rod 35 as the lifting frame 6 descends. At the same time, the pressure plate 16 compresses the second spring 17, and drives the baffle 15 to move upward through the linkage rod 14 until the baffle 15 disengages from the blocking block 19. At this time, the rotating rod 8 can rotate normally, and the counterweight 11 slides downward through the rope. The rotating rod 8 rotates by rotating the reel 10 (unwinding), which in turn rotates the rotating rod 8. Both ends of the rotating rod 8 are equipped with sprockets, and the sprockets on different rotating rods 8 correspond one-to-one and are connected by chain drive. The rotation of the rotating rod 8 drives the sprockets to rotate, and the chain moves accordingly, driving the linkage block 12 to move until one of the linkage blocks 12 contacts the limit rod 35. The linkage block 12 will be blocked and cannot continue to move. Correspondingly, the rotating rod 8 stops rotating, and the linkage block 12 on the other side can no longer move. At this time, the nozzle position of the fire extinguisher 9 is the abnormally high temperature position. The rope is made of fireproof material.

[0045] It should be noted that the diameter of the spool 10 is larger than that of the sprocket. Initially, most of the rope is wrapped around the outside of the spool 10, and the initial winding diameter is larger than that of the sprocket. When the counterweight 11 moves downward, it only needs to move a smaller distance to drive the linkage block 12 a larger distance. Therefore, there will be no situation where the linkage block 12 has not reached the target position when the counterweight 11 touches the bottom. Example 3

[0046] like Figure 9 , Figure 10 and Figure 11 As shown, based on Embodiment 2, the present invention provides a technical solution: preferably, a plurality of through slots are provided on the horizontal plate 3, and a plurality of heat-conducting grooves corresponding one-to-one with the through slots are also provided on the rail 32. One end of the piston cylinder 33 is set as a copper plate 42, and a heat-conducting component 48 is connected to the side of the copper plate 42 by screws. The heat-conducting component 48 passes through the through slots and the heat-conducting grooves in sequence and contacts the rail 32. The piston cylinder 33 is riveted to the horizontal plate 3 by the heat-conducting component 48 and screws. Both the rail 32 and the horizontal plate 3 are made of heat-insulating material.

[0047] Traditional rail 32 and horizontal plate 3 are usually made of metal. When a fire occurs in a local area, the heat is quickly transferred to the nearby area through heat conduction, thereby triggering the nearby heat feedback structure, which makes it impossible for the nozzle of the fire extinguisher 9 to accurately reach the fire point. In this embodiment, by setting both the rail 32 and the cross plate 3 as heat-insulating frame structures, and setting heat-conducting components 48 at the heat collection points to transfer heat, the heat transfer between adjacent heat-conducting components 48 is blocked by the aforementioned heat-insulating frame structure and cannot be transferred quickly, thereby avoiding the situation where the nearby feedback structure malfunctions due to heat conduction. Preferably, the horizontal plate 3 is a heat-insulated color steel sandwich panel, specifically composed of a double-layer steel plate and a polystyrene core layer; the rail 32 is made of alumina ceramic, wherein the copper plate 42 is sealed to the piston cylinder 33.

[0048] It should be noted that using heat conduction for monitoring can effectively reflect whether a fire has occurred. Under normal working conditions, since the heat conduction element 48 does not directly contact the heat-generating part, heat transfer still needs to be transmitted through the air, and by the time it reaches the heat feedback structure, the heat is already very little. However, when a fire occurs, the heat conduction element 48 is in a state of being baked by flames, so the temperature will rise sharply, thereby triggering the action. Therefore, the above design can avoid the situation where heat accumulation causes misjudgment.

[0049] like Figure 3 , Figure 4 and Figure 5As shown, preferably, the actuating component includes a mounting plate 51 fixedly connected to the inner side of the lifting frame 6. A sliding column 52 is slidably connected to the mounting plate 51. One end of the sliding column 52 is fixedly connected to the safety pin of the fire extinguisher 9, and the other end extends through to the other side of the mounting plate 51 and is fixedly connected to a sling 54. A wheel frame is fixedly connected to the top of the inner wall of the cabinet 1. Two guide wheels 53 are rotatably connected between adjacent sides of the wheel frame. The sling 54 passes over the upper guide wheel 53 and is fixedly connected to the top of the cabinet 1. A sliding frame 56 is fixedly connected to the top of the lifting frame 6. A fixing rod 50 is fixedly connected to the side of the sliding frame 56 near the handle of the fire extinguisher 9. A trigger block 58 is slidably connected inside the frame 56. A trigger spring 59 is fixedly connected between the trigger block 58 and the bottom of the inner wall of the slide 56. A pressing column 60 and an auxiliary block 61 are fixedly connected to opposite sides of the trigger block 58, respectively. A pressure rod 62 is fixedly connected to the bottom of the auxiliary block 61. A delay cylinder 64 is fixedly connected to the top of the lifting frame 6. A piston plate 65 is slidably connected between the inner walls of the delay cylinder 64. The top of the piston plate 65 is fixedly connected to the pressure rod 62. A locking rod 63 is fixedly connected to the middle of the pressure rod 62. The locking rod 63 is in contact with the sliding column 52. The delay cylinder 64 is connected to the external environment through a delay tube 66.

[0050] In this embodiment, initially, the trigger spring 59 is in a stretched state, but the pressure rod 62 and locking rod 63 are blocked by the sliding rod 52 and cannot be reset. There is a certain distance between the pressing rod 60 and the handle of the fire extinguisher 9. When a fire occurs, the lifting frame 6 moves downward, which drives the fire extinguisher 9 to move downward. The safety pin of the fire extinguisher 9 and the sliding rod 52 are pulled out under the pull of the sling 54, so that the sliding rod 52 no longer blocks the locking rod 63. The trigger block 58 slides downward under the rebound of the trigger spring 59, which drives the pressing rod 60 to move downward synchronously, thereby pressing the handle of the fire extinguisher 9 and realizing automatic spraying of dry powder.

[0051] However, initially, the fire extinguisher 9 has not moved to the location of the fire target, so it cannot spray dry powder yet. Therefore, in this embodiment, a delay structure is also provided to delay the spraying: the pressure rod 62 loses the obstruction of the sliding column 52, and under the elastic force of the trigger spring 59, it pushes the piston plate 65 to slide downward in the delay cylinder 64. The gas inside the delay cylinder 64 is slowly discharged to the outside through the delay tube 66. This delay design ensures that the translation component completes its action first (i.e., the nozzle accurately reaches the abnormal temperature position), avoiding the dry powder from failing to act on the ignition point due to premature spraying.

[0052] As the piston plate 65 gradually moves down, the pressure rod 62 drives the auxiliary block 61 to move down synchronously until the pressing column 60 contacts the handle of the fire extinguisher 9. At this time, the elastic force of the trigger spring 59 is transmitted to the pressing column 60 through the trigger block 58, so that the pressing column 60 continuously presses the handle of the fire extinguisher 9. Under the action of internal pressure, the dry powder is sprayed out through the nozzle to achieve directional fire extinguishing.

[0053] Throughout the process, the pulling of the sling 54 and the mechanical linkage of the trigger block 58 form a continuous "pin-pull-delay-press" action without electrical drive: the sling 54 ensures that the safety pin is pulled out first (releasing the spray lock), the delay cylinder 64 achieves synchronization of the spray timing with the movement of the translation component through the slow discharge of gas (spraying only after the nozzle is in position), and finally, the pressing spray is completed by the elastic force of the trigger spring 59. This purely mechanical linkage design not only avoids the risk of electric drive failure in a fire, but also ensures the accuracy of the fire extinguishing action through the delay mechanism. It is fully compatible with the gravity drive logic of the lifting and translation components, forming a fully mechanical fire extinguishing closed loop of "positioning-unlocking-positioning-spraying".

[0054] Among them, the sling 54 is made of fireproof material, preferably steel cable. Example 4

[0055] like Figure 9 As shown, based on Embodiment 2, the present invention provides a technical solution, giving an implementation method 1 of the thermal feedback structure: preferably, the thermal feedback structure includes a thermally fused block 49, which is bonded between the piston plate 34 and the copper plate 42.

[0056] In this embodiment, for the sake of speed of action, the thermal feedback component uses a thermal break block 49 to bond the piston plate 34 to the copper plate 42. When an abnormally high temperature occurs, the thermal break block 49 melts and separates the piston plate 34 from the copper plate 42, so that the piston plate 34 can move under the action of the tension spring 36, and the action is rapid, which aims to improve safety performance.

[0057] Among them, the hot-melting fracture block 49 is a temperature-sensitive alloy, which can be a tin-silver-copper alloy or an indium-tin oxide. Example 5

[0058] like Figure 10 , Figure 11 , Figure 14 and Figure 15As shown, based on Embodiment 2, the present invention provides a technical solution, giving Embodiment 2 of the thermal feedback structure: Preferably, the thermal feedback structure includes a retainer 39 fixedly connected to one side of the piston plate 34, a wedge 41 slidably connected between the inner walls of the retainer 39, a spring 40 fixedly connected between the wedge 41 and one side of the inner wall of the retainer 39, a retaining ring 44 for cooperating with the wedge 41 fixedly connected to the part of the side wall of the copper plate 42 located inside the piston cylinder 33; a trigger seat 43 fixedly connected to the side of the copper plate 42 near the retaining ring 44, a strip groove is provided on both sides of the trigger seat 43, a push block 46 slidably connected between the inner walls of the trigger seat 43, a protrusion is symmetrically arranged on both sides of the push block 46, and the protrusion extends to the outside of the trigger seat 43 through the strip groove, a slide rod 57 fixedly connected to one side of the retaining ring 44, the slide rod 57 passes through the protrusion and is slidably connected to the protrusion, a spring 45 is sleeved on the outside of the slide rod 57, and an expansion block 47 is fixedly connected to the part of the copper plate 42 located inside the trigger seat 43.

[0059] In this embodiment, for reusability, the thermal feedback component can be triggered by the expansion block 47 and can be manually reset after the temperature returns to normal, thus achieving reusability. Specifically, when an abnormally high temperature occurs, the high temperature is transferred to the expansion block 47 through the heat conductor 48 and the copper plate 42, causing the expansion block 47 to expand and push the push block 46 to move (and compress the spring 45), squeezing the wedge block 41 until the wedge block 41 leaves the retaining ring 44 (and compresses the spring 40). At this time, the piston plate 34 moves under the rebound action of the tension spring 36. When the temperature stabilizes, the expansion block 47 returns to its initial state, and the push block 46 resets under the rebound of the spring 45. At this time, the limit rod 35 is pressed from the rear of the cabinet 1 (the rear cover is removable), pushing the piston plate 34 to move until the wedge 41 contacts the retaining ring 44. Under the action of the inclined surfaces of the retaining ring 44 and the wedge 41, the wedge 41 automatically retracts into the retaining seat 39, and the spring 40 is compressed. When the wedge 41 is facing the retaining ring 44, the wedge 41 automatically pops out under the elastic force of the spring 40 and engages with the retaining ring 44, thus enabling reuse and aiming to improve service life.

[0060] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A mechanically triggered active fire extinguishing power distribution cabinet, comprising a cabinet body (1), a mounting frame, and a mounting rail (32), wherein the mounting frame comprises two upright plates (2) fixedly connected inside the cabinet body (1) and several horizontal plates (3) fixedly connected between the two upright plates (2), and the mounting rail (32) is mounted on the mounting frame by screws, and the mounting rail (32) is used to mount electronic components; characterized in that, Also includes: Fire extinguisher (9), on which an actuating component is installed, the actuating component being used to control the operation of the fire extinguisher (9); A lifting component is used to control the descent of the fire extinguisher (9); The sensing components are provided in multiple locations, each corresponding to a monitoring point on the mounting bracket, to monitor abnormal high temperatures and trigger the lifting components to work when abnormal high temperatures occur until the fire extinguisher (9) reaches the abnormal temperature height position. Translation component, used to control the nozzle of fire extinguisher (9) to move horizontally to a position of abnormal temperature; The lifting component includes a slide rail (4), a slider (5) is slidably connected to the outside of the slide rail (4), a lifting frame (6) is fixedly connected to the slider (5), the fire extinguisher (9) is fixedly connected to the lifting frame (6), and a counterweight (11) is also provided on the lifting frame (6); a locking structure is fixedly connected to the upright plate (2), the locking structure is used to fix the lifting frame (6) and the upright plate (2), and the sensing component controls the locking structure to unlock when it detects an abnormal high temperature.

2. The mechanically triggered active fire extinguishing power distribution cabinet according to claim 1, characterized in that: The locking structure includes a piston cylinder (21) fixedly connected to the horizontal plate (3), a piston plate (23) slidably connected between the inner walls of the piston cylinder (21), a locking block (24) slidably connected to one side of the piston cylinder (21), the locking block (24) being fixedly connected to the piston plate (23), a spring (26) being fixedly connected between the piston plate (23) and the inner wall of the piston cylinder (21), a control tube (25) being provided on the piston cylinder (21), the control tube (25) being connected to the air intake pipe (37), the piston cylinder (21) having a valve connected to the external environment, and a locking groove being provided on the lifting frame (6) for use with the locking block (24). The sensing component includes a piston cylinder two (33), which is fixedly connected to a mounting bracket. A piston plate two (34) is slidably connected between the inner walls of the piston cylinder two (33). Each piston cylinder two (33) is provided with an air inlet pipe (37) and an air outlet pipe (38). A one-way valve is installed inside both the air inlet pipe (37) and the air outlet pipe (38). The air inlet pipe (37) is connected to the control pipe (25). The piston plate two (34) and the piston cylinder two (33) are connected to each other. A tension spring (36) is fixedly connected between the inner walls on one side. Several thermal feedback structures are provided on the side of the mounting bracket away from the rail (32). The thermal feedback structures are used to keep the piston plate two (34) fixed and release the piston plate two (34) when abnormal high temperature occurs. A limit rod (35) is fixedly connected on the side of the piston plate two (34) away from the tension spring (36). The limit rod (35) extends to the outside of the piston cylinder two (33) and is slidably connected to the piston cylinder two (33).

3. The mechanically triggered active fire extinguishing power distribution cabinet according to claim 2, characterized in that: The bottom of the lifting frame (6) is fixedly connected to a speed limiting cylinder (22). A piston plate (29) is slidably connected between the inner walls of the speed limiting cylinder (22). A return spring (27) is fixedly connected between the piston plate (29) and the speed limiting cylinder (22). A square rod (30) is fixedly connected to the side of the piston plate (29) away from the return spring (27). The square rod (30) extends through to the outside of the speed limiting cylinder (22) and is fixedly connected to an arc-shaped block (31). The square rod (30) is slidably connected to the speed limiting cylinder (22). The vertical plate (2) is provided with several slack grooves (20) at equal intervals along the vertical direction. The arc surface of the arc-shaped block (31) is located inside the slack groove (20). A flow limiting pipe (28) communicating with the external environment is provided on the speed limiting cylinder (22). The corners of the slack groove (20) are all rounded.

4. A mechanically triggered active fire extinguishing power distribution cabinet according to claim 3, characterized in that: The translation component includes two fixed plates (7) symmetrically fixedly connected to the lifting frame (6). Each of the two fixed plates (7) is rotatably connected to a rotating rod (8). The two rotating rods (8) are connected by a sprocket and a chain drive, and each chain is fixedly connected to a linkage block (12). The nozzle of the fire extinguisher (9) is fixedly connected to the linkage block (12). A coil (10) is fixedly connected to the outside of each rotating rod (8). A rope is wound on the coil (10), with one end of the rope fixedly connected to the coil (10) and the other end fixedly connected to a counterweight (11). The lifting frame (6) An L-shaped plate (13) is fixedly connected to one side of the L-shaped plate (13), and a linkage rod (14) is slidably connected to the bottom of the L-shaped plate (13). The top of the linkage rod (14) extends above the L-shaped plate (13) and is fixedly connected to a baffle (15). A pressure plate (16) is fixedly connected to the bottom of the linkage rod (14). A spring (17) is sleeved on the outside of the linkage rod (14) and below the lifting frame (6). A blocking block (19) is fixedly connected to the outside of the rotating rod (8). A rotating handle is fixedly connected to the outside of the rotating rod (8), and a pressure frame (18) is fixedly connected to the outside of the linkage rod (14).

5. A mechanically triggered active fire extinguishing power distribution cabinet according to claim 4, characterized in that: The horizontal plate (3) has several through slots, and the rail (32) also has several heat-conducting grooves that correspond one-to-one with the through slots. One end of the piston cylinder (33) is set as a copper plate (42), and a heat-conducting component (48) is connected to the side of the copper plate (42) by screws. The heat-conducting component (48) passes through the through slots and the heat-conducting grooves in sequence and contacts the rail (32). The piston cylinder (33) is riveted to the horizontal plate (3) by the heat-conducting component (48) and screws. Both the rail (32) and the horizontal plate (3) are made of heat-insulating material.

6. A mechanically triggered active fire extinguishing power distribution cabinet according to claim 5, characterized in that: The actuating component includes a mounting plate (51) fixedly connected to the inner side of the lifting frame (6). A sliding column (52) is slidably connected to the mounting plate (51). One end of the sliding column (52) is fixedly connected to the safety pin of the fire extinguisher (9), and the other end extends through to the other side of the mounting plate (51) and is fixedly connected to a sling (54). A wheel frame is fixedly connected to the top of the inner wall of the cabinet (1). Two guide wheels (53) are rotatably connected between the adjacent sides of the wheel frame. The sling (54) passes over the guide wheel (53) located above and is fixedly connected to the top of the cabinet (1). A slide (56) is fixedly connected to the top of the lifting frame (6). A fixing rod (50) is fixedly connected to the side of the slide (56) near the handle of the fire extinguisher (9). The inner side of the slide (56) is... A trigger block (58) is slidably connected to the slide (56). A trigger spring (59) is fixedly connected between the trigger block (58) and the bottom of the inner wall of the slide (56). A pressing column (60) and an auxiliary block (61) are fixedly connected to the opposite sides of the trigger block (58). A pressure rod (62) is fixedly connected to the bottom of the auxiliary block (61). A delay cylinder (64) is fixedly connected to the top of the lifting frame (6). A piston plate (65) is slidably connected between the inner walls of the delay cylinder (64). The top of the piston plate (65) is fixedly connected to the pressure rod (62). A locking rod (63) is fixedly connected to the middle of the pressure rod (62). The locking rod (63) is in contact with the slide column (52). The delay cylinder (64) is connected to the external environment through a delay tube (66).

7. A mechanically triggered active fire extinguishing power distribution cabinet according to claim 2, characterized in that: The thermal feedback structure includes a thermally fused break block (49), which is bonded between the piston plate (34) and the copper plate (42).

8. A mechanically triggered active fire extinguishing power distribution cabinet according to claim 2, characterized in that: The thermal feedback structure includes a retainer (39) fixedly connected to one side of the piston plate (34), a wedge (41) slidably connected between the inner walls of the retainer (39), a spring (40) fixedly connected between the wedge (41) and one side of the inner wall of the retainer (39), and a retaining ring (44) for cooperating with the wedge (41) fixedly connected to the part of the side wall of the copper plate (42) located inside the piston cylinder (33); a trigger seat (43) fixedly connected to the side of the copper plate (42) near the retaining ring (44). Both sides of the trigger seat (43) are provided with strip grooves. Push blocks (46) are slidably connected between the inner walls of the trigger seat (43). Protrusions are symmetrically arranged on both sides of the push blocks (46), and the protrusions extend to the outside of the trigger seat (43) through the strip grooves. A sliding rod (57) is fixedly connected to one side of the retaining ring (44). The sliding rod (57) passes through the protrusion and is slidably connected to the protrusion. A spring (45) is sleeved on the outside of the sliding rod (57). An expansion block (47) is fixedly connected to the part of the copper plate (42) located inside the trigger seat (43).

Images