A fire-fighting power supply with emergency switching function

Abstract

The invention discloses a fire power supply with an emergency switching function, which belongs to the technical field of switching of fire power supplies, and comprises a box body, a main power supply, an emergency power supply, an infrared sensor and a switching device, wherein the switching device comprises a switching frame, a part of the switching frame is fixedly connected to the inside of the box body, a driving plate and two fixed plates are fixedly connected to the bottom wall of the switching frame respectively, a driving groove is arranged on the driving plate, two conveying shafts are rotatably mounted on the driving plate and the two fixed plates together, two conveying belts are jointly mounted on the two conveying shafts through a synchronous wheel set, an emergency plate and a switching plate are respectively arranged inside the switching frame, the main power supply and the emergency power supply are respectively located on the top of the switching plate and the emergency plate, and the power supply can be replaced after a fault through switching of the emergency plate and the switching plate, thereby realizing effective guarantee for subsequent power supply, providing effective power supply support for personnel evacuation, and improving the stability and reliability of the fire emergency system.

Description

Technical Field

[0001] The present invention relates to the technical field of switching of fire power supplies, in particular to a fire power supply with an emergency switching function. Background Art

[0002] At present, the fire power supply is suitable for providing centralized power supply for evacuation lighting and other important primary power supply loads when a fire occurs in a building. When the AC mains is normal, the AC mains will supply power to important loads through the mutual switching device. When the AC mains is cut off, the mutual switching device will immediately switch to the inverter for power supply. The power supply time is determined by the capacity of the battery. When the mains voltage is restored, the emergency power supply will be restored to mains power supply.

[0003] For example, the patent with announcement number CN220324979U specifically discloses a fire power supply with heat dissipation effect. The patent cabinet is provided with vents on the side, and the inner wall is equipped with motor-driven fan blades to promote heat dissipation. One side of the cabinet is equipped with a dustproof mechanism to block dust through a rotatable louver. The structure is simple and practical.

[0004] In the above-mentioned public patent, the fire power supply is protected by a dustproof mechanism and a heat dissipation mechanism. However, if the power supply itself fails, since the entire system relies on this single power supply, the failure will cause the entire fire system to be unable to supply power effectively. In an emergency, the power supply stability of the fire system is crucial. Once the power supply fails, key functions such as fire evacuation instructions and emergency lighting will fail, causing great difficulties for the evacuation of personnel.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a fire power supply with an emergency switching function to achieve the effect of providing power supply guarantee and timely warning.

[0007] In order to solve the above technical problems, the technical solution of the present invention is: a fire power supply with emergency switching function, including a box, a main power supply, an emergency power supply, an infrared sensor and a switching device;

[0008] The switching device comprises a switching frame, part of which is fixedly connected to the inside of the box, a driving plate and two fixed plates are respectively fixedly connected to the bottom wall of the switching frame, a driving groove is provided on the driving plate, two conveying shafts are rotatably mounted on the driving plate and the two fixed plates, and two conveying belts are mounted on the two conveying shafts through a synchronous wheel set;

[0009] An emergency plate and a switching plate are respectively arranged inside the switching frame, the main power supply and the emergency power supply are respectively located at the top of the switching plate and the emergency plate, the tops of the two fixed plates are slidably equipped with a sliding plate, the bottoms of the sliding plate and the switching plate are fixedly connected to the conveyor belt with two connecting rods, four directional rods are welded to the bottom of the emergency plate, four directional holes corresponding to the directional rods are opened on the sliding plate, the bottom of the emergency plate is fixedly connected to two linkage plates by bolts, one side of the two linkage plates is commonly fixedly connected with a linkage rod by bolts, the linkage rod passes through the inside of the driving slot, and temperature sensors are installed on both the emergency plate and the switching plate.

[0010] Furthermore, it also includes a box cover installed on the top of the box body, the switching device and the infrared sensor are both located on the box body, and a warning device is commonly provided on the switching frame, the box cover and the inside of the box body;

[0011] The warning device includes a warning plate, one end of the warning plate is welded with a roller shaft, and the roller shaft is rotatably installed inside the box cover, and the switching frame and the inner wall of the box body are jointly rotatably installed with a connecting shaft, one end of the connecting shaft is fixedly connected to one end of one of the conveying shafts, a connecting gear is welded on the outer circumference of the connecting shaft, a straight rod is welded on the inner wall of the box body, a connecting rack plate is slidably mounted on the outer circumference of the straight rod, and a warning rack plate is welded on the top of the connecting rack plate, a warning shaft is rotatably installed on the inner wall of the box body, a warning gear is welded on the outer circumference of the warning shaft, two sliding tooth blocks are slidably mounted on the connecting rack plate, both sides of the sliding tooth block are fixedly connected with movable blocks, both sides of the connecting rack plate are fixedly connected with two fixed blocks, a fixed rod is welded on one side of the fixed block, and a warning synchronous belt is jointly installed on the outer circumference of the warning shaft and the roller shaft through a synchronous wheel set.

[0012] Furthermore, a protective device is provided on the box;

[0013] The protective device includes a protective shell and two protective doors, a hinge shaft is rotatably installed inside the box, the protective shell is fixedly connected to the outer circumference of the hinge shaft, the protective door is slidably assembled on the inner wall of the box, a block is fixedly connected to one side of the protective door, a switch rack plate is welded on one side of the two blocks, a switch shaft is rotatably installed inside the box, a switch gear is fixedly sleeved on the outer circumference of the switch shaft, and the two switch rack plates are meshed with the switch gear, a driving shaft and a driven shaft are rotatably installed inside the box, and bevel gear one and bevel gear two are fixedly sleeved on the outer circumferences of the driving shaft and the driven shaft, a protective rack plate is welded on one side of one of the protective doors, and the protective rack plate is slidably assembled inside the box, a protection gear is welded on one end of the driving shaft, and a protective synchronous belt is installed on the outer circumferences of the driven shaft and the hinge shaft through a synchronous wheel set.

[0014] Furthermore, the emergency panel and the switch panel are both provided with clamping devices;

[0015] The clamping device includes a clamping screw, and the two clamping screws are rotatably installed inside the emergency plate and the switching plate respectively. A clamping gear is fixedly sleeved on the outer circumference of the clamping screw, and two transmission plates are threadedly sleeved on the outer circumference of the clamping screw. A clamping plate is welded on the top of the transmission plate, and a clamping rack plate is welded on the inner wall of the box body. A clamping shaft is rotatably installed on one side of one of the linkage plates, and a driving gear is fixedly sleeved on the outer circumference of the clamping shaft.

[0016] Furthermore, a square groove is formed on the box body, and part of the switching frame passes through the interior of the square groove.

[0017] Furthermore, the warning gear is meshed with the warning rack plate, the connecting gear is meshed with the connecting rack plate, a through slot corresponding to the straight rod is provided on the connecting rack plate, and the straight rod passes through the interior of the through slot.

[0018] Furthermore, a circular hole is opened on the movable block, the fixed rod passes through the inside of the circular hole, a stopper is welded to one end of the straight rod and the fixed rod, and a return spring is fixedly connected to one side of the fixed block and the movable block, and the return spring is sleeved on the outer circumferential surface of the fixed rod.

[0019] Furthermore, the bevel gear one is meshed with the bevel gear two, and the protective rack plate is meshed with the protective gear.

[0020] Furthermore, the clamping screw is provided with a forward threaded portion and a reverse threaded portion, and threaded holes are opened on the two transmission plates. The forward threaded portion and the reverse threaded portion are respectively threadedly connected to the inside of the two threaded holes, the driving gear is meshed with the clamping rack plate, and the clamping gear is meshed with the driving gear.

[0021] Furthermore, both the emergency plate and the switching plate are provided with placement grooves, and the clamping screw, the two transmission plates, the clamping gear and parts of the driving gear are all located inside the placement grooves.

[0022] The beneficial effects of this application are:

[0023] 1. The present invention enables the power supply to be replaced after a failure through the switching of the emergency board and the switch board, thereby effectively ensuring the subsequent power supply, providing effective power support for personnel evacuation, and improving the stability and reliability of the fire emergency system.

[0024] 2. The present invention raises the warning plate while switching the power supply, reminding the staff of the power failure in time, prompting the staff to repair the faulty power supply, thereby improving the safety and efficiency of the operation.

[0025] 3. If a fire occurs after a power failure in the present invention, the protective shell flips over, the protective door closes, and the protective door fits tightly with the switching board after switching. The protective shell covers the power supply after the fire to prevent the power supply after the fire from damaging other components and affecting the power supply, thereby improving the safety of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the internal structure of the box of the present invention;

[0029] Figure 3 is a schematic diagram of an anti-switching device of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the emergency panel and the switch panel of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the connecting rack plate of the present invention;

[0032] Figure 6 For the present invention Figure 5 The figure at the center number A;

[0033] Figure 7It is a structural schematic diagram of the protective device of the present invention;

[0034] Figure 8 A schematic structural diagram of the protective device of the present invention from another perspective;

[0035] Fig. 9 It is a schematic structural diagram of the clamping device of the present invention.

[0036] In the figure: 1. box body; 2. box cover;

[0037] 3. Switching device; 30. Switching frame; 31. Emergency plate; 32. Switching plate; 33. Fixed plate; 34. Driving plate; 35. Conveying shaft; 36. Conveying belt; 37. Sliding plate; 38. Directional rod; 39. Linkage rod; 300. Linkage plate;

[0038] 4. Warning device; 40. Warning plate; 41. Roller; 42. Connecting shaft; 43. Straight rod; 44. Warning shaft; 45. Warning timing belt; 46. Connecting gear; 47. Warning rack plate; 48. Connecting rack plate; 49. Movable block; 400. Fixed block; 401. Fixed rod; 402. Reset spring; 403. Sliding gear block; 404. Warning gear;

[0039] 5. Protective device; 50. Protective shell; 51. Protective door; 52. Block; 53. Switch rack plate; 54. Switch shaft; 55. Switch gear; 56. Articulated shaft; 57. Protective rack plate; 58. Driving shaft; 59. Driven shaft; 500. Protective timing belt; 501. Protective gear; 502. Bevel gear one; 503. Bevel gear two;

[0040] 6. Infrared sensor; 7. Temperature sensor;

[0041] 8. Clamping device; 80. Clamping rack plate; 81. Clamping shaft; 82. Driving gear; 83. Clamping screw; 84. Clamping gear; 85. Clamping plate; 86. Transmission plate. DETAILED DESCRIPTION

[0042] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings. Example 1

[0043] like Figure 1-9As shown, the present application provides a fire power supply with an emergency switching function, including a box body 1, a main power supply, an emergency power supply, an infrared sensor 6 and a switching device 3, the switching device 3 includes a switching frame 30, a part of the switching frame 30 is fixedly connected to the inside of the box body 1, a driving plate 34 and two fixed plates 33 are fixedly connected to the bottom wall of the switching frame 30, a driving groove is provided on the driving plate 34, two conveying shafts 35 are rotatably installed on the driving plate 34 and the two fixed plates 33, two conveying belts 36 are installed on the two conveying shafts 35 through a synchronous wheel set, an emergency plate 31 and a switching plate 32 are respectively provided inside the switching frame 30, the main power supply The emergency power supply is respectively located at the top of the switching plate 32 and the emergency plate 31, the tops of the two fixed plates 33 are slidably equipped with a sliding plate 37, the bottoms of the sliding plate 37 and the switching plate 32 are fixedly connected to the conveyor belt 36 with two connecting rods, four directional rods 38 are welded to the bottom of the emergency plate 31, and four directional holes corresponding to the directional rods 38 are opened on the sliding plate 37. The bottom of the emergency plate 31 is fixedly connected to two linkage plates 300 by bolts, and one side of the two linkage plates 300 is fixedly connected to a linkage rod 39 by bolts. The linkage rod 39 passes through the inside of the driving groove, and the temperature sensor 7 is installed on the emergency plate 31 and the switching plate 32.

[0044] like Figure 1-9 As shown, the emergency plate 31 and the switching plate 32 are both provided with a clamping device 8, and the clamping device 8 includes a clamping screw 83, and the two clamping screws 83 are rotatably installed inside the emergency plate 31 and the switching plate 32 respectively, and a clamping gear 84 is fixedly sleeved on the outer circumference of the clamping screw 83, and two transmission plates 86 are threadedly sleeved on the outer circumference of the clamping screw 83, and a clamping plate 85 is welded on the top of the transmission plate 86, and a clamping rack plate 80 is welded on the inner wall of the box body 1, and a clamping shaft 81 is rotatably installed on one side of one linkage plate 300, and a driving gear 82 is fixedly sleeved on the outer circumference of the clamping shaft 81.

[0045] like Figure 1-2 As shown, a square groove is opened on the box body 1, and part of the switching frame 30 passes through the inside of the square groove.

[0046] like Fig. 9 As shown, the clamping screw 83 is provided with a forward threaded portion and a reverse threaded portion, and threaded holes are opened on the two transmission plates 86. The forward threaded portion and the reverse threaded portion are respectively threadedly connected to the inside of the two threaded holes, and the driving gear 82 is meshed with the clamping rack plate 80, and the clamping gear 84 is meshed with the driving gear 82.

[0047] like Fig. 9 As shown, both the emergency plate 31 and the switching plate 32 are provided with placement grooves, and the clamping screw 83, two transmission plates 86, the clamping gear 84 and parts of the driving gear 82 are all located inside the placement grooves.

[0048] In this embodiment, in order to ensure that the entire fire-fighting facility can be powered normally when the main power supply is damaged, when the surface temperature of the main power supply changes (the power supply is a lithium-ion battery), the infrared sensor 6 can capture these abnormal changes in the battery and convert them into electrical signals for processing and analysis. Then the signal is transmitted to the switching device 3, and the conveying shaft 35 rotates (the rotation of the conveying shaft 35 is driven by a servo motor, and the servo motor and the infrared sensor 6 are powered by separate batteries, which belongs to the prior art and will not be described in detail here), driving the conveyor belt 36 to start, and then the switching plate 32 and the sliding plate 37 are moved by the connecting rod, and the sliding plate 37 realizes the movement of the emergency plate 31 through four directional rods 38, thereby realizing the switching of the power on the emergency plate 31 and the switching plate 32, so that when the main power supply fails, the emergency power supply can be replaced for subsequent power supply, ensuring the continuous operation of the fire-fighting facilities, providing effective power support for personnel evacuation, and improving the stability and reliability of the fire emergency system;

[0049] Specifically, during switching, the linkage rod 39 slides inside the driving groove, and the inclined surface of the driving groove enables the linkage rod 39 to drive the emergency plate 31 to move downward through the linkage plate 300, thereby avoiding collision between the two batteries during the switching process;

[0050] Furthermore, to ensure stable switching of the two power supplies, during the switching process of the two power supplies, the driving gear 82 moves on the clamping rack plate 80, and the driving gear 82 rotates, driving the clamping gear 84 to rotate, thereby realizing the rotation of the clamping screw 83, so that the two transmission plates 86 move, and through the setting of the opposite threads of the forward threaded portion and the reverse threaded portion, the two transmission plates 86 drive the two clamping plates 85 to move relative to each other, thereby clamping and fixing the battery, avoiding the current shock or voltage fluctuation caused by the power switching inside the box 1 to damage the power supply or cause the power supply to deviate, and ensuring the stable switching work (the clamping plate 85 can be a mesh grid plate to avoid affecting its heat dissipation);

[0051] Specifically, since the driving gear 82 is in a stationary state when it moves to the area away from the clamping rack plate 80, the driving gear 82 can continue to mesh with the clamping rack plate 80 when it is reset next time, and there will be no tooth collision causing damage to the driving gear 82 and the clamping rack plate 80. At the same time, the driving groove is a longer parallel distance, so that the driving gear 82 on the emergency plate 31 moves downward after leaving the clamping rack plate 80, so that it moves downward after the clamping is stable. At the same time, the emergency plate 31 and the switching plate 32 are in the same horizontal position, thereby ensuring that both driving gears 82 can mesh with the clamping rack plate 80. Example 2

[0052] like Figure 1-6As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes a box body 1 and a box cover 2 installed on the top of the box body 1, the switching device 3 and the infrared sensor 6 are both located on the box body 1, and a warning device 4 is commonly provided on the switching frame 30, the box cover 2 and the inside of the box body 1, and the warning device 4 includes a warning plate 40, and a roller shaft 41 is welded to one end of the warning plate 40, and the roller shaft 41 is rotatably installed inside the box cover 2, and a connecting shaft 42 is rotatably installed on the inner wall of the switching frame 30 and the box body 1, and one end of the connecting shaft 42 is fixedly connected to one end of one of the conveying shafts 35, and a connecting gear 46 is welded to the outer peripheral surface of the connecting shaft 42, and the box body 1 A straight rod 43 is welded to the inner wall, a connecting rack plate 48 is slidably mounted on the outer circumference of the straight rod 43, a warning rack plate 47 is welded to the top of the connecting rack plate 48, a warning shaft 44 is rotatably mounted on the inner wall of the box body 1, a warning gear 404 is welded to the outer circumference of the warning shaft 44, two sliding gear blocks 403 are slidably mounted on the connecting rack plate 48, both sides of the sliding gear blocks 403 are fixedly connected with movable blocks 49, both sides of the connecting rack plate 48 are fixedly connected with two fixed blocks 400, a fixed rod 401 is welded to one side of the fixed block 400, and a warning synchronous belt 45 is installed on the outer circumference of the warning shaft 44 and the roller shaft 41 through a synchronous wheel set.

[0053] like Figure 3-6 As shown, the warning gear 404 is meshed with the warning rack plate 47, the connecting gear 46 is meshed with the connecting rack plate 48, and a through slot corresponding to the straight rod 43 is provided on the connecting rack plate 48, and the straight rod 43 passes through the interior of the through slot.

[0054] like Figure 3-6 As shown, a circular hole is opened on the movable block 49, and the fixed rod 401 passes through the inside of the circular hole. Blocks are welded on one end of the straight rod 43 and the fixed rod 401. The fixed block 400 and one side of the movable block 49 are jointly fixedly connected with a return spring 402, and the return spring 402 is sleeved on the outer peripheral surface of the fixed rod 401.

[0055] In this embodiment, in order to ensure that the damaged power supply is repaired in time after switching, the conveying shaft 35 drives the connecting shaft 42 to rotate synchronously, the connecting shaft 42 drives the connecting gear 46 to rotate, the connecting gear 46 drives the connecting rack plate 48 to move, the connecting rack plate 48 moves along the direction of the square straight rod 43, and then drives the warning rack plate 47 to move horizontally, the warning rack plate 47 drives the warning gear 404 to rotate, and then realizes the rotation of the warning shaft 44, the warning shaft 44 realizes the rotation of the roller shaft 41 through the warning synchronous belt 45, and then the battery raises the warning plate 40 during the switching process, so as to warn the staff that the fixed power supply is switched and prompt them to repair the faulty power supply, thereby improving the safety and efficiency of the operation;

[0056] Specifically, the conveying shaft 35 drives the connecting shaft 42 to rotate continuously until the power switching is completed, thereby causing the connecting gear 46 to rotate continuously. When the connecting gear 46 drives the connecting rack plate 48 to move to the next sliding gear block 403 position, the continuous rotation of the connecting gear 46 continuously pushes the sliding gear block 403 to move. Due to the sliding setting of the sliding gear block 403, the connecting rack plate 48 will not be continuously moved by the continuous rotation of the connecting gear 46, thereby ensuring that the warning plate 40 stops after rising and does not affect the switching of the power supply. When resetting, due to the resetting of the sliding gear block 403 by the reset spring 402 and the restriction of the block, the connecting gear 46 is reversed to drive the connecting rack plate 48 to reset, thereby realizing the lowering of the warning plate 40. Example 3

[0057] like Figure 1-8 As shown, based on the same concept as the above-mentioned embodiment 1 and embodiment 2, this embodiment further proposes that a protective device 5 is provided on the box body 1, and the protective device 5 includes a protective shell 50 and two protective doors 51. A hinge shaft 56 is rotatably installed inside the box body 1, and the protective shell 50 is fixedly connected to the outer circumference of the hinge shaft 56. The protective door 51 is slidably assembled on the inner wall of the box body 1. A block 52 is fixedly connected to one side of the protective door 51, and a switch rack plate 53 is welded to one side of the two blocks 52. A switch shaft 54 ​​is rotatably installed inside the box body 1, and a sleeve is fixed on the outer circumference of the switch shaft 54. A switch gear 55 is provided, and two switch rack plates 53 are meshed with the switch gear 55. A driving shaft 58 and a driven shaft 59 are rotatably installed inside the box body 1. Bevel gear 1 502 and bevel gear 2 503 are fixedly sleeved on the outer circumferences of the driving shaft 58 and the driven shaft 59. A protective rack plate 57 is welded on one side of one of the protective doors 51, and the protective rack plate 57 is slidably assembled inside the box body 1. A protective gear 501 is welded on one end of the driving shaft 58, and a protective synchronous belt 500 is installed on the outer circumferences of the driven shaft 59 and the hinge shaft 56 through a synchronous wheel set.

[0058] like Figure 7-8 As shown, bevel gear 1 502 and bevel gear 2 503 are meshed with each other, and the protection rack plate 57 and the protection gear 501 are meshed with each other.

[0059] In this embodiment, after the power switching is completed, in order to ensure the safety of the rescue and maintenance personnel, the temperature sensor 7 monitors the power supply again. If the temperature continues to rise, a fire may occur, which will cause harm to the entire fire power supply system and the personnel, and then the protective door 51 can be driven to move (the movement of the driving door is driven by the electric guide rail, the electric guide rail and the infrared sensor use the same power supply, and the temperature sensor 7 is powered by a built-in battery). Due to the meshing of the two switch rack plates 53 and the switch gear 55, the two protective doors 51 are synchronized and move relative to each other, and the switch plate 32 or the emergency plate 31 The protective door 51 is tightly fitted to achieve sealing, thereby preventing the fire from entering the interior of the box body 1 through the square groove. Due to the meshing of the protective rack plate 57 and the protective gear 501, the protective door 51 drives the protective rack plate 57 to move and the driving shaft 58 to rotate. The driving shaft 58 is engaged with the bevel gear 1 502 and the bevel gear 2 503, so that the driven shaft 59 rotates, and the hinge shaft 56 rotates through the protective synchronous belt 500, thereby turning the protective shell 50 over to prevent the fire from spreading. Several air ports can be opened on the protective shell 50 to prevent the accumulation of toxic gases and increase the risk of harm to maintenance personnel and surrounding personnel.

[0060] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire power supply with emergency switching function, characterized in that: It comprises a box (1), a main power supply, an emergency power supply, an infrared sensor (6), and a switching device (3); The switching device (3) comprises a switching frame (30), a portion of the switching frame (30) is fixedly connected to the inside of the box (1), a driving plate (34) and two fixed plates (33) are respectively fixedly connected to the bottom wall of the switching frame (30), a driving groove is provided on the driving plate (34), two conveying shafts (35) are rotatably mounted on the driving plate (34) and the two fixed plates (33), and two conveying belts (36) are mounted on the two conveying shafts (35) via a synchronous wheel set; An emergency plate (31) and a switching plate (32) are respectively arranged inside the switching frame (30); the main power supply and the emergency power supply are respectively located at the top of the switching plate (32) and the top of the emergency plate (31); a sliding plate (37) is slidably mounted on the tops of the two fixed plates (33); the bottoms of the sliding plate (37) and the switching plate (32) are both fixedly connected to the conveyor belt (36) by two connecting rods; four directional rods (38) are welded to the bottom of the emergency plate (31); four directional holes corresponding to the directional rods (38) are opened on the sliding plate (37); the bottom of the emergency plate (31) is screwed Two linkage plates (300) are fixedly connected by bolts, and one side of the two linkage plates (300) is commonly fixedly connected by a linkage rod (39) by bolts, and the linkage rod (39) passes through the interior of the driving groove. The emergency plate (31) and the switching plate (32) are both equipped with temperature sensors (7), and the infrared sensor (6) is configured to monitor the state of the main power supply in real time and output an abnormal signal. The conveying shaft (35) responds to the abnormal signal, and the connecting rod is coupled with the motion trajectory of the conveying belt (36). The physical switching of the main power supply and the emergency power supply is realized by the relative movement of the switching plate (32) and the emergency plate (31).

2. A fire power supply with emergency switching function according to claim 1, characterized in that: It also includes a box cover (2) installed on the top of the box body (1), the switching device (3) and the infrared sensor (6) are both located on the box body (1), and a warning device (4) is commonly provided on the switching frame (30), on the box cover (2) and inside the box body (1); The warning device (4) comprises a warning plate (40), one end of which is welded with a roller shaft (41), the roller shaft (41) being rotatably mounted inside the box cover (2), a connecting shaft (42) being rotatably mounted on the inner wall of the switching frame (30) and the box body (1), one end of which is fixedly connected to one end of one of the conveying shafts (35), a connecting gear (46) being welded on the outer circumference of the connecting shaft (42), a straight rod (43) being welded on the inner wall of the box body (1), a connecting rack plate (48) being slidably mounted on the outer circumference of the straight rod (43), the connecting rack plate (48) being A warning rack plate (47) is welded to the top, a warning shaft (44) is rotatably mounted on the inner wall of the box body (1), a warning gear (404) is welded to the outer peripheral surface of the warning shaft (44), two sliding tooth blocks (403) are slidably mounted on the connecting rack plate (48), movable blocks (49) are fixedly connected to both sides of the sliding tooth blocks (403), two fixed blocks (400) are fixedly connected to both sides of the connecting rack plate (48), a fixed rod (401) is welded to one side of the fixed block (400), and a warning synchronous belt (45) is installed on the outer peripheral surfaces of the warning shaft (44) and the roller shaft (41) through a synchronous wheel set.

3. A fire-fighting power supply with emergency switching function according to claim 2, characterized in that: The box body (1) is provided with a protective device (5); The protective device (5) comprises a protective shell (50) and two protective doors (51); a hinge shaft (56) is rotatably mounted inside the box (1); the protective shell (50) is fixedly connected to the outer peripheral surface of the hinge shaft (56); the protective door (51) is slidably mounted on the inner wall of the box (1); a block (52) is fixedly connected to one side of the protective door (51); one side of the two blocks (52) are welded with switch rack plates (53); a switch shaft (54) is rotatably mounted inside the box (1); a switch gear (55) is fixedly sleeved on the outer peripheral surface of the switch shaft (54); the two switch rack plates (53) are connected to the inner wall of the box (1); The switch gears (55) are meshed with each other, and a driving shaft (58) and a driven shaft (59) are rotatably mounted inside the housing (1), and a bevel gear 1 (502) and a bevel gear 2 (503) are fixedly sleeved on the outer circumferences of the driving shaft (58) and the driven shaft (59), respectively. A protective rack plate (57) is welded on one side of one of the protective doors (51), and the protective rack plate (57) is slidably mounted inside the housing (1), and a protective gear (501) is welded on one end of the driving shaft (58), and a protective synchronous belt (500) is mounted on the outer circumferences of the driven shaft (59) and the hinge shaft (56) through a synchronous wheel set.

4. The fire-fighting power supply with emergency switching function according to claim 3 is characterized in that: The emergency panel (31) and the switching panel (32) are both provided with a clamping device (8); The clamping device (8) comprises a clamping screw (83), wherein two clamping screws (83) are rotatably mounted inside the emergency plate (31) and the switching plate (32) respectively, a clamping gear (84) is fixedly sleeved on the outer circumference of the clamping screw (83), two transmission plates (86) are threadedly sleeved on the outer circumference of the clamping screw (83), a clamping plate (85) is welded to the top of the transmission plate (86), a clamping rack plate (80) is welded to the inner wall of the box body (1), a clamping shaft (81) is rotatably mounted on one side of one of the linkage plates (300), and a driving gear (82) is fixedly sleeved on the outer circumference of the clamping shaft (81).

5. The fire-fighting power supply with emergency switching function according to claim 4, characterized in that: The box body (1) is provided with a square groove, and a portion of the switching frame (30) passes through the interior of the square groove.

6. The fire power supply with emergency switching function according to claim 5, characterized in that: The warning gear (404) is meshed with the warning rack plate (47), the connecting gear (46) is meshed with the connecting rack plate (48), a through slot corresponding to the straight rod (43) is provided on the connecting rack plate (48), and the straight rod (43) passes through the interior of the through slot.

7. The fire power supply with emergency switching function according to claim 6, characterized in that: A circular hole is formed on the movable block (49), the fixed rod (401) passes through the circular hole, a stopper is welded to one end of the straight rod (43) and the fixed rod (401), a return spring (402) is fixedly connected to one side of the fixed block (400) and the movable block (49), and the return spring (402) is sleeved on the outer circumferential surface of the fixed rod (401).

8. The fire power supply with emergency switching function according to claim 7, characterized in that: The bevel gear 1 (502) and the bevel gear 2 (503) are meshed with each other, and the protection rack plate (57) and the protection gear (501) are meshed with each other.

9. The fire-fighting power supply with emergency switching function according to claim 8, characterized in that: The clamping screw (83) is provided with a forward threaded portion and a reverse threaded portion, and the two transmission plates (86) are provided with threaded holes. The forward threaded portion and the reverse threaded portion are respectively threadedly connected to the inside of the two threaded holes, the driving gear (82) is meshed with the clamping rack plate (80), and the clamping gear (84) is meshed with the driving gear (82).

10. A fire power supply with emergency switching function according to claim 9, characterized in that: The emergency plate (31) and the switching plate (32) are both provided with placement grooves, and the clamping screw (83), the two transmission plates (86), the clamping gear (84) and parts of the driving gear (82) are all located inside the placement grooves.

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