A self-cooling intelligent alarm descending device

Abstract

The present application discloses a self-cooling intelligent alarm descender, which relates to the technical field of descenders, comprising a housing, a rotating shaft rotatably mounted in the housing, a rope wound around the rotating shaft, a passage reserved on the housing for the rope to enter and exit, a gear 1 mounted on the rotating shaft, a gear 2 rotatably mounted in the housing, the gear 1 and the gear 2 being meshed with each other, an air intake fan rotatably mounted in the housing, a gear 3 mounted on the air intake fan, the gear 3 and the gear 2 being meshed with each other. The present application has the effect of alleviating heat accumulation in the descender.

Description

Technical Field

[0001] The present application relates to the technical field of descending devices, and in particular to a self-cooling intelligent alarm descending device. Background Art

[0002] A descender is a type of safety and rescue equipment consisting of a rope, a lifting ring, and a deceleration device. Typically installed on a building window, balcony, or rooftop, it allows users to slowly descend along the rope to a safe location (such as the ground level or a secure floor), minimizing casualties in the event of a fire or other emergency.

[0003] The rope used by people to go up and down in the descender is wound around the rotating shaft. During the process of the rope going up and down, the rope drives the rotating shaft to rotate, and the rotating shaft drives gear 1 installed on the rotating shaft to rotate, and gear 1 drives another larger gear 2 to rotate. Gear 1 and gear 2 are meshed with each other, and gear 2 and gear 1 have a high reduction ratio (usually not less than ten times). Through the energy consumption of the speed ratio of gear 2 and gear 1 and other deceleration structures (not shown in the figure), the mechanical energy converted from the potential energy of the person's descent is reduced, thereby achieving the purpose of "slow descent".

[0004] However, during the actual use of the descender, friction occurs between the rope and the rotating shaft, causing heat to be generated in the descender. If the heat is not discharged in time, the heat will continue to accumulate in the rope and the descender, causing the rope and the descender to continue to heat up. This increases the possibility of rope breakage and damage to the components in the descender, and increases the risk of users descending through the descender. Summary of the Invention

[0005] In order to alleviate the heat accumulation in the descending device, the present application provides a self-cooling intelligent alarm descending device.

[0006] This application provides a self-cooling intelligent alarm descending device, which adopts the following technical solutions:

[0007] A self-cooling intelligent alarm descender comprises a shell, a rotating shaft is rotatably installed in the shell, a rope is wound on the rotating shaft, a passage for the rope to enter and exit is reserved on the shell, gear one is installed on the rotating shaft, gear two is rotatably installed in the shell, gear one and gear two are meshed with each other, an air intake fan is rotatably installed in the shell, gear three is installed on the air intake fan, gear three and gear two are meshed with each other.

[0008] Through the above technical solution, when the operator uses the descender to perform rescue or testing, the operator gradually descends through the rope, the rope drives the rotating shaft to rotate, the rotating shaft drives gear one to rotate, gear one drives gear two to rotate, gear two drives gear three to rotate, and gear three drives the air intake fan to rotate. The rotating air intake fan can accelerate the gas to enter the shell of the descender to accelerate the gas flow in the shell, so as to discharge the heat originally accumulated in the shell with the gas outside the shell, thereby alleviating the heat accumulation in the descender, reducing the possibility of telescopic fracture and damage to the components in the descender, and thus improving the safety of the operator when using the descender.

[0009] In a preferred example, the present application can be further configured as follows: an exhaust fan is rotatably installed in the shell, a gear four is installed on the exhaust fan, the gear four and the gear two are engaged with each other, a plurality of air inlet slots and a plurality of air outlet slots are opened on the shell, the air inlet fan is arranged corresponding to the air inlet slots, and the air outlet fan is arranged corresponding to the air outlet slots.

[0010] Through the above technical solution, in the process of the rope driving the rotating shaft to rotate, on the one hand, the air intake fan can be driven to rotate through gear three, and on the other hand, the air outlet fan can be driven to rotate through gear four. With the cooperation of the air intake fan and the air outlet fan, the gas outside the shell enters the shell through the air intake groove, and after carrying the heat accumulated in the shell, it is discharged out of the shell from the air outlet groove, thereby accelerating the speed of gas exchange between the inside and outside of the shell, and also accelerating the efficiency of heat discharge from the inside of the shell to the outside.

[0011] In a preferred example, the present application can be further configured as follows: a rotating drum is installed on the rotating shaft, the rope is wound around the rotating shaft through the rotating drum, an annular groove for winding the rope is opened on the rotating drum, and anti-slip protrusions are provided on both sides of the annular groove, and the anti-slip protrusions are both provided on the rotating drum.

[0012] With this technical solution, the inner wall of the annular groove blocks the rope as it enters and exits the housing, reducing the possibility of it swaying along the length of the shaft during extension and retraction, thereby further enhancing the safety of the operator descending through the descender. Furthermore, since the annular groove is formed on the rotating drum rather than directly on the shaft to maintain the integrity of the shaft, anti-slip protrusions are provided on both sides of the annular groove. These anti-slip protrusions reduce the possibility of the rope escaping from the annular groove.

[0013] In a preferred example, the present application can be further configured as follows: a liquid storage tank and a nozzle are installed in the shell, the nozzle is connected to the liquid storage tank, and a slope is provided on the anti-slip protrusion, and the liquid ejected from the nozzle can flow into the annular groove along the slope.

[0014] Through the above technical solution, the operator can store lubricating liquid (such as lubricating oil or water) in the liquid storage tank. The operator transfers the lubricating liquid in the liquid storage tank to the nozzle, and the nozzle sprays the lubricating liquid onto the inclined surface of the anti-slip protrusion. The lubricating liquid flows along the inclined surface into the annular groove. In this way, when the rope moves in the annular groove, on the one hand, the lubricating liquid can cool the rope. On the other hand, under the lubricating effect of the lubricating liquid, the heat generated by the friction between the rope and the inner wall of the annular groove can be reduced, thereby reducing heat output from the source.

[0015] In a preferred example, the present application can be further configured as follows: a plurality of guide grooves are provided on the inclined surface, and the guide grooves are all connected to the annular groove.

[0016] Through the above technical solution, since the guide groove is connected to the annular groove, when the lubricating liquid flows into the guide groove, it can flow into the annular groove, thereby making full use of the lubricating liquid sprayed by the nozzle, thereby improving the utilization efficiency of the lubricating liquid.

[0017] In a preferred example, the present application can be further configured as follows: a driving device for driving the nozzle to spray out the liquid in the liquid storage tank is provided in the shell, and the driving device includes a piston rod, a pressure plate, a spring and a cam. The pressure plate is slidably installed in the liquid storage tank, the piston rod is provided on the pressure plate, and a spherical surface is provided on the top of the piston rod. The cam is rotatably provided in the shell, and the cam and the spherical surface can cooperate with each other. The spring is provided in the liquid storage tank, and one end of the spring is fixedly connected to the inner wall of the liquid storage tank, and the other end is fixedly connected to the pressure plate.

[0018] With this technical solution, when the operator needs to spray liquid from the liquid storage tank through the nozzle, they rotate the cam, which contacts the spherical surface and pushes the piston rod downward. The piston rod overcomes the elastic force of the spring and pushes the pressure plate downward. The spring then drives the pressure plate and piston rod back to their original position, achieving reciprocating movement of the pressure plate. As the pressure plate moves downward, it squeezes the liquid from the liquid storage tank and delivers it to the nozzle, thereby achieving cooling and lubrication through the liquid in the liquid storage tank.

[0019] In a preferred example, the present application can be further configured as follows: an insertion rod is slidably installed in the shell, the cam is fixedly connected to the insertion rod, a socket for the insertion rod is opened on the rotating cylinder, a driving rod is rotatably installed on the insertion rod, and the driving rod is slidably installed on the shell.

[0020] Through the above technical solution, when the operator needs to transport the liquid in the liquid storage tank through the cam, he first slides the sliding drive rod on the side where the rotating cylinder is located. On the one hand, the insertion rod is inserted into the socket, and on the other hand, the cam can touch the spherical surface. In this way, when the rope drives the rotating cylinder to rotate, the rotating cylinder drives the cam to rotate through the insertion rod. The cam in the rotating state, with the cooperation of the piston rod and the spring, drives the pressure plate to move back and forth, thereby realizing the delivery of the liquid in the liquid storage tank to the nozzle.

[0021] In a preferred example, the present application can be further configured as follows: a limiting block is installed in the shell, a through hole is provided on the limiting block for the driving rod to slide, an elastic sheet is installed on the inner wall of the through hole, elastic protrusion 1 and elastic protrusion 2 are provided on the elastic sheet, a limiting plate 1 is installed on the driving rod, and a groove for accommodating the limiting plate 1 is formed between the elastic protrusion 1 and the elastic protrusion 2.

[0022] Through the above technical solution, when the operator slides the drive rod to insert the insertion rod into the socket, the limit plate 1 moves with the drive rod and squeezes the elastic protrusion 1, causing the elastic protrusion 1 to undergo elastic deformation, so that the limit plate 1 slides between the elastic protrusion 1 and the elastic protrusion 2, that is, into the groove. In this way, the limit plate 1 is hindered by the elastic protrusion 1 and the elastic protrusion 2, which reduces the possibility of the drive rod sliding, thereby reducing the possibility of the insertion rod detaching from the socket.

[0023] In a preferred example, the present application can be further configured as follows: a second limiting plate is installed on the driving rod, the second limiting plate is located on a side of the driving rod close to the cam, and the groove can accommodate the second limiting plate.

[0024] Through the above technical solution, the operator disengages the limit plate 1 from the groove and embeds the limit plate 2 into the groove by sliding the drive rod. During this process, the insertion rod can be further inserted into the socket, so that the cam follows the insertion rod and moves further to the side close to the piston rod, so that the cam can contact the top of the spherical surface, thereby increasing the stroke of the piston rod and the pressure plate, and can more fully transport the liquid in the liquid storage tank to the nozzle, so that the volume of liquid ejected by the nozzle in a single time can be adjusted by the cam contacting different positions of the spherical surface.

[0025] In a preferred example, the present application can be further configured as follows: a temperature sensor is installed in the shell, a warning light is installed on the shell, and the warning light is electrically connected to the temperature sensor.

[0026] Through the above technical solution, the temperature sensor can sense the temperature inside the shell. By setting a temperature threshold for the temperature sensor, when the heat accumulated in the shell causes the temperature to rise to the temperature threshold set by the temperature sensor, the temperature sensor controls the warning light to send a warning signal, thereby reminding the next operator using the descender to use it with caution and take measures such as replacing the rope or other descent control measures, thereby reducing the possibility of emergency accidents occurring during the use of the descender by the operator.

[0027] In summary, this application has the following beneficial technical effects:

[0028] 1. Through the air inlet fan and the air outlet fan that can rotate simultaneously with the shaft, the air enters the shell through the air inlet slot, carries the heat generated in the shell and then discharges it out of the shell, which alleviates the heat accumulation in the descender and reduces the possibility of telescopic fracture and damage to the components in the descender, thereby improving the safety of the operator when using the descender;

[0029] 2. The nozzle sprays the liquid stored in the liquid storage tank, which can not only cool the rope, but also lubricate the rope and the rotating drum;

[0030] 3. By the cam contacting different positions of the spherical surface, the volume of liquid ejected by the nozzle in a single time can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application, mainly illustrating the structure of the shell, the hanging ring and the warning light.

[0032] Figure 2 It is a partial structural diagram of an embodiment of the present application, mainly illustrating the structure of the rotating shaft, the air inlet fan and the air outlet fan.

[0033] Figure 3 yes Figure 2 The enlarged schematic diagram of part A mainly illustrates the structure of the rotating cylinder, inclined surface and insertion rod.

[0034] Figure 4 yes Figure 1 The cross-sectional diagram of the middle shell mainly illustrates the structure of the liquid storage tank.

[0035] Figure 5 It is a cross-sectional diagram of the liquid storage tank, which mainly illustrates the structure of the drive device.

[0036] Figure 6 It is a cross-sectional schematic diagram of the limit block, which mainly illustrates the structure of the elastic piece, the limit plate 1 and the limit plate 2.

[0037] Description of reference numerals:

[0038] 1. Housing; 101. Air inlet slot; 102. Air outlet slot; 103. Lifting ring; 11. Rotating shaft; 111. Rope; 12. Passageway; 13. Gear 1; 14. Gear 2; 15. Air inlet fan; 151. Gear 3; 16. Air outlet fan; 17. Gear 4; 18. Driving rod; 181. Limit plate 1; 182. Limit plate 2; 183. Ring; 19. Temperature sensor; 191. Warning light; 2. Rotating cylinder; 21. Annular groove; 22, anti-slip protrusion; 221, inclined surface; 222, guide groove; 3, liquid storage tank; 301, socket; 31, nozzle; 32, liquid inlet pipe; 321, end cover; 4, driving device; 41, piston rod; 411, spherical surface; 42, pressure plate; 43, spring; 44, cam; 441, insertion rod; 5, limit block; 51, through hole; 6, elastic sheet; 61, elastic protrusion 1; 62, elastic protrusion 2; 63, groove. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.

[0040] The embodiment of the present application discloses a self-cooling intelligent alarm descending device.

[0041] Refer to the attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, a self-cooling intelligent alarm descender includes a shell 1, a rotating shaft 11 is rotatably installed in the shell 1, the rotating shaft 11 is horizontally arranged, a rotating drum 2 is fixedly connected to the rotating shaft 11, the axis of the rotating drum 2 and the axis of the rotating shaft 11 are collinear, a rope 111 is wound around the rotating shaft 11 through the rotating drum 2, an annular groove 21 for winding the rope 111 is provided on the rotating drum 2, and a passage 12 for the rope 111 to enter and exit is provided at the bottom of the shell 1, which also helps to dissipate heat in the shell 1.

[0042] Refer to the attached Figure 1 and attached Figure 2 As shown, gear 13 is coaxially fixedly connected to the rotating shaft 11, and gear 2 14 is rotatably installed in the housing 1. Gear 1 13 is engaged with gear 2 14. The radius of gear 2 14 is larger than that of gear 1 13. Gear 2 14 is used to slow down gear 13 and cooperate with other descent control mechanisms (not shown in the drawings) to slow down the rope 111.

[0043] Refer to the attached Figure 1 and attached Figure 2 As shown, a gear three 151 and an air intake fan 15 coaxially connected to the gear three 151 are rotatably installed in the shell 1, the gear three 151 is engaged with the gear two 14, and a plurality of air intake slots 101 are opened on the shell 1, and the air intake slots 101 are opened at the location of the air intake fan 15 on the shell 1.

[0044] Refer to the attached Figure 1 and attached Figure 2 As shown, a gear four 17 and an exhaust fan 16 coaxially connected to the gear four 17 are rotatably installed in the shell 1. The exhaust fan 16 and the intake fan 15 are respectively located on both sides of the gear two 14. The gear four 17 is engaged with the gear two 14 and can be provided with a plurality of exhaust slots 102. The exhaust slots 102 are opened at the location of the exhaust fan 16 on the shell 1.

[0045] When the operator using the present descender is descending through the rope 111, the rope 111 drives the gear 2 14 to rotate through the rotating drum 2, the rotating shaft 11 and the gear 1 13, and the gear 2 14 drives the air intake fan 15 and the air outlet fan 16 to rotate through the gear 3 151 and the gear 4 17 respectively, so that the gas outside the shell 1 enters the shell 1 through the air intake groove 101, and is discharged from the air outlet groove 102 after carrying the heat generated in the shell 1, thereby realizing heat exchange between the inside and outside of the shell 1, alleviating the heat accumulation in the descender, thereby reducing the possibility of telescopic fracture and damage to the components in the descender, and thus improving the safety of the operator when using the descender.

[0046] Refer to the attached Figure 1 and attached Figure 2 As shown, the shell 1 is formed by covering and splicing the front shell 1 and the rear shell 1. A lifting ring 103 is provided on the rear shell 1 to facilitate the installation of the shell 1 of the descender on the wall of the building. The lifting ring 103 and the rear shell 1 are integrally formed. A temperature sensor 19 is installed on the inner wall of the front shell 1, and a warning light 191 is installed on the outer wall of the front shell 1. The warning light 191 and the temperature sensor 19 are electrically connected. When the temperature inside the shell 1 rises to the temperature threshold set by the temperature sensor 19, the warning light 191 sends a warning signal to remind the next operator who uses the descender to use it with caution and to take measures such as replacing the rope 111 or other descending measures, thereby reducing the possibility of emergency accidents occurring during the use of the descender by the operator.

[0047] Refer to the attached Figure 1 As shown, the air inlet groove 101 and the air outlet groove 102 are both opened on the front shell 1, which can avoid the phenomenon of poor air circulation caused by the rear shell 1 being close to the wall.

[0048] Refer to the attached Figure 3 As shown, anti-slip protrusions 22 are provided on both sides of the annular groove 21. The anti-slip protrusions 22 are both provided on the rotating drum 2. The rope 111 is hindered by the anti-slip protrusions 22, thereby reducing the possibility of the rope 111 escaping from the annular groove 21.

[0049] Refer to the attached Figure 3 and attached Figure 4As shown, a liquid storage tank 3 and a nozzle 31 are installed in the housing 1. The liquid storage tank 3 is used to store liquid (such as lubricating fluid or water). A delivery pipe is provided between the nozzle 31 and the liquid storage tank 3, and the nozzle 31 is connected to the liquid storage tank 3 through the delivery pipe. A liquid inlet pipe 32 is installed on the liquid storage tank 3, and the liquid inlet pipe 32 is connected to the liquid inlet pipe 32. The end of the liquid inlet pipe 32 away from the liquid storage tank 3 extends out of the housing 1 to facilitate the injection of liquid into the liquid storage tank 3. The end of the liquid inlet pipe 32 extending out of the housing 1 is threadedly connected to an end cap 321.

[0050] Refer to the attached Figure 3 and attached Figure 4 As shown, the anti-slip protrusion 22 is provided with an inclined surface 221. The nozzle 31 is located above the inclined surface 221. The inclined surface 221 is provided with a plurality of guide grooves 222. The guide grooves 222 are all connected to the annular groove 21, allowing the liquid ejected by the nozzle 31 to flow into the annular groove 21 along the inclined surface 221 and the guide grooves 222. The guide grooves 222 are evenly distributed along the axial direction of the rotating drum 2. The operator delivers liquid from the liquid storage tank 3 to the nozzle 31 through a delivery pipe. The nozzle 31 sprays the lubricating liquid onto the inclined surface 221. The liquid flows along the inclined surface 221 and the guide grooves 222 into the annular groove 21. As the rope 111 moves within the annular groove 21, the rope 111 is not only cooled, but also, due to the lubrication of the lubricating liquid, the heat generated by the friction between the rope 111 and the inner wall of the annular groove 21 is reduced.

[0051] Refer to the attached Figure 4 and attached Figure 5 As shown, a driving device 4 is provided in the housing 1, and the driving device 4 is used to spray the liquid in the liquid storage tank 3 through the nozzle 31. The driving device 4 includes a piston rod 41, a pressure plate 42, a spring 43 and a cam 44. The pressure plate 42 is slidably installed in the liquid storage tank 3 along the vertical direction. The piston rod 41 is fixedly connected to the top surface of the pressure plate 42. The top of the piston rod 41 extends out of the liquid storage tank 3, and the top of the piston rod 41 is provided with a spherical surface 411. The cam 44 is rotatably provided in the housing 1. The cam 44 and the spherical surface 411 can cooperate with each other. The spring 43 is provided in the liquid storage tank 3 and is sleeved on the piston rod 41. One end of the spring 43 is fixedly connected to the inner wall of the liquid storage tank 3, and the other end is fixedly connected to the top surface of the pressure plate 42.

[0052] Refer to the attached Figure 4 , Attachment Figure 5 And attached Figure 6As shown, a drive rod 18 is slidably mounted within the housing 1. To simplify the drawing, the supporting structure for the drive rod 18 is not shown. The drive rod 18 is U-shaped, with one end extending outside the housing 1. A ring 183 is fixedly connected to the end of the drive rod 18 extending outside the housing 1, facilitating the operator's pulling of the drive rod 18. The other end is located within the housing 1. An insertion rod 441 is rotatably mounted on the end of the drive rod 18 located within the housing 1. A cam 44 is fixedly connected to the insertion rod 441. A socket 301 is provided on the rotating cylinder 2 for inserting the insertion rod 441. The end of the insertion rod 441 away from the drive rod 18 is prism-shaped, facilitating insertion of the insertion rod 441 into the socket 301.

[0053] When the operator needs to spray the liquid in the liquid storage tank 3 through the nozzle 31, the driving rod 18 is slid, and the insertion rod 441 follows the driving rod 18 to slide, so that the insertion rod 441 is inserted into the socket 301, and the cam 44 follows the insertion rod 441 to slide, so that the rotating cam 44 can contact the side wall of the spherical surface 411. In this way, in the process of the rope 111 entering and exiting the shell 1, the rope 111 drives the pressure plate 42 to slide downward through the rotating cylinder 2, the insertion rod 441, the cam 44 and the piston rod 41, squeezing the liquid in the liquid storage tank 3 to be transported to the nozzle 31, so as to achieve cooling and lubrication effects through the liquid in the liquid storage tank 3.

[0054] Refer to the attached Figure 5 and attached Figure 6 As shown, the inner wall of the housing 1 is fixedly connected to a limit block 5, which is provided with a through hole 51. The drive rod 18 is slidably installed in the through hole 51 along the length direction of the through hole 51. An elastic sheet 6 made of spring 43 steel is installed on the inner wall of the through hole 51. The elastic sheet 6 is provided with an elastic protrusion 1 61 and an elastic protrusion 2 62. The elastic protrusion 1 61, the elastic protrusion 2 62 and the elastic sheet 6 are integrally formed. A limit plate 181 and a limit plate 2 182 are installed on the drive rod 18. The limit plate 2 182 is located on the side of the drive rod 18 close to the cam 44. A groove 63 for accommodating the limit plate 181 and the limit plate 2 182 is formed between the elastic protrusion 1 61 and the elastic protrusion 2 62.

[0055] During the process of inserting the insertion rod 441 into the socket 301, the limit plate 181 moves along with the driving rod 18 and squeezes the elastic protrusion 1 61, causing the elastic protrusion 1 61 to undergo elastic deformation, so that the limit plate 181 can slide into the groove 63. Under the obstruction of the elastic protrusion 1 61 and the elastic protrusion 2 62, the limit plate 181 reduces the possibility of the driving rod 18 sliding, thereby reducing the possibility of the insertion rod 441 detaching from the socket 301.

[0056] In addition, the operator further pulls the drive rod 18, causing the second limit plate 182 to fit into the groove 63. At this time, the rotating cam 44 can contact the top of the spherical surface 411, increasing the stroke of the piston rod 41 and the pressure plate 42, thereby more fully delivering the liquid in the liquid storage tank 3 to the spray head 31. Therefore, by adjusting the position of the cam 44 contacting the spherical surface 411, the volume of liquid sprayed out by the spray head 31 in a single spray can be adjusted.

[0057] The implementation principle of this embodiment is: through the air intake fan 15 and the air outlet fan 16 that can rotate simultaneously with the rotating shaft 11, the gas outside the shell 1 enters the shell 1 through the air intake groove 101 and is discharged from the air outlet groove 102, realizing heat exchange between the inside and outside of the shell 1, alleviating the heat accumulation phenomenon in the descender, thereby reducing the possibility of telescopic fracture and damage to the components in the descender, and improving the safety of the operator when using the descender.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application in turn. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A self-cooling intelligent alarm descending device, characterized by: The invention comprises a housing (1), a rotating shaft (11) is rotatably mounted in the housing (1), a rope (111) is wound around the rotating shaft (11), a passage (12) is reserved on the housing (1) for the rope (111) to enter and exit, a gear 1 (13) is mounted on the rotating shaft (11), a gear 2 (14) is rotatably mounted in the housing (1), the gear 1 (13) and the gear 2 (14) are meshed with each other, an air intake fan (15) is rotatably mounted in the housing (1), a gear 3 (151) is mounted on the air intake fan (15), and the gear 3 (151) and the gear 2 (14) are meshed with each other; An air outlet fan (16) is rotatably mounted in the housing (1), a gear four (17) is mounted on the air outlet fan (16), the gear four (17) and the gear two (14) are meshed with each other, a plurality of air inlet slots (101) and a plurality of air outlet slots (102) are provided on the housing (1), and the air inlet fan (15) is arranged corresponding to the air inlet slots (101); The air outlet fan (16) is arranged corresponding to the air outlet groove (102), a rotating drum (2) is installed on the rotating shaft (11), the rope (111) is wound around the rotating shaft (11) through the rotating drum (2), an annular groove (21) for winding the rope (111) is provided on the rotating drum (2), anti-slip protrusions (22) are provided on both sides of the annular groove (21), and the anti-slip protrusions (22) are both provided on the rotating drum (2); A liquid storage tank (3) and a nozzle (31) are installed in the housing (1); the nozzle (31) is connected to the liquid storage tank (3); a slope (221) is provided on the anti-dropout protrusion (22); and the liquid ejected by the nozzle (31) can flow into the annular groove (21) along the slope (221); A plurality of guide grooves (222) are provided on the inclined surface (221), and the guide grooves (222) are all connected to the annular groove (21); A driving device (4) for driving the spray head (31) to spray the liquid in the liquid storage tank (3) is provided in the housing (1), and the driving device (4) comprises a piston rod (41), a pressure plate (42), a spring (43) and a cam (44). The pressure plate (42) is slidably mounted in the liquid storage tank (3), the piston rod (41) is arranged on the pressure plate (42), a spherical surface (411) is provided on the top of the piston rod (41), and the cam (44) is rotatably arranged in the housing (1). The cam (44) and the spherical surface (411) can cooperate with each other. The spring (43) is arranged in the liquid storage tank (3), and one end of the spring (43) is fixedly connected to the inner wall of the liquid storage tank (3), and the other end is fixedly connected to the pressure plate (42); An insertion rod (441) is slidably mounted in the housing (1), the cam (44) is fixedly connected to the insertion rod (441), a socket (301) for the insertion rod (441) is provided on the rotating cylinder (2), a driving rod (18) is rotatably mounted on the insertion rod (441), and the driving rod (18) is slidably mounted on the housing (1).

2. The self-cooling intelligent alarm descending device according to claim 1, characterized in that: A limit block (5) is installed in the housing (1), and a through hole (51) is provided on the limit block (5) for the driving rod (18) to slide. An elastic sheet (6) is installed on the inner wall of the through hole (51), and an elastic protrusion (1) and an elastic protrusion (2) (62) are provided on the elastic sheet (6). A limit plate (181) is installed on the driving rod (18), and a groove (63) for accommodating the limit plate (181) is formed between the elastic protrusion (1) and the elastic protrusion (2) (62).

3. The self-cooling intelligent alarm descending device according to claim 2, characterized in that: A second limiting plate (182) is installed on the driving rod (18), and the second limiting plate (182) is located on a side of the driving rod (18) close to the cam (44), and the groove (63) can accommodate the second limiting plate (182).

4. The self-cooling intelligent alarm descending device according to claim 1, characterized in that: A temperature sensor (19) is installed in the housing (1), a warning light (191) is installed on the housing (1), and the warning light (191) is electrically connected to the temperature sensor (19).

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