Intelligent fireproof protection system for underground parking space

Abstract

The invention belongs to the technical field of parking space fire prevention, and particularly relates to an underground parking space intelligent fireproof protection system which comprises a mounting frame, the mounting frame is in a concentric-square shape, four pieces of fireproof cloth are arranged at the bottom of the mounting frame, balancing weights are arranged at the bottoms of the four pieces of fireproof cloth, a smoke alarm is arranged at the top of the mounting frame, and transmission assemblies are arranged on the fireproof cloth. The four pieces of fireproof cloth ascend or descend at the same time through a transmission assembly, the bottom end of the mounting frame is fixedly connected with telescopic supporting legs and three inflatable stand columns, the joints of the four pieces of fireproof cloth are connected through one telescopic supporting leg and the three inflatable stand columns, and limiting assemblies are arranged in the telescopic supporting legs. Through cooperative use of the structures, the four fireproof covers can be effectively controlled to surround the vehicle when the vehicle is on fire, spreading of the fire is effectively controlled, and therefore surrounding vehicles and facilities are protected.

Description

Technical Field

[0001] The present invention belongs to the technical field of parking space fire prevention, specifically an intelligent fire prevention and protection system for underground parking spaces. Background Art

[0002] Although the large-capacity lithium-ion battery packs carried by new energy vehicles perform excellently in terms of energy density and endurance, there are also certain potential safety hazards. Under specific conditions such as overcharging, short-circuiting, and mechanical damage, the battery packs may experience thermal runaway, which may further trigger vehicle spontaneous combustion accidents. According to statistics, in new energy vehicle fire accidents, fires caused by battery thermal runaway account for a relatively high proportion, becoming a key issue that urgently needs to be solved in the field of new energy vehicle safety.

[0003] Once a new energy vehicle battery catches fire, its flame temperature is extremely high, possibly exceeding 800 °C, and the combustion speed is extremely fast, with a fierce fire. Especially in the enclosed environment of an underground parking lot, due to the narrow space and poor ventilation conditions, the fire is more likely to spread rapidly to surrounding vehicles and facilities, causing serious chain reactions. In addition, a large amount of toxic and harmful gases are released during the battery combustion process, further increasing the danger of the fire and the difficulty of extinguishing it. Therefore, new energy vehicle battery fires not only cause devastating damage to the vehicle itself but also pose a serious threat to the surrounding environment, personnel safety, and public property, and must be taken seriously and effective preventive and response measures must be taken.

[0004] Therefore, the present invention provides an intelligent fire prevention and protection system for underground parking spaces. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: The intelligent fire prevention and protection system for underground parking spaces of the present invention includes a mounting frame. The mounting frame is in a shape of a rectangle with a hollow center. Four fireproof cloths are provided at the bottom of the mounting frame, and counterweights are provided at the bottoms of the four fireproof cloths. A smoke alarm is provided at the top of the mounting frame; an alarm communication module is provided inside the smoke alarm, and the alarm communication module can send alarm information to the background terminal device;

[0007] A transmission component is provided on the fireproof cloth;

[0008] The bottom end of the mounting frame is fixedly connected with telescopic legs and inflatable columns. There are three inflatable columns. The joints of the four fireproof cloths are connected by one telescopic leg and three inflatable columns;

[0009] A limiting component is provided inside the telescopic leg for restricting the rising or falling of the four fireproof cloths.

[0010] Preferably, the transmission assembly includes a rotating shaft, the fireproof cloth is installed on the outer wall of the rotating shaft, and four fireproof cloths can be raised or lowered simultaneously through the transmission assembly.

[0011] Preferably, the limiting assembly comprises a ratchet, a first limiting block and a second limiting block, the ratchet is fixedly mounted on the outer wall of the rotating shaft, and the first limiting block and the second limiting block are elastically mounted on both sides of the ratchet.

[0012] Preferably, a push block is rotatably installed inside the telescopic leg, the push block is located between the first limit block and the second limit block, a rotating rod is fixedly installed on one end of the push block, and the end of the rotating rod away from the push block extends out of the outer wall of the telescopic leg.

[0013] Preferably, a hollow fixed block is fixedly installed inside the telescopic leg, a blocking plug is elastically installed inside the fixed block, a pull rope is fixedly connected to the top of the blocking plug, and the other end of the pull rope is wound and connected to the rotating rod.

[0014] Preferably, a sliding rod is fixedly mounted on the top of the blocking plug, one end of the sliding rod extends to the interior of the fixed block, and a return spring is arranged between the sliding rod and the fixed block.

[0015] Preferably, the interiors of the mounting frame and the telescopic legs are both hollow, the mounting frame and the inner cavities of the telescopic legs are connected, a gas generator is provided on the top of the mounting frame, an air pipe is connected to the gas generator, and the other end of the air pipe extends to the interior of the mounting frame.

[0016] Preferably, a fuel chamber for storing sodium azide and an oxidant is provided inside the gas generator, and a heating wire for heating sodium azide is provided inside the gas generator, and the heating wire is activated by an electrical signal emitted by the smoke alarm.

[0017] Preferably, a zipper-type opening and closing is provided on the fireproof cloth.

[0018] Preferably, the transmission assembly also includes a first bevel gear and a second bevel gear, the fireproof cloth is fixedly mounted on the outer wall of the rotating shaft, the first bevel gear is fixedly mounted on one end of the rotating shaft, and the second bevel gear is fixedly mounted on an end of the rotating shaft away from the first bevel gear.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The intelligent fire protection system for underground parking spaces described in the present invention monitors the information of vehicle fires through smoke alarms, releases the restriction of the limit assembly on the descent of four fireproof cloths, and through the provided counterweight blocks, the four fireproof cloths can be rapidly lowered to surround the parking space, effectively controlling the spread of fire, thereby protecting surrounding vehicles and facilities.

[0021] 2. The intelligent fire protection system for underground parking spaces described in the present invention controls the heating wire to heat sodium azide after receiving a fire signal through the gas generator, and the sodium azide decomposes to generate nitrogen and sodium. The nitrogen is further generated through the reaction of sodium with the oxidant, and enters the interior of the mounting frame through the air pipe, and then enters the interior of the telescopic leg, pushing the blocking plug to slide downward inside the fixed block, and under the action of the pull rope, controls the push block to fit with the second limit block, releases the ratchet from blocking the descent of the fireproof cloth, and under the pressure of nitrogen, drives the fireproof cloth connected to the telescopic leg to descend rapidly, and under the cooperation of the first bevel gear and the second bevel gear, controls the remaining three fireproof cloths to descend simultaneously, which can speed up the speed of the fireproof cloth surrounding the burning vehicle and further control the spread of the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a stereogram in the present invention;

[0024] Figure 2 It is a schematic diagram of the development of the fireproof cover in the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the gas generator in the present invention;

[0026] Figure 4 The present invention Figure 3 A in the enlarged view;

[0027] Figure 5 It is a structural schematic diagram of the push block in the present invention;

[0028] Figure 6 It is a schematic structural diagram of the first bevel gear in the present invention.

[0029] In the figure: 1. mounting frame; 2. gas generator; 3. air pipe; 4. smoke alarm; 5. fireproof cloth; 6. telescopic legs; 7. counterweight; 8. zipper opening and closing mouth; 9. pull rope; 10. inflatable column; 11. reset spring; 12. rotating shaft; 13. first bevel gear; 14. second bevel gear; 15. ratchet; 16. rotating rod; 17. fixing block; 18. blocking plug; 19. pushing block; 20. first limit block; 21. second limit block; 22. sliding rod. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figures 1 to 6As shown, the intelligent fire protection system for underground parking spaces described in the embodiment of the present invention includes a mounting frame 1, which is in the shape of a U-shaped U-shaped frame. Four fireproof cloths 5 are arranged at the bottom of the mounting frame 1, and counterweight blocks 7 are arranged at the bottom of the four fireproof cloths 5. A smoke alarm 4 is arranged at the top of the mounting frame 1; an alarm communication module is arranged inside the smoke alarm 4, and the alarm communication module can send alarm information to a background terminal device (such as a mobile phone terminal, so that users can understand the fire information of the underground garage at any time).

[0032] The smoke alarm 4 can be connected to a control unit to control the lowering of the fireproof cloth 5 through the received electrical signal. The smoke alarm 4 is only a way to detect fire, and is not the only technical solution of the present invention.

[0033] The mounting frame 1 is installed right above the parking space. When the new energy vehicle on the parking space catches fire due to thermal runaway of the battery, the smoke generated by the burning can trigger the smoke alarm 4 to sound an alarm. Not only can the rescue call be connected through the emitted electrical signal, but the four fireproof cloths 5 can also be controlled to fall. When the four fireproof cloths 5 all fall to the ground, they will surround the burning new energy vehicle, effectively control the spread of the fire, and thus protect surrounding vehicles and facilities.

[0034] The fireproof cloth 5 is provided with a transmission assembly, and the four fireproof cloths 5 are raised or lowered by the transmission assembly;

[0035] The bottom end of the mounting frame 1 is fixedly connected with a telescopic leg 6 and an inflatable column 10, and three inflatable columns 10 are provided. The joints of the four fireproof cloths 5 are connected by a telescopic leg 6 and three inflatable columns 10;

[0036] The inflatable column 10 is made of a deformable fireproof material, the telescopic legs 6 are made of a hard material, and the interior of the telescopic legs 6 is multi-sectioned and can be extended and retracted under the action of air pressure.

[0037] A limit assembly is provided inside the telescopic legs 6 to limit the raising or lowering of the four fireproof cloths 5;

[0038] By setting the limiting assembly, the moving tracks of four fireproof cloths 5 can be limited at a time, so that the fireproof cloths 5 can either only be lifted but not lowered, or can only be lowered but not lifted.

[0039] As a preferred embodiment of the present invention, the transmission assembly includes a rotating shaft 12, the fireproof cloth 5 is installed on the outer wall of the rotating shaft 12, and four fireproof cloths 5 can be raised or lowered at the same time through the transmission assembly;

[0040] As a preferred embodiment of the present invention, the transmission assembly also includes a first bevel gear 13 and a second bevel gear 14, the fireproof cloth 5 is fixedly mounted on the outer wall of the rotating shaft 12, the first bevel gear 13 is fixedly mounted on one end of the rotating shaft 12, and the second bevel gear 14 is fixedly mounted on the end of the rotating shaft 12 away from the first bevel gear 13.

[0041] Each fireproof cloth 5 is provided with a rotating shaft 12, a first bevel gear 13 and a second bevel gear 14. The four fireproof cloths 5 are arranged in a U-shape. The four fireproof cloths 5 are rotatably installed between three inflatable columns 10 and a telescopic leg 6. The four fireproof cloths 5 are driven by the meshing of the first bevel gear 13 and the second bevel gear 14. Therefore, when one fireproof cloth 5 is lifted or lowered, it will drive the other three fireproof cloths 5 to move synchronously.

[0042] As a preferred embodiment of the present invention, the limiting assembly includes a ratchet 15 , a first limiting block 20 and a second limiting block 21 . The ratchet 15 is fixedly mounted on the outer wall of the rotating shaft 12 , and the first limiting block 20 and the second limiting block 21 are elastically mounted on both sides of the ratchet 15 .

[0043] The first limit block 20 and the second limit block 21 are symmetrically arranged on both sides of the ratchet 15. The first limit block 20 and the second limit block 21 are connected to the telescopic support leg 6 through a tension spring. Through the setting of the tension spring, the first limit block 20 and the second limit block 21 maintain the top pressure on the ratchet 15. When the first limit block 20 and the second limit block 21 both maintain the top pressure on the ratchet 15, the ratchet 15 cannot rotate at this time. The top pressure of the first limit block 20 or the second limit block 21 on the ratchet 15 must be released so that the ratchet 15 can drive the rotating shaft 12 to rotate.

[0044] As a preferred embodiment of the present invention, a push block 19 is rotatably installed inside the telescopic leg 6, and the push block 19 is located between the first limit block 20 and the second limit block 21. A rotating rod 16 is fixedly installed at one end of the push block 19, and the end of the rotating rod 16 away from the push block 19 extends out of the outer wall of the telescopic leg 6.

[0045] The push block 19 is arranged between the first limit block 20 and the second limit block 21. When the push block 19 is controlled to rotate toward the first limit block 20, the side wall of the push block 19 is in contact with the first limit block 20, so that the first limit block 20 is not pressed by the push block 19, and the second limit block 21 will be pushed out by the other end of the push block 19, so that the second limit block 21 is away from the ratchet 15. At this time, the first limit block 20 will block the counterclockwise rotation of the ratchet 15.

[0046] When the push block 19 rotates toward the second limit block 21 , the first limit block 20 is pushed out and away from the ratchet 15 , and the second limit block 21 is fitted with the side wall of the push block 19 , thereby blocking the clockwise rotation of the ratchet 15 .

[0047] By rotating the rotating rod 16 extending from the telescopic legs 6 , the rotation of the push block 19 can be manually controlled.

[0048] As a preferred embodiment of the present invention, a hollow fixed block 17 is fixedly installed inside the telescopic leg 6, a blocking plug 18 is elastically installed inside the fixed block 17, a pull rope 9 is fixedly connected to the top of the blocking plug 18, and the other end of the pull rope 9 is wound and connected to the rotating rod 16.

[0049] When the blocking plug 18 is fitted with the fixing block 17, the inner cavity of the telescopic leg 6 will be blocked. The blocking plug 18 can be pushed from top to bottom by increasing the pressure above the fixing block 17. When the blocking plug 18 slides out from the inside of the fixing block 17, the inner cavity of the telescopic leg 6 will be opened.

[0050] When one end of the pull rope 9 is wrapped around the rotating rod 16 for half a circle, the rotating rod 16 will drive the push block 19 to fit with the first limit block 20, so that the second limit block 21 is away from the ratchet 15, thereby blocking the counterclockwise rotation of the ratchet 15, and at the same time limiting the rotating shaft 12 from driving the fireproof cloth 5 to descend.

[0051] At this time, by controlling the blocking plug 18 to slide downward from the inside of the fixed block 17, the pull rope 9 can be pulled downward. At this time, the pull rope 9 will drive the rotating rod 16 to rotate, and control the push block 19 to fit with the second limit block 21. The first limit block 20 is away from the ratchet 15. At this time, the second limit block 21 will block the clockwise rotation of the ratchet 15, so that the fireproof cloth 5 can only be lowered but not lifted.

[0052] As a preferred embodiment of the present invention, a sliding rod 22 is fixedly installed on the top of the blocking plug 18 , one end of the sliding rod 22 extends to the inside of the fixed block 17 , and a return spring 11 is arranged between the sliding rod 22 and the fixed block 17 .

[0053] When the blocking plug 18 slides downward inside the fixed block 17, it will drive the sliding rod 22 to squeeze the return spring 11, causing it to deform and store elastic potential energy until the blocking plug 18 is no longer subjected to force. The elastic potential energy is released by the return spring 11, and the blocking plug 18 is reset and re-fitted with the fixed block 17.

[0054] As a preferred embodiment of the present invention, the interior of the mounting frame 1 and the telescopic leg 6 are both hollow, the mounting frame 1 is connected to the inner cavity of the telescopic leg 6, a gas generator 2 is arranged on the top of the mounting frame 1, an air pipe 3 is connected to the gas generator 2, the other end of the air pipe 3 extends to the inside of the mounting frame 1, a fuel chamber for storing sodium azide and an oxidant is provided inside the gas generator 2, a heating wire for heating sodium azide is provided inside the gas generator 2, and the heating wire is activated by an electrical signal emitted by the smoke alarm 4.

[0055] When the smoke alarm 4 detects that the vehicle on the parking space is on fire, it will send out an electrical signal, which is received by the receiver arranged inside the gas generator 2, and the control command is converted to make the heating wire heat the sodium azide, and the sodium azide is decomposed to generate nitrogen and sodium. The nitrogen is further generated by the reaction of sodium with the oxidant, and enters the interior of the mounting frame 1 through the air pipe 3, and then enters the interior of the telescopic leg 6. As the pressure increases, the blocking plug 18 is pushed to slide downward inside the fixed block 17, and under the action of the pull rope 9, the rotating rod 16 is driven to rotate, and the push block 19 is controlled to fit with the second limit block 21, and the first limit block 20 is away from the ratchet 15, so as to release the ratchet 15 from blocking the descent of the fireproof cloth 5. Under the pressure of nitrogen, the telescopic leg 6 is quickly pushed to extend downward, and the fireproof cloth 5 connected to the telescopic leg 6 is driven to quickly descend. Under the cooperation of the first bevel gear 13 and the second bevel gear 14, the remaining three fireproof cloths 5 are controlled to descend at the same time to surround the burning vehicle, effectively control the spread of the fire, and thus protect the surrounding vehicles and facilities.

[0056] As a preferred embodiment of the present invention, a zipper-type opening and closing opening 8 is provided on the fireproof cloth 5 .

[0057] The zipper-type opening and closing opening 8 is arranged at the position of the vehicle door, so as to facilitate the escape of the personnel in the vehicle, or to be a fire extinguishing opening for the personnel outside.

[0058] Working principle: by monitoring the information of vehicle fire through the smoke alarm 4, the restriction of the limit component on the descent of the four fireproof cloths 5 is released, and the four fireproof cloths 5 can be quickly lowered by the counterweight block 7, surrounding the parking space, effectively controlling the spread of fire, thereby protecting surrounding vehicles and facilities.

[0059] The information that the vehicle is on fire is transmitted through the smoke alarm 4. After receiving the signal, the gas generator 2 controls the heating wire to heat the sodium azide. The sodium azide decomposes to generate nitrogen and sodium. The nitrogen is further generated through the reaction of sodium with the oxidant, and enters the interior of the mounting frame 1 through the air pipe 3, and then enters the interior of the telescopic leg 6. As the pressure increases, the blocking plug 18 is pushed to slide downward inside the fixed block 17, and under the action of the pull rope 9, the rotating rod 16 is driven to rotate, and the push block 19 is controlled to fit with the second limit block 21, and the first limit block 20 is away from the ratchet 15, so as to release the ratchet 15 from blocking the descent of the fireproof cloth 5. Under the pressure of nitrogen, the telescopic leg 6 is quickly pushed to extend downward, and the fireproof cloth 5 connected to the telescopic leg 6 is driven to quickly descend. Under the cooperation of the first bevel gear 13 and the second bevel gear 14, the remaining three fireproof cloths 5 are controlled to descend at the same time, which can speed up the speed at which the fireproof cloth 5 surrounds the burning vehicle and further control the spread of the fire.

[0060] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Intelligent fire protection system for underground parking spaces, characterized by: It includes a mounting frame (1). The mounting frame (1) is in a square shape with a hollow center. Four fireproof cloths (5) are provided at the bottom of the mounting frame (1). Counterweights (7) are provided at the bottoms of the four fireproof cloths (5). A smoke alarm (4) is provided at the top of the mounting frame (1). An alarm communication module is provided inside the smoke alarm (4), and the alarm communication module can send alarm information to the background terminal device. A transmission component is provided on the fireproof cloth (5). The bottom end of the mounting frame (1) is fixedly connected with telescopic legs (6) and inflatable columns (10). There are three inflatable columns (10). The joints of the four fireproof cloths (5) are connected by one telescopic leg (6) and three inflatable columns (10). A limiting component is provided inside the telescopic leg (6) for restricting the rising or falling of the four fireproof cloths (5).

2. The intelligent fire protection system for underground parking spaces according to claim 1 is characterized in that: The transmission component includes a rotating shaft (12). The fireproof cloth (5) is installed on the outer wall of the rotating shaft (12), and the four fireproof cloths (5) can be raised or lowered simultaneously through the transmission component.

3. The intelligent fire protection system for underground parking spaces according to claim 2 is characterized in that: The limiting component includes a ratchet wheel (15), a first limiting block (20), and a second limiting block (21). The ratchet wheel (15) is fixedly installed on the outer wall of the rotating shaft (12). The first limiting block (20) and the second limiting block (21) are elastically installed on both sides of the ratchet wheel (15).

4. The intelligent fire protection system for underground parking spaces according to claim 3 is characterized by: A push block (19) is rotatably installed inside the telescopic leg (6). The push block (19) is located between the first limiting block (20) and the second limiting block (21). One end of the push block (19) is fixedly installed with a rotating rod (16), and the end of the rotating rod (16) away from the push block (19) extends out of the outer wall of the telescopic leg (6).

5. The intelligent fire protection system for underground parking spaces according to claim 4 is characterized in that: A hollow fixed block (17) is fixedly installed inside the telescopic leg (6). A blocking plug (18) is elastically installed inside the fixed block (17). The top end of the blocking plug (18) is fixedly connected with a pull rope (9), and the other end of the pull rope (9) is wound around the rotating rod (16).

6. The intelligent fire protection system for underground parking spaces according to claim 5 is characterized by: The top end of the blocking plug (18) is fixedly installed with a sliding rod (22). One end of the sliding rod (22) extends into the fixed block (17). A return spring (11) is provided between the sliding rod (22) and the fixed block (17).

7. The intelligent fire protection system for underground parking spaces according to claim 6 is characterized by: The interiors of the mounting frame (1) and the telescopic leg (6) are both hollow. The inner cavities of the mounting frame (1) and the telescopic leg (6) are communicated. A gas generator (2) is provided at the top of the mounting frame (1). An air pipe (3) is connected to the gas generator (2), and the other end of the air pipe (3) extends into the mounting frame (1).

8. The intelligent fire protection system for underground parking spaces according to claim 7 is characterized by: A fuel cavity for storing sodium azide and an oxidant is provided inside the gas generator (2). A heating wire for heating sodium azide is provided inside the gas generator (2), and the heating wire is activated by the electrical signal emitted by the smoke alarm (4).

9. The intelligent fire protection system for underground parking spaces according to claim 8 is characterized in that: A zipper opening and closing (8) is provided on the fireproof cloth (5).

10. The intelligent fire protection system for underground parking spaces according to claim 2 is characterized in that: The transmission assembly also includes a first bevel gear (13) and a second bevel gear (14); the fireproof cloth (5) is fixedly mounted on the outer wall of the rotating shaft (12); the first bevel gear (13) is fixedly mounted on one end of the rotating shaft (12); and the second bevel gear (14) is fixedly mounted on one end of the rotating shaft (12) away from the first bevel gear (13).

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