Threshold-free fireproof cold storage door
By setting up smoke sensors and automatic liquid water jet system on the cold storage door, the problem of fireproof glass being covered by carbon particles in fires is solved, and the automatic cleaning and transparency of fireproof glass is realized, which promotes rescue progress.
Patent Information
- Application Number
- CN202510470797.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2025-08-01
AI Technical Summary
The special glass of the existing cold storage door is easily covered by carbon particles in the smoke during fire, resulting in blocking of vision, affecting the rescue personnel's rapid judgment of the internal situation of the cold storage and the rescue progress.
A door-free fire-proof cold storage door is designed, equipped with smoke sensors, nozzles, pump bodies and water tank systems, which automatically spray liquid water to erode the fire-proof glass, and combine water barriers and films to automatically clean carbon particles to achieve continuous transparency of the fire-proof glass.
Ensure that the fireproof glass remains transparent during the fire, and rescue personnel can quickly observe the internal situation of the cold storage, avoid complex cleaning processes, and improve rescue efficiency.
Smart Images
Figure CN120403174A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of ship cold storage doors, and specifically relates to a thresholdless fireproof cold storage door. Background Art
[0002] A ship refers to the general term for various vessels, which are means of transportation that can navigate or berth in waters for transportation or operations. They have different technical performances, equipment, and structures according to different usage requirements, specifically including various displacement or non-displacement ships, boats, rafts, watercraft, submersibles, mobile platforms, and other waterborne mobile devices. Existing ships for transportation are equipped with warehouses inside the ship's hull. For example, for the transportation of seafood products, a cold storage needs to be provided inside the ship's hull. Storing seafood products in the cold storage can ensure the freshness of seafood transportation, and cold storage doors need to be set at the entrances and exits of the cold storage.
[0003] Existing cold storage doors are provided with windows for observation, and special heat-resistant glass is installed inside the windows. Staff can observe the situation inside the cold storage through the windows. When a fire breaks out on the ship and the fire spreads to the cold storage, the special glass on the cold storage door will be attached by smoke, resulting in black impurities on the surface of the special glass. Specifically, the black impurities are a large number of carbon particles produced by the incomplete combustion of combustibles (such as plastics, fabrics, etc.) under insufficient oxygen. These tiny carbon particles will rise with the hot air and adhere to the glass surface, forming a black smoked layer that blocks the line of sight. When rescue personnel are conducting rescue operations, in order to prevent the interior of the cold storage from being invaded by the fire, the rescue personnel will not immediately open the cold storage door. In order to initially observe the situation inside the cold storage, such as the presence of smoke or flames, the rescue personnel need to clean the black impurities on the special glass and then observe the situation inside the cold storage through the special glass. The whole process is relatively complex, which is not conducive to the rescue personnel's quick judgment of the fire situation and affects the progress of the rescue.
[0004] Therefore, the present invention provides a thresholdless fireproof cold storage door. 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: A thresholdless fireproof cold storage door of the present invention includes a pair of door bodies and a door frame. The pair of door bodies are installed on the door frame. An observation opening is formed on the surface of the door body, and a pair of fireproof glasses are fixedly connected inside the observation opening. A smoke sensor is installed on the surface of the door body and below the fireproof glass. A water tank is fixedly connected to the outside of the door body and above the fireproof glass. A spray head fixedly connected to the surface of the door body is provided between the bottom end of the water tank and the top end of the fireproof glass. The length of the spray head is the same as the width of the fireproof glass; A first pump fixedly connected to the surface of the door body is provided below the water tank. The input end of the first pump is communicated with the water tank, and the output end of the first pump is communicated with the nozzle.
[0007] Preferably, a winding roller is provided above the nozzle. A film is wound on the surface of the winding roller. A water baffle is fixedly connected to the bottom end of the film. The water baffle includes a vertical portion and a horizontal portion. The top end of the vertical portion is fixedly connected to the bottom end of the film. One end of the horizontal portion is fixedly connected to the bottom end of the vertical portion, and the other end is attached to the surface of the fireproof glass. A plurality of through holes are formed on the surface of the horizontal portion; both ends of the winding roller are fixedly connected with winding shafts. One end of the winding shaft away from the winding roller is rotatably connected with a support plate, and the end of the support plate is fixedly connected to the surface of the door body; a pulling rope is wound on the surface of the winding shaft, and a weight is fixedly connected to the bottom end of the pulling rope.
[0008] Preferably, blocking plates are fixedly connected to both ends of the horizontal portion of the water baffle. One end of the blocking plate is connected to the vertical portion of the water baffle, and the other end is in contact with the fireproof glass.
[0009] Preferably, a pair of connecting frames are fixedly connected to the side of the water baffle facing away from the door body. A magnetic block is fixedly connected to one end of the connecting frame away from the water baffle. A pair of limiting frames are symmetrically and fixedly connected to the outside of the door body on both sides of the fireproof glass. The weight is slidably connected to the limiting frame, and a magnetic sheet is fixedly connected to the surface of the limiting frame. The magnetic block and the magnetic sheet continuously have magnetic attraction.
[0010] Preferably, a water receiving box is fixedly connected to the outside of the door body below the fireproof glass. The length of the water receiving box is greater than the width of the fireproof glass; the opening of the water receiving box is attached to the surface of the door body. A pair of second pumps fixedly connected to the surface of the door body are symmetrically arranged on both sides of the fireproof glass. The input end of the second pump is communicated with the water receiving box, and the output end of the second pump is communicated with a water tank.
[0011] Preferably, an inclined block is fixedly connected to the top end of the water receiving box. The end of the inclined block away from the door body is the top end of the inclined surface of the inclined block. There is a gap for receiving water between the bottom end of the inclined surface of the inclined block and the water inlet of the water receiving box.
[0012] Preferably, a support plate is fixedly connected to the inside of the water receiving box. A pressure sensor is fixedly connected to the top end of the support plate. A floating block is fixedly connected to the pressure-receiving end of the pressure sensor. The bottom end of the floating block is located above the inner bottom wall of the water receiving box.
[0013] Preferably, a waterproof film is provided on the surface of the pressure sensor.
[0014] Preferably, an isolation cover is installed on the outside of the door body. The isolation cover isolates the structure outside the fireproof glass from the outside.
[0015] Preferably, the isolation cover is made of high temperature resistant material.
[0016] The beneficial effects of the present invention are as follows: 1. The threshold-free fireproof cold storage door described in the present invention is provided with a nozzle. When a ship is on fire, the nozzle sprays liquid water onto the fireproof glass to prevent smoke from adhering to the surface of the fireproof glass to form black impurities that block the line of sight, that is, to prevent a smoky layer from forming on the surface of the fireproof glass, thereby ensuring the transparency of the fireproof glass. When rescue personnel need to observe the situation inside the cold storage, they can observe through the fireproof glass in the observation port. The surface of the fireproof glass is continuously flushed with liquid water, and it is difficult to form black impurities that block the line of sight. The entire process is automated, which is conducive to rescue personnel's rapid judgment of the ship's fire situation and avoids affecting the rescue progress.
[0017] 2. The threshold-less fireproof cold storage door described in the present invention is equipped with a water receiving box, which will receive the liquid water sprayed from the nozzle. At the same time, the second pump body is started, and the second pump body will pump the liquid water collected in the water receiving box back into the water tank for recycling, so that the flushing and cleaning of the fireproof glass is continuously carried out, which is beneficial to maintaining the transparency of the fireproof glass under long-term fire on ships. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further described below with reference to the accompanying drawings.
[0019] Figure 1 It is a perspective view of the present invention; Figure 2 It is a schematic diagram of the door body of the present invention; Figure 3 It is a schematic diagram of the position of the fireproof glass of the present invention; Figure 4 It is a schematic diagram of the structure of the door body of the present invention; Figure 5 This is a schematic diagram of the position of the pump body on the door body of the present invention; Figure 6 It is a schematic diagram of the main view of the door body of the present invention; Figure 7 It is a schematic diagram of the nozzle of the present invention; Figure 8 This is a three-dimensional diagram of the connection structure between the nozzle and the water baffle of the present invention; Figure 9 It is an enlarged schematic diagram of the connection structure between the nozzle and the water baffle of the present invention; Figure 10 It is a schematic diagram of the limit frame of the present invention; Figure 11 This is a schematic diagram of the connection between the sinker and the pull rope of the present invention; Figure 12 It is a schematic diagram of the water receiving box of the present invention; Figure 13It is a schematic diagram of the internal structure of the water receiving box of the present invention; Figure 14 It is a schematic diagram of the structure above the floating block of the present invention.
[0020] In the figure: 1. Door body; 11. Door frame; 12. Observation port; 13. Fireproof glass; 14. Smoke sensor; 2. Water tank; 21. First pump body; 22. Sprinkler head; 3. Winding roller; 31. Winding shaft; 311. Pulling rope; 312. Weight; 32. Support plate; 33. Film; 34. Water baffle; 4. Connecting frame; 41. Magnet; 5. Limit frame; 51. Magnetic sheet; 6. Water receiving box; 61. Inclined block; 62. Support plate; 63. Floating block; 64. Pressure sensor; 7. Second pump body. Detailed implementation manners
[0021] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.
[0022] As Figures 1 to 2 shown, a thresholdless fireproof cold storage door according to an embodiment of the present invention includes a pair of door bodies 1 and a door frame 11. The pair of door bodies 1 are installed on the door frame 11. An observation port 12 is opened on the surface of the door body 1. A pair of fireproof glasses 13 are fixedly connected inside the observation port 12. A smoke sensor 14 is installed on the surface of the door body 1 and below the fireproof glass 13. A water tank 2 is fixedly connected outside the door body 1 and above the fireproof glass 13. A sprinkler head 22 fixedly connected to the surface of the door body 1 is arranged between the bottom end of the water tank 2 and the top end of the fireproof glass 13. The length of the sprinkler head 22 is the same as the width of the fireproof glass 13; A first pump body 21 fixedly connected to the surface of the door body 1 is arranged below the water tank 2. The input end of the first pump body 21 is communicated with the water tank 2, and the output end of the first pump body 21 is communicated with the spray head 22; Rescue personnel need to observe the situation inside the cold storage through the special glass on the cold storage door. When a fire spreads to the cold storage, the special glass on the cold storage door will be baked by high temperature and adhered to by smoke, resulting in black impurities on the surface of the special glass. When rescue personnel are carrying out rescue operations, in order to prevent the interior of the cold storage from being invaded by the fire, the rescue personnel will not immediately open the cold storage door. In order to initially observe the situation inside the cold storage, such as the appearance of smoke or flames, etc., the rescue personnel need to clean the black impurities on the special glass and then observe the situation inside the cold storage through the special glass. The whole process is relatively complicated, which is not conducive to the rescue personnel's quick judgment of the fire situation and affects the progress of the rescue; To solve the above problems, the embodiment of the present invention sets up structures such as a water tank 2 and a spray head 22 to realize the automatic flushing of the fireproof glass 13 in the observation port 12. The specific use process is as follows: When a fire breaks out on the ship, there will inevitably be smoke inside the ship. The smoke sensor 14 installed on the door body 1 will detect the smoke. The smoke sensor 14 is connected to the controller of the first pump body 21 through an electrical signal. When the smoke sensor 14 detects smoke, the smoke sensor 14 will send a start signal to the controller of the first pump body 21. Then the first pump body 21 is controlled to start by the controller. The first pump body 21 conveys the pre-stored liquid water inside the water tank 2 into the spray head 22. Then the spray head 22 sprays out the liquid water. It should be noted that the surface of the fireproof glass 13 facing the outside of the cold storage in the observation port 12 is aligned with the outer surface of the door body 1. The liquid water sprayed out by the spray head 22 flushes onto the surface of the fireproof glass 13. The liquid water flushes the surface of the fireproof glass 13, preventing the smoke from adhering to the surface of the fireproof glass 13 to form black impurities that block the line of sight, that is, preventing a smoked layer from being formed on the surface of the fireproof glass 13, ensuring the transparent effect of the fireproof glass 13. When the rescue personnel need to observe the situation inside the cold storage, they can observe through the fireproof glass 13 in the observation port 12. The surface of the fireproof glass 13 is continuously flushed by the liquid water, and it is difficult to form black impurities that block the line of sight, that is, a carbon particle smoked layer. Moreover, the liquid water cools the fireproof glass 13, and the fireproof glass 13 can be cooled and protected; At the same time, the carbon particles that have already adhered to the fireproof glass 13 can also be flushed away; The whole process is automated, which is conducive to the rescue personnel's quick judgment of the ship fire situation and avoids affecting the rescue progress.
[0023] Above the nozzle 22, there is a winding roller 3. A film 33 is wound on the surface of the winding roller 3. A water baffle 34 is fixedly connected to the bottom end of the film 33. The water baffle 34 includes a vertical part and a horizontal part. The top end of the vertical part is fixedly connected to the bottom end of the film 33. One end of the horizontal part is fixedly connected to the bottom end of the vertical part, and the other end is attached to the surface of the fireproof glass 13. A plurality of through holes are formed on the surface of the horizontal part; both ends of the winding roller 3 are fixedly connected with winding shafts 31. One end of the winding shaft 31 away from the winding roller 3 is rotatably connected to a support plate 32, and the end of the support plate 32 is fixedly connected to the surface of the door body 1; A pull rope 311 is wound on the surface of the winding shaft 31. A weight 312 is fixedly connected to the bottom end of the pull rope 311; When the nozzle 22 sprays liquid water downward, part of the liquid water will act on the horizontal part of the water baffle 34. The horizontal part of the water baffle 34 receives a downward impact force. The water baffle 34 drives the film 33 to move downward through the impact force received by the horizontal part. The film 33 is initially wound on the surface of the winding roller 3. Then, as the water baffle 34 moves downward, the water baffle 34 drives the winding roller 3 to rotate through the film 33, and releases the wound film 33. During this process, the winding roller 3 drives the winding shaft 31 to rotate synchronously. When the winding shaft 31 rotates, the pull rope 311 is gradually wound onto the surface. During this process, the pull rope 311 drives the weight 312 at the bottom end to move upward; When the water baffle 34 moves to the bottommost position, the horizontal part of the water baffle 34 is at the same height as the bottom end of the fireproof glass 13. Then, the first pump body 21 is closed, and the nozzle 22 no longer sprays liquid water. The weight 312 moves downward to reset under its own gravity. The bottom end of the pull rope 311 at the top of the weight 312 drives it to move downward. The pull rope 311 drives the winding shaft 31 to rotate in the reverse direction, and gradually releases the pull rope 311 wound on the surface. The winding roller 3 is driven to rotate synchronously, and gradually winds the released film 33, so that the film 33 drives the water baffle 34 to move upward to reset. When the water baffle 34 moves upward to the initial position, the weight 312 moves to the lowest position, and the pull rope 311 wound by the winding shaft 31 is completely released. At this time, the first pump body 21 is started again, and the liquid water sprayed by the nozzle 22 impacts the horizontal part of the water baffle 34 again, and the water baffle 34 will move downward again. Then, the above process is repeated, and the output power of the first pump body 21 is controlled by a pre-set program; Based on the above description, it can be obtained that the water baffle 34 drives the bottom end of the film 33 to move up and down along the surface of the fireproof glass 13. During this process, the end of the horizontal part of the water baffle 34 will scrape the carbon particles attached to the surface of the fireproof glass 13. With the flushing of the liquid water, the surface of the fireproof glass 13 is fully cleaned, improving the cleaning effect of the fireproof glass 13; When rescuers observe the situation inside the cold storage through the fireproof glass 13 in the observation port 12, they only need to push aside the film 33. The film 33 and the water baffle 34 will not interfere with the rescuers' observation of the inside of the cold storage through the fireproof glass 13.
[0024] It should be noted that the film 33 used in the embodiments of the present invention is a high-temperature resistant and fireproof film 33, which can be used in a fire environment.
[0025] Both ends of the horizontal part of the water baffle 34 are fixedly connected with blocking plates. One end of the blocking plate is connected to the vertical part of the water baffle 34, and the other end is in contact with the fireproof glass 13. When the liquid water sprayed by the nozzle 22 acts on the horizontal part of the water baffle 34, part of the liquid water will be discharged downward through the through holes formed on the surface of the horizontal part of the water baffle 34, while the liquid water that fails to pass through the through holes stays on the surface of the horizontal part of the water baffle 34 and is intercepted by the blocking plates at both ends of the horizontal part of the water baffle 34, driving the liquid water to flow downward through the through holes and wash the surface of the lower fireproof glass 13.
[0026] A pair of connecting frames 4 are fixedly connected to the side of the water baffle 34 facing away from the door body 1. A magnetic block 41 is fixedly connected to the end of the connecting frame 4 away from the water baffle 34. A pair of limiting frames 5 are symmetrically and fixedly connected to the outside of the door body 1 and on both sides of the fireproof glass 13. The weight 312 is slidably connected to the limiting frame 5. A magnetic sheet 51 is fixedly connected to the surface of the limiting frame 5. There is a continuous magnetic attraction between the magnetic block 41 and the magnetic sheet 51. When the water baffle 34 moves up and down, the magnetic block 41 at the end of the connecting frame 4 is driven to move synchronously by the water baffle 34. Since there is a continuous magnetic attraction between the magnetic block 41 and the magnetic sheet 51 on the limiting frame 5, and the magnetic sheet 51 is located between the door body 1 and the magnetic block 41, the direction of the magnetic force received by the magnetic block 41 points towards the door body 1. Therefore, the magnetic block 41 will drive the water baffle 34 connected by the connecting frame 4 to press towards the door body 1. As a result, the end of the horizontal part of the water baffle 34 will exert pressure on the fireproof glass 13, ensuring that the end of the horizontal part continuously adheres to the surface of the fireproof glass 13 when the water baffle 34 moves up and down, and preventing the liquid water from driving the water baffle 34 away from the fireproof glass 13 when it sprays between the film 33 and the vertical part of the water baffle 34.
[0027] A water receiving box 6 is fixedly connected to the outside of the door body 1 and below the fireproof glass 13. The length of the water receiving box 6 is greater than the width of the fireproof glass 13. The opening of the water receiving box 6 adheres to the surface of the door body 1. A pair of second pumps 7 fixedly connected to the surface of the door body 1 are symmetrically arranged on both sides of the fireproof glass 13. The input end of the second pump 7 is communicated with the water receiving box 6, and the output end of the second pump 7 is communicated with a water tank 2. The water receiving box 6 will receive the liquid water sprayed by the nozzle 22. At the same time, the second pump 7 is started, and the second pump 7 pumps the liquid water collected inside the water receiving box 6 back into the water tank 2 for recycling, enabling the continuous flushing and cleaning of the fireproof glass 13, which is beneficial to maintaining the transparency of the fireproof glass 13 during a long-term fire on the ship.
[0028] The top end of the water receiving box 6 is fixedly connected with an inclined block 61. One end of the inclined block 61 away from the door body 1 is the top end of the inclined surface of the inclined block 61. There is a gap for receiving water between the bottom end of the inclined surface of the inclined block 61 and the water inlet of the water receiving box 6. The liquid water falling on the inclined block 61 flows downward through the inclined surface and finally enters the gap between the bottom end of the inclined surface of the inclined block 61 and the water inlet of the water receiving box 6, and then flows back into the water receiving box 6, reducing the waste of liquid water and ensuring the effect of liquid water recovery. It should be noted that when the liquid water is sprayed from the nozzle 22 onto the horizontal part of the water baffle 34, there will still be some liquid water splashing and it is difficult to collect. However, the splashed liquid water is less, and the intercepting plate will intercept the splashed liquid water. Therefore, the part where the liquid water splashing is difficult to recover is less, and the impact on the overall process of liquid water recycling and reuse is smaller.
[0029] A support plate 62 is fixedly connected inside the water receiving box 6. The top end of the support plate 62 is fixedly connected with a pressure sensor 64. The pressure receiving end of the pressure sensor 64 is fixedly connected with a floating block 63. The bottom end of the floating block 63 is located above the inner bottom wall of the water receiving box 6. The pressure sensor 64 is connected to the controller of the second pump body 7 through an electrical signal. During the process of increasing the liquid water receiving amount in the water receiving box 6, when the liquid water level is higher than the height of the bottom end of the floating block 63, the floating block 63 is affected by the buoyancy force. At this time, the floating block 63 squeezes the pressure receiving end of the pressure sensor 64 upward under the action of the buoyancy force, so that the pressure sensor 64 sends a control signal to the second pump body 7, and then controls the second pump body 7 to start. At this time, the liquid water level inside the water receiving box 6 is higher than the extraction position of the liquid water in the water receiving box 6 at the input end of the second pump body 7. Therefore, the second pump body 7 will pump in the liquid water. When the liquid water level inside the water receiving box 6 is lower than the height of the bottom end of the floating block 63, the floating block 63 is not affected by the buoyancy force, and the pressure sensor 64 will not send a start signal to the controller of the second pump body 7. Therefore, the second pump body 7 is closed. Based on the above, when the liquid water level inside the water receiving box 6 is higher than the extraction position of the liquid water in the water receiving box 6 at the input end of the second pump body 7, the second pump body 7 starts to extract the liquid water inside the water receiving box 6, ensuring that the second pump body 7 stably extracts the liquid water inside the water receiving box 6 and will not extract air into the water tank 2, causing a large amount of air to appear in the water tank 2. When a large amount of air appears in the water tank 2, it will affect the stability of the first pump body 21 to extract the liquid water in the water tank 2, resulting in an intermittent phenomenon in the liquid water sprayed by the nozzle 22 and affecting the cleaning effect of the nozzle 22 on the fireproof glass 13.
[0030] A waterproof film is arranged on the surface of the pressure sensor 64 to isolate the pressure sensor 64 from the liquid water, ensuring a good environment for the use of the pressure sensor 64 and preventing the liquid water from entering the inside of the pressure sensor 64 and causing damage to the pressure sensor 64.
[0031] An isolation cover is installed on the outer side of the door body 1. The isolation cover isolates the structure outside the fireproof glass 13 from the outside world, improving the aesthetic degree of the cold storage door.
[0032] It should be noted that both the first pump body 21 and the second pump body 7 convey liquid water through pipelines.
[0033] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A thresholdless fireproof cold storage door, characterized in that: It includes a pair of door bodies and a door frame. The pair of door bodies are installed on the door frame. An observation port is opened on the surface of the door body. A pair of fireproof glasses are fixedly connected inside the observation port. A smoke sensor is installed on the surface of the door body and below the fireproof glass. A water tank is fixedly connected on the outer side of the door body and above the fireproof glass. A spray head fixedly connected to the surface of the door body is arranged between the bottom end of the water tank and the top end of the fireproof glass. The length of the spray head is the same as the width of the fireproof glass. A first pump body fixedly connected to the surface of the door body is arranged below the water tank. The input end of the first pump body is communicated with the water tank, and the output end of the first pump body is communicated with the spray head.
2. The non-threshold fireproof cold storage door according to claim 1, characterized in that: A winding roller is arranged above the spray head. A film is wound on the surface of the winding roller. A water baffle is fixedly connected to the bottom end of the film. The water baffle includes a vertical part and a horizontal part. The top end of the vertical part is fixedly connected to the bottom end of the film. One end of the horizontal part is fixedly connected to the bottom end of the vertical part, and the other end is attached to the surface of the fireproof glass. A plurality of through holes are opened on the surface of the horizontal part; both ends of the winding roller are fixedly connected with winding shafts. One end of the winding shaft far away from the winding roller is rotatably connected with a support plate, and the end part of the support plate is fixedly connected to the surface of the door body; a pull rope is wound on the surface of the winding shaft, and a weight is fixedly connected to the bottom end of the pull rope.
3. The non-threshold fireproof cold storage door according to claim 2, characterized in that: Blocking plates are fixedly connected to both ends of the horizontal part of the water baffle. One end of the blocking plate is connected to the vertical part of the water baffle, and the other end is in contact with the fireproof glass.
4. The non-threshold fireproof cold storage door according to claim 3, wherein: A pair of connecting frames are fixedly connected to the side of the water baffle facing away from the door body. A magnetic block is fixedly connected to one end of the connecting frame far away from the water baffle. A pair of limiting frames are symmetrically and fixedly connected to the outer side of the door body and on both sides of the fireproof glass. The weight is slidably connected with the limiting frame. A magnetic sheet is fixedly connected to the surface of the limiting frame, and there is a continuous magnetic attraction between the magnetic block and the magnetic sheet.
5. The non-threshold fireproof cold storage door according to claim 1, characterized in that: A water receiving box is fixedly connected to the outer side of the door body and below the fireproof glass. The length of the water receiving box is greater than the width of the fireproof glass; the opening of the water receiving box is attached to the surface of the door body. A pair of second pump bodies fixedly connected to the surface of the door body are symmetrically arranged on both sides of the fireproof glass. The input end of the second pump body is communicated with the water receiving box, and the output end of the second pump body is communicated with the water tank.
6. The non-threshold fireproof cold storage door according to claim 5, characterized in that: An inclined block is fixedly connected to the top end of the water receiving box. The end of the inclined block far away from the door body is the top end of the inclined surface of the inclined block. There is a gap for receiving water between the bottom end of the inclined surface of the inclined block and the water inlet of the water receiving box.
7. The non-threshold fireproof cold storage door according to claim 6, characterized in that: A support plate is fixedly connected to the inside of the water receiving box. A pressure sensor is fixedly connected to the top end of the support plate. A floating block is fixedly connected to the pressure-receiving end of the pressure sensor. The bottom end of the floating block is above the inner bottom wall of the water receiving box.
8. The non-threshold fireproof cold storage door according to claim 7, characterized in that: A waterproof film is arranged on the surface of the pressure sensor.
9. The non-threshold fireproof cold storage door according to claim 1, characterized in that: An isolation cover is installed on the outer side of the door body. The isolation cover isolates the structure outside the fireproof glass from the outside world.
10. A thresholdless fireproof cold storage door according to claim 8, characterized in that: The isolation cover is prepared by a high-temperature resistant material.