Automatic fireproof curtain

Abstract

The utility model discloses an automatic fireproof curtain which comprises a foldable fireproof curtain body, a suspension box is arranged on the top of the fireproof curtain body, and a rotating shaft, a ratchet wheel braking device and a ratchet wheel unlocking device are arranged in the suspension box. The two ends of the rotating shaft are rotationally connected with the suspension box, the ratchet wheel is arranged on the rotating shaft and fixedly connected with the rotating shaft, one end of the rotating shaft is connected with the rotating handle, and the rotating handle is arranged on the outer side of the suspension box. The ratchet wheel brake device comprises a brake box, a brake shaft, a brake swing rod and a reset spring, the brake box is fixed in the suspension box, the brake shaft is arranged in the brake box, and the tail end of the brake swing rod is rotatably connected with the brake shaft. Compared with a wall building scheme, the automatic fireproof soft isolation system does not occupy the ground space of charging and stopping, does not need to be attended, can descend immediately when fire exists, and can be hidden when fire does not exist; and the dual landing control function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle charging stations, in particular to an automatic fireproof curtain. Background Art

[0002] At present, there are two main active fire prevention measures for centralized charging points for electric bicycles. The first is to hang dry powder fire extinguishing balls. The fire extinguishing ball is a built-in spherical fire extinguisher with an external temperature sensing trigger device. When the surrounding temperature is detected to be too high, the fire extinguishing agent is automatically sprayed to achieve the purpose of fire extinguishing. The appearance of the fire extinguishing ball is red and spherical, commonly known as the "red lantern". Its advantages are easy and quick installation, and its disadvantages are poor practicality and inability to play a role in fire extinguishing and fire prevention; the second is to install a fire sprinkler system, arrange a sprinkler head above each parking space, and connect it to the fire water system. When a fire occurs, the water system is automatically started through the temperature sensing device, and water mist is sprayed from the sprinkler head. The advantage of the sprinkler solution is that it plays a role in fire prevention and cooling of electric vehicles at the fire point. The disadvantage is that it lacks safety. During the charging process of electric vehicles, the charging adapter and charging pile are charged, and spraying water mist will cause electric shock or short circuit on site. Secondly, the use of water to cool down the battery of electric vehicles, especially lithium batteries, at high temperatures will cause secondary deflagration. Of course, there are improvement measures, such as adding foam fire extinguishing agents, but they lack economy, the construction cost of the whole system is high, and it lacks popularity.

[0003] China's public patent "Intelligent electric bicycle charging device with integrated fire separation and automatic fire extinguishing function", patent application number CN202222726251.0, provides an intelligent electric bicycle charging device with integrated fire separation and automatic fire extinguishing function, which includes a charging socket, a fire separation device and an automatic fire extinguishing device. By directly arranging the fire separation device on both sides of a single electric bicycle charging position, the existing chaotic charging position is divided into multiple parking spaces and fire separation rooms that can only park a single electric bicycle, thereby improving the fire prevention effect.

[0004] The advantage of this solution is that it provides complete physical fire separation, reducing the risk of fire spread. The disadvantage is that the practice of having a partition wall for each parking space sacrifices the space utilization of the charging site, increases construction costs, and is not replicable. Since the probability of electric vehicle fires is relatively small, it should not affect the convenience of daily charging for car owners. Utility Model Content

[0005] The purpose of the utility model is to solve the problem of insufficient protection measures against the spread of fire in charging pile stations, and to provide an automatic fire protection curtain with a reasonable structure that can automatically descend to help curb the tendency of a fire in a parking space where a fire occurs to spread rapidly to adjacent parking spaces.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An automatic fireproof curtain comprises a foldable fireproof curtain, a suspension box is provided on the top of the fireproof curtain, a rotating shaft, a ratchet brake device and a ratchet unlocking device are provided in the suspension box; both ends of the rotating shaft are rotatably connected to the suspension box respectively, a ratchet is provided on the rotating shaft, the ratchet is fixedly connected to the rotating shaft, one end of the rotating shaft is connected to a rotating handle, and the rotating handle is arranged on the outside of the suspension box; the ratchet brake device comprises a brake box, a brake shaft, a brake rocker and a reset spring, the brake box is fixed in the suspension box, the brake shaft is arranged in the brake box, the tail end of the brake rocker is rotatably connected to the brake shaft, and the head end of the brake rocker extends out of the brake box. The moving box is exposed, and a brake tooth cooperating with the ratchet is provided in the middle of the brake rocker arm. One end of the return spring is connected to the tail end of the brake rocker arm, and the other end is connected to the inner side of the brake box; the ratchet unlocking device includes a controller, and an electric push rod device connected to the controller, and the electric push rod device includes a retractable push rod, and the retractable push rod is arranged in cooperation with the head end of the brake rocker arm; a support rod is provided on the top of the fireproof curtain, and a counterweight rod is provided at the bottom of the fireproof curtain. The fireproof curtain is also provided with a winding wire rope, and the support rod is fixed to the bottom of the suspension box, and one end of the wire rope is connected to the bottom of the fireproof curtain, and the other end passes through the fireproof curtain and the bottom of the suspension box and is fixed on the rotating shaft.

[0008] The fireproof curtain of this scheme can be set between multiple charging parking spaces to solve the problem that there is no spacing between charging vehicles in existing open charging pile stations, and the fire cannot be prevented from spreading from the burning vehicle to adjacent vehicles; the fireproof curtain is not a permanent partition. When there is no fire, the fireproof curtain is retracted and pulled up and locked with a ratchet brake device, which does not hinder the entry and exit of vehicles, and can also maintain the advantage of free air circulation in the open charging pile station without accumulating harmful gases; when a fire occurs, the ratchet unlocking device releases the lock of the ratchet brake device, and the fireproof curtain is freely lowered under the action of the counterweight rod, which plays a role in preventing the rapid spread of fire.

[0009] As a preferred solution of the utility model, the connecting end of the rotating shaft and the rotating handle is rotatably connected to the side of the suspension box, the other end of the rotating shaft passes through the brake box and is rotatably connected to the brake box, and the ratchet is arranged in the brake box.

[0010] As a preferred solution of the utility model, the head end of the brake swing rod is connected to a manual unlocking wire, and the other end of the manual unlocking wire passes through the suspension box and extends outward and is provided with a wire handle. The manual unlocking wire of this solution is an important supplement to the emergency cutoff by manually pulling the release device when the curtain cannot be automatically lowered (for example, the fire detector fails, but a fire does occur); the wire handle of the manual unlocking wire can be extended to a safe and easy-to-operate place.

[0011] As a preferred solution of the utility model, the ratchet unlocking device further comprises an independent battery pack, and the battery pack is electrically connected to the controller. The ratchet unlocking device of this solution is powered by a built-in battery pack and does not require an external power supply.

[0012] As a preferred solution of the utility model, the side of the suspension box is provided with multiple aviation plugs, which are respectively connected to the smoke detector, the temperature detector, and the AI ​​visual monitoring detector, and the aviation plug is electrically connected to the controller. The controller developed in this solution can accept multiple input signals, such as commonly used smoke detectors, temperature detectors, AI visual monitoring detectors, etc., which are uniformly connected through the aviation interface on the outside of the suspension box to achieve rapid judgment.

[0013] As a preferred solution of the utility model, the support rod is in a right angle shape, the counterweight rod is a steel bar and is covered in a fireproof curtain, the counterweight rod, support rod and steel wire rope constitute a curtain folding mechanism, the counterweight rod, support rod and fireproof curtain are of the same width, and the steel wire rope is provided with three strands.

[0014] As a preferred solution of the utility model, a pressure strip is provided on the top of the fireproof curtain, the pressure strip is covered in the fireproof curtain, and the pressure strip is arranged in cooperation with the support rod.

[0015] As a preferred solution of the utility model, the fireproof curtain is provided with a three-row eyelet combination, and the fireproof curtain is provided with three groups of steel wire ropes and bottom eyelets corresponding to the three rows of eyelets. One end of the steel wire rope is provided with a clamping aluminum head and is clamped on the bottom eyelet located at the bottom, and the other end is wavy and passes through both sides of the upper eyelet respectively and finally passes through the bottom of the suspension box and is fixedly connected to the rotating shaft. The bottom of the suspension box is provided with a waist-shaped hole that cooperates with the steel wire rope.

[0016] As a preferred solution of the utility model, the three rows of eyelets are combined into a vertical and horizontal grid arrangement, the horizontal spacing of the eyelets is 512 mm, and the vertical spacing of the eyelets is 300 mm. The arrangement and aperture size of the eyelets of the curtain of this solution are calculated to ensure that the curtain can be folded smoothly in the horizontal direction and does not shake when rising and falling.

[0017] Since the fireproof curtain is relatively wide, in order to simplify the width of the curtain control box, the utility model does not store the fireproof curtain by a reel, but adopts a folding mechanism to fold and store the curtain. The curtain folding mechanism includes a counterweight rod with the same width as the curtain, a support rod and three steel wire ropes; the counterweight rod is sewn to the bottom of the curtain and fixed and hidden at both ends, the support rod is a right-angle steel, which clamps the top of the curtain with a clip and fixes it with screws, and the three steel wire ropes are wrapped around the rotating shaft.

[0018] When the fireproof curtain is folded up in this scheme, a rotating handle is used to rotate the rotating shaft, and the ratchet is in a rotatable direction. After folding, the brake teeth in the middle of the brake swing rod clamp the ratchet, so that the rotating shaft cannot rotate. Therefore, although the fireproof curtain is pulled by the counterweight rod, it is blocked and cannot fall. When the ratchet unlocking device receives a fire alarm signal, the retractable push rod of the electric push rod device is started to push the brake swing rod, so that the brake teeth no longer clamp the ratchet, and the fireproof curtain automatically falls under the pull of the counterweight rod. In addition, the manual unlocking wire can be manually pulled to drive the brake swing rod to rotate, so that the brake teeth no longer clamp the ratchet, and the fireproof curtain can be manually lowered when the ratchet unlocking device does not act.

[0019] Compared with the prior art, the beneficial effects of the utility model are: the utility model is an automatic fireproof soft isolation system, which does not occupy ground space, does not require personnel on duty, can be lowered when there is fire, and can be hidden when there is no fire; it has a dual descent control function. First, when the fire detector senses the fire characteristics in the protection area, it automatically starts the descent command. Secondly, when the matching manual emergency landing rope is pulled, the curtain will descend urgently. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a side structural schematic diagram of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the suspension box of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the braking device of the utility model.

[0024] Figure 5 The utility model is a distribution diagram of the eyelet holes of the fireproof curtain.

[0025] Figure 6 The utility model is a structural schematic diagram of the fireproof curtain pressure strip.

[0026] In the figure: 1, fire curtain 2, suspension box 4, rotating shaft 5, ratchet

[0027] 6. Rotating handle 7. Brake box 8. Brake shaft 9. Brake swing arm

[0028] 10. Return spring 11. Braking tooth 12. Controller

[0029] 13. Electric push rod device 14. Support rod 15. Counterweight rod

[0030] 16. Steel wire rope 17. Manual unlocking wire 18. Steel wire handle

[0031] 19. Battery pack 20. Aviation plug 21. Pressure strip

[0032] 22. Eyelet hole 23. Bottom eyelet. DETAILED DESCRIPTION

[0033] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0034] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0036] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0037] An automatic fireproof curtain, including a foldable fireproof curtain, a suspension box 2 is provided on the top of the fireproof curtain 1, a rotating shaft 4, a ratchet brake device, and a ratchet unlocking device are provided in the suspension box 2; both ends of the rotating shaft 4 are rotatably connected to the suspension box 2, a ratchet 5 is provided on the rotating shaft 4, the ratchet 5 is fixedly connected to the rotating shaft 4, one end of the rotating shaft 4 is connected to a rotating handle 6, and the rotating handle 6 is arranged on the outside of the suspension box 2; the ratchet brake device includes a brake box 7, a brake shaft 8, a brake rocker 9, and a reset spring 10, the brake box 7 is fixed in the suspension box 2, the brake shaft 8 is arranged in the brake box 7, the rear end of the brake rocker 9 is rotatably connected to the brake shaft 8, the head end of the brake rocker 9 extends out of the brake box 7 and is exposed, and the brake A brake tooth 11 cooperating with the ratchet 5 is provided in the middle of the rocker arm 9, one end of the return spring 10 is connected to the tail end of the brake rocker arm 9, and the other end is connected to the inner side of the brake box 7; the ratchet unlocking device includes a controller 12, and an electric push rod device 13 connected to the controller 12, the electric push rod device 13 includes a retractable push rod, and the retractable push rod is arranged in cooperation with the head end of the brake rocker arm 9; a support rod 14 is provided at the top of the fireproof curtain 1, a counterweight rod 15 is provided at the bottom of the fireproof curtain 1, and the fireproof curtain 1 is also provided with a winding wire rope 16, the support rod 14 is fixed to the bottom of the suspension box 2, one end of the wire rope 16 is connected to the bottom of the fireproof curtain 1, and the other end passes through the fireproof curtain 1 and the bottom of the suspension box 2 and is fixed on the rotating shaft 4.

[0038] The connecting end of the rotating shaft 4 and the rotating handle 6 is rotatably connected to the side of the suspension box 2 , and the other end of the rotating shaft 4 passes through the brake box 7 and is rotatably connected to the brake box 7 . The ratchet 5 is arranged in the brake box 7 .

[0039] A manual unlocking wire 17 is connected to the head end of the brake swing rod 9 , and the other end of the manual unlocking wire 17 passes through the suspension box 2 and extends outward and is provided with a wire handle 18 .

[0040] The ratchet unlocking device further includes an independent battery pack 19 , and the battery pack 19 is electrically connected to the controller 12 .

[0041] A plurality of aviation plugs 20 are provided on the side of the suspension box 2 , and the aviation plugs 20 are respectively connected to the smoke detector, the temperature detector, and the AI ​​visual monitoring detector, and the aviation plugs 20 are electrically connected to the controller 12 .

[0042] The fireproof curtain 1 is a fireproof polyester cloth or a basalt fiber fireproof cloth, the support rod 14 is in a right angle shape, the counterweight rod 15 is a steel bar and is wrapped in the fireproof curtain 1, the counterweight rod 15, the support rod 14 and the steel wire rope 16 constitute a curtain folding mechanism, the counterweight rod 15, the support rod 14 and the fireproof curtain 1 are of the same width, and the steel wire rope 16 is provided with three strands.

[0043] A pressure strip 21 is provided on the top of the fireproof curtain 1 . The pressure strip 21 is wrapped inside the fireproof curtain 1 . The pressure strip 21 is matched with the support rod 14 .

[0044] The fireproof curtain 1 is provided with a combination of three rows of eyelet holes 22, and three groups of steel wire ropes 16 and bottom eyelets 23 corresponding to the three rows of eyelet holes 22 are provided on the fireproof curtain 1. One end of the steel wire rope 16 is provided with a clamping aluminum head and is clamped on the bottom eyelet 23 located at the bottom, and the other end is wavy and passes through both sides of the upper eyelet hole 22 and finally passes through the bottom of the suspension box 2 and is fixedly connected to the rotating shaft 4. The bottom of the suspension box is provided with a waist-shaped hole that matches the steel wire rope.

[0045] The three rows of eyelets are combined into a vertical and horizontal grid arrangement, the horizontal spacing of the eyelets 22 is 512 mm, and the vertical spacing of the eyelets 22 is 300 mm.

[0046] The working process of the utility model: when the fireproof curtain 1 is folded, the rotating handle 6 is used to rotate the rotating shaft 4, and the ratchet 5 is in a rotatable direction. After folding, the braking teeth 11 in the middle of the braking rocker 9 clamp the ratchet 5, so that the ratchet 5 and the rotating shaft 4 cannot rotate. Therefore, although the fireproof curtain 1 is pulled by the counterweight rod 15, it cannot fall because the ratchet 5 and the rotating shaft 4 are prevented from rotating; when the ratchet unlocking device receives the fire alarm signal, the retractable push rod of the electric push rod device 13 is started to push the braking rocker 9, so that the braking teeth 11 no longer clamp the ratchet 5, and the fireproof curtain 1 automatically falls under the pull of the counterweight rod 15; in addition, the manual unlocking wire 17 can be manually pulled to drive the braking rocker 9 to rotate, so that the braking teeth 11 no longer clamp the ratchet 5, and the fireproof curtain 1 can be manually lowered when the ratchet unlocking device does not act.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic fireproof curtain, comprising a foldable fireproof curtain, characterized in that: A suspension box is provided on the top of the fireproof curtain, and a rotating shaft, a ratchet brake device, and a ratchet unlocking device are provided in the suspension box; The two ends of the rotating shaft are rotatably connected to the suspension box respectively, a ratchet is provided on the rotating shaft, the ratchet is fixedly connected to the rotating shaft, one end of the rotating shaft is connected to a rotating handle, and the rotating handle is arranged outside the suspension box; The ratchet brake device comprises a brake box, a brake shaft, a brake swing rod, and a return spring. The brake box is fixed in the suspension box, the brake shaft is arranged in the brake box, the rear end of the brake swing rod is rotatably connected to the brake shaft, the head end of the brake swing rod extends out of the brake box and is exposed, the middle part of the brake swing rod is provided with a brake tooth matched with the ratchet, one end of the return spring is connected to the rear end of the brake swing rod, and the other end is connected to the inner side of the brake box; The ratchet unlocking device includes a controller and an electric push rod device connected to the controller, wherein the electric push rod device includes a retractable push rod, and the retractable push rod is arranged in cooperation with the head end of the brake swing rod; A support rod is provided on the top of the fireproof curtain, a counterweight rod is provided on the bottom of the fireproof curtain, and the fireproof curtain is also provided with a winding wire rope. The support rod is fixed to the bottom of the suspension box, one end of the wire rope is connected to the bottom of the fireproof curtain, and the other end passes through the fireproof curtain and the bottom of the suspension box and is fixed on the rotating shaft.

2. The automatic fireproof curtain according to claim 1, characterized in that: The connecting end of the rotating shaft and the rotating handle is rotatably connected to the side of the suspension box, the other end of the rotating shaft passes through the brake box and is rotatably connected to the brake box, and the ratchet is arranged in the brake box.

3. The automatic fireproof curtain according to claim 1, characterized in that: The head end of the brake swing rod is connected with a manual unlocking steel wire, and the other end of the manual unlocking steel wire passes through the suspension box and extends outward and is provided with a steel wire handle.

4. The automatic fireproof curtain according to claim 1, characterized in that: The ratchet unlocking device also includes an independent battery pack, and the battery pack is electrically connected to the controller.

5. The automatic fireproof curtain according to claim 1, characterized in that: A plurality of aviation plugs are provided on the side of the suspension box, and the aviation plugs are respectively connected to the smoke detector, the temperature detector, and the AI ​​visual monitoring detector, and the aviation plugs are electrically connected to the controller.

6. The automatic fireproof curtain according to claim 1, characterized in that: The support rod is in a right angle shape, the counterweight rod is a steel bar and is wrapped in a fireproof curtain, the counterweight rod, the support rod and the steel wire rope constitute a curtain folding mechanism, the counterweight rod, the support rod and the fireproof curtain have the same width, and the steel wire rope has three strands.

7. The automatic fireproof curtain according to claim 6, characterized in that: A pressure strip is arranged on the top of the fireproof curtain, the pressure strip is covered in the fireproof curtain, and the pressure strip is arranged in cooperation with the support rod.

8. An automatic fireproof curtain according to claim 1 or 6, characterized in that: The fireproof curtain is provided with a combination of three rows of eyelet holes, and is provided with three groups of steel wire ropes and bottom eyelets corresponding to the three rows of eyelet holes. One end of the steel wire rope is provided with a clamping aluminum head and is clamped on the bottom eyelet at the bottom, and the other end is wavy and passes through the two sides of the upper eyelet respectively, and finally passes through the bottom of the suspension box and is fixedly connected to the rotating shaft. The bottom of the suspension box is provided with a waist-shaped hole that matches the steel wire rope.

9. The automatic fireproof curtain according to claim 8, characterized in that: The three rows of eyelet holes are combined into a vertical and horizontal grid arrangement, the horizontal spacing of the eyelet holes is 512 mm, and the vertical spacing of the eyelet holes is 300 mm.

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