Smoke and fire prevention emergency refuge box

By designing a smoke and fire-proof emergency refuge box, and utilizing an insulated cavity and compressed air bags, the problem of smoke obstructing escape routes in high-rise building fires was solved. This achieved safe shelter and ventilation and oxygen supply in high-temperature environments, thus improving the chances of survival.

CN224166751UActive Publication Date: 2026-04-28SHENZHEN LIANGWEN FIRE EQUIPMENT MAINTENANCE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN LIANGWEN FIRE EQUIPMENT MAINTENANCE CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In high-rise building fires, smoke can easily spread and obscure escape signs, making it difficult for people to reach refuge floors. Furthermore, the high temperatures and toxic gases at the fire scene threaten lives.

Method used

Design a smoke and fire emergency refuge box, including a box body and refuge components. The box body consists of a base plate, a cylinder and a cover plate, and is equipped with a heat insulation chamber and a compressed air bag. It is equipped with a manual exhaust valve and an air conditioning fan to provide heat insulation, ventilation and oxygen supply functions.

Benefits of technology

It effectively blocks heat transfer, provides ventilation and oxygen supply, prolongs the time for refuge, increases the chances of survival, and enhances the opportunity to escape.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224166751U_ABST
    Figure CN224166751U_ABST
Patent Text Reader

Abstract

The utility model discloses a firework prevention urgent danger avoiding box which comprises a box body and a danger avoiding assembly, the box body comprises a bottom plate, a cylinder body and a cover plate, the lower end of the cylinder body is fixedly connected with the bottom plate, the cover plate covers the upper end of the cylinder body, the bottom plate, the cylinder body and the cover plate define a danger avoiding space, and first heat insulation cavities are formed in the bottom plate, the cylinder body and the cover plate; the first heat insulation cavity communicates with the outside; the danger avoiding assembly comprises a compressed air bag and a manual exhaust valve, the compressed air bag is arranged in the danger avoiding space and used for releasing air to the danger avoiding space, the manual exhaust valve is arranged on the cover plate, and the two ends of the manual exhaust valve communicate with the danger avoiding space and the first heat insulation cavity correspondingly so that air in the danger avoiding space can be exhausted into the first heat insulation cavity. According to the firework-preventing urgent danger avoiding box, sheltering can be achieved under the emergency situation, and the survival probability is increased.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a smoke and fire evacuation box. Background Technology

[0002] In related technologies, high-rise buildings typically include refuge floors to address fire safety issues. However, the large distance between adjacent refuge floors makes it easy for smoke to spread and obscure escape signs during a fire, making it difficult for people to reach the refuge floors. Furthermore, fire scenes are often characterized by high temperatures and the presence of large amounts of toxic gases, threatening the lives of people and hindering their chances of survival. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a smoke and fire resistant emergency shelter box, which can provide shelter in emergency situations and increase the chances of survival.

[0004] According to a first aspect of the present invention, an emergency escape box for smoke and fire protection includes a box body and an escape assembly. The box body includes a bottom plate, a cylindrical body, and a cover plate. The lower end of the cylindrical body is fixedly connected to the bottom plate. The cover plate is installed on the upper end of the cylindrical body. The bottom plate, the cylindrical body, and the cover plate form an escape space. A first heat insulation cavity is provided in each of the bottom plate, the cylindrical body, and the cover plate. The first heat insulation cavity is in communication with the outside. The escape assembly includes a compressed air bag and a manual exhaust valve. The compressed air bag is arranged in the escape space and is used to release air into the escape space. The manual exhaust valve is disposed on the cover plate. The two ends of the manual exhaust valve are respectively connected to the escape space and the first heat insulation cavity, so that the gas in the escape space can be discharged into the first heat insulation cavity.

[0005] The smoke and fire evacuation box according to this utility model embodiment has at least the following beneficial effects: The box is placed in a balcony, with the lower end of the cylinder fixedly connected to the base plate. A cover plate is installed on the upper end of the cylinder, and the base plate, cylinder, and cover plate form a refuge space. Personnel can open the cover plate at the fire scene and enter the refuge space, then close the cover plate, providing shelter in an emergency. The base plate, cylinder, and cover plate are all provided with a first heat insulation cavity, which blocks heat transfer into the refuge space, slowing down the rate of temperature rise and extending the refuge time. Furthermore, a compressed air bag is placed inside the refuge space, releasing air to ensure unobstructed breathing for personnel. A manual exhaust valve is located on the cover plate, allowing stale air in the refuge space to be expelled into the first heat insulation cavity, improving reliability. By setting up a enclosure, high temperatures can be blocked, and compressed air bags can continuously release air for users to breathe and expel stale air from the refuge space, providing shelter for personnel, extending refuge time, and increasing the chances of survival.

[0006] According to some embodiments of the present invention, the base plate includes two first heat insulation plates, a first heat insulation pad is disposed between the two first heat insulation plates, and a first heat insulation cavity is formed between the two first heat insulation plates.

[0007] According to some embodiments of the present invention, a second heat insulation cavity is provided in both the cylinder and the cover plate, and the second heat insulation cavity is arranged between the first heat insulation cavity and the refuge space.

[0008] According to some embodiments of the present invention, both the cylinder and the cover plate include a support frame and two second heat insulation plates. The support frame and the two second heat insulation plates are arranged sequentially from the inside to the outside. A second heat insulation pad is provided between the support frame and the second heat insulation plates, and between the two second heat insulation plates. A second heat insulation cavity is formed between the support frame and the second heat insulation plates, and a first heat insulation cavity is formed between the two second heat insulation plates.

[0009] According to some embodiments of the present invention, the safety assembly further includes an air conditioning fan, which is fixedly connected to the cover plate. The air inlet of the air conditioning fan is connected to the second heat insulation cavity, and the air outlet of the air conditioning fan is connected to the safety space. The air conditioning fan is used to reduce the temperature inside the second heat insulation cavity, and the air conditioning fan is connected to a battery.

[0010] According to some embodiments of the present invention, the air conditioning fan is further provided with a light, and the light is electrically connected to the battery.

[0011] According to some embodiments of the present invention, the air conditioner fan is further provided with a USB charging interface, which is electrically connected to the battery.

[0012] According to some embodiments of the present invention, the upper end face of the cylinder has a first inclined surface, and the cover plate has a second inclined surface, the second inclined surface being able to fit against the first inclined surface.

[0013] According to some embodiments of the present invention, the safety component further includes a distress caller, which is provided with a sound-emitting unit and a light-emitting unit.

[0014] According to some embodiments of the present invention, the air pressure inside the compressed air bag is 0.8 MPa.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a cross-sectional view of the smoke and fire evacuation box according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A magnified view of part A;

[0019] Figure 3 for Figure 1 A magnified view of section B;

[0020] Figure 4 for Figure 1 A magnified view of a portion of point C.

[0021] Figure label:

[0022] Box body 100, bottom plate 110, first heat insulation plate 111, first heat insulation pad 112, cylinder 120, support frame 121, second heat insulation plate 122, second heat insulation pad 123, first inclined surface 124, cover plate 130, second inclined surface 131, emergency escape space 140, first heat insulation cavity 150, second heat insulation cavity 160;

[0023] Safety device 200, compressed air bag 210, manual exhaust valve 220, air conditioning fan 230, distress call device 240. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Understandably, referring to Figures 1 to 4 The present invention relates to a smoke and fire emergency refuge box, comprising a box body 100 and a refuge assembly 200. The box body 100 includes a bottom plate 110, a cylindrical body 120, and a cover plate 130. The lower end of the cylindrical body 120 is fixedly connected to the bottom plate 110, and the cover plate 130 is fitted onto the upper end of the cylindrical body 120. The bottom plate 110, the cylindrical body 120, and the cover plate 130 form a refuge space 140. A first heat insulation cavity 150 is provided inside the bottom plate 110, the cylindrical body 120, and the cover plate 130. The cavity 150 is connected to the outside; the safety assembly 200 includes a compressed air bag 210 and a manual exhaust valve 220. The compressed air bag 210 is arranged inside the safety space 140 and is used to release air into the safety space 140. The manual exhaust valve 220 is installed on the cover plate 130. The two ends of the manual exhaust valve 220 are respectively connected to the safety space 140 and the first heat insulation cavity 150, so that the gas in the safety space 140 can be discharged into the first heat insulation cavity 150.

[0029] The enclosure 100 is placed in the balcony. The lower end of the cylinder 120 is fixedly connected to the base plate 110. The cover plate 130 is installed on the upper end of the cylinder 120. The base plate 110, cylinder 120, and cover plate 130 form a refuge space 140. Personnel can open the cover plate 130 at the fire scene and enter the refuge space 140, and then close the cover plate 130, so that personnel can obtain shelter in an emergency. The base plate 110, cylinder 120, and cover plate 130 are all provided with a first heat insulation cavity 150. The first heat insulation cavity 150 can block the transfer of heat into the refuge space 140, slow down the rate of temperature rise in the refuge space 140, and prolong the refuge time. Moreover, airflow can flow in the first heat insulation cavity 150, which can reduce the heat accumulation in the base plate 110, cylinder 120, and cover plate 130, which helps to reduce the instability in the refuge space 140 and improve the protection effect.

[0030] Compressed air bags 210 are placed inside the refuge space 140. These bags release air into the refuge space 140, ensuring unobstructed breathing for personnel. A manual exhaust valve 220 is located on the cover plate 130. Operating the valve allows stale air from the refuge space 140 to be expelled into the first insulation chamber 150, improving reliability. The enclosure 100 blocks high-temperature transmission, and the compressed air bags 210 continuously release air for breathing and expel stale air from the refuge space 140, providing shelter, extending refuge time, and increasing the chances of survival.

[0031] It should be noted that the base plate 110, cylinder 120, and cover plate 130 are all high-temperature resistant and heat-insulating components; the manual exhaust valve 220 is a one-way valve, allowing air to be discharged from the refuge space 140 to the first heat-insulating chamber 150, while preventing external and flue gas from the first heat-insulating chamber 150 from entering the refuge space 140. In conjunction with the compressed air bag 210, the air within the refuge space 140 can be continuously replenished, preventing excessively high carbon dioxide concentrations and helping to extend the survival time of personnel within the refuge space 140.

[0032] The compressed air bag 210 contains compressed air, which reduces oxygen leakage to the outside, prevents the fire from spreading further, and improves reliability.

[0033] In addition, in a normal home environment, the cabinet 100 can also be used as a storage container, which can reduce the impact on home life and improve the user experience.

[0034] Understandably, referring to Figure 1 and Figure 2The base plate 110 includes two first heat insulation plates 111, with a first heat insulation pad 112 disposed between the two first heat insulation plates 111, forming a first heat insulation cavity 150 between the two first heat insulation plates 111. The first heat insulation pad 112 can separate the two first heat insulation plates 111 to form the first heat insulation cavity 150, thereby blocking the transfer of heat and helping to reduce the temperature in the refuge space 140. It is not only simple and stable in structure, but also convenient to manufacture and install, improving the economy of use.

[0035] It should be noted that the first heat insulation pad 112 and the two first heat insulation plates 111 are connected by fasteners so that the two first heat insulation plates 111 can be easily installed and fixed together, thus improving the ease of manufacturing.

[0036] Understandably, referring to Figure 1 and Figure 3 Both the cylinder 120 and the cover plate 130 have a second heat insulation cavity 160, which is located between the first heat insulation cavity 150 and the refuge space 140. By arranging the second heat insulation cavity 160 between the first heat insulation cavity 150 and the refuge space 140, a two-layer heat insulation structure is formed. The heat at the fire scene is first blocked by the first heat insulation cavity 150, and then the second heat insulation cavity 160 blocks the heat a second time, slowing down the rate of temperature rise in the refuge space 140. This effectively reduces the temperature in the refuge space 140, providing a more stable and cool refuge environment for personnel and extending the time that personnel can safely stay in the refuge space 140.

[0037] It should be noted that the second insulation cavity 160 is sealed from the outside, which can prevent high-temperature flue gas from entering the second insulation cavity 160 and improve the insulation effect.

[0038] Specifically, refer to Figure 1 and Figure 3Both the cylinder 120 and the cover plate 130 include a support frame 121 and two second heat insulation plates 122. The support frame 121 and the two second heat insulation plates 122 are arranged sequentially from the inside to the outside. A second heat insulation pad 123 is provided between the support frame 121 and the second heat insulation plate 122, and between the two second heat insulation plates 122. A second heat insulation cavity 160 is formed between the support frame 121 and the second heat insulation plate 122, and a first heat insulation cavity 150 is formed between the two second heat insulation plates 122. The support frame 121 and two second heat insulation plates 122 are arranged sequentially from the inside out. Second heat insulation pads 123 are provided between the support frame 121 and the second heat insulation plates 122, as well as between the two second heat insulation plates 122, so that a first heat insulation cavity 150 is formed between the two second heat insulation plates 122, and a second heat insulation cavity 160 is formed between the support frame 121 and the second heat insulation plates 122. This enhances the heat insulation performance, effectively blocks the transmission of high external temperatures to the refuge space 140, reduces the temperature inside the refuge space 140, creates a safer and more comfortable refuge environment for personnel, and greatly extends the survival time of personnel inside the refuge space 140.

[0039] In addition, by setting up a support frame 121 to connect two second heat insulation plates 122, the structural strength of the cylinder 120 and the cover plate 130 can be enhanced, enabling the smoke and fire emergency refuge box to withstand a certain impact force, cope with objects falling at the fire scene, reduce the possibility of deformation and damage, effectively protect personnel from injury, and improve the survival rate of personnel.

[0040] It should be noted that the second heat insulation pad 123, the support frame 121 and the two second heat insulation plates 122 are connected by fasteners to facilitate the assembly of the cylinder 120 and the cover plate 130 and improve the ease of manufacturing.

[0041] Among them, the support frame 121 is made of stainless steel to enhance the structural strength of the smoke and fire emergency escape box; the first heat insulation plate 111, the first heat insulation pad 112, the second heat insulation plate 122 and the second heat insulation pad 123 are all made of polytetrafluoroethylene to improve high temperature resistance.

[0042] Specifically, refer to Figure 1 The cylinder 120 can be cylindrical or square. When the cylinder 120 is cylindrical, the support frame 121 and the two second heat insulation plates 122 are also cylindrical to form a cylindrical cylinder 120. When the cylinder 120 is square, the support frame 121 and the two second heat insulation plates 122 are both flat. Multiple sets of support frames 121 and two second heat insulation plates 122 are connected in sequence to form a square cylinder 120.

[0043] Specifically, refer to Figure 1 and Figure 4The safety assembly 200 also includes an air conditioning fan 230, which is fixedly connected to the cover plate 130. The air inlet of the air conditioning fan 230 is connected to the second heat insulation cavity 160, and the air outlet of the air conditioning fan 230 is connected to the safety space 140. The air conditioning fan 230 is used to reduce the temperature inside the second heat insulation cavity 160, and the air conditioning fan 230 is connected to a battery. An air conditioning fan 230 is mounted on the cover plate 130 and is powered by a battery. The air inlet of the air conditioning fan 230 is connected to the second heat insulation chamber 160, and the air outlet of the air conditioning fan 230 is connected to the refuge space 140. This allows the air conditioning fan 230 to reduce the temperature inside the second heat insulation chamber 160, thereby mitigating the possibility of temperature rise in the refuge space 140. Furthermore, the air conditioning fan 230 can drive airflow within the second heat insulation chamber 160 and the refuge space 140, accelerating the temperature drop in the refuge space 140, improving the comfort of personnel within the refuge space 140, extending the safe stay time, and increasing the survival rate of personnel in a fire.

[0044] It should be noted that the air conditioning fan 230 can reduce the temperature inside the second insulation cavity 160 through semiconductor refrigeration, compressor refrigeration, or other methods, which are not limited here.

[0045] Specifically, refer to Figure 1 The air conditioning fan 230 is also equipped with a light, which is electrically connected to a battery. By incorporating a battery-powered light into the air conditioning fan 230, the practicality and safety of the smoke and fire emergency refuge box in emergency scenarios such as fires are improved. The light can illuminate when powered by the battery, providing stable light to the refuge space 140, allowing personnel to clearly observe the surrounding environment and facilitating the operation of the components inside the refuge box, thereby improving user convenience.

[0046] Specifically, refer to Figure 1 The air conditioning fan 230 is also equipped with a USB charging port, which is electrically connected to the battery. By providing a USB charging port electrically connected to the battery on the air conditioning fan 230, mobile phones, tablets, and other electronic devices carried by personnel can be charged after entering the refuge space 140, which helps to contact the outside world in an emergency and improves the user's convenience.

[0047] Understandably, referring to Figure 1 and Figure 4The upper end face of the cylinder 120 has a first inclined surface 124, and the cover plate 130 has a second inclined surface 131, which can fit against the first inclined surface 124. The cylinder 120 and the cover plate 130 are connected by the first inclined surface 124 and the second inclined surface 131, which can enhance the sealing between the cylinder 120 and the cover plate 130, effectively prevent smoke and harmful gases from entering the refuge space 140, provide a safe breathing environment for refuge personnel, reduce the risk of personnel being poisoned or suffocated by inhaling harmful gases, and improve the survival rate of personnel during the refuge process.

[0048] Secondly, the interaction force between the first inclined plane 124 and the second inclined plane 131 can better disperse the pressure, making the entire shelter structure more stable and less prone to deformation or damage, enhancing the impact resistance of the smoke and fire emergency shelter, thus providing more reliable protection for the personnel seeking refuge.

[0049] Furthermore, through the cooperation of the first inclined surface 124 and the second inclined surface 131, personnel can place the cover plate 130 onto the cylinder 120 more quickly and accurately and achieve a tight fit, so that the cover plate 130 can automatically align with the cylinder 120, saving hazard avoidance time and improving the efficiency of hazard avoidance operations.

[0050] Understandably, referring to Figure 1 The safety assembly 200 also includes a distress call device 240, which is equipped with a sound-emitting unit and a light-emitting unit. When a fire occurs and people are trapped inside the safety box, the sound-emitting unit emits a distress call that can penetrate the safety box and the noisy environment of the fire scene, attracting the attention of rescuers and increasing the chances of being found. The light-emitting unit emits light when there is dense smoke and obstructed visibility at the fire scene, providing directional guidance for rescuers, shortening the time it takes for rescuers to locate trapped people, and improving rescue efficiency.

[0051] Understandably, referring to Figure 1 The compressed air bag 210 has an air pressure of 0.8 MPa. By setting the air pressure inside the compressed air bag 210 to 0.8 MPa, sufficient and stable airflow can be provided, effectively maintaining a suitable oxygen concentration within the refuge space 140, meeting the breathing needs of personnel during refuge, avoiding suffocation due to oxygen deficiency, greatly improving the survival rate of personnel during refuge, and reducing the impact of temperature on the air pressure inside the compressed air bag 210, reducing the safety risks such as rupture and explosion of the compressed air bag 210, and improving reliability.

[0052] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A smoke and fire evacuation box, characterized in that, include: The enclosure includes a bottom plate, a cylindrical body, and a cover plate. The lower end of the cylindrical body is fixedly connected to the bottom plate. The cover plate is installed on the upper end of the cylindrical body. The bottom plate, the cylindrical body, and the cover plate form a safety space. A first heat insulation cavity is provided inside the bottom plate, the cylindrical body, and the cover plate. The first heat insulation cavity is connected to the outside. The safety assembly includes a compressed air bag and a manual exhaust valve. The compressed air bag is arranged within the safety space and is used to release air into the safety space. The manual exhaust valve is disposed on the cover plate, and its two ends are respectively connected to the safety space and the first heat insulation cavity, so that the gas in the safety space can be discharged into the first heat insulation cavity.

2. The smoke and fire evacuation box according to claim 1, characterized in that, The base plate includes two first heat insulation plates, a first heat insulation pad is disposed between the two first heat insulation plates, and a first heat insulation cavity is formed between the two first heat insulation plates.

3. The smoke and fire evacuation box according to claim 1, characterized in that, Both the cylinder and the cover plate have a second heat insulation cavity, which is arranged between the first heat insulation cavity and the refuge space.

4. The smoke and fire evacuation box according to claim 3, characterized in that, Both the cylinder and the cover plate include a support frame and two second heat insulation plates. The support frame and the two second heat insulation plates are arranged sequentially from the inside to the outside. A second heat insulation pad is provided between the support frame and the second heat insulation plates, and between the two second heat insulation plates. A second heat insulation cavity is formed between the support frame and the second heat insulation plates, and a first heat insulation cavity is formed between the two second heat insulation plates.

5. The smoke and fire evacuation box according to claim 3, characterized in that, The safety assembly also includes an air conditioning fan, which is fixedly connected to the cover plate. The air inlet of the air conditioning fan is connected to the second heat insulation cavity, and the air outlet of the air conditioning fan is connected to the safety space. The air conditioning fan is used to reduce the temperature inside the second heat insulation cavity, and the air conditioning fan is connected to a battery.

6. The smoke and fire evacuation box according to claim 5, characterized in that, The air conditioning fan is also equipped with a light, which is electrically connected to the battery.

7. The smoke and fire evacuation box according to claim 5, characterized in that, The air conditioner fan is also equipped with a USB charging port, which is electrically connected to the battery.

8. The smoke and fire evacuation box according to claim 1, characterized in that, The upper end face of the cylinder has a first inclined surface, and the cover plate has a second inclined surface, which can fit against the first inclined surface.

9. The smoke and fire evacuation box according to claim 1, characterized in that, The safety assembly also includes a distress call device, which is equipped with a sound-emitting unit and a light-emitting unit.

10. The smoke and fire evacuation box according to claim 1, characterized in that, The air pressure inside the compressed air bag is 0.8 MPa.