Limited space accident emergency rescue device
By designing a rescue device with a multi-layered, wear-resistant, and airtight protective jacket and oxygen delivery tubes, the problems of inconvenience in carrying traditional devices and unstable oxygen supply have been solved, achieving a compact and convenient rescue effect and ensuring safe and efficient rescue in confined spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG SIHAN MASCH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional emergency rescue devices are inconvenient to carry in confined spaces, have insufficient protective effects, unstable oxygen supply, and are easily obstructed by secondary collapses or compression, making it difficult to meet the complex and ever-changing needs of confined space accident rescue.
A rescue device comprising a protective jacket and an oxygen delivery tube has been designed. The protective jacket is made of multiple layers of wear-resistant and airtight materials, with an internal protective cavity and an inflation system. The oxygen delivery tube ensures a stable oxygen supply, and the inflation connection is convenient. The straps and Velcro make it easy to carry.
This resulted in a compact and portable rescue device that provides reliable protection and a stable oxygen supply, improving rescue efficiency and safety.
Smart Images

Figure CN224207245U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rescue technology, specifically to an emergency rescue device for confined space accidents. Background Technology
[0002] In confined space environments such as basements, mines, and pipelines, accidents such as oxygen deficiency, poisoning, and explosions frequently occur due to the limited space and poor ventilation, posing a serious threat to the lives of workers. Traditional emergency rescue devices often suffer from problems such as inconvenience in carrying, insufficient protective effect, and unstable oxygen supply. Furthermore, secondary collapses or compression can hinder rescue efforts, making it difficult to meet the complex and ever-changing emergency rescue needs of confined space accidents. Therefore, developing a confined space accident emergency rescue device with a simple structure, good protective effect, and stable oxygen supply is of great significance for improving rescue efficiency and ensuring the safety of workers. Utility Model Content
[0003] The purpose of this invention is to provide an emergency rescue device for confined space accidents to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a confined space accident emergency rescue device, comprising a protective outer jacket, wherein a protective inner cavity is formed in the inner wall of the protective outer jacket, the top and bottom of the protective inner cavity are through-holes, and a plurality of protective handles are uniformly fixedly connected to the inner walls on both sides of the protective inner cavity, the plurality of protective handles being arranged in pairs, an oxygen delivery pipe is fixedly connected to the inner wall of one end of the protective inner cavity, an inflation connection pipe is fixedly connected to the top of one end of the protective outer jacket, an inflation connection nozzle is fixedly connected to the end of the inflation connection pipe away from the protective outer jacket, and an oxygen connection nozzle is fixedly connected to the end of the oxygen delivery pipe near the inflation connection pipe.
[0005] As a further aspect of the present invention: the protective jacket includes an outer wear-resistant layer, an inner wear-resistant layer is fixedly connected to the inner wall of the outer wear-resistant layer, an outer airtight layer is fixedly connected to the inner wall of the inner wear-resistant layer, and an inflatable inner cavity is formed on the inner wall of the outer airtight layer.
[0006] As a further embodiment of the present invention: one end of the inflatable connecting tube, which passes through the protective jacket, is disposed on the inner wall of the inflatable inner cavity.
[0007] As a further embodiment of the present invention: an inner airtight layer is fixedly connected to the inner wall of the inflatable cavity on the side away from the outer airtight layer, and an inner protective layer is fixedly connected to the inner wall of the inner airtight layer.
[0008] As a further embodiment of the present invention: the oxygen delivery pipe includes an outer protective layer, the inner wall of the outer protective layer is fixedly connected to an oxygen airtight layer, and the inner wall of the oxygen airtight layer is provided with an oxygen delivery cavity.
[0009] As a further embodiment of the present invention: the bottom of the oxygen delivery chamber is through-hole, and the oxygen connection nozzle is disposed on the inner wall of the oxygen delivery chamber through one end of the oxygen delivery pipe.
[0010] As a further embodiment of the present invention: a strap is fixedly connected to the top side wall of the protective jacket near the inflatable connecting tube, and a Velcro strap is fixedly connected to the strap.
[0011] Compared with existing technologies, the advantages of this invention are as follows: By rationally designing the layout of the protective jacket and internal structure, the entire device is compact and small in size, making it easy for rescue personnel to carry and transport. The protective jacket is made of multi-layered wear-resistant and airtight materials, effectively resisting external impacts and the intrusion of harmful gases, providing reliable protection for rescue personnel. The oxygen delivery pipe is specially designed to ensure that oxygen does not leak during delivery, providing a stable and continuous oxygen supply for rescue personnel. Through the design of the inflation connection pipe and oxygen connection nozzle, rescue personnel can quickly and easily inflate the device and connect it to an oxygen source, improving rescue efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of a confined space accident emergency rescue device according to the present invention;
[0013] Figure 2 This is a partially enlarged cross-sectional view of the protective jacket in a confined space accident emergency rescue device according to the present invention;
[0014] Figure 3 This invention relates to a confined space accident emergency rescue device. Figure 2 Enlarged structural diagram at point A;
[0015] Figure 4 This is a schematic diagram of the folding structure of a confined space accident emergency rescue device according to the present invention.
[0016] In the diagram: 1. Protective outer jacket; 11. Outer abrasion-resistant layer; 12. Inner abrasion-resistant layer; 13. Outer airtight layer; 14. Inflatable inner cavity; 15. Inner airtight layer; 16. Inner protective layer; 2. Oxygen delivery pipe; 21. Oxygen connecting nozzle; 22. Outer protective layer; 23. Oxygen airtight layer; 24. Oxygen delivery cavity; 3. Inflatable connecting pipe; 31. Inflatable connecting nozzle; 4. Cable tie; 41. Velcro; 5. Protective inner cavity; 51. Protective handle. Detailed Implementation
[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0019] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation 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.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "installation" should be interpreted broadly. For example, they can refer to fixed connection or installation, detachable connection or installation, or integral connection or installation. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Example 1: Mine Rescue Application
[0022] Scene description:
[0023] In mine operations, due to the confined space and poor ventilation inside mines, workers are highly susceptible to being trapped and facing dangers such as oxygen deprivation and poisoning in the event of an accident (such as a gas explosion or collapse). In such situations, confined space accident emergency rescue devices can play a crucial role.
[0024] Implementation steps:
[0025] Preparation Phase: Rescuers arrive at the mine entrance carrying confined space accident emergency rescue equipment. They inflate the protective jacket 1 using the inflation connector 31, causing it to expand and adhere tightly to the mine wall. Simultaneously, the oxygen connector 21 of the oxygen delivery pipe 2 is connected to an external oxygen source to ensure a stable oxygen supply.
[0026] Entering the mine: Rescuers don protective jackets 1 and enter the protective inner cavity 5, maintaining a stable posture and position using the protective handles 51. During entry, oxygen supply is continuously monitored to ensure unimpeded breathing for the rescuers.
[0027] Rescue Operation: Rescuers searched for trapped personnel inside the mine, utilizing the protective outer jacket 1 to shield them from external impacts and the intrusion of harmful gases. After locating the trapped personnel, they assisted them into the protective inner cavity 5 and evacuated the mine together.
[0028] Example 2: Basement Rescue Application
[0029] Scene description:
[0030] In basement operations, poor ventilation creates significant risks, posing a danger to workers in the event of fires, toxic gas leaks, or other accidents. Confined space accident emergency rescue devices can provide crucial support for such rescues.
[0031] Implementation steps:
[0032] Preparation phase: Rescuers arrive at the basement entrance with rescue equipment and inflate the protective jacket 1 and connect it to an oxygen source according to the method in Example 1.
[0033] Entering the basement: Rescuers, wearing protective jackets, enter the basement to conduct the rescue. During entry, carefully observe the interior of the basement and ensure your own safety.
[0034] Rescue Operation: Rescuers searched for the trapped person inside the basement and, using the protective effect of the protective jacket 1 and the stable oxygen supply from the oxygen delivery pipe 2, safely rescued the trapped person.
[0035] Example 3: Application of pipeline maintenance and rescue
[0036] Scene description:
[0037] During pipeline maintenance, the confined space inside the pipeline and the potential presence of toxic or harmful gases pose a risk of personnel becoming trapped in the event of an accident. Confined space accident emergency rescue devices can play a crucial role in such scenarios.
[0038] Implementation steps:
[0039] Preparation phase: Rescue personnel arrive at the pipeline maintenance site with rescue equipment, inflate protective jacket 1, and connect it to an oxygen source. Simultaneously, they inspect the internal condition of the pipeline to ensure the safety of the rescue operation.
[0040] Entering the Pipeline: Rescuers, wearing protective jackets (1), enter the pipeline through the entrance to conduct rescue operations. During entry, maintain communication with the outside and report the situation inside promptly.
[0041] Rescue Operation: Rescuers located the trapped maintenance personnel inside the pipeline. Utilizing the protective effect of the protective jacket 1 and the stable oxygen supply from the oxygen delivery pipe 2, they safely brought the trapped personnel out of the pipeline. During the rescue, they carefully observed changes in the pipeline's internal environment to ensure the smooth progress of the rescue operation.
[0042] In summary:
[0043] Please see Figures 1-4 In this embodiment of the invention, a confined space accident emergency rescue device includes a protective jacket 1. The inner wall of the protective jacket 1 has a protective inner cavity 5, with through-hole openings at the top and bottom for easy access by rescue personnel. Multiple protective handles 51 are evenly and fixedly connected to the inner walls on both sides of the protective inner cavity 5, arranged in pairs to provide stable support and gripping points for rescue personnel. An oxygen delivery pipe 2 is fixedly connected to the inner wall at one end of the protective inner cavity 5 to provide oxygen supply to rescue personnel. An inflation connection pipe 3 is fixedly and through-hole connected to the top of one end of the protective jacket 1. An inflation connection nozzle 31 is fixedly connected to the end of the inflation connection pipe 3 away from the protective jacket 1 for connecting to an inflation device to inflate the protective jacket 1. An oxygen connection nozzle 21 is fixedly connected to the end of the oxygen delivery pipe 2 near the inflation connection pipe 3 for connecting to an oxygen source.
[0044] The protective jacket 1 includes an outer wear-resistant layer 11, an inner wear-resistant layer 12 fixedly connected to the inner wall of the outer wear-resistant layer 11, and an outer airtight layer 13 fixedly connected to the inner wall of the inner wear-resistant layer 12. An inflation cavity 14 is formed in the inner wall of the outer airtight layer 13. An inflation connecting pipe 3 passes through one end of the protective jacket 1 and is positioned within the inner wall of the inflation cavity 14 to ensure no gas leakage during inflation. An inner airtight layer 15 is fixedly connected to the inner wall of the inflation cavity 14 on the side away from the outer airtight layer 13, and an inner protective layer 16 is fixedly connected to the inner wall of the inner airtight layer 15, further enhancing the airtightness and protective effect of the protective jacket 1.
[0045] The oxygen delivery pipe 2 includes an outer protective layer 22, and an oxygen airtight layer 23 is fixedly connected to the inner wall of the outer protective layer 22. An oxygen delivery cavity 24 is formed in the inner wall of the oxygen airtight layer 23. The bottom of the oxygen delivery cavity 24 is through-hole, and an oxygen connecting nozzle 21 is set in the inner wall of the oxygen delivery cavity 24 through one end of the oxygen delivery pipe 2 to ensure that oxygen can be stably and smoothly delivered into the protective inner cavity 5.
[0046] The protective jacket 1 has a strap 4 fixedly connected to the top side wall near the inflation connecting tube 3. Velcro 41 is fixedly connected to the strap 4 to facilitate fixing the device to the rescuer or rescue equipment.
[0047] The working principle of this invention is as follows: Before the rescue operation begins, rescuers first inflate the protective jacket 1 using the inflation connector 31, causing it to expand and fit snugly against the wall of the confined space. Next, the rescuers connect the oxygen connector 21 of the oxygen delivery pipe 2 to an oxygen source to ensure a stable oxygen supply. Then, the rescuers enter the protective inner cavity 5 and maintain a stable posture and position using the protective handle 51.
[0048] During the rescue, rescuers breathe oxygen supplied by oxygen delivery tube 2, while relying on the protective effect of protective jacket 1 to resist external impacts and the intrusion of harmful gases.
[0049] During the rescue, options can be made based on the actual situation. For example, the protective jacket 1 can be placed in a closed space, and the trapped person can enter the protective inner cavity 5. External rescuers can use an air pump and an inflation connection pipe 3 to inflate the inflation inner cavity 14. At this time, the protective jacket 1 will inflate. Simultaneously, oxygen can be delivered to the oxygen delivery pipe 2 through an oxygen delivery device and an oxygen connection nozzle 21 to protect the trapped person and ensure oxygen supply, thus facilitating subsequent rescue efforts.
[0050] The protective jacket's multiple protective layers and airtight design ensure the safety of rescue personnel during rescue operations. A stable oxygen supply from the oxygen delivery tube provides essential life support for rescue personnel. The convenient inflation system allows rescue personnel to inflate the device and put it into use quickly. The design of the straps 4 and Velcro 41 makes the device easier to carry and store.
[0051] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0052] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A confined space accident emergency rescue device, comprising a protective jacket (1), characterized in that: The inner wall of the protective jacket (1) is provided with a protective inner cavity (5). The top and bottom of the protective inner cavity (5) are both through-holes. Multiple protective handles (51) are evenly fixedly connected to the inner walls on both sides of the protective inner cavity (5). The multiple protective handles (51) are arranged in pairs. An oxygen delivery pipe (2) is fixedly connected to the inner wall of one end of the protective inner cavity (5). An inflation connection pipe (3) is fixedly connected to the top of one end of the protective jacket (1). An inflation connection nozzle (31) is fixedly connected to the end of the inflation connection pipe (3) away from the protective jacket (1). An oxygen connection nozzle (21) is fixedly connected to the end of the oxygen delivery pipe (2) near the inflation connection pipe (3).
2. The confined space accident emergency rescue device according to claim 1, characterized in that: The protective jacket (1) includes an outer wear-resistant layer (11), an inner wear-resistant layer (12) is fixedly connected to the inner wall of the outer wear-resistant layer (11), an outer airtight layer (13) is fixedly connected to the inner wall of the inner wear-resistant layer (12), and an air-filled inner cavity (14) is opened on the inner wall of the outer airtight layer (13).
3. The confined space accident emergency rescue device according to claim 1, characterized in that: The inflatable connecting pipe (3) passes through one end of the protective jacket (1) and is located on the inner wall of the inflatable inner cavity (14).
4. The confined space accident emergency rescue device according to claim 2, characterized in that: An inner airtight layer (15) is fixedly connected to the inner wall of the inflatable inner cavity (14) on the side away from the outer airtight layer (13), and an inner protective layer (16) is fixedly connected to the inner wall of the inner airtight layer (15).
5. The confined space accident emergency rescue device according to claim 1, characterized in that: The oxygen delivery pipe (2) includes an outer protective layer (22), and an oxygen airtight layer (23) is fixedly connected to the inner wall of the outer protective layer (22). An oxygen delivery cavity (24) is opened on the inner wall of the oxygen airtight layer (23).
6. The confined space accident emergency rescue device according to claim 5, characterized in that: The bottom of the oxygen delivery chamber (24) is through-hole, and the oxygen connection nozzle (21) passes through one end of the oxygen delivery pipe (2) and is located on the inner wall of the oxygen delivery chamber (24).
7. The confined space accident emergency rescue device according to claim 1, characterized in that: The protective jacket (1) has a strap (4) fixedly connected to the top side wall near the inflation connecting tube (3), and a Velcro (41) is fixedly connected to the strap (4).