Air pressure system for medical rescue cabin
By using a connecting assembly consisting of a frame and sealing strips in the passage device between the modular shelters, the problem of unstable pressure inside the shelters was solved, achieving reliable sealing and pressure stability, simplifying the structure and improving operational reliability.
Patent Information
- Application Number
- CN202520369863.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-04
AI Technical Summary
After a nuclear accident or attack, the pressure inside the shelter is unstable. Especially when multiple shelters are used in combination, pressure leakage can easily occur in the sealing gasket between the shelter and the shelter, affecting the reliability of the rescue cabin.
The device employs a channel assembly including a canopy and a first connecting component. The canopy includes a fixed end and a movable end. The first connecting component consists of a first frame, a second frame, and a sealing strip. The frame provides a flat mounting surface and contact surface. The sealing strip achieves multiple seals through the lip and base. The sealing effect is ensured by combining sealant and fasteners of the frame.
It effectively reduces pressure leakage when personnel enter and exit, ensures stable pressure inside the shelter, improves the reliability of sealing and the reliability of the passage device, reduces the risk of surface erosion of the sealing groove, and simplifies the structure.
Smart Images

Figure CN223930349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emergency rescue technology, specifically to a pneumatic system for a medical rescue cabin. Background Technology
[0002] Currently, nuclear technology is widely used in nuclear industry, military, health, scientific research, and other fields. Radioactive materials are normally kept in shielded and strictly managed environments. However, in the event of a nuclear accident or attack, radioactive materials can spread, leading to radioactive contamination of people and the environment, causing radiation damage to a certain population group. Emergency rescue is typically carried out by deploying mobile shelters (MWS). During the rescue process, personnel must follow a pre-defined procedure. To prevent radioactive materials from entering the MWS, a certain positive pressure must be maintained inside the MWS. Furthermore, to prevent recontamination, the airflow direction must be opposite to the personnel's movement route.
[0003] If pressure leakage occurs, it will lead to unstable pressure inside the shelter, or even reverse the airflow direction, affecting the reliability of the shelter. For example, in scenarios where multiple shelters are used together, the entrances and exits of two shelters need to be connected by a canopy. In related technologies, the movable end of the canopy and the shelter are sealed by a sealing gasket. When the surface is uneven, local pressure leakage can easily occur in the sealing gasket. Utility Model Content
[0004] In view of this, the present invention provides a pneumatic system for a medical rescue cabin to solve the problem of unstable pressure inside the cabin.
[0005] This utility model provides a pneumatic system for a medical rescue cabin, including a cabin and a passage device. The passage device is used to connect two cabins to form a connecting passage. The passage device includes a canopy and a first connecting assembly. The canopy includes a fixed end for fixing to one of the cabins and a movable end that can extend and retract relative to the fixed end. The first connecting assembly includes a first frame, a second frame, and a sealing strip. The first frame is disposed at the movable end, and the second frame is disposed on the cabin. The second frame forms a sealing groove for receiving the first frame, and the sealing strip is disposed between the first frame and the second frame.
[0006] Beneficial effects: The first and second frames press down on the sealing strip, thereby connecting the passage device and the cabin. By using the first frame to support the sealing strip, a flat mounting surface can be provided for the sealing strip. By setting the second frame on the cabin, a flat contact surface can be provided for the sealing strip, making the force on the sealing strip more uniform and avoiding local pressure leakage. By setting a more effective passage device, pressure leakage when personnel enter and exit the cabin can be reduced, which helps to make the pressure inside the cabin more stable.
[0007] In one alternative embodiment, the sealing strip includes a base and a lip, the base being disposed on the first frame and the lip extending obliquely from the base.
[0008] Beneficial effects: The lip can provide a larger range of deformation. During normal compression sealing, the lip bends and deforms under pressure. If the first frame and the second frame are affected by wind or other factors and move away from each other, the lip can rebound under its own elasticity to ensure that the sealing strip and the second frame are in contact, thereby providing a more reliable sealing effect.
[0009] In one alternative embodiment, the movable end is sandwiched between the base and the first frame, the base covering the edge of the movable end; the first connecting assembly further includes a first pressure plate that presses the base and the movable end against the first frame.
[0010] Beneficial effects: On the one hand, the base presses down on the edge of the movable end under the action of the first pressure plate, achieving a seal between the movable end and the first frame. On the other hand, the lip achieves a seal between the first frame and the second frame, so that the sealing strip can achieve two sealing effects at the same time, enriching the functionality of the sealing strip and simplifying the structure of the channel device.
[0011] In one alternative embodiment, the second frame is embedded in the container, and the opening of the sealing groove is flush with or lower than the surface of the container.
[0012] Beneficial effects: By embedding the second frame, the sealing groove can be hidden under the surface of the container, reducing the risk of the sealing groove surface being corroded by rain, snow, dust, etc., and improving the reliability of the channel device.
[0013] In one alternative embodiment, the channel device further includes a second connecting assembly; the second connecting assembly includes a third frame and a second pressure plate, the second pressure plate being disposed on the container, and the third frame pressing the fixed end against the second pressure plate.
[0014] Beneficial effects: The third frame is used to press the fixed end, thereby stably fixing the fixed end to the container. The second pressure plate provides a flat contact surface, which makes the force on the fixed end more uniform.
[0015] In one alternative embodiment, the channel device further includes a first sealant that fills the gaps between the third frame and the fixed end, and between the second pressure plate and the fixed end.
[0016] Beneficial effects: The fixed end does not require frequent disassembly. The use of the first sealant for sealing allows for easy testing and replacement of the first sealant without disassembly, ensuring that the sealing performance meets the requirements.
[0017] In one optional embodiment, a fresh air module is also included, which is installed on the cabin. The air inlet of the fresh air module is connected to the outside, and the air outlet of the fresh air module is located inside the cabin. The passage device is installed between the personnel exit and personnel entrance of two adjacent cabins.
[0018] Beneficial effects: The fresh air module can continuously supply clean fresh air into the cabin to maintain a positive pressure environment inside the cabin.
[0019] In one optional embodiment, the system further includes an exhaust module, wherein the air inlet of the exhaust module is located inside the container, the air outlet of the exhaust module is connected to the outside, and the exhaust module is adapted to control the air pressure.
[0020] Beneficial effects: When the pressure exceeds the set value, the exhaust module releases pressure, thereby creating a pressure gradient between or within the cabins. This helps to direct airflow from the clean area to the contaminated area, preventing personnel from being recontaminated.
[0021] In one alternative embodiment, the container further includes a drain pipe, a water inlet pipe, and a second sealant, the ends of which protrude from the bulkhead of the container, and the second sealant fills the gap between the drain pipe and the bulkhead and the gap between the water inlet pipe and the bulkhead.
[0022] Beneficial effects: Drainage pipes and water inlet pipes are used to meet the water supply and drainage needs inside the shelter. The use of a second sealant for sealing allows for easy testing and replacement of the second sealant without disassembly, ensuring that the sealing performance meets the requirements.
[0023] In one alternative embodiment, a water storage pipe is further included, which is connected to the outlet of the drain pipe, and the outlet of the water storage pipe is at a higher height than the outlet of the drain pipe.
[0024] Beneficial effect: Adding a water storage pipe to the outlet of the drain pipe can create a pressure head, preventing pressure leakage caused by gas escaping from the drain pipe. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a partial structural diagram of the pneumatic system for a medical rescue cabin according to an embodiment of the present invention, showing the state in which the passage device is connected between two cabins;
[0027] Figure 2 for Figure 1 A top sectional view of the channel device shown;
[0028] Figure 3 for Figure 1 A magnified view of a portion of region A in the middle;
[0029] Figure 4 for Figure 1 A magnified view of a portion of region B in the middle;
[0030] Figure 5 A schematic diagram of the positioning guide rod of the channel device;
[0031] Figure 6 for Figure 5 A magnified view of a portion of region C in the middle;
[0032] Figure 7 This is a partial structural diagram of the air pressure system for a medical rescue cabin according to an embodiment of the present invention, which shows the structure of the fresh air module;
[0033] Figure 8 This is a partial structural diagram of the pneumatic system for a medical rescue cabin according to an embodiment of the present invention, showing the connection relationship between the drain pipe and the water storage pipe.
[0034] Explanation of reference numerals in the attached figures:
[0035] 101. Canopy; 1021. First frame; 1022. Second frame; 1023. Sealing strip; 10231. Base; 10232. Lip; 1024. Positioning stud; 1025. Locking nut; 1031. Third frame; 1032. Second pressure plate; 1041. Telescopic pedal; 1042. Cable; 1043. Positioning guide rod; 10431. Sleeve rod; 104311. Rod cap; 104312. Ring groove; 2. Cabin; 301. Fresh air unit; 302. Air inlet pipe; 304. Filter screen; 305. Louver; 306. Protective net; 401. Drainage pipe; 402. Water storage pipe. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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, 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 protection scope of this utility model.
[0037] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a," "an," and "comprising" as used herein may also mean including the plural forms. The terms "comprising," "including," and "having" are inclusive and therefore indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.
[0038] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Furthermore, in the description of this application, unless otherwise expressly specified and limited, the terms "set up" and "connected" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.
[0039] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "end," "length," "inner," "outer," etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation, in addition to those depicted in the figure. For example, if the mechanism in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.
[0040] In related technologies, mobile cabins are deployed to carry out on-site emergency rescue. In order to avoid contamination of personnel and equipment inside the cabin, a certain positive pressure needs to be maintained inside the cabin, and the airflow direction needs to be opposite to the personnel's movement route.
[0041] In scenarios where multiple modular shelters are used in combination, the entrances and exits of two shelters need to be connected by a canopy. In related technologies, the movable end of the canopy is sealed to the shelter by a gasket. This gasket needs to surround the outer circumference of the door, thus having a relatively large size. When the shelter surface is uneven, the gasket is prone to uneven stress. Areas with less stress have relatively weaker pressure resistance, posing a risk of pressure leakage. If the surface undulations exceed the deformation range of the gasket's thickness, gaps may appear, directly leading to pressure leakage. Additionally, pressure leakage may also occur at the pipe connections within the shelter, resulting in unstable pressure within the shelter.
[0042] The following is combined with Figures 1 to 8 The following describes embodiments of the present invention.
[0043] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 According to an embodiment of the present invention, a pneumatic system for a medical rescue cabin is provided, including a cabin 2 and a channel device, the channel device being used to connect two cabins 2 to form a connecting channel.
[0044] The passage device includes a canopy 101 and a first connecting assembly. The canopy 101 includes a fixed end fixedly mounted on one of the cabins 2 and a movable end that can extend and retract relative to the fixed end. The first connecting assembly includes a first frame 1021, a second frame 1022 and a sealing strip 1023. The first frame 1021 is disposed on the movable end, and the second frame 1022 is disposed on the cabin 2. The second frame 1022 forms a sealing groove for receiving the first frame 1021, and the sealing strip 1023 is disposed between the first frame 1021 and the second frame 1022.
[0045] When not connected, the channel device is fixed to the container 2 and covers the entrance and exit of the container 2. When connection is required, the entrances and exits of the two containers 2 are aligned with each other, and the movable end extends and connects to the entrance and exit of the other container 2, thereby defining a connection channel between the entrances and exits of the two containers 2.
[0046] In the channel device of this utility model, the first frame 1021 and the second frame 1022 press down on the sealing strip 1023, thereby realizing the connection between the channel device and the cabin 2. By using the first frame 1021 to support the sealing strip 1023, a flat mounting surface can be provided for the sealing strip 1023. By setting the second frame 1022 on the cabin, a flat contact surface can be provided for the sealing strip 1023, making the force on the sealing strip 1023 more uniform and avoiding local pressure leakage.
[0047] By setting up a passage device that is more effective than related technologies, pressure leakage can be reduced when personnel enter and exit the shelter 2, which helps to make the pressure inside the shelter 2 more stable.
[0048] It is understood that the material of the sealing strip 1023 can be a conventional elastic and variable material. For example, in some embodiments, rubber can be used as the sealing strip 1023. Rubber provides excellent deformability and weather resistance, making it suitable for use in various field environments. Other materials that can be used can be found in related technologies and will not be elaborated here.
[0049] In some embodiments, the first frame 1021 and the second frame 1022 can be constructed by splicing profiles. For example, the first frame 1021 can be constructed by welding multiple square steel tubes end to end. The profiles have relatively stable quality consistency, which is suitable for providing a flat mounting surface and contact surface for the sealing strip 1023, ensuring the reliability of the seal. Optionally, the first frame 1021 and the second frame 1022 can be further polished before assembly to obtain a higher surface quality.
[0050] In some embodiments, the sealing strip 1023 includes a base 10231 and a lip 10232. The base 10231 is disposed on the first frame 1021, and the lip 10232 extends obliquely from the base 10231. Because the lip 10232 extends beyond the base 10231, it provides a greater range of deformation. During normal compression sealing, the lip 10232 bends and deforms under pressure. In the event of an unexpected situation, such as the awning 101 being subjected to strong external wind, causing the first frame 1021 to move away from the second frame 1022, the lip 10232 can rebound under its own elasticity, ensuring contact between the sealing strip 1023 and the second frame 1022, thereby providing a more reliable sealing effect.
[0051] Optionally, the sealing strip 1023 may have multiple spaced lips 10232 to create a multi-seal effect, for example, see reference Figure 3 The base 10231 has a total of six lips 10232. Even if one of the lips 10232 fails, the other lips 10232 can still complete the seal, ensuring the reliability of the seal.
[0052] To increase the clamping force exerted by the first frame 1021 and the second frame 1022 on the sealing strip 1023, in some embodiments, the first frame 1021 and the second frame 1022 are connected by threaded fasteners. For example, see... Figure 3 The threaded fastener includes a locating stud 1024 and a locking nut 1025. The locating stud 1024 is disposed within the sealing groove. The first frame 1021 has a through hole. During connection, the locating stud 1024 is inserted into the through hole and tightened with the help of the locking nut 1025. At this time, by adjusting the degree of screwing in the locking nut 1025, the magnitude of the clamping force can be flexibly controlled, which helps to ensure the consistency of the clamping force of the sealing strip 1023 at different positions.
[0053] It should be noted that, in order to avoid pressure leakage at the via, the via needs to be installed inside the connection channel.
[0054] In addition to threaded fasteners, the first frame 1021 and the second frame 1022 can also be connected by a structure such as a snap fastener. Other options can be found in relevant technologies and will not be elaborated here.
[0055] Continue to refer to Figure 3 In some embodiments, the movable end is sandwiched between the base 10231 and the first frame 1021, with the base 10231 covering the edge of the movable end.
[0056] On the one hand, the base 10231 presses against the edge of the movable end to achieve a seal between the movable end and the first frame 1021, preventing gas in the connecting channel from leaking from the gap between the movable end and the first frame 1021. On the other hand, the lip 10232 achieves a seal between the first frame 1021 and the second frame 1022, so that the sealing strip 1023 can achieve two sealing effects at the same time, enriching the functionality of the sealing strip 1023 and simplifying the structure of the channel device.
[0057] Optionally, the first connecting assembly further includes a first pressure plate (not shown in the figure), which presses the base 10231 and the movable end against the first frame 1021. The first pressure plate can be used to achieve the pressing by riveting or screw connection. The pressing force of the first pressure plate can make the base 10231 more reliably seal the edge of the movable end.
[0058] Of course, in addition to using the first pressure plate, adhesive or other methods can also be used to fix the base 10231 and the first frame 1021 together. Other methods that can be used can be referred to relevant technologies, which will not be elaborated here.
[0059] In some embodiments, the second frame 1022 is embedded in the container 2, and the opening of the sealing groove is flush with or lower than the surface of the container 2. By embedding the second frame 1022, the sealing groove can be hidden under the surface of the container 2, reducing the risk of the sealing groove surface being corroded by rain, snow, dust, etc., and improving the reliability of the passage device.
[0060] Reference Figure 4 In some embodiments, the channel device further includes a second connecting assembly; the second connecting assembly includes a third frame 1031 and a second pressure plate 1032, the second pressure plate 1032 being mounted on the container 2, and the third frame 1031 pressing the fixed end against the second pressure plate 1032. By using the third frame 1031 to press the fixed end, the fixed end is stably fixed to the container 2, and the second pressure plate 1032 provides a flat contact surface, resulting in more uniform force distribution on the fixed end.
[0061] Optionally, considering that the fixed end does not need to be frequently disassembled, in some embodiments, the channel device further includes a first sealant that fills the gaps between the third frame 1031 and the fixed end, and between the second pressure plate 1032 and the fixed end.
[0062] Compared to sealing strip 1023 or sealing gasket, using a primary sealant allows for easy testing and replacement of the primary sealant without disassembly, ensuring that the sealing performance meets requirements. Self-adhesive labels can be used as the primary sealant.
[0063] Reference Figure 1 and Figure 2 In some embodiments, the passageway device may further include a telescopic step 1041, which is disposed within the connecting passageway and connects the two cabins 2. Personnel move within the connecting passageway via the telescopic step 1041. Optionally, the passageway device may also include a cable 1042, which connects the telescopic step 1041 and the cabin 2, thereby providing support for the telescopic step 1041.
[0064] It is understandable that in complex on-site environments, the two modular shelters 2 cannot always be placed on the same horizontal plane, and differences in elevation are inevitable. To address this, in some embodiments, the telescopic footboard 1041 can swing within a set angle range (e.g., within 15°) to adapt to changes in elevation between the modular shelters 2 within a certain range.
[0065] The telescopic pedal 1041 can swing in various ways, for example... Figure 1 In the illustrated embodiment, the telescopic pedal 1041 is composed of multiple connected plates, with two plates hinged together to provide rotational freedom. Alternatively, in other embodiments not shown, one end of the telescopic pedal 1041 is hinged to the container 2 located on the fixed end side, allowing the entire telescopic pedal 1041 to rotate so that the other end of the telescopic pedal 1041 can adapt to the height difference between the containers 2.
[0066] Optionally, refer to Figure 1 and Figure 5 In some embodiments, the channel device may also include a positioning guide rod 1043, one end of which is fixedly mounted on one of the cabins 2 (e.g., the cabin 2 on the fixed end side). The positioning guide rod 1043 includes a plurality of sleeve rods 10431 that are sequentially sleeved, so that the other end of the positioning guide rod 1043 can be telescopically connected to another cabin 2.
[0067] Before connecting the canopy 101, the passage device can first extend the positioning guide rod 1043 to form a basic positioning frame between the two cabins 2 to facilitate the subsequent connection of the canopy 101; after connecting the canopy 101, the positioning guide rod 1043 can also serve as a handrail and guardrail to facilitate the passage of personnel.
[0068] In some embodiments, the positioning guide rod 1043 can also swing within a set angle range (e.g., within 15°) to adapt to changes in elevation difference between the cabins 2 within a certain range.
[0069] It is understood that the end of the sleeve 10431 is provided with a sleeve cap 104311, which is embedded in another sleeve 10431, preventing the sleeves 10431 from separating through contact limiting. To achieve swinging, exemplarily, refer to... Figure 6 In some embodiments, at least a portion of the sleeve 10431 has an arc-shaped cap 104311 to avoid another sleeve 10431, and the sleeve 10431 also includes an annular groove 104312, the annular groove 104312 and the cap 104311 are located at the same end of the sleeve 10431, and the annular groove 104312 is recessed inward to avoid another sleeve 10431.
[0070] It is understood that, in some embodiments, the air pressure system for the medical rescue cabin also includes a fresh air module, which is installed on the cabin 2. The air inlet of the fresh air module is connected to the outside, and the air outlet of the fresh air module is located inside the cabin 2.
[0071] The fresh air module delivers clean fresh air into cabin 2, thereby maintaining cabin 2 in the required positive pressure environment.
[0072] In some embodiments, the pneumatic system for the medical rescue cabin further includes an exhaust module. The exhaust module has an air inlet located inside the cabin 2 and an air outlet connected to the outside. The exhaust module is adapted to control the air pressure. When the pressure exceeds a set value, the exhaust module releases pressure, thereby creating a pressure gradient between or within the cabins 2. This helps to direct airflow from the clean area to the contaminated area, preventing personnel from being recontaminated.
[0073] Meanwhile, the fresh air module and exhaust module create an air exchange cycle within cabin 2, efficiently refreshing the air inside cabin 2, expelling pollutants from the air, and maintaining a clean environment with positive pressure.
[0074] In some embodiments, refer to Figure 7 The fresh air module includes a fresh air unit 301 and an air intake pipe 302. The fresh air unit 301 is installed inside the cabin 2. One end of the air intake pipe 302 is connected to the fresh air unit 301, and the other end is connected to the opening of the cabin 2.
[0075] Optionally, in some embodiments, the fresh air module may further include a filter 304 disposed in the air intake pipe 302. The filter 304 is used to adsorb and filter pollutants in the air, preventing interference with the operation of the fresh air unit 301. Exemplarily, the fresh air module may also include louvers 305 and a protective net 306 disposed at the inlet of the air intake pipe 302 to prevent foreign objects from entering the air intake pipe 302.
[0076] In some embodiments, the pneumatic system for the medical rescue cabin further includes a drain pipe 401, a water inlet pipe, and a second sealant, the ends of which protrude from the cabin wall of the cabin 2, and the second sealant fills the gap between the drain pipe 401 and the cabin wall, as well as the gap between the water inlet pipe and the cabin wall.
[0077] Drainage pipe 401 and water inlet pipe are used to meet the water supply and drainage needs inside container 2. Second sealant is selected for sealing, which allows for easy testing and replacement of the second sealant without disassembly, ensuring that the sealing performance meets the requirements.
[0078] Furthermore, referring to Figure 8 In some embodiments, the pneumatic system for the medical rescue cabin also includes a water storage pipe 402 connected to the outlet of the drain pipe 401, with the outlet of the water storage pipe 402 being higher than the outlet of the drain pipe 401. Adding a water storage pipe 402 to the outlet of the drain pipe 401 creates a pressure head, preventing pressure leakage caused by gas escaping from the drain pipe 401.
[0079] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A pneumatic system for a medical rescue cabin, characterized in that, include: Fangcang (2); A channel device for connecting the two of the containers (2) to form a connecting channel; The passage device includes a canopy (101) and a first connecting assembly. The canopy (101) includes a fixed end fixedly mounted on one of the cabins and a movable end that can extend and retract relative to the fixed end. The first connecting assembly includes a first frame (1021), a second frame (1022), and a sealing strip (1023). The first frame (1021) is disposed at the movable end, the second frame (1022) is disposed on the container, the second frame (1022) forms a sealing groove for receiving the first frame (1021), and the sealing strip (1023) is disposed between the first frame (1021) and the second frame (1022).
2. The pneumatic system for a medical rescue cabin according to claim 1, characterized in that, The sealing strip (1023) includes a base (10231) and a lip (10232), the base (10231) being disposed on the first frame (1021), and the lip (10232) extending obliquely from the base (10231).
3. The pneumatic system for a medical rescue cabin according to claim 2, characterized in that, The movable end is sandwiched between the base (10231) and the first frame (1021), and the base (10231) covers the edge of the movable end; The first connecting assembly further includes a first pressure plate, which presses the base (10231) and the movable end against the first frame (1021).
4. The pneumatic system for a medical rescue cabin according to claim 1, characterized in that, The second frame (1022) is embedded in the container, and the opening of the sealing groove is flush with or lower than the surface of the container.
5. The pneumatic system for a medical rescue cabin according to claim 1, characterized in that, The channel device also includes a second connection component; The second connecting assembly includes a third frame (1031) and a second pressure plate (1032), the second pressure plate (1032) being used to mount on the container, and the third frame (1031) pressing the fixed end against the second pressure plate (1032).
6. The pneumatic system for a medical rescue cabin according to claim 5, characterized in that, The channel device further includes a first sealant that fills the gaps between the third frame (1031) and the fixed end, and between the second pressure plate (1032) and the fixed end.
7. The pneumatic system for a medical rescue cabin according to claim 1, characterized in that, It also includes a fresh air module, which is installed on the cabin (2). The air inlet of the fresh air module is connected to the outside, and the air outlet of the fresh air module is located inside the cabin (2).
8. The pneumatic system for a medical rescue cabin according to claim 7, characterized in that, It also includes an exhaust module, the air inlet of which is located inside the container (2), the air outlet of which is connected to the outside, and the exhaust module is adapted to control the air pressure.
9. The pneumatic system for a medical rescue cabin according to claim 7, characterized in that, It also includes a drain pipe (401), a water inlet pipe, and a second sealant. The ends of the drain pipe (401) and the water inlet pipe extend through the bulkhead of the container (2). The second sealant fills the gap between the drain pipe (401) and the bulkhead, as well as the gap between the water inlet pipe and the bulkhead.
10. The pneumatic system for a medical rescue cabin according to claim 9, characterized in that, It also includes a water storage pipe (402) connected to the outlet of the drain pipe (401), and the outlet of the water storage pipe (402) is higher than the outlet of the drain pipe (401).