Channel positive pressure airtight system for medical rescue cabin

Abstract

The utility model relates to the technical field of square cabins, and discloses a channel positive pressure airtight system for a medical rescue cabin, the channel positive pressure airtight system for the medical rescue cabin comprises a cabin, a cabin door, an interlocking module, a fresh air module and an exhaust module, the cabin comprises a changing room, a decontamination room, a skin drying room and a reinspection room which are communicated in sequence, the cabin doors are arranged between the communicated cabins, the interlocking module comprises a plurality of first electric control locks, the first electric control locks are arranged on the cabin door between the decontamination chamber and the dressing chamber and the cabin door between the decontamination chamber and the skin drying chamber, when any first electric control lock is in an unlocked state, the other first electric control locks are in a locked state, and the fresh air module comprises a first fresh air fan. The first fresh air machine is used for conveying fresh air to the rechecking room, the air exhaust module comprises a first air exhaust valve and a second air exhaust valve, the first air exhaust valve is communicated with the dressing room and the external environment, and the second air exhaust valve is communicated with the rechecking room and the skin drying room. According to the utility model, each cabin is not easy to pollute.

Description

Technical Field

[0001] This utility model relates to the field of modular hospital technology, specifically to a positive pressure airtight system for the passageway of a medical rescue cabin. Background Technology

[0002] Currently, nuclear technology is widely used in nuclear industry, military, health, scientific research and other fields, and radioactive materials are normally kept in shielded and strictly managed environments. However, in the event of a nuclear accident or nuclear attack, radioactive materials will spread, leading to radioactive contamination of people and the environment, and causing radiation damage to a certain population group.

[0003] Medical rescue for personnel is typically carried out using mobile shelters deployed on-site, such as decontamination to remove radioactive materials from the personnel's skin. To prevent personnel from being recontaminated by radioactive materials in the air after decontamination, clean air is continuously supplied into the mobile shelter through a fresh air system to maintain a certain positive pressure. This serves two purposes: firstly, it prevents contaminated air from the outside environment from entering the mobile shelter; secondly, it creates an airflow in the compartments opposite to the flow of personnel, preventing air from flowing from the upstream compartments to the downstream compartments.

[0004] In related technologies, exhaust valves are typically installed in each compartment, and the opening of each exhaust valve is independently controlled to form a pressure gradient that decreases from large to small. In some application scenarios, due to external wind disturbances, the air supply volume of the fresh air system and the exhaust volume of the exhaust valves fluctuate, which may cause external air to enter the compartment through the exhaust valves. In some cases, the pressure gradient may be disrupted, and the gas may flow in reverse between compartments, resulting in contamination of the compartments.

[0005] Increasing the rated pressure of the compartment with the lowest pressure and the rated pressure difference between adjacent compartments can improve the flow field's resistance to disturbances, but it will also raise the overall pressure level of the compartments. This will not only cause discomfort to the people inside the compartments, but also place excessive demands on the air supply volume of the fresh air system, thus increasing the cost of the container. Utility Model Content

[0006] In view of this, the present invention provides a positive pressure airtight system for the passageway of a medical rescue cabin to solve the problem of easy contamination of the cabin.

[0007] This utility model provides a positive pressure airtight system for a medical rescue cabin, including a cabin, a door, an interlock module, a fresh air module, and an exhaust module. The cabin includes a changing room, a decontamination room, a drying room, and a re-examination room connected in sequence. The door is located between the connected cabins. The interlock module includes multiple first electric locks. The door between the decontamination room and the changing room, and the door between the decontamination room and the drying room are equipped with first electric locks. When any one of the first electric locks is unlocked, the others are locked. The fresh air module includes a first fresh air unit for supplying fresh air to the re-examination room. The exhaust module includes a first exhaust valve and a second exhaust valve. The first exhaust valve connects the changing room to the external environment and can open in response to the pressure in the changing room being greater than a first positive pressure. The second exhaust valve connects the re-examination room and the drying room and can open in response to the pressure in the re-examination room being greater than a second positive pressure, where the second positive pressure is greater than the first positive pressure.

[0008] Beneficial effects: In medical rescue operations, personnel first remove soiled clothing in the changing room, then enter the decontamination room to wash and remove dirt from their bodies, dry themselves in the drying room, and finally enter the re-examination room to check their cleanliness. During this process, outside air is filtered by a first fresh air unit before entering the re-examination room, then passes through a second exhaust valve into the drying room, and finally exits into the changing room as personnel move in and out of the decontamination room, ultimately being exhausted to the outside environment through the first exhaust valve. This creates an airflow direction in the cabin that is opposite to the personnel flow. On the one hand, this utility model utilizes the first... The electronic lock acts as a buffer in the decontamination chamber, preventing direct connection between the changing room and the drying room. This further ensures unidirectional airflow between the changing room, decontamination chamber, and drying room, preventing contamination of other compartments outside the changing room. On the other hand, the buffering effect of the decontamination chamber means that the exhaust module does not need to actively control the pressure of the decontamination chamber and the drying room, reducing the number of pressure gradient stages. This allows for the use of higher initial positive pressure and pressure differential, reducing the risk of external air contamination of the changing room, and ultimately making each compartment less susceptible to contamination.

[0009] In one alternative embodiment, the chamber further includes a dose detection chamber, which is connected to the re-examination chamber.

[0010] Beneficial effects: In medical rescue involving radioactive materials, personnel go to the dosimetry room to test for radioactive materials in their bodies after a second check confirms that their body surface is clean, and then leave the medical rescue cabin. The dosimetry room helps to accurately determine the current health status of personnel, providing data support for subsequent targeted treatment.

[0011] In one alternative embodiment, the fresh air module includes a second fan for supplying fresh air to the dose detection chamber, and the exhaust module includes a third exhaust valve that connects the dose detection chamber to the external environment and is capable of opening in response to a pressure in the dose detection chamber that is greater than a third positive pressure, wherein the third positive pressure is greater than the second positive pressure.

[0012] Beneficial effects: Using an independent second fan and a third exhaust valve to control the pressure in the dosimetry chamber can reduce the load on the first fan and ensure stable pressure control. In addition, after the test is completed, when personnel leave the medical rescue cabin, unfiltered outside air may enter the dosimetry chamber. By setting up a third exhaust valve that connects to the outside, the contamination in the dosimetry chamber can be prevented from spreading to other chambers.

[0013] In one optional implementation, the first positive pressure is not less than 200 Pa, and the pressure difference between the first positive pressure, the second positive pressure, and the third positive pressure is not less than 50 Pa.

[0014] Beneficial effects: Using a pressure greater than 200 Pa can reduce the risk of gas entering the changing room through the first exhaust valve under external wind interference, making the positive pressure airtight system of the medical rescue cabin more suitable for operation in extreme environments such as the sea surface; using a pressure difference greater than 50 Pa can reduce the risk of gas flowing backward between cabins when pressure fluctuates, ultimately making each cabin less susceptible to contamination.

[0015] In one alternative embodiment, the cabin further includes a first buffer room and a second buffer room, the first buffer room being connected to the changing room and the second buffer room being connected to the dose detection room, and the cabin door being provided between the first buffer room and the external environment and between the second buffer room and the external environment.

[0016] Beneficial effects: Personnel enter the medical rescue cabin from the first buffer room and leave the medical rescue cabin from the second buffer room, thereby reducing the amount of pollutants brought into the medical rescue cabin by personnel when entering and exiting.

[0017] In one optional embodiment, the interlocking module further includes a plurality of second electronic locks and a plurality of third electronic locks, wherein the second electronic locks are provided on the hatch between the first buffer room and the external environment and the hatch between the first buffer room and the changing room, and when any one of the second electronic locks is in the unlocked state, the remaining second electronic locks are in the locked state; the third electronic locks are provided on the hatch between the second buffer room and the external environment and the hatch between the second buffer room and the dose detection room, and when any one of the third electronic locks is in the unlocked state, the remaining third electronic locks are in the locked state.

[0018] Beneficial effects: Installing a second and third electronic lock can prevent the changing room and dosage detection room from being directly connected to the outside environment, thereby reducing the amount of contaminants brought into the medical rescue cabin by personnel when entering and exiting.

[0019] In one alternative embodiment, the system further includes a modular container and a connecting passage, the modular container forming one or more of the compartments, and the plurality of modular containers being sequentially and sealed together via the connecting passage.

[0020] Beneficial effects: By introducing multiple modular units, the space of the medical rescue cabin is expanded, which is conducive to the structural design of the medical rescue cabin; by adopting a sealed connection channel, gas leakage at the connection points of the modular units can be avoided, the positive pressure in the cabin can be better maintained, and the risk of contamination of the cabin can be reduced.

[0021] In one optional embodiment, the connection channel includes a canopy and a first connection assembly, wherein the canopy is used to connect two of the cabins, the canopy includes a fixed end for being fixedly disposed on the cabin and a movable end that can extend and retract relative to the fixed end, the first connection assembly includes a first frame, a second frame and a sealing strip, the first frame is disposed on the movable end, 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.

[0022] Beneficial effects: The first and second frames press down on the sealing strip, thereby connecting the connecting channel 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.

[0023] In one optional embodiment, a drainage module is further included, the drainage module comprising a drainage network and a water storage pipe, wherein the drainage network includes a first inlet and a first outlet, the first inlet being connected to the drain outlet of the compartment, and the water storage pipe includes a second inlet and a second outlet, the second inlet being connected to the first outlet, and the second outlet being higher than the second inlet in the vertical direction.

[0024] Beneficial effects: The second outlet is vertically higher than the second inlet, which forms a water seal in the water storage pipe during daily use, creating a pressure-holding effect and preventing pressure leakage. By using a detachable water storage pipe and placing it at the end of the drainage route, when cleaning and maintenance are required, simply disassemble the water storage pipe and reconnect the collection pipe to the drain valve to eliminate the water seal in the drainage route, allowing wastewater to drain smoothly and facilitating cleaning and maintenance.

[0025] In one optional embodiment, the water storage pipe includes a first section, a second section, and a third section connected in sequence, with the second water inlet located in the first section and the second water outlet located in the third section. The first section and the third section extend horizontally, and the third section is higher than the first section.

[0026] Beneficial effects: The use of horizontally extended first and third sections facilitates the connection between the water storage pipe and the drain valve, as well as the connection between the water storage pipe and the external collection pipe, making the drainage device used in the medical rescue cabin more convenient to use. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the structure of a positive pressure airtight system for a medical rescue cabin according to an embodiment of the present invention, showing the movement route of personnel inside the medical rescue cabin;

[0029] Figure 2 This is a schematic diagram of the structure of a positive pressure airtight system for a medical rescue cabin according to an embodiment of the present invention, showing the flow path of gas within the medical rescue cabin;

[0030] Figure 3 This is a schematic diagram of the connecting channel according to an embodiment of the present utility model, showing the state of the connecting channel when connecting two modular cabins;

[0031] Figure 4 This is a schematic diagram of the connection channel according to an embodiment of the present invention, showing the state of the connection channel when it is retracted;

[0032] Figure 5 for Figure 3 A magnified view of a portion of region A in the middle;

[0033] Figure 6 for Figure 3 A magnified view of a portion of region B in the middle;

[0034] Figure 7 This is a schematic diagram of the drainage module according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 101. Changing room; 102. Decontamination room; 103. Drying room; 104. Re-inspection room; 105. Dosage testing room; 106. First buffer room; 107. Second buffer room; 201. Door; 202. Container cabin; 301. First fresh air unit; 302. Second fresh air unit; 401. First exhaust valve; 402. Second exhaust valve; 403. Third exhaust valve; 5. Connecting passage; 501. Canopy; 5021. First frame; 5022. Second Frame; 5023, Sealing strip; 50231, Base; 50232, Lip; 5024, Positioning stud; 5025, Locking nut; 5031, Third frame; 5032, Second pressure plate; 5041, Telescopic pedal; 5042, Cable; 601, Drainage network; 6011, Main pipeline; 6012, Branch pipeline; 602, Drain valve; 603, Water storage pipe; 6031, First section; 6032, Second section; 6033, Third section. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] Medical rescue cabins are used to carry out emergency medical rescue of personnel at the scene of various accidents and disasters. Medical rescue cabins are usually equipped with a positive pressure airtight system, which uses fresh air fans and exhaust valves to create positive pressure inside and generate directional airflow.

[0042] In scenarios such as maritime rescue, the ambient air pressure around the medical rescue cabin fluctuates due to external wind disturbances. This causes changes in the air supply volume of the fresh air unit and the exhaust volume of the exhaust valve, which may lead to external gas entering the cabin through the exhaust valve. In some cases, the pressure gradient may be disrupted, causing gas to flow backward between the cabins, resulting in cabin contamination.

[0043] Increasing the rated pressure of the compartment with the lowest pressure and the rated pressure difference between adjacent compartments can improve the flow field's resistance to disturbances, but it will also raise the overall pressure level of the compartments, placing excessive demands on the air supply volume of the fresh air system and increasing the cost of the 202 modular cabin.

[0044] The following is combined with Figures 1 to 7The following describes embodiments of the present invention.

[0045] Reference Figure 1 and Figure 2 According to an embodiment of the present invention, a positive pressure airtight system for a medical rescue cabin is provided, including a cabin, a door 201, an interlock module, a fresh air module, and an exhaust module.

[0046] The system comprises a changing room 101, a decontamination room 102, a drying room 103, and a re-examination room 104, which are connected in sequence. Doors 201 are located between the connected compartments. The interlocking module includes multiple first-level electric locks. First-level electric locks are installed on the doors 201 between the decontamination room 102 and the changing room 101, and on the doors 201 between the decontamination room 102 and the drying room 103. When any one of the first-level electric locks is unlocked, the remaining first-level electric locks are locked. The fresh air module includes a... A fresh air unit 301 is used to supply fresh air to the re-examination room 104. The exhaust module includes a first exhaust valve 401 and a second exhaust valve 402. The first exhaust valve 401 is connected to the changing room 101 and the external environment and can be opened in response to the pressure in the changing room 101 being greater than a first positive pressure. The second exhaust valve 402 is connected to the re-examination room 104 and the drying room 103 and can be opened in response to the pressure in the re-examination room 104 being greater than a second positive pressure, where the second positive pressure is greater than the first positive pressure.

[0047] During medical rescue, personnel first remove soiled clothing in changing room 101, then enter decontamination room 102 to clean and remove dirt from their bodies, dry their bodies in drying room 103, and finally enter re-examination room 104 to check their cleanliness. If the inspection is satisfactory, the next stage of medical rescue is arranged; if the inspection is unsatisfactory, the cleaning is repeated. During this process, outside air is filtered by the first fresh air unit 301 and then enters re-examination room 104, and then enters drying room 103 through second exhaust valve 402. As personnel enter and exit decontamination room 102 and enter changing room 101, the air is finally discharged to the outside environment through first exhaust valve 401, thus creating an airflow direction opposite to the personnel flow in the cabin.

[0048] On the one hand, the present invention utilizes the first electronic lock to make the decontamination chamber 102 act as a buffer, avoiding the situation where the changing room 101 and the drying room 103 are directly connected, further ensuring the unidirectional flow of air between the changing room 101, the decontamination chamber 102, and the drying room 103, and preventing other compartments outside the changing room 101 from being contaminated.

[0049] On the other hand, the buffering effect of the decontamination chamber 102 means that the exhaust module does not need to actively control the pressure of the decontamination chamber 102 and the drying chamber 103, reducing the number of pressure gradient stages, which helps to adopt a higher first positive pressure and pressure difference, and reduces the risk of external air contamination of the changing room 101.

[0050] Specifically, in the relevant technology, the pressure of changing room 101, decontamination room 102, dry room 103 and re-examination room 104 is actively controlled by their respective exhaust valves to form a four-level pressure gradient. Given the limited maximum pressure that the fresh air unit can provide, this design may result in either the rated positive pressure (i.e., the first positive pressure) of changing room 101 being too low to resist instantaneous external high pressure, or the pressure difference between the compartments being too small, making it easy for reverse flow to occur when the pressure fluctuates.

[0051] This invention utilizes a decontamination chamber 102 with a buffering function, which enables directional airflow in the four chambers to be guaranteed with only two pressure gradients. This helps to reduce the risk of external air contamination of the changing room 101 by using a higher first positive pressure and pressure difference.

[0052] Therefore, the positive pressure airtight system for the passageway of the medical rescue cabin of this invention can make each cabin less susceptible to contamination.

[0053] Optionally, in some embodiments, the changing room 101 and the re-examination room 104 are directly connected, so that personnel who fail the inspection can return directly from the re-examination room 104 to the changing room 101, avoiding reverse flow of people.

[0054] Optionally, in some embodiments, the first positive pressure can be set to not less than 200 Pa, and the pressure difference between the first positive pressure and the second positive pressure can be set to not less than 50 Pa. Using a pressure greater than 200 Pa can reduce the risk of gas entering the changing room 101 from the first exhaust valve 401 under external wind interference, making the positive pressure airtight system of the medical rescue cabin more suitable for operation in extreme environments such as the sea surface; using a pressure difference greater than 50 Pa can reduce the risk of gas flowing backward between cabins when pressure fluctuates, ultimately making each cabin less susceptible to contamination.

[0055] Taking a first positive pressure of 200 Pa and a pressure difference of 50 Pa as an example, if the pressure gradient design method in the relevant technology is adopted, the pressure of the four chambers will be increased step by step, and the rated positive pressure of the re-inspection chamber 104 should be 350 Pa. However, in this utility model, the re-inspection chamber 104 only needs a positive pressure of 250 Pa, which effectively reduces the implementation cost.

[0056] It is understood that the positive pressure airtight system for medical rescue cabins of this invention is applicable to various medical rescue cabins that need to be deployed in complex and harsh on-site environments, such as medical rescue cabins used in nuclear emergency events at sea. Other application scenarios can be referred to the introduction in related technologies, which will not be elaborated here.

[0057] Taking nuclear emergency response as an example, in some embodiments, the compartment also includes a dose detection chamber 105, which is connected to a re-inspection chamber 104.

[0058] In medical rescue operations involving radioactive materials, personnel undergo a second check to confirm that their body surface is clean before proceeding to Dosimetry Room 105 for internal radioactive material testing. They then leave the medical rescue cabin. Dosimetry Room 105 helps to accurately determine the personnel's current health status, providing data support for subsequent targeted treatment.

[0059] In some embodiments, the fresh air module includes a second fan for supplying fresh air to the dose detection chamber 105, and the exhaust module includes a third exhaust valve 403 that connects the dose detection chamber 105 to the external environment and is capable of opening in response to a pressure in the dose detection chamber 105 that is greater than a third positive pressure, wherein the third positive pressure is greater than the second positive pressure.

[0060] Using an independent second fan and a third exhaust valve 403 to control the pressure of the dose detection chamber 105 separately can reduce the load on the first fan and ensure stable pressure control. In addition, after the test is completed, when personnel leave the medical rescue cabin, unfiltered outside gas may enter the dose detection chamber 105. By setting a third exhaust valve 403 that connects to the outside, the contamination of the dose detection chamber 105 can be prevented from spreading to other chambers.

[0061] In some embodiments, the first positive pressure is not less than 200 Pa, and the pressure difference between the first positive pressure, the second positive pressure, and the third positive pressure is not less than 50 Pa.

[0062] In some embodiments, the cabin further includes a first buffer chamber 106 and a second buffer chamber 107, the first buffer chamber 106 being connected to a changing room 101, the second buffer chamber 107 being connected to a dose detection chamber 105, and a door 201 being disposed between the first buffer chamber 106 and the external environment and between the second buffer chamber 107 and the external environment.

[0063] Personnel enter the medical rescue cabin from the first buffer room 106 and exit from the second buffer room 107, thereby reducing the amount of pollutants brought into the medical rescue cabin when personnel enter and exit.

[0064] Optionally, in some embodiments, the interlocking module further includes multiple second and third electronic locks. Second electronic locks are installed on the hatch 201 between the first buffer chamber 106 and the external environment, and on the hatch 201 between the first buffer chamber 106 and the changing room 101. When any one of the second electronic locks is unlocked, the others are locked. Third electronic locks are installed on the hatch 201 between the second buffer chamber 107 and the external environment, and on the hatch 201 between the second buffer chamber 107 and the dose detection chamber 105. When any one of the third electronic locks is unlocked, the others are locked. The installation of second and third electronic locks prevents the changing room 101 and the dose detection chamber 105 from being directly connected to the external environment, thereby reducing the amount of contaminants brought into the medical rescue cabin by personnel entering and exiting.

[0065] It is understandable that the medical rescue cabin is constructed from modular unit 202. The size of a single modular unit 202 is limited, making it difficult to include too many compartments. Therefore, in some embodiments, reference is made to... Figure 1 and Figure 2 The positive pressure airtight system for the medical rescue cabin also includes a container 202 and a connecting channel 5. The container 202 forms one or more compartments, and multiple containers 202 are sequentially sealed and connected through the connecting channel 5.

[0066] By introducing multiple modular units 202, the space of the medical rescue cabin is expanded, which is helpful for the structural design of the medical rescue cabin; by adopting a sealed connection channel 5, gas leakage at the connection points of the modular units 202 can be avoided, the positive pressure in the cabin can be better maintained, and the risk of contamination of the cabin can be reduced.

[0067] Optionally, refer to Figure 3 and Figure 4 In some embodiments, the connecting channel 5 includes a canopy 501 and a first connecting assembly. The canopy 501 is used to connect two shelters 202. The canopy 501 includes a fixed end for fixing on the shelter 202 and a movable end that can extend and retract relative to the fixed end. The first connecting assembly includes a first frame 5021, a second frame 5022 and a sealing strip 5023. The first frame 5021 is disposed on the movable end, the second frame 5022 is disposed on the shelter 202, and the second frame 5022 forms a sealing groove for receiving the first frame 5021. The sealing strip 5023 is disposed between the first frame 5021 and the second frame 5022.

[0068] When not connected, the connecting channel 5 is set on the container 202 through the fixed end, and the connecting channel 5 covers the entrance and exit of the container 202. When connection is required, the entrances and exits of the two containers 202 are aligned with each other, and the movable end extends and connects to the entrance and exit of the other container 202, thereby defining the connecting channel 5 between the entrances and exits of the two containers 202.

[0069] The first frame 5021 and the second frame 5022 press down on the sealing strip 5023, thereby connecting the connecting channel 5 and the cabin 202. By using the first frame 5021 to support the sealing strip 5023, a flat mounting surface can be provided for the sealing strip 5023. By setting the second frame 5022 on the cabin 202, a flat contact surface can be provided for the sealing strip 5023, making the force on the sealing strip 5023 more uniform and avoiding local pressure leakage.

[0070] The sealing strip 5023 can be made of conventional elastic and variable materials; for example, in some embodiments, rubber can be used as the sealing strip 5023. 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.

[0071] In some embodiments, the first frame 5021 and the second frame 5022 can be constructed by splicing profiles. For example, the first frame 5021 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 5023, ensuring the reliability of the seal. Optionally, the first frame 5021 and the second frame 5022 can be further polished before assembly to obtain a higher surface quality.

[0072] In some embodiments, the sealing strip 5023 includes a base 50231 and a lip 50232. The base 50231 is disposed on the first frame 5021, and the lip 50232 extends obliquely from the base 50231. Because the lip 50232 extends beyond the base 50231, it provides a greater range of deformation. During normal compression sealing, the lip 50232 bends and deforms under pressure. In the event of an unexpected situation, such as the awning 501 being subjected to strong external wind, causing the first frame 5021 to move away from the second frame 5022, the lip 50232 can rebound under its own elasticity, ensuring contact between the sealing strip 5023 and the second frame 5022, thereby providing a more reliable sealing effect.

[0073] Optionally, the sealing strip 5023 may have multiple spaced lips 50232 to create a multi-seal effect, for example, see reference Figure 5The base 50231 has a total of six lips 50232. Even if one of the lips 50232 fails, the other lips 50232 can still complete the seal, ensuring the reliability of the seal.

[0074] To increase the clamping force exerted by the first frame 5021 and the second frame 5022 on the sealing strip 5023, in some embodiments, the first frame 5021 and the second frame 5022 are connected by threaded fasteners. For example, see... Figure 5 The threaded fastener includes a positioning stud 5024 and a locking nut 5025. The positioning stud 5024 is disposed within the sealing groove. The first frame 5021 has a through hole. During connection, the positioning stud 5024 is inserted into the through hole and tightened with the help of the locking nut 5025. At this time, by adjusting the degree of screwing in the locking nut 5025, the magnitude of the clamping force can be flexibly controlled, which helps to ensure the consistency of the clamping force of the sealing strip 5023 at different positions.

[0075] It should be noted that, in order to avoid pressure leakage at the via, the via needs to be set inside the connecting channel 5.

[0076] In addition to threaded fasteners, the first frame 5021 and the second frame 5022 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.

[0077] Continue to refer to Figure 5 In some embodiments, the movable end is sandwiched between the base 50231 and the first frame 5021, with the base 50231 covering the edge of the movable end.

[0078] On the one hand, the base 50231 presses down on the edge of the movable end to achieve a seal between the movable end and the first frame 5021, preventing gas in the connecting channel 5 from leaking from the gap between the movable end and the first frame 5021. On the other hand, the lip 50232 achieves a seal between the first frame 5021 and the second frame 5022, so that the sealing strip 5023 can achieve two sealing effects at the same time, enriching the functionality of the sealing strip 5023 and simplifying the structure of the connecting channel 5.

[0079] Optionally, the first connecting assembly further includes a first pressure plate (not shown in the figure), which presses the base 50231 and the movable end against the first frame 5021. 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 50231 more reliably seal the edge of the movable end.

[0080] Of course, in addition to using the first pressure plate, adhesive or other methods can also be used to fix the base 50231 and the first frame 5021 together. Other methods that can be used can be referred to relevant technologies, which will not be elaborated here.

[0081] In some embodiments, the second frame 5022 is embedded in the container 202, and the opening of the sealing groove is flush with or lower than the surface of the container 202. By embedding the second frame 5022, the sealing groove can be hidden under the surface of the container 202, reducing the risk of the sealing groove surface being corroded by rain, snow, dust, etc., and improving the reliability of the connection channel 5.

[0082] Reference Figure 6 In some embodiments, the connecting channel 5 further includes a second connecting assembly; the second connecting assembly includes a third frame 5031 and a second pressure plate 5032, the second pressure plate 5032 being used for mounting on the building, and the third frame 5031 pressing the fixed end against the second pressure plate 5032. Using the third frame 5031 to press the fixed end firmly secures it to the building, while the second pressure plate 5032 provides a flat contact surface, resulting in more even force distribution on the fixed end.

[0083] Optionally, considering that the fixed end does not need to be disassembled frequently, in some embodiments, the connecting channel 5 further includes a first sealant, which fills the gap between the third frame 5031 and the fixed end, and between the second pressure plate 5032 and the fixed end.

[0084] Compared to sealing strips (5023) or gaskets, 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.

[0085] Reference Figure 3 and Figure 4 In some embodiments, the connecting passage 5 may further include a telescopic step 5041, which is disposed within the connecting passage 5 and connects the two buildings. Personnel move within the connecting passage 5 via the telescopic step 5041. Optionally, the connecting passage 5 may also include a cable 5042, which connects the telescopic step 5041 and the building, thereby providing support for the telescopic step 5041.

[0086] In some embodiments, refer to Figure 7The positive pressure airtight system for the medical rescue cabin also includes a drainage module, which includes a drainage pipe network 601 and a water storage pipe 603. The drainage pipe network 601 includes a first water inlet and a first water outlet. The first water inlet is connected to the drain of the cabin. The water storage pipe 603 includes a second water inlet and a second water outlet. The second water inlet is connected to the first water outlet, and the second water outlet is higher than the second water inlet in the vertical direction.

[0087] The second outlet is vertically higher than the second inlet. During daily use, a water seal is formed in the water storage pipe 603 to maintain pressure and prevent pressure leakage. By using a detachable water storage pipe 603 and placing it at the end of the drainage route, when cleaning and maintenance are required, the water storage pipe 603 can be disassembled and the collection pipe reconnected to the drain valve 602 to eliminate the water seal in the drainage route, allowing wastewater to drain smoothly and facilitating cleaning and maintenance.

[0088] Understandably, the height of the water seal determines the pressure in the drainage network 601 during drainage. Only when the air pressure inside the cabin (converted to millimeters of water column) is greater than the height of the water seal can the gas inside the cabin push open the water seal and be discharged outside the cabin through the drainage device used for the medical rescue cabin.

[0089] In some embodiments, the height of the water seal is greater than the height of the water column corresponding to the rated maximum positive pressure of the medical rescue cabin. By designing a height difference that exceeds the height of the water column corresponding to the rated maximum positive pressure, the water storage pipe 603 can generate a water seal effect that exceeds the rated maximum positive pressure, ensuring that the gas inside the cabin cannot be discharged through the drainage pipe network 601, but can only be discharged through the designed gas discharge route, which helps in the management and control of gas in the medical rescue cabin.

[0090] For example, in some embodiments, the rated maximum positive pressure of the medical rescue chamber is 300 Pa (i.e., 30 mm water column). At this time, the height of the water seal can be controlled between 5 cm and 8 cm. On the one hand, setting a safety margin of at least 2 cm can cope with pressure fluctuations that occur during use and more effectively ensure that the gas inside the chamber cannot be discharged through the drainage network 601; on the other hand, a height of no more than 8 cm can also prevent excessive wastewater from accumulating in the drainage network 601.

[0091] Reference Figure 7 In some embodiments, the second inlet and / or the second outlet are equipped with quick-release connectors. The use of quick-release connectors facilitates the installation and removal of the water storage pipe 603, helping to simplify the daily cleaning and maintenance procedures and reduce time consumption of the medical rescue cabin.

[0092] The specific form of the quick-release coupling can be selected from commonly used specifications in relevant technologies, depending on the pipeline connection method. For example, in... Figure 7In the illustrated embodiment, the second outlet is designed as a pagoda connector, which is suitable for connection with a hose-type collection pipe. Other optional specifications and suitable connection methods can be found in relevant technologies, and will not be elaborated here.

[0093] It should be noted that some related technologies use U-shaped pipes to form a water seal. Since the drain outlet of the U-shaped pipe is located at the bottom and faces vertically downwards, sufficient space needs to be left below the U-shaped pipe to connect the collection pipe and the drain outlet, which is detrimental to the structural design of the medical rescue capsule. Furthermore, after connection, the collection pipe needs to be bent to a horizontal position. If the collection pipe is rigid, the bending radius is difficult to compress, further increasing the required space. If the collection pipe is flexible, the cross-sectional area at the bend is prone to decrease, hindering the flow of wastewater.

[0094] In some embodiments, the water storage pipe 603 includes a first segment 6031, a second segment 6032, and a third segment 6033 connected in sequence. A second water inlet is located in the first segment 6031, and a second water outlet is located in the third segment 6033. The first segment 6031 and the third segment 6033 extend horizontally, with the third segment 6033 being higher than the first segment 6031. The horizontally extending first segment 6031 and third segment 6033 facilitates connection between the water storage pipe 603 and the drain valve 602, as well as between the water storage pipe 603 and an external collection pipe, making the drainage device for the medical rescue cabin more convenient to use.

[0095] In some embodiments, the height of the water storage pipe 603 monotonically increases from the second inlet to the second outlet. Monotonically increasing means that, when any two points are selected on the axis of the water storage pipe 603, the height of the point relatively farther from the second inlet is always no less than the height of the point relatively closer to the second inlet. For example, in... Figure 7 In the illustrated embodiment, the second segment 6032 extends obliquely between the first segment 6031 and the third segment 6033, thereby producing a monotonically increasing effect.

[0096] In the U-shaped pipes used in related technologies, impurities carried in wastewater often deposit and adhere near the drain outlet, making them difficult to clean. The water storage pipe 603 of this utility model adopts a monotonically increasing shape design. Compared with conventional U-shaped pipes, it allows more dirt in the wastewater to deposit near the second inlet of the water storage pipe 603, which facilitates cleaning and maintenance of the water storage pipe 603 after disassembly and reduces the residue of dirt.

[0097] Furthermore, at this point, the second inlet is the lowest point of the water storage pipe 603, and the height of the water seal is the height difference between the second inlet and the second outlet. Therefore, the water storage pipe 603 can be designed such that the height difference between the second inlet and the second outlet is greater than the water column height corresponding to the rated maximum positive pressure of the medical rescue cabin, thereby providing a suitable water seal effect. Here, the height difference can be approximately estimated by the theoretical distance between the point corresponding to the second inlet on the axis of the water storage pipe 603 and the point corresponding to the second outlet on the axis of the water storage pipe 603.

[0098] In some embodiments, the height of the drainage network 601 increases monotonically from the first outlet to the first inlet. This monotonically increasing design allows wastewater to flow naturally to the first outlet under gravity, preventing wastewater residue in the drainage network 601. Simultaneously, this ensures that the drainage module forms a water seal only at the storage pipe 603, facilitating daily use and maintenance.

[0099] 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 positive pressure airtight system for the passageway of a medical rescue cabin, characterized in that, include: The cabin includes a changing room (101), a decontamination room (102), a skin drying room (103), and a re-examination room (104) connected in sequence; A hatch (201) is provided between the connected compartments; The interlocking module includes multiple first electronic locks. The first electronic locks are provided on the door (201) between the decontamination chamber (102) and the changing room (101) and the door (201) between the decontamination chamber (102) and the drying room (103). When any one of the first electronic locks is in the unlocked state, the other first electronic locks are in the locked state. The fresh air module includes a first fresh air unit (301) for supplying fresh air to the re-examination room (104); The exhaust module includes a first exhaust valve (401) and a second exhaust valve (402); The first exhaust valve (401) connects the changing room (101) and the external environment and can be opened in response to the pressure in the changing room (101) being greater than a first positive pressure. The second exhaust valve (402) connects the re-examination room (104) and the dry skin room (103) and can be opened in response to the pressure in the re-examination room (104) being greater than a second positive pressure, where the second positive pressure is greater than the first positive pressure.

2. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 1, characterized in that, The chamber also includes a dose detection chamber (105), which is connected to the re-examination chamber (104).

3. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 2, characterized in that, The fresh air module includes a second fan for supplying fresh air to the dose detection chamber (105), and the exhaust module includes a third exhaust valve (403) that connects the dose detection chamber (105) to the external environment and can be opened in response to the pressure in the dose detection chamber (105) being greater than a third positive pressure, wherein the third positive pressure is greater than the second positive pressure.

4. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 3, characterized in that, The first positive pressure is not less than 200 Pa, and the pressure difference between the first positive pressure, the second positive pressure, and the third positive pressure is not less than 50 Pa.

5. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 2, characterized in that, The cabin also includes a first buffer room (106) and a second buffer room (107). The first buffer room (106) is connected to the changing room (101), and the second buffer room (107) is connected to the dose detection room (105). The cabin door (201) is provided between the first buffer room (106) and the external environment and between the second buffer room (107) and the external environment.

6. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 5, characterized in that, The interlock module also includes multiple second electronic locks and multiple third electronic locks. The hatch (201) between the first buffer chamber (106) and the external environment, and the hatch (201) between the first buffer chamber (106) and the changing room (101) are equipped with second electronic locks. When any one of the second electronic locks is in the unlocked state, the other second electronic locks are in the locked state. The third electronic lock is provided on the hatch (201) between the second buffer chamber (107) and the external environment and the hatch (201) between the second buffer chamber (107) and the dose detection chamber (105). When any one of the third electronic locks is in the unlocked state, the other third electronic locks are in the locked state.

7. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 2, characterized in that, It also includes a modular container (202) and a connecting channel (5), wherein the modular container (202) forms one or more of the compartments, and the multiple modular containers (202) are sequentially and sealed together through the connecting channel (5).

8. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 7, characterized in that, The connection channel (5) includes a canopy (501) and a first connection component; The canopy (501) is used to connect the two cabins (202). The canopy (501) includes a fixed end for fixing on the cabin (202) and a movable end that can extend and retract relative to the fixed end. The first connecting assembly includes a first frame (5021), a second frame (5022), and a sealing strip (5023). The first frame (5021) is disposed at the movable end, and the second frame (5022) is disposed on the container (202). The second frame (5022) forms a sealing groove for receiving the first frame (5021), and the sealing strip (5023) is disposed between the first frame (5021) and the second frame (5022).

9. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 1, characterized in that, It also includes a drainage module, which includes a drainage network (601) and a water storage pipe (603); The drainage network (601) includes a first inlet and a first outlet. The first inlet is connected to the drain outlet of the compartment. The water storage pipe (603) includes a second inlet and a second outlet. The second inlet is connected to the first outlet. The second outlet is higher than the second inlet in the vertical direction.

10. The positive pressure airtight system for the passageway of a medical rescue cabin according to claim 9, characterized in that, The water storage pipe (603) includes a first section (6031), a second section (6032), and a third section (6033) connected in sequence. The second water inlet is located in the first section (6031), and the second water outlet is located in the third section (6033). The first section (6031) and the third section (6033) extend horizontally, and the third section (6033) is higher than the first section (6031).

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