Movable positive and negative pressure ventilation biological flexible cover cleaning room terminal

Abstract

A movable positive and negative pressure ventilation biological flexible cover cleaning room terminal, comprising a control system, is a dual-function switchable positive and negative pressure room working system, characterized in that, functionally, the reconstruction and switching of the positive and negative pressure operation system can be realized through a motor switch valve; and the positive and negative pressure double mode of the flexible cover body is realized; and intelligent management is realized through the control system. The clean room and the disinfection platform are connected through two paths of upper and lower channels; the upper channel is a hard connection device for fixing and connecting the clean room and the disinfection platform; each of the upper channel 3 and the lower channel 4 is provided with a switch valve to support two sets of positive and negative pressure operation systems; the moving wheel system is arranged at the bottom of the clean room and the disinfection platform, and the lifting system is used to cooperate with the moving wheel system and the two sets of operation systems; the upper channel can support the whole movement of the clean room and the disinfection platform.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202111390284.6, entitled "A Portable Positive / Negative Pressure Switchable Biological Cleaning Mobile House Terminal and IoT Maintenance System". Technical Field

[0002] This application pertains to cleanrooms in the field of infection control.

[0003] In the field of infection control, the "flexible hood" of this invention is in contrast to "prefab rooms" or "isolation rooms" in clean spaces. The flexible material typically used in this field includes plastic films, fiberglass films, and non-woven fabrics. A "prefab room" is a clean functional space constructed from panels or walls with a certain rigidity and strength. The "disinfection platform" is a mature product in this field; it draws in the gas to be treated through an inlet, disinfects it through the platform, and outputs clean, sterile, and safe gas. Background Technology

[0004] 1. Flexible material hood (referred to in the industry as "flexible cleanroom hood")

[0005] Medical surgeries typically require sterile cleanrooms, which are bulky, difficult to disassemble and transport, and unsuitable for use in disaster areas such as earthquakes and epidemics. Therefore, flexible, positive-pressure, movable cleanroom enclosures have emerged. While flexible enclosures are well-established in positive-pressure rooms and offer significant advantages such as portability and ease of deployment, current technology does not allow for their application in negative-pressure rooms.

[0006] The industry uses "cleanroom hoods," made of flexible materials, which are extremely convenient, but only suitable for supporting positive pressure room operation. A mobile laminar flow cleanroom hood (CN210512004U, Encosnai (Suzhou) Environmental Technology Co., Ltd.) and a cleanroom hood for ultra-gas ion flow sterilization stations (CN207422450U, Weihai Aijia Medical Equipment Co., Ltd.) are both positive pressure room technologies in the industry.

[0007] 2. Negative pressure medical cleanroom

[0008] Traditionally, negative pressure rooms in the industry are made of rigid prefabricated panels.

[0009] Rigid prefabricated houses can obviously serve as negative pressure rooms, and of course, they can also act as positive pressure rooms. However, their functionality is limited. The closest current technology to achieving dual positive and negative pressure functions in prefabricated houses requires temporary disassembly and reassembly of the piping system, which is inconvenient, and it is not a truly integrated positive and negative pressure room. Using prefabricated houses for design and implementation is inconvenient for transportation, difficult to promote, and poses many inconveniences in responding to sudden epidemics.

[0010] In short, existing cleanroom technology either has a single function, only supporting negative pressure or positive pressure rooms, or requires temporary adjustment of connecting pipelines to change the positive or negative pressure function, which is difficult to operate on-site and time-consuming.

[0011] 3. The "disinfection platform," also known as an air purification and disinfection station, is a mature product in this field. It draws in the gas to be treated through an inlet, disinfects it through the platform, and outputs clean, sterile, and safe gas. It utilizes mature technologies such as ultraviolet disinfection and plasma disinfection, which play key roles. It typically includes an outer casing containing a fan system and a purification unit. The fan system, installed inside the casing, supplies air to the purification unit. The purification unit includes, but is not limited to, numerous modules capable of generating uniform, high-concentration plasma, electrostatic modules, photocatalytic modules, and activated carbon modules. Summary of the Invention

[0012] The purpose of this application is, firstly, to solve the technical problem of flexible enclosures being unable to operate under negative pressure, and to propose the design of a flexible enclosure-based negative pressure temporary housing for widespread use in hospitals (not in the field) during major epidemics. This type of flexible negative pressure temporary housing will replace positive and negative pressure prefabricated housing, maximizing the advantages of flexible materials and offering significant and unique value in addressing situations of insufficient medical resources, particularly in the face of pandemics caused by highly contagious viruses such as influenza and coronaviruses. To this end, this application provides a portable and detachable flexible negative pressure functional housing design scheme.

[0013] Simultaneously, technical issues need to be addressed: overcoming the limitations of using functionally independent individual units. To this end, this application constructs an integrated system through logic and piping design, fundamentally resolving the shortcomings of existing technologies.

[0014] Technical solution

[0015] A portable positive and negative pressure ventilated biological clean room terminal includes a control system, which is a dual-function switchable positive and negative pressure room working system. Its features include: functionally, the ability to rebuild and switch between positive and negative pressure operation systems via a motor-driven valve switching mechanism; achieving dual positive and negative pressure modes for the flexible enclosure; and intelligent management through the control system. The positive and negative pressure ventilated biological clean room includes a portable and detachable clean room 1, a disinfection platform 2, an upper channel 3, a lower channel 4, a bottom wheel system, and a lifting system. The clean room forms a flexible clean space through its main body, the flexible enclosure. A channel is constructed between the clean room 1 and the disinfection platform, wherein: the clean room 1 and the disinfection platform 2 are connected by two channels, upper channel 3 and lower channel 4; the upper channel is a rigid connection device (example, not limitation, made of steel pipe) used to fix and connect the clean room and the disinfection platform; each of the upper channel 3 and lower channel 4 is equipped with a switching valve to support two sets of operating systems, positive pressure and negative pressure; the moving wheel system is arranged at the bottom of the clean room and the disinfection platform, and the lifting system is used to cooperate with the moving wheel system and the two sets of operating systems; the upper channel can support the overall movement of the clean room and the disinfection platform.

[0016] It consists of mobile positive and negative pressure ventilated biological clean rooms as terminals, distributed in various service units, and also includes servers to build a maintenance system. The key feature is that, in specific applications: when the server receives the operating data of each mobile clean room, after long-term accumulation, it knows the operating and service time of each module in the disinfection platform, which serves as a basis for supervision and maintenance; the pre-filter is regarded as a consumable, the plasma high-pressure module is maintained on schedule, and when a certain period is reached, the server sends an advance reminder to ensure after-sales service.

[0017] Application areas and market value:

[0018] 1. For transfer between buildings, it can enter the elevator to serve the upper and lower floors without disassembly. Before use, the negative pressure mode is run to disinfect the internal space of the enclosure to adapt to different functional requirements of positive and negative pressure.

[0019] 2. Medium to long distances, modular design, detachable and on-site assembly.

[0020] 3. The above features meet the daily dual-function switching needs and can be used for emergency resource access over medium to long distances.

[0021] It is easy to use, does not require much time or effort, and is easy to promote. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall application.

[0023] Figure 2 This is a schematic diagram of the components after being separated in this application.

[0024] Figure 3For channel 3 of this application: (a) schematic diagram; (b) unfolded schematic diagram.

[0025] Figure 4 The structure of channel 4 under this application is shown in: (a) schematic diagram; (b) unfolded schematic diagram.

[0026] Figure 5 This is a schematic diagram of the unfolded structure of channel 4 in this application.

[0027] Figure 6 Schematic diagram of positive pressure mode

[0028] Figure 7 Schematic diagram of negative pressure mode

[0029] Figure 8 This is a diagram illustrating the foldable effect of the flexible cover after it is removed.

[0030] Figure 9 Foldable flexible cover designed for zippers

[0031] Figure 10 Schematic diagram of the bottom-mounted caster system, lifting system, and flexible housing.

[0032] Figure 11 Schematic diagram of the lifting system

[0033] Figure 12 This is a schematic diagram of the control system and IoT maintenance system used in this application.

[0034] Numerical markers:

[0035] Clean room 1, disinfection platform 2, upper passage 3, lower passage 4;

[0036] Flexible cover 1-1: lower interface 11, upper interface 12;

[0037] Disinfection platform 2: Inlet 21, outlet 22;

[0038] Upper channel 3: Upper channel linear motor extension rod 31, upper channel linear motor support 32, upper channel switching door 33 connected to the upper channel linear motor extension rod, top window channel wall through hole 34; upper channel first through hole 35, upper channel second through hole 36;

[0039] Lower channel 4: Lower channel linear motor extension rod 41, lower channel linear motor support 42, lower channel switching door 43 connected to the lower channel linear motor extension rod, bottom window channel wall through hole 44; lower channel first through hole 45, lower channel second through hole 46;

[0040] Flexible sleeve 461, rubber ring 462, rigid plate 463; Detailed Implementation

[0041] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0042] The technical solutions provided in this application will be further described below with reference to specific embodiments and accompanying drawings. The advantages and features of this application will become clearer from the following description.

[0043] It should be noted that the embodiments of this application are preferred for implementation and are not intended to limit the application in any way. The technical features or combinations of technical features described in the embodiments of this application should not be considered isolated; they can be combined with each other to achieve better technical effects. The scope of the preferred embodiments of this application may also include other implementations, and this should be understood by those skilled in the art to which the embodiments of this application pertain.

[0044] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values.

[0045] The accompanying drawings in this application are all in a very simplified form and use non-precise proportions, intended only to facilitate and clarify the illustration of the embodiments of this application, and are not intended to limit the implementation of this application. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes achieved by this application, should fall within the scope of the technical content disclosed in this application. Furthermore, the same reference numerals appearing in the various drawings of this application represent the same features or components, and can be applied to different embodiments.

[0046] Basic technical solutions

[0047] A mobile positive and negative pressure ventilated biological clean room includes a control system, which is a dual-function switchable positive and negative pressure room working system. The system is characterized in that it can realize the reconstruction and switching of the positive and negative pressure operation system through the motor switching valve; and realize the positive and negative pressure dual modes of the flexible hood.

[0048] This positive and negative pressure ventilated biological cleanroom includes a portable and detachable cleanroom 1, a disinfection platform 2, an upper passage 3, a lower passage 4, a bottom caster system, and a lifting system. The cleanroom forms a flexible clean space through its main body, i.e., a flexible cover, and a passage is constructed between it and the disinfection platform.

[0049] The clean room 1 and the disinfection platform 2 are connected by two channels: an upper channel 3 and a lower channel 4. The upper channel is a rigid connection device used to fix and connect the clean room and the disinfection platform. Each channel 3 and the lower channel 4 is equipped with a switching valve to support both positive and negative pressure operating systems. The caster system is located at the bottom of the clean room and the disinfection platform, and the lifting system is used to cooperate with the caster system and the two operating systems. The upper channel can support the overall movement of the clean room and the disinfection platform.

[0050] The internal subsystems of sterilization platform 2 are not the subject of this invention. Sterilization devices are already mature products in the field, such as plasma purification sterilizers. Like the general-purpose sterilization platform 2, this invention also includes a shell, door, air duct, pre-filter module, controller, fan system, plasma high-pressure purification module, and power supply module. The door is equipped with an electromagnetic lock to ensure safe closure before operation. The pre-filter module is located at the air duct inlet and is used to filter and prevent dust and other contaminants from entering the air duct; it is a common product in the field. A flow sensor is installed inside the air duct to monitor airflow. Both the fan system and the plasma high-pressure purification module are equipped with fault switches for easy detection of whether the operating modules are functioning properly. The plasma high-pressure purification module also includes a current and voltage feedback circuit.

[0051] The above are all common and standardized technologies in this field.

[0052] Specific examples:

[0053] The disinfection platform 2 draws in the gas to be treated through the inlet 21, which is located at the bottom of the platform. After disinfection by the platform, the outlet is clean and sterile safe gas, and the outlet 22 is located at the top.

[0054] The upper channel 3 is used to connect the upper interface 12 of the flexible cover and the outlet 22 of the disinfection platform 2; the upper channel 3 is equipped with a channel switching valve mechanism implemented by a linear motor; and the upper channel 3 is provided with an upper channel first through hole 35 and an upper channel second through hole 36; the upper channel first through hole 35 is connected to the upper interface 12 of the clean room, and the upper channel second through hole 36 is connected to the outlet 22 of the disinfection platform 2; the channel switching valve mechanism includes an upper channel linear motor extension rod 31, an upper channel linear motor support 32, an upper channel switching door 33, and an upper channel reserved top window channel wall through hole 34; within the upper channel 3, the upper channel linear motor... The linear motor extension rod 31 is connected to the upper channel switching door 33. The upper channel linear motor support 32 and the upper channel switching door 33 are respectively installed on the walls of two channels in opposite positions. The extension and retraction of the upper channel linear motor extension rod 31 controls the upper channel switching door 33 to close the reserved top window channel wall through hole 34 (considered as the top window) of the upper channel 3 and open the upper channel 3, so that the upper channel 3 is connected to the upper interface 12 of the clean room to support the positive pressure mode; or the extension and retraction of the upper channel linear motor extension rod 31 controls the upper channel switching door 33 to block the upper channel 3 and open the top window channel wall through hole 34 as the discharge port to support the negative pressure mode.

[0055] Corresponding to the above design: the lower channel 4 is used to connect the lower interface 11 of the prefabricated house and the suction port 21 of the disinfection platform 2; the lower channel 4 is also equipped with a channel switching valve mechanism implemented by a linear motor; and the lower channel 4 is provided with a lower channel first through hole 45 and a lower channel second through hole 46; the lower channel second through hole 46 is connected to the lower interface 11 of the clean room, and the lower channel first through hole 45 is connected to the suction port 21 of the disinfection platform 2; the channel switching valve mechanism includes a lower channel linear motor extension rod 41, a lower channel linear motor support 42, a lower channel switching door 43, and a lower channel reserved bottom window channel wall through hole 44; within the lower channel 4, the lower channel linear motor... The extension rod 41 connects to the lower channel switching door 43. The lower channel linear motor support 42 and the lower channel switching door 43 are respectively installed on the walls of two channels in opposite positions. By extending and retracting the lower channel linear motor extension rod 41, the lower channel switching door 43 is controlled to close the bottom window channel wall through hole 44 of the lower channel 4 (considered as the bottom air vent) and open the lower channel 4, so that the lower channel 4 is connected to the lower interface 11 of the clean room to support the negative pressure mode. Alternatively, by extending and retracting the upper channel linear motor extension rod 31, the lower channel switching door 43 is controlled to block the lower channel 4 and open the reserved bottom window channel wall through hole 44 (considered as the bottom air vent) as a natural air intake to support the positive pressure mode.

[0056] The clean room 1:

[0057] Existing flexible cleanrooms, i.e., flexible enclosures, can only function as positive pressure rooms and cannot achieve negative pressure rooms. This invention is the first to achieve dual functionality. When a function needs to be changed, the piping and inlets / outlets must be manually adjusted to create positive or negative pressure within the cleanroom after operation, which is inconvenient and labor-intensive. Therefore, this application's positive and negative pressure room uses a linear motor to combine channel paths according to functional requirements to support different operating modes.

[0058] The clean room 1 is a portable and detachable clean room, including a flexible cover (1-1), an air box (7), and a support body (1-3); the flexible cover (1-1) is made of flexible material; the air box (7) is installed on the support body composed of four pillars; the flexible cover is attached to the support body, and the flexible cover, air box, and support body together form a three-dimensional space. The air box is provided with an upper interface 12, the flexible cover is provided with a lower interface 11, and a third air vent 13 is provided on the other side.

[0059] Flexible covers, by way of example and not limitation, can be made of soft plastic, allowing them to be folded, such as... Figure 8 As shown; when opened, it can form a three-dimensional space. In this application, the flexible material, in this field, is relative to boards such as wood and glass. Plastic films, fiberglass films, and non-woven fabrics are commonly used as flexible materials, and their strength and toughness can be selected according to application needs and cost tolerance. As an example, and not a limitation, the support can be composed of four columns.

[0060] Furthermore, the lower interface 11 of the cleanroom can be connected using a flexible sleeve 461 extension design to connect the cleanroom and the second through hole 46 of the lower channel of the disinfection platform: the outer end of the flexible sleeve 461 is provided with a plastic rubber ring 462, and the rubber ring 462 has a groove structure; the second through hole 46 of the lower channel is provided with a rigid plate 463, and the rigid plate 463 forms a hole that matches the size and shape of the rubber ring 462, and the plastic rigid plate 463 of the rubber ring 462 is embedded in the groove structure of the rubber ring 462; the flexible sleeve 461 can be made of the same material as the cleanroom; in this way, the connection between the rigid second through hole 46 of the lower channel and the flexible cleanroom is realized, and the connection operation is convenient during engineering installation, and it is also extremely adaptable to and protects the special characteristics of the cleanroom and the disinfection platform when they are moved as a whole.

[0061] For example, in this embodiment, the surfaces of the flexible cover three-dimensional space are flexibly connected by zippers, and the bottom of the three-dimensional space and the bottom frame (1-4) are connected by Velcro. More specifically, and not limited to, one side of the Velcro can be installed on the bottom edge of the flexible cover and the other side can be installed on the upper surface of the frame. Through the magnetic attraction of the Velcro, a seamless flexible connection is formed between the bottom of the flexible cover and the upper surface of the bottom frame.

[0062] Using a zipper can also create a temporary entrance / exit.

[0063] The bottom frame is fitted with foam material (or a 1cm sponge strip) and placed on the ground; or, the bottom flexible body (1-2-2) of the flexible cover is made of cloth strip material, wrapped around the bottom frame and in contact with the ground; the bottom frame is seamlessly connected to the ground through the cloth strip.

[0064] The flexible enclosure is designed as a three-dimensional enclosure formed by a top surface and circumference. The top surface of the flexible enclosure is served by an air box. As an example, and not a limitation, it is used to cover the outside of a rigid frame composed of the air box and the support, and is fitted from top to bottom; when not in use, it is removed from bottom to top. Alternatively, multiple surfaces of the three-dimensional space of the flexible enclosure can be fixed to the support and then merged by a longitudinal movable connecting device.

[0065] Bottom-mounted caster system and lifting system:

[0066] This invention relates to a portable, detachable air sterilizer with a movable cleanroom cover. Wheels (6-1) are installed at the bottom of the support frame and wheels (6-2) at the bottom of the sterilization platform, facilitating emergency relocation within hospitals or temporary medical facilities. Figure 10 , Figure 11 As shown.

[0067] Meanwhile, for ease of use and disassembly, a bridging device (1-5) is installed between the main body of the support (1-3) and the bottom frame (1-4). During movement, the bottom frame is raised off the ground using the bridging device, and then fixed to the main body of the support (1-3) using the same device. This allows the wheels to be pushed to the new location or department for use. Upon reaching the desired location, the bottom frame is lowered to the ground using the bridging device, and simultaneously, the wheels (6-2) are locked in place by the bridging device and the support body, ensuring stability and reliability during use.

[0068] The bridging device (1-5) structure includes two connecting rods (1-5-1) and a screw nut (1-5-2). Both connecting rods have pre-drilled vertical elongated holes. One rod is used to connect to the main body of the support (1-3), and the other rod is used to connect to the bottom frame (1-4). The screw nut passes through the two vertical elongated holes and is tightened for temporary fixation or limiting.

[0069] The bottom frame (1-4) structure is implemented as a single casting; or it includes a long strip (1-4-1) and a corner strip (1-4-2), which are connected by a connecting piece (1-4-3). If necessary, the bottom frame (1-4) structure can also be equipped with a counterweight (not shown in the figure) to apply pressure to the long strip (1-4-1) when the bridging device (1-5) structure is lowered and contacts the ground, so as to cope with the stability of the operation in negative pressure mode.

[0070] Control system:

[0071] The control system includes a controller and a human-machine interface. The controller output is connected to the electrical drive of the disinfection platform system and the two linear motor drives in the upper and lower channels. The human-machine interface output is connected to the controller input.

[0072] Step 1: Set the operating mode, time, preset parameters, etc. through the human-machine interface. In this way, the controller will synchronously output positive or negative pressure command signals to drive the linear motors in the upper and lower channels to realize the switching of the positive and negative pressure operation system and prepare for system construction.

[0073] Step 2: The controller outputs the electrical drive of the disinfection platform system to start, so as to run the corresponding mode; after the operation is completed, the controller outputs the electrical drive of the disinfection platform system to stop, and at the same time, the controller, as the terminal, uploads the disinfection platform operation data to the server through the communication module, and finally controls the linear motor drive to adjust each channel to the initialization state.

[0074] Step 3: The system waits for the human-machine interface to receive new instructions.

[0075] As an application, control systems such as Figure 12 .

[0076] Figure 12 As shown, the controller outputs the electrical drive to start the disinfection platform system, in order to run the corresponding mode. The operation flow of the disinfection platform is as follows:

[0077] Step 21: Check the switch and alarm signals to troubleshoot the problem.

[0078] Step 211: Check the electromagnetic door lock switch, plasma high voltage fault switch, and fan fault switch. If there is a fault, issue an alarm signal, illuminate the red light, and shut down the machine to the initial state; otherwise, proceed to step 212.

[0079] Step 212 further checks the pressure at the pre-filter. If it is normal, proceed to step 23; otherwise, an alarm signal is issued, a yellow light illuminates, and the display screen shows the air duct blockage. After personnel are alerted and the problem is resolved, proceed to step 23.

[0080] Step 23: The fan starts working, and the plasma high-voltage module applies voltage from 2V and runs continuously, while simultaneously monitoring and feeding back voltage, current, and flow rate.

[0081] Step 231: Read the airflow sensor value and set the difference between this sensor value and the set value as Δ, and set the ratio between the difference and the set value as f; if f ≥ 40% and the duration exceeds 240s, or f < 40% and the duration exceeds 360s, an alarm signal is issued, the red light illuminates, and the machine stops to the initial state; if f < 40% but the duration does not exceed 240s, an alarm signal is issued, the yellow light illuminates, and the machine waits for the unstable state to readjust; then it continues to run.

[0082] Step 232: If the high voltage is ≤3KV or the current is ≤160uA or ≥1800uA, and the duration exceeds 240s, an alarm signal is issued, the red light illuminates, and the machine stops to the initial state; if 3KV < high voltage < 5KV, or 160uA < current < 500uA, and the duration exceeds 240s, an alarm signal is issued, the yellow light illuminates, and the machine waits for the unstable state to readjust; otherwise, the high voltage is stabilized to >5KV, and the current is 500uA < 1800uA, and the machine continues to operate.

[0083] Step 24: The entire machine countdown begins. The communication module in the controller periodically reports the operating data of each of the aforementioned modules to the server. As an application, when the server receives the operating data of each mobile cleanroom, the accumulated data over time allows it to determine the operating and service time of each module in the disinfection platform, serving as a basis for monitoring and maintenance. The pre-filter can be considered a consumable. To ensure the sterilization effect and energy efficiency of the disinfection platform, the plasma high-pressure module also requires periodic maintenance.

[0084] The core components of the flexible cover, namely the flexible three-dimensional space, the flexible connecting device (1-2-1), and the bottom frame (3-2), form a medical positive and negative pressure dual-function space.

[0085] In practical applications, the disinfection platform is supported by steps 21 and 23:

[0086] In positive pressure mode, such as Figure 7 As shown:

[0087] The bottom frame (1-4) is lifted and fixed using bridging devices (1-5), creating a gap with the ground. The control system coordinates the upper and lower channels to prepare for positive pressure mode. Specifically, the reserved bottom window channel wall opening 44 (considered a bottom air vent) of the lower channel 4 introduces natural air from the outside (simultaneously cutting off the lower channel 4, i.e., disconnecting the connection between the lower channel 4 and the lower interface 11 of the cleanroom). Natural air enters the disinfection platform inlet and is disinfected within the disinfection platform 2. From its outlet, through the unobstructed upper channel 3 and the upper interface 12 of the cleanroom, clean, sterile, and safe gas is poured into the space from the top of the cleanroom through an air box, creating a positive pressure environment. Under positive pressure, a portion of the gas exits the cleanroom through the third vent 13 of the prefabricated building, while most exits through the gap between the bottom of the flexible cover and the ground. This is the positive pressure mode. A positive pressure medical functional room is formed on-site to protect the frail or those requiring surgery.

[0088] Or in negative pressure mode, such as Figure 7 As shown:

[0089] The flexible enclosure forms a sealed three-dimensional space through the flexible connecting device (1-2-1). At the same time, the bottom frame (1-4) is lowered and fixed through the bridging device (1-5), making it in close contact with the ground. If necessary, a counterweight (not shown in the figure) can be added at the long strip (1-4-1) to ensure the stability of the bottom frame (1-4) and the ground during operation in negative pressure mode. Simultaneously, the control system coordinates the upper and lower channels to prepare for negative pressure mode. Specifically: the flexible enclosure has a third vent 13; the reserved bottom window channel wall opening 44 (considered a bottom air vent) of the lower channel 4 is closed, while the lower channel 4 is opened, connecting it to the lower interface 11 of the cleanroom; under negative pressure, natural air enters from the third vent 13 of the cleanroom, passes through the lower interface 11, the unobstructed lower channel 4, and the disinfection platform suction inlet 21. The air in the cleanroom to be disinfected enters the disinfection platform suction inlet 21 and is disinfected within the disinfection platform 2. It then enters the upper channel 3 from the disinfection platform outlet and is discharged to the outside through the reserved top window channel wall opening 34 (considered a top window) of the upper channel 3; this is the positive pressure mode. A negative pressure medical functional room is thus formed on-site for isolating infectious patients or suspected patients.

[0090] In positive pressure mode, it can be used as a ward for non-infectious, immunocompromised patients or mothers and infants requiring special isolation and protection. In positive pressure mode, it is considered a clean ward. It provides safe and clean air to the entire ward space, creating a top-down airflow that establishes positive pressure inside the ward relative to the outside, thus protecting patients. It has significant and unique value in situations involving pandemics of highly contagious viruses such as influenza and coronaviruses, and in addressing shortages of medical resources.

[0091] In negative pressure mode, the functional room is considered an isolation ward. It provides fresh natural air to the entire ward space, creating negative pressure relative to the outside, forming a stable airflow, which is then disinfected before being discharged, protecting the environment. For example, in the current COVID-19 pandemic, patients and suspected patients require management, monitoring, and treatment. In emergency situations, the rapid provision and clearing of negative pressure rooms is particularly important and crucial. COVID-19 patients / suspected patients are placed in negative pressure rooms, and medical equipment is used for timely treatment and care.

[0092] The ease of constructing a flexible negative pressure functional room with a cover makes it very easy to promote.

[0093] The above description is merely a description of preferred embodiments of this application and is not intended to limit the scope of this application in any way. Any changes or modifications made by those skilled in the art based on the above-disclosed technical content should be considered as equivalent and valid embodiments and fall within the scope of protection of the technical solution of this application.

Claims

1. A mobile positive and negative pressure ventilated bio-flexible hood cleaning room terminal, including a control system, is a dual-function switchable positive and negative pressure room working system, characterized in that, functionally, the positive and negative pressure operation system can be rebuilt and switched through the valve switching of the motor; and the positive and negative pressure dual modes of the flexible hood (1-1) can be realized; and intelligent management can be realized through the control system; The portable positive and negative pressure ventilated bio-flexible hood cleanroom includes a portable and detachable cleanroom (1), a disinfection platform (2), an upper channel (3), a lower channel (4), a bottom wheel system, and a lifting system. The cleanroom (1) forms a flexible clean space through its main body, namely the flexible hood (1-1), and constructs a channel with the disinfection platform (2), wherein: The clean room (1) and the disinfection platform (2) are connected by an upper channel (3) and a lower channel (4); the upper channel (3) is a rigid connection device used to fix and connect the clean room (1) and the disinfection platform (2); each of the upper channel (3) and the lower channel (4) is equipped with a switching valve to support two sets of positive pressure / negative pressure operating systems; the moving wheel system is arranged at the bottom of the clean room (1) and the disinfection platform (2), and the lifting system is used to cooperate with the moving wheel system and the two sets of operating systems; the upper channel (3) can support the overall movement of the clean room (1) and the disinfection platform (2); The upper channel (3) is used to connect the upper interface (12) of the flexible cover (1-1) and the outlet (22) of the disinfection platform (2); the upper channel (3) is provided with a channel switching valve mechanism implemented by a linear motor; and the upper channel (3) is provided with an upper channel first through hole (35) and an upper channel second through hole (36); the upper channel first through hole (35) is connected to the upper interface (12) of the clean room (1), and the upper channel second through hole (36) is connected to the outlet (22) of the disinfection platform (2); the channel switching valve mechanism includes an upper channel linear motor extension rod (31), an upper channel linear motor support (32), an upper channel switching door (33), and a reserved top window channel wall through hole (34) in the upper channel (3); in the upper channel ( 3) Inside, the upper channel linear motor extension rod (31) is connected to the upper channel switching door (33). The upper channel linear motor support (32) and the upper channel switching door (33) are respectively installed on the two channel pipe walls in opposite positions. By extending and retracting the upper channel linear motor extension rod (31), the upper channel switching door (33) is closed to close the reserved top window channel wall through hole (34) of the upper channel (3), thus opening the upper channel (3) and connecting the upper channel (3) with the upper interface (12) of the clean room (1) to support the positive pressure mode. Alternatively, by extending and retracting the upper channel linear motor extension rod (31), the upper channel switching door (33) is blocked to open the top window channel wall through hole (34) as the outlet (22) to support the negative pressure mode. The lower channel (4) is used to connect the lower interface (11) of the clean room (1) and the suction port (21) of the disinfection platform (2); the lower channel (4) is also equipped with a channel switching valve mechanism implemented by a linear motor; and the lower channel (4) is equipped with a lower channel first through hole (45) and a lower channel second through hole (46); the lower channel second through hole (46) is connected to the lower interface (11) of the clean room (1), and the lower channel first through hole (45) is connected to the suction port (21) of the disinfection platform (2); the channel switching valve mechanism includes a lower channel linear motor extension rod (41), a lower channel linear motor support (42), a lower channel switching door (43), and a bottom window channel wall through hole (44) reserved in the lower channel (4); in the lower channel (4) Inside, the lower channel linear motor extension rod (41) is connected to the lower channel switching door (43). The lower channel linear motor support (42) and the lower channel switching door (43) are respectively installed on the two channel pipe walls in opposite positions. By extending and retracting the lower channel linear motor extension rod (41), the lower channel switching door (43) is closed to close the bottom window channel wall through hole (44) of the lower channel (4), thus opening the lower channel (4) and connecting the lower channel (4) with the lower interface (11) of the clean room (1) to support the negative pressure mode. Alternatively, by extending and retracting the lower channel linear motor extension rod (41), the lower channel switching door (43) is blocked to close the lower channel (4), thus opening the reserved bottom window channel wall through hole (44) as a natural air intake to support the positive pressure mode. The clean room (1) is a portable and detachable clean room (1), including a flexible cover (1-1), an air box (7), and a support body (1-3); the flexible cover (1-1) is made of flexible material; the air box (7) is installed on the support body (1-3) which is composed of four pillars; the flexible cover (1-1) is attached to the support body (1-3), and the flexible cover (1-1), the air box (7), and the support body (1-3) together form a three-dimensional space. The air box (7) is provided with an upper interface (12), and the flexible cover (1-1) is provided with a lower interface (11) below it. At the same time, a third air vent (13) is provided on the other side. The controller outputs the electrical drive to start the disinfection platform system, thus initiating the corresponding mode of operation. The disinfection platform's operation process is as follows: Step 21: Check the switch and alarm signals to troubleshoot the fault; Step 211: Check the electromagnetic door lock switch, plasma high voltage fault switch, and fan fault switch. If there is a fault, issue an alarm signal, illuminate the red light, and shut down the machine to the initial state; otherwise, proceed to step 212. Step 212 further checks the pressure at the pre-filter. If it is normal, proceed to step 23; otherwise, an alarm signal is issued, a yellow light illuminates, and the display screen shows the air duct blockage. After personnel are alerted and the problem is resolved, proceed to step 23. Step 23: The fan starts working, and the plasma high-voltage module applies voltage from 2V and runs continuously, while simultaneously monitoring and feeding back voltage, current, and flow rate. Step 231: Read the airflow sensor value and set the difference between this sensor value and the set value as Δ, and set the ratio between the difference and the set value as f; if f ≥ 40% and the duration exceeds 240s, or f < 40% and the duration exceeds 360s, an alarm signal is issued, the red light illuminates, and the machine stops to the initial state; if f < 40% but the duration does not exceed 240s, an alarm signal is issued, the yellow light illuminates, and the machine waits for the unstable state to readjust; then it continues to run. Step 232: If the high voltage is ≤3KV or the current is ≤160uA or ≥1800uA, and the duration exceeds 240s, an alarm signal is issued, the red light illuminates, and the machine stops to the initial state; if 3KV < high voltage < 5KV, or 160uA < current < 500uA, and the duration exceeds 240s, an alarm signal is issued, the yellow light illuminates, and the machine waits for the unstable state to readjust; otherwise, the high voltage is stabilized to >5KV, and the current is 500uA < 1800uA, and the machine continues to operate. Step 24: The entire machine countdown begins, and the communication module in the controller periodically reports operating data to the server; The core components of the flexible cover, namely: the flexible three-dimensional space, the flexible connecting device (1-2-1), and the bottom frame (1-4), form a medical positive and negative pressure dual-function space; In practical applications, the disinfection platform is supported by steps 21 and 23: The bottom frame (1-4) is lifted and fixed by bridging device (1-5) to form a certain gap with the ground; the upper and lower channels are coordinated by the control system to enter the positive pressure mode preparation, that is: the bottom window channel wall through hole (44) of the lower channel (4) introduces natural air from the outside, the natural air enters the disinfection platform entrance and completes disinfection in the disinfection platform (2), and from its outlet through the unobstructed upper channel (3) and the upper interface (12) of the clean room, clean and sterile safe gas is poured into the space from the top of the clean room through the air box to form a positive pressure environment. Under positive pressure, a part of the gas is discharged from the clean room from the third vent (13) of the panel house, and most of it is discharged from the gap formed between the bottom of the flexible cover and the ground; this is the positive pressure mode; a positive pressure medical functional room is formed on the spot to protect the weak or those who need to undergo surgery; Alternatively, in negative pressure mode, the flexible enclosure forms a sealed three-dimensional space through the flexible connecting device (1-2-1); at the same time, the bottom frame (1-4) is lowered and fixed through the bridging device (1-5) to make close contact with the ground; a counterweight is added at the long strip (1-4-1) to ensure the stability of the bottom frame (1-4) and the ground during operation in negative pressure mode; at the same time, the upper and lower channels are coordinated by the control system to prepare for negative pressure mode, that is: the three-dimensional space of the flexible enclosure has a third vent (13); the bottom window channel wall through hole (44) of the lower channel (4) is Close and open the lower channel (4) at the same time, that is, connect the lower channel (4) with the lower interface (11) of the clean room; under negative pressure, natural air enters from the third vent (13) of the clean room, passes through the lower interface (11) of the clean room, the unobstructed lower channel (4), and the disinfection platform inlet (21), the gas in the clean room to be disinfected enters the disinfection platform inlet (21) and is disinfected in the disinfection platform (2), enters the upper channel (3) from the outlet of the disinfection platform, and is discharged to the outside through the top window channel wall through hole (34) of the upper channel (3).

2. The mobile positive and negative pressure ventilated bio-flexible hood cleaning room terminal as described in claim 1, characterized in that, Furthermore, the lower interface (11) of the clean room (1) adopts a flexible sleeve (461) extension design for connection, which is used to connect the clean room (1) and the second through hole (46) of the lower channel of the disinfection platform (2): the outer end of the flexible sleeve (461) is provided with a plastic rubber ring (462), and the rubber ring (462) is provided with a groove structure; the second through hole (46) is provided with a rigid plate (463), and the rigid plate (463) forms a hole that matches the size and shape of the rubber ring (462), and the plastic rigid plate (463) of the rubber ring (462) is embedded in the groove structure of the rubber ring (462); the flexible sleeve (461) is made of the same material as the clean room (1); in this way, the connection between the rigid lower channel second through hole (46) and the flexible clean room (1) is realized, and the connection operation is convenient during engineering installation, and it is also extremely adaptable to and protects the special characteristics of the clean room (1) and the disinfection platform (2) when they move as a whole.

3. The mobile positive and negative pressure ventilated bio-flexible hood cleaning room terminal as described in claim 1, characterized in that, The bottom features a wheel system and a lifting system. A support wheel (6-1) is installed at the bottom of the support, and a platform wheel (6-2) is also installed at the bottom of the disinfection platform (2). The bridging device (1-5) structure includes two connecting rods (1-5-1) and a screw nut (1-5-2). Both connecting rods have pre-drilled vertical elongated holes. One rod is used to connect to the main body of the support (1-3), and the other rod is used to connect to the bottom frame (1-4). The screw nut passes through the two vertical elongated holes and is tightened for temporary fixation or limiting. The bottom frame (1-4) structure is realized as follows: a single casting; or it includes a long strip (1-4-1) and a corner strip (1-4-2), which are connected by a connecting piece (1-4-3).

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