A portable disinfection negative pressure chamber
By incorporating a modular frame, Oxford cloth cover, and UV lamps into the portable disinfection negative pressure chamber, the problem of existing equipment being unable to provide efficient disinfection and negative pressure is solved. This enables safe and hygienic disinfection and air filtration in outdoor environments, while also improving the portability and ease of setup of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HONGSHISHAN ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-09
AI Technical Summary
Existing outdoor equipment cannot provide efficient disinfection, negative pressure systems, and portability, making it difficult to ensure hygiene and safety in outdoor environments, especially posing a risk of infection when patients are undergoing aseptic dressing changes.
A portable disinfection negative pressure chamber was designed, which adopts a modular detachable frame, Oxford cloth cover, ultraviolet lamp and air filter cloth, combined with ventilation fan and Velcro design to achieve efficient disinfection and air filtration, and has a negative pressure environment.
It provides a safe and hygienic disinfection environment, ensuring the hygiene and safety of outdoor showers and aseptic dressing changes for patients, and improving the portability and ease of setup of the equipment.
Smart Images

Figure CN224340253U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a portable disinfection negative pressure chamber, belonging to the field of outdoor equipment technology. Background Technology
[0002] Outdoor environments present significant hygiene and safety challenges, whether for routine showering and changing clothes or for aseptic dressing changes for patients. For outdoor showering and changing clothes, existing makeshift tents or open spaces are insufficient to protect against dust, insects, and germs, leading to skin infections and other health risks, and also fail to guarantee personal privacy. Regarding aseptic dressing changes for patients, traditional methods often take place in environments lacking professional sterile settings. Airborne bacteria and viruses can easily contaminate wounds, causing infections, severely impacting wound healing, and even threatening the patient's life and health.
[0003] While some mobile temporary spaces offer some protection, they also have several drawbacks: Firstly, the equipment lacks efficient disinfection capabilities, making it impossible to thoroughly sterilize the internal space and contact items. Secondly, the lack of a negative pressure system makes it difficult to effectively prevent external pollutants from entering, hindering the creation of a truly sterile environment. Furthermore, existing equipment is generally large and heavy, making it inconvenient to carry and transport, and thus difficult to meet the needs of use in complex outdoor scenarios. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a portable negative pressure sterilization room, thereby creating a safe and hygienic environment for outdoor showering and changing clothes, as well as for sterile dressing changes for patients.
[0005] A portable negative pressure disinfection chamber includes a cuboid frame assembled from multiple air columns. The frame is a modular and detachable structure. An outer cover is provided on the outside of the frame. An openable curtain is connected to one side of the outer cover. Ventilation vents are provided on the upper and lower parts of the left and right side walls of the outer cover. Breathable cloth is installed inside the ventilation vents. A window for blocking the ventilation vents is installed on the outer wall of the outer cover. An exhaust vent is provided on the side wall of the outer cover. A ventilation fan corresponding to the exhaust vent is installed on the inner wall of the outer cover.
[0006] Furthermore, the side of the window near the outer cover is provided with a Velcro hook side, and the outer wall of the outer cover is provided with a first Velcro loop side adapted to it for adhesion.
[0007] Furthermore, the bottom surface of the outer cover is provided with multiple connecting ears, which are distributed at the four corners of the bottom surface of the outer cover.
[0008] Furthermore, the upper edge of the long side of the ventilation port is provided with a second hook and loop surface, which is bonded and adapted to the hook and loop surface.
[0009] Furthermore, the frame includes multiple transverse columns, and two adjacent transverse columns are connected by longitudinal columns.
[0010] Furthermore, the transverse columns and the longitudinal columns are interconnected, and one of the transverse columns is equipped with an inflation valve.
[0011] Furthermore, an ultraviolet lamp is also installed inside the outer cover, and the ultraviolet lamp is located on the inner top wall of the outer cover.
[0012] Furthermore, the outer cover is made of Oxford cloth, and the inner wall of the outer cover is covered with aluminum foil film.
[0013] Furthermore, the breathable fabric has a storage cavity inside, and an air filter cloth is provided inside the storage cavity. The side wall of the breathable fabric has an opening that communicates with the storage cavity, and the air filter cloth is inserted into the storage cavity through the opening.
[0014] Furthermore, the curtain is connected to the outer cover via a connector, which is a zipper.
[0015] Beneficial effects:
[0016] 1. This utility model, through the combination of ventilation fan, breathable cloth and window baffle, achieves efficient exhaust of stale air and regulation of air circulation, ensuring clean indoor air; the setting of ultraviolet lamp and air filter cloth enhances disinfection and air filtration capabilities, providing a safe and hygienic environment for outdoor showering and changing clothes and for sterile dressing changes for patients.
[0017] 2. This utility model features a zipper-connected curtain that facilitates personnel entry and exit while providing good sealing; a splicable and inflatable frame design that greatly improves the portability and ease of assembly of the equipment; a Velcro design that allows for flexible installation and disassembly of the window; connecting ears that enhance the stability of the equipment outdoors; and an Oxford cloth outer cover that maintains indoor temperature and improves user comfort. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the left-side structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the right-side structure of this utility model;
[0020] Figure 3 This is a bottom view of the structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the frame structure in this utility model.
[0022] In the diagram: 1. Outer cover; 2. Curtain; 3. Frame; 31. Horizontal column; 32. Vertical column; 33. Inflation valve; 4. Breathable fabric; 5. Window baffle; 6. Hook and loop fastener; 7. First hook and loop fastener; 8. Second hook and loop fastener; 9. Ventilation fan; 10. Connecting ear. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-4 The portable negative pressure disinfection chamber includes a cuboid frame 3 assembled from multiple air columns. The frame 3 is a modular and detachable structure. An outer cover 1 is provided on the outside of the frame 3. An openable curtain 2 is connected to one side of the outer cover 1. Ventilation vents are provided on the upper and lower parts of the left and right side walls of the outer cover 1. A breathable cloth 4 is installed inside the ventilation vents. A window 5 for blocking the ventilation vents is installed on the outer wall of the outer cover 1. An exhaust vent is provided on the side wall of the outer cover 1. A ventilation fan 9 corresponding to the exhaust vent is installed on the inner wall of the outer cover 1.
[0025] Specifically, the cuboid frame 3 serves as a supporting structure, providing a stable spatial framework for the outer enclosure 1. The outer enclosure 1 covers the outside of the frame 3, forming a closed space. The curtain 2 can be opened and closed for easy access. The ventilation openings on the upper and lower parts of the left and right side walls of the outer enclosure 1, in conjunction with the breathable fabric 4, achieve preliminary air filtration and exchange; the window 5 can block the ventilation openings as needed to control airflow, drawing out indoor stale air through the exhaust vents to form air circulation and ensure the exhaust of indoor stale air.
[0026] As a technical optimization of this utility model, the side of the window 5 near the outer cover 1 is provided with a hook and loop fastener 6, and the outer wall of the outer cover 1 is provided with a first hook and loop fastener rough surface 7 that is adapted to it for bonding.
[0027] Specifically, the hook side 6 of the window 5 is bonded to the first hook side 7 of the outer wall of the outer cover 1, so that the window 5 can be easily installed and removed, thereby flexibly controlling the opening and closing of the ventilation port.
[0028] As a technical optimization of this utility model, the bottom surface of the outer cover 1 is provided with a plurality of connecting ears 10, which are distributed at the four corners of the bottom surface of the outer cover 1.
[0029] Specifically, the multiple connecting ears 10 on the bottom surface of the outer cover 1 are distributed at the four corners and can be used to connect fixing devices, such as ropes, ground stakes, etc., to securely fix the equipment to the outdoor ground.
[0030] As a technical optimization of this utility model, a second hook and loop fastener surface 8 is provided on the upper edge of the long side of the ventilation port, and the second hook and loop fastener surface 8 is bonded and adapted to the hook and loop fastener hook surface 6.
[0031] Specifically, the second Velcro surface 8 of the upper edge of the long side of the ventilation vent is attached to the Velcro hook surface 6 of the window 5, so that the window 5 can be opened.
[0032] As a technical optimization of this utility model, the frame 3 includes a plurality of transverse columns 31, and two adjacent transverse columns 31 are connected by longitudinal columns 32.
[0033] Specifically, the horizontal columns 31 are connected by the vertical columns 32 to form a stable cuboid frame structure.
[0034] As a technical optimization of this utility model, the transverse column 31 and the longitudinal column 32 are interconnected, and an inflation valve 33 is provided on one of the transverse columns 31.
[0035] Specifically, the transverse column 31 is connected to the longitudinal column 32, and the inflation valve 33 is installed on one of the transverse columns 33. The inflation valve 33 can be used to inflate the column body, causing the frame 3 to expand and form, thereby enhancing the support of the frame.
[0036] As a technical optimization of this utility model, an ultraviolet lamp is also provided inside the outer cover 1, and the ultraviolet lamp is located on the inner top wall of the outer cover 1.
[0037] Specifically, when the ultraviolet lamp on the inner top wall of the outer cover 1 is turned on, it emits ultraviolet light to irradiate the indoor space, destroying bacteria, viruses and other microorganisms, thereby achieving the purpose of sterilization and disinfection.
[0038] As a technical optimization of this utility model, the outer cover 1 is made of Oxford cloth, and the inner wall of the outer cover 1 is covered with aluminum foil film.
[0039] Specifically, the outer cover 1 is made of Oxford cloth, which utilizes the heat insulation properties of Oxford cloth to reduce heat exchange between the indoor and outdoor environments and maintain a relatively stable indoor temperature.
[0040] As a technical optimization of this utility model, the breathable cloth 4 has a storage cavity inside, and an air filter cloth is provided inside the storage cavity. The side wall of the breathable cloth 4 has an opening that communicates with the storage cavity, and the air filter cloth is inserted into the storage cavity through the opening.
[0041] Specifically, the storage cavity inside the breathable fabric 4 is used to hold the air filter cloth. The air filter cloth is inserted through the side wall opening. When air passes through the air exchange port, it first passes through the air filter cloth to remove dust, particulate matter and other impurities before entering the room.
[0042] As a technical optimization of this utility model, the curtain 2 is connected to the outer cover 1 through a connector, which is a zipper.
[0043] Specifically, the curtain 2 is connected to the outer cover 1 by a zipper, and the user can open and close the curtain 2 by pulling and closing the zipper, which is convenient to operate.
[0044] Working principle: This portable disinfection negative pressure chamber is supported by an inflatable cuboid frame 3, which consists of longitudinal columns 32 and transverse columns 31. After being inflated through the inflation valve 33, it forms a stable structure for the outer cover 1. The outer cover 1 covers the outside of the frame 3, forming a closed space. The curtain 2 on one side is opened and closed by a zipper, facilitating personnel entry and exit.
[0045] The ventilation openings on the upper and lower parts of the left and right side walls of the outer cover 1 are fitted with breathable fabric 4. The air filter cloth inside the breathable fabric 4 can initially filter the air entering the room. The baffle 5 at the ventilation opening is attached to the first hook and loop fastener 7 of the outer wall of the outer cover 1 and the second hook and loop fastener 8 of the upper edge of the long side of the ventilation opening through the hook and loop fastener 6, which can flexibly control the opening and closing of the ventilation opening. The exhaust port on the side wall of the outer cover 1 has an exhaust fan 9 installed inside. After the exhaust fan 9 is turned on, the indoor stale air is drawn out and discharged, forming an air circulation.
[0046] In addition, the ultraviolet lamp installed on the inner top wall of the outer cover 1 can disinfect the indoor space by emitting ultraviolet light; the connecting ear 11 on the bottom of the outer cover 1 can be connected to the fixing device to securely fix the equipment to the outdoor ground; the outer cover 1 is made of Oxford cloth, which can reduce the heat exchange between indoor and outdoor spaces and maintain a stable indoor temperature.
[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that any variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A portable negative pressure disinfection chamber, characterized in that: The system includes a cuboid frame (3) assembled from multiple air columns. The frame (3) is a modular and detachable structure. The frame (3) is covered with an outer cover (1). An openable curtain (2) is connected to one side of the outer cover (1). Ventilation ports are provided on the upper and lower parts of the left and right side walls of the outer cover (1). A breathable cloth (4) is installed inside the ventilation ports. A window (5) for blocking the ventilation ports is installed on the outer wall of the outer cover (1). An exhaust port is opened on the side wall of the outer cover (1). A ventilation fan (9) corresponding to the exhaust port is installed on the inner wall of the outer cover (1).
2. The portable disinfection negative pressure chamber as described in claim 1, characterized in that: The window (5) is provided with a hook and loop fastener (6) on the side near the outer cover (1), and the outer wall of the outer cover (1) is provided with a first hook and loop fastener (7) that is adapted to be bonded to it.
3. The portable disinfection negative pressure chamber as described in claim 1, characterized in that: The bottom surface of the outer cover (1) is provided with a plurality of connecting ears (10), which are distributed at the four corners of the bottom surface of the outer cover (1).
4. The portable disinfection negative pressure chamber as described in claim 2, characterized in that: The upper edge of the long side of the ventilation port is provided with a second hook and loop surface (8), which is bonded and adapted to the hook and loop surface (6).
5. The portable disinfection negative pressure chamber as described in claim 1, characterized in that: The frame (3) includes a plurality of transverse columns (31), and two adjacent transverse columns (31) are connected by longitudinal columns (32).
6. The portable disinfection negative pressure chamber as described in claim 5, characterized in that: The transverse column (31) and the longitudinal column (32) are interconnected, and an inflation valve (33) is provided on one of the transverse columns (31).
7. The portable disinfection negative pressure chamber as described in claim 1, characterized in that: An ultraviolet lamp is also provided inside the outer cover (1), and the ultraviolet lamp is located on the inner top wall of the outer cover (1).
8. The portable disinfection negative pressure chamber as described in claim 1, characterized in that: The outer cover (1) is made of Oxford cloth, and the inner wall of the outer cover (1) is covered with aluminum foil film.
9. The portable disinfection negative pressure chamber as described in claim 1, characterized in that: The breathable cloth (4) has a storage cavity inside, and an air filter cloth is provided inside the storage cavity. The side wall of the breathable cloth (4) has an opening that communicates with the storage cavity, and the air filter cloth is inserted into the storage cavity through the opening.
10. The portable disinfection negative pressure chamber as described in claim 1, characterized in that: The curtain (2) is connected to the outer cover (1) by a connector, which is a zipper.