Semi-closed foldable transparent bedspread suitable for aerosol blocking

Abstract

The invention discloses a semi-closed foldable transparent bedspread suitable for aerosol blocking, and belongs to the technical field of respiratory infectious disease protection equipment. Comprising a cross rod, supporting side rods are symmetrically and fixedly connected to the outer side wall of the cross rod, vertical plates are fixedly connected to the upper surfaces of the supporting side rods, short columns are symmetrically and fixedly connected to the outer side walls of the vertical plates, inner rods are rotatably connected to the outer side walls of the short columns, and inner columns are fixedly connected to the outer side walls of the short columns; outer rods are rotationally connected to the outer side walls of the inner columns, fixing rods are fixedly connected between the two inner rods, fixing rods are fixedly connected between the two outer rods, and a foldable transparent outer cover is fixedly connected to the outer side walls of the two fixing rods and the outer side wall of the cross rod jointly.

Description

[0001] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims. Technical Field

[0002] This invention relates to respiratory infectious disease protective equipment technology, and more particularly to a semi-enclosed, foldable, transparent bed cover suitable for aerosol barrier. Background Technology

[0003] Aerosol transmission is one of the core transmission routes of respiratory infectious diseases (such as COVID-19 and influenza). In hospital wards, temporary medical observation points, and other similar settings, there is an urgent need for highly effective protective equipment to block aerosol diffusion, reducing the infection risk for medical staff, caregivers, and surrounding populations. Existing aerosol barrier bed covers generally suffer from several technical defects: First, the support structure design is unreasonable, often consisting of fixed frames or cumbersome folding mechanisms. When unfolded, these are prone to partial collapse due to patient turning over or airflow impact. When folded, they are bulky, occupying significant storage and transportation space, and lack flexibility in adapting to different bed types. Second, the sealing is insufficient; gaps easily form at the bottom where it meets the bed frame, and the operating ports lack effective sealing protection, allowing aerosols to leak through these gaps and weakening the barrier effect. Third, the ventilation and filtration systems are inefficient. Some products lack active ventilation, resulting in polluted air inside the bed cover, affecting patient breathing comfort. While some are equipped with filtration devices, the filter materials are complex to install and remove, requiring tools, leading to high maintenance costs and potential secondary pollution. Some products with strong barrier properties use opaque materials, hindering medical staff from observing patients' conditions in real time. Other transparent products are made of rigid materials, offering poor flexibility in folding and handling, making them unsuitable for clinical nursing needs. These issues prevent existing products from simultaneously achieving aerosol barrier efficiency, ease of use for medical staff, patient comfort, and scenario adaptability, thus failing to address diverse protective requirements. Therefore, developing a semi-enclosed, foldable transparent bed cover with optimized structure and synergistic functions is of significant practical importance. Summary of the Invention

[0004] Purpose of the Invention: The purpose of this invention is to provide a protective solution that can effectively block the spread of aerosols while ensuring air circulation and convenient observation and care. By constructing a semi-enclosed protective space and a highly efficient air exchange and filtration mechanism, it achieves bidirectional interception of aerosols while ensuring clean air circulation inside, meeting the needs of real-time observation and convenient nursing operations, and reducing the risk of respiratory infectious disease transmission. Another purpose of this invention is to provide a protective equipment with a stable and reliable structure, convenient storage, and strong adaptability, enabling flexible switching between rapid deployment and folding storage, adapting to different usage scenarios and bed type requirements, while simplifying daily maintenance procedures, lowering the threshold for use, and balancing practicality and economy.

[0005] Technical Solution: A semi-enclosed, foldable, transparent bed cover suitable for aerosol barrier applications, comprising a crossbar, with supporting side bars symmetrically fixedly connected to the outer side walls of the crossbar, vertical plates fixedly connected to the upper surfaces of the supporting side bars, short columns symmetrically fixedly connected to the outer side walls of the vertical plates, inner rods rotatably connected to the outer side walls of the short columns, inner columns fixedly connected to the outer side walls of the short columns, and outer rods rotatably connected to the outer side walls of the inner columns. Fixing rods are fixedly connected between the two inner rods and between the two outer rods, and a foldable transparent outer cover is fixedly connected together to the outer side walls of the two fixing rods and the outer side walls of the crossbar.

[0006] Furthermore, a groove is formed on the outer side wall of the inner rod, and spring grooves are symmetrically formed on the inner side wall of the inner rod. Springs are fixedly connected to the inner side walls of each spring groove, and rolling balls are rolled inside each spring groove. The opposite ends of the springs are in contact with the rolling balls.

[0007] Furthermore, a support plate is fixedly connected to the inner wall of the foldable transparent cover, and a ventilation fan is symmetrically fixedly connected to the inner wall of the support plate. A ventilation duct is symmetrically opened on the right side of the support plate, and the end of the ventilation duct away from the support plate is fixedly connected to a filter chamber.

[0008] Furthermore, the upper surface of the filter chamber is provided with a locking groove, and filter material is locked and connected inside the locking groove.

[0009] Furthermore, the outer wall of the foldable transparent cover is symmetrically provided with operation ports, and the inside of the operation ports is symmetrically rotatably connected with baffles. Both the foldable transparent cover and the baffles are made of transparent soft material.

[0010] Furthermore, a pressure plate is fixedly connected between the opposite sides of the support side rod, and a soft pad is fixedly connected to the upper surface of the pressure plate.

[0011] Beneficial Effects: This aerosol barrier bed cover achieves a harmonious balance between highly efficient aerosol blocking and convenient medical and nursing operations through a multi-component collaborative design, significantly improving its practicality and clinical suitability. In terms of barrier performance, the core component, a foldable transparent outer cover made of transparent soft material, forms a complete semi-enclosed space with the crossbars, inner rods, and outer rods, directly blocking the aerosol transmission path. The pressure plate and soft pad fit tightly against the edge of the bed, filling gaps and preventing bottom leakage. The transparent baffle inside the operating port hangs naturally to form a seal, can be flexibly flipped during operation, and automatically resets after operation, preventing aerosol diffusion caused by airflow exchange, forming a triple protection system of "space barrier + gap sealing + one-way protection of the operating port." In terms of air exchange and filtration, the ventilation fan provides active air exchange power, supporting intake, exhaust, and bidirectional air exchange modes. The air exchange duct concentrates airflow and guides it to the filter chamber. The high-efficiency filter material, fixed by the locking slot, can intercept aerosol particles, germs, and other harmful substances, ensuring that the air entering the bed cover is clean and the air exiting is harmless. This protects the patient's breathing comfort while preventing pollution of the external environment. Meanwhile, the transparent outer cover and protective pad allow medical staff to observe the patient's condition in real time. The operating port allows for medication administration and vital sign monitoring without opening the cover. The filter material can be quickly installed and removed via the locking slot, making maintenance convenient. This effectively solves the pain point of the conflict between barrier properties and operability in existing products, making it suitable for protection in multiple scenarios such as hospitals and homes.

[0012] This bedspread boasts the dual advantages of structural stability and reliability, as well as convenient and efficient storage. It balances safety with flexibility in adapting to different scenarios, reducing usage and maintenance costs. In terms of structural stability, the horizontal bars and supporting side bars form a rigid support base, while the vertical plates absorb the force of the folding mechanism, preventing deformation of the supporting side bars. The short columns and inner columns provide smooth rotation fulcrums for the inner and outer bars, and together with the fixing rods for lateral reinforcement, they form an anti-collapse support frame. Springs in the spring grooves push the ball joints for locking, ensuring the inner and outer bars remain stable after unfolding, even under external impact, preserving the integrity of the semi-enclosed space. Regarding convenient storage, the rotating structure of the inner bars around the short columns and the outer bars around the inner columns, combined with the soft, foldable transparent cover, allows for quick folding by simply pressing the ball joints to release the locking mechanism and flipping inwards. The folded volume is only 1 / 5 of the unfolded state, facilitating storage and transportation. The adjustable spacing of the supporting side bars adapts to different bed widths, enhancing scenario adaptability. Furthermore, the simple connection structure of each component, the good compatibility between the soft outer cover and the rigid support frame, and the resistance to damage caused by folding or handling extend its service life; the soft pad not only enhances the seal but also prevents pressure damage to the bed or patient caused by the hard material pressure plate, balancing stability and comfort. This design solves the problems of unstable support, difficult storage, and insufficient adaptability of existing products. It can be unfolded, stored, and maintained without the need for professional tools, lowering the barrier to entry and making it suitable for various medical and home protection scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a cross-sectional view of the foldable transparent outer cover of the present invention; Figure 4 This is a schematic diagram of the vertical plate of the present invention; Figure 5 This is a cross-sectional view of the inner rod of the present invention.

[0014] In the diagram: 1. Horizontal bar; 2. Supporting side bar; 3. Vertical plate; 4. Short column; 5. Inner column; 6. Outer bar; 7. Fixing bar; 8. Foldable transparent cover; 9. Groove; 10. Spring groove; 11. Spring; 12. Rolling ball; 13. Support plate; 15. Fan; 16. Air duct; 17. Filter chamber; 18. Engaging groove; 19. Filter material; 20. Operation port; 21. Baffle; 22. Pressure plate; 23. Soft pad; 24. Inner bar. Detailed Implementation

[0015] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figures 1-5As shown, a semi-enclosed foldable transparent bed cover suitable for aerosol barrier is provided, including a horizontal bar 1. Supporting side bars 2 are symmetrically fixedly connected to the outer wall of the horizontal bar 1. Vertical plates 3 are fixedly connected to the upper surface of each supporting side bar 2. Short columns 4 are symmetrically fixedly connected to the outer wall of each vertical plate 3. Inner bars 24 are rotatably connected to the outer wall of each short column 4. Inner columns 5 are fixedly connected to the outer wall of each short column 4. Outer bars 6 are rotatably connected to the outer wall of each inner column 5. Fixing rods 7 are fixedly connected between the two inner bars 24 and between the two outer bars 6. A foldable transparent outer cover 8 is fixedly connected to the outer wall of the two fixing rods 7 and the outer wall of the horizontal bar 1. A groove 9 is formed on the outer wall of the inner bar 24. Spring grooves 10 are symmetrically formed on the inner wall of the inner bar 24. Springs 11 are fixedly connected to the inner wall of each spring groove 10. All are connected to a rolling ball 12. The opposite ends of the springs 11 are in contact with the rolling ball 12. The inner wall of the foldable transparent cover 8 is fixedly connected to a support plate 13. The inner wall of the support plate 13 is symmetrically fixedly connected to a ventilation fan 15. The right side of the support plate 13 is symmetrically provided with ventilation ducts 16. The end of the ventilation ducts 16 away from the support plate 13 is fixedly connected to a filter chamber 17. The upper surface of the filter chamber 17 is provided with a locking groove 18. The inside of the locking groove 18 is connected to a filter material 19. The outer wall of the foldable transparent cover 8 is symmetrically provided with an operation port 20. The inside of the operation port 20 is symmetrically rotatably connected to a baffle 21. The foldable transparent cover 8 and the baffle 21 are both made of transparent soft material. A pressure plate 22 is fixedly connected between the opposite sides of the support side rod 2. A soft pad 23 is fixedly connected to the upper surface of the pressure plate 22. First, take out the folded bedspread. Place the crossbar 1 on both sides or at the end of the bed. Adjust the spacing of the support side bars 2 to fit the bed width. Ensure that the pressure plate 22 is aligned with the edge of the bed. Then, manually flip the inner bar 24 and outer bar 6 upwards. The inner bar rotates around the short column 4, and the outer bar rotates around the inner column 5. At this time, the ball 12 in the spring groove 10 rolls along the contact surface under the action of the spring 11. When the inner bar and outer bar are unfolded to the preset angle, the ball is inserted into the positioning groove to achieve unfolding and fixation. The fixing rod 7 simultaneously stretches the foldable transparent cover 8. The groove 9 on the outer wall of the inner bar engages the edge of the cover to prevent displacement. At the same time, the bottom edge of the foldable transparent cover is pressed tightly against the bed by the pressure plate 22. The soft pad 23 fills the gap to complete the semi-enclosed space sealing and fixation. Then, turn on the power of the ventilation fan 15. You can select the air intake, air exhaust, or bidirectional ventilation mode. When the air is intake, the outside air is filtered by the filter material 19 fixed by the locking groove 18 in the filter chamber 17 and then enters the ventilation fan through the ventilation duct 16. When the air is blown into the bed cover, any air containing aerosols inside is drawn out, filtered through the ventilation duct and filter material, and then discharged. In bidirectional ventilation mode, the intake and exhaust fans work simultaneously to maintain air pressure balance. The filter material is stably fixed by the locking groove to ensure no airflow leakage. Medical staff can insert their hands through the operating port 20. The baffle 21 will automatically reset and close after being flipped under force. The cleanliness of the filter material can be checked regularly. If replacement is needed, the old material can be directly removed from the locking groove and replaced with new material for locking. The patient's condition can be observed in real time through the transparency of the foldable transparent outer cover 8 and the baffle 21. When storing, the power of the ventilation fan is turned off, the inner rod and outer rod are rotated, and the positioning and fixing of the inner rod and outer rod are released by pressing the ball 12 to compress the spring 11. The folded outer cover will naturally fold up. The folded bed cover is easy to store or move. Throughout the process, the core functions of aerosol blocking, convenient operation and stable support are achieved through the coordinated efforts of various components.

Claims

1. A semi-enclosed, foldable, transparent bed sheet suitable for aerosol barrier, comprising a crossbar (1), characterized in that: The outer side wall of the crossbar (1) is symmetrically fixedly connected to a support side bar (2). The upper surface of the support side bar (2) is fixedly connected to a vertical plate (3). The outer side wall of the vertical plate (3) is symmetrically fixedly connected to a short column (4). The outer side wall of the short column (4) is rotatably connected to an inner rod (24). The outer side wall of the short column (4) is fixedly connected to an inner column (5). The outer side wall of the inner column (5) is rotatably connected to an outer rod (6). The two inner rods (24) and the two outer rods (6) are respectively fixedly connected to a fixing rod (7). The outer side wall of the two fixing rods (7) and the outer side wall of the crossbar (1) are jointly fixedly connected to a foldable transparent cover (8).

2. The semi-enclosed foldable transparent bedspread suitable for aerosol barrier as described in claim 1, characterized in that: A groove (9) is formed on the outer side wall of the inner rod (24). Spring grooves (10) are symmetrically formed on the inner side wall of the inner rod (24). Springs (11) are fixedly connected to the inner side wall of each spring groove (10). Rolling balls (12) are rolled inside each spring groove (10). The opposite ends of the springs (11) are in contact with the rolling balls (12).

3. A semi-enclosed, foldable, transparent bedspread suitable for aerosol barrier as described in claim 1, characterized in that: The inner wall of the foldable transparent cover (8) is fixedly connected to a support plate (13), and the inner wall of the support plate (13) is symmetrically fixedly connected to a ventilation fan (15). A ventilation duct (16) is symmetrically opened on the right side of the support plate (13), and the end of the ventilation duct (16) away from the support plate (13) is fixedly connected to a filter chamber (17).

4. A semi-enclosed, foldable, transparent bedspread suitable for aerosol barrier as described in claim 3, characterized in that: The upper surface of the filter chamber (17) is provided with a locking groove (18), and the filter material (19) is locked inside the locking groove (18).

5. A semi-enclosed, foldable, transparent bedspread suitable for aerosol barrier as described in claim 1, characterized in that: The foldable transparent cover (8) has symmetrically opened operation ports (20) on its outer side wall. The operation ports (20) are symmetrically rotatably connected to a baffle (21). Both the foldable transparent cover (8) and the baffle (21) are made of transparent soft material.

6. A semi-enclosed, foldable, transparent bedspread suitable for aerosol barrier as described in claim 1, characterized in that: A pressure plate (22) is fixedly connected between the opposite sides of the support side rod (2), and a soft pad (23) is fixedly connected to the upper surface of the pressure plate (22).

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