A type of anti-slip negative pressure blanket
By installing drainage units and a negative pressure valve system on the anti-slip negative pressure blanket, the problem of low drainage efficiency is solved, achieving rapid drainage and enhanced anti-slip effect, thus reducing the risk of falls.
Patent Information
- Application Number
- CN202522682249.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-17
AI Technical Summary
Existing anti-slip negative pressure blankets have poor drainage, resulting in water accumulation on the surface, which in turn affects their anti-slip effect.
A drainage unit is installed on the carpet, including a drainage area, a connecting platform, anti-slip columns, and drainage holes. Combined with a negative pressure valve system, the drainage slope and bevel design promote the rapid discharge of accumulated water.
It improves the drainage efficiency of the blanket, reduces surface water accumulation, enhances the anti-slip effect, and reduces the risk of falling.
Smart Images

Figure CN224936855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-slip products technology, and in particular to an anti-slip negative pressure blanket. Background Technology
[0002] In medical surgical settings, the surgical procedure often requires continuous irrigation of the surgical area with saline solution and disinfectant, which also results in the seepage of bodily fluids such as blood and tissue fluid. These fluids easily accumulate in the area around the operating table. When medical staff operate in waterlogged areas while wearing surgical shoes, the slippery soles not only affect the precision of their surgical movements but also pose a risk of falls and dropped instruments. More importantly, pathogens carried in the water can cause occupational exposure for medical staff and increase the probability of postoperative wound infections for patients. Furthermore, long-term seepage of water can corrode floor materials, significantly increasing the maintenance and upkeep costs of the operating room. In public restrooms and nursing homes, water accumulation is a major cause of slips and falls, especially for elderly people with limited mobility in nursing homes. Slipping in water can easily lead to serious injuries such as fractures. In industrial workshops, water accumulation can affect the safety of workstations and may even cause production accidents such as short circuits.
[0003] Existing patent CN202023255153.0 discloses a negative pressure absorbent blanket, including an absorbent blanket body, a sponge water storage layer at the bottom of the absorbent blanket body, an anti-slip layer at the bottom of the sponge water storage layer, and a negative pressure connecting pipe extending from the sponge water storage layer. The sponge water storage layer contains several absorbent trays communicating with the negative pressure connecting pipes. This invention's negative pressure absorbent blanket body has strong water absorption capacity and can work with negative pressure pipelines to remove leaks, thereby providing a good surgical environment. It can protect medical staff from occupational exposure, reduce the chance of postoperative infection for patients, and prevent water seepage into the floor, saving operating room maintenance costs and changing unsafe factors in the operating room. The aforementioned patented negative pressure absorbent blanket absorbs water through the sponge water storage layer and then drains the water from the sponge water storage layer through the negative pressure absorbent trays. When the amount of water on the blanket surface is large, the water cannot be drained in time, resulting in poor drainage efficiency and poor anti-slip effect. Utility Model Content
[0004] The purpose of this invention is to provide an anti-slip negative pressure blanket that solves the problems of poor drainage and poor anti-slip effect on the upper surface caused by water accumulation in existing anti-slip negative pressure blankets.
[0005] To achieve the above objectives, this utility model provides an anti-slip negative pressure blanket, comprising a blanket body, with a plurality of drainage units evenly arranged on the upper surface of the blanket body, each drainage unit comprising a drainage area, and a connecting platform provided between adjacent drainage areas, the height of the connecting platform being not less than the height of the drainage area, a plurality of anti-slip posts evenly arranged on the upper surface of the drainage area, and at least one drainage hole penetrating the blanket body provided on the drainage area; the drainage area includes a plurality of drainage slopes, the side of the drainage slopes being tangent to the drainage hole.
[0006] Preferably, the upper surface of the drainage slope is a slope that gradually slopes downward from the edge of the blanket toward the drainage hole.
[0007] Preferably, the anti-slip column is a cylindrical structure with a chamfer at the top and arranged in a linear array on the upper surface of the drainage area.
[0008] Preferably, the height of the anti-slip post is 1mm-10mm.
[0009] Preferably, a water collection trough is provided around the drain hole, the height of the water collection trough is lower than the height of the drainage area, and the water collection trough is connected to the drain hole.
[0010] Preferably, a negative pressure valve is provided at the bottom of the drain hole to discharge the water in the drain hole.
[0011] Preferably, the bottom of the blanket is provided with a connecting groove, the two ends of which extend to the edge of the blanket. The connecting groove is connected to the drain hole through a connecting groove to drain water from the blanket.
[0012] Preferably, the edge of the blanket is provided with a bevel that gradually slopes outward from the upper surface to the bottom surface of the blanket.
[0013] Preferably, the outer surface of the anti-slip post is provided with a hydrophobic coating.
[0014] Preferably, the upper surface of the drainage area is provided with a non-woven fabric layer.
[0015] The advantages and positive effects of the anti-slip negative pressure blanket described in this utility model are as follows: A drainage hole is provided in the middle of the drainage area, and a negative pressure valve is installed at the drainage hole. The negative pressure valve discharges water from the bottom of the blanket through a connecting groove and a communicating groove, improving the drainage efficiency of the blanket, reducing water residue, and enhancing the anti-slip effect. The drainage area includes several drainage slopes, which guide the water accumulated on the blanket surface towards the drainage hole, facilitating the drainage of water from the upper surface of the blanket. The sides of the drainage slopes are tangent to the drainage hole, creating vortices as water flows on the upper surface of the drainage area, further promoting water drainage through the drainage hole.
[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model; Figure 2 This is a top view of Embodiment 1 of the present invention. Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of the present invention; Figure 4 For the appendix Figure 1 Enlarged view of A in the middle; Figure 5 This is a partial cross-sectional structural diagram of Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the bottom structure of Embodiment 1 of this utility model.
[0018] Figure Labels 1. Blanket body; 2. Drainage area; 3. Connecting platform; 4. Anti-slip column; 5. Bevel; 6. Drainage hole; 7. Water collection trough; 8. Connecting groove; 9. Connecting groove; 10. Drainage slope. Detailed Implementation
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.
[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0022] like Figures 1-6 As shown, an anti-slip negative pressure blanket includes a blanket body 1, which has a cuboid structure. Several drainage units are evenly distributed on the upper surface of the blanket body 1; in this embodiment, two drainage units are provided. Multiple drainage units can be arranged side-by-side depending on the size of the blanket body 1. Each drainage unit includes a drainage area 2, and a connecting platform 3 is provided between adjacent drainage areas 2. The height of the connecting platform 3 is not lower than the height of the drainage area 2, and the connecting platform guides water to both sides to prevent water residue on the connecting platform. The two ends of the connecting platform 3 extend to the edges of the blanket body 1.
[0023] At least one drainage hole 6 penetrating the blanket 1 is provided on the drainage area 2. The drainage hole 6 introduces water from the upper surface of the drainage area 2 into the lower surface of the blanket 1. A negative pressure valve is provided at the bottom of the drainage hole 6 to discharge the water inside the drainage hole 6. The negative pressure valve adopts an existing structure, with its port connected to the bottom end of the drainage hole 6, discharging the water inside the drainage hole 6 from the top to the bottom of the blanket 1 under negative pressure. A connecting groove 8 is provided at the bottom of the blanket 1, with both ends extending to the edge of the blanket 1. The connecting groove 8 is connected to the drainage hole 6 through a connecting groove 9. The connecting groove 8 and the connecting groove 9 are used to house a negative pressure pipe, which is connected to the negative pressure valve to facilitate water discharge through the negative pressure pipe. The water drawn in by the negative pressure valve is discharged from the blanket 1 through the connecting groove 9 and the connecting groove 8.
[0024] A water collection trough 7, which is circular, is provided around the drain hole 6. The height of the water collection trough 7 is lower than the height of the drainage channel, and the water collection trough 7 is connected to the drain hole 6. The water collection trough 7 is used to collect water accumulated on the surface of the blanket 1 in the middle, so that the water is discharged from the bottom of the blanket 1 through the drain hole 6 and the negative pressure valve. This reduces the drainage pressure of the connecting platform 3, improves the drainage efficiency of the blanket 1, reduces water accumulation on the upper surface of the blanket 1, and improves the anti-slip effect.
[0025] The drainage zone 2 includes several drainage ramps 10, the sides of which are tangent to the drainage holes 6. The upper surface of each drainage ramp 10 slopes downwards from the edge of the blanket 1 towards the drainage holes 6. The drainage holes 6 are not located in the center of the drainage zone 2. Four drainage ramps 10 are provided, and the bottoms of all four ramps 10 are connected to the water collection tank 7, guiding water into the tank. Because the four drainage ramps 10 are located on the tangent of the drainage holes 6, vortices are generated when water flows on the ramps 10, promoting water flow on the upper surface of the drainage zone 2, reducing water residue on the surface of the drainage zone 2, and improving drainage and anti-slip effects.
[0026] The upper surface of drainage area 2 is evenly dotted with several anti-slip posts 4. Each anti-slip post 4 has a cylindrical structure with a chamfered top edge, avoiding sharp edges and providing good protection. Both the anti-slip posts 4 and the blanket 1 are made of flexible foam material and can be integrally molded using injection molding or other methods. The anti-slip posts 4 are arranged in a linear array on the upper surface of drainage area 2. This linear array creates interconnected low-lying areas on the surface of drainage area 2, facilitating water flow and reducing water residue on the blanket 1 surface. The height of the anti-slip posts 4 ranges from 1mm to 10mm, improving standing comfort.
[0027] The edge of the blanket 1 is provided with a beveled edge 5 that gradually slopes outward from the top surface to the bottom surface of the blanket 1. The beveled edge 5 facilitates the drainage of water from the edge of the blanket 1, reduces water accumulation on the top surface of the blanket 1, and improves the anti-slip effect.
[0028] Example 2 This embodiment, based on Embodiment 1, adds a hydrophobic coating to the outer surface of the anti-slip column 4 to promote water flow. A non-woven fabric layer is provided on the upper surface of the drainage area 2 to reduce water splashing. The hydrophobic coating is a long-chain silane / siloxane self-assembled monolayer (SAM). The methoxy or ethoxy group at one end of the silane coupling agent reacts chemically with the silanol groups on the silica gel surface to form a strong Si-O-Si covalent bond; the alkyl long chains at the other end are arranged outwards, providing hydrophobicity, thus forming an extremely thin hydrophobic film at the molecular level. Improving the hydrophobicity of the anti-slip column 4 helps reduce water residue on the blanket 1 and facilitates water flow on the surface of the blanket 1, improving drainage efficiency and thus enhancing the anti-slip effect.
[0029] During preparation, the blanket 1 is immersed in a toluene or hexane solution of octadecyltrichlorosilane or methoxysilane with a mass concentration of 1%-5%. After immersion for a few minutes to a few hours, it is taken out, and the unreacted substances are rinsed off with solvent. The hydrophobic layer is obtained by drying at room temperature or by heating. The hydrophobic layer is very thin and has stable performance, and does not affect the overall appearance of the anti-slip column 4.
[0030] Therefore, the anti-slip negative pressure blanket described in this utility model can solve the problems of poor drainage effect and poor anti-slip effect on the upper surface caused by surface water accumulation in existing anti-slip negative pressure blankets.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. An anti-slip negative pressure blanket characterized by: The blanket body includes a number of drainage units evenly distributed on its upper surface. Each drainage unit includes a drainage area. A connecting platform is provided between adjacent drainage areas. The height of the connecting platform is not less than the height of the drainage area. A number of anti-slip posts are evenly distributed on the upper surface of the drainage area. At least one drainage hole penetrating the blanket body is provided on the drainage area. The drainage area includes a number of drainage slopes. The side of the drainage slope is tangent to the drainage hole.
2. The non-slip negative pressure blanket of claim 1, wherein: The upper surface of the drainage slope is a slope that gradually slopes downward from the edge of the blanket toward the drainage hole.
3. The non-slip negative pressure blanket of claim 1, wherein: The anti-slip column is a cylindrical structure with a chamfer at the top and is arranged in a linear array on the upper surface of the drainage area.
4. The non-slip negative pressure blanket of claim 1, wherein: The height of the anti-slip post is 1mm-10mm.
5. The non-slip negative pressure blanket of claim 1, wherein: A water collection trough is provided around the drain hole. The height of the water collection trough is lower than the height of the drainage area, and the water collection trough is connected to the drain hole.
6. The non-slip negative pressure blanket of claim 1, wherein: A negative pressure valve is installed at the bottom of the drain hole to discharge the water inside.
7. The non-slip negative pressure blanket of claim 1, wherein: The bottom of the blanket is provided with a connecting groove, the two ends of which extend to the edge of the blanket. The connecting groove is connected to the drain hole through a connecting groove to drain water from the blanket.
8. The non-slip negative pressure blanket of claim 1, wherein: The edge of the blanket is provided with a sloping edge that gradually slopes outward from the upper surface to the bottom surface of the blanket.
9. The non-slip negative pressure blanket of claim 1, wherein: The outer surface of the anti-slip post is provided with a hydrophobic coating.
10. The non-slip negative pressure blanket of claim 1, wherein: A non-woven fabric layer is provided on the upper surface of the drainage area.
Citation Information
Patent Citations
Negative pressure water absorption blanket
CN214230830U
