A type of anti-suction drainage cover

Abstract

This utility model relates to an anti-sucking drainage cover, comprising a cover body with several water passages for water flow. The top surface of the cover body is a water ripple pattern extending from the center to the edge, thereby achieving an anti-sucking function. The water ripple pattern includes concentrically arranged crest water passage areas and trough water passage areas extending from the center to the edge, with trough water passage areas formed between adjacent crest water passage areas. Both crest and trough water passage areas are provided with the water passages. This application aims to provide a drainage cover with an improved top surface shape to achieve an anti-sucking function.

Description

Technical Field

[0001] This utility model relates to the field of drainage covers, and in particular to an anti-suction drainage cover. Background Technology

[0002] In a swimming pool water circulation system, the drain outlet is a key component, undertaking the core function of draining water from the pool to achieve filtration, purification, and renewal. Its structural design is directly related to drainage efficiency and safety.

[0003] Traditional swimming pools typically have drain covers at the drain outlets, with the top surface of these covers generally featuring a flat design. During drainage, the water flow must converge from the surrounding areas towards the drain hole in the center of the flat surface, creating a concentrated flow path and generating significant water pressure. This pressure creates a substantial negative pressure suction near the drain outlet. When a person (especially hair, limbs, etc.) approaches this flat drain outlet, they are easily attracted and held in place by this negative pressure suction, potentially causing personal injury and, in severe cases, even leading to a safety accident, posing a significant safety hazard.

[0004] Therefore, in view of the shortcomings of the existing pool drainage cover in terms of structural design, there is an urgent need to propose a drainage cover structure improvement scheme that can further optimize water flow distribution and significantly reduce negative pressure suction, so as to improve the safety of pool drainage system. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned technical problems and provide a drainage cover with an improved top surface shape to achieve anti-sucking function.

[0006] A water-absorbing cover includes a cover body with several water passages for water to flow through. The top surface of the cover body is a water ripple pattern that spreads from the center to the edge to achieve the water-absorbing function. The water ripple pattern includes concentrically arranged crest water passage areas and trough water passage areas that extend from the center to the edge. Adjacent crest water passage areas form trough water passage areas. Both crest water passage areas and trough water passage areas are provided with the water passages.

[0007] According to the anti-sucking drainage cover of this application, the top surface of the cover is set as a water ripple surface that diffuses from the middle of the cover to the edge, including peak water passage areas and trough water passage areas. These areas are all provided with water passage channels. Compared with traditional flat drain outlets and single arc-shaped drain outlets, it can realize multi-path and multi-level dispersion of water flow. The undulating structure of the water ripple surface can break the path of concentrated water flow, so that the water flow forms a dispersed flow pattern in the peak and trough areas, which greatly reduces the local negative pressure suction force and fundamentally reduces the risk of human body being sucked in from the structure. At the same time, water passage channels are provided in both the peak and trough areas. Under the premise of optimizing anti-sucking performance, the total flow area of ​​the drainage channel is guaranteed, avoiding the decrease in drainage efficiency due to structural improvement, and achieving a balance between safety and drainage efficiency.

[0008] Furthermore, it also includes a first reinforcing rib, which is configured to extend from the edge of the cover towards the center of the cover, and the top surface of the first reinforcing rib is also configured with the same water ripple pattern as the top surface of the cover. The first reinforcing rib strengthens the overall structural strength of the cover.

[0009] Furthermore, it also includes a first reinforcing rib, which is configured to extend from the edge of the cover towards the center of the cover, and the top surface of the first reinforcing rib is configured to be flush with the top of the wave crest water-passing area. The first reinforcing rib strengthens the overall structural strength of the cover.

[0010] Furthermore, the first reinforcing rib also has the aforementioned water passage. This structure achieves a synergistic improvement in structural reinforcement and drainage capacity, avoiding the sacrifice of drainage performance in pursuit of strength.

[0011] Furthermore, the water passage includes a grid-type channel and a perforated channel. The cover is generally circular, with the grid-type channel located on the outer ring and the perforated channel on the inner ring. The grid-type channel can meet the needs of high-flow-rate drainage and easily block larger debris. The water flow is relatively concentrated in the inner ring, while the perforated channel can achieve precise flow diversion to reduce negative pressure. This zoned channel structure, combined with the water ripple surface, further optimizes the water flow distribution, enhancing the ability to filter debris while strengthening the anti-sucking effect.

[0012] Furthermore, the perforated channel includes a circular perforated channel and / or an elongated perforated channel. Circular perforated channels are easy to process and distribute stress evenly, making them suitable for conventional drainage needs; elongated perforated channels can provide a larger flow cross-section within the same area, making them suitable for high-flow-rate drainage scenarios.

[0013] Furthermore, the grid-like channel is provided with a second reinforcing rib arranged circumferentially along the cover. The second reinforcing rib specifically enhances the structural strength of the outer grid area.

[0014] Furthermore, the edge of the cover is provided with mounting holes for installing the cover onto the pool drain outlet. Attached Figure Description

[0015] Figure 1 This is a top view of the anti-sucking drainage cover of this utility model.

[0016] Figure 2 This is a cross-sectional view of the anti-sucking drainage cover of this utility model.

[0017] Figure 3 This is a perspective view of Embodiment 1 of the anti-suction drainage cover of this utility model.

[0018] Figure 4 This is a perspective view of Embodiment 2 of the anti-suction drainage cover of this utility model.

[0019] Figure 5 This is a perspective view of Embodiment 3 of the anti-suction drainage cover of this utility model. Detailed Implementation

[0020] The present invention relates to an anti-suction drainage cover, which is described in conjunction with the accompanying drawings.

[0021] like Figures 1 to 5 The illustration shows an anti-sucking drainage cover, comprising a cover body 1, on which a plurality of water passages 2 are provided for water flow; the top surface of the cover body 1 is a water ripple pattern that diffuses from the center to the edge, thereby achieving an anti-sucking function. (See attached illustration.) Figure 1 In the illustrated embodiment, the cover 1 is circular in a top view, with the center of the cover 1 being the center of the circle. That is, the top surface of the cover 1 has a water ripple pattern that spreads from the center to the edge. The water ripple pattern includes concentrically arranged crest water-passing areas 11 and trough water-passing areas 12 extending from the center to the edge. Adjacent crest water-passing areas 11 form trough water-passing areas 12. Both crest water-passing areas 11 and trough water-passing areas 12 are provided with water-passing channels 2. (Appendix to this application) Figure 2 In the illustrated embodiment, the central area of ​​the cover 1 is the crest water passage area 11, and radially outward there is a ring of trough water passage areas 12 and a ring of crest water passage areas 11. The ring of crest water passage areas 11 is the outermost water passage area of ​​the cover 1. Therefore, the cover 1 shown in the attached drawings of this application has one trough water passage area 12 and two crest water passage areas 11. Compared with traditional planar drain outlets and single arc-shaped drain outlets, it can realize multi-path and multi-level dispersion of water flow. The undulating structure of the water ripple surface can break the path of concentrated water flow, so that the water flow forms a dispersed flow pattern in the crest and trough areas, greatly weakening the local negative pressure suction force, and fundamentally reducing the risk of human body being adsorbed from the structure.

[0022] like Figure 3 and Figure 4 As shown in Embodiments 1 and 2, the system also includes a first reinforcing rib 3. The first reinforcing rib 3 is configured to extend from the edge of the cover 1 towards the center of the cover 1, and the top surface of the first reinforcing rib 3 is also configured with the same water ripple pattern as the top surface of the cover 1. This not only enhances the overall structural strength and deformation resistance of the cover 1 through the supporting effect of the first reinforcing rib 3, preventing the cover 1 from deforming due to water flow impact or external force stepping and affecting the anti-sucking effect, but also ensures the continuity and stability of the anti-sucking function because the top surface of the first reinforcing rib 3 is uniform in shape with the top surface of the cover 1.

[0023] like Figure 5 As shown in Embodiment 4, it also includes a first reinforcing rib 3, which is configured to extend from the edge of the cover 1 to the center of the cover 1. The top surface of the first reinforcing rib 3 is configured to be flush with the top of the wave crest water-passing area 11. This design can simplify the processing technology of the first reinforcing rib 3 and achieve a balanced optimization of structural strength and anti-absorption performance.

[0024] like Figures 3 to 5 As shown, the first reinforcing rib 3 in all embodiments is also provided with the water passage 2. This structure effectively solves the problem that the reinforcing rib may block the water flow and reduce the drainage area, so that the reinforcing rib area can also participate in drainage, increasing the overall drainage path and ensuring drainage efficiency. At the same time, the setting of the water passage 2 does not weaken the supporting effect of the reinforcing rib on the cover 1, realizing the synergistic improvement of structural reinforcement and drainage capacity, and avoiding sacrificing drainage performance in pursuit of strength.

[0025] like Figures 3 to 5 As shown, the water passage 2 includes a grid-type channel 21 and a perforated channel 22. The cover 1 is generally circular. The grid-type channel 21 is located on the outer ring of the cover 1, and the perforated channel 22 is located on the inner ring of the cover 1. The circular design of the cover 1 is adapted to the common circular drain outlets of swimming pools, improving the versatility and installation adaptability of the product. With the grid-type channel 21 located on the outer ring and the perforated channel 22 located on the inner ring, the water flow rate is larger and the flow velocity is relatively gentle on the outer ring. The grid-type channel 21 can meet the high-flow drainage requirements and is easy to block larger debris. The water flow is relatively concentrated on the inner ring, and the perforated channel 22 can achieve precise diversion to reduce negative pressure. This partitioned channel structure, combined with the water ripple surface, further optimizes the water flow distribution, improving the ability to filter debris while enhancing the anti-sucking effect.

[0026] The perforated channel 22 includes circular perforated channels and / or elongated perforated channels. Circular perforated channels are easy to manufacture and distribute stress evenly, making them suitable for conventional drainage needs. Elongated perforated channels, on the other hand, can provide a larger flow cross-section within the same area, making them suitable for high-flow-rate drainage scenarios, such as... Figures 3 to 5As shown in the accompanying drawings, the embodiment using the elongated perforated channel can also be used. Alternatively, a circular perforated channel or a combination of a circular perforated channel and an elongated perforated channel can also be used for drainage.

[0027] like Figures 3 to 5 As shown, the grid channel 21 is provided with a second reinforcing rib 4 arranged circumferentially along the cover body 1. The second reinforcing rib 4 specifically enhances the structural strength of the outer grid area.

[0028] like Figures 3 to 5 As shown, the edge of the cover 1 is provided with mounting holes 13 for installing the cover 1 onto the pool drain outlet.

[0029] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A drain-proof cover characterized by, The cover body is provided with a plurality of water passing channels for water flow; the top surface of the cover body is a water wave type surface spreading from the middle part of the cover body to the edge, so as to realize the anti-suction function by the water wave type surface; the water wave type surface comprises wave peak water passing areas and wave valley water passing areas arranged concentrically and extending from the middle part to the edge, the wave valley water passing areas are formed between adjacent wave peak water passing areas, and the wave peak water passing areas and the wave valley water passing areas are both provided with the water passing channels.

2. The drain cover of claim 1, wherein, The first reinforcing rib is arranged to extend from the edge of the cover body to the middle part of the cover body, and the top surface of the first reinforcing rib is also provided with the same water wave type surface as the top surface of the cover body.

3. The drain back prevention cap of claim 1, wherein, The first reinforcing rib is arranged to extend from the edge of the cover body to the middle part of the cover body, and the top surface of the first reinforcing rib is arranged to be flush with the top of the wave peak water passing area.

4. A drain cover according to claim 2 or 3, characterised in that The water passing channels are arranged on the first reinforcing rib.

5. The drain back prevention cap of claim 1, wherein, The water passing channels comprise grid type channels and hole type channels, the cover body is in a circular shape, the grid type channels are arranged on the outer ring of the cover body, and the hole type channels are arranged on the inner ring of the cover body.

6. The drain back prevention cap of claim 5, wherein, The hole type channels comprise circular hole type channels and / or long strip hole type channels.

7. The drain back prevention cap of claim 5, wherein, The second reinforcing rib is arranged in the grid type channel and arranged circumferentially on the cover body.

8. The drain back prevention cap of claim 1, wherein, The edge of the cover body is provided with a mounting hole for mounting the cover body on the swimming pool drain.

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