A type of folding drainage well cover

Abstract

This invention discloses a folding drainage manhole cover, comprising a base and a drainage manhole cover mounted on the base. The base has a through-hole, and two opposing right-angled curved plates on the bottom surfaces of its side walls form a slide. The slide has multiple drainage holes. A roller is located at the end of the first manhole cover away from the second manhole cover, and the roller is slidably mounted within the slide. A U-shaped notch is located in the middle of the end of the first manhole cover facing the second manhole cover, forming a groove. A warning plate is inserted into the groove, and a baffle is located at the upper end of the warning plate to prevent it from falling off the drainage manhole cover. In this invention, the slide is formed by the right-angled curved plates mounted on the base, and the bottom surface of the slide has drainage holes. The two ends of the slide are open, making it less prone to water and debris accumulation and rusting. The folding and sliding of the manhole cover is also more effortless.

Description

Technical Field

[0001] This invention relates to the field of rainwater drainage device technology, specifically to a folding drainage well cover. Background Technology

[0002] Municipal drainage projects are used to remove standing water from urban roads, parks, squares, and other places. Among them, drainage well covers are an important component of municipal drainage projects.

[0003] During heavy rainfall, it is often necessary to open drainage manhole covers for rapid drainage. To address this, Chinese invention patent CN112627316B discloses a municipal drainage manhole cover, comprising a main frame, a folding drainage mechanism, and a fixing mechanism. By incorporating a main frame, a storage groove, a lifting groove, a limiting slide groove, a connecting groove, a filter box, a filter chamber, filter holes, a first drainage cover, a second drainage cover, drainage holes, a warning pipe, a limiting slider, a first sleeve, a second sleeve, a rotating connecting rod, a connecting column, connecting holes, and a float, the drainage efficiency of the manhole cover can be effectively improved. The first and second drainage covers can be folded up to create a gap between themselves and the main frame, allowing surface water to flow directly into the drainage pipe, thus effectively increasing the drainage speed and preventing prolonged water accumulation on the ground from damaging public facilities. However, this solution has the following problems:

[0004] First, the drainage well cover leaves a large gap when folded open, posing a safety hazard of slipping. The warning pipe is installed on the drainage cover, but it is low to the ground, resulting in poor safety warning effect.

[0005] Secondly, the slide is prone to water accumulation and rusting, and folding and unfolding it is quite difficult.

[0006] Therefore, existing folding drainage well covers need to be improved to enhance safety warning effects and make folding and unfolding easier. Summary of the Invention

[0007] To address the aforementioned shortcomings, the technical problem to be solved by this invention is to provide a foldable drainage well cover, which solves the problems of inconvenient installation of existing filter grids and the need for further improvement in drainage performance, construction efficiency, and construction quality.

[0008] Therefore, the present invention provides a foldable drainage well cover, comprising a base and a drainage well cover disposed on the base, the drainage well cover including a first well cover and a second well cover hinged together, and also including a warning plate.

[0009] The base includes a rectangular frame with a through well opening. Two opposite sidewalls of the well opening are provided with oppositely arranged right-angled curved plates. The right-angled curved plates and the bottom surfaces of the corresponding sidewalls form a slide. Multiple drainage holes are provided on the bottom surface of the slide along its length.

[0010] The first manhole cover and the second manhole cover are symmetrical structures. Rollers are provided on both sides of the end of the first manhole cover away from the second manhole cover. The rollers are slidably disposed in the slide. A U-shaped notch is provided in the middle of the end of the first manhole cover facing the second manhole cover. Two hinges are respectively disposed on the outside of the U-shaped notch, which hinges the first manhole cover and the second manhole cover. The U-shaped notches of the first manhole cover and the second manhole cover are arranged opposite each other to form a slide groove. The warning plate is inserted into the slide groove. The upper end of the warning plate is provided with a baffle to prevent it from falling off the drainage manhole cover.

[0011] In the above technical solution, preferably, the width of the baffle is greater than the width of the groove.

[0012] In the above technical solution, preferably, the top surfaces of the first manhole cover and the second manhole cover are flush with the top surface of the base.

[0013] In the above technical solution, preferably, the outer end face of the filter screen is flush with the outer end face of the slot, and the filter screen is provided with longitudinally arranged strip-shaped through holes.

[0014] In the above technical solution, preferably, the right-angle bending plate and the roller are made of hot-dip galvanized stainless steel thickened profiles, and the first manhole cover and the second manhole cover are made of cast iron.

[0015] In the above technical solution, preferably, both the front and back of the baffle are covered with a rubber layer.

[0016] In the above technical solution, preferably, the drainage hole is two rows of strip-shaped holes.

[0017] As can be seen from the above technical solution, the folding drainage well cover provided by the present invention solves the problems of poor safety warning effect and difficulty in folding and unfolding in the prior art. Compared with the prior art, the present invention has the following beneficial effects:

[0018] The slide is formed by a right-angle curved plate, and drainage holes are provided on the bottom surface. The slide is open at both ends, preventing water and debris from accumulating and reducing rust. The folding and sliding of the manhole cover is also easier. Furthermore, the slide can be easily cleaned by spraying water, allowing debris to fall through the drainage holes. Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the closed state of the foldable drainage well cover provided by the present invention;

[0021] Figure 2 This is a schematic diagram showing the front view of the foldable drainage well cover in its open state provided by the present invention.

[0022] Figure 3 A schematic diagram of the rear view of the foldable drainage well cover provided by the present invention in its open state.

[0023] Figure 4 This is a schematic diagram of the base in this invention;

[0024] Figure 5 for Figure 4 Enlarged view of part A in the image;

[0025] Figure 6 This is a schematic diagram of the first and second manhole covers in this invention;

[0026] Figure 7 This is a schematic diagram of the first manhole cover in this invention. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] To provide a clearer explanation and description of the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are described below.

[0029] It should be noted that the directional terms such as "inner" and "outer", "front" and "back" and "left" and "right" in this article are based on the product's usage status. Obviously, the use of these directional terms does not limit the scope of protection of this solution.

[0030] Please see Figure 1 , Figure 1 This is a schematic diagram showing the normal use state of the foldable drainage well cover provided by the present invention. Figure 2 This is a schematic diagram of the folded drainage well cover provided by the present invention in the forward view of its folded state. Figure 3 This is a schematic diagram of the folded drainage well cover provided by the present invention from the rear view in its folded state.

[0031] like Figure 1 , Figure 2 , Figure 3As shown, the present invention provides a foldable drainage manhole cover, including a base 10 and a foldable manhole cover 20 disposed on the base 10. The foldable manhole cover 20 is formed by hinged combination of a first manhole cover 21 and a second manhole cover 22, and a pull-out warning plate 30 is provided between the first manhole cover 21 and the second manhole cover 22.

[0032] The folding manhole cover 20 can unfold the first manhole cover 21 and the second manhole cover 22 onto the same plane, forming a shape like... Figure 1 As shown in the usage configuration, the first manhole cover 21 and the second manhole cover 22 can also be folded upwards from both ends towards the middle to form a shape like... Figure 2 , Figure 3 The folded state shown.

[0033] like Figure 4 , Figure 5 As shown, the base 10 includes a rectangular frame 11, the rectangular frame 11 has a well opening 12 that runs vertically through the bottom, and right-angled curved plates 13 are provided on the bottom surfaces of the two opposite side walls of the well opening 12. The right-angled curved plates 13 and the bottom surfaces of the corresponding side walls form a slide 14, and multiple drainage holes 15 are provided on the bottom surface of the slide 14 along its length direction.

[0034] like Figure 6 , Figure 7 As shown, the first manhole cover 21 and the second manhole cover 22 are rectangular in shape to match the manhole opening 12, and both have multiple drainage holes 23. The first manhole cover 21 and the second manhole cover 22 have a symmetrical structure. Taking the first manhole cover 21 as an example, rollers 24 are provided on both sides of the end of the first manhole cover 21 away from the second manhole cover 22. The rollers 24 are slidably arranged in the slide rail 14. A U-shaped notch 25 is provided in the middle of the end of the first manhole cover 21 facing the second manhole cover 22. Two hinges 26 are respectively provided on the outside of the U-shaped notch 25, hinged to the first manhole cover 21 and the second manhole cover 22. The drainage holes 23 are two rows of strip holes to improve strength.

[0035] The U-shaped notches 25 of the first manhole cover 21 and the second manhole cover 22 are arranged opposite each other to form a chute 27. The warning plate 30 is inserted into the chute 27. The upper end of the warning plate 30 is provided with a baffle 31 to prevent it from falling off the drainage manhole cover. For example, the width of the baffle 31 is greater than the width of the chute 27. When the warning plate 30 is inserted, the baffle 31 is attached to the top surface of the first manhole cover 21 and the second manhole cover 22 to prevent it from falling off the chute 27.

[0036] This invention has two states: normal use and folded. For example... Figure 2The diagram shows the normal operating state of the invention. In this state, the roller 24 is located within the slide 14, the first manhole cover 21 and the second manhole cover 22 are in the same plane, flush with the top surface of the base 10, and the warning plate 30 is inserted into the slide groove 27 at its lowest position. When heavy rainfall occurs, the connection between the first manhole cover 21 and the second manhole cover 22 is lifted upwards, and the second manhole cover 22 is pushed towards the first manhole cover 21, causing both the first and second manhole covers 21 and 22 to be close to the sidewall of the manhole opening on the first manhole cover side. This enlarges the manhole opening, allowing for faster drainage. Simultaneously, the warning plate 30 is pulled upwards. Both the front and back of the warning plate 30 are covered with a rubber layer, increasing friction and allowing it to hover at any position. Because the height of the warning plate 30 is significantly increased, the warning effect is more conspicuous, improving safety.

[0037] Alternatively, a similar method can be used to move the first manhole cover toward the second manhole cover and fold it over.

[0038] As described in the background section, existing folding manhole covers have tracks formed on the sidewalls of the manhole opening, resulting in complex manufacturing processes. Furthermore, the bottom and ends are closed structures, making it prone to water accumulation, rust, or debris buildup, leading to poor sliding performance and difficulty in folding. In contrast, the solution in this application uses a right-angled curved plate formed on the bottom surface of the base. This design is simple and convenient to manufacture, and bolts can be used for fixing, facilitating replacement. Drainage holes are provided on the bottom surface of the track, and both ends are open, preventing water and debris accumulation. Additionally, the track can be cleaned by spraying water, allowing debris to fall through the drainage holes, making folding and sliding even easier.

[0039] In this invention, the base 10 can be fixed with pre-embedded bolts, and the rollers 24 of the first and second manhole covers are slidably arranged in the slide rail 14, which has a good anti-theft effect.

[0040] In addition, the slides and rollers made of right-angle curved plates are all made of hot-dip galvanized stainless steel thickened profiles, which effectively prevents rust. The first and second manhole covers are made of cast iron materials to reduce costs.

[0041] This invention features a fully enclosed design, ensuring the safety of citizens' travel, and is suitable for new urban construction and the renovation of drainage outlets in old cities.

[0042] Based on the above description of specific embodiments, the folding drainage well cover provided by the present invention has the following advantages compared with the prior art:

[0043] First, the slide is formed by a right-angled curved plate, and the bottom surface of the slide has drainage holes. The two ends of the slide are open, making it less prone to water and debris accumulation and rust. The folding and sliding of the manhole cover is also easier. Additionally, the slide can be cleaned by spraying water, causing debris to fall through the drainage holes and maintaining its smooth sliding effect.

[0044] Secondly, the two-way push-pull slide mechanism makes it more convenient to use.

[0045] Third, the warning board is inserted between the first and second manhole covers. After folding, the warning board can be pulled upwards to remind pedestrians to detour. It has a higher height, a better warning effect, and improves safety.

[0046] Fourth, the entire installation is fixed with pre-embedded bolts, which provides strong anti-theft performance.

[0047] Finally, it should be noted that the terms "comprising," "including," or any other variations thereof as used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a…" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] This invention is not limited to the above-described preferred embodiments. Anyone should know that any structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention.

Claims

1. A folding drain cover, comprising a base and a drain cover disposed on the base, the drain cover comprising a first cover and a second cover hinged together, characterized in that, It also includes warning signs, The base includes a rectangular frame with a through well opening. Two opposite sidewalls of the well opening are provided with oppositely arranged right-angled curved plates. The right-angled curved plates and the bottom surfaces of the corresponding sidewalls form a slide. Multiple drainage holes are provided on the bottom surface of the slide along its length. The first manhole cover and the second manhole cover are symmetrical structures. Rollers are provided on both sides of the end of the first manhole cover away from the second manhole cover. The rollers are slidably disposed in the slide. A U-shaped notch is provided in the middle of the end of the first manhole cover facing the second manhole cover. Two hinges are respectively disposed on the outside of the U-shaped notch, hinged to the first manhole cover and the second manhole cover. The U-shaped notches of the first manhole cover and the second manhole cover are arranged opposite each other to form a slide groove. The warning plate is inserted into the slide groove. The upper end of the warning plate is provided with a baffle to prevent it from falling off the drainage manhole cover. Both the front and back of the baffle are covered with a rubber layer.

2. The folding drainage well cover according to claim 1, characterized in that, The width of the baffle is greater than the width of the chute.

3. The folding drainage well cover according to claim 1, characterized in that, The top surfaces of the first manhole cover and the second manhole cover are flush with the top surface of the base.

4. The folding drainage well cover according to claim 1, characterized in that, The right-angle bending plate and the roller are made of hot-dip galvanized stainless steel thickened profiles, and the first manhole cover and the second manhole cover are made of cast iron.

5. The folding drainage well cover according to claim 1, characterized in that, The drainage holes consist of two rows of strip-shaped holes.

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