Pervious concrete hidden rainwater well lid for sponge city and construction method

Abstract

The invention relates to a sponge city pervious concrete hidden rainwater well lid and a construction method, the hidden rainwater well lid comprises a well seat, the well seat is matched with a hidden well ring, an upper well lid is installed above the hidden well ring, the center of the hidden well ring is concaved inwards to form a groove, a flow dividing block is installed at the center of the groove, and a partition plate is installed on the upper surface of the hidden well ring; the partition plates are distributed in a spiral shape, flow channels are arranged between the adjacent partition plates, and liquid diodes are evenly arranged on the surfaces of the flow channels. A metal net and a rotating motor are installed on the lower surface of the hidden walling crib, the rotating motor is connected with a plurality of cleaning arms, through the structures of the hidden walling crib, the flow dividing block, the partition plate, the flow channel and the like, water drops are gradually gathered in the flow channel to form water flow under the action of gravity and the fluid diodes, flushing is conducted along the flow channel, and effective collection and flow dividing of rainwater are achieved. Meanwhile, due to the application of the fluid diode, water flow can spontaneously flow in the specific direction, sand accumulation is effectively avoided, and the maintenance cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of urban construction, and specifically relates to a sponge city permeable concrete hidden rainwater manhole cover and a construction method thereof. Background Art

[0002] Sponge city, as the embodiment of the new generation of urban stormwater management concept, refers to the excellent resilience of cities in adapting to environmental changes and responding to natural disasters caused by rainwater. This concept can also be called "water-elastic city". Specifically, the city has significant "resilience" in environmental adaptability and natural disaster response, which is generally referred to as "low-impact development rainwater system construction" internationally. During rainfall, the city can perform water absorption, water storage, water infiltration and water purification functions, and release the stored water resources for use when necessary, so as to realize the free flow of rainwater in the urban space.

[0003] In municipal road projects and outdoor auxiliary construction, rainwater manhole covers have been widely used as an indispensable building material. At present, ductile iron manhole covers have become the mainstream choice due to their excellent performance, and their installation method is mainly open installation. However, there are certain difficulties in the treatment of the joints between ductile iron manhole covers and permeable asphalt roads and permeable concrete, which limits their application in new permeable asphalt roads and permeable concrete roads. In order to meet the aesthetic requirements, rainwater manhole covers are usually placed under new permeable asphalt roads and permeable concrete roads. However, traditional rainwater manhole covers do not have a permeable function, so the development of permeable concrete manhole covers has become the key to solving this problem. In addition, although permeable asphalt roads and permeable concrete roads can effectively prevent large foreign objects and garbage from entering the sewer, it is difficult to intercept the fine sand particles carried in the water flow, causing these particles to gradually accumulate on the surface of the manhole cover, thereby reducing the water permeability of the drainage manhole cover. This phenomenon needs to be solved by regular manual cleaning, which increases the complexity of maintenance. Summary of the invention

[0004] In order to solve the problem that traditional manhole covers cannot effectively intercept sand and soil carried in the water flow under the permeable concrete layer, and that sand and soil accumulate on the inner surface of the manhole cover after interception, requiring frequent manual cleaning, the present invention proposes a sponge city permeable concrete hidden rainwater manhole cover and a construction method to solve the above problems.

[0005] A sponge city permeable concrete hidden rainwater manhole cover: comprising a manhole seat, the manhole seat is matched with a hidden manhole ring, an upper manhole cover is installed above the hidden manhole ring, and a groove is arranged in the center of the hidden manhole ring;

[0006] A flow diversion block is arranged on the surface of the groove, a partition plate is detachably mounted on the upper surface of the hidden well ring, a flow channel is formed between adjacent partition plates, and a baffle plate is detachably mounted on the outermost flow channel.

[0007] The upper surface of the hidden well ring is evenly provided with fixing columns, the fixing columns are fixed with the partition plate, the opening of the partition plate is matched with a baffle plate, and the two ends of the baffle plate are respectively fixed or limited with the inner surface of the groove and the partition plate.

[0008] A diverter block fixing column detachably connected to the diverter block is arranged in the center of the upper surface of the hidden well ring.

[0009] The flow channel is set up to collect rainwater to form a natural water flow, so as to achieve self-flushing of the flow channel and prevent the accumulation of sand and soil. On this basis, the filter material is filled in the outermost flow channel to increase the elevation of the flow channel, thereby forming a height difference between the inner and outer flow channels. The gravity is used to accelerate the flushing process of the flow channel, ensure the uniform distribution of sand and soil, and avoid the cleaning difficulties caused by the long-term concentrated accumulation of sand and soil.

[0010] Fixed columns are evenly arranged on the upper surface of the hidden well ring, and the fixed columns are fixed with the partition plate. The opening of the partition plate is equipped with a baffle plate, and the two ends of the baffle plate are respectively fixed or limited with the inner surface of the groove and the partition plate; fixed columns are arranged at the bottom of the central groove of the hidden well ring, and different numbers of partition plates are arranged on the hidden well ring according to specific construction requirements during the construction process to form multiple groups of flow channels, so as to enhance its applicability and reduce production costs.

[0011] Furthermore, the baffle can be bent according to usage requirements to improve applicability.

[0012] Furthermore, reinforcing ribs are provided on the lower surface of the hidden well ring, a metal mesh is installed on the lower surface of the hidden well ring, a rotating motor is installed at the center of the lower surface of the hidden well ring, and a plurality of cleaning arms are connected to the rotating motor.

[0013] Furthermore, the hidden well ring includes a ribbed plate, which is arranged in a ring shape inside the hidden well ring. The metal mesh and reinforcing ribs are arranged at intervals in the horizontal direction. The ribbed plate and the reinforcing ribs are fixedly connected, and the metal mesh is located at the center of the ribbed plate.

[0014] Furthermore, a brush is installed on the side of the cleaning arm close to the metal mesh, a main rolling wheel is installed on the end of the cleaning arm away from the rotating motor, and auxiliary rolling wheels are installed on the upper and lower sides of the end of the cleaning arm away from the rotating motor.

[0015] Furthermore, an electrical channel is provided inside the hidden well ring, and the rotating motor is electrically connected to an external power source through the electrical channel.

[0016] Furthermore, the well seat is a finalized component, and the well seat comprises two upper and lower tongues and grooves, which are respectively fixedly connected to the well seat and the hidden well ring through a cement mortar bonding layer, and a solid baffle is provided in the middle of the well seat.

[0017] Furthermore, a sealing strip is provided at the connection between the hidden well ring and the well seat, and the upper part of the hidden well ring can be electroplated and colored.

[0018] Furthermore, the interior of the groove arranged in the center of the hidden well ring can be filled with materials such as asphalt, permeable concrete, and pebbles.

[0019] Furthermore, the edge of the hidden well ring is provided with opening grooves, the opening grooves are evenly distributed along the edge of the hidden well ring, and the opening grooves include pulling holes and inclined grooves.

[0020] Furthermore, the well seat, hidden well ring, pull hole, and steel bottom net are all made of metal materials with a certain strength, which can meet the design vehicle load requirements;

[0021] Furthermore, the well base can be factory-produced, and the wellhead can be mass-produced in the universal sizes of DN900, DN800, and DN600, or customized according to the design requirements.

[0022] Furthermore, the concave part of the hidden well ring can be filled with asphalt, permeable concrete, pebbles, etc., which can be applied to a variety of scenarios;

[0023] Furthermore, when the permeable hidden rainwater manhole cover is used in urban roads, the concave part of the hidden manhole ring can be filled with asphalt surface layer, which improves the comfort of drivers while ensuring the overall visual effect;

[0024] Furthermore, when the permeable hidden rainwater manhole cover is constructed on a road surface with permeability requirements, the concave part can be filled with permeable materials, such as permeable concrete, permeable asphalt, etc., which can not only improve the visual quality, but also enhance the driving comfort. Since permeable concrete and permeable asphalt have certain rainwater permeability, the permeable hidden rainwater manhole cover can assist in rainwater collection and drainage, prevent road waterlogging, and alleviate urban waterlogging.

[0025] Furthermore, when the permeable hidden rainwater manhole cover is used for greening landscaping, the concave part can be filled with granular materials such as pebbles to ensure the aesthetics while achieving rainwater collection, infiltration and external discharge;

[0026] Furthermore, the hidden well ring can be electroplated and colored to distinguish wells with different functions to meet various usage requirements;

[0027] Furthermore, the steel bottom mesh is composed of ribbed plates, metal mesh and ribbed ribs, and has a certain strength, wherein the ribbed plates are arranged in a ring shape, and the metal mesh and ribbed ribs are arranged in a horizontal direction at intervals;

[0028] Furthermore, when installing the hidden manhole ring, the ribbed direction should be perpendicular to the vehicle travel direction, and the mesh size of the metal mesh should be less than 1 cm;

[0029] Furthermore, the hidden well ring is placed in the tongue and groove on the well seat, and opening grooves are evenly distributed along the well ring. The opening grooves are symmetrically inclined and concave, and a pulling hole is provided in the middle. The inclined concave can be beneficial to the fixation of the opening tool, and the pulling hole can meet the fixation of the opening tool so as to achieve the purpose of opening and maintenance.

[0030] The fluid diode reduces the flow resistance in one direction and increases the flow resistance in the opposite direction by designing a unique micro-nano structure. The two are perfectly combined without interfering with each other, achieving long-distance self-driven transmission of liquid.

[0031] The water that infiltrates the permeable concrete layer flows into the groove in the center of the hidden well ring through the guidance of the upper manhole cover, and then drips into the flow channel. Under the action of the fluid semiconductor, the water flows spontaneously along the flow channel and gradually converges into a larger water flow. When the water flows in the flow channel, it flushes the flow channel, and at the same time, it uses the height difference between the inner and outer layers of the flow channel to form an effective water flow flushing effect, ensuring that the sediment is evenly distributed and preventing sand from accumulating in specific areas. This design helps to extend the overall cleaning cycle and the service life of the manhole cover. Finally, the water carrying sand flows into the rainwater well through the metal mesh. After long-term use, the metal mesh may accumulate sand. At this time, the staff only needs to start the rotating motor in the adjacent control room to drive the cleaning arm to perform cleaning operations, thereby removing the sand attached to the lower surface of the manhole cover. This process further extends the interval between manual cleaning and improves the overall maintenance work efficiency.

[0032] A construction method of a sponge city permeable concrete hidden rainwater manhole cover comprises the following steps:

[0033] S1. Manufacture inspection wells of corresponding specifications and models according to the requirements of the drawings, and each inspection well is assembled according to the attached drawings;

[0034] S2. After the structural well of the rainwater inspection well is completed, the well seat and the structural well seat are tightly fixed before the road base is constructed; the base is constructed to the outside of the upper tongue and groove of the well seat, at which time the lower tongue and groove is placed inside the road base, and manual compaction is used to ensure that the well seat is firmly fixed and does not slip;

[0035] Before the road surface construction, the hidden well ring is placed inside the tongue and groove on the well seat, and the hidden well ring fits tightly with the well seat without looseness;

[0036] S3, a1: When used in landscape and greening projects, the concave part of the hidden well ring can be filled with pebbles and other materials; the concave part of the hidden well ring should be constructed together, and the filling material inside the well ring should be consistent with the material used on the main surface of the road. When paving, manual paving and mechanical compaction should be used to ensure that the road surface is flat;

[0037] a2: When the rainwater well is completely covered by the road surface, first install the partition plate and diversion block inside the hidden well ring, and then install the well cover. After the installation is completed, pave the road surface.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. Through the hidden well ring, diversion block, partition plate and flow channel and other structures, water droplets gradually gather in the flow channel under the action of gravity and fluid diodes to form water flow, and flush along the flow channel, realizing the effective collection and diversion of rainwater. At the same time, the application of fluid diodes enables the water flow to flow spontaneously in a specific direction, effectively avoiding sand accumulation and reducing maintenance costs.

[0040] 2. The reinforcing ribs, metal mesh and cleaning arm inside the manhole cover enhance the strength and durability of the manhole cover. The metal mesh can effectively filter sand and prevent it from entering the rainwater pipe in large quantities, while the automatic cleaning function of the cleaning arm prolongs the time for sand to enter the rainwater pipe and the interval between manual cleaning, preventing sand from entering the rainwater pipe in large quantities in a short period of time, while reducing the cleaning burden on the staff.

[0041] 3. The manhole cover also has good water permeability and is suitable for a variety of scenarios. Whether in urban roads, permeable pavements or green landscapes, it can effectively collect and discharge rainwater, effectively alleviating the problem of urban waterlogging while ensuring the beauty of the road surface.

[0042] 4. The manhole cover adopts the method of factory production and on-site assembly, which greatly shortens the construction period and improves the construction efficiency. At the same time, the tight fixation between the well seat and the structural well seat and the close fit between the hidden well ring and the well seat ensure the stability and safety of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 A schematic diagram of a sponge city permeable concrete hidden rainwater manhole cover structure;

[0045] Figure 2 for Figure 1 Enlarged view of part A;

[0046] Figure 3 It is a bottom view of a sponge city permeable concrete hidden rainwater manhole cover structure;

[0047] Figure 4 A schematic diagram of a sponge city permeable concrete hidden rainwater manhole cover flow channel structure;

[0048] Figure 5 A schematic diagram of the surface structure of a sponge city permeable concrete hidden rainwater manhole cover;

[0049] Figure 6 A schematic diagram of a sponge city permeable concrete hidden rainwater manhole cover structure B;

[0050] Figure 7 This is a schematic diagram of the installation of a sponge city permeable concrete hidden rainwater manhole cover;

[0051] Figure 8 It is a schematic diagram of the hole pulling structure;

[0052] In the figure: 1. well seat; 101. brick inspection well; 2. hidden well ring; 201. baffle; 202. communication port; 203. electrical channel; 3. upper well cover; 4. diverter block; 401. diverter block fixing column; 5. sealing strip; 6. partition plate; 7. flow channel; 701. fixing column; 8. rotating motor; 9. cleaning arm; 901. brush; 902. main rolling wheel; 903. auxiliary rolling wheel; 10. metal mesh; 11. reinforcing ribs; 12. cement mortar bonding layer; 13. permeable concrete layer; 14. opening slot, 1401. pulling hole; 1402. inclined slot; 15. ribbed plate. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0054] The application principle of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0055] Example 1

[0056] like Figure 1-7 As shown: a sponge city permeable concrete hidden rainwater manhole cover: comprising a manhole seat 1, the manhole seat 1 is matched with a hidden manhole ring 2, an upper manhole cover 3 is installed above the hidden manhole ring 2, and a groove is arranged in the center of the hidden manhole ring 2;

[0057] A diverter block 4 is provided on the surface of the groove, a partition plate 6 is detachably mounted on the upper surface of the hidden well ring 2, a flow channel 7 is formed between adjacent partition plates 6, and a baffle plate 201 is detachably mounted on the outermost flow channel 7.

[0058] The upper surface of the hidden well ring 2 is evenly provided with fixing columns 701, and the fixing columns 701 are fixed with the partition plate 6. The opening of the partition plate 6 is equipped with a baffle plate 201, and the two ends of the baffle plate 201 are respectively fixed or limited with the inner surface of the groove and the partition plate 6.

[0059] A diverter block fixing column 401 is arranged at the center of the upper surface of the hidden well ring 2 , and the diverter block fixing column 401 is detachably connected to the diverter block 4 .

[0060] The lower surface of the hidden well ring 2 is provided with reinforcing ribs 11, and a metal mesh 10 is installed on the lower surface of the hidden well ring 2. A rotating motor 8 is installed at the center of the lower surface of the hidden well ring 2, and the rotating motor 8 is connected to a plurality of cleaning arms 9. The hidden well ring 2 includes a ribbed plate 15, and the ribbed plate 15 is arranged in a ring shape along the inside of the hidden well ring 2. The metal mesh 10 and reinforcing ribs 11 are arranged at intervals in the horizontal direction, and the ribbed plate 15 and the reinforcing ribs 11 are fixedly connected.

[0061] A brush is installed on the side of the cleaning arm 9 close to the metal mesh 10, a main rolling wheel 902 is installed on the end of the cleaning arm 9 away from the rotating motor 8, and auxiliary rolling wheels 903 are installed on the upper and lower sides of the end of the cleaning arm 9 away from the rotating motor 8.

[0062] An electrical channel 203 is provided inside the hidden well ring 2, and the rotating motor 8 is electrically connected to an external power source through the electrical channel 203.

[0063] The well seat 1 is a finalized component, and includes two upper and lower tongues and grooves, which are respectively fixedly connected to the well seat 1 and the hidden well ring 2 through a cement mortar bonding layer 12. A solid baffle is provided in the middle of the well seat 1, and a sealing strip 5 is provided at the connection between the hidden well ring 2 and the well seat 1.

[0064] The interior of the groove arranged in the center of the hidden well ring 2 can be filled with materials such as asphalt, permeable concrete, pebbles, etc.

[0065] The edge of the hidden well ring 2 is provided with an open groove 14 , and the open groove 14 is evenly distributed along the edge of the hidden well ring 2 . The open groove 14 includes a pulling hole 1401 and an inclined groove 1402 .

[0066] Example 2

[0067] like Figure 1-7As shown: A construction method of a sponge city permeable concrete hidden rainwater manhole cover, comprising the following steps:

[0068] S1. According to the requirements of the drawings, brick inspection wells 101 of corresponding specifications and models are manufactured, and each inspection well is assembled according to the drawings;

[0069] S2. After the structural well of the rainwater inspection well is completed, the well seat 1 is tightly fixed to the structural well seat before the road base is constructed; the base is constructed to the outside of the upper tongue and groove of the well seat, at which time the lower tongue and groove is placed inside the road base, and manual tamping is used to ensure that the well seat is firmly fixed and does not slip;

[0070] Before the road surface construction, the hidden well ring 2 is placed inside the tongue and groove on the well seat 1, and the hidden well ring 2 and the well seat 1 are tightly fitted without looseness;

[0071] S3, a1: When used in landscape and greening projects, the concave part of the hidden well ring can be filled with pebbles and other materials; the concave part of the hidden well ring 2 should be constructed together, and the internal filling material of the hidden well ring 2 should be consistent with the material used on the main surface of the road. When paving, manual paving and mechanical compaction should be used to ensure the flatness of the road surface;

[0072] a2: When the rainwater well is entirely covered by the permeable concrete layer 13, first install the partition plate 6 and the diversion block 4 inside the hidden well ring 2, and then install the well cover 3. After the installation is completed, the road surface is paved.

[0073] When maintenance is needed, a crowbar or a steel bar hook can be passed through the upper pull ring 1401 of the hidden manhole ring 2, and the hidden manhole ring 2 can be separated by pulling it up, so as to carry out maintenance.

[0074] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sponge city permeable concrete hidden rainwater manhole cover, characterized by: It comprises a well seat (1), the well seat (1) is matched with a hidden well ring (2), an upper well cover (3) is installed above the hidden well ring (2), and a groove is arranged in the center of the hidden well ring (2); A flow dividing block (4) is arranged on the surface of the groove, a partition plate (6) is detachably mounted on the upper surface of the hidden well ring (2), flow channels (7) are formed between adjacent partition plates (6), and a baffle plate (201) is detachably mounted on the outermost flow channel (7).

2. The sponge city permeable concrete hidden rainwater manhole cover according to claim 1 is characterized by: The upper surface of the hidden well ring (2) is evenly provided with fixing columns (701), the fixing columns (701) are fixedly matched with the partition plate (6), the opening of the partition plate (6) is matched with a baffle plate (201), and the two ends of the baffle plate (201) are respectively fixedly set or limitedly set with the inner surface of the groove and the partition plate (6).

3. The sponge city permeable concrete hidden rainwater manhole cover according to claim 2 is characterized by: A diverter block fixing column (401) is arranged at the center of the upper surface of the hidden well ring (2), and the diverter block fixing column (401) is detachably connected to the diverter block (4).

4. The sponge city permeable concrete hidden rainwater manhole cover according to claim 1 is characterized by: The lower surface of the hidden well ring (2) is provided with reinforcing ribs (11), the lower surface of the hidden well ring (2) is installed with a metal mesh (10), a rotating motor (8) is installed at the center of the lower surface of the hidden well ring (2), and the rotating motor (8) is connected to a plurality of cleaning arms (9), the hidden well ring (2) includes a ribbed plate (15), the ribbed plate (15) is arranged in a ring shape along the inside of the hidden well ring (2), the metal mesh (10) and the reinforcing ribs (11) are arranged at intervals in the horizontal direction, and the ribbed plate (15) and the reinforcing ribs (11) are fixedly connected.

5. The sponge city permeable concrete hidden rainwater manhole cover according to claim 3 is characterized by: A brush is installed on the side of the cleaning arm (9) close to the metal mesh (10), a main rolling wheel (902) is installed on the end of the cleaning arm (9) away from the rotating motor (8), and auxiliary rolling wheels (903) are installed on the upper and lower sides of the end of the cleaning arm (9) away from the rotating motor (8).

6. The sponge city permeable concrete hidden rainwater manhole cover according to claim 3 is characterized by: An electrical channel (203) is provided inside the hidden well ring (2), and the rotating motor (8) is electrically connected to an external power source via the electrical channel (203).

7. The sponge city permeable concrete hidden rainwater manhole cover according to claim 1 is characterized by: The well seat (1) is a finalized finished component. The well seat (1) comprises two upper and lower tongues and grooves. The upper and lower tongues and grooves are respectively fixedly connected to the well seat (1) and the hidden well ring (2) through a cement mortar bonding layer (12). A solid baffle is provided in the middle of the well seat (1). A sealing strip (5) is provided at the connection between the hidden well ring (2) and the well seat (1). The interior of the groove provided in the center of the hidden well ring (2) can be filled with materials such as asphalt, permeable concrete, pebbles, etc.

8. The sponge city permeable concrete hidden rainwater manhole cover according to claim 1, characterized in that: The edge of the hidden well ring (2) is provided with an open groove (14), the open groove (14) is evenly distributed along the edge of the hidden well ring (2), and the open groove (14) includes a pulling hole (1401) and an inclined groove (1402).

9. A construction method for a sponge city permeable concrete hidden rainwater manhole cover, characterized in that: The following steps are involved: S1. Manufacture inspection wells of corresponding specifications and models according to the requirements of the drawings, and each inspection well is assembled according to the attached drawings; S2. After the structural well of the rainwater inspection well is completed, the well seat (1) is tightly fixed to the structural well seat before the road base is constructed; the base is constructed to the outside of the upper tongue and groove of the well seat, at which time the lower tongue and groove is placed inside the road base, and manual compaction is used to ensure that the well seat is firmly fixed and does not slip; Before the road surface is constructed, the hidden well ring (2) is placed inside the tongue and groove of the well seat (1), and the hidden well ring (2) and the well seat (1) are tightly fitted without looseness; S3, a1: When used in landscape and greening projects, the concave part of the hidden well ring can be filled with pebbles and other materials; the concave part of the hidden well ring should be constructed together, and the filling material inside the well ring should be consistent with the material used on the main surface of the road. When paving, manual paving and mechanical compaction should be used to ensure that the road surface is flat; a2: When the rainwater well is entirely covered by the road surface, first install the partition plate (6) and the diversion block (4) inside the hidden well ring (2), and then install the well cover (3). After the installation is completed, the road surface is paved.

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