Road surface rainwater collecting system

Abstract

The invention relates to the technical field of rainwater collection, in particular to a road surface rainwater collection system which comprises PP modules, side plates, lower water conservancy project cloth, upper water conservancy project cloth, tightening rings and limiting assemblies. The lower hydraulic fabric is laid in the foundation pit; the tank body is stacked on the lower hydraulic cloth; the lower hydraulic fabric is folded upwards and attached to the side plates; the upper water conservancy project cloth covers the top of the pool body, and is downwards folded and attached to the lower water conservancy project cloth on the vertical side wall of the pool body; the lower hydraulic cloth and the upper hydraulic cloth are hooped and sealed by the hooping ring, so that when a full water test is carried out, the lateral water pressure resistance of the side plate is improved, the side plate is prevented from laterally moving, and inaccurate test results caused by deformation of the side plate are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of rainwater collection, and particularly to a road surface rainwater collection system. Background Art

[0002] Road surface rainwater collection is a sustainable water resource management method that collects, stores, and utilizes road surface runoff rainwater through systematic technical means. The PP (polyethylene) module assembled pool is a newly emerging method for rainwater collection pools in recent years, mainly used for rainwater regulation, storage, and reuse in sponge city construction projects and rainwater comprehensive utilization projects. The PP module assembled pool is erected with PP modules as the framework of the pool according to the water storage capacity requirements.

[0003] Specifically, first, a cubic foundation pit is excavated at a preset location, and a waterproof composite geotextile is first laid in the cubic foundation pit. Then, several standard-sized PP modules are stacked and assembled on the composite geomembrane to form a cubic-shaped pool body, and side plates are fixedly installed on the side walls of the PP modules that act as the side walls of the cubic-shaped pool body. Then, a lifting well is installed at the upper end of the pool body. After that, the entire pool body is wrapped with a waterproof composite geotextile, tied to the pool body with tie straps, and polystyrene boards are laid as a waterproof layer and a retaining structure on the outside of the composite geotextile. Finally, the foundation pit is backfilled with soil to form an underground storage pool. According to the provisions of the "Code for Construction and Acceptance of Water Supply and Drainage Structures", the pool must be subjected to a full water test after construction, and there shall be no leakage.

[0004] However, the pool wall of the PP (polyethylene) module assembled pool is a flexible structure composed of composite geotextiles, etc. After the pool is filled with water, the lateral water pressure of the water body in the pool may cause the pool wall to be easily deformed and unstable, resulting in an unstable water level in the pool and inaccurate results of the full water test. Summary of the Invention

[0005] The present invention provides a road surface rainwater collection system to solve the above problems.

[0006] A road surface rainwater collection system of the present invention adopts the following technical solutions: A road surface rainwater collection system includes PP modules, side plates, a lower geotextile, an upper geotextile, a tightening ring, and a limiting component. There are multiple PP modules, which are stacked to form a cubic pool body; the pool body is arranged in a foundation pit.

[0007] There are four side plates, which are respectively fixed on the four vertical side walls of the pool body; the side plates are provided with limiting grooves with openings facing the foundation pit; the limiting grooves extend in the horizontal direction; the limiting grooves at the same height on the side plates of the four vertical side walls of the pool body enclose a rectangular ring groove; The lower geotextile is laid in the foundation pit; the pool body is stacked on the lower geotextile; the lower geotextile is turned up and attached to the side plates.

[0008] The upper waterproof cloth covers the top of the pool body and is folded downwards to adhere to the lower waterproof cloth at the vertical side wall of the pool body.

[0009] The tightening ring is a rectangular ring; the tightening ring is arranged in the limiting groove, and squeezes and fastens the lower waterproof cloth and the upper waterproof cloth at the limiting groove into the limiting groove; through the tightening and sealing of the lower waterproof cloth and the upper waterproof cloth by the tightening ring, when performing the full water test, the ability of the side plate to resist the lateral water pressure is improved, the lateral movement of the side plate is avoided, and the side plate is prevented from deforming, resulting in inaccurate test results.

[0010] The limiting component is used to limit the tightening ring in the limiting groove and make the lower waterproof cloth and the upper waterproof cloth squeezed into the limiting groove tightly abut against each other to prevent the water inside the pool body from flowing out or the muddy water outside from flowing in.

[0011] Further, the tightening ring includes right-angle parts and straight parts; there are four right-angle parts, and the right-angle parts are right-angled; there are multiple straight parts; the number and length of the straight parts are selected according to the size of the pool body; the right-angle parts and the straight parts are alternately arranged in sequence and are connected end to end to enclose a rectangular tightening ring; the adjacent right-angle parts and straight parts are fixedly connected by nuts and bolts.

[0012] Further, the two ends of the right-angle part are provided with first connection holes; one of the orifices of the first connection hole is hexagonal; the two ends of the straight part are provided with second connection holes; one of the orifices of the second connection hole is hexagonal, which is used to place the nut and limit the rotation of the nut.

[0013] Further, the side plate includes multiple sub-boards; the multiple sub-boards are arranged in an array to form a rectangular side plate; the sub-boards are provided with grooves extending in the horizontal direction; the grooves on the sub-boards at the same height form a limiting groove.

[0014] Further, the limiting component includes a sliding groove; the sliding groove is opened on the lower groove wall of the groove; the sliding groove is communicated with the groove; a limiting plate is slidably installed up and down in the sliding groove; a wedge-shaped block with a small end facing upwards is fixed at the upper end of the limiting plate; the side wall of the wedge-shaped block close to the pool body is set as a limiting wall; the limiting wall is vertically arranged; the side wall of the wedge-shaped block far from the pool body is set as a matching wall; the matching wall is inclined. An elastic structure is connected between the limiting plate and the sliding groove; the elastic structure is used to make the upper end of the wedge-shaped block abut against the upper groove wall of the groove.

[0015] Further, the elastic structure includes an elastic sheet; the elastic sheet is inclined up and down, the upper end is fixedly connected with the limiting plate, and the lower end is fixedly connected with the groove wall of the sliding groove.

[0016] Further, auxiliary columns are provided at the ends where two adjacent side plates approach each other; the auxiliary columns are vertically arranged rectangular columns; the lower ends of the auxiliary columns are fixed to the foundation pit; the four auxiliary columns and the four side plates enclose a rectangular cylinder; auxiliary grooves are provided on the auxiliary columns; the auxiliary grooves communicate with the limiting grooves; the auxiliary grooves and the fastening rings cooperate to fasten and seal the lower waterproof cloth and the upper waterproof cloth at the right angle.

[0017] Further, a rubber film is attached between the lower waterproof cloth and the upper waterproof cloth; the rubber film is located at the limiting groove. The fastening ring pushes against the mating wall of the wedge-shaped block, driving the wedge-shaped block to drive the limiting plate to move downward and retract into the sliding groove against the elastic force of the elastic piece, and pressing the lower waterproof cloth and the upper waterproof cloth into the limiting groove. When passing over the wedge-shaped block, the limiting plate drives the wedge-shaped block to move upward, and the upper end of the wedge-shaped block cooperates with the upper groove wall of the limiting groove to tightly press and seal the lower waterproof cloth and the upper waterproof cloth. The rubber film increases the friction between the lower waterproof cloth and the upper waterproof cloth, preventing relative sliding and generating gaps when the lower waterproof cloth or the upper waterproof cloth is pulled later.

[0018] Further, the vertical cross-section of the straight part of the fastening ring is circular.

[0019] Further, dovetail blocks are fixed on the side walls of the sub-plates close to the pool body; dovetail grooves are provided on the PP modules; the dovetail blocks are inserted into the dovetail grooves.

[0020] The beneficial effects of the present invention are as follows: the fastening ring squeezes and fastens the lower waterproof cloth and the upper waterproof cloth at the limiting groove into the limiting groove; through the fastening and sealing of the lower waterproof cloth and the upper waterproof cloth by the fastening ring, when performing the full water test, the ability of the side plate to resist the lateral water pressure is improved, avoiding lateral movement of the side plate and preventing the side plate from deforming and resulting in inaccurate test results.

[0021] Further, the limiting component restricts the fastening ring in the limiting groove and makes the lower waterproof cloth and the upper waterproof cloth pressed into the limiting groove closely contact each other, so as to prevent the water inside the pool from flowing out or the external muddy water from flowing in. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of an embodiment of a road surface rainwater collection system of the present invention; Figure 2 It is a schematic diagram of the PP module of an embodiment of a road surface rainwater collection system of the present invention; Figure 3Schematic diagram of the split plate of the side plate of an embodiment of a road surface rainwater collection system of the present invention; Figure 4 Side view of the split plate of the side plate of an embodiment of a road surface rainwater collection system of the present invention; Figure 5 For Figure 4 Cross-sectional view at A-A in Figure 6 Cross-sectional view of an embodiment of a road surface rainwater collection system of the present invention; Figure 7 For Figure 6 Enlarged view at B in Figure 8 Schematic diagram of the side plate and auxiliary column of an embodiment of a road surface rainwater collection system of the present invention; Figure 9 For Figure 8 Enlarged view at C in Figure 10 Schematic diagram of the auxiliary column and tightening hoop of an embodiment of a road surface rainwater collection system of the present invention; Figure 11 Schematic diagram of the straight part of the tightening hoop of an embodiment of a road surface rainwater collection system of the present invention; Figure 12 Schematic diagram of the straight part and right-angle part of the tightening hoop of an embodiment of a road surface rainwater collection system of the present invention.

[0024] In the figure: 100, PP module; 110, dovetail groove; 210, split plate; 211, dovetail block; 220, limiting groove; 300, auxiliary column; 400, lower water cloth; 500, upper water cloth; 600, tightening hoop; 610, right-angle part; 611, first connection hole; 620, straight part; 621, second connection hole; 710, sliding groove; 720, limiting plate; 730, wedge block; 731, limiting wall; 732, mating wall; 740, elastic sheet. Detailed implementation manners

[0025] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] An embodiment of a road surface rainwater collection system of the present invention, as Figures 1 to 12As shown in the figure, it includes a PP module 100, side plates, a bottom waterproof cloth 400, a top waterproof cloth 500, a tightening ring 600, and a limiting component. There are multiple PP modules 100, which are stacked to form a cubic pool body; the pool body is arranged in a foundation pit.

[0027] There are four side plates, which are respectively fixed on the four vertical side walls of the pool body; the side plates are provided with limiting grooves 220 with openings facing the foundation pit; the limiting grooves 220 extend in the horizontal direction; the limiting grooves 220 at the same height on the side plates of the four vertical side walls of the pool body enclose a rectangular ring groove; at the adjacent ends of the two adjacent side plates close to each other, auxiliary columns 300 are provided; the auxiliary columns 300 are vertically arranged rectangular columns; the lower ends of the auxiliary columns 300 are fixed to the foundation pit; the four auxiliary columns 300 and the four side plates enclose a rectangular cylinder; the auxiliary columns 300 are provided with auxiliary grooves; the auxiliary grooves are communicated with the limiting grooves 220; the auxiliary grooves and the tightening ring 600 cooperate to tightly seal the bottom waterproof cloth 400 and the top waterproof cloth 500 at the right angle. The side plates include multiple sub-plates 210; the multiple sub-plates 210 are arranged in an array to form a rectangular side plate; the sub-plates 210 are provided with grooves extending in the horizontal direction; the grooves on the sub-plates 210 at the same height form the limiting grooves 220. Dovetail blocks 211 are fixed on the side walls of the sub-plates 210 close to the pool body; dovetail grooves 110 are provided on the PP module 100; the dovetail blocks 211 are inserted into the dovetail grooves 110.

[0028] The bottom waterproof cloth 400 is laid in the foundation pit; the pool body is stacked on the bottom waterproof cloth 400; the bottom waterproof cloth 400 is turned up and attached to the side plates. The top waterproof cloth 500 covers the top of the pool body and is turned down and attached to the bottom waterproof cloth 400 at the vertical side walls of the pool body.

[0029] The tightening ring 600 is a rectangular ring; the tightening ring 600 is arranged in the limiting groove 220, and squeezes and fastens the downstream waterproof cloth 400 and the upstream waterproof cloth 500 at the limiting groove 220 into the limiting groove 220; through the tightening and sealing of the downstream waterproof cloth 400 and the upstream waterproof cloth 500 by the tightening ring 600, when performing the full water test, the ability of the side plate to resist the lateral water pressure is improved, the lateral movement of the side plate is avoided, and the side plate is prevented from deforming and causing inaccurate test results. The tightening ring 600 includes a right-angle part 610 and a straight part 620; there are four right-angle parts 610, and the right-angle part 610 is in a right-angle shape; there are multiple straight parts 620; the number and length of the straight parts 620 are selected according to the size of the pool body; the right-angle part 610 and the straight part 620 are alternately arranged in sequence and are connected end to end to enclose a rectangular tightening ring 600 in a circle; the adjacent right-angle part 610 and straight part 620 are fixedly connected by nuts and bolts. The vertical cross-section of the straight part 620 of the tightening ring 600 is circular. The two ends of the right-angle part 610 are provided with first connection holes 611; one of the orifices of the first connection hole 611 is hexagonal; the two ends of the straight part 620 are provided with second connection holes 621; one of the orifices of the second connection hole 621 is hexagonal, which is used for placing a nut and restricting the rotation of the nut.

[0030] The limiting component is used to limit the tightening ring 600 in the limiting groove 220, and make the downstream waterproof cloth 400 and the upstream waterproof cloth 500 squeezed into the limiting groove 220 tightly abut against each other to prevent the water inside the pool body from flowing out or the external muddy water from flowing in. The limiting component includes a sliding groove 710; the sliding groove 710 is opened on the lower groove wall of the groove; the sliding groove 710 communicates with the groove; a limiting plate 720 is slidably installed up and down in the sliding groove 710; a wedge-shaped block 730 with a small end facing up is fixed at the upper end of the limiting plate 720; the side wall of the wedge-shaped block 730 close to the pool body is set as a limiting wall 731; the limiting wall 731 is vertically arranged; the side wall of the wedge-shaped block 730 away from the pool body is set as a matching wall 732; the matching wall 732 is inclined; an elastic structure is connected between the limiting plate 720 and the sliding groove 710; the elastic structure is used to make the upper end of the wedge-shaped block 730 abut against the upper groove wall of the groove. The elastic structure includes an elastic piece 740; the elastic piece 740 is inclined up and down, the upper end is fixedly connected with the limiting plate 720, and the lower end is fixedly connected with the groove wall of the sliding groove 710.

[0031] In this embodiment, a rubber membrane is attached between the lower water-proof cloth 400 and the upper water-proof cloth 500; the rubber membrane is located at the limiting groove 220. The tightening ring 600 pushes against the mating wall 732 of the wedge block 730, driving the wedge block 730 to drive the limiting plate 720 to move downward and retract into the sliding groove 710 against the elastic force of the elastic piece 740, and pressing the lower water-proof cloth 400 and the upper water-proof cloth 500 into the limiting groove 220. When passing over the wedge block 730, the limiting plate 720 drives the wedge block 730 to move upward, and the upper end of the wedge block 730 cooperates with the upper groove wall of the limiting groove 220 to tightly press and seal the lower water-proof cloth 400 and the upper water-proof cloth 500. The rubber membrane increases the friction between the lower water-proof cloth 400 and the upper water-proof cloth 500, preventing relative sliding and generating gaps when the lower water-proof cloth 400 or the upper water-proof cloth 500 is pulled subsequently.

[0032] Combined with the above embodiments, the working principle and process of the present invention are as follows: First, a layer of lower water-proof cloth 400 is laid in the foundation pit. Then, the PP modules 100 are stacked into a cubic pool body on the lower water-proof cloth 400, and four side plates are respectively fixed on the four vertical side walls of the pool body. The auxiliary columns 300 are placed at one end where two adjacent side plates are close to each other, so that the four auxiliary columns 300 and the four side plates enclose a rectangular cylinder, and the lower ends of the auxiliary columns 300 are driven into the bottom wall of the foundation pit for fixation. An operator can select a temporary long rod with a cross-sectional width greater than or equal to the depth of the limiting groove 220 and push the lower water-proof cloth 400 upward from bottom to top, and then fold the lower water-proof cloth 400 upward and attach it to the side plate.

[0033] When the temporary long rod moves to the limiting groove 220, the temporary long rod pushes against the mating wall 732 of the wedge block 730, driving the wedge block 730 to drive the limiting plate 720 to move downward and retract into the sliding groove 710 against the elastic force of the elastic piece 740, and pressing the lower water-proof cloth 400 into the limiting groove 220. Then, the temporary long rod is pulled out of the limiting groove 220, and the elastic piece 740 drives the limiting plate 720 to drive the wedge block 730 to move upward. The upper end of the wedge block 730 cooperates with the upper groove wall of the limiting groove 220 to tightly press the lower water-proof cloth 400 against the upper groove wall of the limiting groove 220. Subsequently, the temporary long rod is pulled out of the limiting groove 220; then, the above temporary long rod is used to push the upper water-proof cloth 500 downward from top to bottom, so that the upper water-proof cloth 500 is folded downward and attached to the lower water-proof cloth 400 at the vertical side wall of the pool body. When the temporary long rod moves to the limiting groove 220 again, the temporary long rod pushes against the mating wall 732 of the wedge block 730, driving the wedge block 730 to drive the limiting plate 720 to move downward and retract into the sliding groove 710 against the elastic force of the elastic piece 740, and pressing the upper water-proof cloth 500 into the limiting groove 220 as well. Subsequently, after the temporary long rod is pulled out of the limiting groove 220 again, the straight part 620 and the right-angle part 610 of the tightening ring 600 are inserted into the limiting groove 220.

[0034] When the straight part 620 of the tightening ring 600 crosses the wedge block 730, the limit plate 720 drives the wedge block 730 to move upward. The upper end of the wedge block 730 cooperates with the upper groove wall of the limit groove 220 to tightly press and seal the lower waterproof cloth 400 and the upper waterproof cloth 500 to the upper groove wall of the limit groove 220. The straight part 620 of the tightening ring 600 abuts against the limit wall 731 of the wedge block 730. Before pressing the straight part 620 of the tightening ring 600 into the limit groove 220, a nut or a bolt needs to be placed in the hexagonal orifice of the corresponding second connection hole 621 in advance. Similarly, the right-angle part 610 of the tightening ring 600 is snapped into the limit groove 220, and the straight part 620 and the right-angle part 610 of the tightening ring 600 are firmly connected into a ring-shaped tightening ring 600 through bolts and nuts. Through the tightening and sealing of the lower waterproof cloth 400 and the upper waterproof cloth 500 by the tightening ring 600, when the full water test is carried out, the ability of the side plate to resist the lateral water pressure is improved, the lateral movement of the side plate is avoided, and the side plate is prevented from deforming, resulting in inaccurate test results. After that, after installing the lifting well, a protection plate is laid on the outside of the upper waterproof cloth 500, and the foundation pit is backfilled with earthwork.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A road surface rainwater collection system, characterized in that: Including: A plurality of PP modules, which form a cuboid stacking pool body; the pool body is arranged in a foundation pit; Four side plates, which are respectively fixed on the four vertical side walls of the pool body; the side plates are provided with limiting grooves with openings facing the foundation pit; the limiting grooves extend in the horizontal direction; the limiting grooves at the same height on the side plates of the four vertical side walls of the pool body enclose a rectangular ring groove; A lower geotextile is laid in the foundation pit; the pool body is stacked on the lower geotextile; the lower geotextile is folded upwards and attached to the side plates; An upper geotextile covers the top of the pool body and is folded downwards and attached to the lower geotextile at the vertical side wall of the pool body; A tightening ring, which is a rectangular ring; the tightening ring is arranged in the limiting groove and squeezes and fastens the lower geotextile and the upper geotextile at the limiting groove into the limiting groove; A limiting component is used to limit the tightening ring in the limiting groove and make the lower geotextile and the upper geotextile squeezed into the limiting groove closely abut against each other.

2. The pavement rainwater collection system according to claim 1, characterized in that: The tightening ring includes right-angle parts and straight parts; there are four right-angle parts, and the right-angle parts are right-angled; there are a plurality of straight parts; the right-angle parts and the straight parts are alternately arranged in sequence and enclose a rectangular tightening ring by connecting head to tail; adjacent right-angle parts and straight parts are fixedly connected by nuts and bolts.

3. The pavement rainwater collection system according to claim 2, wherein: Both ends of the right-angle part are provided with first connection holes; one of the orifices of the first connection hole is hexagonal; both ends of the straight part are provided with second connection holes; one of the orifices of the second connection hole is hexagonal.

4. The pavement rainwater collection system according to claim 3, characterized in that: The side plate includes a plurality of sub-plates; the plurality of sub-plates are arranged in an array to form a rectangular side plate; the sub-plates are provided with grooves extending in the horizontal direction; the grooves on the sub-plates at the same height form a limiting groove.

5. The pavement rainwater collection system according to claim 4, characterized in that: The limiting component includes a sliding groove; the sliding groove is opened on the lower groove wall of the groove; the sliding groove is communicated with the groove; a limiting plate is slidably installed up and down in the sliding groove; a wedge block with a small end facing upwards is fixed at the upper end of the limiting plate; the side wall of the wedge block close to the pool body is set as a limiting wall; the limiting wall is vertically arranged; the side wall of the wedge block far from the pool body is set as a matching wall; the matching wall is inclined; An elastic structure is connected between the limiting plate and the sliding groove; the elastic structure is used to make the upper end of the wedge block abut against the upper groove wall of the groove.

6. The pavement rainwater collection system according to claim 5, characterized in that: The elastic structure includes an elastic sheet; the elastic sheet is inclined up and down, the upper end is fixedly connected with the limiting plate, and the lower end is fixedly connected with the groove wall of the sliding groove.

7. The pavement rainwater collection system according to claim 6, characterized in that: Auxiliary columns are provided at the mutually close ends of adjacent two side plates; the auxiliary columns are vertically arranged rectangular columns; the lower ends of the auxiliary columns are fixed to the foundation pit; the four auxiliary columns and the four side plates enclose a rectangular cylinder; auxiliary grooves are provided on the auxiliary columns; the auxiliary grooves are communicated with the limiting grooves.

8. A road surface rainwater collection system according to claim 7, characterized in that: A rubber film is attached between the lower geotextile and the upper geotextile; the rubber film is located at the limiting groove.

9. The pavement rainwater collection system according to claim 1, characterized in that: The vertical cross-section of the straight part of the tightening ring is circular.

10. A road surface rainwater collection system according to claim 4, characterized in that: Dovetail blocks are fixed on the side walls of the sub-plates close to the pool body; dovetail grooves are provided on the PP modules; the dovetail blocks are inserted into the dovetail grooves.

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