Construction site water recycling system and method

By designing a water recycling system consisting of collection ditches, sedimentation tanks, and storage tanks at the construction site, the problem of water waste at the construction site was solved, and efficient collection and reuse of water resources were achieved, reducing water usage pressure and improving water quality.

CN117005443BActive Publication Date: 2026-05-19CCCC THIRD HIGHWAY ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CCCC THIRD HIGHWAY ENG CO LTD
Filing Date
2023-08-02
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Water resources are being wasted at the construction site due to a lack of effective recycling facilities, resulting in large amounts of wastewater and rainwater being discharged directly into the municipal pipe network without being utilized.

Method used

Design a construction site water recycling system, including a collection device, a treatment device, and a water use device. It consists of a water collection ditch, a foundation pit dewatering drainage channel, a sedimentation tank, a water storage pit, and a water storage tank, etc., to realize the collection, filtration, and reuse of various types of water at the construction site.

Benefits of technology

This approach enables the rational collection and reuse of water resources at the construction site, reducing water waste, alleviating water usage pressure, improving water quality, and avoiding the problem of cluttered ground.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a construction site water recycling system, comprising: a collecting device, which comprises: a water collecting ditch, which is arranged around a construction area; a plurality of foundation pit dewatering drainage channels, which are all connected with the water collecting ditch and a foundation pit at the construction area; a domestic water drainage ditch, which is connected with the water collecting ditch and a living area; a treatment device, which comprises: a sedimentation tank, which is connected with the water collecting ditch at an inlet end; a water storage pit, which is internally provided with a filter structure, the filter structure being connected with an outlet end of the sedimentation tank; a water using device, which comprises: a plurality of water storage tanks, which are distributed in the construction area; and a domestic water pipeline, which is connected with the water storage pit and the living area. The application can reasonably collect and recycle various water at a construction site, and effectively avoid waste of water resources.
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Description

Technical Field

[0001] This invention relates to the field of water recycling technology, specifically to a water recycling system and method for construction sites. Background Technology

[0002] Water is a precious gift from nature to humankind. With the increasing scarcity of water resources and growing environmental awareness, water recycling and reuse have become an international trend. Construction processes consume large amounts of tap water, and due to the lack of corresponding water recycling facilities at construction sites, wastewater, rainwater, and groundwater from foundation pits are directly discharged into underground municipal pipe networks without effective utilization. Therefore, designing a construction site water recycling system to rationally collect and reuse various types of water at construction sites will greatly reduce water usage pressure. Summary of the Invention

[0003] This invention provides a construction site water recycling system, which, through a collection device, a treatment device, and a water-using device connected in sequence, realizes the rational collection and reuse of various types of water at the construction site, effectively avoiding the waste of water resources.

[0004] To achieve these and other advantages according to the present invention, a construction site water recycling system is provided, comprising:

[0005] Collection device, comprising:

[0006] A drainage ditch is constructed around the construction area.

[0007] Multiple drainage channels for foundation pit dewatering are connected to the aforementioned drainage ditch and the foundation pit in the construction area;

[0008] A domestic water drainage ditch, which connects the water collection ditch to the living area;

[0009] Processing apparatus, comprising:

[0010] A sedimentation tank, the inlet of which is connected to the water collection ditch;

[0011] A water storage pit, which is equipped with a filtration structure inside, and the filtration structure is connected to the outlet of the sedimentation tank;

[0012] Water supply device, comprising:

[0013] Multiple water storage tanks are distributed throughout the construction area;

[0014] A domestic water pipe connects the water storage pit and the living area.

[0015] Preferably, in the construction site water recycling system, the living area includes a cleaning pool located in a low-lying area. The cleaning pool is connected to the water collection ditch through the domestic water drainage ditch and to the municipal pipe network through a drainage pipe. Sealing plates can be detachably installed at the connection between the cleaning pool and the domestic water drainage ditch, and at the connection between the cleaning pool and the drainage pipe.

[0016] Preferably, in the construction site water recycling system, the filtration structure includes a filter tank with an open top, which is inserted into the water storage pit. A placement groove is provided on the top side wall of the filter tank, and multiple filter holes are provided on the side wall of the placement groove. A filter layer is inserted into the placement groove, and the placement groove is located above the water surface in the water storage pit.

[0017] Preferably, in the construction site water recycling system, the water-using device further includes: multiple support frames distributed in the construction area, multiple water storage tanks placed on the support frames, multiple casters at the bottom of the support frames, and multiple positioning pins inserted into the ground of the construction area around the support frames.

[0018] Preferably, in the aforementioned construction site water recycling system, the support frame includes:

[0019] A support platform, which is located between multiple locating pins and has the aforementioned casters at its bottom;

[0020] A pair of U-shaped vertical limiting slides are provided on the support platform. Multiple pairs of support holes are provided on the opposite side walls of the pair of limiting slides. Each support hole is provided with a telescopic support structure. A support rod is provided on the top of the pair of limiting slides, and a steering pulley is rotatably provided on the support rod.

[0021] Multiple horizontal first support plates are placed on each pair of support structures. Each first support plate has multiple strands of connecting ropes detachably installed on its edge. Each connecting rope is connected to one end of a suspension rope, and the other end of the suspension rope passes through the groove of the steering pulley and is connected to the winding wheel.

[0022] Preferably, in the construction site water recycling system, the support structure includes: a second support plate, the bottom of which is hinged to a limiting groove at the edge of the support hole; movable plates perpendicular to the second support plate are provided on both sides of the second support plate; a hook plate is provided at the end of the movable plate away from the second support plate; the limiting groove at the edge of the support hole is located between the hook plate and the second support plate; and the first support plate is placed on top of the second support plate.

[0023] Preferably, in the construction site water recycling system, the support structure further includes: a limiting plate, which is disposed on opposite sides of a pair of limiting grooves, a first spring is disposed between the limiting plate and the second support plate, a wire hole is disposed on the limiting plate, a pull rope is disposed on the top of the second support plate, and the free end of the pull rope passes through the wire hole and is detachably connected to the positioning ring on the limiting groove.

[0024] Preferably, in the construction site water recycling system, the first support plate is rotatably equipped with multiple rotating shafts perpendicular to the limiting slide groove, the rear end of the first support plate is provided with a vertical rear baffle, the front end of the first support plate is provided with a storage box, the top wall of the storage box is provided with an opening, a vertical front baffle is provided inside the storage box at the position corresponding to the opening, a horizontal connecting plate is provided at the bottom of the front baffle, multiple second springs are provided at the bottom of the connecting plate, and the water storage tank is located between the front baffle and the rear baffle.

[0025] Preferably, in the construction site water recycling system, a horizontal moving hole is provided on the top wall of the collection box, and a positioning plate is moved and inserted into the moving hole to open or block the opening. A support ring is provided on the outer wall of the collection box, and a moving track is provided in the middle of the positioning plate. A portion of the support ring at the same height as the moving hole is moved and inserted into the moving track.

[0026] The present invention also provides a water recycling method using a construction site water recycling system, comprising the following steps:

[0027] Water collection: In the early stage of construction, water in the foundation pit flows into the water collection ditch through the foundation pit dewatering drainage channel; in the middle and later stages of construction, construction wastewater in the construction area flows into the water collection ditch through the foundation pit dewatering drainage channel; throughout the construction period, domestic wastewater in the living area flows into the water collection ditch through the domestic water drainage ditch, while the water collection ditch collects rainwater from all directions, and then the water in the water collection ditch flows into the sedimentation tank.

[0028] Filtration: The clear water after sedimentation in the sedimentation tank flows to the filtration structure for filtration and then flows to the storage pit for storage;

[0029] Usage: Fill the water in the water storage pit into each water storage tank, and transport the full water storage tank to an appropriate location in the construction area for construction use. At the same time, the water in the water storage pit is transported to the living area through domestic water pipes for construction workers to use.

[0030] The present invention has at least the following beneficial effects: By constructing a water collection ditch around the construction area, and setting up multiple drainage channels to connect the water collection ditch with the foundation pit in the construction area, setting up a domestic water drainage ditch to connect the water collection ditch with the living area, setting up a sedimentation tank connected to the water collection ditch, and setting up a water storage pit connected to the sedimentation tank, the present invention collects, filters, removes impurities from the foundation pit water, construction wastewater, domestic wastewater and rainwater in the construction area, and stores them. Then, the water stored in the water storage pit is transferred to an appropriate location in the construction area for construction use through multiple water storage tanks, and is transported to the living area for construction workers' daily use through domestic water pipelines. This invention achieves the rational collection and reuse of various waters at the construction site, avoids the waste of water resources, and greatly reduces the water pressure in my country.

[0031] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a construction site water recycling system according to one of the technical solutions of the present invention;

[0033] Figure 2 This is a schematic diagram showing the positional relationship between the filter tank and the placement tank in one of the technical solutions of the present invention;

[0034] Figure 3 This is a schematic diagram of the support frame structure in one of the technical solutions of the present invention;

[0035] Figure 4 This is a front view schematic diagram of the connection relationship between the support structure and the support hole in one of the technical solutions of the present invention;

[0036] Figure 5 This is a side view of the support structure in one of the technical solutions of the present invention;

[0037] Figure 6 This is a schematic diagram of the first support plate structure in one of the technical solutions of the present invention;

[0038] Figure 7 This is a schematic diagram of the storage box structure in one of the technical solutions of the present invention;

[0039] Among them, 1-construction area, 2-foundation pit, 3-support frame, 4-foundation pit dewatering and drainage channel, 5-collection ditch, 6-domestic water drainage ditch, 7-living area, 8-cleaning pool, 9-domestic water pipe, 10-drainage pipe, 11-storage pit, 12-filtration structure, 13-sedimentation tank, 14-placement trough, 15-support platform, 16-positioning pin, 17-first support plate, 18-limiting plate, 19-pull rope, 20-water storage tank, 21-connection 22-Hanging rope, 23-Steering pulley, 24-Support rod, 25-Limiting groove, 26-Moving wheel, 27-Hook plate, 28-Second support plate, 29-Support hole, 30-Threading hole, 31-Moving plate, 32-First spring, 33-Rotating shaft, 34-Rear baffle, 35-Storage box, 36-Front baffle, 37-Support ring, 38-Positioning plate, 39-Moving track, 40-Opening, 41-Second spring, 42-Connecting plate. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0041] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0042] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials mentioned are commercially available. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0043] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides a construction site water recycling system, comprising:

[0044] Collection device, comprising:

[0045] Drainage ditch 5 is enclosed around construction area 1;

[0046] Multiple drainage channels 4 for foundation pit dewatering are connected to the drainage ditch 5 and the foundation pit 2 in the construction area 1;

[0047] Domestic water drainage ditch 6 connects the water collection ditch 5 to the living area 7;

[0048] Processing apparatus, comprising:

[0049] Sedimentation tank 13, the water inlet of which is connected to the water collection ditch 5;

[0050] The water storage pit 11 is equipped with a filter structure 12 inside, and the filter structure 12 is connected to the water outlet of the sedimentation tank 13.

[0051] Water supply device, comprising:

[0052] Multiple water storage tanks, numbering 20, are distributed within construction area 1;

[0053] Domestic water pipe 9 connects the water storage pit 11 and the living area 7.

[0054] The construction site water recycling system provided by this technical solution mainly consists of a water collection device, a water treatment device for filtering and storing water, and a water use device for transferring, storing, and using water. The collection device includes a water collection ditch 5 surrounding the construction area, multiple pit dewatering drainage channels 4 connecting the water collection ditch 5 to the foundation pit 2 in construction area 1, and a domestic water drainage ditch 6 connecting the water collection ditch 5 to the living area 7. The pit dewatering drainage channels 4 are excavated from the bottom of the foundation pit 2, or, after the foundation pit 2 is filled in, can be re-excavated from the construction surface of construction area 1 to connect with the water collection ditch 5. To facilitate water collection, the water collection ditch 5 is excavated in a low-lying area and is lower than the pit dewatering drainage channels 4 and the domestic water drainage ditch 6. The treatment device includes a water inlet and a water collection... The sedimentation tank 13 connected to the ditch 5 and the water storage pit 11 with the internal filter structure 12 are connected to the outlet of the sedimentation tank 13. The water in the foundation pit 2 and the domestic water are first collected in the water collection ditch 5, and then successively sedimented and removed impurities in the sedimentation tank 13 and filtered by the filter structure 12 before flowing to the water storage pit 11 for storage. The water supply device includes multiple water storage tanks 20 distributed in the construction area 1 and domestic water pipes 9 connecting the water storage pit 11 and the living area 7. After the water storage tanks 20 are filled with water near the water storage pit 11, they are transported to an appropriate location in the construction area 1 for construction use, avoiding the need to lay out water pipe networks and causing ground clutter. The domestic water pipes 9 transport the water in the water storage pit 11 to the living area 7 for construction workers to use for washing vehicles, toilets, irrigation, etc.

[0055] The water recycling process of the construction site water recycling system provided by this technical solution is as follows: the water stored in the foundation pit 2 or construction area 1 flows into the collection ditch 5 through the foundation pit dewatering drainage channel 4. At the same time, the wastewater in the living area 7 flows to the collection ditch 5 through the domestic water drainage ditch 6. The water collected in the collection ditch 5 then passes through the sedimentation tank 13 for sedimentation and the filtration structure 12 for filtration and is stored in the water storage pit 11. It is then transferred to an appropriate location in the construction area 1 through the water storage tank 20 for construction use or transported to the living area 7 through the domestic water pipeline 9 for construction workers to use for washing vehicles, toilets, irrigation, and other daily needs.

[0056] This invention includes at least the following beneficial effects: By constructing a water collection ditch 5 around the construction area 1, and setting up multiple foundation pit dewatering and drainage channels 4 to connect the water collection ditch 5 to the foundation pit 2 of the construction area 1, setting up a domestic water drainage ditch 6 to connect the water collection ditch 5 to the living area 7, setting up a sedimentation tank 13 connected to the water collection ditch 5, and setting up a water storage pit 11 connected to the sedimentation tank 13, the invention collects, filters, removes impurities from, and stores the water stored in the foundation pit 2, construction wastewater, domestic wastewater from the living area 7, and rainwater in the construction area 1. The water stored in the water storage pit 11 is then transferred to a suitable location in the construction area 1 for construction use through multiple water storage tanks 20, and transported to the living area through domestic water pipes 9. This invention provides water for the living needs of construction workers, enabling the rational collection and reuse of various types of water at the construction site, avoiding water waste and significantly reducing water pressure in my country. The water storage pit 11 is equipped with a filter structure 12, allowing water from the sedimentation tank 13 to pass through the filter structure 12 before flowing into the water storage pit 11, thus performing secondary filtration and improving the water quality. Multiple water storage tanks 20 are distributed within the construction area 1, allowing for flexible placement. After being filled near the water storage pit 11, the water tanks 20 are transported to appropriate locations within the construction area 1 for use during construction, avoiding the clutter caused by laying out water pipe networks between the water storage pit 11 and the construction area 1.

[0057] In another technical solution, such as Figure 1As shown, in the construction site water recycling system, the living area 7 includes a cleaning pool 8 located in a low-lying area. The cleaning pool 8 is connected to the water collection ditch 5 via the domestic water drainage ditch 6 and to the municipal water supply network via a drain pipe 10. Sealing plates are detachably installed at the connection points between the cleaning pool 8 and the domestic water drainage ditch 6, and between the cleaning pool 8 and the drain pipe 10. The cleaning pool 8 is located in a low-lying area to collect water, preventing the entire living area 7 from being wetted during non-rainy days. Depending on the quality of the wastewater in the cleaning pool 8, one of the sealing plates can be opened. If the water in the cleaning pool 8 is rainwater and does not contain chemical reagents, the sealing plate at the connection point between the cleaning pool 8 and the domestic water drainage ditch 6 can be opened to allow the water to flow into the water collection ditch 5. If the water in the cleaning pool contains excessive chemical reagents, the sealing plate at the connection point between the cleaning pool and the drain pipe 10 can be opened to allow the water to flow into the municipal water supply network for treatment, ensuring the quality of the water used.

[0058] In another technical solution, such as Figure 1 , Figure 2 As shown, in the construction site water recycling system, the filter structure 12 includes a filter tank with an open top, which is inserted into the water storage pit 11. A placement groove 14 is provided on the top side wall of the filter tank, and multiple filter holes are provided on the side wall of the placement groove 14. A filter layer is inserted into the placement groove 14, and the placement groove 14 is positioned above the water level in the water storage pit 11. Water from the sedimentation tank 13 first flows into the filter tank, is filtered by the filter layer, and then flows into the water storage pit 11. The bottom of the filter tank can be used to hold impurities intercepted by the filter layer. When there are too many impurities in the filter tank, the filter tank can be removed from the water storage pit 11 for cleaning. The filter layer, which can be filter cotton, can be replaced periodically by inserting it into the placement groove 14.

[0059] In another technical solution, such as Figure 1 , Figure 3 As shown, in the construction site water recycling system, the water-using device further includes: multiple support frames 3 distributed within the construction area 1; multiple water storage tanks 20 are placed on the support frames 3; multiple casters 26 are provided at the bottom of the support frames 3; and multiple positioning pins 16 inserted into the ground of the construction area 1 surround the support frames 3. The support frames 3 are used to stack and support multiple water storage tanks 20, reducing the area occupied on the ground; the casters 26 facilitate the movement of the support frames 3; and the positioning pins 16 prevent the support frames 3 from moving erratically.

[0060] In another technical solution, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, in the construction site water recycling system, the support frame 3 includes:

[0061] A support platform 15 is located among a plurality of positioning pins 16 and has the aforementioned casters 26 at its bottom;

[0062] A pair of U-shaped vertical limiting slide grooves 25 are provided on the support platform 15. Multiple pairs of support holes 29 are provided on the opposite side walls of the pair of limiting slide grooves 25. Each support hole 29 is provided with a telescopic support structure. A support rod 24 is provided on the top of the pair of limiting slide grooves 25. A steering pulley 23 is rotatably provided on the support rod 24.

[0063] Multiple horizontal first support plates 17 are placed on each pair of support structures. Each first support plate 17 has multiple strands of connecting rope 21 detachably installed on its edge. Each connecting rope 21 is connected to one end of a suspension rope 22. The other end of the suspension rope 22 passes through the groove of the steering pulley 23 and is connected to the winding wheel. Rotating the winding wheel causes the lifting rope 22 to wind around the winding wheel. At the same time, the lifting rope 22 pulls the connecting rope 21 and the first support plate 17 upward along the limiting groove 25. When the first support plate 17 moves to the support structure, it compresses the support structure to allow the first support plate 17 to move upward and make way. When the position of the first support plate 17 is higher than the support structure, the support structure extends, and the winding wheel rotates in the opposite direction to place the first support plate 17 on the support structure. Similarly, after the multi-strand connecting rope 21 is detachably connected to the edges of other first support plates 17, it is pulled up and down by the lifting rope 22 to complete the placement of the corresponding first support plate 17. The U-shaped limiting groove 25 can prevent the first support plate 17 from swaying in the horizontal direction. The connecting rope 21 can be detachably connected to the connecting ring on the first support plate 17 through a hook and locking structure.

[0064] In another technical solution, such as Figure 3 , Figure 4 , Figure 5 As shown, in the construction site water recycling system, the support structure includes: a second support plate 28, the bottom of which is hinged to the limiting groove 25 at the edge of the support hole 29; movable plates 31 perpendicular to the second support plate 28 are provided on both sides of the second support plate 28; a hook plate 27 is provided at the end of the movable plate 31 away from the second support plate 28; the limiting groove 25 at the edge of the support hole 29 is located between the hook plate 27 and the second support plate 28; and the first support plate 17 is placed on the top of the second support plate 28. Under the constraint of the hook plate 27 and the limiting slide groove 25, the second support plate 28 can rotate a certain angle, preferably an acute angle, around its hinge point with the limiting slide groove 25 in a direction away from the hook plate 27, so that the second support plate 28 supports the first support plate 17; when the second support plate 28 rotates around its hinge point with the limiting slide groove 25 towards the hook plate 27, the second support plate 28 can be housed in the support hole 29 to make way for the first support plate 17 to move up and down; the hook plate 27 is used to prevent the second support plate 28 from rotating excessively.

[0065] In another technical solution, such as Figure 3 , Figure 4 , Figure 5 As shown, in the construction site water recycling system, the support structure further includes: a limiting plate 18, which is disposed opposite to a pair of limiting grooves 25; a first spring 32 is disposed between the limiting plate 18 and the second support plate 28; a threading hole 30 is provided on the limiting plate 18; and a pull rope 19 is provided on the top of the second support plate 28. The free end of the pull rope 19 passes through the threading hole 30 and is detachably connected to the positioning ring on the limiting groove 25. The limiting plate 18 and the first spring 32 prevent the second support plate 28 from rotating excessively. The first spring 32 provides the second support plate 28 with an extending elastic force, and the pull rope 19 provides the second support plate 28 with a contracting force, causing the second support plate 28 to be housed in the support hole 29.

[0066] In another technical solution, such as Figure 3 , Figure 6 , Figure 7 As shown, in the construction site water recycling system, a plurality of rotating shafts 33 perpendicular to the limiting slide groove 25 are rotatably arranged on the first support plate 17. A vertical rear baffle 34 is provided at the rear end of the first support plate 17. A storage box 35 is provided at the front end of the first support plate 17. An opening 40 is provided on the top wall of part of the storage box 35. A vertical front baffle 36 is provided at the position corresponding to the opening 40 inside the storage box 35. A horizontal connecting plate 42 is provided at the bottom of the front baffle 36. A plurality of second springs 41 are provided at the bottom of the connecting plate 42. The water storage tank 20 is located between the front baffle 36 and the rear baffle 34. The top of the storage box 35 is not higher than the upper surface of the first support plate 17. The pivot 33 facilitates the movement of the water tank 20 on the first support plate 17 for loading and unloading. The front baffle 36 and the rear baffle 34 prevent the water tank 20 from moving away from the first support plate 17 at will. The second spring 41 extends to lift the front baffle 36 out of the opening 40 on the top wall of the storage box 35, restricting the position of the water tank 20. The retraction of the second spring 41 allows the front baffle 36 to be stored in the storage box 35. Pushing the water tank 20 backward or forward can move the water tank 20 onto or away from the first support plate 17. The width of the connecting plate 42 is greater than the width of the opening 40 to prevent the front baffle 36 from moving too far upward and detaching from the storage box 35.

[0067] In another technical solution, such as Figure 7As shown, in the construction site water recycling system, a horizontal moving hole is provided on the top wall of the collection box 35. A positioning plate 38 is movably inserted into the moving hole to open or block the opening 40. A support ring 37 is provided on the outer wall of the collection box 35. A moving track 39 is provided in the middle of the positioning plate 38. The portion of the support ring 37 at the same height as the moving hole is movably inserted into the moving track 39. When the positioning plate 38 is pulled out of the moving hole, the support ring 37 moves along the moving track 39 until the positioning plate 38 is completely detached from the moving hole. The positioning plate 38 can be hung on the support ring 37 to prevent loss. The positioning plate 38 is inserted into the moving hole to block the opening 40 on the top wall of the collection box 35 to store the front baffle 36 inside the collection box 35 and prevent it from obstructing the movement of the water storage tank 20.

[0068] The present invention also provides a water recycling method using a construction site water recycling system, comprising the following steps:

[0069] Water collection: In the early stage of construction, water in the foundation pit 2 flows to the water collection ditch 5 through the foundation pit dewatering drainage channel 4; in the middle and late stages of construction, construction wastewater in the construction area 1 flows to the water collection ditch 5 through the foundation pit dewatering drainage channel 4; throughout the construction period, domestic wastewater in the living area 7 flows to the water collection ditch 5 through the domestic water drainage ditch 6, while the water collection ditch 5 collects rainwater from all directions, and then the water in the water collection ditch 5 flows to the sedimentation tank 13;

[0070] Filtration: The clear water after sedimentation in the sedimentation tank 13 flows to the filtration structure 12 for filtration and then flows to the water storage pit 11 for storage;

[0071] Usage: The water in the water storage pit 11 is filled into each water storage tank 20. The water storage tank 20 filled with water is placed in an appropriate location in the construction area 1 for construction use. At the same time, the water in the water storage pit 11 is transported to the living area 7 through the domestic water pipe 9 for use by construction personnel.

[0072] The following embodiments of the construction site water recycling system and water recycling method according to the present invention are provided:

[0073] A water recycling method using a construction site water recycling system includes the following steps:

[0074] Water collection: In the early stage of construction, water in the foundation pit 2 flows to the collection ditch 5 through the foundation pit dewatering drainage channel 4; in the middle and later stages of construction, construction wastewater in the construction area 1 flows to the collection ditch 5 through the foundation pit dewatering drainage channel 4; throughout the construction period, domestic wastewater in the living area 7 flows to the cleaning pool 8 and then flows to the collection ditch 5 through the domestic water drainage ditch 6 or to the municipal pipe network through the drainage pipe 10. At the same time, the collection ditch 5 collects rainwater from all directions, and then the water in the collection ditch 5 flows to the sedimentation tank 13.

[0075] Filtration: The clear water after sedimentation in the sedimentation tank 13 flows to the filter layer at the filter structure 12 for filtration and then flows to the water storage pit 11 for storage.

[0076] Usage: Place support frames 3 at multiple appropriate locations in the construction area 1 and position them using positioning pins 16. Simultaneously, fill the water storage pit 11 into each water storage tank 20. Transport the water-filled water storage tanks 20 to each support frame 3 and place them on the first support plate 17 of the support frame 3. Adjust the position of each first support plate 17 using the hoisting rope 22 and connecting rope 21 to support it with the support structure, so that each first support plate 17 is equipped with a water storage tank 20. At the same time, pull out the positioning plate 38 from the moving hole so that the front baffle 36 extends out of the storage box 35 to limit the water storage tank 20. The water in the water storage tank 20 is used for construction. Meanwhile, the water in the water storage pit 11 is transported to the living area 7 through the domestic water pipe 9 for construction workers to use for washing vehicles, irrigation, etc.

[0077] The number of devices and processing scale described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the invention will be readily apparent to those skilled in the art.

[0078] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A construction site water recycling system, characterized in that, include: Collection device, comprising: A drainage ditch is constructed around the construction area. Multiple drainage channels for foundation pit dewatering are connected to the aforementioned drainage ditch and the foundation pit in the construction area; A domestic water drainage ditch, which connects the water collection ditch to the living area; Processing apparatus, comprising: A sedimentation tank, the inlet of which is connected to the water collection ditch; A water storage pit, which is equipped with a filtration structure inside, and the filtration structure is connected to the outlet of the sedimentation tank; Water supply device, comprising: Multiple water storage tanks are distributed throughout the construction area; Domestic water pipes connect the water storage pit and the living area; The water supply device further includes: multiple support frames distributed in the construction area, multiple water storage tanks placed on the support frames, multiple casters at the bottom of the support frames, and multiple positioning pins inserted into the ground of the construction area around the support frames. The support frame includes: A support platform, which is located between multiple locating pins and has the aforementioned casters at its bottom; A pair of U-shaped vertical limiting slides are provided on the support platform. Multiple pairs of support holes are provided on the opposite side walls of the pair of limiting slides. Each support hole is provided with a telescopic support structure. A support rod is provided on the top of the pair of limiting slides, and a steering pulley is rotatably provided on the support rod. Multiple horizontal first support plates are placed on each pair of support structures. One of the first support plates has multiple strands of connecting ropes detachably installed on its edge. Each connecting rope is connected to one end of a suspension rope, and the other end of the suspension rope passes through the groove of the steering pulley and is connected to the winding wheel. The support structure includes: a second support plate, the bottom of which is hinged to a limiting groove at the edge of the support hole; two movable plates perpendicular to the second support plate are provided on both sides of the second support plate; a hook plate is provided at the end of the movable plate away from the second support plate; the limiting groove at the edge of the support hole is located between the hook plate and the second support plate; and the first support plate is placed on top of the second support plate. The support structure also includes: a limiting plate, which is disposed opposite to a pair of limiting grooves; a first spring is provided between the limiting plate and the second support plate; a threading hole is provided on the limiting plate; a pull rope is provided on the top of the second support plate; and the free end of the pull rope passes through the threading hole and is detachably connected to a positioning ring on the limiting groove.

2. The construction site water recycling system as described in claim 1, characterized in that, The living area includes a cleaning pool located in a low-lying area. The cleaning pool is connected to the water collection ditch through the domestic water drainage ditch and to the municipal pipe network through a drain pipe. Sealing plates can be detachably installed at the connection between the cleaning pool and the domestic water drainage ditch, and at the connection between the cleaning pool and the drain pipe.

3. The construction site water recycling system as described in claim 1, characterized in that, The filtration structure includes a filter trough with an open top, which is inserted into the water storage pit. A placement groove is provided on the top side wall of the filter trough, and multiple filter holes are provided on the side wall of the placement groove. A filter layer is inserted into the placement groove, and the placement groove is located above the water surface in the water storage pit.

4. The construction site water recycling system as described in claim 1, characterized in that, The first support plate has multiple rotating shafts that are perpendicular to the limiting slide groove. The rear end of the first support plate has a vertical rear baffle. The front end of the first support plate has a storage box with an opening on the top wall of the storage box. A vertical front baffle is provided inside the storage box at the position corresponding to the opening. A horizontal connecting plate is provided at the bottom of the front baffle. Multiple second springs are provided at the bottom of the connecting plate. The water storage tank is located between the front baffle and the rear baffle.

5. The construction site water recycling system as described in claim 4, characterized in that, A horizontal moving hole is provided on the top wall of the storage box. A positioning plate is moved and inserted into the moving hole to open or block the opening. A support ring is provided on the outer wall of the storage box. A moving track is provided in the middle of the positioning plate. A portion of the support ring at the same height as the moving hole is moved and inserted into the moving track.

6. A water recycling method using a construction site water recycling system as described in any one of claims 1 to 5, characterized in that, Includes the following steps: Water collection: In the early stage of construction, water in the foundation pit flows into the water collection ditch through the foundation pit dewatering drainage channel; in the middle and later stages of construction, construction wastewater in the construction area flows into the water collection ditch through the foundation pit dewatering drainage channel; throughout the construction period, domestic wastewater in the living area flows into the water collection ditch through the domestic water drainage ditch, while the water collection ditch collects rainwater from all directions, and then the water in the water collection ditch flows into the sedimentation tank. Filtration: The clear water after sedimentation in the sedimentation tank flows to the filtration structure for filtration and then flows to the storage pit for storage; Usage: Fill the water in the water storage pit into each water storage tank, and transport the full water storage tank to an appropriate location in the construction area for construction use. At the same time, the water in the water storage pit is transported to the living area through domestic water pipes for construction workers to use.