Rainwater collecting box for prefabricated yard on bridge

Abstract

The utility model aims at providing a rainwater collecting box for a prefabricated yard on a bridge. The rainwater collecting box comprises a box body, a blocking mechanism and a water collecting pipe, wherein the blocking mechanism divides the box body into a plurality of water storage areas in the length direction of the box body, the water collecting pipe drains rainwater on the bridge, and the two water storage areas located at the two ends of the box body serve as a first water storage area and a second water storage area respectively. A water outlet of the water collecting pipe is formed in the first water storage area, and a water pumping mechanism is arranged in the second water storage area; the blocking mechanism is provided with a plurality of water passing openings which are far away from the bottom of the box body and communicate with the adjacent water storage areas. The rainwater collecting box is arranged on the bridge, rainwater on the bridge floor and waste water generated during maintenance and dust falling are collected into the box body, muddy water with silt is sequentially precipitated in the multiple water storage areas, clear water obtained after precipitation is pumped again, and therefore circulating water using of the prefabricated field on the bridge is achieved, and the water conveying pressure of construction water is greatly relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge precast field construction technical field more specifically, relate to a rainwater collection box for bridge precast field. BACKGROUND

[0002] In the development of modern traffic network, bridge engineering plays an indispensable role. With the continuous acceleration of transportation infrastructure construction, improving the efficiency of bridge construction, ensuring the quality of the project, and reducing the construction cost have become the key issues in the industry. Under this background, bridge precast field construction technology emerged as the times require, ingeniously migrating the precast field to the bridge that has been built. For mountainous and complex terrain areas such as crossing rivers or gorges, the bridge precast field can make full use of the bridge structure, effectively solve the site problem, save temporary land, and directly install the precast component after precast on the bridge, greatly shortening the transportation distance, reducing the transportation cost, reducing the damage risk of the precast component in the transportation process, reducing the management difficulty, improving the production efficiency and safety of the precast field.

[0003] At present, the construction water required by the bridge precast field is mostly pumped from the nearby river and then transported to the water storage tanks on the bridge for storage for use.

[0004] Due to the huge demand for maintenance dust removal water during the construction process, the water transportation pressure of the construction water is greatly increased. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a rainwater collection box for bridge precast field, which collects the rainwater and maintenance dust removal wastewater on the bridge deck into the box body through the rainwater collection box arranged on the bridge, and the turbid water with silt is sequentially deposited in multiple water storage areas, and the clear water after deposition is reused, thereby realizing the recycling of water in the bridge precast field and greatly reducing the water transportation pressure of the construction water.

[0006] The utility model is realized by the following technical scheme:

[0007] The utility model discloses a rainwater collection box for bridge precast field, which comprises a box body, a barrier mechanism for separating the box body into multiple water storage areas along the length direction of the box body, a water collecting pipe for guiding the rainwater on the bridge, and two water storage areas at both ends of the box body are respectively used as a first water storage area and a second water storage area.

[0008] The water outlet of the water collecting pipe is arranged in the first water storage area, and a water pumping mechanism is arranged in the second water storage area.

[0009] The barrier mechanism is provided with multiple water passing openings which are away from the bottom of the box body and respectively communicate with adjacent water storage areas.

[0010] In order to solve the water problem of the bridge precast yard, the accumulated water on the bridge is collected and drained into the box, and then pumped by the pumping mechanism to realize the recycling of water resources. Through the above technical scheme, the space inside the box is divided into multiple water storage areas by the blocking mechanism, the accumulated water is first sent into the first water storage area by the water collecting pipe, and the sediment and other impurities are deposited in the first water storage area. When the water level in the first water storage area reaches the height of the water overflow port, the upper layer of the deposited water will flow to the next water storage area adjacent to the first water storage area, and when the accumulated water reaches the height of the water overflow port after being deposited again, it will flow to the next water storage area adjacent to the first water storage area. The water in the second water storage area is relatively clean after being deposited for several times, and can be pumped out by the pumping mechanism for construction and maintenance of dust water. The construction and maintenance of dust water will be collected again by the water collecting pipe and sent back to the box, thereby realizing the recycling of water resources, effectively solving the water problem of the bridge precast yard, and greatly reducing the investment and operation cost of water transportation equipment.

[0011] As a preferred embodiment of the present application, the box is provided with a drainage port and an agitation assembly corresponding to the position of the first water storage area.

[0012] Through the above technical scheme, the first water storage area performs the first deposition on the collected accumulated water on the bridge, and the deposited sediment and other impurities are at most. In order to make the water flowing into the second water storage area cleaner, the first water storage area needs to be cleaned regularly, and the agitation assembly can change the sediment and other impurities in the first water storage area from the accumulated state to the suspended state, thereby facilitating the deposition of sediment and water from the drainage port.

[0013] As a preferred embodiment of the present application, the agitation assembly comprises a rotating part arranged at the bottom of the box and having a rotating shaft perpendicular to the bottom surface of the box, and a plurality of blades connected to the rotating part and arranged horizontally near the bottom of the box.

[0014] Through the above technical scheme, the agitation assembly is arranged at the bottom of the box where the sediment accumulates, which can avoid the problem that the sediment is too much to be agitated due to clumping. The plurality of blades are driven by the rotating part to scatter the clumped sediment and agitate the accumulated water to form a vortex to accelerate the sediment to become suspended, thereby improving the cleaning effect.

[0015] As a preferred embodiment of the present application, each of the blades is inclined upward along the rotation direction of the rotating part.

[0016] Through the above technical scheme, the blades are inclined upward along the rotation direction, which can reduce the resistance of the sediment to the blades when the sediment is scattered, and help to form a vortex more quickly to generate a greater upward force on the accumulated water, thereby fully suspending the sediment, improving the cleaning effect each time, reducing the cleaning frequency, and reducing the waste of circulating water.

[0017] As the preferred of the utility model, the barrier mechanism includes multiple barrier sub-mechanisms, the barrier sub-mechanisms include water blocking parts, the water blocking parts are provided with the water passing opening at the position away from the bottom of the box, and the barrier sub-mechanisms further include floating parts that float with the water level change in the water storage area adjacent to the two sides of the water blocking part to change the opening area of the water passing opening.

[0018] The floating part is provided with a buoyancy piece in the water storage area adjacent to the two sides of the water blocking part, and the buoyancy generated by the single buoyancy piece when completely immersed in the water storage area is less than the self-gravity of the floating part, and the buoyancy generated by the two buoyancy pieces when completely immersed in the water storage area is greater than the self-gravity of the floating part.

[0019] By adopting the above technical scheme, on the one hand, when the accumulated water initially enters the first water storage area and the water level reaches the lowest water passing water level of the water passing opening, the accumulated water starts to flow to the next water storage area adjacent to the first water storage area, and when the water level in the next water storage area also reaches the lowest water passing water level of the water passing opening, the buoyancy provided by the buoyancy pieces on the two sides of the floating part is greater than the self-gravity of the floating part, so as to push the floating part upward, and at the same time, continue to flow into the next water storage area, and finally, the water levels in the water storage areas remain flat. When the floating part is at the lowest position, the capacity of the water storage area is small, which can reduce the sedimentation time when the accumulated water initially enters the box, so that the accumulated water can flow into the second water storage area to provide circulating water supply as soon as possible. When the subsequent accumulated water is sufficient, the position of the floating part is raised with the water level, and the capacity of each water storage area gradually increases, so that the better sedimentation effect is restored.

[0020] On the other hand, the water supply to the box can be temporarily suspended by closing the water outlet of the water collecting pipe, and as the water in the second water storage area is pumped out and the water level drops, due to the buoyancy provided by the single-sided buoyancy piece being less than the self-gravity of the floating part, the floating part between the water storage areas moves downward in turn, and the upper clear water continues to flow into the second water storage area for pumping by the water pump. When the floating part of each water storage area moves to the lowest position, the drain outlet and the stirring assembly are opened to clean the first water storage area, so as to reduce the waste of the upper clear water after sedimentation in the first water storage area, and also to reduce the time for cleaning the silt and draining water. After cleaning, the drain outlet is closed and the water outlet of the water collecting pipe is opened, so that the water level height of the second water storage area can be immediately increased, and the water pump can be promptly restored.

[0021] As the preferred of the utility model, the box is provided with a water level sensing unit connected with the stirring mechanism at the position corresponding to the second water storage area.

[0022] The water pumping mechanism includes a water pump connected with the water level sensing unit and a water conveying pipeline connected with the water pump, and the water pump is arranged in the second water storage area below the height of the water level sensing unit and away from the bottom of the box.

[0023] By adopting the technical scheme, the water pump is arranged away from the bottom of the box body, so that part of the accumulated water in the second water storage area cannot be pumped by the water pump, and a certain degree of silt deposition effect is achieved, thereby avoiding that the water pump directly pumps the relatively turbid accumulated water at the bottom of the box body.

[0024] When the water level is lower than the water level sensing unit, the water pump stops pumping the accumulated water, and the stirring mechanism is enabled according to the signal of the water level sensing unit, and the stirring mechanism can be started only after being enabled.

[0025] As a preferred embodiment of the utility model, the box body is provided with a filter structure between the upper part corresponding to the first water storage area and the water outlet of the water collecting pipe.

[0026] The accumulated water drained by the water collecting pipe is filtered to avoid that larger sundries enter the box body to block the water pumping mechanism, the water outlet and the like.

[0027] As a preferred embodiment of the utility model, the box body is provided with a sealing structure on the top corresponding to each water storage area except the first water storage area.

[0028] By adopting the technical scheme, on the one hand, dust and sundries can be prevented from falling into the box body, and on the other hand, water evaporation loss in the box body can be avoided.

[0029] As a preferred embodiment of the utility model, the box body is provided with a plurality of reinforcing ribs along the width direction of the box body.

[0030] By adopting the technical scheme, the structural strength of the box body is increased to prevent the box body from being deformed by water pressure.

[0031] As a preferred embodiment of the utility model, the box body is provided with a plurality of positioning feet cooperating with the bent cap block below the bottom surface.

[0032] By adopting the technical scheme, the rainwater collecting box is placed in the space on the bent cap block to reduce the occupation of the space on the bridge, and the bent cap blocks are uniformly distributed along the length direction of the bridge, so that the rainwater collecting boxes arranged according to the positions of the bent cap blocks are also uniformly distributed, the segmented collection and use of the accumulated water are facilitated, the positioning feet at the bottom of the box body facilitate the accurate placement of the rainwater collecting box on the bent cap block, the assembly convenience is improved, and the rainwater collecting box is kept stable by relying on the gravity of the accumulated water in the box and the limitation of the positioning feet, without the need for additional fixing of the rainwater collecting box.

[0033] In summary, the utility model has the following beneficial effects:

[0034] 1. Collecting rainwater on the bridge, maintenance of dust wastewater into the box of the first water storage area, gradually accumulated and precipitated in the first water storage area, the upper layer of the water from the water inlet into the next water storage area again to accumulate and precipitate, after multiple precipitation through multiple water storage area, the turbid water originally collected with silt into clean water, can be re-pumped for construction, realizing the bridge precast yard circulating water, greatly reducing the water pressure;

[0035] 2. The first water storage area is provided with a drainage port and an agitation assembly to periodically clean the silt in the box, so as to ensure the sedimentation and purification effect of the water;

[0036] 3. The appropriate buoyancy member is arranged to realize the dynamic adjustment of the size of the drainage port, which can reduce the sedimentation time of the accumulated water initially entering the box, so that the accumulated water can flow into the second water storage area as soon as possible to provide circulating water supply, and on the other hand, the waste of the upper layer of the water after precipitation in the first water storage area can be reduced, and the time for cleaning silt and draining water can also be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a structure schematic view of a rainwater collecting box for a bridge precast yard in embodiment 1, wherein the water collecting pipe is not shown;

[0038] Figure 2 It is a structure schematic view of a rainwater collecting box for a bridge precast yard in embodiment 2, wherein the water collecting pipe is not shown;

[0039] Figure 3 It is a structure schematic view of the agitation assembly in embodiment 2;

[0040] Figure 4 It is a sectional view of the blocking sub-mechanism in embodiment 3;

[0041] Figure 5 It is a structure schematic view of a rainwater collecting box for a bridge precast yard combined with a bent block, showing the cooperation mode of the two.

[0042] In the figure: 1, the box; 11, the first water storage area; 12, the second water storage area; 2, the blocking sub-mechanism; 21, the water inlet; 22, the water retaining part; 23, the floating part; 231, the buoyancy member; 3, the water pumping mechanism; 4, the drainage port; 5, the agitation assembly; 51, the rotating part; 52, the blade; 6, the filter screen; 7, the top cover; 8, the reinforcing rib; 9, the positioning foot; 10, the bent block. DETAILED DESCRIPTION

[0043] The utility model will be further explained in detail in combination with the drawings.

[0044] The specific embodiment is merely an explanation of the utility model, and is not a limitation of the utility model, and a person skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

[0045] Embodiment 1:

[0046] As Figure 1 shown, a rainwater collecting tank for a bridge prefabrication yard comprises a tank body 1, a blocking mechanism separating the tank body 1 into multiple water storage areas along the length direction of the tank body 1, a water collecting pipe for draining bridge rainwater, and the two water storage areas at both ends of the tank body 1 are taken as a first water storage area 11 and a second water storage area 12 respectively.

[0047] The water outlet of the water collecting pipe is arranged in the first water storage area 11, and a water pumping mechanism 3 is arranged in the second water storage area 12.

[0048] The blocking mechanism is provided with multiple water passing openings 21 away from the bottom of the tank body 1 and respectively communicating with adjacent water storage areas.

[0049] Explanatorily, the bridge deck drainage mainly relies on the horizontal slope (2%) and the longitudinal slope (0.7%) of the bridge deck for drainage, and the water collecting pipes are arranged on the bridge deck at every interval of a pier number on both sides of the bridge to connect the bridge deck drainage holes with the first water storage area 11 of the tank body 1, and the rainwater, maintenance dusting wastewater and the like of the bridge deck flow to the water collecting pipes through the drainage holes, and then are sent into the tank body 1 for sedimentation and recycling. With the extension of the bridge construction length, the rainwater collecting tank is arranged on the baffle at each bent cap on both sides, and the water use problem is solved nearby, and each rainwater collecting tank supplies construction water for the maintenance dusting of the corresponding bridge deck.

[0050] Explanatorily, the tank body of the embodiment is taken as a rectangle welded by 6mm steel plates for example, and the blocking mechanism separating the tank body 1 into three water storage areas is taken as an example for explanation, and the water storage area between the first water storage area 11 and the second water storage area 12 is taken as an intermediate water storage area. The accumulated water sent into the tank body 1 firstly enters the first water storage area 11, and the upper clear water in the first water storage area 11 flows to the intermediate water storage area in the process of gradually accumulating in the first water storage area 11, and the upper clear water in the intermediate water storage area flows to the second water storage area 12 when the water level in the intermediate water storage area reaches the lowest height of the water passing opening 21. The water pumping mechanism 3 in the embodiment is not arranged at the bottom of the tank body 1, and the accumulated water in the second water storage area 12 can be further deposited, and then is pumped when the water level reaches the height of the water pumping mechanism 3, so that the turbid water with mud and sand sent into the tank body 1 by the water collecting pipe is changed into relatively clean water through multiple times of deposition, and then is used for construction again, realizing the recycling of water resources, and greatly reducing the investment and operation cost of water transportation equipment.

[0051] In some embodiments of this application, a plurality of reinforcing ribs 8 are provided inside the box 1 along the width direction of the box 1.

[0052] For illustrative purposes, the reinforcing rib 8 can increase the structural strength of the box body 1 in the width direction and prevent the box body 1 from deforming under water pressure.

[0053] Example 2:

[0054] like Figure 2 As shown, the difference between this embodiment and embodiment 1 is that the tank 1 is provided with a drain outlet 4 and an agitator 5 at the position corresponding to the first water storage area 11.

[0055] Explanatoryly, the first water storage area 11 performs the first sedimentation of the collected water from the bridge, and the sediment contains the most debris and silt. In order to make the water flowing into the second water storage area 12 cleaner, the first water storage area 11 needs to be cleaned regularly. The stirring component 5 can change the silt and other impurities in the first water storage area 11 from a piled state to a suspended state, so that the sedimented silt can be discharged with the water from the drain outlet 4.

[0056] Explanatoryly, the accumulated silt can be cleared by periodically and manually turning on the agitator 5 and opening the drain 4 to drain the water in the first water storage area 11.

[0057] In some embodiments of this application, a filter structure is provided between the top of the box 1 corresponding to the first water storage area 11 and the outlet of the water collection pipe.

[0058] For illustrative purposes, the filter structure can be a filter screen 6 or a grate with a larger pore size to filter the water flowing from the collection pipe. It does not need to filter fine substances such as mud and sand, but only prevents larger debris from entering the box 1 and clogging the pumping mechanism 3 and the water outlet 21.

[0059] In some embodiments of this application, the housing 1 is provided with a sealing structure on the top of each of the water storage areas other than the first water storage area 11.

[0060] For illustrative purposes, the sealing structure can be a cover plate, an airtight dust cover, etc., which can prevent dust and debris from falling into the box 1, and also prevent water from evaporating and escaping from the box 1.

[0061] In some embodiments of this application, reference is made to the appendix. Figure 3 The agitation assembly 5 includes a rotating part 51 disposed at the bottom of the housing 1 with its rotation axis perpendicular to the bottom surface of the housing 1, and a plurality of blades 52 connected to the rotating part 51 and disposed horizontally near the bottom of the housing 1.

[0062] Each blade 52 is inclined upward along the rotation direction of the rotating part 51.

[0063] Explanatoryly, placing the agitator 5 at the bottom of the sediment-accumulated tank 1 avoids the problem of excessive sediment buildup causing clumping and hindering agitation. Multiple blades 52, driven by the rotating part 51, break up the clumps of sediment and simultaneously agitate the water to create eddies, accelerating the sediment into a suspended state and improving cleaning efficiency. The upward tilt of the blades 52 in the direction of rotation reduces the resistance generated by the sediment when breaking it up, and also helps to create eddies more quickly, generating greater upward force in the water and fully suspending the sediment. This results in better cleaning each time, reduces the frequency of cleaning, and minimizes waste of circulating water. Figure 3 The rotation direction of the central rotating part 51 is counterclockwise when viewed from above.

[0064] Example 3:

[0065] like Figure 4 As shown, the difference between this embodiment and embodiment 2 is that the barrier mechanism includes multiple barrier sub-mechanisms 2. The barrier sub-mechanism 2 includes a water-blocking part 22. The water-blocking part 22 has a water outlet 21 at a position away from the bottom of the tank body 1. The barrier sub-mechanism 2 also includes a floating part 23 that floats according to the water level changes in the water storage area on both sides of the water-blocking part 22 to change the opening area of ​​the water outlet 21.

[0066] The floating part 23 is provided with buoyancy members 231 in the water storage area on both sides adjacent to the water blocking part 22. When a single buoyancy member 231 is completely submerged in the water storage area, the buoyancy generated is less than the weight of the floating part 23 itself. When two buoyancy members 231 are completely submerged in the water storage area, the buoyancy generated is greater than the weight of the floating part 23 itself.

[0067] Explanatoryly, the buoyancy member 231 is a T-shaped structure inserted into the lower edge of the water outlet 21 of the water-blocking part 22. The horizontal part of the T-shaped buoyancy member 231 extends into the two adjacent water storage areas of the water-blocking part 22, and the horizontal part is connected to the buoyancy member 231 such as foam material, air bag, and float. When the water in the water storage area submerges the buoyancy member 231, the water provides an upward buoyancy force to the buoyancy member 231 that is positively correlated with the drainage volume of the buoyancy member 231. The buoyancy of the buoyancy member 231 reaches its maximum when the buoyancy member 231 is completely submerged in the water. The volume of the buoyancy member 231 is adjusted according to the self-weight adaptability of the floating part 23, so that the buoyancy provided by the buoyancy member 231 in the water storage area on one side of the horizontal part is less than the weight of the floating part 23 itself. The floating part 23 will not rise relative to the water blocking part 22. The buoyancy provided by the buoyancy member 231 in the water storage areas on both sides of the horizontal part is greater than the weight of the floating part 23 itself. The vertical part of the floating part 23 is constrained by the water blocking part 22 and rises in height in the vertical direction relative to the water blocking part 22, thereby partially blocking the opening area of ​​the water outlet 21 and increasing the minimum water level of the water outlet 21.

[0068] Explanatorily, when the accumulated water initially enters the first water storage area 11 and reaches the lowest water level of the water overflow port 21, the accumulated water begins to flow to the intermediate water storage area, at this time, the blocking mechanism 2 between the first water storage area 11 and the intermediate water storage area only has one side of the floating member affected by the buoyancy, which is insufficient to lift the height of the floating part 23, when the water level in the intermediate water storage area also reaches the lowest water level of the water overflow port 21, both sides of the floating member 231 are affected by the buoyancy, when the provided buoyancy is greater than the self-gravity of the floating part, the floating part is pushed upward, and at the same time, the accumulated water in the intermediate water storage area continues to flow to the second water storage area 12, the floating part 23 of the blocking mechanism 2 between the second water storage area 12 and the intermediate water storage area changes accordingly, and the water levels in the respective water storage areas remain flat and are raised synchronously. The settling time of the accumulated water initially entering the box body 1 can be reduced, so that the accumulated water flows to the second water storage area 12 as soon as possible to provide circulating water supply, and when the subsequent accumulated water is sufficient, the position of the floating part 23 rises with the water level, and the capacity of the respective water storage areas gradually increases, thereby restoring a good sedimentation effect.

[0069] Explanatorily, the water supply to the box body 1 can be temporarily suspended by closing the water outlet of the water collecting pipe, as the water in the second water storage area 12 is gradually pumped out, the water level decreases, and since the buoyancy provided by the one side of the floating member 231 is less than the self-gravity of the floating part 23, the floating part 23 between the respective water storage areas moves downward in turn, and the upper clear water continues to flow to the second water storage area 12 for pumping by the water pump, when the floating part 23 of the respective water storage areas moves to the lowest position, the water outlet 4 is opened and the stirring assembly 5 is started to clean the first water storage area 11, thereby reducing the waste of the upper clear water in the first water storage area 11 after sedimentation, and also reducing the time for cleaning the silt and draining water. After cleaning, the water outlet 4 and the stirring assembly 5 are closed, and the water outlet of the water collecting pipe is opened, thereby completing the cleaning.

[0070] In some embodiments of the present application, the box body 1 is provided with a water level sensing unit connected with the stirring mechanism at a position corresponding to the second water storage area 12.

[0071] The water pumping mechanism 3 includes a water pump connected with the water level sensing unit and a water conveying pipeline connected with the water pump, and the water pump is arranged in the second water storage area 12 below the height of the water level sensing unit and away from the bottom of the box body 1.

[0072] Explanatorily, the water pump and the stirring mechanism are controlled by monitoring the water level of the second water storage area 12. Exemplarily, the water level sensing unit includes a relatively high first sub-unit and a relatively low second sub-unit, when the water level is higher than the first sub-unit, the water pump is controlled to pump water, and when the water level is lower than the second sub-unit, the water pump is controlled to stop pumping water, thereby ensuring that the accumulated water in the second water storage area 12 can normally play a sedimentation role.

[0073] In some embodiments of the present application, reference is made to the accompanying drawings Figure 5The bottom surface of the box 1 is provided with a plurality of positioning feet 9 cooperating with the bent cap block 10.

[0074] Illustratively, the rainwater collecting box is placed in the space on the bent cap block 10, the space occupation of the prefabricated field on the bridge is reduced, the bent caps are uniformly distributed along the length direction of the bridge, the rainwater collecting boxes arranged according to the positions of the bent caps are also uniformly distributed, the segmented collection and taking of the accumulated water are facilitated, the positioning feet 9 at the bottom of the box 1 facilitate the accurate placement of the rainwater collecting box on the bent cap block 10, the inner side surfaces of the positioning feet 9 correspond to the four side walls of the block respectively, the effect of limiting the horizontal movement of the rainwater collecting box is achieved, the assembly convenience is improved, and the rainwater collecting box is kept stable by the gravity of the rainwater in the box, and the rainwater collecting box does not need to be fixed additionally.

[0075] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rainwater collection box for a bridge prefabrication yard, characterized in that: Includes a box body (1), a barrier mechanism that divides the box body (1) into multiple water storage areas along the length of the box body (1), and a rainwater collection pipe on the diversion bridge, with the two water storage areas located at both ends of the box body (1) respectively serving as the first water storage area (11) and the second water storage area (12). The outlet of the water collection pipe is located in the first water storage area (11), and the second water storage area (12) is equipped with a pumping mechanism (3). The barrier mechanism is provided with multiple water inlets (21) that are far from the bottom of the box (1) and are respectively connected to each adjacent water storage area.

2. A rainwater collection box for a bridge prefabrication yard according to claim 1, characterized in that, The box (1) is provided with a drain outlet (4) and an agitator (5) at the position corresponding to the first water storage area (11).

3. A rainwater collection box for a bridge prefabrication yard according to claim 2, characterized in that, The agitation assembly (5) includes a rotating part (51) disposed at the bottom of the box (1) and whose rotation axis is perpendicular to the bottom surface of the box (1), and a plurality of blades (52) connected to the rotating part (51) and arranged horizontally near the bottom of the box (1).

4. A rainwater collection box for a bridge prefabrication yard according to claim 3, characterized in that, Each blade (52) is inclined upward along the rotation direction of the rotating part (51).

5. A rainwater collection box for a bridge prefabrication yard according to claim 2, characterized in that, The barrier mechanism includes multiple barrier sub-mechanisms (2), each barrier sub-mechanism (2) includes a water-blocking part (22), the water-blocking part (22) has the water inlet (21) at a position away from the bottom of the box (1), and the barrier sub-mechanism (2) also includes a floating part (23) that floats with the water level changes in the water storage areas on both sides of the water-blocking part (22) to change the opening area of ​​the water inlet (21). The floating part (23) is provided with buoyancy components (231) in the water storage areas on both sides adjacent to the water blocking part (22). When a single buoyancy component (231) is completely submerged in the water storage area, the buoyancy generated is less than the weight of the floating part (23). When two buoyancy components (231) are completely submerged in the water storage area, the buoyancy generated is greater than the weight of the floating part (23).

6. A rainwater collection box for a bridge prefabrication yard according to claim 5, characterized in that, The housing (1) is provided with a water level sensing unit connected to the agitation assembly (5) at the position corresponding to the second water storage area (12); The pumping mechanism (3) includes a pump connected to the water level sensing unit and a water supply pipeline connected to the pump. The pump is located in the second water storage area (12) at a height lower than the water level sensing unit and away from the bottom of the tank (1).

7. A rainwater collection box for a bridge prefabrication yard according to any one of claims 1-6, characterized in that, The housing (1) is provided with a filter structure between the top of the first water storage area (11) and the outlet of the water collection pipe.

8. A rainwater collection box for a bridge prefabrication yard according to claim 7, characterized in that, The box (1) is provided with a sealing structure on the top of each of the other water storage areas besides the first water storage area (11).

9. A rainwater collection box for a bridge prefabrication yard according to any one of claims 1-6, characterized in that, The box (1) is provided with a plurality of reinforcing ribs (8) along the width direction of the box (1).

10. A rainwater collection box for a bridge prefabrication yard according to any one of claims 1-6, characterized in that, The bridge includes a cap beam block (10), and the bottom surface of the box body (1) is provided with a plurality of positioning feet (9) that cooperate with the cap beam block (10).

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