Sponge city rainwater storage pond

Abstract

The utility model discloses a sponge city rainwater regulation and storage pond which comprises a water storage pond, a water storage tank penetrates through the water storage pond, a bearing plate is arranged in the water storage pond, the bearing plate divides the water storage tank and forms a water sinking cavity, and a water containing groove is formed between the top wall of the bearing plate and an opening of the water storage pond. The inner walls of the two sides of the water storage tank are each provided with a water passing groove used for allowing rainwater accumulated in the water containing tank to be poured into the water sinking cavity when the bearing plate descends due to the fact that water in the water containing tank is too large and the bearing plate bears too large pressure, and a blocking structure is arranged above the bearing plate. And a reset structure used for driving the bearing plate to slide and reset and enabling the peripheral wall of the bearing plate to re-close the opening at the starting end of the water passing groove when the water quantity in the water containing groove is relatively low is arranged in the reservoir. The utility model solves the problem that the rainwater regulation and storage tank still discharges water flow with impurities such as leaves into the next rainwater treatment procedure as the impurities such as the leaves are difficult to separate from the water flow when the water flow is discharged into the water drainage pipeline in the traditional sponge city rainwater regulation and storage tank.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of auxiliary structure for sponge city, specifically to a sponge city rainwater storage tank. BACKGROUND

[0002] In the construction of sponge city, the rainwater storage tank is a key rainwater management facility for collecting, storing and purifying rainwater, that is, the rainwater storage tank is used to solve and avoid rainwater flood peak, realize rainwater recycling and avoid the pollution of initial rainwater to the discharged water body. It plays a role in temporarily storing rainwater, reducing flood peak flow, reducing the probability of waterlogging and reducing the transmission pressure of the drainage pipe network in the construction of sponge city. However, when the traditional rainwater storage tank is discharged into the water flow through the drainage pipeline, it is often difficult to effectively separate the leaves and other sundries, resulting in that the sundries and water flow enter the storage tank together, so that the sundries such as leaves or plastic bags and water flow are discharged into the next rainwater treatment process, thereby increasing the burden of the subsequent rainwater treatment process. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a sponge city rainwater storage tank to solve the problem that the traditional sponge city rainwater storage tank is difficult to separate leaves and other sundries from water flow when discharging into the water flow through the drainage pipeline, resulting in that the rainwater storage tank still discharges the water flow with leaves and other sundries into the next rainwater treatment process.

[0004] To achieve the above purpose, the utility model provides a sponge city rainwater storage tank, which comprises a water storage tank, a water storage groove is penetrated through the water storage tank along its height direction for water flow in the external drainage pipeline to flow in, a bearing plate is arranged in the water storage tank, the bearing plate separates the water storage groove, and a sink cavity is formed between the bottom wall of the bearing plate and the bottom wall of the water storage groove, a water storage groove is formed between the top wall of the bearing plate and the opening of the water storage tank, overwater grooves are formed on the inner walls on both sides of the water storage groove for the rainwater accumulated in the water storage groove to flow into the sink cavity when the bearing plate is pressed too much and drops due to too much water in the water storage groove, the end of the overwater groove is communicated with the sink cavity, the outer peripheral wall of the bearing plate is closed at the opening of the beginning of the overwater groove, a blocking structure is arranged above the bearing plate, and a reset structure is arranged in the water storage tank for driving the bearing plate to slide back and reseal the opening of the beginning of the overwater groove when the water quantity in the water storage groove is low.

[0005] The advantages of adopting the above technical solution are as follows: When rainwater is collected in external drainage ditches or canals, it is discharged into the storage tank through external drainage pipes. At this time, the water tank will continuously fill with water. When the water tank is too full, the resulting gravity will exert a force on the supporting plate. At this time, the supporting plate will descend in the storage tank, exposing the opening at the beginning of the water tank. This allows rainwater to be discharged into the settling chamber through the water tank, thus realizing the automated discharge of stored water. In the above technology, when the drainage pipe discharges rainwater into the storage tank, a large amount of leaves and other debris carried by the rainwater will be blocked by the barrier structure, making it difficult for leaves and other debris to flow with the rainwater through the water tank into the settling chamber, thereby reducing the difficulty of subsequent rainwater treatment processes. The reset structure in the above technology is used to drive the load-bearing plate to reset and re-close the opening of the water tank after a large amount of rainwater accumulates in the water tank and is discharged into the submerged cavity. This prevents rainwater from being discharged into the submerged cavity through the water tank, allowing rainwater to continue to accumulate in the water tank. This reduces the frequency of use of the reset structure and the frequency of displacement of the load-bearing plate when the amount of rainwater is not large, thereby improving the service life. In the above technology, a drainage pipe is also provided between the water storage tank and the next rainwater treatment process, and the drainage pipe is connected to the submerged cavity. This allows the rainwater in the submerged cavity to be discharged to the next process through the drainage pipe. The drainage pipe is existing technology and will not be described in detail.

[0006] The present invention further comprises: the reset structure including a plurality of reset springs evenly distributed circumferentially on the bottom wall of the water storage tank, the bottom of the reset springs being connected to the bottom wall of the water storage tank, and the top of the reset springs being connected to the edge of the bottom wall of the load-bearing plate.

[0007] The advantages of adopting the above technical solution are: In the above technology, the load-bearing plate is slidably reset by the reset spring. When the weight of the rainwater accumulated in the water tank is greater than the mechanical force required to compress the reset spring, the load-bearing plate will descend. When the weight of the rainwater accumulated in the water tank is less than the mechanical force required to compress the reset spring, the mechanical force applied by the deformation of the reset spring will drive the load-bearing plate to rise and reset. This achieves adaptive drainage of the water storage tank. Through adaptive drainage, a large amount of accumulated rainwater will not be poured into the next treatment process equipment at once, thereby reducing the burden on the next rainwater treatment process equipment.

[0008] The present invention is further provided that: the center of the load-bearing plate is raised towards the opening of the water storage tank and the radial cross section is triangular.

[0009] The advantages of adopting the above technical solution are: the center of the load-bearing plate is raised towards the opening of the water storage tank and the radial cross section is triangular, so that when the load-bearing plate descends, the rainwater accumulated on the load-bearing plate can be poured into the water storage tank through the tilt of its surface, thereby improving drainage efficiency; at the same time, when the load-bearing plate moves up and down, the rainwater accumulated in the water storage tank can be stirred up, so that impurities such as leaves can be blocked by the barrier structure along with the rainwater, thereby improving the barrier structure's blocking strength against debris.

[0010] The present invention further includes the following: the barrier structure includes a first barrier mesh disposed above the load-bearing plate, the first barrier mesh being arranged in a grid pattern.

[0011] The advantages of adopting the above technical solution are: the first barrier net is used to block debris such as leaves, and when the rainwater accumulated in the water tank surges, the debris such as leaves can come into contact with the surface of the first barrier net. As a result, when the load-bearing plate descends, the debris such as leaves can remain on the first barrier net and the rainwater can continue to settle along the mesh, thereby improving the barrier strength against debris and avoiding affecting the drainage of rainwater.

[0012] The present invention further includes a second barrier net disposed between the first barrier net and the load-bearing plate, wherein the second barrier net is fitted to the load-bearing plate.

[0013] The advantages of adopting the above technical solution are: the second barrier net is used to further block debris such as leaves, and the fact that the second barrier net is attached to the load-bearing plate allows the rainwater carried by the load-bearing plate when it rises to impact the debris blocked by the second barrier net, so that some debris can be flushed back into the water tank through the mesh of the first barrier net. That is, if a small amount of debris such as leaves accidentally passes through the first barrier net, it can still be blocked by the second barrier net and flushed back into the water tank when the rainwater surges, and then blocked by the first barrier net, thereby improving the blocking strength.

[0014] The present invention is further configured such that the first barrier net and the second barrier net are arranged in parallel relative to each other, and the grid positions of the first barrier net and the grid positions of the second barrier net are staggered.

[0015] The advantage of adopting the above technical solution is that the grid positions of the first barrier net and the second barrier net are staggered, which further improves the blocking strength against debris such as leaves. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a three-dimensional view of the internal structure of the water storage tank in this utility model. Detailed Implementation

[0019] This utility model provides a rainwater storage tank for sponge cities, including a storage tank 1. A water storage trough 11, extending along the height of the storage tank 1, allows water from an external drainage pipe to flow in. A load-bearing plate 2 is installed in the storage tank 1. The load-bearing plate 2 separates the water storage trough 11, and a submerged cavity 12 is formed between the bottom wall of the load-bearing plate 2 and the bottom wall of the water storage trough 11. A water-holding trough 13 is formed between the top wall of the load-bearing plate 2 and the opening of the storage tank 1. Both inner walls of the 1st and 2nd sides are provided with water channels 14 for allowing rainwater accumulated in the water tank 13 to flow into the submerged cavity 12 when the load-bearing plate 2 is lowered due to excessive pressure caused by excessive water in the water tank 13. The end of the water channel 14 is connected to the submerged cavity 12. The outer peripheral wall of the load-bearing plate 2 is used to close the opening at the beginning of the water channel 14. A barrier structure is provided above the load-bearing plate 2. The water storage tank 1 is provided with a mechanism to drive away water when the water level in the water tank 13 is low. The movable load-bearing plate 2 slides back to its original position and re-closes the outer peripheral wall of the load-bearing plate 2 at the opening of the water tank 14. The resetting structure includes several resetting springs 3 evenly distributed circumferentially on the bottom wall of the water tank 11. The bottom of the resetting springs 3 is connected to the bottom wall of the water tank 11, and the top of the resetting springs 3 is connected to the edge of the bottom wall of the load-bearing plate 2. The center of the load-bearing plate 2 protrudes towards the opening of the water tank 11 and has a triangular radial cross-section. The barrier structure includes a first barrier net 4 set above the load-bearing plate 2. The first barrier net 4 is arranged in a grid pattern. The barrier structure also includes a second barrier net 41 set between the first barrier net 4 and the load-bearing plate 2. The second barrier net 41 is attached to the load-bearing plate 2. The first barrier net 4 and the second barrier net 41 are arranged parallel to each other. The grid positions of the first barrier net 4 and the second barrier net 41 are staggered.

[0020] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A rainwater storage tank for sponge cities, characterized in that: The system includes a water storage tank with a water storage trough extending along its height for water to flow into it from an external drainage pipe. A load-bearing plate is installed in the water storage tank, separating the water storage trough and forming a submerged cavity between the bottom wall of the load-bearing plate and the bottom wall of the water storage trough. A water-holding trough is formed between the top wall of the load-bearing plate and the opening of the water storage tank. Water passages are provided on the inner walls of both sides of the water storage trough to allow rainwater accumulated in the trough to flow into the submerged cavity when the load-bearing plate is under excessive pressure due to excessive water in the trough. The end of the water passage is connected to the submerged cavity. The outer periphery of the load-bearing plate is used to seal the opening at the beginning of the water passage. A barrier structure is provided above the load-bearing plate. The water storage tank also includes a reset structure for driving the load-bearing plate to slide and reset when the water level in the trough is low, causing the outer periphery of the load-bearing plate to reseal the opening at the beginning of the water passage.

2. The rainwater storage tank for sponge cities according to claim 1, characterized in that: The reset structure includes several reset springs evenly distributed circumferentially on the bottom wall of the water storage tank. The bottom of the reset spring is connected to the bottom wall of the water storage tank, and the top of the reset spring is connected to the edge of the bottom wall of the load-bearing plate.

3. The rainwater storage tank for sponge cities according to claim 1, characterized in that: The load-bearing plate has a raised center that faces the opening of the water storage tank and has a triangular radial cross-section.

4. A rainwater storage tank for sponge cities according to claim 1, characterized in that: The barrier structure includes a first barrier mesh disposed above the load-bearing plate, the first barrier mesh being arranged in a grid pattern.

5. A rainwater storage tank for sponge cities according to claim 4, characterized in that: The barrier structure also includes a second barrier net disposed between the first barrier net and the load-bearing plate, wherein the second barrier net is fitted to the load-bearing plate.

6. A rainwater storage tank for sponge cities according to claim 5, characterized in that: The first barrier net and the second barrier net are arranged parallel to each other, and the grid positions of the first barrier net and the grid positions of the second barrier net are staggered.

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