Drain board with filtering function

Abstract

The utility model relates to the technical field of drain boards, and particularly discloses a drain board with a filtering function, which comprises a drain board and a support rod, the inner wall of the drain board is connected with a filter cartridge through a buckle, the filter cartridge is connected with an elastic rod through the support rod, the lower end of the elastic rod is fixedly connected with a chassis, and the upper end of the chassis is fixedly connected with a water drawing sponge. The side surface of the chassis contacts with the inner wall of the filter cartridge; the utility model has the beneficial effects that the weight of the chassis is increased through the water drawing sponge, so that the elastic rod is stretched to gradually enlarge the space at the upper end of the chassis, the water discharge is increased, and the hydrostatic pressure increase of the waterproof layer caused by bottom end blockage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of drainage board technology, specifically a drainage board with filtration function. Background Technology

[0002] Drainage boards are made of polystyrene or polyethylene plastic base plates, which are stamped into conical protrusions or hollow cylindrical porous shapes. A layer of filter geotextile is bonded to the top surface of the hollow cylindrical porous shape to prevent soil particles from passing through, thereby avoiding blockage of the drainage channels and ensuring smooth drainage.

[0003] Chinese patent CN212772296U discloses a composite drainage board with water filtration function. This utility model relates to the technical field of composite drainage boards, including a first drainage board body. A support block is installed on the top of the first drainage board body, and a filter is installed on the top of the support block. The outer wall of the filter has a through hole, and the top of the filter has a leakage hole. A filter block is installed inside the filter, and an installation groove is opened inside the filter near the lower part of the partition. An installation block is installed at one end of the first drainage board body, and an installation hole is opened on the side of the first drainage board body near the placement groove. This utility model optimizes the road surface and the environment on the road surface by installing a filter on the support block. By setting the insertion block and installation hole at both ends of the drainage board body, the problem of easy loosening of the combined position after two composite drainage boards are combined is solved.

[0004] However, in the aforementioned patent, both the upper and lower ends of the filter are fixedly connected to the inner wall of the drainage plate, which makes its drainage rate fixed and limits the drainage volume. After long-term use, the filter block will gradually become clogged from the bottom, causing the drainage to slow down when the rainfall is heavy, and the hydrostatic pressure of the waterproof layer will increase significantly. Utility Model Content

[0005] The purpose of this invention is to provide a drainage board with a filtration function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a drainage board with a filtration function, comprising: a drainage board and a support rod, wherein a filter cylinder is connected to the inner wall of the drainage board by a snap fastener, the filter cylinder is connected to an elastic rod by the support rod, a base is fixedly connected to the lower end of the elastic rod, a water-absorbing sponge is fixedly connected to the upper end of the base, and the side of the base is in contact with the inner wall of the filter cylinder.

[0007] Preferably, the upper end of the drainage board is in contact with a geotextile layer, the upper side of the geotextile layer is in contact with the waterlogged soil layer, a plug-in block is fixedly connected to one side of the drainage board, the other side of the plug-in block is plugged into other drainage boards, the inner wall of the drainage board is provided with a slot, and the card is fastened to the buckle through the slot, and a filter layer is fixedly connected to the inner wall of the drainage board.

[0008] Preferably, the surface of the filter cartridge is uniformly provided with a plurality of permeation holes, the outer wall of the filter cartridge is in contact with the inner wall of the filter layer, and both the filter layer and the permeation holes are permeable to liquid.

[0009] Preferably, the surface of the drainage plate has several water inlets arranged in an orderly manner. The lower end of the water inlet is fixedly connected to the support rod. An elastic rod is fixedly connected at the midpoint of the lower side of the support rod. The other end of the elastic rod passes through the sliding rod and is fixedly connected to the upper end of the chassis.

[0010] Preferably, the outer wall of the sliding rod is slidably connected to a sleeve, the upper end of the sleeve is fixedly connected to the support rod, the inner wall of the sliding rod is in contact with the surface of the elastic rod, and the lower end of the sliding rod is fixedly connected to the chassis.

[0011] Preferably, the upper end of the chassis is in contact with the water-absorbing sponge, and the side of the chassis is fixedly connected with cleaning bristles, which are in contact with the permeation holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by increasing the weight of the chassis through the water-absorbing sponge, it stretches the elastic rod and gradually increases the space at the top of the chassis, thereby increasing the drainage volume and avoiding the increase of hydrostatic pressure of the waterproof layer caused by bottom blockage. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0014] Figure 2 This is a top view of the filter cartridge of this utility model;

[0015] Figure 3 This is a bottom view of the filter cartridge of this utility model;

[0016] Figure 4 This is a schematic diagram of the cross-section of the elastic rod of this utility model.

[0017] In the diagram: 1. Drainage board; 2. Connecting block; 3. Water-accumulating soil layer; 4. Filter layer; 5. Support rod; 6. Sleeve; 7. Inlet; 8. Buckle; 9. Elastic rod; 10. Water-absorbing sponge; 11. Sliding rod; 12. Chassis; 13. Cleaning bristles; 14. Filter cylinder; 15. Infiltration hole. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a drainage board with a filtration function, including: a drainage board 1 and a support rod 5. The upper end of the drainage board 1 is provided with several water inlet holes. A geotextile layer is installed on the upper end of the drainage board 1. The other side of the geotextile layer is in contact with the water-accumulating soil layer 3. The geotextile layer can effectively prevent large particles such as mud from entering the drainage board 1 through the water inlet 7, thus preventing blockage. A plug-in block 2 is fixedly connected to the side of the drainage board 1. The plug-in block 2 can be plugged into one side of other drainage boards 1. The fixing is simple and facilitates the rapid laying of large-area drainage boards 1. The inner wall of the drainage board 1 is provided with a groove. The lower end of the filter cylinder 14 is fixedly connected with a buckle 8. The groove and the buckle 8 are interlocked to fix the filter cylinder 14. At the same time, the buckle is easy to remove, which facilitates the subsequent inspection and maintenance of the drainage board 1.

[0020] The surface of the filter cylinder 14 is evenly provided with several permeation holes 15. The upper end of the filter cylinder 14 is fixedly connected, and the outer wall of the filter cylinder 14 is in contact with the inner wall of the filter layer 4. Both the filter layer 4 and the permeation holes 15 can allow liquid to pass through. The water inlet 7 on the surface of the drain plate 1 is connected to the filter cylinder 14. The lower end of the water inlet 7 is fixedly connected to the support rod 5. An elastic rod 9 is fixedly connected at the midpoint of the lower side of the support rod 5. The elastic rod 9 has strong elasticity and resilience, which facilitates the reset of the device. The other end of the elastic rod 9 passes through the sliding rod 11 and is fixedly connected to the upper end of the chassis 12. The sliding rod 11 can provide guidance when the elastic rod 9 extends or retracts, so as to prevent the chassis 12 from tilting.

[0021] A sleeve 6 is slidably connected to the outer wall of the sliding rod 11. The upper end of the sleeve 6 is fixedly connected to the support rod 5. The inner wall of the sliding rod 11 is in contact with the surface of the elastic rod 9. The lower end of the sliding rod 11 is fixedly connected to the base 12. The upper end of the base 12 is in contact with the water-absorbing sponge 10. When the water flow from the inlet 7 is too large, the water-absorbing sponge 10 will begin to absorb water and expand, thereby increasing its weight and causing the base 12 to begin to slide down, thereby driving the elastic rod 9 to extend. When the water is drained, the water-absorbing sponge 10 will gradually dry and reduce its weight. A cleaning bristle 13 is fixedly connected to the side of the base 12. The cleaning bristle 13 is in contact with the permeation hole 15. When the base 12 moves, the cleaning bristle 13 can clean the permeation hole 15 to prevent it from becoming clogged.

[0022] In actual use, after verifying that the device is correct, the drainage boards 1 are interlocked and installed in the soil. When the water-bearing soil layer 3 has a high water content or is flooded, water will seep through the water-bearing soil layer 3 and come into contact with the drainage boards 1. Then, it enters the filter cylinder 14 inside the drainage board 1 through the water inlet 7. When the water-absorbing sponge 10 comes into contact with the water, it will absorb the water and increase its weight, which will cause the elastic rod 9 to extend. The support rod 5 will also slide down, and the base 12 will gradually slide down. During this process, the cleaning bristles 13 will pass through the infiltration holes 15 and clean the infiltration holes 15. As the filter cylinder 14 moves downward, the upper space gradually increases, resulting in increased drainage. Water passes through the permeation holes 15 and the filter layer 4, and then enters the gaps in the drainage plate 1 to drain. After the water is drained, the water-absorbing sponge 10 gradually dries, the elastic rod 9 begins to contract, and the sliding rod 11 gradually moves upward under the action of the base 12 until the elastic rod 9 returns to its original position. During this process, the cleaning soft bristles 13 will clean the permeation holes 15 again to prevent blockage. The device as a whole can change the drainage effect according to the amount of water accumulated, thereby avoiding an increase in hydrostatic pressure.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drainage board with a filtration function, characterized in that: The drainage board with filtration function includes: a drainage board (1) and a support rod (5). The inner wall of the drainage board (1) is connected to a filter cylinder (14) by a buckle (8). The filter cylinder (14) is connected to an elastic rod (9) by the support rod (5). The lower end of the elastic rod (9) is fixedly connected to a base plate (12). The upper end of the base plate (12) is fixedly connected to a water-absorbing sponge (10). The side of the base plate (12) is in contact with the inner wall of the filter cylinder (14).

2. A drainage board with a filtration function according to claim 1, characterized in that: The upper end of the drainage board (1) is in contact with a geotextile layer, the upper side of the geotextile layer is in contact with the water-accumulated soil layer (3), a plug-in block (2) is fixedly connected to one side of the drainage board (1), the other side of the plug-in block (2) is plugged into other drainage boards (1), the inner wall of the drainage board (1) is provided with a slot, and it is fastened to the buckle (8) through the slot. A filter layer (4) is fixedly connected to the inner wall of the drainage board (1).

3. A drainage board with a filtration function according to claim 2, characterized in that: The surface of the filter cylinder (14) is uniformly provided with a number of permeation holes (15). The outer wall of the filter cylinder (14) is in contact with the inner wall of the filter layer (4). Both the filter layer (4) and the permeation holes (15) can allow liquid to pass through.

4. A drainage board with a filtration function according to claim 3, characterized in that: The surface of the drainage board (1) is provided with several orderly arranged water inlets (7). The lower end of the water inlet (7) is fixedly connected to the support rod (5). An elastic rod (9) is fixedly connected at the midpoint of the lower side of the support rod (5). The other end of the elastic rod (9) passes through the sliding rod (11) and is fixedly connected to the upper end of the chassis (12).

5. A drainage board with a filtration function according to claim 4, characterized in that: The outer wall of the sliding rod (11) is slidably connected to a sleeve (6), the upper end of the sleeve (6) is fixedly connected to the support rod (5), the inner wall of the sliding rod (11) is in contact with the surface of the elastic rod (9), and the lower end of the sliding rod (11) is fixedly connected to the chassis (12).

6. A drainage board with a filtration function according to claim 5, characterized in that: The upper end of the chassis (12) is in contact with the water-absorbing sponge (10), and a cleaning soft bristle (13) is fixedly connected to the side of the chassis (12), and the cleaning soft bristle (13) is in contact with the permeation hole (15).

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