Highway bridge floor drain hole filtering device
By designing a drainage hole filtration device that combines sliding blocks and compression springs, the problem of clogging of the bridge deck drainage holes during heavy rain was solved, achieving three-stage filtration and emergency drainage, ensuring smooth drainage of the bridge deck and reducing traffic impact.
Patent Information
- Application Number
- CN202422700769.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Existing drainage hole filtration devices on highway bridges are easily clogged by debris such as leaves and branches during heavy rain, preventing water from being discharged in a timely manner and affecting traffic and the lifespan of the bridge.
A drainage hole filtration device for highway bridge decks was designed, comprising a flood discharge mechanism and a filter shell. Through the cooperation of a sliding block and a compression spring, it achieves three-stage filtration and emergency drainage functions. Under sewage pressure, the sliding block opens an additional drainage channel, and combined with a rubber block, it ejects impurities to prevent blockage.
It enables the rapid drainage of large amounts of accumulated water during heavy rain, avoiding traffic congestion and bridge flooding, keeping the bridge surface unobstructed, and reducing the risk of blockage.
Smart Images

Figure CN223497006U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of drainage hole filtration technology, and in particular relates to a drainage hole filtration device for highway bridge decks. Background Technology
[0002] Highway bridge deck drainage systems are important facilities for ensuring the structural safety and service life of bridges as well as road traffic safety. Rainwater will accumulate on the bridge deck under rainy weather conditions. If it cannot be drained in a timely and effective manner, it will cause a series of adverse effects.
[0003] During the rainy season, a large amount of rainwater brings a lot of mud, leaves, garbage and other debris. This debris quickly accumulates on the filter screen, causing it to be covered with a thick layer of blockage in a short time. This severely hinders the flow of water, leading to a large accumulation of water that cannot be discharged in time, affecting traffic and the lifespan of bridges. To address this, we provide a highway bridge surface drainage hole filtration device. Utility Model Content
[0004] The purpose of this invention is to provide a filter device for drainage holes on highway bridge surfaces. When other filter holes are unable to discharge a large amount of water, an emergency drainage hole can be opened again by a sliding block. This solves the problem that existing leaves and branches may become entangled on the filter screen, forming a thick blockage layer that seriously hinders the flow of water.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a filtration device for drainage holes on highway bridge decks, comprising a flood discharge mechanism and a filter shell. The bottom of the flood discharge mechanism is equipped with a filtration and cleaning device. A filter cover plate is fixedly connected to the inner wall of the filter shell. The filter shell has a plurality of filter holes and a limiting hole. The filter cover plate has a groove, and a sliding block is slidably connected to the inner wall of the groove. The sliding block has a water collection tank and a limiting groove. The wastewater can be filtered for large impurities through the filter holes.
[0007] Furthermore, a telescopic rod is fixedly connected to the bottom of the water collection tank, a compression spring is sleeved on the outer surface of the telescopic rod, and a fixing plate is fixedly connected to the bottom of the telescopic rod. The telescopic rod can limit the movement direction of the compression spring.
[0008] Furthermore, the bottom of the compression spring is fixedly connected to the top of the fixed plate, and a fixed shell is fixedly connected to the outer wall of the fixed plate. The top of the fixed shell is fixedly connected to the top of the filter cover. The outer perimeter of the fixed shell is much larger than the outer perimeter of the sliding block, thus allowing sewage to pass through the gap.
[0009] Furthermore, a filter layer one is fixedly connected to the outer wall of the fixed plate, and a filter layer two is fixedly connected to the bottom of the fixed shell one, so that the sewage can be filtered a second time through the filter layer two.
[0010] Furthermore, the filter cleaning device includes a filter cover plate, a fixed shell is slidably connected to the outer wall of the filter cover plate, a plurality of filter holes are provided inside the filter cover plate, and two extraction holes are provided inside the filter cover plate. A dirt storage tank is provided inside the filter cover plate. The extraction holes make routine cleaning work easy.
[0011] Furthermore, a filter plate is fixedly connected to the inner wall of the sludge storage tank, a support column is fixedly connected to the top of the fixed plate, a fixing ring is fixedly connected to the top of the support column, and a limit block is fixedly connected to the inner wall of the limiting groove. The filter plate can effectively filter small amounts of sewage normally.
[0012] Furthermore, a fixing block is fixedly connected to the inner wall of the fixing ring, and a telescopic rod two is fixedly connected to the outer wall of the fixing block. There are two telescopic rods two in total. A compression spring two is sleeved on the outer surface of the telescopic rod two. A pop-out groove is opened inside the fixing ring. A rubber block is slidably connected to the inner wall of the pop-out groove. The rubber block can effectively pop away debris and prevent the water inlet gap from being blocked by impurities.
[0013] Furthermore, the outer wall of the second telescopic rod is fixedly connected to the inner wall of the rubber block, the outer wall of the second compression spring is fixedly connected to the inner wall of the rubber block, and the outer surface of the rubber block is slidably connected to the inner wall of the pop-out groove. The movement direction of the second compression spring can be limited by the second telescopic rod.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model, by setting a sliding block, allows sewage to enter the filter hole one and then the groove during heavy rain or other weather conditions. The sewage then flows into the water collection tank. When the weight of the sewage accumulates to a certain level, the sliding block is pressed down, and the compression spring one is also pressed down. Subsequently, when the sliding block is pressed into the fixed shell one by the sewage, a large amount of sewage flows into the fixed shell one. As the sewage flows into the fixed shell one, it undergoes three filtrations through the filter hole one, the filter layer one, and the filter layer two, making it difficult to clog again. This quickly drains a large amount of water accumulated on the road surface during severe weather, effectively avoiding problems such as road flooding and traffic congestion.
[0016] 2. This utility model incorporates a rubber block. When sewage enters through filter hole two, it flows into the sludge storage tank and then through the filter plate into the sewer. For routine cleaning, simply hold the pull-out hole with two fingers to lift the filter cover and empty the sludge storage tank. During heavy rain, the large amount of rainwater will press down the sliding block. At this time, the limiting block will detach from the outer surface of the rubber block as the sliding block descends. The compression spring two will then pop out from the pop-out slot, pushing the rubber block out as well. This will push away larger impurities around the filter hole, making it difficult for the inlet to be blocked and allowing for smoother drainage between the sliding block and the fixed shell.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a front sectional view of the filter layer of this utility model;
[0021] Figure 3 This is a top sectional view of the water collection tank of this utility model;
[0022] Figure 4 This utility model Figure 3 Enlarged view of A in the middle;
[0023] Figure 5 This is a front sectional view of the sludge storage tank of this utility model.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Flood discharge mechanism; 101. Groove; 102. Filter shell; 103. Filter hole one; 104. Water collection tank; 105. Compression spring one; 106. Telescopic rod one; 107. Fixing plate; 108. Filter layer one; 109. Filter layer two; 110. Fixing shell one; 111. Sliding block; 112. Limiting hole; 113. Limiting groove; 2. Filter cleaning device; 201. Filter cover plate; 202. Filter hole two; 203. Fixing shell two; 204. Sludge storage tank; 205. Filter plate; 206. Support column; 207. Limiting block; 208. Rubber block; 209. Telescopic rod two; 210. Compression spring two; 211. Fixing block; 212. Fixing ring; 213. Pop-out groove; 214. Pull-out hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-5 As shown, this utility model is a filtration device for drainage holes on a highway bridge, including a flood discharge mechanism 1 and a filter shell 102. A filtration and cleaning device 2 is installed at the bottom of the flood discharge mechanism 1. A filter cover plate 201 is fixedly connected to the inner wall of the filter shell 102. Several filter holes 103 are opened inside the filter shell 102. A limiting hole 112 is opened inside the filter shell 102. A groove 101 is opened inside the filter cover plate 201. A sliding block 111 is slidably connected to the inner wall of the groove 101. A water collection trough 104 is opened inside the sliding block 111. A limiting groove 113 is opened inside the sliding block 111. When encountering heavy rain or other weather conditions, sewage will enter the filter holes. The sewage enters the groove 101 through the 103 filter hole, and then flows into the water collection tank 104. When the sewage accumulates to a certain weight, the sliding block 111 is pressed down, and the compression spring 105 is also pressed down. Then, when the sliding block 111 is pressed into the fixed shell 110 by the sewage, a large amount of sewage will flow into the fixed shell 110. When the sewage flows into the fixed shell 110, it is difficult to get clogged again after passing through the filter hole 103, the filter layer 108, and the filter layer 109. This allows for the rapid discharge of a large amount of water from the road surface during severe weather, effectively avoiding problems such as road flooding and traffic congestion.
[0028] Among them, such as Figure 2 As shown, a telescopic rod 106 is fixedly connected to the bottom of the water collection tank 104. A compression spring 105 is sleeved on the outer surface of the telescopic rod 106. A fixing plate 107 is fixedly connected to the bottom of the telescopic rod 106.
[0029] Among them, such as Figure 2 As shown, the bottom of the compression spring 105 is fixedly connected to the top of the fixing plate 107, and the outer wall of the fixing plate 107 is fixedly connected to the fixing shell 110. The top of the fixing shell 110 is fixedly connected to the top of the filter cover plate 201.
[0030] Among them, such as Figure 2 As shown, a filter layer 108 is fixedly connected to the outer wall of the fixed plate 107, and a filter layer 109 is fixedly connected to the bottom of the fixed shell 110.
[0031] Among them, such as Figure 1 As shown, the filter cleaning device 2 includes a filter cover plate 201, a fixed shell 203 is slidably connected to the outer wall of the filter cover plate 201, a number of filter holes 202 are opened inside the filter cover plate 201, two extraction holes 214 are opened inside the filter cover plate 201, and a dirt storage tank 204 is opened inside the filter cover plate 201.
[0032] Among them, such as Figure 5 As shown, a filter plate 205 is fixedly connected to the inner wall of the sludge storage tank 204, a support column 206 is fixedly connected to the top of the fixed plate 107, a fixing ring 212 is fixedly connected to the top of the support column 206, and a limit block 207 is fixedly connected to the inner wall of the limiting groove 113.
[0033] Among them, such as Figure 4 As shown, a fixing block 211 is fixedly connected to the inner wall of the fixing ring 212, and a telescopic rod 209 is fixedly connected to the outer wall of the fixing block 211. There are two telescopic rods 209 in total. A compression spring 210 is sleeved on the outer surface of the telescopic rod 209. A pop-out groove 213 is opened inside the fixing ring 212, and a rubber block 208 is slidably connected to the inner wall of the pop-out groove 213.
[0034] Among them, such as Figure 4 As shown, the outer wall of the telescopic rod 209 is fixedly connected to the inner wall of the rubber block 208, the outer wall of the compression spring 210 is fixedly connected to the inner wall of the rubber block 208, and the outer surface of the rubber block 208 is slidably connected to the inner wall of the pop-out groove 213.
[0035] One specific application of this embodiment is as follows: When encountering heavy rain or other weather conditions, the filter hole 202 may become clogged, preventing the timely discharge of large amounts of sewage. In this case, the sewage will enter the filter hole 103 and then the groove 101. The sewage will then flow into the water collection tank 104. When the sewage accumulates to a certain weight, the sliding block 111 will be pressed down, and the compression spring 105 will also be pressed down. Subsequently, when the sliding block 111 is pressed into the fixed shell 110 by the sewage, a large amount of sewage will flow into the fixed shell 110. Since the sliding block 111 and the fixed shell 110 are of different sizes, a large opening will be created. When the sewage flows into the fixed shell 110, it will first pass through the filter layer 108 for one filtration, then flow into the filter layer 209 for another filtration, and then flow into the sewer. At the same time, after undergoing three filtrations through the filter hole 103, the filter layer 108, and the filter layer 209, the sewage is unlikely to become clogged again, making drainage faster.
[0036] When sewage enters through filter hole 202, it enters the sludge storage tank 204 and then flows into the sewer through filter plate 205. For routine cleaning, simply hold two fingers on the pull-out hole 214 to lift the filter cover 201 and empty the garbage stored in the sludge storage tank 204. During heavy rain, a large amount of rainwater will press down the sliding block 111. At this time, the limit block 207 will detach from the outer surface of the rubber block 208 as the sliding block 111 descends. At this time, the compression spring 210 will pop out from the pop-out slot 213. The compression spring 210 will also pop out the rubber block 208, spreading out the larger impurities that are not filtered in filter hole 103, making it difficult for the inlet to be blocked, and making the drainage between the sliding block 111 and the fixed shell 110 smoother.
[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A filter device for drainage holes on a highway bridge deck, comprising a flood discharge mechanism (1) and a filter shell (102), characterized in that: The bottom of the flood discharge mechanism (1) is provided with a filter cleaning device (2). A filter cover plate (201) is fixedly connected to the inner wall of the filter shell (102). A plurality of filter holes (103) are opened inside the filter shell (102). A limiting hole (112) is opened inside the filter shell (102). A groove (101) is opened inside the filter cover plate (201). A sliding block (111) is slidably connected to the inner wall of the groove (101). A water collection tank (104) is opened inside the sliding block (111). A limiting groove (113) is opened inside the sliding block (111).
2. The highway bridge deck drainage hole filtration device according to claim 1, characterized in that, The bottom of the water collection tank (104) is fixedly connected to a telescopic rod (106), and a compression spring (105) is sleeved on the outer surface of the telescopic rod (106). A fixing plate (107) is fixedly connected to the bottom of the telescopic rod (106).
3. The highway bridge deck drainage hole filtration device according to claim 2, characterized in that, The bottom of the compression spring (105) is fixedly connected to the top of the fixing plate (107), and the outer wall of the fixing plate (107) is fixedly connected to the fixing shell (110), and the top of the fixing shell (110) is fixedly connected to the top of the filter cover plate (201).
4. A highway bridge deck drainage hole filtration device according to claim 3, characterized in that, The outer wall of the fixing plate (107) is fixedly connected with a filter layer one (108), and the bottom of the fixing shell one (110) is fixedly connected with a filter layer two (109).
5. A filter device for drainage holes on a highway bridge deck according to claim 2, characterized in that, The filter cleaning device (2) includes a filter cover plate (201), a fixed shell (203) is slidably connected to the outer wall of the filter cover plate (201), a plurality of filter holes (202) are opened inside the filter cover plate (201), a pull-out hole (214) is opened inside the filter cover plate (201), there are two pull-out holes (214), and a dirt storage tank (204) is opened inside the filter cover plate (201).
6. A filter device for drainage holes on a highway bridge deck according to claim 5, characterized in that, A filter plate (205) is fixedly connected to the inner wall of the sludge storage tank (204), a support column (206) is fixedly connected to the top of the fixed plate (107), a fixing ring (212) is fixedly connected to the top of the support column (206), and a limit block (207) is fixedly connected to the inner wall of the limiting groove (113).
7. A highway bridge deck drainage hole filtration device according to claim 6, characterized in that, A fixing block (211) is fixedly connected to the inner wall of the fixing ring (212), and a telescopic rod (209) is fixedly connected to the outer wall of the fixing block (211). There are two telescopic rods (209). A compression spring (210) is sleeved on the outer surface of the telescopic rod (209). A pop-out groove (213) is opened inside the fixing ring (212), and a rubber block (208) is slidably connected to the inner wall of the pop-out groove (213).
8. A filter device for drainage holes on a highway bridge deck according to claim 7, characterized in that, The outer wall of the telescopic rod (209) is fixedly connected to the inner wall of the rubber block (208), the outer wall of the compression spring (210) is fixedly connected to the inner wall of the rubber block (208), and the outer surface of the rubber block (208) is slidably connected to the inner wall of the pop-out groove (213).