Rainwater drainage device for bridge expansion joint
By designing multi-layered filters and diversion structures at bridge expansion joints, the problems of rainwater diversion devices being clogged by impurities and poor drainage during heavy rains have been solved, achieving efficient rainwater diversion and drainage.
Patent Information
- Application Number
- CN202423214180.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing rainwater drainage devices for bridge expansion joints are prone to pipe blockage due to impurity accumulation, and are difficult to drain water quickly and effectively during heavy rain, affecting drainage efficiency.
It adopts a multi-layer filter screen and diversion structure, including a first filter screen, a second filter screen and a third filter screen, combined with a U-shaped guide channel, connecting pipe and water inlet pipe, and designed as an arc-shaped guide plate and an arched guide strip to realize the diversion and multiple filtration of rainwater and prevent impurities from entering the pipeline.
It effectively prevents pipe blockage, improves the smoothness of rainwater diversion and drainage efficiency, and can promptly discharge rainwater, especially in heavy rain, thus protecting the integrity of the bridge structure.
Smart Images
Figure CN223607738U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge technical field, concretely is bridge expansion joint rainwater drainage device. BACKGROUND
[0002] Bridge is a kind of building that crosses obstacle (such as river, valley, road, railway etc.), it has extremely important function to traffic transport, economic development and regional connection etc.
[0003] Bridge expansion joint rainwater drainage device is mainly used to effectively discharge the rainwater accumulated at bridge expansion joint, when rainwater is accumulated at expansion joint, it can possibly infiltrate into bridge internal structure, causes durability problems such as steel bar corrosion, concrete erosion, rainwater can be drained in time by rainwater drainage device, and the integrity and durability of bridge structure are protected.
[0004] The inventor finds that the prior art has the following problems in the process of realizing the utility model:1, the existing ordinary rainwater drainage device is used, because rainwater often contains various impurities, these impurities are easy to gradually deposit and gather in the pipeline inside the drainage device, and then the pipeline is likely to be blocked, once the pipeline is blocked, rainwater drainage device cannot smoothly drain rainwater, thereby seriously affecting its drainage efficiency;2, the existing ordinary rainwater drainage device is used, and a single pipeline is used to complete the rainwater drainage task, however, in the case that rainfall is large or precipitation is concentrated, it is difficult to quickly and effectively drain and discharge a large amount of rainwater in time, rainwater is likely to accumulate, and the demand of efficient drainage cannot be met. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing bridge expansion joint rainwater drainage device to solve the problems in the background art. To achieve the above object, the utility model provides the following technical scheme: bridge expansion joint rainwater drainage device, including expansion joint main part, the inner wall of expansion joint main part is installed T type support block, the inner wall one side of T type support block is installed with first water diversion component, the top of first water diversion component is installed with first filter screen and first drainage plate, the outer wall one side of first drainage plate and close to bottom is installed with second filter screen, the outer wall of first water diversion component is installed with second drainage plate, the top of second drainage plate is installed with third filter screen, the bottom of second drainage plate is installed with second water diversion component, the top of second water diversion component is installed with arc guide strip, the side of expansion joint main part is installed with connecting plate.
[0006] The first water diversion component includes the U-shaped guide groove installed at the bottom of the first drainage plate, the bottom of the U-shaped guide groove is installed with a plurality of evenly distributed connecting pipes, and the bottom of the connecting pipe is installed with a water diversion pipe.
[0007] Further preferably, the first drainage plate is arc-shaped, and a plurality of circular holes are uniformly and equidistantly arranged on the outer wall of the first drainage plate, and the plurality of circular holes are annularly arranged with the center of the circular hole of the first drainage plate as the center, and a plurality of flow guide grooves are uniformly and equidistantly arranged on the outer wall of the first drainage plate from front to back.
[0008] Further preferably, the outer wall of the expansion joint body is provided with a plurality of uniformly and equidistantly distributed U-shaped reinforcing steel bars, and the expansion joint body and the T-shaped support block are symmetrically distributed about the vertical center line of the connecting plate.
[0009] Further preferably, the inner wall of the U-shaped flow guide groove is provided with a plurality of uniformly and equidistantly distributed circular holes, and the lengths of the plurality of connecting pipes at the bottom of the U-shaped flow guide groove gradually decrease from front to back.
[0010] Further preferably, the first water guide assembly and the second filter screen are symmetrically distributed about the vertical center line of the first filter screen.
[0011] Further preferably, the third filter screen is V-shaped, and the second drainage plates are symmetrically distributed about the vertical center line of the third filter screen.
[0012] Further preferably, the second water guide assembly is consistent in size and structure with the first water guide assembly, the second water guide assembly is provided with three, and the arched flow guide strips are provided with two.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] In the utility model, when the rainwater enters the expansion joint body, the first filter screen filters the rainwater, then the second filter screen and the third filter screen filter the rainwater again when the rainwater flows, so that impurities in the rainwater can be prevented from entering the first water guide assembly and the second water guide assembly, the drainage pipeline is prevented from being blocked, and the smoothness during rainwater drainage is improved.
[0015] In the utility model, when the rainwater falls to the top of the first drainage plate, part of the rainwater falls downward through the circular holes on the first drainage plate, then is guided by the arched flow guide strips and the two second drainage plates and is discharged through the three second water guide assemblies, and when part of the rainwater is guided to both sides through the first drainage plate and the flow guide grooves on the first drainage plate, then is discharged through the two first water guide assemblies, so that the rainwater can be branched and discharged through the two first water guide assemblies and the three second water guide assemblies, and the smoothness during rainwater drainage by the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the front view structure schematic diagram of the utility model;
[0017] Figure 2 It is the front view structure schematic diagram of the utility model;
[0018] Figure 3 It is the first drainage plate structure schematic diagram of the utility model;
[0019] Figure 4 It is the first water diversion assembly structure schematic diagram of the utility model.
[0020] In the drawing: 1, expansion joint main body;2, T type support block;3, first water diversion assembly;301, U type diversion groove;302, connecting pipe;303, water diversion pipe;4, first filter screen;5, first drainage plate;6, second filter screen;7, second drainage plate;8, third filter screen;9, second water diversion assembly;10, arched diversion strip;11, connecting plate. Specific implementation
[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.
[0022] Please refer to Figures 1 to 4 The utility model provides technical scheme: bridge expansion joint rainwater drainage device, including expansion joint main body 1, the inner wall of expansion joint main body 1 is installed T type support block 2, the inner wall one side of T type support block 2 is installed first water diversion assembly 3, and the top of first water diversion assembly 3 is installed first filter screen 4 and first drainage plate 5, and the outer wall one side of first drainage plate 5 and close to the bottom is installed second filter screen 6, and the outer wall of first water diversion assembly 3 is installed second drainage plate 7, and the top of second drainage plate 7 is installed third filter screen 8, and the bottom of second drainage plate 7 is installed second water diversion assembly 9, and the top of second water diversion assembly 9 is installed arched diversion strip 10, and the side of expansion joint main body 1 is installed connecting plate 11.
[0023] First water diversion assembly 3 includes the U type diversion groove 301 installed at the bottom of first drainage plate 5, and the bottom of U type diversion groove 301 is installed with several evenly equidistant distribution connecting pipes 302, and the bottom of connecting pipe 302 is installed with water diversion pipe 303.
[0024] In the embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the first drainage plate 5 is provided in an arc shape, and the outer wall of the first drainage plate 5 is provided with a plurality of uniformly equidistantly distributed circular holes, and the plurality of circular holes are distributed in a ring shape with the circular hole of the first drainage plate 5 as the midpoint, and the outer wall of the first drainage plate 5 is provided with a plurality of uniformly equidistantly distributed flow guide grooves from front to back; after the rainwater is filtered by the first filter screen 4, it falls to the top of the first drainage plate 5, part of the rainwater passes through the circular holes on the first drainage plate 5 and falls downward, and then part of the rainwater is guided to both sides by the first drainage plate 5 and the flow guide grooves on the first drainage plate 5, thereby shunting and draining the rainwater.
[0025] In this embodiment, as shown in Figure 1 and Figure 2 , the outer wall of the expansion joint body 1 is provided with a plurality of uniformly equidistantly distributed U-shaped reinforcing steel bars, and the expansion joint body 1 and the T-shaped support block 2 are symmetrically distributed about the vertical center line of the connecting plate 11; the expansion joint body 1 is installed at the connection of the bridge, and the plurality of U-shaped reinforcing steel bars can improve the stability of the expansion joint body 1 during use.
[0026] In this embodiment, as shown in Figure 1 and Figure 4 , the inner wall of the U-shaped flow guide groove 301 is provided with a plurality of uniformly equidistantly distributed circular holes, and the lengths of the plurality of connecting pipes 302 at the bottom of the U-shaped flow guide groove 301 gradually decrease from front to back; so that the water diversion pipe 303 is inclined downward from back to front, and the circular holes on the U-shaped flow guide groove 301 correspond one-to-one with the flow guide grooves on the first drainage plate 5, and when the rainwater that is guided to both sides by the first drainage plate 5 and the flow guide grooves on the first drainage plate 5 enters the U-shaped flow guide groove 301, it can be smoothly discharged from the water diversion pipe 303, thereby guiding the rainwater.
[0027] In this embodiment, as shown in Figure 1 and Figure 2 , the first water diversion assembly 3 and the second filter screen 6 are symmetrically distributed about the vertical center line of the first filter screen 4; before the rainwater enters the first water diversion assembly 3, the first filter screen 4 and the second filter screen 6 double-filter the rainwater, which can prevent impurities in the rainwater from entering the pipeline in the first water diversion assembly 3, causing the pipeline to be blocked and the device to be unable to normally guide the rainwater.
[0028] In this embodiment, as shown in Figure 1 and Figure 2 , the third filter screen 8 is provided in a V shape, and the second drainage plates 7 are symmetrically distributed about the vertical center line of the third filter screen 8; the third filter screen 8 can filter the rainwater that falls through the circular holes on the first drainage plate 5, thereby preventing impurities in the rainwater from entering the second water diversion assembly 9, causing the pipeline to be blocked and the device to be unable to normally guide the rainwater, and the second drainage plates 7 can guide the rainwater.
[0029] In this embodiment, as shown in Figure 1 and Figure 2 The second water guide assembly 9 is consistent in size with the first water guide assembly 3, and the second water guide assembly 9 is provided with three, and the arched flow guide strip 10 is provided with two; the three second water guide assemblies 9 are connected through the two arched flow guide strips 10; after the rainwater is filtered through the third filter screen 8, the two arched flow guide strips 10 and the two second flow guide plates 7 guide the rainwater, and then the rainwater enters the three second water guide assemblies 9 respectively, and then the rainwater is drained by the three second water guide assemblies 9.
[0030] The use method and advantages of the utility model are as follows:
[0031] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 First, the rainwater enters the expansion joint main body 1, the first filter screen 4 filters the rainwater, and then the rainwater falls to the top of the first flow guide plate 5, part of the rainwater falls to the third filter screen 8 through the circular holes on the first flow guide plate 5, and then part of the rainwater flows to both sides through the first flow guide plate 5 and the flow guide groove on the first flow guide plate 5, and then enters the U-shaped flow guide groove 301 after being filtered by the second filter screen 6, and then the rainwater enters the water guide pipe 303 through the plurality of connecting pipes 302, and then is drained through the water guide pipe 303, and the rainwater falling on the third filter screen 8 is filtered by the third filter screen 8, and then enters the U-shaped flow guide groove 301 of the three second water guide assemblies 9 respectively after being guided by the arched flow guide strip 10 and the two second flow guide plates 7, and then is drained through the water guide pipe 303 on the second water guide assembly 9.
[0032] The basic principle, main characteristics and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. Bridge expansion joint rainwater drainage device, comprising an expansion joint main body (1), characterized in that: The inner wall of the expansion joint body (1) is provided with a T-shaped supporting block (2), the inner wall of the T-shaped supporting block (2) is provided with a first water guide assembly (3), the top of the first water guide assembly (3) is provided with a first filter screen (4) and a first water guide plate (5), the outer wall of the first water guide plate (5) is provided, close to the bottom, with a second filter screen (6), the outer wall of the first water guide assembly (3) is provided with a second water guide plate (7), the top of the second water guide plate (7) is provided with a third filter screen (8), the bottom of the second water guide plate (7) is provided with a second water guide assembly (9), the top of the second water guide assembly (9) is provided with an arc-shaped water guide strip (10), and one side of the expansion joint body (1) is provided with a connecting plate (11). The first water guide assembly (3) comprises a U-shaped water guide groove (301) arranged at the bottom of the first water guide plate (5), and the bottom of the U-shaped water guide groove (301) is provided with a plurality of connecting pipes (302) evenly and equidistantly distributed.
2. The bridge joint rainwater drainage device according to claim 1, characterized in that: The first water guide plate (5) is arc-shaped, and a plurality of circular holes are evenly and equidistantly arranged on the outer wall of the first water guide plate (5) and are annularly distributed with the circular hole of the first water guide plate (5) as the midpoint, and a plurality of water guide grooves are evenly and equidistantly arranged on the outer wall of the first water guide plate (5) from front to back.
3. The bridge joint rainwater drainage device according to claim 1, characterized in that: The outer wall of the expansion joint body (1) is provided with a plurality of U-shaped reinforcing steel bars evenly and equidistantly distributed, and the expansion joint body (1) and the T-shaped supporting block (2) are symmetrically distributed about the vertical center line of the connecting plate (11).
4. The bridge joint rainwater drainage device according to claim 1, characterized in that: The inner wall of the U-shaped water guide groove (301) is provided with a plurality of circular holes evenly and equidistantly distributed, and the lengths of the plurality of connecting pipes (302) at the bottom of the U-shaped water guide groove (301) gradually decrease from front to back.
5. The bridge joint rainwater drainage device according to claim 1, characterized in that: The first water guide assembly (3) and the second filter screen (6) are symmetrically distributed about the vertical center line of the first filter screen (4).
6. The bridge joint rainwater drainage device according to claim 1, characterized in that: The third filter screen (8) is V-shaped, and the second water guide plates (7) are symmetrically distributed about the vertical center line of the third filter screen (8).
7. The bridge joint rainwater drainage device according to claim 1, characterized in that: The second water guide assembly (9) is consistent in size and structure with the first water guide assembly (3), the second water guide assembly (9) is provided with three, and the arc-shaped water guide strips (10) are provided with two.