Drainage device with anti-blocking function for highway bridge
By using a motor-driven screw and cam mechanism to vibrate the filter screen, and combined with a scraper to remove impurities from the filter screen, the problem of filter screen clogging is solved, and the self-cleaning and efficient operation of the bridge drainage device is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-27
AI Technical Summary
Impurities in the mesh of the filter screen in the existing bridge drainage system cannot be effectively removed, leading to filter clogging and affecting drainage efficiency.
The filter screen is shaken by a motor-driven screw and cam mechanism, and a scraper removes impurities from the filter screen to achieve a self-cleaning function.
It effectively prevents filter clogging, ensures continuous and efficient operation of the drainage device, and improves the cleanliness and reliability of the bridge drainage system.
Smart Images

Figure CN224047898U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge drainage field, more specifically, relate to a highway bridge with prevent drainage device of blocking function. BACKGROUND
[0002] Bridge drainage pipe is an important component in bridge structure, mainly used for discharging rainwater, melted snow and the like on the bridge deck to the river or drainage ditch on both sides of the bridge, which helps to keep the bridge deck dry and clean, avoids waterlogging to cause damage to the bridge structure, and improves the service life of the bridge.
[0003] Chinese patent authorization announcement number: CN220318357U provides a bridge drainage pipe anti-blocking device, the scheme includes a water collecting hopper, the lower surface of the water collecting hopper is provided with a drainage pipe body;Anti-blocking assembly, the anti-blocking assembly is fixedly connected to the outer surface of the drainage pipe body.
[0004] But the above-mentioned patent, only through the single blade to scrape the filter screen attached to, because the blade does not contact the impurities in the filter screen mesh, and because the filter screen itself cannot be shaken, the impurities in the mesh cannot be effectively removed.
[0005] Therefore, aiming at the above problems, a highway bridge with a drainage device with anti-blocking function is provided. INVENTION CONTENTS
[0006] 1. Technical problem to be solved
[0007] In view of the problems existing in the prior art, the purpose of the utility model is to provide a highway bridge with a drainage device with anti-blocking function to solve the problems raised in the background art.
[0008] 2. Technical scheme
[0009] To solve the above problems, the utility model adopts the following technical scheme.
[0010] A highway bridge with a drainage device with anti-blocking function, comprising a mounting frame, the outer part of the mounting frame is fixedly connected with an outer frame, the lower part of the mounting frame is slidably connected with a filter screen, both sides of the mounting frame are rotatably connected with L-shaped rods, one end of the two L-shaped rods is rotatably connected with one side of the filter screen, the middle part of one side of the two L-shaped rods is rotatably connected with a first tension spring, and the first tension spring is rotatably connected with one side of the mounting frame.
[0011] Further, both sides of the filter screen are rotatably connected with connecting rods, one end of the two connecting rods away from the connecting rod is rotatably connected with a second tension spring, and one end of the second tension spring away from the connecting rod is rotatably connected with one side of the mounting frame.
[0012] Further, two said L-shaped rods are fixedly connected with stress plates, a screw rod is rotatably connected in the installation frame, and the two ends of the screw rod are fixedly connected with cams, and the two cams are located below the stress plates.
[0013] Further, a motor is fixedly connected outside the outer frame, and an output end of the motor is fixedly connected with one end of the screw rod through the outer frame and the installation frame.
[0014] Further, a scraper is threadedly connected to the outer wall of the screw rod, and the scraper is slidably connected inside the installation frame, and the cutting edge of the scraper is located above the filter screen.
[0015] Further, a drain pipe is fixedly connected above the installation frame.
[0016] Further, a water collecting bucket is fixedly connected above the drain pipe.
[0017] 3. Beneficial effects
[0018] Compared with the prior art, the utility model has the advantages that:
[0019] In the scheme, the motor is started to drive the screw rod to rotate, the cams at the two ends of the screw rod rotate synchronously, the stress plates of the L-shaped rods are periodically lifted, the L-shaped rods swing around the rotating point of the installation frame, the filter screen is shaken up and down, the connecting rods and the No. 2 extension spring on the two sides of the filter screen cooperate with the No. 1 extension spring on one side of the L-shaped rod to assist in buffering the shaking of the filter screen, so that the filter screen is stable, the shaking effectively shakes off the sundries on the filter screen, realizes self-cleaning, reduces the blockage of the filter screen, and guarantees the continuous and efficient operation of the drainage device. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model;
[0021] Figure 2 It is a connection relationship schematic view between the installation frame and the outer frame in the utility model;
[0022] Figure 3 It is a shaking principle schematic view of the filter screen in the utility model;
[0023] Figure 4 It is a position relationship schematic view between the screw rod and the cam in the utility model.
[0024] Explanation of reference numerals in the drawing:
[0025] 1, installation frame; 11, drain pipe; 12, water collecting bucket; 13, outer frame; 14, motor; 15, filter screen; 16, screw rod; 17, cam; 18, L-shaped rod; 19, scraper; 2, No. 1 extension spring; 21, connecting rod; 22, No. 2 extension spring; 23, stress plate. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be apparently 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, rather than all the embodiments, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the utility model belong to the range protected by the utility model.
[0027] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms 'upper', 'lower', 'inner', 'outer', 'top / bottom end' and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms 'first','second' are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0028] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms'mounting', 'provided with','sleeved / connected', 'connected' and the like should be understood in a broad sense, for example, 'connected' can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0029] Embodiment one
[0030] Please refer to Figures 1-4 A drainage device with anti-blocking function for highway bridge, including installation frame 1, the outside of installation frame 1 is fixedly connected with outer frame 13, the lower of installation frame 1 is slidably connected with filter screen 15, both sides of installation frame 1 are rotatably connected with L-shaped rod 18, one end of two L-shaped rods 18 is rotatably connected with one side of filter screen 15, the middle of one side of two L-shaped rods 18 is rotatably connected with one pull spring 2, two pull springs 2 are rotatably connected with one side of installation frame 1, both sides of filter screen 15 are rotatably connected with connecting rod 21, the end away from connecting rod 21 of two connecting rods 21 is rotatably connected with two pull springs 22, the end away from connecting rod 21 of two pull springs 22 is rotatably connected with one side of installation frame 1, one side of two L-shaped rods 18 is fixedly connected with stress plate 23, the inside of installation frame 1 is rotatably connected with screw rod 16, both ends of screw rod 16 are fixedly connected with cam 17, two cams 17 are located below stress plate 23, the outside of outer frame 13 is fixedly connected with motor 14, the output end of motor 14 passes through outer frame 13 and installation frame 1 and is fixedly connected with one end of screw rod 16.
[0031] In this embodiment, when the motor 14 starts, its output end drives the screw rod 16 to rotate, and the cam 17 fixed at both ends of the screw rod 16 rotates synchronously. During the rotation of the cam 17, the force plate 23 on one side of the L-shaped rod 18 is periodically lifted, so that the L-shaped rod 18 swings around the rotation point of the mounting frame 1. Since one end of the L-shaped rod 18 is rotationally connected with the filter screen 15, the swinging of the L-shaped rod 18 drives the filter screen 15 to shake in the up-down direction. At the same time, the connecting rod 21 and the No. 2 tension spring 22 on both sides of the filter screen 15, and the No. 1 tension spring 2 on one side of the L-shaped rod 18, assist and buffer the shaking of the filter screen 15, ensuring the stability of the filter screen 15 during the shaking. The shaking can effectively shake off the sundries attached to the filter screen 15, realize the self-cleaning function of the filter screen 15, and greatly reduce the situation that the filter screen 15 is blocked, so as to ensure that the drainage device can continuously and efficiently operate.
[0032] Embodiment Two
[0033] Please refer to Figures 1-4 A drainage device with anti-blocking function for highway bridges, the outer wall of the screw rod 16 is threadedly connected with a scraper 19, the scraper 19 is slidingly connected in the inside of the mounting frame 1, the cutting edge of the scraper 19 is located above the filter screen 15, the upper side of the mounting frame 1 is fixedly connected with a drain pipe 11, and the upper side of the drain pipe 11 is fixedly connected with a water collecting hopper 12.
[0034] In this embodiment, the water collecting hopper 12 rapidly collects the rainwater on the bridge surface by virtue of its funnel-shaped appearance and large opening area. After the rainwater enters the water collecting hopper 12, its unique flow guiding structure guides the water flow to flow to the drain pipe 11, accelerates the flow rate of the rainwater entering the drain pipe 11, and prevents the rainwater from accumulating in the water collecting hopper 12,
[0035] The rainwater entering the drain pipe 11 immediately flows to the mounting frame 1 and is initially filtered by the filter screen 15. The filter screen 15 can intercept sundries such as leaves and branches carried by the rainwater, and prevent these impurities from entering the drain pipe 11 to cause blockage,
[0036] The motor 14 is started, and the output end drives the screw rod 16 to rotate synchronously, the cam 17 at both ends of the screw rod 16 rotates, and the force plate 23 on one side of the L-shaped rod 18 is periodically lifted, the L-shaped rod 18 swings around the rotating point of the mounting frame 1, and drives the filter screen 15 to shake up and down, and shakes off the part of loose sundries attached to the filter screen 15, and at the same time, due to the buffering and auxiliary action of the connecting rod 21 and the second tension spring 22 on both sides of the filter screen 15 and the first tension spring 2 on one side of the L-shaped rod 18, the filter screen 15 is stably shaken, and the scraper 19 connected with the screw rod 16 through threads moves linearly under the guidance of the slide rail in the mounting frame 1, the blade of the scraper 19 scrapes off the stubborn sundries such as sludge clumps and compacted leaf accumulations on the surface of the filter screen 15, and cooperates with the shaking cleaning mechanism of the filter screen 15 to further improve the cleaning effect of the filter screen 15.
[0037] Working principle: The water collector 12 rapidly collects the rainwater on the bridge surface due to its funnel-shaped appearance and large opening area, the unique water guide structure guides the water flow to flow to the drain pipe 11, accelerates the flow rate of the rainwater entering the drain pipe 11, and prevents the rainwater from accumulating in the water collector 12,
[0038] The rainwater entering the drain pipe 11 immediately flows to the mounting frame 1 and is initially filtered through the filter screen 15, the filter screen 15 can intercept the leaves, branches and other sundries carried in the rainwater, and prevent these sundries from entering the drain pipe 11 and causing blockage,
[0039] The motor 14 is started, and the output end drives the screw rod 16 to rotate synchronously, the cam 17 at both ends of the screw rod 16 rotates, and the force plate 23 on one side of the L-shaped rod 18 is periodically lifted, the L-shaped rod 18 swings around the rotating point with the mounting frame 1, drives the filter screen 15 to shake up and down, shakes off the part of the loose sundries attached to the filter screen 15, and at the same time, due to the buffering and auxiliary action of the connecting rod 21 and the No. 2 tension spring 22 rotatingly connected on both sides of the filter screen 15 and the No. 1 tension spring 2 on one side of the L-shaped rod 18, the stable shaking of the filter screen 15 is ensured, and in the rotating process of the screw rod 16, the scraper 19 screwedly connected with the screw rod 16 does linear motion under the guide of the slide rail in the mounting frame 1, the blade of the scraper 19 scrapes off the stubborn sundries, such as sludge clumps, compacted leaf accumulation and the like, which are difficult to be removed by shaking, cooperates with the shaking cleaning mechanism of the filter screen 15, and further improves the cleaning effect of the filter screen 15.
[0040] The above merely describes a preferred embodiment of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the improvement concept of the present application, should be covered in the protection scope of the present application.
Claims
1. A drainage device with anti-blocking function for highway bridges, comprising a mounting frame (1), characterized in that: The outside of mounting frame (1) is fixedly connected with outer frame (13), the lower side of mounting frame (1) is slidably connected with filter screen (15), both sides of mounting frame (1) are rotatably connected with L-shaped rod (18), one end of two L-shaped rods (18) is rotatably connected with one side of filter screen (15), the middle of one side of two L-shaped rods (18) is rotatably connected with no.
2. The drainage device with anti-blocking function for highway bridges according to claim 1, characterized in that: Both sides of filter screen (15) are rotatably connected with connecting rod (21), one end of two connecting rods (21) away from connecting rod (21) is rotatably connected with no.
3. The drainage device with anti-blocking function for highway bridges according to claim 2, characterized in that: Two L-shaped rods (18) are rotatably connected with stress plate (23), the inside of mounting frame (1) is rotatably connected with screw rod (16), both ends of screw rod (16) are fixedly connected with cam (17), two cams (17) are located below stress plate (23).
4. The drainage device with anti-blocking function for highway bridges according to claim 3, characterized in that: The outside of outer frame (13) is fixedly connected with motor (14), the output end of motor (14) is fixedly connected with one end of screw rod (16) through outer frame (13) and mounting frame (1).
5. The drainage device with anti-blocking function for highway bridges according to claim 4, characterized in that: The outer wall of screw rod (16) is threadedly connected with scraper (19), the inside of mounting frame (1) is slidably connected with scraper (19), the cutting edge of scraper (19) is located above filter screen (15).
6. The drainage device with anti-blocking function for highway bridges according to claim 1, characterized in that: The upper side of mounting frame (1) is fixedly connected with drain pipe (11).
7. The drainage device with anti-blocking function for highway bridges according to claim 6, characterized in that: The upper side of drain pipe (11) is fixedly connected with water collecting hopper (12).
Citation Information
Patent Citations
Bridge drain pipe anti-blocking device
CN220318357U