A maintenance-free self-falling ball type water drainer for bridge deck

Abstract

The utility model discloses a bridge floor maintenance -free self -dropping ball type water drainer relates to water drainer technical field, including bridge, ring baffle, PVC water drain pipe and PE ball, is seted up in the bridge floor one side of bridge with the water drain hole of being provided with on the bridge, and the ring baffle is seted up with a plurality of first filter holes on, PVC water drain pipe is connected with the side of water drain hole away from ring baffle, PE ball sets up in the area surrounded by ring baffle, and the diameter of PE ball is greater than the aperture of PVC water drain pipe, can be under the activity of water flow and open water drain hole, through the dynamic cooperation of PE ball and water drain hole, the stress balance design of combining slide and counterweight, automatic switching of automatic discharge and plugging of rainwater has been realized, when raining, rely on the water flow impact force and push PE ball and open the passage, when no rain, rely on the gravity of counterweight and reset and block fast, need not manual intervention to complete maintenance operation.

Description

Technical Field

[0001] This utility model relates to the field of drainage device technology, and in particular to a maintenance-free self-falling ball drainage device for bridge decks. Background Technology

[0002] High-speed railway bridge decks have much higher requirements for structural stability and durability than ordinary bridges due to the high speed and heavy load of trains. The quality of waterproofing construction is a core guarantee. If rainwater cannot be drained from the bridge deck in time, the water will seep into the bridge deck pavement layer, erode the reinforced concrete structure, and cause steel corrosion and concrete cracking. This will not only shorten the service life of the bridge deck, but may also cause track deformation, seriously threatening the safety of train operation.

[0003] Existing drainage devices mostly rely on fixed channels for drainage and lack automatic control functions. If the channel is too small during rainfall, water will easily accumulate. If the channel is too large, debris will easily enter and block the pipe when there is no rain. The simple sealing structure is also prone to sealing failure or drainage obstruction due to force imbalance. Therefore, it is necessary to propose a maintenance-free self-falling ball drainage device for bridge decks. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing drainage devices, which rely on fixed channels for drainage, lack automatic control functions, and are prone to water accumulation if the channel is too small during rainfall, or easy for debris to enter and block the pipe if the channel is too large during dry weather. Therefore, this invention proposes a maintenance-free self-falling ball drainage device for bridge decks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A maintenance-free, self-falling ball-type drain for bridge decks includes a bridge, an annular baffle, a PVC drain pipe, and a PE ball.

[0007] The bridge is provided with drainage holes, and the annular baffle is arranged around the drainage holes on one side of the bridge deck, and the annular baffle is provided with a plurality of first filter holes.

[0008] The PVC drain pipe is connected to the drain hole on the side away from the annular baffle. The PE ball is located in the area enclosed by the annular baffle, and the diameter of the PE ball is larger than the diameter of the PVC drain pipe, so that it can be moved to block or open the drain hole under the action of water flow.

[0009] The above technical solution further includes:

[0010] Preferably, a filter screen is fixedly installed inside the PVC drain pipe, and the filter screen has a plurality of second filter holes, the diameter of which is smaller than the diameter of the PE ball.

[0011] Preferably, it also includes a slide bar and a counterweight;

[0012] The end of the slide bar near the bridge is fixedly connected to the PE ball, and the end of the slide bar away from the PE ball passes through the filter screen and is fixedly connected to the counterweight. The counterweight is located on the side of the filter screen away from the drain hole, and the weight of the counterweight is matched with the buoyancy of the PE ball.

[0013] Preferably, the inner diameter of the annular baffle is larger than the diameter of the PE ball.

[0014] Preferably, the multiple sets of the first filter holes are evenly distributed circumferentially along the annular baffle.

[0015] Preferably, the PVC drain pipe is sealed to the bridge via a flange structure, and the filter screen is detachably connected to the inner wall of the PVC drain pipe.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, the automatic switching between automatic rainwater discharge and sealing is achieved by the dynamic cooperation between the PE ball and the drain hole, combined with the force balance design of the slide bar and the counterweight.

[0018] 2. In this utility model, the PE ball opens the channel by the impact force of the water flow during rainfall, and quickly resets and seals the channel by the gravity of the counterweight when there is no rain. Maintenance work can be completed without manual intervention. At the same time, the first filter hole of the annular baffle and the second filter hole of the filter screen form a dual filtration mechanism, which can effectively intercept debris on the bridge surface and prevent the drain pipe from being blocked. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a maintenance-free, self-falling ball-type drain for bridge decks proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Bridge; 101. Drainage hole; 2. Annular baffle; 201. First filter hole; 3. PVC drainage pipe; 301. Filter screen; 302. Second filter hole; 4. PE ball; 5. Sliding rod; 6. Counterweight. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] like Figures 1-3 As shown, the present invention proposes a maintenance-free self-falling ball-type drain for bridge decks, comprising a bridge 1, an annular baffle 2, a PVC drain pipe 3, and a PE ball 4.

[0026] A drainage hole 101 is provided on the bridge 1, and an annular baffle 2 is arranged around the drainage hole 101 on one side of the bridge deck of the bridge 1, and a plurality of first filter holes 201 are provided on the annular baffle 2.

[0027] The PVC drain pipe 3 is connected and installed on the side of the drain hole 101 away from the annular baffle 2. The PE ball 4 is installed in the area enclosed by the annular baffle 2, and the diameter of the PE ball 4 is larger than the diameter of the PVC drain pipe 3. It can be moved to block or open the drain hole 101 under the action of water flow.

[0028] Furthermore, during rainfall, rainwater falls on the bridge surface of bridge 1. After being initially filtered by the first filter hole 201 on the annular baffle 2, impurities are collected inside the annular baffle 2. When the rainwater accumulates to a certain amount, the impact force of the water flow will push the PE ball 4, causing it to no longer block the drain hole 101. The rainwater then flows into the PVC drain pipe 3 through the drain hole 101 and is discharged. When there is no rain or the water volume is small, the PE ball 4, with the help of its own gravity, re-seals the drain hole 101 to prevent debris from entering the PVC drain pipe 3, thus achieving maintenance-free automatic drainage and sealing.

[0029] A filter screen 301 is fixedly installed inside the PVC drain pipe 3. The filter screen 301 has multiple second filter holes 302. The diameter of the second filter holes 302 is smaller than the diameter of the PE ball 4.

[0030] Furthermore, when rainwater flows into the PVC drain pipe 3 from the drain hole 101, it passes through the filter screen 301. The second filter hole 302 on the filter screen 301 can further filter out small impurities in the rainwater. At the same time, since the diameter of the second filter hole 302 is smaller than the diameter of the PE ball 4, it can prevent the PE ball 4 from falling into the deeper part of the PVC drain pipe 3, ensuring that the PE ball 4 can normally block or open the drain hole 101.

[0031] It also includes slide bar 5 and counterweight 6;

[0032] The end of the slide rod 5 closest to the bridge 1 is fixedly connected to the PE ball 4. The end of the slide rod 5 away from the PE ball 4 passes through the filter screen 301 and is fixedly connected to the counterweight 6. The counterweight 6 is located on the side of the filter screen 301 away from the drain hole 101, and the weight of the counterweight 6 is matched with the buoyancy of the PE ball 4.

[0033] Furthermore, when rainwater gathers and pushes the PE ball 4 to open the drain hole 101, the slide rod 5 can restrict the movement direction of the PE ball 4 to prevent it from deviating from the position of the drain hole 101. When the water volume decreases, the counterweight 6 uses its own weight to pull the PE ball 4 back to its original position through the slide rod 5, quickly sealing the drain hole 101. Moreover, the weight of the counterweight 6 is matched with the buoyancy of the PE ball 4, which can balance the force on the PE ball 4 in the water, ensuring that the PE ball 4 can open and close according to the water volume. At the same time, the filter screen 301 can guide the movement of the slide rod 5.

[0034] The inner diameter of the annular baffle 2 is larger than the diameter of the PE ball 4.

[0035] Multiple sets of first filter holes 201 are evenly distributed circumferentially along the annular baffle 2.

[0036] Furthermore, when rainwater collects inside the annular baffle 2, because the inner diameter of the annular baffle 2 is larger than the diameter of the PE ball 4, it provides sufficient space for the PE ball 4 to move smoothly under the action of water flow to open the drainage hole 101. At the same time, multiple sets of first filter holes 201 evenly distributed around the annular baffle 2 can evenly receive rainwater from the bridge surface from all sides of the annular baffle 2, avoiding local accumulation of rainwater on the bridge surface, and can also perform preliminary filtration of rainwater at the same time. Moreover, the evenly distributed structure will not affect the overall water intake efficiency due to blockage of local holes, ensuring the stability of the drainage process.

[0037] The PVC drain pipe 3 and the bridge 1 are sealed together by a flange structure, and the filter screen 301 is detachably connected to the inner wall of the PVC drain pipe 3.

[0038] Furthermore, when rainwater flows into the PVC drain pipe 3 through the drain hole 101 and is discharged, the flange structure between the PVC drain pipe 3 and the bridge 1 can effectively prevent rainwater from leaking through the connection gap, avoid erosion of the bridge 1 structure, and ensure the sealing of the drainage process. When the filter screen 301 becomes clogged due to long-term filtration of impurities, affecting the flow of rainwater, the filter screen 301 can be quickly removed for cleaning or replacement through the detachable connection between the filter screen 301 and the inner wall of the PVC drain pipe 3, without disassembling the entire drain device, ensuring that the drainage process can continue stably.

[0039] In this embodiment, the specific implementation is as follows: during rainfall, rainwater on the bridge surface is initially filtered by the first filter holes 201 that are evenly distributed circumferentially on the annular baffle 2 and then collected inside the annular baffle 2. Since the inner diameter of the annular baffle 2 is larger than the diameter of the PE ball 4, it provides space for the PE ball 4 to move. When the water volume reaches a certain level, the water flow pushes the PE ball 4 away from the drain hole 101. The rainwater flows into the PVC drain pipe 3 through the drain hole 101 and is further filtered by the second filter holes 302 on the filter screen 301 to filter out fine impurities. At the same time, the sliding rod 5 restricts the movement direction of the PE ball 4, the filter screen 301 guides the sliding rod 5, and the hole diameter of the PVC drain pipe 3 is smaller than the diameter of the PE ball 4 to prevent it from falling.

[0040] When there is no rain or the water volume decreases, the counterweight 6, with the gravity of the PE ball 4 adapted to the buoyancy of the PE ball 4, pulls the PE ball 4 to reset and seal the drain hole 101 through the slide rod 5, preventing debris from entering. The flange connection between the PVC drain pipe 3 and the bridge 1 ensures a tight seal and prevents leakage. The filter screen 301 is designed to be detachable for easy cleaning and replacement, ensuring continuous and stable operation of the whole system and achieving maintenance-free automatic drainage and sealing.

[0041] 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 maintenance-free, self-falling ball-type drain for bridge decks, characterized in that, Includes a bridge (1), an annular baffle (2), a PVC drainage pipe (3), and a PE ball (4); The bridge (1) is provided with a drainage hole (101), and the annular baffle (2) is arranged around the drainage hole (101) on one side of the bridge deck of the bridge (1), and the annular baffle (2) is provided with a plurality of first filter holes (201). The PVC drain pipe (3) is connected to the drain hole (101) on the side away from the annular baffle (2). The PE ball (4) is located in the area enclosed by the annular baffle (2), and the diameter of the PE ball (4) is larger than the diameter of the PVC drain pipe (3). It can block or open the drain hole (101) under the action of water flow.

2. The bridge deck maintenance-free self-falling ball type drain according to claim 1, characterized in that, The PVC drain pipe (3) is fixedly equipped with a filter screen (301), and the filter screen (301) has a plurality of second filter holes (302), the diameter of the second filter holes (302) being smaller than the diameter of the PE ball (4).

3. A bridge deck maintenance-free self-falling ball type drain according to claim 2, characterized in that, It also includes a slide bar (5) and a counterweight (6); The end of the slide rod (5) near the bridge (1) is fixedly connected to the PE ball (4), and the end of the slide rod (5) away from the PE ball (4) passes through the filter screen (301) and is fixedly connected to the counterweight (6). The counterweight (6) is located on the side of the filter screen (301) away from the drain hole (101), and the weight of the counterweight (6) is matched with the buoyancy of the PE ball (4).

4. A bridge deck maintenance-free self-falling ball type drain according to claim 3, characterized in that, The inner diameter of the annular baffle (2) is larger than the diameter of the PE ball (4).

5. A maintenance-free, self-falling ball-type drain for bridge decks according to claim 4, characterized in that, Multiple sets of the first filter holes (201) are evenly distributed circumferentially along the annular baffle (2).

6. A maintenance-free, self-falling ball-type drain for bridge decks according to claim 5, characterized in that, The PVC drain pipe (3) is sealed to the bridge (1) through a flange structure, and the filter screen (301) is detachably connected to the inner wall of the PVC drain pipe (3).

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