A sunken green belt drainage device for municipal roads

Abstract

The utility model discloses a sunken green belt drainage device for municipal road belongs to rainwater collection processing technical field, including box and the filter assembly of detachable accommodation in the box, the filter assembly includes filter drum, and the outer wall fixed connection of filter drum has rolling assembly, the rolling assembly includes gyro wheel, and the gyro wheel rolling abuts at the inner wall of box, the inner wall fixed connection of filter drum has the limit strip, second handle, the filter assembly still includes the filter board of overlapping on the limit strip and the filter screen of being located filter board below, still include the cover board of being provided in the top of box, is equipped with the filter cover on the cover board. The utility model discloses through setting rolling assembly, utilizes the rolling cooperation of gyro wheel and box inner wall to replace sliding friction, makes the filter assembly's placement and taking out process very convenient laborsaving, simultaneously, through the layered setting of filter board and filter screen, has realized step by step filtration, and it is not easy to block, and the filtering effect is good.

Description

Technical Field

[0001] This utility model relates to the field of rainwater harvesting and treatment technology, and in particular to a sunken green belt drainage device for municipal roads. Background Technology

[0002] With the acceleration of urbanization, the area of ​​hard paved surfaces in cities is constantly increasing, leading to ineffective rainwater infiltration and surface runoff, causing water resource loss and urban flooding. Therefore, the effective collection, filtration, and reuse of rainwater has become a crucial part of urban construction. In sponge city facilities such as sunken green belts, a drainage device for municipal roads is typically installed to pre-treat the collected rainwater.

[0003] A typical existing sunken green belt drainage system for municipal roads includes an underground housing and a filter assembly inside the housing. When rainwater flows into the system, the filter assembly traps impurities such as leaves and silt, and the purified rainwater is then discharged. To ensure the filtration effect, the filter assembly needs to be periodically removed from the housing to empty and clean the accumulated debris.

[0004] However, in actual use, the filter assembly becomes very heavy when filled with rainwater-soaked silt and debris. Furthermore, the direct contact between its outer wall and the inner wall of the housing during removal or insertion generates significant friction, especially after a period of use when small deposits can clog the gaps, further increasing friction. This makes cleaning the filter assembly extremely difficult and inconvenient, reducing maintenance efficiency.

[0005] Therefore, this utility model proposes a sunken green belt drainage device for municipal roads to address the shortcomings of existing technologies. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a sunken green belt drainage device for municipal roads, aiming to improve the problems in the prior art where the filter component of a sunken green belt drainage device for municipal roads becomes heavy after absorbing water and debris, resulting in high frictional resistance and laborious operation when it is removed for maintenance, and the internal filter structure is simple and prone to clogging.

[0007] To achieve the above objectives, this utility model provides a sunken green belt drainage device for municipal roads, including a box and a filter assembly;

[0008] The filter assembly is detachably housed in the inner cavity of the housing. The filter assembly includes a filter cartridge, a rolling assembly fixedly connected to the outer wall of the filter cartridge, a limiting strip fixedly connected to the inner wall of the filter cartridge, a filter plate overlapping the limiting strip, and a filter screen.

[0009] The purpose of the rolling component is to replace the traditional sliding contact with rolling, so that the vertical movement of the filter component in the inner cavity of the box is smoother, thereby achieving the effect of saving effort and convenience when taking out or putting in the filter component.

[0010] The filter screen is fixedly connected to the inner wall of the filter cartridge and located below the filter plate. The filter plate and the filter screen are arranged in an upper and lower layer to form a layered filtration structure from top to bottom, which can purify the incoming rainwater step by step from coarse to fine, effectively delaying the clogging of the filter media and improving filtration efficiency and maintenance cycle.

[0011] Preferably, the rolling assembly includes a fixed plate, a rotating shaft, and a roller. The fixed plate is fixedly connected to the outer wall of the filter cartridge, and both ends of the rotating shaft are fixedly connected to the fixed plate. The roller is rotatably sleeved on the rotating shaft, and the outer peripheral wall of the roller rolls against the inner wall of the housing.

[0012] Preferably, a second handle is fixedly connected to the inner wall of the filter cartridge to facilitate the user to grip and apply force to lift or place the filter assembly from the housing.

[0013] Preferably, the sunken green belt drainage device for municipal roads further includes a cover plate, which covers the top opening of the box to protect the inside of the device and prevent large debris from entering directly.

[0014] Preferably, a positioning pin is fixedly connected to the top of the box along the edge of its opening, and a positioning hole is provided on the cover plate to cooperate with the positioning pin. Through the insertion and cooperation of the positioning pin and the positioning hole, the cover plate is quickly and accurately positioned and its displacement is prevented.

[0015] Preferably, a first handle is fixedly connected to the top surface of the cover plate for easy opening or closing of the cover plate, and a water inlet hole is also provided on the cover plate, with a filter cover installed at the water inlet hole for preliminary interception of debris at the front end of the rainwater entering the device.

[0016] Preferably, a drain pipe is connected to the lower side wall of the box to guide the filtered and purified rainwater to a subsequent collection system or municipal pipe network.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by fixing a rolling component to the outer wall of the filter cartridge, the problem of difficulty and inconvenience caused by high friction during the installation or removal of existing filter devices is solved, thereby making the installation and removal of the filter component easier and more convenient, and improving the practicality of the device.

[0019] 2. This utility model solves the problems of poor filtration effect and easy clogging of the existing single filtration structure by setting a limiting strip on the inner wall of the filter cartridge and overlapping the filter plate on the limiting strip, and setting a filter screen below the filter plate. It achieves secondary stratified filtration of rainwater, effectively improves the filtration effect and extends the overall service life.

[0020] 3. This utility model solves the problem of difficult cleaning after the accumulation of garbage inside the filter device by fixing a second handle to the inner wall of the filter cartridge and detachably housing the filter component in the box. It makes it convenient for users to remove the filter component completely from the box for centralized cleaning, thus improving the ease of device maintenance. Attached Figure Description

[0021] Figure 1 This is a perspective view of a sunken green belt drainage device for municipal roads proposed in this utility model.

[0022] Figure 2 This utility model provides an installation diagram of the cover plate for a sunken green belt drainage device for municipal roads.

[0023] Figure 3 This is a schematic diagram of the internal structure of a sunken green belt drainage device for municipal roads proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the filter component of a sunken green belt drainage device for municipal roads proposed in this utility model.

[0025] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Box body; 2. Cover plate; 3. Positioning pin; 4. Filter cover; 5. First handle; 6. Positioning hole; 7. Filter assembly; 701. Filter cartridge; 702. Second handle; 703. Filter plate; 704. Filter screen; 705. Limiting strip; 8. Rolling assembly; 801. Fixing plate; 802. Rotating shaft; 803. Roller; 9. Drain pipe. Detailed Implementation

[0028] 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.

[0029] Reference Figures 1-5 This utility model provides a sunken green belt drainage device for municipal roads. The device aims to solve the problem that the filter components in the existing sunken green belt drainage devices for municipal roads become heavy due to the accumulation of debris and rainwater, resulting in high friction and laborious and inconvenient operation during the removal and installation process.

[0030] Specifically, it includes a box 1 made of high-strength engineering plastics, precast concrete or corrosion-resistant metal materials, and a filter assembly 7 detachably housed in the inner cavity of the box 1. The box 1 serves as the supporting foundation and rainwater collection cavity of the entire device. Its structure is robust and suitable for underground installation. The filter assembly 7 is used to perform multi-stage filtration and purification of rainwater entering the box 1.

[0031] A rolling component 8 is fixedly connected to the outer wall of the filter assembly 7, and a fine filter structure is provided inside the filter assembly 7.

[0032] The externally mounted rolling components 8 of the filter assembly 7 can, in specific implementations, be symmetrically arranged in two or more sets on opposite sides of the cylindrical outer wall of the filter assembly 7 to provide stable and balanced support. Each set of rolling components 8 includes a fixed plate 801, a rotating shaft 802, and rollers 803. The fixed plate 801 can be made of metal or rigid plastic and is firmly fixed to the outer wall of the core component filter cylinder 701 of the filter assembly 7 by welding or multiple bolts. The rotating shaft 802 is usually made of metal and its two ends are fixedly connected, for example, by snap-fit ​​or welding, between the fixed plates 801. The roller 803 is preferably made of wear-resistant nylon or hard rubber material. It is rotatably mounted on the rotating shaft 802 through an internally integrated bearing. In the assembled state, the outer peripheral wall of the roller 803 can roll tightly against the smooth inner wall of the housing 1. Through this rolling engagement, when the filter assembly 7 needs to be removed from the housing 1 for cleaning or return, the lifting or pressing force applied by the person can convert the original sliding friction with huge resistance into rolling friction, thereby greatly reducing the operating force. This allows the filter assembly 7, which has become extremely heavy due to absorbing water and silt, to be moved vertically easily and conveniently.

[0033] The filter assembly 7 mainly consists of a cylindrical or square-shaped filter cylinder 701. A limiting strip 705 is integrally formed or welded to the inner wall of the filter cylinder 701 along its circumference. This limiting strip 705 provides a horizontal and stable support platform for the subsequently installed filter plate 703. The filter plate 703 is a grid plate with a large pore size. As an independent component, it can be directly overlapped and placed on the limiting strip 705 for preliminary filtration of rainwater, effectively intercepting larger impurities such as branches and stones. Below the plate 703, the filter assembly 7 also includes a filter screen 704. The mesh size of the filter screen 704 is much smaller than that of the filter plate 703. It is fixedly connected to the inner wall of the filter cartridge 701 and located below the filter plate 703. It is used to perform secondary fine filtration on the rainwater after it has been filtered by the filter plate 703, intercepting finer sand particles, suspended solids, etc., and realizing step-by-step purification from coarse to fine. This not only improves the filtration efficiency, but also effectively prevents the bottom fine filter screen 704 from being quickly blocked by large debris, thereby extending the overall maintenance cycle.

[0034] To facilitate the user in removing the filter assembly 7 from the housing 1, a second handle 702 is fixedly connected to the inner wall of the filter cartridge 701. The second handle 702 can be a strip-shaped gripping rod that spans the opening of the filter cartridge 701, or a ring-shaped handle fixed to one side of the inner wall. It is made of sturdy material and has a reliable connection. The user can directly grasp the second handle 702 and apply upward force. With the help of the effort-saving function of the rolling component 8, the entire filter assembly 7 can be easily lifted vertically and moved out of the housing 1 for garbage disposal and cleaning maintenance.

[0035] In order to cover and protect the entire device and achieve preliminary filtration of rainwater, a cover plate 2 is also included. The cover plate 2 is detachably installed on the top opening of the box 1. The material of the cover plate 2 can be the same as that of the box 1 and has sufficient load-bearing capacity. Its setting can effectively prevent pedestrians or vehicles from accidentally entering and prevent large debris such as fallen leaves and stones from falling directly into the box 1, playing a dual role of safety protection and preliminary cleaning.

[0036] At least two diagonally distributed positioning pins 3 are fixedly connected to the top of the box 1 along the edge of its opening. Correspondingly, the cover plate 2 is provided with positioning holes 6 that match the position and size of the positioning pins 3. When installing the cover plate 2, simply align the positioning holes 6 with the positioning pins 3 and put it down to achieve precise positioning of the cover plate 2 on the top of the box 1, preventing the cover plate 2 from sliding or deviating due to external force or vibration, thus ensuring the stability of the installation and long-term sealing.

[0037] A first handle 5 is fixedly connected to the center or one side of the top surface of the cover plate 2. Users can easily lift or close the cover plate 2 by grasping the first handle 5. In addition, the cover plate 2 is provided with multiple water inlet holes for guiding rainwater inflow. A filter cover 4 is integrally installed above all the water inlet holes. The filter cover 4 has a dense grid or lattice structure, which can intercept large floating objects such as leaves, cigarette butts, and plastic bags at the very front of the rainwater inflow device, forming the first filtration barrier of the device and reducing the workload of the internal filter components 7.

[0038] The lower side wall of the box 1 is also reserved with a standard interface for connecting the external drain pipe 9. The clean rainwater purified by the filter component 7 is collected at the bottom of the box 1. When the water level reaches the height of the drain pipe 9, it will be automatically discharged through the drain pipe 9 for subsequent rainwater resource collection, landscape water body replenishment, greening irrigation or direct discharge into the municipal rainwater pipe network.

[0039] Working principle: When in use, the device is buried in the sunken green belt, with the top of the box 1 exposed. The filter assembly 7 is placed inside the box 1 with the help of the rolling assembly 8 fixed to the outer wall of the filter assembly 7. Then, the positioning hole 6 on the cover plate 2 is aligned with the positioning nail 3 fixed to the top of the box 1 by the first handle 5 fixed to the cover plate 2. The box 1 is then lowered, and the cover plate 2 is placed stably on the top of the box 1. When the rainfall is heavy, the excess rainwater will first pass through the filter cover 4, thus blocking larger debris. The rainwater that has been initially filtered will fall into the filter assembly 7 and then be discharged through the outer wall of the box 1.

[0040] The filter assembly 7 is used to filter debris from rainwater. The rainwater, after initial filtration, falls into the housing 1 and is further filtered by the filter plate 703 placed on the limit bar 705 to block the debris. The filtered rainwater then passes through the filter screen 704 and is finally discharged through the drain pipe 9. When the drainage effect of the device deteriorates, the filter cylinder 701 can be pulled out of the housing 1 by the second handle 702 fixed to the inner wall of the filter cylinder 701, so as to clean the debris accumulated in the filter cylinder 701.

[0041] The rolling assembly 8 is used to assist the filter assembly 7 in being placed into or removed from the housing 1. The roller 803 rotates between the fixed plates 801 via the rotating shafts 802 fixed at both ends. At the same time, the fixed plates 801 are fixed to the outer wall of the filter cartridge 701, and the outer wall of the roller 803 is attached to the inside of the housing 1, making it easier and more convenient to install and remove the filter assembly 7.

Claims

1. A sunken green belt drainage device for municipal roads, comprising: Box (1); A filter assembly (7) comprising a filter cartridge (701) which is detachably housed within the cavity of the housing (1); The filter assembly (7) is characterized in that it further includes a rolling assembly (8) fixedly connected to the outer wall of the filter cartridge (701); A limiting strip (705) is fixedly connected to the inner wall of the filter cartridge (701); the filter assembly (7) also includes a filter plate (703), which overlaps the limiting strip (705); The filter assembly (7) further includes a filter screen (704), which is fixedly connected to the inner wall of the filter cartridge (701) and located below the filter plate (703).

2. The sunken green belt drainage device for municipal roads according to claim 1, characterized in that, The rolling assembly (8) includes a fixed plate (801) and a rotating shaft (802). The fixed plate (801) is fixedly connected to the outer wall of the filter cartridge (701), and both ends of the rotating shaft (802) are fixedly connected to the fixed plate (801).

3. A sunken green belt drainage device for municipal roads according to claim 2, characterized in that, The rolling assembly (8) further includes a roller (803), which is rotatably mounted on the rotating shaft (802), and the outer peripheral wall of the roller (803) rolls against the inner wall of the housing (1).

4. A sunken green belt drainage device for municipal roads according to claim 1, characterized in that, A second handle (702) is also fixedly connected to the inner wall of the filter cartridge (701).

5. A sunken green belt drainage device for municipal roads according to claim 1, characterized in that, It also includes a cover plate (2) which covers the top opening of the housing (1).

6. A sunken green belt drainage device for municipal roads according to claim 5, characterized in that, The top of the box (1) is fixedly connected with a positioning pin (3) along the edge of its opening; the cover plate (2) is provided with a positioning hole (6) that cooperates with the positioning pin (3).

7. A sunken green belt drainage device for municipal roads according to claim 5, characterized in that, The top surface of the cover plate (2) is fixedly connected to a first handle (5); the cover plate (2) is also provided with a water inlet hole, and a water filter cover (4) is installed at the water inlet hole.

8. A sunken green belt drainage device for municipal roads according to claim 1, characterized in that, A drain pipe (9) is connected to the lower side wall of the box (1).

Images