A new municipal road drainage structure

Abstract

A new municipal road drainage structure, including well seat, the bottom of well seat is communicated with drainage pipeline, the top of well seat is embeddedly connected with grid plate, the inside of well seat is provided with filter assembly one, the top of drainage pipeline inner wall is detachably installed with movable plate, movable plate is circumferentially arrayed with multiple drainage holes, sealing assembly is arranged between movable plate and drainage pipeline inner wall, movable plate below drainage pipeline inner wall is detachably installed with movable frame, movable frame and movable plate are provided with same number of float ball as drainage hole, float ball limiting assembly is arranged between movable frame and movable plate outside each drainage hole, filter assembly two is arranged on drainage pipeline inner wall below movable frame, the utility model discloses through multilayer filtration and prevent backflow design, improve drainage stability, optimize component dismounting structure simultaneously, convenient maintenance, be applicable to municipal road drainage scene.

Description

Technical Field

[0001] This utility model relates to the field of municipal road drainage technology, and in particular to a novel municipal road drainage structure. Background Technology

[0002] Municipal drainage systems are the core of urban infrastructure. They can promptly drain rainwater and sewage, prevent road flooding, and protect road structures. They are of great significance for ensuring traffic safety and preventing urban flooding.

[0003] In the prior art, Chinese utility model patent application number CN202020953409.6 discloses a municipal road drainage structure, which uses a float to drive a trapezoidal blocking block to cooperate with a trapezoidal drainage hole to prevent backflow. However, this structure is inconvenient to disassemble and maintain. In long-term use, the float and trapezoidal blocking block are prone to wear and dirt accumulation, which is difficult to clean and replace in time, resulting in poor sealing and failure to prevent backflow.

[0004] In summary, we propose a novel municipal road drainage structure to address the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a new type of municipal road drainage structure. By using this structure, the problem of unreliable backflow prevention and sealing caused by inconvenient maintenance in the above-mentioned background technology is solved.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a novel municipal road drainage structure, including a manhole base, a drainage pipe connected to the bottom of the manhole base, a grating plate fitted to the top of the manhole base, a filter assembly I disposed inside the manhole base, a movable plate detachably installed on the top of the inner wall of the drainage pipe, a plurality of drainage holes arranged in a circumferential array on the movable plate, a sealing assembly disposed between the movable plate and the inner wall of the drainage pipe, a movable frame detachably installed on the inner wall of the drainage pipe below the movable plate, floats of the same number as the drainage holes disposed between the movable frame and the movable plate, the diameter of the floats being larger than the diameter of the drainage holes, a float limiting assembly disposed on the outside of each drainage hole between the movable frame and the movable plate, and a filter assembly II disposed on the inner wall of the drainage pipe below the movable frame.

[0007] Preferably, the filter assembly includes a slot formed on the inner wall of the well base, and a filter tray is fitted into the slot. Two symmetrical handles are hinged to the two inner side walls of the filter tray.

[0008] Preferably, the top of the inner wall of the drainage pipe is provided with a plurality of positioning grooves, and a positioning block is fitted into the inner wall of each positioning groove. The plurality of positioning blocks are fixedly connected to the side wall of the movable plate, and a hook is fixedly connected to the center of the top of the movable plate.

[0009] Preferably, the sealing assembly includes an annular sealing platform, which is fixedly connected to the inner wall of the drain pipe. The bottom of the movable plate is fixedly connected to a support ring on the outside of a plurality of drain holes. A sealing ring is installed on the outer surface of the mounting ring. The outer surface of the sealing ring is tapered and contacts the sealing platform.

[0010] Preferably, a support ring is fixedly connected to the inner wall of the drainage pipe below the sealing platform. The inner diameter of the support ring is smaller than the inner diameter of the sealing platform. Multiple positioning grooves are provided on the top of the support ring. A positioning block is fitted into the inner wall of each positioning groove. Multiple positioning blocks are fixedly connected to the side wall of the movable frame. A hook is fixedly connected to the center of the top of the movable frame.

[0011] Preferably, the float limiting assembly includes a limiting cover, which is fixedly connected to the bottom of the movable plate and the outside of the drain hole. The limiting cover has a conical structure. A cage frame is fixedly connected to the top of the movable frame. The float is fitted with the cage frame with a gap. An outwardly expanding guide port is provided at the top of the cage frame. The guide port is located in the internal space of the limiting cover. A second sealing ring with a conical structure is installed inside the limiting cover above the guide port.

[0012] Preferably, the second filter assembly includes an annular support platform, which is fixedly connected to the inner wall of the drain pipe below the support ring. The inner diameter of the support platform is smaller than the inner diameter of the support ring. The top of the support platform abuts against the second filter tray. A hook three is fixedly connected to the center of the top of the second filter tray. A limit ring is fixedly connected to the top of the support platform on the outside of the second filter tray.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Easier maintenance: By optimizing the detachable design and independent assembly structure of each core component, convenient maintenance is achieved. The filter tray is fitted with a slot, and the movable plate and movable frame are fitted with a positioning block and positioning groove. Each component is equipped with a hook or handle, which can be quickly disassembled to clean or replace the float, sealing ring and filter tray, avoiding the problem of poor sealing caused by dirt accumulation and wear.

[0014] More stable float operation: The float operates stably and effectively prevents backflow through dual protection and a precise limiting structure. On the one hand, the second filter component intercepts debris such as plastic bags in the sewer and prevents them from getting tangled in the float limiting component. On the other hand, the cage frame's outward-expanding guide port guides the float to move precisely, and a small amount of leakage can be temporarily stored through the internal space of the well base, which not only avoids the float getting stuck but also ensures the reliability of backflow prevention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the positional relationship between the well base and the filter tray in this utility model; Figure 3 This is a schematic diagram showing the positional relationship between the movable plate and the limiting cover in this utility model; Figure 4 This is a schematic diagram showing the positional relationship between the movable plate and the movable frame in this utility model; Figure 5 This is a schematic diagram showing the positional relationship between the limiting cover and the sealing ring in this utility model; Figure 6 This is a schematic diagram showing the positional relationship between the drainage pipe and the filter tray in this utility model.

[0016] In the diagram: 1. Well base; 2. Drainage pipe; 3. Grating plate; 4. Filter assembly one; 41. Slot; 42. Filter tray one; 43. Handle; 5. Movable plate; 6. Sealing assembly; 61. Sealing platform; 62. Mounting ring; 63. Sealing ring one; 7. Float ball limiting assembly; 71. Limiting cover; 72. Cage frame; 73. Sealing ring two; 8. Movable frame; 9. Filter assembly two; 91. Support platform; 92. Filter tray two; 93. Limiting ring; 10. Drainage hole; 11. Float ball; 12. Positioning groove one; 13. Support ring; 14. Positioning groove two. Detailed Implementation

[0017] 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.

[0018] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0019] like Figures 1-6As shown, a novel municipal road drainage structure includes a manhole base 1, with a drainage pipe 2 connected to the bottom of the manhole base 1, which in turn connects to an underground sewer. A grating plate 3 is fitted and connected to the top of the manhole base 1. The grating plate 3 can pre-intercept larger debris such as branches and stones in rainwater or sewage, preventing large particles from entering subsequent structures and causing blockages. A filter assembly 4 is installed inside the manhole base 1 for secondary filtration of the water. A movable plate 5 is detachably installed on the top of the inner wall of the drainage pipe 2. Multiple drainage holes 10 are distributed in a circular array on the movable plate 5. A sealing assembly 6 is provided between the movable plate 5 and the inner wall of the drainage pipe 2. The sealing assembly 6 between the movable plate 5 and the inner wall of the drainage pipe 2 can... To prevent water leakage from the gap between the movable plate 5 and the drainage pipe 2, a movable frame 8 is detachably installed on the inner wall of the drainage pipe 2 below the movable plate 5. A number of floats 11, the same as the number of drainage holes 10, are installed between the movable frame 8 and the movable plate 5. The diameter of the floats 11 is larger than the diameter of the drainage holes 10. The floats 11 are preferably made of polypropylene and contain counterweight sand. A float limiting component 7 is installed on the outside of each drainage hole 10 between the movable frame 8 and the movable plate 5. The float limiting component 7 ensures that the floats 11 move within a certain range, achieving precise backflow prevention. A filter component 9 is installed on the inner wall of the drainage pipe 2 below the movable frame 8 to intercept debris from the sewer and ensure the normal operation of the floats.

[0020] Furthermore, the filter assembly 4 includes a slot 41, which is formed on the inner wall of the well base. A filter tray 42 is fitted into the slot 41 to perform secondary filtration on the water after the initial filtration by the grid plate 3, intercepting medium-sized impurities such as silt and debris. Two symmetrical handles 43 are hinged to the two inner side walls of the filter tray 42. When it is necessary to clean or replace the filter tray 42, it can be easily removed from the well base through the handles 43, improving the convenience of maintenance.

[0021] Furthermore, multiple positioning grooves 12 are provided on the top of the inner wall of the drainage pipe 2, and inclined grooves are provided on the top of the two side walls of the positioning grooves 12. A positioning block is fitted into the inner wall of each positioning groove 12. Multiple positioning blocks are fixedly connected to the side wall of the movable plate 5. The multiple positioning blocks and positioning grooves 12 prevent the movable plate 5 from shifting during drainage. A hook is fixedly connected to the center of the top of the movable plate 5. When it is necessary to disassemble the movable plate 5 for maintenance or replace the sealing component 6, the movable plate 5 can be removed from the drainage pipe 2 through the hook.

[0022] Furthermore, the sealing assembly 6 includes an annular sealing platform 61, which is fixedly connected to the inner wall of the drain pipe 2. The bottom of the movable plate 5 is fixedly connected to the outer side of multiple drain holes 10 with an installation ring 62. A sealing ring 63 is installed on the outer surface of the installation ring 62. The material of the sealing ring 63 is preferably EPDM rubber. The outer surface of the sealing ring 63 has a conical structure. The outer surface of the sealing ring 63 is in contact with the sealing platform 61. When the movable plate 5 is installed in place, under the weight of the movable plate 5 itself, the conical outer surface of the sealing ring 63 is in close contact with the sealing platform 61. The conical structure can increase the contact sealing area between the two, effectively preventing water from leaking from the gap between the movable plate 5 and the inner wall of the drain pipe 2, and improving the sealing reliability.

[0023] Furthermore, a support ring 13 is fixedly connected to the inner wall of the drainage pipe 2 below the sealing platform 61. The inner diameter of the support ring 13 is smaller than the inner diameter of the sealing platform 61. Multiple positioning grooves 14 are provided on the top of the support ring 13. Inclined grooves are provided on the top of the two side walls of the positioning grooves 14. A positioning block 2 is fitted into the inner wall of each positioning groove 14. Multiple positioning blocks 2 are fixedly connected to the side wall of the movable frame 8. A hook 2 is fixedly connected to the center of the top of the movable frame 8.

[0024] Furthermore, the float limiting assembly 7 includes a limiting cover 71, which is fixedly connected to the bottom of the movable plate 5 and the outside of the drain hole 10. The limiting cover 71 has a conical structure and can limit the float 11 from the outside to ensure that the float 11 always corresponds to the drain hole 10. The top of the movable frame 8 is fixedly connected to a cage frame 72, and the float 11 is fitted with the cage frame 72. The cage frame 72 can limit the lateral movement range of the float 11 and prevent the float 11 from deviating. The top of the cage frame 72 is provided with an outwardly expanding guide port, which is located in the internal space of the limiting cover 71 to ensure that the float 11 always stays within the limiting structure during the lifting and lowering process. Inside the limiting cover 71, above the guide port, is a sealing ring 73 with a conical structure. The material of the sealing ring 73 is preferably EPDM rubber. When backflow occurs, the float 11 can fit tightly with the sealing ring 73 to seal and block the drain hole 10, thereby improving the backflow prevention effect.

[0025] Furthermore, the filter assembly 2 9 includes an annular support platform 91, which is fixedly connected to the inner wall of the drain pipe 2 below the support ring 13. The inner diameter of the support platform 91 is smaller than the inner diameter of the support ring 13. The top of the support platform 91 abuts against the filter tray 2 92, which can intercept plastic bags and other debris in the sewer water, preventing debris from entering the float limiting assembly 7 area and entangled in the float 11, thus ensuring the normal movement of the float 11. A hook 3 is fixedly connected to the center of the top of the filter tray 2 92, which facilitates the removal of the filter tray 2 92 for cleaning or replacement. A limiting ring 93 is fixedly connected to the top of the support platform 91 on the outside of the filter tray 2 92, which can circumferentially limit the filter tray 2 92 and prevent the filter tray 2 92 from shifting under the impact of water.

[0026] Working principle: In daily drainage scenarios, rainwater or sewage first enters the well body through the grating plate 3 on the top of the well base 1. The grating plate 3 first intercepts larger debris in the water to prevent it from entering the subsequent structure and causing blockage. Then, the water flows into the filter tray 42 inside the well base 1 for secondary filtration of medium-sized impurities. The filtered water then enters the drainage pipe 2 below. The water entering the drainage pipe 2 first flows to the movable plate 5 and then seeps downward through the drainage holes 10 in the circular array on the movable plate 5. Finally, the water passes through the filter tray 92 and is discharged into the underground sewer along the drainage pipe 2.

[0027] When backflow occurs at the connection point between drainage pipe 2 and underground sewer, the conical sealing ring 63 on the outer side of the mounting ring 62 at the bottom of the movable plate 5 is in close contact with the sealing platform 61 to form a sealing structure. The backflowing water pushes the float 11 upward until the float 11 is tightly fitted with the conical sealing ring 73 inside the limiting cover 71, which can greatly block the backflow path. Even if a small amount of water seeps upward through the gap of the sealing ring 73, the well base 1 has sufficient space to temporarily store the small amount of seepage water, preventing water from overflowing onto the road surface.

[0028] When a large amount of water overflows from the grating plate 3, the internal structure of this drainage system needs to be maintained. During the maintenance process, the movable plate 5, movable frame 8, and filter tray 2 92 can be disassembled by hook 1, hook 2, and hook 3 respectively. The filter tray 1 42 can be removed by the handle 43 of the filter tray 1 42, making it easy to clean and replace each component.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 novel municipal road drainage structure, comprising a manhole base (1), wherein a drainage pipe (2) is connected to the bottom of the manhole base (1), and a grating plate (3) is fitted and connected to the top of the manhole base (1), characterized in that: The well base (1) is equipped with a filter assembly (4) inside. A movable plate (5) is detachably installed on the top of the inner wall of the drainage pipe (2). Multiple drainage holes (10) are arranged in a circular array on the movable plate (5). A sealing assembly (6) is provided between the movable plate (5) and the inner wall of the drainage pipe (2). A movable frame (8) is detachably installed on the inner wall of the drainage pipe (2) below the movable plate (5). A float ball (11) with the same number as the drainage holes (10) is provided between the movable frame (8) and the movable plate (5). The diameter of the float ball (11) is larger than the diameter of the drainage hole (10). A float ball limiting assembly (7) is provided on the outside of each drainage hole (10) between the movable frame (8) and the movable plate (5). A filter assembly (9) is provided on the inner wall of the drainage pipe (2) below the movable frame (8).

2. The novel municipal road drainage structure according to claim 1, characterized in that: The filter assembly (4) includes a slot (41) which is opened on the inner wall of the well seat. A filter tray (42) is fitted into the slot (41). Two symmetrical handles (43) are hinged to the two inner side walls of the filter tray (42).

3. The novel municipal road drainage structure according to claim 1, characterized in that: The top of the inner wall of the drainage pipe (2) is provided with multiple positioning grooves (12), and a positioning block is fitted into the inner wall of each positioning groove (12). Multiple positioning blocks are fixedly connected to the side wall of the movable plate (5), and a hook is fixedly connected to the center of the top of the movable plate (5).

4. A novel municipal road drainage structure according to claim 3, characterized in that: The sealing assembly (6) includes an annular sealing platform (61), which is fixedly connected to the inner wall of the drain pipe (2). The bottom of the movable plate (5) is fixedly connected to an installation ring (62) on the outside of a plurality of drain holes (10). A sealing ring (63) is installed on the outer surface of the installation ring (62). The outer surface of the sealing ring (63) has a conical structure and the outer surface of the sealing ring (63) is in contact with the sealing platform (61).

5. A novel municipal road drainage structure according to claim 4, characterized in that: The inner wall of the drainage pipe (2) is fixedly connected to a support ring (13) below the sealing platform (61). The inner diameter of the support ring (13) is smaller than the inner diameter of the sealing platform (61). The top of the support ring (13) is provided with multiple positioning grooves (14). The inner wall of each positioning groove (14) is fitted with a positioning block (2). Multiple positioning blocks (2) are fixedly connected to the side wall of the movable frame (8). A hook (2) is fixedly connected to the center of the top of the movable frame (8).

6. A novel municipal road drainage structure according to claim 5, characterized in that: The float limiting assembly (7) includes a limiting cover (71), which is fixedly connected to the bottom of the movable plate (5) and the outside of the drain hole (10). The limiting cover (71) has a conical structure. The top of the movable frame (8) is fixedly connected to a cage frame (72). The float (11) is fitted with a gap inside the cage frame (72). The top of the cage frame (72) is provided with an outwardly expanding guide port. The guide port is located in the internal space of the limiting cover (71). The inside of the limiting cover (71) is equipped with a sealing ring (73) with a conical structure above the guide port.

7. A novel municipal road drainage structure according to claim 5, characterized in that: The filter assembly 2 (9) includes an annular support platform (91), which is fixedly connected to the inner wall of the drain pipe (2) below the support ring (13). The inner diameter of the support platform (91) is smaller than the inner diameter of the support ring (13). The top of the support platform (91) abuts against the filter tray 2 (92). A hook 3 is fixedly connected to the center of the top of the filter tray 2 (92). A limit ring (93) is fixedly connected to the top of the support platform (91) on the outside of the filter tray 2 (92).

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