A road rainwater well cover convenient to clean
By introducing a detachable, tilting flow-diverting interception basket and a concealed handle structure into the road storm drain cover, the problem of scattered accumulation of debris in existing manhole covers is solved, enabling the targeted concentration and rapid cleaning of debris, ensuring unobstructed drainage channels, and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU BOCHAO IND
- Filing Date
- 2025-08-05
- Publication Date
- 2026-08-04
AI Technical Summary
Existing road storm drain covers trap debris in a scattered and accumulating state inside the device, lacking a directional gathering guide structure. This results in a messy distribution of debris that easily sticks to the interception components. Cleaning requires manual cleaning of the corners and edges one by one, which is cumbersome and time-consuming. In the long run, this may lead to local blockage of the device and affect the normal functioning of drainage.
A road storm drain cover designed for easy cleaning is used, featuring a rectangular support base and a detachable inclined guide basket. The inclined guide surface directs debris to a low-level slag collection area. Combined with a hidden handle and an axial push-pull limit rod structure, the module can be quickly separated and debris can be centrally discharged, avoiding overall disassembly and deep pipe operations.
It enables targeted collection and rapid cleaning of debris, ensures continuous unobstructed drainage channels, simplifies the cleaning process, avoids manual contact with dirty areas, and improves operational convenience and safety.
Smart Images

Figure CN224591558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of drainage system supporting equipment, and in particular to a road rainwater well cover that is easy to clean. Background Technology
[0002] Roadside storm drain covers are a key component of urban drainage systems, widely distributed in various areas such as urban roads, sidewalks, and squares. They are mainly used to cover drainage well openings, ensuring the safety of pedestrians and vehicles while also collecting and guiding rainwater discharge. They are typically designed with drainage channels or perforated structures, allowing rainwater to smoothly infiltrate into the drainage pipes below and then flow into the overall urban drainage network. To address the possibility of fallen leaves, small debris, etc., carried by rainwater runoff, some applications will install corresponding interception structures along the drainage path to reduce debris entering the subsequent pipe system and ensure the stable operation of the drainage process. They are important municipal facilities for maintaining the normal urban water cycle and ensuring smooth drainage during the flood season.
[0003] Existing road storm drain covers trap debris in a scattered, accumulating state inside the device, lacking a directional guiding structure. This results in a chaotic distribution of debris that easily adheres to the trapping components. Cleaning requires manual cleaning of every corner and edge, making complete removal difficult in one go. Most devices use fixed connections or complex disassembly methods to the trapping components, requiring tools for complete disassembly, and sometimes even necessitating the complete removal and tilting of the components from the drain opening. This process is cumbersome and time-consuming, and in the long run, delayed cleaning can lead to partial blockages, affecting the normal drainage function. Therefore, we propose a road storm drain cover that is easy to clean to solve the aforementioned problems. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] Therefore, the purpose of this utility model is to provide a road storm drain cover that is easy to clean. It can solve the problem that the debris intercepted by existing road storm drain covers is mostly scattered and piled up inside the device, lacking a directional gathering guiding structure. This results in the debris being distributed in a messy manner and easily sticking to the interception components. During cleaning, it is necessary to manually clean the corners one by one, which is difficult to completely remove at one time. Most devices use fixed connections or complex disassembly and assembly methods to connect the interception components to the main structure. During cleaning, it is necessary to use tools to complete the overall disassembly, and sometimes it is necessary to completely remove the components from the well opening and then turn them over and dump them. The operation process is cumbersome and time-consuming. In the long run, it may also lead to local blockage of the device due to untimely cleaning, which will affect the normal functioning of drainage.
[0006] To solve the above-mentioned technical problems, this utility model provides a road storm drain cover that is easy to clean, and adopts the following technical solution: it includes a rectangular support base, on which a storm drain grate is axially fitted. The surface of the storm drain grate is provided with several linear drainage grooves. Directly below the storm drain grate, an inclined flow guide and interception basket is detachably installed through the limiting structure of the rectangular support base. The inclined flow guide and interception basket is a cuboid cavity structure, and its interior is provided with an inclined flow guide surface along the diagonal direction, so that the bottom end of the inclined flow guide surface forms a low-level slag collection area and the top end forms a high-level flow passage area.
[0007] Optionally, the inclined flow guide interception basket has a narrowed receiving groove that matches its top contour directly above it. An axially hidden handle is fitted into the receiving groove. Normally, the axially hidden handle is completely embedded in the receiving groove. When in use, force is applied to one end of the hidden handle to generate an axial lifting force with the top central axis as the force fulcrum. The inclined flow guide interception basket consists of an upper positioning and installation module and a lower slag collection and unloading module.
[0008] Optionally, the lower slag collection and unloading module is located in the lower left area of the inclined guide interception basket, with the low-level slag collection area directly above it. The top of the lower slag collection and unloading module is adapted to be installed on the left side of the upper positioning and installation module through an axial movable connection structure. The upper positioning and installation module and the lower slag collection and unloading module are fully adapted and fitted together in the working state. Both the lower slag collection and unloading module and the upper positioning and installation module are provided with small strip-shaped water passage holes. The width of the small strip-shaped water passage hole is half the width of the linear drainage groove on the rainwater grate.
[0009] Optionally, an axial connection hole is provided at the axial connection between the upper positioning and mounting module and the lower slag collection and unloading module. A square limiting hole is provided at the rear end of the axial connection hole. The diameter of the square limiting hole is smaller than the overall diameter of the axial connection hole. Two axial connection lugs are provided directly above the lower slag collection and unloading module.
[0010] Optionally, the axial connecting lugs are provided with a first through hole and a second through hole, and an axial push-pull limiting rod is axially connected between the axial connecting hole and the square limiting hole of the upper positioning and mounting module and the first through hole and the second through hole on the axial connecting lugs of the lower slag collection and unloading module.
[0011] Optionally, the axial push-pull limiting rod includes a square limiting segment, a first ear circumferential limiting segment, a second ear circumferential limiting segment, and a pull handle arranged sequentially. The square limiting segment and the square limiting hole are fitted together to achieve circumferential limiting. The diameter of the second ear circumferential limiting segment is adapted to the second through hole, and its tail forms an axial limiting with the second through hole. The outer diameter of the first ear circumferential limiting segment is larger than that of the square limiting segment.
[0012] Optionally, the outer diameter of the square limiting segment is larger than that of the second ear circumferential limiting segment, the first ear circumferential limiting segment is adapted to the first through hole, and the first ear circumferential limiting segment and the second ear circumferential limiting segment respectively correspond to the first through hole and the second through hole to form an axial limiting to limit the pull stroke of the axial push-pull limiting rod, and the pull handle is fastened to the head of the axial push-pull limiting rod.
[0013] Optionally, a limiting plane is provided directly below the pull handle, and two matching limiting planes are provided in front of the second ear. When the axially pushed and pulled limiting rod is in the insertion state, the two limiting planes are parallel and aligned and form a limiting position through the plane fitting. When the axially pushed and pulled limiting rod is pulled outward until the square limiting segment is disengaged from the square limiting hole, the first limiting plane and the second limiting plane are axially offset to release the limiting position, so that the axially pushed and pulled limiting rod can rotate around the axis.
[0014] Optionally, a lifting handle is axially connected to the bottom left corner of the lower slag collection and unloading module. The height of the lifting handle is two-thirds of the overall height of the lower slag collection and unloading module, and its width is the same as the width of the lower slag collection and unloading module. When the axially pushed and pulled limit rod is pulled outward to make the square limit section disengage from the square limit hole, the lower slag collection and unloading module will move slightly downward along the axis due to its own weight. At this time, by applying an upward axial pulling force through the lifting handle, the lower slag collection and unloading module can be rotated, so that the debris accumulated inside can be completely unloaded under the action of gravity.
[0015] In summary, this utility model has at least one of the following beneficial effects: 1. By setting a detachable inclined guide interception basket inside a rectangular bearing base, the inclined guide surfaces arranged along the diagonal inside the basket direct debris in the rainwater to the low-level slag collection area for concentrated accumulation. At the same time, the high-level flow area and the hollow structure of the basket body ensure that rainwater is discharged quickly. Combined with the linear drainage channel design of the rainwater grate, efficient solid-liquid separation and continuous unobstructed drainage channels are achieved. The interception basket adopts an axial movable connection structure between the upper positioning installation module and the lower slag collection and unloading module. Combined with the constricted hidden handle at the top, it is stably embedded in the base through the cooperation of the limiting rod and the limiting hole during operation. During cleaning, the lower module can be quickly separated by simply pulling the limiting rod and lifting the handle. There is no need for overall disassembly or deep pipe operation, thus achieving the purpose of directional collection and concentration of debris and convenient and labor-saving maintenance.
[0016] 2. By setting axial push-pull limiting rods and their matching square limiting sections and limiting planes at the connection between the upper and lower modules, the limiting rods are fitted with axial connecting holes and square limiting holes to achieve circumferential fixation and axial limiting of the modules, ensuring structural stability without rotation or displacement during operation. When unloading is required, pulling the limiting rods causes the square limiting sections to disengage from the limiting holes. At this time, the limiting planes are misaligned and released from constraint. The lower slag collection and unloading module moves slightly downward due to its own weight. By applying pulling force through the bottom axially connected lifting handle, the module can be rotated around the connection point, allowing internal debris to be completely unloaded along the inclined guide surface under the action of gravity, avoiding manual contact and residue problems. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the overall open state structure of this utility model;
[0020] Figure 3 This is a partial structural schematic diagram of the present invention;
[0021] Figure 4 This is a detailed enlarged schematic diagram of a part of the structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the inclined flow-guiding and interception basket of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Rectangular bearing base;
[0025] 2. Rainwater grate; 21. Linear drainage channel;
[0026] 3. Inclined flow guide and interception basket; 31. Inclined flow guide surface; 311. Low-level slag collection area; 312. High-level flow passage area; 32. Narrowed-mouth receiving tank; 33. Small strip-shaped water passage hole; 34. Upper positioning and installation module; 341. Axial connection hole; 342. Square limiting hole; 35. Lower slag collection and unloading module; 351. Axial connection lug; 3511. First through hole; 3512. Second through hole; 3513. Second limiting plane;
[0027] 4. Concealed handles;
[0028] 5. Axial push-pull limiting rod; 51. Square limiting section; 52. First ear circumferential limiting section; 53. Second ear circumferential limiting section; 54. Pull-out handle; 541. Limiting plane;
[0029] 6. Pull handle. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.
[0031] Example 1, refer to Figure 1-5 In this embodiment, to address the problem that existing road storm drain covers often trap debris in a scattered, accumulating state inside the device, lacking a directional guiding structure, resulting in a chaotic distribution of debris that easily adheres to the trapping components, requiring manual cleaning of corners and edges, making complete removal difficult in one go. Most devices use fixed connections or complex disassembly methods between the trapping components and the main structure, requiring tools for complete disassembly, and sometimes even necessitating the complete removal and tilting of the components from the well opening. This cumbersome and time-consuming process can lead to localized blockages in the device due to delayed cleaning, affecting its normal drainage function. Therefore, this utility model discloses a road storm drain cover that is easy to clean.
[0032] The system includes a rectangular support base 1, on which a rainwater grate 2 is axially fitted. The surface of the rainwater grate 2 has several linear drainage grooves 21. Directly below the rainwater grate 2, an inclined flow-guiding and intercepting basket 3 is detachably installed via a limiting structure of the rectangular support base 1. The inclined flow-guiding and intercepting basket 3 has a cuboid cavity structure, with inclined flow-guiding surfaces 31 arranged diagonally inside, forming a low-level slag collection area 311 at the bottom and a high-level slag collection area 311 at the top. The overflow zone 312 is formed by setting an inclined guide interception basket 3 inside the rectangular support base 1, and constructing an inclined guide surface 31 along the diagonal direction inside it. The bottom end of the inclined guide surface 31 forms a low-level slag collection zone 311 and the top end forms a high-level overflow zone 312. This can guide the debris carried by the rainwater to the low-level slag collection zone 311 for concentrated accumulation along the inclined guide surface 31. At the same time, the rainwater is quickly discharged through the high-level overflow zone 312 and the hollow structure of the basket, realizing the efficient separation of debris and rainwater.
[0033] The inclined flow guide interception basket 3 has a constricted receiving groove 32 that matches its top contour on its top. An axially concealed handle 4 is fitted into the receiving groove. Under normal conditions, the axially concealed handle 4 is completely embedded in the receiving groove. When in use, force is applied to one end of the concealed handle 4 to generate an axial lifting force with the top central axis as the force fulcrum. The inclined flow guide interception basket 3 is composed of an upper positioning and installation module 34 and a lower slag collection and unloading module 35. By opening a constricted receiving groove 32 that matches the top contour on the top of the inclined flow guide interception basket 3 and installing an axially concealed handle 4, the handle is completely hidden in the groove under normal conditions, avoiding any impact on the water flow path or the appearance of the equipment. When in use, force is applied to one end of the handle, and an axial lifting force is generated with the top central axis as the fulcrum, which can quickly lift the entire interception basket from the base, improving the convenience and safety of operation.
[0034] The lower slag collection and unloading module 35 is located in the lower left area of the inclined guide and interception basket 3, directly above which is the low-level slag collection area 311. The top of the lower slag collection and unloading module 35 is axially movable and fitted onto the left side of the upper positioning and installation module 34 via an axial movable connection structure. The upper positioning and installation module 34 and the lower slag collection and unloading module 35 are fully fitted and fitted together in the working state. Both the lower slag collection and unloading module 35 and the upper positioning and installation module 34 are provided with small strip-shaped water passage holes 33. The width of the water passage 33 is half the width of the linear drainage channel 21 on the rain grate 2. By setting an axially movable lower slag collection and unloading module 35 below the low slag collection area 311 of the inclined flow guide interception basket 3, and opening small strip-shaped water passages 33 with a width of half that of the drainage channel of the rain grate 2 in the upper and lower modules, it is possible to perform secondary screening of small debris during the rainwater discharge process. This allows rainwater to be continuously discharged through the water passage while intercepting larger debris in the low slag collection area 311 for centralized collection.
[0035] An axial connection hole 341 is provided at the axial connection point between the upper positioning and mounting module 34 and the lower slag collection and unloading module 35. A square limiting hole 342 is provided at the rear end of the axial connection hole 341. The diameter of the square limiting hole 342 is smaller than the overall diameter of the axial connection hole 341. Two axial connection lugs 351 are provided directly above the lower slag collection and unloading module 35. By setting axial connection holes 341 and square limiting holes 342 of different diameters at the axial connection point of the upper and lower modules, and by setting two axial connection lugs 351 above the lower slag collection and unloading module, precise positioning and stable connection between the modules can be achieved. The axial connection hole 341 provides a basic channel for installation. The smaller diameter square limiting hole 342 at the rear end cooperates with the corresponding shape of the limiting component to effectively prevent circumferential rotation of the module during use and ensure structural stability. The two axial connection lugs 351 further enhance the reliability of the connection and achieve axial fixation by cooperating with the hole positions.
[0036] A first through hole 3511 and a second through hole 3512 are respectively opened on the axial connecting lug 351. An axial push-pull limiting rod 5 is installed axially between the axial connecting hole 341 and the square limiting hole 342 of the upper positioning and mounting module 34 and the first through hole 3511 and the second through hole 3512 on the axial connecting lug 351 of the lower slag collection and unloading module 35. An axial push-pull limiting rod 5 is installed through the axial connecting hole 341 and the square limiting hole 342 of the upper positioning and mounting module 34 and the first through hole 351 of the axial connecting lug 351 of the lower slag collection and unloading module 35. 1. An axial push-pull limiting rod 5 is installed between the second through holes 3512. The structural design of the rod passing through each hole realizes the quick positioning and stable connection of the upper and lower modules. The cooperation between the square limiting hole 342 and the corresponding limiting section of the axial push-pull limiting rod 5 can effectively prevent the circumferential rotation of the module and ensure the structural stability in the working state. The axial push-pull operation mode allows the module to be fixed by the limiting rod when closed. When unloading, simply pull the limiting rod outward to release the lock, thus achieving the purpose of convenient installation, reliable connection and easy quick separation and unloading.
[0037] The axial push-pull limiting rod 5 includes a square limiting segment 51, a first ear circumferential limiting segment 52, a second ear circumferential limiting segment 53, and a pull handle 54 arranged sequentially. The square limiting segment 51 and the square limiting hole 342 are fitted together to achieve circumferential limiting. The diameter of the second ear circumferential limiting segment 53 is adapted to the second through hole 3512, and its tail forms an axial limiting with the second through hole 3512. The outer diameter of the first ear circumferential limiting segment 52 is larger than that of the square limiting segment 51. By sequentially arranging the square limiting segment 51, the first ear circumferential limiting segment 52, and the second ear circumferential limiting segment 53 on the axial push-pull limiting rod 5, a circumferential limiting handle 54 is achieved. The limiting section 53 and the pull handle 54 achieve circumferential fixation by adapting and fitting the square limiting section 51 and the square limiting hole 342 to prevent the upper and lower modules from rotating. The diameter adaptation of the second ear circumferential limiting section 53 and the second through hole 3512 and the tail limiting design form an axial positioning constraint to avoid excessive displacement of the module. The outer diameter of the first ear circumferential limiting section 52 is larger than that of the square limiting section 51. During the pulling process, the diameter difference forms a stroke limit. Combined with the convenient operation of the pull handle 54, the module is stably connected by the limiting rod when closed. When unloading, simply pull outward to release the circumferential lock and allow rotational separation.
[0038] The outer diameter of the square limiting segment 51 is larger than that of the second ear circumferential limiting segment 53. The first ear circumferential limiting segment 52 is adapted to the first through hole 3511. The first ear circumferential limiting segment 52 and the second ear circumferential limiting segment 53 correspond to the first through hole 3511 and the second through hole 3512, respectively, to form an axial limiting to restrict the pull stroke of the axial push-pull limiting rod 5. The pull handle 54 is fastened to the head of the axial push-pull limiting rod 5. The square limiting segment 51, the first ear circumferential limiting segment 52, the second ear circumferential limiting segment 53 and the fastening are sequentially arranged on the axial push-pull limiting rod 5. The pull handle 54 installed on the head uses a square limiting section 51 with an outer diameter larger than that of the second ear circumferential limiting section 53 to fit into the square limiting hole 342 for precise circumferential fixation. The first ear circumferential limiting section 52 fits into the first through hole 3511, and the second ear circumferential limiting section 53 fits into the second through hole 3512. The two respectively form axial limiting. The axial push-pull limiting rod 5 is precisely limited by the diameter difference. The pull handle 54 is easy to operate, and the limiting rod is stably connected to the upper and lower modules when the module is closed. The locking is released by the pull operation when unloading.
[0039] A limiting plane 541 is provided directly below the pull handle 54, and a matching second limiting plane 3513 is provided directly in front of the second ear. When the axially pushed limiting rod 5 is in the inserted state, the two limiting planes are parallel and aligned, and the planes fit together to form a limit. When the axially pushed limiting rod 5 is pulled outward until the square limiting section 51 disengages from the square limiting hole 342, the first limiting plane 541 and the second limiting plane 3513 are axially offset, releasing the limit and allowing the axially pushed limiting rod 5 to rotate around the axis. By providing a limiting plane directly below the pull handle 54, and simultaneously... The second ear wing is provided with two matching limiting planes 3513. Utilizing the planar fit and misalignment characteristics of the two, when the axial push-pull limiting rod 5 is in the inserted state, the two limiting planes are parallel and closely fitted to form a stable circumferential and axial limit, ensuring the reliability of the connection between the upper and lower modules. When the limiting rod is pulled outward to make the square limiting segment 51 disengage from the square limiting hole 342, the two limiting planes are axially misaligned, quickly releasing the limiting constraint and allowing the axial push-pull limiting rod 5 to rotate freely around the axis, creating conditions for the separation and unloading operation of the lower slag collection and unloading module 35.
[0040] At the bottom left corner of the lower slag collection and unloading module 35, a lifting handle 6 is axially connected and installed. The height of the lifting handle 6 is two-thirds of the overall height of the lower slag collection and unloading module 35, and its width is the same as the width of the lower slag collection and unloading module 35. When the axially pushed and pulled limit rod 5 is pulled outward to disengage the square limit section 51 from the square limit hole 342, the lower slag collection and unloading module 35 will slightly shift downward along the axial direction due to its own weight. At this time, by applying an upward axial pulling force through the lifting handle 6, the lower slag collection and unloading module 35 can be rotated, allowing the accumulated debris inside to be completely discharged under the action of gravity. The lifting handle 6, with an axial connection at the bottom of the corner and an installation height of two-thirds of the overall height of the module and a width consistent with the module, utilizes the axial connection structure between the handle and the bottom of the module. After the axial push-pull limit rod 5 is released from locking, when the module moves slightly downward due to its own weight, an upward axial pulling force can be applied by pulling the handle 6, causing the module to flip around the connection point as a fulcrum. The height and width design of the handle ensures that the direction of the applied force matches the center of gravity of the module, allowing the accumulated debris inside to be completely discharged along the inclined guide surface 31 under the action of gravity. This avoids the problem of residue caused by manual contact with dirty areas or repeated dumping, achieving the purpose of labor-saving, thorough and hygienic unloading process.
[0041] The specific working principle is as follows: A detachable inclined guide interception basket 3 is set inside the rectangular bearing base 1. The inclined guide surface 31 arranged along the diagonal inside guides the debris in the rainwater to the low-level slag collection area 311 for concentrated accumulation. At the same time, the high-level flow area 312 and the hollow structure of the basket body ensure that the rainwater is discharged quickly. Combined with the linear drainage channel 21 design of the rainwater grate 2, efficient solid-liquid separation and continuous unobstructed drainage channels are achieved. The interception basket adopts an axial movable connection structure between the upper positioning installation module 34 and the lower slag collection and unloading module 35. Combined with the narrow-mouth hidden handle 4 on the top, it is stably embedded in the base through the cooperation of the limiting rod and the limiting hole during operation. When cleaning, the lower module can be quickly separated by simply pulling the limiting rod and lifting the handle 6. There is no need for overall disassembly or deep pipe operation, which achieves the purpose of directional collection and concentration of debris and convenient and labor-saving maintenance. By setting an axial push-pull limiting rod 5 and its matching square limiting section 51, limiting plane and other structures at the connection between the upper and lower modules, and by using the matching fit between the limiting rod through the axial connecting hole 341 and the square limiting hole 342, the circumferential fixation and axial limiting of the module are achieved, ensuring that the structure is stable and does not rotate or shift during operation. When unloading is required, the limiting rod is pulled to make the square limiting section 51 disengage from the limiting hole. At this time, the limiting plane is misaligned and the constraint is released. The lower slag collection and unloading module 35 moves slightly downward due to its own weight. By applying a pulling force through the lifting handle 6 connected axially at the bottom, the module can be rotated around the connection point as the fulcrum, so that the internal debris is completely unloaded along the inclined guide surface 31 under the action of gravity, avoiding manual contact and residue problems.
[0042] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A road storm drain cover that is easy to clean, comprising a rectangular support base (1), characterized in that: A rainwater grate (2) is axially fitted on the upper surface of the rectangular support base (1). Several linear drainage grooves (21) are opened on the surface of the rainwater grate (2). An inclined flow-guiding interception basket (3) is detachably installed directly below the rainwater grate (2) through the limiting structure of the rectangular support base (1). The inclined flow-guiding interception basket (3) is a cuboid cavity structure. An inclined flow-guiding surface (31) is set inside it along the diagonal direction, so that the bottom end of the inclined flow-guiding surface (31) forms a low-level slag collection area (311) and the top end forms a high-level flow passage area (312).
2. The road storm drain cover that is easy to clean according to claim 1, characterized in that: The inclined flow guide interception basket (3) has a narrowed receiving groove (32) that matches its top contour. An axial hidden handle (4) is fitted into the receiving groove. The axial hidden handle (4) is normally completely embedded in the receiving groove. When in use, force is applied to one end of the hidden handle (4) to generate an axial lifting force with the top central axis as the force fulcrum. The inclined flow guide interception basket (3) is composed of an upper positioning and installation module (34) and a lower slag collection and unloading module (35).
3. The road storm drain cover that is easy to clean according to claim 2, characterized in that: The lower slag collection and unloading module (35) is located in the lower left area of the inclined flow guide interception basket (3), and the lower slag collection area (311) is directly above it. The top of the lower slag collection and unloading module (35) is adapted to be installed on the left side of the upper positioning and installation module (34) through an axial movable connection structure. The upper positioning and installation module (34) and the lower slag collection and unloading module (35) are fully adapted and fitted in the working state. Both the lower slag collection and unloading module (35) and the upper positioning and installation module (34) are provided with small strip-shaped water passage holes (33). The width of the small strip-shaped water passage hole (33) is half the width of the linear drainage channel (21) on the rainwater grate (2).
4. A road storm drain cover that is easy to clean according to claim 3, characterized in that: An axial connection hole (341) is provided at the axial connection between the upper positioning and installation module (34) and the lower slag collection and unloading module (35). A square limiting hole (342) is provided at the rear end of the axial connection hole (341). The diameter of the square limiting hole (342) is smaller than the overall diameter of the axial connection hole (341). Two axial connection lugs (351) are provided directly above the lower slag collection and unloading module (35).
5. A road storm drain cover that is easy to clean according to claim 4, characterized in that: The axial connecting lug (351) is provided with a first through hole (3511) and a second through hole (3512). An axial push-pull limiting rod (5) is axially connected between the axial connecting hole (341) and the square limiting hole (342) of the upper positioning and mounting module (34) and the first through hole (3511) and the second through hole (3512) of the axial connecting lug (351) of the lower slag collection and unloading module (35).
6. A road storm drain cover that is easy to clean according to claim 5, characterized in that: The axial push-pull limiting rod (5) also includes a square limiting section (51), a first ear circumferential limiting section (52), a second ear circumferential limiting section (53), and a pull handle (54) arranged in sequence. The square limiting section (51) and the square limiting hole (342) are fitted together to achieve circumferential limiting. The diameter of the second ear circumferential limiting section (53) is adapted to the second through hole (3512), and its tail forms an axial limiting with the second through hole (3512). The outer diameter of the first ear circumferential limiting section (52) is larger than that of the square limiting section (51).
7. A road storm drain cover that is easy to clean according to claim 6, characterized in that: The outer diameter of the square limiting segment (51) is larger than that of the second ear circumferential limiting segment (53). The first ear circumferential limiting segment (52) is adapted to the first through hole (3511). The first ear circumferential limiting segment (52) and the second ear circumferential limiting segment (53) correspond to the first through hole (3511) and the second through hole (3512) respectively to form an axial limiting to limit the pull stroke of the axial push-pull limiting rod (5). The pull handle (54) is fastened to the head of the axial push-pull limiting rod (5).
8. A road storm drain cover that is easy to clean according to claim 7, characterized in that: A limiting plane (541) is provided directly below the pull handle (54), and a matching second limiting plane (3513) is provided in front of the second ear. When the axial push-pull limiting rod (5) is in the insertion state, the first limiting plane (541) and the second limiting plane (3513) are parallel and aligned and form a limit by the plane fitting. When the axial push-pull limiting rod (5) is pulled outward until the square limiting section (51) is disengaged from the square limiting hole (342), the first limiting plane (541) and the second limiting plane (3513) are axially offset and the limit is released, so that the axial push-pull limiting rod (5) can rotate around the axis.
9. A road storm drain cover that is easy to clean according to claim 8, characterized in that: At the bottom left corner of the lower slag collection and unloading module (35), a lifting handle (6) is axially connected and installed. The height of the lifting handle (6) is two-thirds of the overall height of the lower slag collection and unloading module (35), and its width is consistent with the width of the lower slag collection and unloading module (35). When the axial push-pull limit rod (5) is pulled outward to make the square limit section (51) disengage from the square limit hole (342), the lower slag collection and unloading module (35) moves slightly downward along the axis due to its own weight. At this time, by applying an upward axial pulling force through the lifting handle (6), the lower slag collection and unloading module (35) can be turned over, so that the debris accumulated inside is completely unloaded under the action of gravity.