Municipal rainwater grate

By installing connecting rods and collection trays on the storm drain grates, the problems of items falling in and clogging are solved, enabling easy removal of fallen items and maintaining unobstructed drainage, thus improving the safety and convenience of municipal storm drain grates.

CN223824311UActive Publication Date: 2026-01-23CHANGJIANG QINGYUAN ENERGY SAVING & ENVIRONMENTAL PROTECTION CO LTD +2
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Patent Information

Application Number
CN202520192819.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-01-23
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Existing municipal storm drains in densely populated urban areas can easily cause important items to fall into the sewers, and small items are easily blocked by leaves or plastic bags. The existing anti-fall-off design requires opening the storm drain to retrieve items, which is inconvenient.

Method used

A connecting rod and a collection tray are installed on the main body of the rain grate. The collection tray is suspended under the rain grate by the connecting rod. When items fall, they are caught by the collection tray. When removing items, the connecting rod is lifted to bring the collection tray close to the underside of the rain grate. The items are then removed through the holes. The collection tray is fixed by a limiting device for easy operation.

Benefits of technology

It allows for easy removal of fallen items without opening the drain grate, avoiding drainage problems caused by blockages and improving safety and convenience.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223824311U_ABST
    Figure CN223824311U_ABST
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Abstract

The municipal rainwater grate comprises a rainwater grate body, and further comprises connecting rods and a collecting disc, through holes are formed in the two sides of the rainwater grate body respectively, the connecting rods are installed in the through holes in the two sides in a sliding mode respectively, limiting parts are arranged at the upper ends of the connecting rods, and the collecting disc is located on the lower side of the rainwater grate body. The lower end of the connecting rod is connected with the collecting disc. The collecting disc is installed on the rainwater grate body through the connecting rod, articles falling from the rainwater grate body can be collected by the collecting disc, and when the articles need to be taken out, the connecting rod is lifted upwards, the collecting disc is close to the lower side of the rainwater grate body, and therefore the falling articles can be taken out through the holes in the rainwater grate body under the condition that the rainwater grate does not need to be opened.
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Description

Technical Field

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

[0002] Municipal storm drain grates are typically installed at the junction of the road surface and the sewer system. To facilitate drainage, storm drain grates usually have large, elongated openings. However, in daily life, some storm drain grates are installed in densely populated urban areas, posing a risk that important items could easily fall into the sewers.

[0003] Chinese patent document CN212317124U, published on January 8, 2021, discloses a rain grate designed to prevent items from falling into the grate. The grate includes a fixed frame and a rain grate cover mounted on the fixed frame. The rain grate cover comprises a diamond-shaped grating and inserts on both sides of the diamond-shaped grating. The fixed frame has insertion holes, and the rain grate cover and the fixed frame are connected by the inserts and inserts into the insertion holes. Its advantages are: by changing the structure and fixing method of the rain grate cover surface of traditional rain grates, the possibility of pedestrians and items falling into the rain grate is greatly reduced; the diamond-shaped grating drainage structure can effectively prevent valuables such as mobile phones from falling. Its disadvantage is: for smaller items, such as keys and rings, if the diamond-shaped holes are small, the rain grate is easily clogged by leaves or plastic bags during rain. If a sump-type structure is used, the rain grate needs to be opened when removing items from the sump-type structure. Utility Model Content

[0004] The purpose of this utility model is to provide a municipal storm drain grate. A collection tray is installed on the storm drain grate body via a connecting rod. Items falling from the storm drain grate body can be collected by the collection tray. When it is necessary to remove the item, the connecting rod is lifted, and the collection tray moves close to the lower side of the storm drain grate body. Thus, the fallen item can be removed through the holes on the storm drain grate body without opening the storm drain grate.

[0005] To achieve the above objectives, this utility model provides a municipal storm drain grate, including a storm drain grate body, a connecting rod, and a collection tray. The storm drain grate body has through holes on both sides, and a connecting rod is slidably installed in each of the through holes on both sides. The upper end of the connecting rod is provided with a limiting part. The collection tray is located on the lower side of the storm drain grate body, and the lower end of the connecting rod is connected to the collection tray.

[0006] The collection tray is equipped with filter holes.

[0007] The rain grate body has two through holes on each side, and a connecting rod is movably inserted into each through hole. The limiting part is a connecting rod that connects the upper ends of the two connecting rods on each side.

[0008] The upper side of the rain grate body is provided with a groove for accommodating and placing the limiting part.

[0009] The lower end of the connecting rod is provided with a screw, which passes downward through the collecting tray and is then fitted with a nut.

[0010] It also includes a limiting device, which is used to limit the collection tray when it moves up toward the rain grate body.

[0011] The limiting device includes limiting blocks and spring pieces. Limiting blocks are fixedly installed on both sides or all four sides of the collection tray. A spring piece is fixedly installed on the lower side of the rain grate body at the position corresponding to the limiting block. A protrusion is provided at the lower end of the spring piece on the side near the collection tray.

[0012] The limiting device is a magnet installed on the underside of the rain grate body or on the collection tray.

[0013] Compared with the prior art, this utility model has the following technical effects:

[0014] 1. This utility model has a collection tray installed on the rain grate body via a connecting rod. Items falling from the rain grate body can be collected by the collection tray. When it is necessary to remove them, the connecting rod is lifted, and the collection tray is close to the lower side of the rain grate body. Thus, the fallen items can be removed through the holes on the rain grate body without opening the rain grate.

[0015] 2. The rain grate of this utility model also includes a limiting device, which is used to limit the collection tray when it moves up and closes to the rain grate body. This way, when taking out items, it is not necessary to keep lifting the connecting rod, making it more convenient to take out items. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of AA.

[0019] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of BB.

[0020] Figure 4 This is a schematic diagram of the structure of the collection tray of this utility model when it is lifted.

[0021] Figure 5This is a schematic diagram of the structure of the limiting device of this utility model when it is a magnet.

[0022] Figure 6 This is a schematic diagram of the structure of the collecting tray when the limiting device of this utility model is a magnet.

[0023] Figure label:

[0024] Rain grate body 10, through hole 11, groove 12;

[0025] Connecting rod 20, limiting part 21, screw 22, nut 23;

[0026] Collection disk 30,

[0027] Limiting device 40, limiting block 41, spring piece 42, protrusion 421, magnet 43. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0029] Example 1:

[0030] See Figure 1-6 A municipal storm drain grate includes a storm drain grate body 10, a connecting rod 20, and a collection tray 30. The storm drain grate body 10 has through holes 11 on both sides, and the connecting rod 20 is slidably installed in the through holes 11 on both sides. The upper end of the connecting rod 20 is provided with a limiting part 21. The collection tray 30 is located on the lower side of the storm drain grate body 10, and the lower end of the connecting rod 20 is connected to the collection tray 30.

[0031] A collection tray 30 is installed on the main body 10 of the rain grate via a connecting rod 20. Items falling from the main body 10 of the rain grate can be collected by the collection tray 30. When it is necessary to remove the item, the connecting rod 20 is lifted, and the collection tray 30 is brought close to the lower side of the main body 10 of the rain grate. Thus, the fallen item can be removed through the hole on the main body of the rain grate without opening the rain grate.

[0032] See Figure 3When the drain grate body 10 is in normal use, the upper end of the connecting rod 20 is limited by the limiting part 21, and the collection tray 30 is suspended on the lower side of the drain grate body 10 via the connecting rod 20. There is a gap between the collection tray 30 and the drain grate body 10 to facilitate drainage. The collection tray 30 can completely cover the holes on the drain grate body 10, so when an item falls through the holes, it is caught by the collection tray 30. To remove the item, lift the connecting rod 20, and the collection tray 30 will be close to the lower side of the drain grate body 10. The dropped item can then be easily removed through the holes on the drain grate body 10. Alternatively, to remove the item, a finger can be inserted through the holes on the drain grate body 10.

[0033] In this embodiment, the connecting rod 20 can be a screw, the head of which is the limiting part 21, and the other end of the screw is connected and fixed to the rain grate body 10.

[0034] Furthermore, to facilitate drainage and prevent water accumulation in the collection tray 30, a filter hole is provided. When the filter hole of the collection tray 30 is blocked by leaves or debris, drainage will not be affected because there is a gap between the collection tray 30 and the rain grate body 10.

[0035] Specifically, the collection tray 30 can be made of a perforated plate or a wire mesh. In this embodiment, the diameter or the longest width of the filter holes is less than 15 mm.

[0036] To improve the stability of the collection tray 30 and facilitate its lifting, two through holes 11 are provided on each side of the rain grate body 10. A connecting rod 20 is movably inserted into each through hole 11, and the limiting part 21 is a connecting rod connecting the upper ends of the two connecting rods 20 on each side. Specifically, the connecting rod 20 has a U-shaped structure.

[0037] Furthermore, to prevent the limiting part 21 from protruding from the upper side of the drain grate body 10 and tripping pedestrians. See also Figure 2 The upper side of the rain grate body 10 is provided with a groove 12 for accommodating and placing the limiting part 21. During normal use, the limiting part 21 is located in the groove 12.

[0038] In this embodiment, to facilitate the connection between the connecting rod 20 and the collecting tray 30, see [reference needed]. Figure 3 A screw 22 is provided at the lower end of the connecting rod 20. The screw 22 passes downward through the collecting plate 30 and is fitted with a nut 23.

[0039] Example 2:

[0040] Based on Embodiment 1, the rain grate of this application further includes a limiting device 40. The limiting device 40 is used to limit the collection tray 30 when it moves upward and close to the rain grate body 10. In this way, when taking out items, it is not necessary to keep the connecting rod 20 up.

[0041] See Figure 3 , 4 In one embodiment, the limiting device 40 includes a limiting block 41 and a spring piece 42. The limiting blocks 41 are fixedly installed on both sides or all four sides of the collection tray 30. The spring piece 42 is fixedly installed on the lower side of the rain grate body 10 at the position corresponding to the limiting block 41. The lower end of the spring piece 42 is provided with a protrusion 421 on the side near the collection tray 30.

[0042] In this design, the upper end of the spring piece 42 can be fixed to the lower side of the rain grate body 10 by bolts or welding. The limiting block 41 has a triangular structure, and the protrusion 421 also has a triangular structure. See [link / reference] Figure 4 When the collection tray 30 is lifted, the protrusion 421 abuts against the limiting block 41, and the protrusion 421 swings outward. As the collection tray 30 moves upward, the protrusion 421 moves to the lower side of the limiting block 41. After the connecting rod 20 is released, the spring force of the spring piece 42 causes the protrusion 421 to limit the limiting block 41.

[0043] When retrieving an item, the collection tray 30 needs to be reset. Pressing down the connecting rod 20 will reset the collection tray 30. Figure 3 As shown.

[0044] See Figure 5 , 6 In another embodiment, the limiting device 40 is a magnet 43 installed on the underside of the rain grate body 10 or on the collection tray 30.

[0045] In practice, an extended support plate is provided on the upper side wall of the collection tray 30. When the magnet 43 is installed on the support plate, the rain grate body 10 is made of iron or steel. When the magnet 43 is installed on the lower side of the rain grate body 10, the support plate is made of iron or steel.

[0046] In this embodiment, the magnet 43 is a powerful magnet with a central hole, which is easy to install and fix with screws.

[0047] The method of use or principle of this utility model:

[0048] See Figure 3 , 5When the rain grate body 10 is in normal use, the upper end of the connecting rod 20 is limited by the limiting part 21, and the collection tray 30 is suspended on the lower side of the rain grate body 10 by the connecting rod 20. There is a gap between the collection tray 30 and the rain grate body 10 to facilitate drainage. The collection tray 30 can completely cover the holes on the rain grate body 10, so when an item falls from the holes of the rain grate body 10, it is caught by the collection tray 30.

[0049] When retrieving items, see Figure 4 , 6 Lift the connecting rod 20, and the collection tray 30 will be close to the lower side of the rain grate body 10. The collection tray 30 will be limited by the limiting device 40. In this way, when taking out items, it is not necessary to keep lifting the connecting rod 20. It is more convenient to take out the fallen items through the holes on the rain grate body 10.

Claims

1. A municipal storm drain grate, comprising a storm drain grate body (10), characterized in that: It also includes a connecting rod (20) and a collection tray (30). The rain grate body (10) has through holes (11) on both sides. The connecting rod (20) is slidably installed in the through holes (11) on both sides. The upper end of the connecting rod (20) is provided with a limiting part (21). The collection tray (30) is located on the lower side of the rain grate body (10). The lower end of the connecting rod (20) is connected to the collection tray (30).

2. A municipal storm drain grate according to claim 1, characterized in that: The collection tray (30) is provided with filter holes.

3. A municipal storm drain grate according to claim 1, characterized in that: Two through holes (11) are provided on both sides of the rain grate body (10). A connecting rod (20) is movably inserted into each through hole (11). The limiting part (21) is a connecting rod that connects the upper ends of the two connecting rods (20) on each side.

4. A municipal storm drain grate according to claim 1 or 3, characterized in that: The upper side of the rain grate body (10) is provided with a groove (12) for accommodating and placing the limiting part (21).

5. A municipal storm drain grate according to claim 1 or 3, characterized in that: The lower end of the connecting rod (20) is provided with a screw (22), and the screw (22) passes downward through the collecting plate (30) and is then fitted with a nut (23).

6. A municipal storm drain grate according to claim 1, 2, or 3, characterized in that: It also includes a limiting device (40) for limiting the collection tray (30) when it moves up toward the rain grate body (10).

7. A municipal storm drain grate according to claim 6, characterized in that: The limiting device (40) includes a limiting block (41) and a spring piece (42). The limiting blocks (41) are fixedly installed on both sides or all four sides of the collection tray (30). The spring piece (42) is fixedly installed on the lower side of the rain grate body (10) at the position corresponding to the limiting block (41). The lower end of the spring piece (42) is provided with a protrusion (421) on the side near the collection tray (30).

8. A municipal storm drain grate according to claim 6, characterized in that: The limiting device (40) is a magnet (43) installed on the underside of the rain grate body (10) or on the collection tray (30).

Citation Information

Patent Citations

  • Anti-falling rainwater grate

    CN212317124U