Silencing gutter inlet structure

By installing sound-absorbing pads between the rain grate and the base, and utilizing elastic materials and a guide slope design, the problem of noise pollution during the use of rain grate is solved, achieving noise reduction and extended service life.

CN224213485UActive Publication Date: 2026-05-08李宁
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
李宁
Filing Date
2024-11-28
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

After prolonged use, existing storm drain grates are prone to friction and collision with their base when driven over by vehicles, resulting in noise pollution.

Method used

A sound-absorbing pad is installed between the base and the rain grate. The sound-absorbing pad is made of elastic material and reduces friction and collision through guide slope and height adjustment mechanism. The sound-absorbing pad can be made of rubber, polyurethane or polymer composite material.

Benefits of technology

It effectively reduces friction and collision noise between the rain grate and the base, extends service life, and improves installation levelness.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224213485U_ABST
    Figure CN224213485U_ABST
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Abstract

The utility model relates to a silencing gutter inlet structure, and belongs to the technical field of road gutter inlets. Comprising a base used for installation, a rainwater grate is installed on the base, and a silencing gasket is installed between the base and the rainwater grate. The silencing gasket comprises a lower supporting gasket and a side face supporting gasket. The lower supporting gasket is arranged between the upper end face, used for supporting, of the base and the lower end face of the rainwater grate. The side face supporting gasket is arranged between the inner wall of the inner hole of the base and the outer wall of the rainwater grate. The utility model provides a silencing gutter inlet structure which greatly reduces noise pollution.
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Description

Technical Field

[0001] This utility model relates to a noise-reducing rainwater inlet structure, belonging to the technical field of road surface rainwater inlets. Background Technology

[0002] A storm drain grate, also known as a storm drain cover, storm drain cover, or storm drain ditch cover, is an open mesh structure used to cover storm drains or drainage ditches. Its main function is to collect and discharge rainwater while preventing debris such as leaves and garbage from entering the sewer system, thus avoiding blockages in drainage pipes and ensuring the smooth flow of urban drainage systems.

[0003] For example, the existing Chinese utility model patent with publication number CN218405749U includes a rainwater inlet body, a sewage interception frame, and a rainwater grate. The rainwater inlet body has a lower rainwater inlet and an upper rainwater inlet. The lower and upper rainwater inlets have the same structure, and their adjacent ends are connected by a square flange to form the rainwater inlet body. The lower and upper rainwater inlets each have a rainwater inlet base, a pipe connection hole, and a pipe mouth reinforcing rib. The upper inner side of the rainwater inlet base is provided with an anti-fall support groove. There are multiple pipe connection holes distributed in four directions on the outer side of the rainwater inlet base. The outer side of the pipe connection hole is provided with an annular sealing baffle. A sealing gasket is filled between the sealing baffle and the pipe connection hole. The pipe mouth reinforcing rib is connected to the sealing baffle and the upper and lower ends of the rainwater inlet base.

[0004] The inventors have discovered at least the following technical problems in the prior art:

[0005] After prolonged use, passing vehicles can cause friction and collision between the base and the rain grate, resulting in noise pollution. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a sound-absorbing rainwater inlet structure that greatly reduces noise pollution.

[0007] The present invention includes a base for installation, on which a rain grate is installed, and a sound-absorbing pad is installed between the base and the rain grate. The sound-absorbing pad is made of an elastic material.

[0008] Furthermore, the sound-absorbing pad includes a lower support pad and a side support pad, with the lower support pad disposed between the upper end face of the base for support and the lower end face of the rain grate.

[0009] Side support pads are placed between the inner wall of the base hole and the outer wall of the rain grate.

[0010] Furthermore, at least one guide slope is provided on the contact surface between the side support pad and the outer wall of the rain grate or the inner wall of the base hole.

[0011] Furthermore, a fixing strip is provided at the lower end of the lower support pad, and a fixing groove adapted to the fixing strip is provided on the upper surface of the base for supporting the rain grate.

[0012] Furthermore, a height adjustment mechanism is installed on the support plates extending outwards around the base.

[0013] Furthermore, the height adjustment mechanism includes several adjusting screws threaded onto the support plate.

[0014] Furthermore, the elastic material of the sound-absorbing pad can be made of rubber, polyurethane, or polymer composite materials.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention effectively reduces friction and collision between the rain grate and the base by using sound-absorbing pads, thereby reducing noise pollution.

[0017] The installation of sound-absorbing pads can also reduce the damage to rain grates and bases, and extend their service life.

[0018] The height adjustment mechanism ensures better horizontal installation of the rain grate. By adjusting the height of the base, the distance difference between the base and the ground can be better controlled, preventing impact from wheels when passing over the rain grate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0020] Figure 2 This is a top view of Embodiment 1 of this utility model;

[0021] Figure 3 yes Figure 2 Full sectional view at point AA;

[0022] Figure 4 yes Figure 3 Enlarged view of a section at point C;

[0023] Figure 5 yes Figure 2 Full sectional view at point BB;

[0024] Figure 6 yes Figure 5 Enlarged view of a section at point D;

[0025] Figure 7 This is a schematic diagram of the double-grate structure of Embodiment 1 of this utility model;

[0026] Figure 8 This is a top view of the double grate of Embodiment 1 of this utility model;

[0027] Figure 9 yes Figure 8 Full sectional view at EE;

[0028] Figure 10 yes Figure 9 Enlarged view of a section at point F in the middle;

[0029] Figure 11 This is a schematic diagram of the three-compartment structure of Embodiment 1 of this utility model;

[0030] In the picture:

[0031] 1. Rain drain grate; 11. Guide slope;

[0032] 2. Sound-absorbing pad; 21. Side support pad; 22. Lower support pad; 23. Fixing strip;

[0033] 3. Base; 31. Fixing groove; 32. Support plate;

[0034] 4. Height adjustment mechanism;

[0035] 5. Concrete rainwater wells;

[0036] 6. Inclined pads. Detailed Implementation

[0037] Example 1

[0038] like Figures 1 to 11 As shown, the present invention includes a base 3 for installation, a rain grate 1 installed on the base 3, and a sound-absorbing pad 2 installed between the base 3 and the rain grate 1. The sound-absorbing pad 2 is made of elastic material.

[0039] The elastic material of the sound-absorbing pad 2 can be made of rubber, polyurethane or polymer composite material.

[0040] The sound-absorbing pad 2 includes a lower support pad 22 and a side support pad 21. The lower support pad 22 is disposed on the upper end face of the base 3 for support and the lower end face of the rain grate 1; it is used to bear the weight of the rain grate 1 and reduce vertical friction and collision.

[0041] Side support pads 21 are disposed between the inner wall of the inner hole of the base 3 and the outer wall of the rain grate 1. They are used to reduce horizontal friction and collision, further reducing noise.

[0042] At least one guide slope 11 is provided on the contact surface between the side support pad 21 and the outer wall of the rain grate 1 or the inner wall of the inner hole of the base 3.

[0043] A guide slope 11 is provided between the rain grate 1 and the side support pad 21, so that the sound-absorbing pad 2 can be installed on the base 3 first.

[0044] The lower support pad 22 is also provided with a fixing strip 23 at its lower end, and a fixing groove 31 adapted to the fixing strip 23 is provided on the upper surface of the base 3 for supporting the rain grate 1. Through the cooperation of the fixing strip 23 and the fixing groove 31, the stable installation of the sound-absorbing pad 2 between the base 3 and the rain grate 1 can be ensured.

[0045] During installation, the fixing strip 23 can be pre-inserted into the fixing groove 31, and then the rain grate 1 can be placed on it.

[0046] A height adjustment mechanism 4 is installed on the support plates 32 that extend outward around the base 3.

[0047] The height adjustment mechanism 4 includes several adjusting screws threaded onto the support plate 32. By adjusting the height of the screws, the height of the rain grate 1 can be finely adjusted to ensure a proper distance between it and the ground, reducing noise caused by friction.

[0048] The adjusting screws can be evenly installed on the support plate 32 to provide a certain supporting force.

[0049] like Figures 8-10 As shown, when the rain grate 1 is a double-grate structure, a support column is installed in the middle of the base 3 to support the installation of the rain grate 1. Figure 11 As shown, the rain grate 1 of the three-grate system can be used as follows: Figure 10 The same support column is installed; simply extend and install the rain grate 1.

[0050] Working process or working principle:

[0051] After the concrete rainwater well 5 is pre-installed, place the base 3 on top of the concrete rainwater well 5. Adjust the height by driving in the inclined shims 6. Insert the inclined shims 6 (wedge-shaped iron structure) between the base 3 and the concrete rainwater well 5, and fill with cement mortar to make the base more stable. Finally, screw the adjusting screws into the top surface of the concrete rainwater well 5, or you can adjust it directly with the adjusting screws. Before placement, the sound-absorbing shims 2 can be pre-installed in the base 3. Finally, install the rainwater grate 1.

[0052] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A sound-absorbing rainwater inlet structure, comprising a base (3) for installation, on which a rainwater grate (1) is installed, characterized in that, A sound-absorbing pad (2) is installed between the base (3) and the rain grate (1). The sound-absorbing pad (2) is made of elastic material.

2. The sound-absorbing rainwater inlet structure according to claim 1, characterized in that, The sound-absorbing pad (2) includes a lower support pad (22) and a side support pad (21). The lower support pad (22) is disposed on the upper end face of the base (3) for support and the lower end face of the rain grate (1). Side support pads (21) are placed between the inner wall of the inner hole of the base (3) and the outer wall of the rain grate (1).

3. The sound-absorbing rainwater inlet structure according to claim 2, characterized in that, At least one guide slope (11) is provided on the contact surface between the side support pad (21) and the outer wall of the rain grate (1) or the inner wall of the base (3).

4. The sound-absorbing rainwater inlet structure according to claim 2, characterized in that, The lower support pad (22) is also provided with a fixing strip (23) at the lower end, and a fixing groove (31) adapted to the fixing strip (23) is provided on the upper surface of the base (3) for supporting the rain grate (1).

5. The sound-absorbing rainwater inlet structure according to any one of claims 1-4, characterized in that, A height adjustment mechanism (4) is installed on the support plate (32) extending outward around the base (3).

6. The sound-absorbing rainwater inlet structure according to claim 5, characterized in that, The height adjustment mechanism (4) includes several adjusting screws threaded onto the support plate (32).

7. The sound-absorbing rainwater inlet structure according to claim 1, characterized in that, The sound-absorbing pad (2) can be made of rubber, polyurethane or polymer composite material.

Citation Information

Patent Citations

  • Quickly-installed shaped environment-friendly gutter inlet

    CN218405749U