Low-noise well lid

Abstract

The utility model discloses a low-noise well lid, and belongs to the technical field of well lid noise reduction. The manhole cover is novel in design and ingenious in device, the manhole cover is made of a light and high-strength composite material, the upper-layer noise reduction mechanism is arranged on the lower portion of the manhole cover and comprises a first elastic material and a first damping material, the first elastic material is tightly attached to the lower portion of the manhole cover and used for absorbing impact force generated when the manhole cover is opened and closed, and the first damping material is located below the first elastic material and used for absorbing impact force generated when the manhole cover is opened and closed. The elastic material is used for further consuming impact force and converting noise into heat energy, the elastic material can adopt high-elasticity rubber or silica gel, the materials have good elastic recovery performance and can effectively absorb the impact force, and the damping material can adopt viscoelastic materials such as viscoelastic foam or viscoelastic rubber, so that the damping effect is good. And the materials can generate internal friction when being stressed, so that mechanical energy is converted into heat energy, the generation of noise is further reduced, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of noise reduction of manhole covers, and in particular to a low-noise manhole cover. Background Art

[0002] As part of urban road infrastructure, manhole covers are widely used in drainage, water supply, electricity, communications and other fields. Traditional manhole covers often produce loud noise when opened and closed due to their metal material and structural design, causing noise pollution to the surrounding environment.

[0003] In the design of traditional manhole covers, the need to reduce noise is rarely considered. The existing method is often to add rubber pads or other buffering materials under the manhole covers to reduce noise, but these methods have limited effects and are easily damaged. Therefore, the traditional method of reducing manhole cover noise is not only ineffective, but also has poor durability and requires frequent replacement and maintenance, which increases urban maintenance costs.

[0004] For this reason, the present application proposes a low-noise manhole cover. Utility Model Content

[0005] A low-noise manhole cover proposed in the present application is to solve the problems raised in the above-mentioned background technology; the manhole cover is made of a lightweight and high-strength composite material, and an upper noise reduction mechanism is arranged at the lower part of the manhole cover, including a first elastic material and a first damping material. The first elastic material is tightly attached to the bottom of the manhole cover to absorb the impact force when the manhole cover is opened and closed. The first damping material is located under the first elastic material to further consume the impact force and convert the noise into heat energy. The elastic material can be made of high-elastic rubber or silicone. These materials have good elastic recovery properties and can effectively absorb impact force. The damping material can be made of viscoelastic material, such as viscoelastic foam or viscoelastic rubber. These materials can generate internal friction when subjected to force, thereby converting mechanical energy into heat energy, further reducing the generation of noise, and greatly improving the practicability of the device.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] A low-noise manhole cover comprises a ground, a manhole head and a manhole cover, wherein the ground is provided with a manhole head inside, the upper end of the manhole head is detachably connected with the manhole cover, an upper noise reduction mechanism is provided at the bottom of the manhole cover, the upper noise reduction mechanism comprises a first elastic material and a first damping material, the first elastic material is provided at the bottom of the manhole cover, and a first damping material is provided at the bottom of the first elastic material.

[0008] As a preferred embodiment, a lower noise reduction mechanism is provided at the top of the wellhead, and the lower noise reduction mechanism includes a second damping material and a second elastic material;

[0009] By setting the second elastic material, the elastic material can be made of high-elastic rubber or silicone, which has good elastic recovery performance and can effectively absorb impact force, thereby improving the practicality of the device.

[0010] As a preferred embodiment, the second damping material is arranged at the top of the wellhead, the second elastic material is arranged on the top of the second damping material, and the top of the second elastic material is in contact with the bottom of the first damping material;

[0011] By setting the second damping material, the damping material can be a viscoelastic material, such as viscoelastic foam or viscoelastic rubber, which can generate internal friction when subjected to force, thereby converting mechanical energy into heat energy, further reducing the generation of noise, thereby improving the practicality of the device.

[0012] As a preferred embodiment, a noise reduction mechanism is provided on the outside of the manhole cover, and the noise reduction mechanism includes an inner sealing strip and an outer sealing strip;

[0013] A noise reduction mechanism is arranged on the edge of the manhole cover, and the inner sealing strip and the outer sealing strip are made of soft rubber, thereby improving the practicability of the device.

[0014] As a preferred embodiment, the inner sealing strip is fixedly connected to the outside of the manhole cover, and the outside of the inner sealing strip is detachably connected to the outer sealing strip;

[0015] By providing an inner sealing strip and an outer sealing strip, when the manhole cover is closed, the outer sealing strip can fit tightly against the edge of the wellhead, further reducing noise leakage, thereby improving the practicability of the device.

[0016] As a preferred embodiment, a disassembly mechanism is provided inside the inner sealing strip, and the disassembly mechanism includes a card slot and a card block;

[0017] By arranging inner and outer sealing strips in conjunction with card slots and card blocks, the sealing strips are prone to aging and shrinkage due to wind and sun under long-term use. They are prone to aging, resulting in reduced use effect. The sealing strips can be replaced regularly to ensure their use effect, thereby improving the practicality of the device.

[0018] As a preferred embodiment, the card slot is provided inside the inner sealing strip, a card block is fixedly connected to the inner side of the outer sealing strip, and the card block extends into the card slot;

[0019] Through the card slot and the card block, the card block is made of rubber and has good elasticity. Therefore, when the outer sealing strip is installed, it is convenient to flexibly insert the card block into the card slot, thereby improving the practicality of the device.

[0020] Beneficial effects of this application:

[0021] 1. The low-noise manhole cover is made of a lightweight and high-strength composite material. The upper noise reduction mechanism is arranged at the lower part of the manhole cover and includes a first elastic material and a first damping material. The first elastic material is closely attached under the manhole cover and is used to absorb the impact force when the manhole cover is opened and closed. The first damping material is located under the first elastic material and is used to further consume the impact force and convert the noise into heat energy. The elastic material can be made of high-elastic rubber or silica gel, which have good elastic recovery performance and can effectively absorb the impact force. The damping material can be made of viscoelastic materials such as viscoelastic foam or viscoelastic rubber, which can generate internal friction when stressed, thereby converting mechanical energy into heat energy and further reducing the generation of noise, greatly improving the practicality of the device.

[0022] 2. For this low-noise manhole cover, by setting a noise reduction mechanism at the edge of the manhole cover, the inner sealing strip and the outer sealing strip are made of soft rubber. When the manhole cover is closed, the outer sealing strip can be closely attached to the edge of the wellhead to further reduce noise leakage. During long-term use, the sealing strip is prone to aging due to wind, sun, and rain, resulting in shrinkage and a decline in the use effect. By setting the inner sealing strip and the outer sealing strip in cooperation with the card slot and the card block, the sealing strip can be replaced regularly, thereby ensuring its use effect and greatly improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the main body of the device of this application;

[0024] Figure 2 is a schematic diagram of the interior of the device of this application;

[0025] Figure 3 is a partial schematic diagram of the device of this application;

[0026] Figure 4 is this application Figure 3 The enlarged view at A in.

[0027] Reference numerals in the drawings: 1, ground; 2, wellhead; 3, manhole cover; 4, upper noise reduction mechanism; 41, first elastic material; 42, first damping material; 5, lower noise reduction mechanism; 51, second damping material; 52, second elastic material; 6, noise reduction mechanism; 61, inner sealing strip; 62, outer sealing strip; 7, disassembly mechanism; 71, card slot; 72, card block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments.

[0029] Refer to Figures 1-4A low-noise manhole cover comprises a ground 1, a manhole head 2 and a manhole cover 3. The ground 1 is provided with the manhole head 2 inside, the upper end of the manhole head 2 is detachably connected with the manhole cover 3, an upper noise reduction mechanism 4 is provided at the bottom of the manhole cover 3, the upper noise reduction mechanism 4 comprises a first elastic material 41 and a first damping material 42, the first elastic material 41 is provided at the bottom of the manhole cover 3, and a first damping material 42 is provided at the bottom of the first elastic material 41.

[0030] Reference Figures 1-4 A lower noise reduction mechanism 5 is provided at the top of the wellhead 2, and the lower noise reduction mechanism 5 includes a second damping material 51 and a second elastic material 52; by providing the second elastic material 52, the elastic material can be made of high-elastic rubber or silicone, which has good elastic recovery properties and can effectively absorb impact force, thereby improving the practicability of the device.

[0031] Reference Figures 1-4 The second damping material 51 is arranged at the top of the wellhead 2, and the second elastic material 52 is arranged on the top of the second damping material 51, and the top of the second elastic material 52 contacts the bottom of the first damping material 42; by setting the second damping material 51, the damping material can adopt viscoelastic material, such as viscoelastic foam or viscoelastic rubber, which can generate internal friction when subjected to force, thereby converting mechanical energy into heat energy, further reducing the generation of noise, and thus improving the practicality of the device.

[0032] Reference Figures 1-4 A noise reduction mechanism 6 is arranged on the outside of the manhole cover 3, and the noise reduction mechanism 6 includes an inner sealing strip 61 and an outer sealing strip 62; by arranging the noise reduction mechanism 6 on the edge of the manhole cover 3, the inner sealing strip 61 and the outer sealing strip 62 are made of soft rubber, thereby improving the practicality of the device.

[0033] Reference Figures 1-4 The inner sealing strip 61 is fixedly connected to the outside of the manhole cover 3, and the outside of the inner sealing strip 61 is detachably connected to the outer sealing strip 62; by setting the inner sealing strip 61 and the outer sealing strip 62, when the manhole cover 3 is closed, the outer sealing strip 62 can fit tightly with the edge of the wellhead 2, further reducing noise leakage, thereby improving the practicability of the device.

[0034] Reference Figures 2-4 A disassembly mechanism 7 is provided inside the inner sealing strip 61, and the disassembly mechanism 7 includes a card slot 71 and a card block 72; by arranging the inner sealing strip 61 and the outer sealing strip 62 to cooperate with the card slot 71 and the card block 72, the sealing strip is prone to aging and shrinkage under long-term use due to wind and sun, and is prone to aging, resulting in a decrease in the use effect. The sealing strip can be replaced regularly to ensure its use effect, thereby improving the practicality of the device.

[0035] Reference Figures 2-4The card slot 71 is opened inside the inner sealing strip 61, and the inner side of the outer sealing strip 62 is fixedly connected with a card block 72, and the card block 72 extends into the card slot 71; through the card slot 71 and the card block 72, the card block 72 is made of rubber and has good elasticity. Therefore, when the outer sealing strip 62 is installed, it is convenient to flexibly insert the card block 72 into the card slot 71, thereby improving the practicality of the device.

[0036] Working principle: The manhole cover 3 is made of a lightweight and high-strength composite material. The upper noise reduction mechanism 4 is arranged at the lower part of the manhole cover 3, including a first elastic material 41 and a first damping material 42. The first elastic material 41 is tightly attached to the bottom of the manhole cover 3 to absorb the impact force when the manhole cover 3 is opened and closed. The first damping material 42 is located under the first elastic material 41 to further consume the impact force and convert noise into heat energy.

[0037] The elastic material in the upper noise reduction mechanism 4 and the lower noise reduction mechanism 5 can be made of highly elastic rubber or silicone, which has good elastic recovery performance and can effectively absorb impact force.

[0038] The damping materials in the upper noise reduction mechanism 4 and the lower noise reduction mechanism 5 can be viscoelastic materials, such as viscoelastic foam or viscoelastic rubber, which can generate internal friction when subjected to force, thereby converting mechanical energy into heat energy, further reducing the generation of noise.

[0039] By setting a noise reduction mechanism 6 on the edge of the manhole cover 3, the inner sealing strip 61 and the outer sealing strip 62 are made of soft rubber. When the manhole cover 3 is closed, the outer sealing strip 62 can fit tightly with the edge of the wellhead 2 to further reduce noise leakage.

[0040] The sealing strip is prone to aging and shrinkage due to long-term use due to wind and sun, which leads to reduced use effect. By arranging the inner sealing strip 61 and the outer sealing strip 62 in conjunction with the card slot 71 and the card block 72, the sealing strip can be replaced regularly to ensure its use effect.

[0041] In addition, the elastic material and the damping material can be replaced by other materials with similar properties according to actual needs.

[0042] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A low-noise manhole cover, comprising a ground surface (1), a manhole opening (2) and a manhole cover (3), characterized in that: A wellhead (2) is arranged inside the ground (1); a wellhead (2) is detachably connected to the upper end of the wellhead (2); an upper noise reduction mechanism (4) is arranged at the bottom of the wellhead (3); the upper noise reduction mechanism (4) comprises a first elastic material (41) and a first damping material (42); the first elastic material (41) is arranged at the bottom of the wellhead (3); and the first damping material (42) is arranged at the bottom of the first elastic material (41).

2. A low-noise manhole cover according to claim 1, characterized in that: A lower noise reduction mechanism (5) is provided at the top of the wellhead (2), and the lower noise reduction mechanism (5) comprises a second damping material (51) and a second elastic material (52).

3. A low-noise manhole cover according to claim 2, characterized in that: The second damping material (51) is arranged at the top of the wellhead (2), the top of the second damping material (51) is provided with a second elastic material (52), and the top of the second elastic material (52) is in contact with the bottom of the first damping material (42).

4. A low-noise manhole cover according to claim 1, characterized in that: A noise reduction mechanism (6) is provided on the outside of the manhole cover (3), and the noise reduction mechanism (6) comprises an inner sealing strip (61) and an outer sealing strip (62).

5. A low-noise manhole cover according to claim 4, characterized in that: The inner sealing strip (61) is fixedly connected to the outside of the manhole cover (3), and the outside of the inner sealing strip (61) is detachably connected to the outer sealing strip (62).

6. A low-noise manhole cover according to claim 5, characterized in that: A disassembly mechanism (7) is provided inside the inner sealing strip (61), and the disassembly mechanism (7) comprises a clamping groove (71) and a clamping block (72).

7. A low-noise manhole cover according to claim 6, characterized in that: The clamping groove (71) is provided inside the inner sealing strip (61), a clamping block (72) is fixedly connected to the inner side of the outer sealing strip (62), and the clamping block (72) extends into the inside of the clamping groove (71).

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