Silencing well lid

Abstract

The utility model relates to a silencing well lid, and belongs to the technical field of well lid installation. Comprising at least one conical surface used for installation, and further comprises at least one annular installation part used for self installation and positioning, and a matched cover plate is installed on a cover seat, and a silencing pad used for preventing direct contact between the cover plate and the cover seat is additionally installed between the cover plate and the cover seat. According to the silencing well lid, the cover plate and the cover base are completely separated, and meanwhile installation is convenient.

Description

Technical Field

[0001] The utility model relates to a sound-absorbing manhole cover and belongs to the technical field of manhole cover installation. Background Art

[0002] Manhole covers are facilities used to cover deep wells on the road. Their main function is to prevent people or objects from falling. In urban engineering construction, manhole covers play an important role. They are usually designed in a circular shape because they can better disperse the load when under pressure and are not easy to deform or break.

[0003] There are indeed some problems with the composite manhole covers currently on the market, such as the manhole cover and the base not fitting tightly, which causes noise when vehicles pass by. In order to solve these problems, the market currently adds anti-skid and anti-vibration designs to eliminate the collision between the manhole cover and the base. Specifically, a layer of anti-skid material, such as rubber or polymer material, is added between the base and the manhole cover to increase friction and prevent the manhole cover from sliding. At the same time, shock-absorbing materials can also be added between the manhole cover and the base to reduce the noise generated when vehicles pass over. The existing Chinese utility model patent with publication number CN218861610U includes a cover seat, a matching cover plate is arranged on the cover seat, a cover plate is arranged on the upper end of the cover seat, an L-shaped silencer is arranged between the cover plate and the cover seat, the outer ring diameter of the silencer is set to the same as the outer ring diameter of the cover plate, the cover plate is arranged on the upper end of the silencer, and an upwardly protruding positioning ring is arranged on the inner ring of the cover seat. An annular accommodating cavity is formed between the positioning ring and the mounting surfaces of the cover seat and the cover plate. The L-shaped silencer is buckled in the annular accommodating cavity, and one side of the silencer is in contact with the upper end surface of the positioning ring.

[0004] In the process of implementing the technical solution of this application, the inventor discovered that there are at least the following technical problems in the prior art:

[0005] After long-term use, the outer cylindrical surface of the cover plate is prone to friction and collision with the cover seat. If a fully separated gasket is used (such as the Chinese invention patent with publication number CN1364963), if the gasket and the manhole cover or the base are to fit tightly to eliminate the collision between the manhole cover and the base, the gasket needs to be slightly larger, which will make the gasket difficult to install and position. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a sound-absorbing manhole cover which completely blocks the cover plate and the cover seat and is convenient for installation.

[0007] The silencer manhole cover described in the utility model includes a matching cover plate installed on a cover seat, a silencer pad is installed between the cover plate and the cover seat to prevent the cover plate from directly contacting the cover seat, the silencer pad includes at least one conical surface for installation, and the silencer pad also includes at least one annular installation portion for its own installation and positioning.

[0008] Furthermore, the conical surface is arranged as an inner conical surface, and the outer circular surface of the cover plate is provided with an outer conical surface matching the inner conical surface.

[0009] Furthermore, the annular mounting portion is an annular boss arranged at the lower end of the sound-absorbing pad, and the annular boss can be installed in an annular groove opened on the cover seat.

[0010] Furthermore, it also includes a leveling mechanism arranged on the outer ring of the cover seat, and the leveling mechanism is used to adjust the horizontal height of the cover seat.

[0011] Furthermore, the leveling mechanism includes an adjusting screw for supporting the cover seat and enabling the cover seat to maintain a level state, and an outer ring of the cover seat is provided with an accommodating hole for accommodating the screw.

[0012] Furthermore, a positioning seat is installed at the lower end of the cover seat, and a positioning cylinder is provided at the lower end of the positioning seat.

[0013] Furthermore, a conical mounting surface is provided on the outer circumferential surface of the positioning cylinder.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses a sound-absorbing pad which completely blocks the cover plate and the cover seat; the conical surface of the sound-absorbing pad cooperates with the outer cylindrical surface of the cover plate to facilitate the installation of the cover plate; the annular mounting portion of the sound-absorbing pad cooperates with the cover seat to facilitate the positioning and installation of the sound-absorbing pad; the sound-absorbing pad is used to completely block the cover seat and the cover plate, thereby reducing the collision and friction between the manhole cover and the base and greatly reducing the generation of noise.

[0016] The leveling mechanism includes adjustment screws for supporting the cover seat and keeping the cover seat level. The outer ring of the cover seat is provided with a receiving hole for accommodating the screw. By adjusting the height of the screw, the horizontal height of the cover seat can be adjusted so that the cover plate can better adapt to the height changes of the road surface, thereby reducing the impact caused by the wheels when rolling.

[0017] A positioning cylinder is provided at the lower end of the positioning seat, and a conical mounting surface is provided on the outer cylindrical surface of the positioning cylinder, so that the positioning seat can be better installed at the wellhead. The positioning cylinder can prevent construction materials at the wellhead from entering the well and avoid damage to the well edge during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0019] Figure 2 yes Figure 1 Full section view at AA in the middle;

[0020] Figure 3 yes Figure 1 Full section view at the middle BB;

[0021] Figure 4 yes Figure 3 A partial enlarged view of point C in the middle;

[0022] In the figure:

[0023] 1. Cover seat; 11. Accommodating hole;

[0024] 2. Positioning seat; 21. Circular ring plate; 22. Positioning cylinder; 221. Conical mounting surface;

[0025] 3. Cover plate; 31. External cone surface;

[0026] 4. Silence pad; 41. Inner cone surface; 42. Gasket; 43. Ring-shaped mounting portion;

[0027] 5. Leveling mechanism. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figure 1 to Figure 4 As shown, the silencer manhole cover described in the utility model includes a cover seat 1 on which a matching cover plate 3 is installed, a silencer pad 4 is installed between the cover plate 3 and the cover seat 1 to prevent the cover plate 3 from directly contacting the cover seat 1, the silencer pad 4 includes at least one conical surface for installation, and the silencer pad 4 also includes at least one annular mounting portion 43 for its own installation and positioning; a gasket 42 is provided on one side of the silencer pad to prevent the cover plate 3 from contacting the upper and lower end surfaces of the cover seat 1.

[0030] The conical surface 41 is set as an inner conical surface 41, and the outer circular surface of the cover plate 3 is provided with an outer conical surface 31 adapted to the inner conical surface 41. After the silencer pad 4 is installed on the cover seat 1, the cover plate 3 can be directly placed into the silencer pad 4. The inner conical surface 41 avoids interference between the lower end of the cover plate 3 and the upper end of the silencer pad, thereby facilitating the installation of the cover plate 3.

[0031] The annular mounting portion 43 is an annular boss disposed at the lower end of the sound-absorbing pad 4 . The annular boss can be installed in an annular groove provided on the cover seat 1 , thereby increasing the stability of the sound-absorbing pad 4 in the cover seat 1 .

[0032] It also includes a leveling mechanism 5 arranged on the outer ring of the cover seat 1, and the leveling mechanism 5 is used to adjust the horizontal height of the cover seat 1 so that the cover plate 3 can better adapt to the height change of the road surface.

[0033] The leveling mechanism 5 includes adjustment screws for supporting the cover base 1 and keeping the cover base 1 horizontal. The outer ring of the cover base 1 is provided with accommodating holes 11 for accommodating the screws. At least three adjustment screws are evenly installed around the cover base 1. By adjusting the adjustment screws through the accommodating holes 11, the horizontal height of the cover base 1 is adjusted accordingly, so that the silencer manhole cover as a whole can better adapt to the height changes of the road surface, and prevent the noise caused by the road surface and the silencer manhole cover not being on the same plane.

[0034] It also includes a positioning seat 2 installed at the lower end of the cover seat 1, and a positioning cylinder 22 is provided at the lower end of the positioning seat 2. The positioning cylinder 22 can prevent construction materials at the wellhead from entering the well and prevent damage to the edge of the well during construction; the positioning seat 2 includes a circular ring plate 21 for installation, which is used to connect to the lower end of the cover seat 1 through a connecting piece.

[0035] The outer circumferential surface of the positioning tube 22 is provided with a conical mounting surface 221 for easy installation in the wellhead.

[0036] Working process or working principle:

[0037] The sound-absorbing pad 4 completely blocks the cover plate 3 and the cover seat 1. The conical surface 31 of the sound-absorbing pad 4 cooperates with the outer cylindrical surface of the cover plate to facilitate the installation of the cover plate. The annular mounting portion 43 of the sound-absorbing pad 4 cooperates with the cover seat 1 to facilitate the positioning and installation of the sound-absorbing pad 4. The sound-absorbing pad 4 is used to completely block the cover seat 1 and the cover plate 3, reducing the collision and friction between the manhole cover and the base, and greatly reducing the generation of noise.

[0038] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A soundproof manhole cover, comprising a cover base (1) on which a matching cover plate (3) is mounted, characterized in that: A sound-absorbing pad (4) is installed between the cover plate (3) and the cover seat (1) to prevent the cover plate (3) from directly contacting the cover seat (1); the sound-absorbing pad (4) comprises at least one conical surface for installation; and the sound-absorbing pad (4) further comprises at least one annular installation portion (43) for its own installation and positioning; The conical surface is set as an inner conical surface (41), and the outer circumferential surface of the cover plate (3) is provided with an outer conical surface (31) matching the inner conical surface (41).

2. The sound-absorbing manhole cover according to claim 1, characterized in that: The annular mounting portion (43) is an annular boss arranged at the lower end of the sound-absorbing pad (4), and the annular boss can be installed in an annular groove opened on the cover seat (1).

3. The sound-absorbing manhole cover according to claim 1, characterized in that: It also includes a leveling mechanism (5) arranged on the outer ring of the cover seat (1), and the leveling mechanism (5) is used to adjust the horizontal height of the cover seat (1).

4. The sound-absorbing manhole cover according to claim 3 is characterized in that: The leveling mechanism (5) comprises an adjusting screw for supporting the cover seat (1) and enabling the cover seat (1) to maintain horizontality, and an accommodating hole (11) for accommodating the screw is provided on the outer ring of the cover seat (1).

5. The sound-absorbing manhole cover according to claim 1, characterized in that: The cover seat (1) also includes a positioning seat (2) installed at the lower end thereof, and a positioning cylinder (22) is provided at the lower end of the positioning seat (2).

6. The sound-absorbing manhole cover according to claim 5, characterized in that: The outer circumferential surface of the positioning cylinder (22) is provided with a conical mounting surface (221).

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