CN-224213378-U - Control abnormal sound manhole cover

Abstract

The utility model belongs to the field of municipal engineering, and particularly relates to a control abnormal sound manhole cover, which comprises a cover plate and a manhole seat, wherein a plurality of special-shaped notches are formed in the periphery of an annular groove on the supporting surface of the manhole seat, a damping washer matched with the shape of the annular groove is embedded in the annular groove, a plurality of rectangular grooves are formed in the periphery of the side wall of the manhole seat, L-shaped damping cushion blocks are embedded in the rectangular grooves, and the convex blocks of the L-shaped damping cushion blocks are abutted against the side wall of the cover plate. The shock-absorbing gasket is tightly clamped with the groove, is not easy to fall off, and solves the problem of shock caused by falling or damage of the shock-absorbing gasket in the prior art. Meanwhile, the side wall of the cover plate is in direct contact with the L-shaped damping cushion block, abnormal sound caused by friction between the side wall of the cover plate and the well seat is reduced, and the vibration problem of the manhole cover is further relieved.

Inventors

• ZHANG ZONGJIAN
• WANG HAO
• ZHANG KE
• MA LIGANG
• WU YUE
• Cao Zhaofa
• MENG QINGTAO
• GAO HAILONG
• ZHANG LIANKE

Assignees

• 济南城建集团有限公司
• 济南城市建设集团有限公司

Dates

Publication Date

20260508

Application Date

20250725

Claims (5)

1. 1. A control abnormal sound manhole cover comprises a cover plate and a manhole seat (1) and is characterized in that a plurality of special-shaped notches (3) are uniformly formed in the periphery of an annular groove (2) on a supporting surface of the manhole seat (1), a shock absorption gasket (4) matched with the shape of the annular groove (2) is embedded in the annular groove (2), a plurality of rectangular grooves (5) are uniformly formed in the periphery of the side wall of the manhole seat (1), the upper surface of each rectangular groove (5) is lower than the upper surface of the manhole seat (1), the lower surface of each rectangular groove (5) is higher than the upper surface of the shock absorption gasket (4), an L-shaped shock absorption cushion block (6) is embedded in each rectangular groove (5), each L-shaped shock absorption cushion block (6) comprises a rectangular block (7) matched with the shape of each rectangular groove (5), a lug (8) facing the circle center of the manhole seat (1) is integrally formed in the bottom of each rectangular block (7), and each lug (8) is abutted against the side wall of the cover plate.
2. 2. The inspection well lid for controlling abnormal sound according to claim 1, wherein the downward thickness of the protruding block (8) is gradually increased, and the surface of the protruding block (8) abutting against the side wall of the cover plate is an arc-shaped surface.
3. 3. The abnormal sound control manhole cover according to claim 1, wherein the special-shaped notch (3) is in a trapezoid shape.
4. 4. The abnormal sound control manhole cover according to claim 1, wherein the L-shaped damping cushion block (6) is a rubber block.
5. 5. The abnormal sound control manhole cover according to claim 1, wherein the L-shaped damping cushion block (6) is fixed in the rectangular groove (5) through adhesive.

Description

Control abnormal sound manhole cover Technical Field The utility model belongs to the field of municipal engineering, and particularly relates to a control abnormal sound manhole cover. Background The inspection well cover consists of a cover plate and a well seat, and the well seat is connected with the cover plate through a rotating shaft. The inspection well lid is in motor vehicle lane or non-motor vehicle lane position more, and when the vehicle passed through, common inspection well lid shakes and makes a sound, and the vehicle rolls the well lid, if because of the shock attenuation packing ring lacks or damages the vibrations sound that arouses great, causes noise to disturb the people. The main reason that the damping washer between the cover plate and the well seat is frequently lost or damaged is that the clamping force degree of the groove below the damping washer and the damping washer is small, so that the damping washer easily slips out of the groove after being used for a period of time, and the damping effect cannot be achieved. New designs of existing manhole covers are required to make it difficult to produce a rattle between the cover plate and the well base. Disclosure of Invention The invention aims to solve the problem of overcoming the defects of the background technology and providing a control abnormal sound manhole cover. The invention is realized by the following technical scheme: A control abnormal sound manhole cover comprises a cover plate and a manhole seat, wherein a plurality of special-shaped notches are uniformly formed in the periphery of an annular groove on a supporting surface of the manhole seat, a shock absorption gasket matched with the shape of the annular groove is embedded in the annular groove, a plurality of rectangular grooves are uniformly formed in the periphery of the side wall of the manhole seat, the upper surface of each rectangular groove is lower than the upper surface of the manhole seat, the lower surface of each rectangular groove is higher than the upper surface of the shock absorption gasket, an L-shaped shock absorption cushion block is embedded in each rectangular groove, each L-shaped shock absorption cushion block comprises a rectangular block matched with the shape of each rectangular groove, a bump facing the circle center of the manhole seat is integrally arranged at the bottom of each rectangular block, and the bumps are abutted against the side wall of the cover plate. Preferably, the downward thickness of the protruding block is gradually increased, and one surface of the protruding block, which is abutted against the side wall of the cover plate, is an arc-shaped surface. Preferably, the shape of the special-shaped notch is a trapezoid. Preferably, the L-shaped damping cushion block is a rubber block. Preferably, the L-shaped damping cushion block is fixed in the rectangular groove through adhesive. The damping washer of the inspection well lid can be better embedded into the groove, the damping washer is tightly clamped with the groove, and the damping washer is not easy to fall off, so that the problem of vibration caused by falling or damage of the damping washer in the prior art is solved. Meanwhile, the L-shaped damping cushion blocks are arranged on the side wall of the well seat, so that the side wall of the cover plate is in direct contact with the L-shaped damping cushion blocks, abnormal sound caused by friction between the side wall of the cover plate and the well seat is reduced, and the problem of vibration of the manhole cover is further reduced. Drawings FIG. 1 is a schematic diagram of the overall structure of the present embodiment; FIG. 2 is a schematic top view of the whole structure of the present embodiment; FIG. 3 is a schematic view showing the structure of the split damping washer according to the present embodiment; FIG. 4 is a schematic top view of the shock absorbing gasket according to the present embodiment; FIG. 5 is a schematic view of a shock absorbing washer according to the present embodiment; FIG. 6 is an enlarged view of the L-shaped cushion block of the present embodiment after being moved out of the rectangular groove; FIG. 7 is an enlarged schematic view of the rectangular slot of the present embodiment after mounting the L-shaped cushion block; Fig. 8 is a schematic structural diagram of an L-shaped cushion block according to this embodiment. In the figure, 1 well seat, 2 annular grooves, 3 special-shaped notches, 4 damping washers, 5 rectangular grooves, 6L-shaped damping cushion blocks, 7 rectangular blocks and 8 convex blocks. Detailed Description For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is appare