Anti-warping well lid

Abstract

The utility model provides an anti-warping well lid which comprises a well seat and a lid body detachably connected to the upper end of the well seat, an outer supporting ring is arranged on the outer side of the well seat, an inner supporting ring matched with the lid body is arranged on the inner side of the well seat, and the outer diameter of the lid body is smaller than the inner diameter of the well seat and larger than the inner diameter of the inner supporting ring. The well seat is provided with a plurality of arc-shaped limiting pieces distributed in a circumferential mode above the inner supporting ring, the edge of the lower end of the cover body is outwards provided with a plurality of arc-shaped connecting pieces corresponding to the arc-shaped limiting pieces in a one-to-one mode, after installation, each arc-shaped connecting piece moves between the corresponding arc-shaped limiting piece and the inner supporting ring, and one side of each arc-shaped connecting piece is upwards provided with a blocking strip. A cover face located at the upper end of the arc-shaped connecting piece is arranged at the upper end of the cover body, and at least two cover lifting holes are formed in the cover face and the cover body in a penetrating mode. By improving an existing well lid structure, the installation stability and the shock resistance of the well lid are improved, and reliable operation under complex traffic conditions is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of manhole covers and relates to an anti-warping manhole cover. Background Art

[0002] In urban infrastructure construction, the inspection and maintenance of various underground pipelines is a crucial component in ensuring the smooth operation of cities. Manhole covers, as key components connecting surface and underground facilities, are widely found in public areas such as roads and sidewalks. Manhole covers must not only have sufficient load-bearing capacity to withstand the weight of pedestrians and vehicles, but also possess excellent anti-theft and anti-slip properties and be able to adapt to various harsh environments. Furthermore, to ensure the aesthetics of the city and pedestrian safety, the design of manhole covers must also consider their compatibility with the surrounding environment.

[0003] Traditional manhole covers are mostly made of cast iron or composite materials and have a relatively simple structure, typically consisting of a base and an openable cover. However, with the increasing volume of urban traffic, especially the frequent passage of heavy vehicles, higher requirements are being placed on the safety and durability of manhole covers. Due to the poor stability of the manhole covers when subjected to high-speed vehicle movement, they often become warped or shifted. This condition not only affects the normal use of the manhole covers but can also cause road surface roughness to deteriorate, increasing the risk of traffic accidents. Furthermore, abnormal movement of manhole covers can cause noise pollution, further impacting the quality of life of surrounding residents. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-warping manhole cover, which improves the existing manhole cover structure to enhance its installation stability and impact resistance, so as to ensure reliable operation under complex traffic conditions.

[0005] The cam is secured to the top of the lid and has a locking mechanism which allows the cam to lock onto the lid, the locking mechanism being secured to the lid by a locking cam which is secured to the lid by a locking mechanism.

[0006] By adopting the above technical solution, after the well seat is fixed with concrete, first insert two crowbars into the two cover-lifting holes to align the cover body with the well seat, and stagger the arc-shaped connecting piece and the arc-shaped limiting piece. Lower the cover body so that the cover body and the arc-shaped connecting piece are placed on the inner support ring, and then control the cover body to rotate so that the arc-shaped connecting piece rotates to the lower end of the arc-shaped limiting piece until the baffle contacts one side of the arc-shaped limiting piece, and the installation is completed. The cooperation between the arc-shaped connecting piece and the arc-shaped limiting piece can prevent the cover body from tilting up during use.

[0007] The utility model is further configured such that an elastic rubber buffer ring is provided at the upper end of the inner support ring.

[0008] The present invention is further configured such that, after installation, the upper end of the cover surface is flush with the upper end of the well seat.

[0009] The present invention is further configured such that the upper surface of the cover is provided with anti-slip grooves.

[0010] The present invention is further configured such that a plurality of cover bottom reinforcement ribs are provided at the lower end of the cover body.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] First, the present invention uses the cooperation of the arc-shaped connecting piece and the arc-shaped limiting piece to restrict the position of the cover at multiple points, thereby preventing the cover from tilting during use, improving its installation stability and impact resistance, and ensuring reliable operation under complex traffic conditions;

[0013] Secondly, the utility model uses an elastic rubber buffer ring to achieve a buffer connection between the cover and the well seat, which plays a buffering and shock-absorbing role between the cover and the well seat, further reducing the sound generated by the car rolling over the manhole cover;

[0014] Third, the present invention provides a cover surface on the surface of the cover body to cover the arc-shaped connecting piece and the arc-shaped limiting piece, so as to prevent dust from accumulating in the groove after the arc-shaped connecting piece and the arc-shaped limiting piece are connected, thereby avoiding affecting the efficiency of opening the cover body during sewer maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structural entity diagram of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 Used to show the bottom structure of the cover.

[0018] Among them, 1. Well seat; 2. Cover body; 3. Cover bottom reinforcement rib; 4. Outer support ring; 5. Inner support ring; 6. Elastic rubber buffer ring; 7. Arc-shaped limit plate; 8. Arc-shaped connecting plate; 9. Baffle; 10. Cover surface; 11. Cover opening. DETAILED DESCRIPTION

[0019] The following is a detailed description of the anti-warping manhole cover proposed by the present invention, combined with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. Identical or similar reference numerals in the drawings represent identical or similar components.

[0020] Example, see Figure 1-3 A kind of anti-warping manhole cover, including a manhole seat 1 and a cover body 2 detachably connected to the upper end of the manhole seat 1, a plurality of cover bottom reinforcement ribs 3 are provided at the lower end of the cover body 2, an outer side of the manhole seat 1 is provided with an outer support ring 4, an inner side of the manhole seat 1 is provided with an inner support ring 5 that cooperates with the cover body 2, and an upper end of the inner support ring 5 is provided with an elastic rubber buffer ring 6. The elastic rubber buffer ring 6 plays a buffering and shock-absorbing role between the cover body 2 and the manhole seat 1, further reducing the sound generated by the car rolling over the manhole cover. The outer diameter of the cover body 2 is smaller than the inner diameter of the well seat 1 and larger than the inner diameter of the inner support ring 5. The well seat 1 is provided with a plurality of arc-shaped limit pieces 7 distributed in a circumference above the inner support ring 5. The edge of the lower end of the cover body 2 is provided with a plurality of arc-shaped connecting pieces 8 corresponding to the arc-shaped limit pieces 7. After installation, each arc-shaped connecting piece 8 is displaced between the arc-shaped limit piece 7 and the inner support ring 5. The thickness of the arc-shaped connecting piece 8 is equal to the indirection between the arc-shaped connecting piece 8 and the elastic rubber buffer ring 6. The thickness of each arc-shaped connecting piece 8 is equal to the indirection between the arc-shaped connecting piece 8 and the elastic rubber buffer ring 6. A blocking bar 9 is set upward on each side, and the height of the blocking bar 9 is equal to the thickness of the arc-shaped limit piece 7. The upper end of the cover body 2 is provided with a cover surface 10 located at the upper end of the arc-shaped connecting piece 8. The upper surface of the cover surface 10 is provided with anti-slip grooves. After installation, the upper end of the cover surface 10 is flush with the upper end of the well seat 1. Two cover-lifting holes 11 are opened through the cover surface 10 and the cover body 2. Two crowbars are respectively inserted into the two cover-lifting holes 11 to facilitate the control of the rotation of the cover body 2. Therefore, at least two cover-lifting holes 11 are required.

[0021] Installation method: After fixing the well seat 1 with concrete, first insert two crowbars into the two cover-lifting holes 11, align the cover body 2 with the well seat 1, and stagger the arc-shaped connecting piece 8 with the arc-shaped limiting piece 7, lower the cover body 2, so that the cover body 2 and the arc-shaped connecting piece 8 are placed on the inner support ring 5, and then control the cover body 2 to rotate so that the arc-shaped connecting piece 8 is rotated to the lower end of the arc-shaped limiting piece 7 until the blocking bar 9 contacts one side of the arc-shaped limiting piece 7, and the installation is completed. Through the cooperation of the arc-shaped connecting piece 8 and the arc-shaped limiting piece 7, the cover body 2 is prevented from tilting up during use.

[0022] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0023] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An anti-warping manhole cover, comprising a manhole seat (1) and a cover body (2) detachably connected to the upper end of the manhole seat (1), wherein an outer support ring (4) is provided on the outer side of the manhole seat (1), characterized in that: The inner side of the well seat (1) is provided with an inner support ring (5) matched with the cover body (2); the outer diameter of the cover body (2) is smaller than the inner diameter of the well seat (1) and larger than the inner diameter of the inner support ring (5); the well seat (1) is provided with a plurality of arc-shaped limiting pieces (7) distributed in a circumferential manner above the inner support ring (5); the edge of the lower end of the cover body (2) is provided with a plurality of arc-shaped connecting pieces (8) corresponding to the arc-shaped limiting pieces (7) one by one; after installation, each arc-shaped connecting piece (8) is located between the arc-shaped limiting piece (7) and the inner support ring (5); a blocking bar (9) is provided on one side of each arc-shaped connecting piece (8); the upper end of the cover body (2) is provided with a cover surface (10) located at the upper end of the arc-shaped connecting piece (8); and at least two cover opening holes (11) are opened through the cover surface (10) and the cover body (2).

2. The anti-warping manhole cover according to claim 1, characterized in that: An elastic rubber buffer ring (6) is provided at the upper end of the inner support ring (5).

3. The anti-warping manhole cover according to any one of claims 1 or 2, characterized in that: After installation, the upper end of the cover surface (10) is flush with the upper end of the well seat (1).

4. The anti-warping manhole cover according to claim 1, characterized in that: The upper surface of the cover surface (10) is provided with anti-slip grooves.

5. The anti-warping manhole cover according to claim 1, characterized in that: The lower end of the cover body (2) is provided with a plurality of cover bottom reinforcement ribs (3).

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