Waterproof well lid for urban cable tunnel

Abstract

The utility model discloses a waterproof well lid for urban cable tunnel, including waterproof well lid and inspection well foundation, waterproof well lid is composed of well lid, well seat, F type magnetic rubber sealing strip, inspection well foundation is composed of well curb plate and shaft, well seat and well curb plate are connected through fixed bolt, and the well lid is fixed in the shaft. And an F-shaped magnetic rubber sealing strip is arranged between the well cover and the well seat. And the structure is simple, the waterproof performance is good, maintenance is easy, and great significance is achieved for improving the urban space utilization efficiency and improving the urban road landscape effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of municipal engineering, in particular to a waterproof manhole cover for a city cable tunnel. Background Art

[0002] Urban cable tunnels are usually built within the scope of municipal roads. The personnel entrances and exits or inspection ports of cable tunnels should be higher than the ground and meet the flood control and waterlogging prevention requirements according to the standard of once in a hundred years. The personnel entrances and exits or inspection ports of cable tunnels within the scope of municipal roads can only be arranged within the green belt or sidewalk. Setting them in the green belt will affect the landscape effect of urban roads, and setting them on the sidewalk will affect pedestrian traffic. If the personnel entrances and exits or inspection ports of cable tunnels can be flush with the ground and meet the flood control and waterlogging prevention requirements of once in a hundred years, then the layout range of the personnel entrances and exits or inspection ports of cable tunnels can be expanded to reduce the impact on existing roads. With the growing development of my country's economy and the increasing scale of urban construction, more and more cable tunnels are laid on urban roads. There will inevitably be more and more entrances and exits or inspection openings for cable tunnels above the ground, which will affect the landscape and pedestrian traffic of existing municipal roads. If the entrances and exits or inspection openings for urban cable tunnels can meet the flood control and waterlogging prevention requirements of once in a hundred years while avoiding the impact on existing road facilities, it will become a major issue that needs to be fully considered in today's urban cable tunnel projects. Otherwise, it will reduce the landscape of urban roads and the usability of municipal facilities, or create greater safety hazards for flood control and waterlogging prevention.

[0003] Traditional manhole covers of urban cable tunnels usually do not have waterproof functions, and rely on the shaft to be a certain height above the ground to meet the requirements of flood control and waterlogging prevention, resulting in a waste of urban road space resources. A small number of manhole covers of urban cable tunnels with waterproof functions are either complex in structure, high in cost, and difficult to maintain, or simple in structure but poor in reliability, and have serious daily water leakage and cannot meet the requirements of flood control and waterlogging prevention.

[0004] To address this issue, on the premise of meeting the flood and waterlogging prevention requirements of urban cable tunnels, waterproof manhole covers with simple structure, good reliability, low cost and easy maintenance should be used to avoid the manhole being above the ground and occupying urban road space, thereby improving the efficiency of urban space utilization and the landscape effect of urban roads. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof manhole cover for urban cable tunnels, which has the advantages of simple structure, good reliability, low cost, easy maintenance, meeting the requirements of flood control and waterlogging prevention, not affecting the existing urban road landscape, not occupying the width of the sidewalk, etc., and solves the disadvantage that the personnel entrances and exits or inspection openings of traditional cable tunnels are higher than the ground. It has a wide range of applications and solves the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof manhole cover for urban cable tunnels, comprising a manhole cover and a manhole seat, characterized in that an F-type magnetic rubber sealing strip is arranged between the manhole cover and the manhole seat, the F-type magnetic rubber sealing strip is composed of a thin wing of the F-type magnetic rubber sealing strip and a card groove of the F-type magnetic rubber sealing strip, the card groove of the F-type magnetic rubber sealing strip is connected to the manhole seat, the thin wing of the F-type magnetic rubber sealing strip and the manhole cover can be adsorbed together by magnetic force, the manhole seat is connected to the manhole ring plate by fixing bolts, and the manhole ring plate is installed on the wellbore.

[0007] Preferably, the F-type magnetic rubber sealing strip is in an "F" shape, and is composed of an F-type magnetic rubber sealing strip slot and an F-type magnetic rubber sealing strip thin wing.

[0008] Preferably, the F-type magnetic rubber sealing strip is made of magnetic rubber material.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The utility model provides a basic sealing and waterproofing function by arranging an F-type magnetic rubber sealing strip between the manhole cover and the manhole seat, and compressing the F-type magnetic rubber sealing strip by the deadweight of the manhole cover. The thin wings of the F-type magnetic rubber sealing strip have sufficient flexibility, and can be adsorbed with the manhole cover by magnetic force to improve the waterproofing performance, and the waterproofing performance is more reliable. When the manhole cover is in water, the thin wings of the F-type magnetic rubber sealing strip will bear additional water pressure to make the thin wings of the F-type magnetic rubber sealing strip adsorbed more tightly with the manhole cover, and the waterproofing ability is further enhanced. The waterproof manhole cover used for urban cable tunnels has a simple structure, good waterproofing performance, and simple maintenance, and is of great significance for improving the efficiency of urban space utilization and improving the landscape effect of urban roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional schematic diagram of the utility model waterproof manhole cover;

[0012] Figure 2 This is a schematic diagram of the F-type magnetic rubber sealing strip of the utility model;

[0013] In the figure, 1. manhole cover, 2. manhole seat, 3. F-type magnetic rubber sealing strip, 4. fixing bolts, 5. manhole ring plate, 6. manhole, 7. thin wing of F-type magnetic rubber sealing strip, 8. card slot of F-type magnetic rubber sealing strip. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0016] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0017] The manhole cover 1, manhole seat 2, F-type magnetic rubber sealing strip 3, fixing bolts 4, manhole ring plate 5, shaft 6, thin wings 7 of the F-type magnetic rubber sealing strip, and card slot 8 of the F-type magnetic rubber sealing strip of the utility model are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0018] See also Figure 1-2A waterproof manhole cover for an urban cable tunnel comprises a manhole cover 1, a manhole seat 2, an F-type magnetic rubber sealing strip 3, a fixing bolt 4, a manhole ring plate 5, a manhole 6, a thin wing 7 of the F-type magnetic rubber sealing strip, and a card slot 8 of the F-type magnetic rubber sealing strip. The F-type magnetic rubber sealing strip 3 is arranged between the manhole cover 1 and the manhole seat 2 to play a major waterproofing role. The manhole cover 1 is made of ferromagnetic materials such as cast iron or steel. The F-type magnetic rubber sealing strip is made of magnetic rubber material into an "F" shape with a card slot and a thin wing structure. The card slot 8 of the F-type magnetic rubber sealing strip is connected to the manhole seat 2. The thin wing 7 of the F-type magnetic rubber sealing strip is adsorbed together with the manhole cover 1 by magnetic force to play an auxiliary waterproofing role. The water pressure acts on the lower surface of the thin wing 7 of the F-type magnetic rubber sealing strip so that the thin wing 7 of the F-type magnetic rubber sealing strip is more tightly adsorbed with the manhole cover 1, and the waterproof sealing effect is better. The manhole seat 2 is connected to the manhole ring plate 5 through the fixing bolt 4, and the manhole ring plate 5 is installed on the manhole 6.

[0019] In summary: the waterproof manhole cover for urban cable tunnels solves the following shortcomings through the combined use of the manhole cover 1, the manhole seat 2, the F-type magnetic rubber sealing strip 3, the fixing bolts 4, the manhole ring plate 5, the shaft 6, the thin wing 7 of the F-type magnetic rubber sealing strip, and the card slot 8 of the F-type magnetic rubber sealing strip: the manhole cover of the traditional urban cable tunnel has poor waterproof ability; the personnel entrance and exit or inspection port of the cable tunnel occupies additional urban road space, affects the urban landscape or occupies the width of the sidewalk, etc. The manhole cover has a simple structure, good waterproof performance, and simple maintenance. It is of great significance to improve the efficiency of urban space utilization and improve the urban road landscape effect, and has broad application prospects.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof manhole cover for an urban cable tunnel, comprising a manhole cover (1) and a manhole seat (2), characterized in that: An F-type magnetic rubber sealing strip (3) is arranged between the manhole cover (1) and the manhole seat (2). The F-type magnetic rubber sealing strip (3) is composed of a thin wing (7) of the F-type magnetic rubber sealing strip and a clamping groove (8) of the F-type magnetic rubber sealing strip. The clamping groove (8) of the F-type magnetic rubber sealing strip is connected to the manhole seat (2). The thin wing (7) of the F-type magnetic rubber sealing strip and the manhole cover (1) can be adsorbed together by magnetic force. The manhole seat (2) is connected to a manhole ring plate (5) by means of fixing bolts (4). The manhole ring plate (5) is installed on a manhole shaft (6).

2. A waterproof manhole cover for an urban cable tunnel according to claim 1, characterized in that: The F-type magnetic rubber sealing strip (3) is in an "F" shape and is composed of an F-type magnetic rubber sealing strip slot (8) and an F-type magnetic rubber sealing strip thin wing (7).

3. A waterproof manhole cover for an urban cable tunnel according to claim 2, characterized in that: The F-type magnetic rubber sealing strip (3) is made of magnetic rubber material.

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