Water leakage prevention sealing strip for cable pit cover plate

Abstract

The invention discloses a water leakage prevention sealing strip for a cable pit cover plate. The sealing strip mainly comprises a sealing strip base (1) with a T-shaped longitudinal section, and is characterized in that a plurality of layers of symmetrical or asymmetrical waterproof tooth edges (3) are arranged on the two sides of an insertion trunk (2) of the T-shaped sealing strip base (1). The sealing strip has the advantages that 1, a flame-retardant modified fluorosilicone material is elastic, and the waterproof tooth edges (3) are bent into V-shaped security strips, and are tightly attached to the wall of seams (7), so that water leakage and the inflow of foreign matters are prevented in multiple levels, a good sealing effect is achieved, the interior of a pit is kept clean, safety is ensured, and the pit can be inspected and accepted once; 2, the sealing strip is convenient to mount and replace, so that simplicity and convenience in power inspection, maintenance and first-aid repair are ensured; 3, the flame-retardant modified fluorosilicone material is nontoxic, fireproof and flame retardant, and the sealing strip is convenient to construct and reusable, and is an environment-friendly product; and 4, color can be used as a safety sign for the sealing strip, and a good effect is achieved.

Description

technical field [0001] The invention belongs to an anti-leakage water sealing strip for cable well cover plates of national grids, power plants and power transmission and transformation projects. Background technique [0002] The gaps in the outdoor cable well covers and the gaps in the cable trench covers of the State Grid, power plants, communication line facilities, transmission and transformation substations (substations), etc. cannot be completely sealed. These cracks in the cable well covers have serious water leakage and inflow of sundries in rainy days, and water accumulates in the wells. Stacked in the pit, resulting in the generation of methane and often causing major accidents such as fires; the current usual treatment methods are as follows: ①Use asphalt to block, the waterproof effect is not very satisfactory, especially in summer when the high temperature weather will melt into the well; ②Use cement construction to block , not only the construction is difficult...

AI Technical Summary

Problems solved by technology

[0002] The gaps in the outdoor cable well covers and the gaps in the cable trench covers of the State Grid, power plants, communication line facilities, transmission and transformation substations (substations), etc. cannot be completely sealed. These cracks in the cable well covers have serious water leakage and inflow of sundries in rainy days, and water accumulates in the wells. Stacked in the pit, resulting in the generation of methane and often causing major accidents such as fires; the current usual treatment methods are as follows: ①Use asphalt to block, the waterproof effect is not very satisfactory, especially in summer when the high temperature weather will melt into the well; ②Use cement construction to block , not only the construction is difficult, the cable well cover plate is difficult to open, and it is very unsightly, but also because the cover plate must be re-blocked for construction every time the cover plate is opened during daily maintenance and inspection, which is very wasteful and produces a lot of garbage pollution; The plugging king, plugging agent, etc. are used for sealing, and the outdoor cable well cover is severely solidified by the plugging king, plugging agent, etc., and the cable well cover cannot be opened in a short time during maintenance and emergency repairs. Every time it is opened, the cover will be damaged. It is not an ideal fireproof and waterproof product, nor can it guarantee the safety of cables, nor can it achieve the ideal effect of fireproof and leakproof, nor can it guarantee the safety of power and communication facilities.

In the prior art, the patent of "A New Rubber Sealing Strip" of Chinese Patent No. 95216047.1 is a kind of sealing for cement concrete pavement joints, mainly composed of a trunk (1) and a sealing part, characterized in that: the sealing part There are fishbone-like upward flashes (2) arranged symmetrically and asymmetrically on the trunk (1) and both sides. Although the rubber sealing strip solves the problems of easy replacement and installation, the sealing strip is only suitable for cement Concrete pavement joints are not suitable for sealing the gaps in the outdoor cable well covers and cable trench cover plates of the State Grid, power plants, communication line facilities, and transmission and transformation substations (stations).

In particular, the rubber sealing strip also requires that the fishbone-shaped flash must be upward, and the angle (3) between the corresponding two flashes (2) is required to be 30°≤α<180°, so that the rubber sealing strip can be easily embedded in the cement Concrete pavement joints, not only the structure of the sealing strip is complex and inconvenient to process, but it is also not suitable for leak-proof sealing of the gaps in cable well covers and cable trench covers

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