A quick-install rubber strip

By using an integrated main sealing strip and a multi-layer tearable gasket structure, the problem of sealing failure caused by the non-adjustable height of traditional manhole cover sealing strips is solved, achieving convenient installation and efficient sealing, and improving the service life and sealing performance of manhole covers.

CN224451845UActive Publication Date: 2026-07-03XIAMEN JINTANG RUBBER PLASTIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN JINTANG RUBBER PLASTIC CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional manhole cover sealing strips have a fixed structure and cannot be adjusted in height, making them unsuitable for different manhole cover thicknesses, which leads to sealing failure. Furthermore, they are prone to stress during the installation of curved manhole covers, making assembly laborious and prone to falling off. Existing improvement solutions have failed to effectively address the long-term sealing requirements under complex working conditions.

Method used

It adopts an integrated main sealing strip and a multi-layer tearable gasket structure. The number of gasket layers can be adjusted by hand tearing to achieve flexible adaptation of the sealing height. The main sealing strip and gasket have an arc-shaped side design to naturally fit the curvature of the manhole cover. The connecting rubber strip ensures the structural integrity, and the side gasket is added to fill the gap between the manhole cover and the manhole seat.

Benefits of technology

It achieves flexible adaptation of sealing height, eliminates bending stress, ensures convenient and smooth assembly, improves circumferential sealing, extends service life, and reduces the frequency and cost of municipal facility maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224451845U_ABST
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Abstract

This utility model discloses a quick-installing rubber strip, belonging to the field of sealing technology. Addressing the problems of loose fit and laborious installation in existing technologies, this utility model innovatively adopts an integrated main sealing strip and a multi-layer tearable gasket structure. The number of gasket layers can be freely adjusted by hand tearing, achieving flexible adaptation of the sealing height and completely solving the sealing failure problem caused by differences in manhole cover thickness. The arc-shaped side design naturally matches the curvature of the manhole cover, significantly eliminating bending stress, making the assembly process convenient and smooth, and eliminating the risk of sealing strip deformation and detachment. The connecting rubber strip ensures structural integrity after the gasket is torn off, maintaining overall sealing stability. Addressing the pain point of leakage at the edge of the manhole cover, the optimized solution of adding side gaskets can extend and fill the gap between the manhole cover and the seat under pressure, significantly improving circumferential sealing performance.
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Description

Technical Field

[0001] This utility model belongs to the field of sealing technology, specifically relating to a quick-install rubber strip. Background Technology

[0002] As a core infrastructure for ensuring public safety, the inspection wells of modern urban drainage systems play a crucial role in pipeline maintenance and flood prevention.

[0003] As the sealing component of inspection wells, manhole covers are subjected to harsh conditions such as rainwater erosion and vehicle crushing for a long time. Their sealing performance is directly related to road safety and groundwater protection.

[0004] Traditional manhole cover seals primarily rely on a single-layer rubber strip. Due to its fixed structure and non-adjustable height, it can only accommodate manhole covers of specific thicknesses. When there are construction errors on the manhole cover installation surface or when replacing manhole covers of different specifications, the sealing strip cannot compensate for the height difference, leading to seal failure. More seriously, straight sealing strips generate internal stress when installed on curved manhole covers, making assembly difficult and prone to detachment due to stress rebound, causing leakage and erosion of the surrounding roadbed. Existing improvement solutions attempt to adjust the height using split gaskets, but the components are easily separated, installation is cumbersome, and the bending stress problem remains unresolved, making it difficult to meet the long-term sealing requirements under complex working conditions.

[0005] This invention attempts to solve or at least alleviate the aforementioned problems by providing new or otherwise improved sealing technologies. Utility Model Content

[0006] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a quick-install rubber strip, which has the advantages of quick installation and good sealing performance.

[0007] To achieve the above objectives, this utility model provides a quick-install rubber strip, characterized in that it includes: a main sealing strip, wherein multiple gaskets are provided at the bottom of the main sealing strip, and the multiple gaskets are connected below the main sealing strip by connecting rubber strips; both the main sealing strip and the gaskets have arc-shaped sides.

[0008] As an improvement of this utility model, the main sealing strip, gasket, and connecting strip are integrally formed.

[0009] As an improvement of this utility model, the main sealing strip and the gasket have rectangular cross-sectional shapes.

[0010] As an improvement of this utility model, the cross-sectional shape of the main sealing strip and the gasket is fan-shaped.

[0011] As an improvement of this utility model, the cross-sectional shape of the main sealing strip and the gasket is trapezoidal.

[0012] As an improvement of this utility model, a side gasket is provided on the top edge of the main sealing strip.

[0013] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0014] This innovative design employs an integrated main sealing strip and a multi-layer tearable gasket structure. The number of gasket layers can be freely adjusted by hand tearing, achieving flexible and adaptable sealing height and completely solving the sealing failure problem caused by differences in manhole cover thickness. The arc-shaped side design naturally matches the curvature of the manhole cover, significantly eliminating bending stress, making assembly convenient and smooth, and eliminating the risk of sealing strip deformation and detachment. Connecting rubber strips ensure structural integrity after the gaskets are removed, maintaining overall sealing stability. Addressing the pain point of leakage at the manhole cover edges, the optimized solution of adding side gaskets can extend and fill the gap between the manhole cover and the seat under pressure, significantly improving circumferential sealing. The entire structure has no metal components, exhibiting excellent corrosion resistance and significantly extended service life, effectively reducing the frequency and cost of municipal facility maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a quick-install rubber strip according to the present invention;

[0016] Figure 2 This is a schematic diagram of the first embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the second embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the third embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the fourth embodiment of the present utility model.

[0020] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0021] 1. Main sealing strip; 2. Arc-shaped side; 3. Gasket; 4. Connecting rubber strip; 5. Rectangular sealing strip;

[0022] 6. Rectangular gasket; 7. Fan-shaped sealing strip; 8. Arc-shaped gasket; 9. Trapezoidal sealing strip; 10. Trapezoidal gasket;

[0023] Side gasket 11. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0026] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0027] like Figure 1 As shown, a quick-install rubber strip is characterized by comprising: a main sealing strip 1, wherein a multi-layer gasket 3 is provided at the bottom of the main sealing strip 1, and the multi-layer gasket 3 is connected to the bottom of the main sealing strip 1 by a connecting rubber strip 4; both the main sealing strip 1 and the gasket 3 have arc-shaped sides 2.

[0028] In a preferred embodiment of this invention, the main sealing strip 1, gasket 3, and connecting strip 4 are integrally molded. This integral molding design prevents the gasket 3 from easily detaching. Example

[0029] like Figure 2 As shown, the feature of this embodiment is that the main sealing strip 1 and the gasket 3 have rectangular cross sections, that is, the bottom of the rectangular sealing strip 5 is provided with multiple layers of rectangular gaskets 6, and both the rectangular sealing strip 5 and the layers of rectangular gaskets 6 have arc-shaped sides 2.

[0030] Suitable for regular rectangular grooves, the multi-layer rectangular gaskets 6 evenly distribute vertical pressure, improving the reliability of the bottom seal. Example

[0031] like Figure 3 As shown, the difference between this embodiment and embodiment 1 is that the cross-sectional shape of the main sealing strip 1 and the gasket 3 is fan-shaped, that is, the bottom of the fan-shaped sealing strip 7 is provided with multiple layers of arc-shaped gaskets 8, and both the fan-shaped sealing strip 7 and the arc-shaped gaskets 8 have arc-shaped sides 2.

[0032] Specifically designed for circular manhole cover grooves, the fan-shaped structure matches the curvature to prevent the sealing strip from twisting, and the arc-shaped side 2 fits tightly against the groove wall when under pressure. Example

[0033] like Figure 4 As shown, the difference between this embodiment and embodiment 2 is that the main sealing strip 1 and the gasket 3 have trapezoidal cross sections, that is, the bottom of the trapezoidal sealing strip 9 is provided with multiple trapezoidal gaskets 10, and both the trapezoidal sealing strip 9 and the trapezoidal gasket 10 have arc-shaped sides 2.

[0034] Suitable for V-shaped or trapezoidal grooves, the beveled surface provides guidance and automatically centers during installation; multi-layer trapezoidal gaskets compensate for the depth of the groove bottom. Example

[0035] like Figure 5 As shown, the feature of this embodiment is that a side gasket 11 is added to the top edge of the main sealing strip 1.

[0036] To address the issue of manhole cover edges easily lifting up, the side gasket 11 extends towards the side edge of the manhole cover under pressure, eliminating edge gaps and significantly improving circumferential sealing.

[0037] Working principle: The main sealing strip 1 covers the bottom groove of the manhole cover, and its bottom is elastically connected to multiple layers of gaskets 3 through the connecting rubber strip 4. During installation, the number of gaskets 3 layers can be adjusted by tearing by hand to adapt to different groove depths. The arc-shaped side 2 of the main sealing strip 1 and the gaskets 3 expand outward after being compressed, tightly fitting the side wall of the manhole seat, completely eliminating bending stress and assembly gaps. The added side gaskets 11 further extend and fill the edge gaps of the manhole cover, realizing multi-level adaptive sealing.

[0038] In summary, this utility model innovatively adopts an integrated main sealing strip and a multi-layer tearable gasket structure. The number of gasket layers can be freely adjusted by hand tearing, achieving flexible adaptation of the sealing height and completely solving the sealing failure problem caused by differences in manhole cover thickness. The arc-shaped side design naturally matches the curvature of the manhole cover, significantly eliminating bending stress, making the assembly process convenient and smooth, and eliminating the risk of sealing strip deformation and detachment. The connecting rubber strip ensures structural integrity after the gasket is torn off, maintaining overall sealing stability. Addressing the pain point of leakage at the edge of the manhole cover, the optimized solution of adding side gaskets can extend and fill the gap between the manhole cover and the seat under pressure, significantly improving circumferential sealing performance. The entire structure has no metal components, excellent corrosion resistance, and a significantly extended service life, effectively reducing the frequency and cost of municipal facility maintenance.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-mounting rubber strip, characterized by include: The main sealing strip (1) has a multi-layer gasket (3) at its bottom, and the multi-layer gasket (3) is connected to the bottom of the main sealing strip (1) by a connecting strip (4); Both the main sealing strip (1) and the gasket (3) have arc-shaped sides (2).

2. The fast-mounting rubber strip according to claim 1, characterized in that The main sealing strip (1), gasket (3), and connecting strip (4) are integrally formed.

3. A fast-fit rubber strip according to claim 2, characterised in that The main sealing strip (1) and the gasket (3) have rectangular cross-sectional shapes.

4. The fast-mounting rubber strip according to claim 2, characterized in that The main sealing strip (1) and the gasket (3) have a fan-shaped cross-section.

5. The quick-mounting rubber strip according to claim 2, wherein The main sealing strip (1) and the gasket (3) have trapezoidal cross-sectional shapes.

6. The quick-mounting rubber strip according to claim 1, wherein The top edge of the main sealing strip (1) is provided with a side gasket (11).