Well lid adhesive tape with good shock absorption effect

By designing an arc-shaped rubber strip structure and a hydraulic expansion locking system, the positioning and insufficient buffering issues of the manhole cover rubber strip were solved, achieving stable connection and noise reduction of the manhole cover.

CN224514276UActive Publication Date: 2026-07-17XIAMEN JINTANG RUBBER PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN JINTANG RUBBER PLASTIC CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing rubber strips used in manhole covers have poor positioning, insufficient buffer space, are prone to cracking and falling off, and do not match the curvature of the manhole cover.

Method used

Design a manhole cover adhesive strip comprising an arc-shaped adhesive strip body, an outer strip, and an inner strip. A slot is provided for connecting the manhole cover reinforcing strip, and a hydraulic system of extrusion tube-expansion tube is used to increase the locking force. The arc-shaped structure is used to disperse vibration stress, and hydraulic expansion is used to lock and prevent it from falling off.

Benefits of technology

It achieves a stable connection between the manhole cover and the manhole ring, reduces collision noise, improves installation stability, ensures that the rubber strip is not accidentally triggered during transportation, and enhances positioning accuracy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224514276U_ABST
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Abstract

The utility model discloses a well lid rubber strip with good shock attenuation effect belongs to rubber product technical field, including the rubber strip body, be provided with the outside strip and the inside strip on the rubber strip body, be provided with the clamping groove between the outside strip and the inside strip on the rubber strip body and be located, and the clamping groove is used for connecting the muscle strip of well lid, and the rubber strip body, the outside strip and the inside strip are arc shape, the utility model discloses, through the arc structure dispersion vibration stress of setting, cooperate hydraulic expansion locking, reduce the well lid and the well ring collision noise, through the extrusion pipe - expansion pipe hydraulic system of setting again when installing increase locking force, avoid sealing failure, finally through the setting of the plug - prevent the mistake expansion when not using, ensure that rubber strip installation positioning precision.
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Claims

1. A manhole cover rubber strip with good shock absorption effect, comprising a rubber strip body (1), characterized in that: The rubber strip body (1) is provided with an outer strip (2) and an inner strip (3). A slot (4) is provided on the rubber strip body (1) between the outer strip (2) and the inner strip (3). The slot (4) is used to connect the reinforcing strip of the well cover. The rubber strip body (1), the outer strip (2) and the inner strip (3) are all arc-shaped.

2. The shock-absorbing rubber strip for a manhole cover according to claim 1, characterized in that: An extrusion tube (5) is provided on the outer strip (2), and an expansion tube (6) is provided on the side wall of the outer strip (2) near the slot (4).

3. The shock-absorbing rubber strip for a manhole cover according to claim 2, characterized in that: The outer strip (2) has a channel (7) inside, which is used to connect the extrusion tube (5) and the expansion tube (6).

4. The shock-absorbing rubber strip for a manhole cover according to claim 3, characterized in that: The extrusion tube (5) is equipped with a transmission fluid (8). When the extrusion tube (5) is compressed by pressure, the transmission fluid (8) is pushed through the channel (7) into the expansion tube (6), causing the expansion tube (6) to expand towards the slot (4).

5. The shock-absorbing rubber strip for a manhole cover according to claim 4, characterized in that: A plug (9) is provided on the outer strip (2) at the connection between the channel (7) and the expansion tube (6). The plug (9) is made of thin rubber.