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Well lid and design method thereof

A manhole cover and cover plate technology, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve problems such as difficulty in opening and closing of manhole cover plates, damage to personnel and items, and achieve the effect of simple structure, convenient inspection and maintenance

Pending Publication Date: 2019-03-19
CHANGSHA XINGUANG STEEL FIBER CONCRETE STRUCTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the manhole cover is heavy and difficult to open and close. After opening, the cover may drop and close instantly when people enter and exit, causing damage to personnel and objects.

Method used

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  • Well lid and design method thereof

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Effect test

Embodiment Construction

[0015] Such as figure 1 As shown, the present invention includes a base 1 and a cover plate 2; at least two hinge ears 3 are arranged on one side of the cover plate 2; the hinge ears 3 are set on the rotation shaft 5 of the base 1; A torsion spring 4 ; one torsion leg of the torsion spring 4 is fixedly connected to the base 1 , and the other torsion leg is fixedly connected to the cover plate 2 .

[0016] The rotating shaft is installed on the base, and the hinge lug installed on the cover plate with bolts is installed on the rotating shaft to form a rotating pair. The torsion spring is worn on the rotating shaft, one of the torsion legs is lapped on the base, and the other torsion leg is lapped on the cover plate.

[0017] The spring constant is expressed in k, and when the spring is twisted, the load (kgf / mm) is increased by 1° torsion angle.

[0018] E=rigidity modulus of the wire: piano steel wire E=21000, stainless steel wire E=19400, phosphor bronze wire E=11200, brass...

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Abstract

The invention discloses a well lid and a design method thereof. The well lid comprises a base and a lid plate, at least two hinge lugs are arranged on one side of the base, the two adjacent hinge lugsare connected through a rotating shaft, and torsion springs are installed on the rotating shaft. According to the well lid, the structure is simple, and the lid plate can be guaranteed to be suspended at any position in an allowable opening angle range, so that the well lid can be conveniently repaired and maintained.

Description

technical field [0001] The invention relates to a well cover, in particular to a well cover and a design method thereof. Background technique [0002] In the prior art, the manhole cover is heavy and difficult to open and close. After opening, the cover may fall off and close instantly when personnel enter and exit, causing damage to personnel and objects. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a manhole cover and its design method to ensure that the cover plate can hover at any position within the range of openable angles. [0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a well cover, including a base and a cover plate; at least two hinge ears are arranged on one side of the cover plate; the hinge ears are set on the rotation axis of the base A torsion spring is installed on the rotating shaft; one torsion leg of the torsion spring is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14
CPCE02D29/1418E02D29/1463
Inventor 陈宏博苏可王新良
Owner CHANGSHA XINGUANG STEEL FIBER CONCRETE STRUCTURE
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