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Multi-section telescopic protective well shaft

A protective well and retractable technology, applied in the field of inspection wells, can solve the problems of easy rust, difficulty in opening the cover, personal casualties, etc., and achieve the effect of ensuring safety

Inactive Publication Date: 2020-02-18
沅江市欣鹏机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing manhole covers are made of concrete or cast iron. The weight of the concrete inspection manhole cover is 70 to 90 kg. It is difficult to open the manhole cover. Cast iron manhole covers make a lot of noise when vehicles are rolled over, especially at night, which deeply affects the residents facing the street. Moreover, cast iron manhole covers have poor toughness, are easy to rust, and are often stolen. Once it is stolen, it will cause vehicle accidents and personal injuries if it is not replenished in time

Method used

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  • Multi-section telescopic protective well shaft
  • Multi-section telescopic protective well shaft
  • Multi-section telescopic protective well shaft

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Embodiment Construction

[0013] Below in conjunction with all accompanying drawings the present invention will be further described, and preferred embodiment of the present invention is: see appended figure 1 to attach image 3 , the multi-stage retractable protective wellbore described in this embodiment includes an outer grain wellbore 1 and an inner grain wellbore 2 that are nested with each other, wherein the outer wall of the outer grain wellbore 1 is provided with an external thread 3, and the inner side of the inner grain wellbore 2 The wall is provided with an internal thread 4 matched with the external thread 3; The anti-falling net 5 is made of several vertical and horizontal hanging beams 6 . The anti-falling net 5 of the present embodiment is a cross-shaped mechanism composed of two hanging beams 6 . A well cover thread 7 is provided on the inner side wall of the top of the outer threaded shaft 1 . A manhole cover supporting ring 8 is provided on the inner side wall of the top of the ou...

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Abstract

The invention provides a multi-section telescopic protective well shaft. The well shaft comprises an outer-thread well shaft and an inner-thread well shaft which are in fit with each other in a sleeved mode, wherein external threads are arranged on the outer side wall of the outer-thread well shaft, internal threads matched with the external threads are arranged on the inner side wall of the inner-thread well shaft, and an anti-falling net is arranged at the bottom of the inner side of the outer-thread well shaft.

Description

technical field [0001] The invention relates to the field of inspection wells, in particular to a multi-stage retractable protective shaft. Background technique [0002] The inspection well is used in the residential area of ​​the building community, public building area, factory area, etc. The outer diameter of the buried plastic drainage pipe is not greater than 800mm, and the buried depth is not greater than 6m. It is generally located at the intersection, turning, pipe diameter or slope of the drainage pipe. A well-like structure made of integral injection molding of plastic or bricks for the convenience of regular inspection, cleaning and dredging, or inspection of downhole operations. Most of the existing manhole covers are made of concrete or cast iron. The weight of the concrete inspection manhole cover is 70 to 90 kg. It is difficult to open the manhole cover. Cast iron manhole covers make a lot of noise when vehicles are rolled over, especially at night, which dee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F5/02
CPCE03F5/02
Inventor 李运林
Owner 沅江市欣鹏机械有限公司