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Manhole cover opener

An opener and manhole cover technology, applied in the field of machinery, can solve the problems of difficulty in opening the manhole cover, damage to the manhole cover, difficulty in opening, etc., and achieve the effect of shortening the field construction period, increasing the work efficiency, and saving the physical strength of the surveyors.

Inactive Publication Date: 2015-09-02
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cast iron manhole cover bears a lot of weight. These two kinds of manhole covers are difficult to open when they are tightly occluded with the well circle. In particular, the composite material manhole cover is made of non-metallic materials, which is thick and easy to deform and expand. In the past, a sledgehammer was often used to open the manhole cover. When opening the manhole cover, use a sledgehammer to loosen the manhole cover, and then use a steel braze pry and a well hook to pull the manhole cover open. The opening time is too long, and the manhole cover is often damaged when smashed with a sledgehammer. It is more difficult to open and often needs to be smashed with a sledgehammer, which is very easy to smash the manhole cover and pose a safety hazard

Method used

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Embodiment Construction

[0013] Such as figure 1 , figure 2 As shown, the present invention is a specific embodiment, a manhole cover opener, including a base 1 , a support frame 2 and a beam 3 .

[0014] In the specific implementation, the crossbeam 3 is No. 6 channel steel welded into an I-beam style; one end thereof is cut into a T-shape.

[0015] The base 1 is provided with two vertical support frames 2, and there is a gap between the two support frames 2. The T-shaped end of the beam 3 is inserted between the two support frames 2, and is connected to the two support frames by bolts 4. 2 connection, the crossbeam 3 is perpendicular to the support frame 2, the crossbeam 3 can rotate with the bolt 4 as the fulcrum, the upper bottom surface of the crossbeam 3 is provided with a U-shaped handle 5, and the crossbeam is provided with a vertical connection hole at 4 / 5 of the connection end.

[0016] A claw hook 6 is arranged on the connecting hole, and the length of the support frame is three to four ...

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Abstract

The invention discloses a manhole cover opener comprising a base, supports and an H-shaped crossbeam welded by channel steel. One end of the crossbeam is cut to a T-shaped structure. The base is provided with two vertical supports which are arranged at an interval, the T-shaped end of the crossbeam is inserted between the two supports and connected with the two supports through bolts. The crossbeam is perpendicular to the supports and pivots the bolts, the upper bottom face of the crossbeam is provided with a U-shaped handle, and the crossbeam has a vertical connecting hole which is 2 / 3 to 4 / 5 of the length of the crossbeam away from the connecting end. The invention is easy to operate, mechanical work almost replaces manual work in the past, the measurers' labor can be saved, the work efficiency can be raised, and the construction period of the outside work can be greatly shortened.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a manhole cover opener. Background technique [0002] There are various specifications of inspection manhole covers, and the sizes and shapes of manhole covers vary greatly. According to the production materials, they are mainly divided into two types: one is cast iron manhole cover, and the other is composite material manhole cover. [0003] The cast iron manhole cover bears a lot of weight. These two kinds of manhole covers are difficult to open when they are tightly occluded with the well circle. In particular, the composite material manhole cover is made of non-metallic materials, which is thick and easy to deform and expand. In the past, a sledgehammer was often used to open the manhole cover. When opening the manhole cover, use a sledgehammer to loosen the manhole cover, and then use a steel braze pry and a well hook to pull the manhole cover open. The opening time is too long, and t...

Claims

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Application Information

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IPC IPC(8): E02D29/14B66F19/00
Inventor 殷臻莹朱祥
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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