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Labor-saving well lid opening and closing device

A technology of opening and closing device and manhole cover, which is applied in the directions of transportation and packaging, load hanging components, cranes, etc., can solve the problems of laborious and unsafe opening and closing of manhole covers, and achieves the effect of high work efficiency and convenient carrying.

Inactive Publication Date: 2018-04-20
王淑慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention mainly solves the problem of laborious and unsafe opening and closing of the manhole cover in the prior art, and provides a safe and labor-saving manhole cover opening and closing device

Method used

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  • Labor-saving well lid opening and closing device
  • Labor-saving well lid opening and closing device
  • Labor-saving well lid opening and closing device

Examples

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Effect test

Embodiment Construction

[0015] Such as figure 1 As shown, a labor-saving manhole cover opening and closing device includes a telescopic lever 2, a herringbone bracket 3 and a sling 1, and is characterized in that the sling 3 is movably connected with the telescopic lever 2, and the sling 1 is two The two ropes are composed of ropes, the upper ends of the two ropes are combined and fixed at one end of the telescopic lever 2, and the lower ends of the two ropes are respectively provided with suspension hooks 5. When in use, the suspension hooks 5 are inserted into the hoisting holes 4-1 of the well cover 4, Apply force to the other end of telescopic lever 2.

[0016] Such as figure 2 and image 3 As shown, the hook 5 is a sleeve-type inverted hook, including a sleeve 5-4, a boom 5-1, and an elastic cross bar 5-2. The upper end of the sleeve 5-4 is provided with a closing port 5-6 , the inner diameter of the closure is slightly larger than the outer diameter of the suspender 5-1, a long hole 5-3 is ...

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Abstract

The invention discloses a labor-saving well lid opening and closing device, belongs to the technical field of well lid opening and closing tools, and mainly solves the problem of potential safety hazards in opening and closing of traditional well lids. The labor-saving well lid opening and closing device comprises an extension lever, a herringbone bracket and a lifting rope, and is characterized in that the herringbone bracket is movably connected with the extension lever; the lifting rope consists of two ropes; the upper ends of the two ropes are merged to fixedly connect to one end of the extension lever; lifting hooks are respectively arranged at the lower ends of the two ropes; the lifting hooks are sleeve type reverse hooks, and comprise sleeves provided with seals at the upper ends,lifting rods provided with clamping tables and elastic transverse rods hinged to the lower parts of the lifting rods; the inner diameters of the seals are slightly larger than the outer diameters of the lifting rods; long holes are formed in the middle lower parts of the outer walls of the sleeves; the lower ends of the sleeves are opened; the lifting rods are inserted in the sleeves; the clampingtables are positioned in the seals at the upper ends of the sleeves; the elastic transverse rods penetrate outside from the long holes; and springs are arranged in hinge devices between the elastic transverse rods and the lifting rods.

Description

technical field [0001] The invention belongs to the technical field of manhole cover opening and closing tools, and in particular relates to a labor-saving manhole cover opening and closing device. Background technique [0002] When opening and closing the traditional manhole cover, it is laborious and labor-intensive, and there are potential safety hazards. When the rope hook is used to open and close, it is easy to slip and cause damage. Contents of the invention [0003] The invention mainly solves the problem of laborious and unsafe opening and closing of the well cover in the prior art, and provides a safe and labor-saving well cover opening and closing device. [0004] The technical scheme that the present invention takes for solving the problems of the technologies described above is: [0005] A labor-saving manhole cover opening and closing device, including a telescopic lever, a herringbone bracket and a sling, which is characterized in that the sling is movably ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C25/00B66C1/12
CPCB66C25/00B66C1/12
Inventor 王淑慧赵琳常建芳陈建波
Owner 王淑慧
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