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Lock well lid for prison

A manhole cover and prison technology, which is applied in building locks, water conservancy projects, artificial islands, etc., can solve problems affecting the development of locked manhole covers, and achieve the effect of improving service life and easy dredging

Inactive Publication Date: 2012-10-31
黄清新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inherent characteristics of these locks will affect the further development of locked manhole covers, so it is necessary to propose a new lock form to match the popularization and use of locked manhole covers

Method used

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  • Lock well lid for prison
  • Lock well lid for prison
  • Lock well lid for prison

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] Refer to the attached figure 1 A lockable manhole cover shown in a prison includes a well circle 14 and a manhole cover 11 engaged on the top of the well circle 14. In this scheme, since the locked manhole cover does not distinguish between types, the difference is only that some locked manhole covers only need One lock is enough, some lockable well covers need two locks, such as the well cover 11 is hinged to the well ring 14, so that the well cover 11 can be lifted with the hinge as the axis, in this structure, only the well cover end where the hinge is located The locking of the well cover can be satisfied by setting a lock on the opposite end side of the manhole cover. In the well cover without hinge connection, two locks need to be arranged symmetrically in the center.

[0040] exist figure 1 In the structure shown in the upper right part, because the well ring 14 is used to meet the installation of the well cover 11, its upper opening usually contains a stop for...

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PUM

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Abstract

The invention discloses a lock well lid for a prison, comprising a well ring and a well lid jointed with the upper opening of the well ring, as well as a lock on the well lid, wherein the lock is matched with a key; a locking hole with a vertical axis is formed on the well lid in a position through which the well lid is matched with the lock; the key penetrates through the corresponding locking hole up and down in the vertical direction; and a restraining structure is arranged on the key so that the key can be positioned in the locking hole. The lock well lid for the prison provided by the invention is high in safety factor and long in service life.

Description

technical field [0001] The invention relates to a locked manhole cover for a prison. Background technique [0002] At present, the locks on the locked well covers sold on the market are relatively simple, and the main purpose is to prevent theft of the well covers. Common lock structures for locking manhole covers mainly include push-in type, swing type and rotary type. Among them, the lock tongue of the push-in lock is a pick, and the key is an L-shaped metal structure; the lock tongue of the swing lock is a metal block with multiple deformation holes, and the key is a polygonal metal cone; the lock tongue of the rotary lock is a A metal block, a rotating shaft is inlaid on the metal block, the exposed end of the rotating shaft is a triangular body, and the key has an inner triangular hole and an outer circle structure. The structure of the above lock and key is relatively simple, the key is very easy to imitate, it is easy to unblank and open the well cover, the dead bol...

Claims

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Application Information

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IPC IPC(8): E02D29/14E05B65/00E05B35/00E05B19/00
Inventor 黄清新孟妍孙启宽黄宁
Owner 黄清新