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Safe latch for doors and windows

A door and window, security technology, applied in the direction of building fastening devices, buildings, building structures, etc., can solve problems such as disengagement locking, achieve the effect of preventing unlocking, improving safety and convenience, and easy operation of locking and unlocking

Inactive Publication Date: 2018-12-07
楼国华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bolts commonly used in households have the risk of breaking out of lock after shock and vibration. There are certain hidden dangers and need to be improved.

Method used

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  • Safe latch for doors and windows
  • Safe latch for doors and windows

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] like Figure 1-2 As shown, a safety door and window latch of the device of the present invention includes a locking seat 10, a latch seat 11 and a latch 12, and the right side end surface of the locking seat 10 is provided with a latch slot 13 with an opening facing right, and the left side of the latch slot 13 is The end wall is communicated with a first sliding cavity 14, and a first sliding block 15 is slidably installed in the first sliding cavity 14, and a first rack 16 is arranged on the upper end surface of the first sliding block 15. The upper end wall of the sliding chamber 16 is communicated with a first rotating chamber 21, and the front and rear inner walls of the first rotating chamber 21 are rotatably provided with a first rotating shaft 23 and a second rotating shaft 22, and the first rotating shaft 23 and the The second rotating shaft 22 is respectively fixed with a first gear 25 and a second gear 24 meshing with each other, the first gear 25 meshes with...

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PUM

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Abstract

The invention discloses a safe latch for doors and windows. The safe latch for doors and windows comprises a locking seat, a latch seat and a latch, wherein a latch groove with a rightward opening isformed in the end surface of the right side of the locking seat; a first sliding cavity is formed in the end wall of the left side of the latch groove in a communicating manner; a first sliding blockis arranged in the first sliding cavity in a sliding manner; a first rack is arranged on the upper end surface of the first sliding block; a first rotating cavity is formed in the upper end wall of the first sliding cavity in a communicating manner; a first rotating shaft and a second rotating shaft are rotatably arranged at the front inner wall and rear inner wall of the first rotating cavity; afirst gear and a second gear which are meshed with each other are respectively and fixedly arranged on the first rotating shaft and the second rotating shaft; the first gear is meshed with the first rack; a second sliding cavity which extends left and right is formed in the upper end wall of the first rotating cavity in a communicating manner; a second sliding block is arranged in the second sliding cavity in a sliding manner; and a second rack which is meshed with the second gear is arranged on the lower end surface of the second sliding block.

Description

technical field [0001] The invention relates to the field of household anti-theft, in particular to a safety door and window latch. Background technique [0002] The latch is a kind of anti-theft component that prevents doors and windows from being opened from the outside. It belongs to a tool installed behind the door. Anti-thief, anti-criminal effect. Eighty percent of the families in our country are equipped with such plugs. It is one of the most important components of modern doors and windows. The general latch appliance is of the metal type, and it has two types, one is a partially movable rod, and the other is a latch hole, which is a veritable "nose", made of wood or metal. The bolts commonly used in households have the risk of breaking out of lock after shock and vibration, which has certain hidden dangers and needs to be improved. Contents of the invention [0003] Aiming at the deficiencies of the above-mentioned technologies, the present invention pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05C1/12
CPCE05C1/12
Inventor 楼国华
Owner 楼国华