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Tamper-resistant bolt structure

An anti-pry door latch and latch head technology, which is applied in building structures, building locks, buildings, etc., can solve problems such as complex structures, and achieve the effects of good anti-prying effect and simple and practical implementation.

Inactive Publication Date: 2012-06-06
王勇军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they have a common shortcoming. There is a matching structure between the door bolt and the swivel guide sleeve to realize the purpose of the door bolt rotating around its axis, so the structure is relatively complicated.

Method used

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  • Tamper-resistant bolt structure
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  • Tamper-resistant bolt structure

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Such as Figure 1-10 Shown is a preferred embodiment of the present invention.

[0028] A tamper-resistant door latch structure, including a main bolt head 2 that is arranged on the back of the door panel 1 and can slide laterally relative to the door panel 1. As a complete latch structure, of course, there must be a drive for the main bolt head 2 to slide on the back of the door panel. The driving structure generally includes a latch plate 9 connected to the rear of the main latch head 2, and a shift fork 11 driven by a lock 10 or a handle. connected, so that the deflection of the shift fork 11 can drive the latch plate 9 and the main latch head 2 to slide laterally relative to the door panel 1 .

[0029] The door latch structure also includes a secondary bolt head 3 and a connecting rod 4. The main bolt head 2 has a vertical hole 21...

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PUM

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Abstract

The invention relates to a tamper-resistant bolt structure comprising a main bolt head (2) and is characterized by comprising a secondary bolt head (3) and a connecting rod (4), wherein the main bolt head is internally provided with a vertical hole (21) arranged in a penetrating mode and a lateral hole (22) penetrating through the rear end surface of a main bolt head (1); the secondary bolt head is positioned in the vertical hole and can slide up and down correspondingly to the vertical hole so as to extend out or retract into the main bolt head; the front end of the connecting rod passes through the horizontal hole and then is connected with the secondary bolt head; the middle of the connecting rod is connected in the horizontal hole by a hinge pin in a rotating mode so as to ensure thatthe connecting rod swings along the hinge pin to drive the secondary bolt head to extend out or retract into the main bolt head; and the outside of the main bolt head is provided with a driving structure driving the connecting rod to swing. The structure has different realization principles with the existing inverse hooking bolt structure, the connecting rod in the structure does not need to rotate along the axis thereof, and the invention uses the lever principle to pry the secondary bolt head to extend out or retract into the main bolt head and has easy and practical realization mode.

Description

technical field [0001] The invention relates to an anti-prying door bolt structure, which can be applied to various safes, anti-theft cabinets, storage boxes, filing cabinets, weapon cabinets, safes and anti-theft doors for households. Background technique [0002] The structure of the existing safe cabinet door mainly includes a door frame, a door body pivotally connected to the door frame, and a bolt structure arranged between the door body and the door frame. The interlocking door bolt is provided with a bolt hole corresponding to the side door bolt on the door frame. The door bolt is cylindrical, and the bolt hole is a cylindrical hole matched with the door bolt. There are some defects in this kind of safe cabinet door. If the criminals pry the door frame instead of the lock, since there is no obstructing structure between the bolt and the bolt hole, as long as the criminals only need to pry one side of the door frame slightly, the door will be closed. The bolt on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05B15/10E05B63/14
Inventor 王勇军
Owner 王勇军