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Door catch mechanism, security door and antitheft device

A safety door and door latch technology, which is used in safes, building structures, building locks, etc., can solve the problems of low firmness and the anti-theft performance needs to be improved, and achieve the effect of good safety.

Inactive Publication Date: 2015-09-02
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This single horizontal latch structure is too simple, the degree of firmness of the combination between the door body and the door frame is low, and the anti-theft performance needs to be improved

Method used

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  • Door catch mechanism, security door and antitheft device
  • Door catch mechanism, security door and antitheft device
  • Door catch mechanism, security door and antitheft device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0025] see Figure 1 to Figure 5 , in a preferred embodiment of the present invention, an anti-theft device includes a cabinet (not shown) and a security door 100 fixed to the cabinet, the cabinet is provided with a door frame ( Not shown in the figure), the safety door 100 is rotatably fixed on the door frame. The safety door 100 includes a door panel 10 and a door latch mechanism 30 fixed on the door panel 10 by a fixing member 50 .

[0026] The door panel 10 includes an outer door panel 11, an inner door panel 12 and a sandwich door panel 13 between the outer door panel 11 and the inner door panel 12, the outer door panel 11 and the inner door panel 12 are fixed together by welding, and the interlayer door panel 13 is formed by pouring anti-impact material between the outer door panel 11 and the inner door panel 12. In one embodiment, the anti-impact material is cement-based composite high strength material.

[0027] A combination lock 14 and a mechanical lock 15 are ins...

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PUM

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Abstract

A door catch mechanism comprises a main door catch fixed on a door plate, an auxiliary door catch arranged on the main door catch and a dial block, the dial block can be connected with a handle and can rotate along with the handle, the main door catch and the auxiliary door catch can stretch out and draw back at the same time to withstand a doorframe, the main door catch is provided with a first slide groove, a second slide groove, and an inclined groove for the auxiliary door catch to slide in, the dial block is provided with a first projection accommodated in the first slide groove and a second projection which can slide in the second slide groove, the dial block is connected with the handle through the first projection, the handle rotates and drives the second projection to rotate and slide in the second slide groove, rotation and slide of the second projection drives the main door catch to slide along the first slide groove, and the slide of the main door catch drives the auxiliary door catch to slide in the inclined groove. The invention further provides a security door provided with the above door catch mechanism and an antitheft device. The door catch mechanism can block the doorframe through the main door catch and the auxiliary door catch, and is high in safety.

Description

technical field [0001] The invention relates to a door bolt mechanism, a safety door and an anti-theft device. Background technique [0002] With the improvement of people's living standards, various security doors have been more and more applied in people's daily life, such as various safes, safes and household anti-theft doors. Existing safety doors, in terms of their structure, mainly include a door frame, a door body pivotally connected to the door frame, and a door latch structure arranged between the door body and the door frame. The traditional latch structure is generally a single horizontal latch structure, which includes a lock plate arranged on the back of the door body and a horizontal latch interlocked with the lock plate, and a latch hole matching the latch is opened on the door frame. In addition, mechanical locks and / or electronic locks are usually provided to lock the lock plate in the locked state to prevent the bolt from coming out of the bolt hole. This...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05G1/04E05G1/026E05B17/20E05G1/00
CPCE05G1/04E05B17/2092E05B65/0082E05G1/026
Inventor 罗扬洁潘明德林俊贤段志明
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD