CN203655068U

CN203655068U - Improved structure of anti-theft door

Info

Publication number: CN203655068U
Application number: CN201320707015.2U
Authority: CN
Inventors: 梁万继
Original assignee: ZENG HUIJUN
Current assignee: ZENG HUIJUN
Priority date: 2013-11-11
Filing date: 2013-11-11
Publication date: 2014-06-18
Anticipated expiration: 2023-11-11

Abstract

The utility model discloses an improved structure of an anti-theft door, which comprises a door leaf, a door frame and a door lock, wherein the lock body of the door lock is fixed inside the door leaf; a lock hole is formed in the door frame; the door leaf and the door frame can get close to each other; the outer side of the door leaf extends outwards, and a raised line is arranged on the extending section; a groove is formed in the inner wall of the door frame in an inwards recessed manner; when the door leaf and the door frame get close to each other, the raised line on the door leaf is clamped into the groove in the door frame, a main latch of the door lock mounted on the door leaf is inserted into a main lock hole in the door frame, and an auxiliary latch of the door lock penetrates a door-frame lock hole in the door frame and is inserted into a counter bore in the door leaf. According to the utility model, when the door leaf and the door frame get close to each other, the raised line is matched with the groove, the extending section on the door leaf shields a door seam between the door leaf and the door frame, and the latches cannot be seen, so that the difficulty for breaking the door by external force is increased, and the phenomenon that a lock is opened by using a card is prevented, therefore, the anti-theft door is better in mechanical strength, more excellent in pickproof performance, and better in sound insulation and heat preservation effects.

Description

The improvement structure of security door

Technical field

The utility model relates to a kind of security door, particularly relates to a kind of improvement structure of security door.

Background technology

As shown in Figure 1, the security door of commonly using comprises door leaf 1 ', doorframe 2 ' and door lock 3 '.The lock body of described door lock 3 ' is fixed in door leaf 1 ', offers lockhole 21 ' on doorframe 2 '.At closing time, door leaf 1 and doorframe 2 ' closing, the lockhole 21 ' that the locking bolt 31 ' of door lock 3 ' inserts on doorframe 2 '.This security door of commonly using, because the crack between a door and its frame by between door leaf 1 ' and doorframe 2 ' can be seen locking bolt 31 ', is easily pried open, and theftproof performance is poor.

Utility model content

The purpose of this utility model is to provide the improvement structure of the security door that a kind of mechanical strength is better, theftproof performance is better.

For achieving the above object, technical solution of the present utility model is:

The utility model is a kind of improvement structure of security door, and it comprises door leaf, doorframe and door lock; The lock body of described door lock is fixed in door leaf, offers lockhole on doorframe, door leaf and doorframe closing; The lateral extension of a described door leaf and raised line is set on this extension, forms a groove between this raised line and the lateral surface of door leaf; The inwall of the described doorframe groove that sets to the concave, forms a cell wall between this groove and doorframe lateral surface, offers the doorframe lockhole of a perforation on this cell wall, on the raised line of the door leaf relative with this doorframe lockhole, offers counterbore; In the time of door leaf and doorframe closing, the raised line on door leaf snaps in the groove on doorframe, and the master latch that is arranged on the door lock on door leaf inserts the master lock hole on doorframe, and the secondary latch bolt of door lock inserts the counterbore on door leaf through the doorframe lockhole on doorframe.

The secondary latch bolt of described door lock has two pairs, is separately positioned on the upper and lower of door leaf, on the raised line of the upper and lower of door leaf, offers respectively counterbore, offers respectively the doorframe lockhole of a perforation on the cell wall of the upper and lower of doorframe.

Described raised line is to bend by metal sheet the hollow forming, one side metal sheet through hole, and the not perforate of relative opposite side, forms the counterbore on door leaf.

Adopt after such scheme, because the utility model door leaf is provided with raised line, doorframe is provided with groove, in the time of door leaf and doorframe closing, raised line on door leaf snaps in the groove on doorframe, raised line and groove fit, the extension on door leaf has covered the crack between a door and its frame between door leaf and doorframe, cannot see locking bolt, improve the difficulty that external force is forced open the door, stop the possibility that card is unblanked, made that the utility model mechanical strength is better, theftproof performance is better, and sound insulation, better heat preservation.

Below in conjunction with the drawings and specific embodiments, the utility model is further described.

Brief description of the drawings

Fig. 1 is the locking states figure that commonly uses security door;

Fig. 2 is locking states figure of the present utility model;

Fig. 3 is the schematic diagram that the utility model door leaf raised line snaps in doorframe groove;

Fig. 4 is the utility model door leaf and doorframe schematic perspective view.

Detailed description of the invention

As shown in Fig. 2-Fig. 4, the utility model is a kind of improvement structure of security door, and it comprises door leaf 1, doorframe 2 and door lock 3.

The lock body of described door lock 3 is fixed in door leaf 1, on doorframe 2, offers lockhole, door leaf 1 and doorframe 2 closings.

The lateral extension of a described door leaf 1 and raised line 11 is set on this extension, forms a groove 12 between this raised line 11 and the lateral surface of door leaf 1.The inwall of described doorframe 2 groove 21 that sets to the concave, between this groove 21 and doorframe lateral surface, form a cell wall 22, on this cell wall 22, offer the doorframe lockhole 23 of a perforation, on the raised line 11 of the door leaf 1 relative with this doorframe lockhole 23, offer counterbore 13, because mostly adopting sheet metal, makes by door leaf 1, therefore the through hole of this counterbore 13 for offering on raised line 11 side plate materials.In the time of door leaf 1 and doorframe 2 closing, raised line 11 on door leaf 1 snaps in the groove 21 on doorframe 2, the master latch 31 that is arranged on the door lock 3 on door leaf 1 inserts the master lock hole 24 on doorframe 2, and the secondary latch bolt 32 of door lock 3 inserts the counterbore 13 on door leaf 1 through the doorframe lockhole 23 on doorframe 2.In the present embodiment, because door leaf 1 is to be formed by metal sheet bending, raised line 11 is to bend by metal sheet the hollow forming, one side metal sheet through hole, the not perforate of relative opposite side, form the counterbore 13 on door leaf 1, make the secondary latch bolt 32 of door lock 3 insert the through hole on raised line 11 1 side metal sheets on door leaf 1 through the doorframe lockhole 23 on doorframe 2.

In the present embodiment, the secondary latch bolt 32 of described door lock 3 has two pairs, be separately positioned on the upper and lower of door leaf 1, on the raised line 11 of the upper and lower of door leaf 1, offer respectively counterbore 13, on the cell wall 22 of the upper and lower of doorframe 2, offer respectively the doorframe lockhole 23 of a perforation.

Emphasis of the present utility model is just: the secondary latch bolt of door lock inserts the counterbore on door leaf through the doorframe lockhole on doorframe.

The above, it is only the utility model preferred embodiment, on door lock, the quantity of secondary latch bolt can be determined according to needs, therefore can not limit the scope that the utility model is implemented with this, the equivalence done according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1. an improvement structure for security door, it comprises door leaf, doorframe and door lock; The lock body of described door lock is fixed in door leaf, offers lockhole on doorframe, door leaf and doorframe closing; It is characterized in that: the lateral extension of a described door leaf and raised line is set on this extension, forms a groove between this raised line and the lateral surface of door leaf; The inwall of the described doorframe groove that sets to the concave, forms a cell wall between this groove and doorframe lateral surface, offers the doorframe lockhole of a perforation on this cell wall, on the raised line of the door leaf relative with this doorframe lockhole, offers counterbore; In the time of door leaf and doorframe closing, the raised line on door leaf snaps in the groove on doorframe, and the master latch that is arranged on the door lock on door leaf inserts the master lock hole on doorframe, and the secondary latch bolt of door lock inserts the counterbore on door leaf through the doorframe lockhole on doorframe.

2. the improvement structure of security door according to claim 1, it is characterized in that: the secondary latch bolt of described door lock has two pairs, be separately positioned on the upper and lower of door leaf, on the raised line of the upper and lower of door leaf, offer respectively counterbore, on the cell wall of the upper and lower of doorframe, offer respectively the doorframe lockhole of a perforation.

3. the improvement structure of security door according to claim 1, is characterized in that: described raised line is to bend by metal sheet the hollow forming, one side metal sheet through hole, and the not perforate of relative opposite side, forms the counterbore on door leaf.