CN2179440Y

CN2179440Y - Built-in hinge of doorframe

Info

Publication number: CN2179440Y
Application number: CN 93244276
Authority: CN
Inventors: 于亚民
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-17
Filing date: 1993-11-17
Publication date: 1994-10-12
Anticipated expiration: 2003-11-17

Abstract

The utility model discloses a built-in hinge of a doorframe, comprising a hinge plate 1, a hinge shaft 2, two hinge shaft sleeves 3, a hinge connecting seat, and steel balls 4. One end of the hinge plate is connected with the middle of the hinge shaft to one body, the two ends of the hinge shaft are respectively inserted into the two hinge shaft sleeves, and the steel balls are installed between the shaft sleeves and the hinge shaft; the other end of the hinge plate is inserted inside the inserting opening of the hinge seat, and the hinge plate is connected with the hinge seat by fastening screws 6; the shaft sleeves are welded inside the cavity of a door frame 7, and hinge connecting seat is welded on the side of a door leaf 8. The utility model has the advantages of strong rigidity, good anti-destroying performance, and long service life; so with the built-in hinge of a doorframe being used, the whole anti-theft performance of an anti-theft door is improved.

Description

Built-in hinge of doorframe

The hinge that is hidden in the doorframe mainly is used as the door leaf of metal anti-theft door and the connector of doorframe.

Existing hinge is generally three kinds, a kind of is outer hinge, it is very easily destroyed from the outside, another kind is interior hinge, and it destroys in the Yi Congmen again, and another is a blind hinge, it is contained between doorframe and the door leaf, though this kind preventing destructing performance is good, can not be used for the security door that door leaf and doorframe have outer faying surface, be more satisfactory theft-prevention structure and the security door of outer faying surface is arranged.

To be that design is a kind of can be used for door leaf and doorframe has the metal anti-theft door of outer faying surface to the purpose of this utility model, and be hidden in the interior hinge of doorframe.

The utility model includes hinge plate 1, hinge axis 2, hinge axle sleeve 3, it also includes steel ball 4, hinge Connection Block 5.One end of hinge plate 1 and the middle part of hinge axis 2 are connected as a single entity, and the two ends of hinge axis 2 are inserted in respectively in two hinge axle sleeves 3, between axle sleeve 3 and the axle 2 steel ball are housed.The other end of hinge plate 1 is inserted in the socket of hinge seat 5, with trip bolt 6 two is fastenedly connected then.Two hinge axle sleeves 3 are welded in the chamber of doorframe 7, and hinge Connection Block 5 is welded on the side of door leaf 8.

From still in door, all not destroying this hinge outdoors, so preventing destructing performance is fabulous.Because the door leaf of metal anti-theft door is heavy, so the hinge axle sleeve very easily weares and teares, be added with steel ball between axle sleeve of the present utility model and the axle, so can reduce the wearing and tearing of axle sleeve and axle, the life-span of hinge is long.Hinge all is that the rigidity of fixing is connected with doorframe and door leaf, so it is good to use the whole theftproof performance of security door of the present utility model.

Fig. 1 is the installation site and the cross-section cross-sectional view of hinge of door leaf and doorframe closure state lower jaw.

Fig. 2 is the main sectional view of hinge.

Fig. 3 is the A-A sectional drawing of Fig. 2 part.

Embodiment: present embodiment is made up of hinge plate 1, hinge axis 2, hinge axle sleeve 3, steel ball 4, hinge Connection Block 5, trip bolt 6, hinge plate is a L shaped plate, weldering is one in the middle of a L shaped end and the hinge axis 2, the L shaped other end is inserted in the socket of hinge Connection Block 5, and is fixedly connected with two with trip bolt 6.The two ends of hinge axis 2 are inserted in respectively in two hinge axle sleeves 3, and the two ends of hinge axis 2 all have a pit 9 respectively, also respectively have a pit 10 in the two ends of axle sleeve 3, and steel ball 4 is placed in the middle of axle and two pits of axle sleeve.Axle sleeve 3 is welded in the doorframe chamber 7, and the hinge Connection Block then is welded on the side of door leaf 8.

Claims

1, be hidden in the interior hinge of doorframe, it includes hinge plate (1), hinge axis (2), hinge axle sleeve (3), it is characterized in that it also includes hinge Connection Block (5), steel ball (4); The middle part of one end of hinge plate (1) and hinge axis (2) is connected as a single entity, the two ends of hinge axis (2) are inserted in respectively among two hinge axle sleeves (3), between axle sleeve (3) and the axle sleeve (2) steel ball (4) is housed, the other end of hinge plate (1) is inserted in the socket of hinge seat (5), use trip bolt (6) fixedly connected then with two, axle sleeve (3) is welded in the chamber of doorframe (7), and hinge Connection Block (5) is welded on the side of door leaf (8).

2, the hinge that is hidden in the doorframe according to claim 1, it is characterized in that hinge plate (1) is L shaped plate, the two ends of hinge axis (2) respectively has a pit (9), also respectively have a pit (10) in the two ends of axle sleeve (3), steel ball (4) is placed on pit (10) centre of pit (9) with the axle sleeve (3) of axle (2).