CN2201464Y

CN2201464Y - Height adjustable door shaft

Info

Publication number: CN2201464Y
Application number: CN 93212885
Authority: CN
Inventors: 赵熙文
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-24
Filing date: 1993-05-24
Publication date: 1995-06-21
Anticipated expiration: 2003-05-24

Abstract

The utility model relates to a height adjustable door shaft which is particularly suitable for door shafts which are not exposed outside. The utility model prevents door shafts from being destroyed and being artificially destroyed by thieves for invasion. The utility model is characterized in that the bearing casing of a door and a doorframe are made into circular arc contact surfaces which coincide with each other. Shaft holes are formed in the upper and the lower parts of the bearing casing; the lower parts of the shaft holes are inserted into the lateral faces of a gear rack and the bearing casing, and are meshed with a lift adjusting gear shaft through which a horizontal line penetrates to form a height adjustable and safe door shaft.

Description

Height adjustable door shaft

The utility model is a kind of door-hinge of adjustable height, and it is at various buildings, as high buildings and large mansions, office and the access door installed of the access of dwelling house, high-quality door that door, the door-hinge after it is installed can be regulated its height is thrown and is counted.

In the past, access door mainly utilizes hinge to install or utilize P type pivotal mounting.But the both exposes the outside, and when being easy to be destroyed and exist by the stranger long-time uses, open and close door generation noise, doorframe are big with a vertical contact gap, and the gap is bigger during the switch door, can't noiseproof, and shortcoming such as windproof.

The utility model is for solving the new product that above-mentioned shortcoming is released, and its simple structure is made easily.

The purpose of this utility model, for making a kind of door-hinge after access door is installed, its door-hinge is not exposed, and can prevent to destroy door-hinge, prevents the intrusion that the artificial destruction owing to access door causes.

Door-hinge of the present utility model, its technical scheme is characterised in that: door bearing shell and doorframe are made the figure arc contact surface that matches, at an inner up and down axis hole that forms at shell, the side of tooth bar and supporting shell is inserted in the axis hole bottom, the lift adjustment gear shaft that passes through with horizon is meshed, and its lift adjustment gear shaft is that the front is passed and formed adjustable door-hinge in the door of supporting shell.

The door-hinge that utilizes the utility model to make, the above lower shaft of access door is a central axis, its open and close structure, the contact surface system of door is defined by a radius, and its doorframe and door almost do not have the gap, can make access door switch sleekly.

Be described in further detail below in conjunction with the door of accompanying drawing adjustable height of the present utility model, wherein:

Accompanying drawing 1 is a major part exploded view of the present utility model.

Accompanying drawing 2 is the horizontal end view drawings of operating state of the present utility model.

Accompanying drawing 3 is the vertical end view drawings of operating state of the present utility model.

Accompanying drawing 4 is that the A-A of Fig. 3 enlarges end view drawing.

Accompanying drawing 5 is horizontal end view drawings of the utility model one specific embodiment.

See also shown in the accompanying

drawing

1,2, the door-hinge of the adjustable height of the utility model, it comprises that door bearing shell (1) forms circular arc with vertical doorframe (1 ') and contacts (2) (2 ').

The outside up and down of supporting shell (1) forms axis hole, and (2 ") are inserted tooth bar (3) (4) in the axis hole.The lift adjustment gear shaft (5) (6) and the tooth bar (4) that pass through with level from the side of supporting shell (1) are meshed, upper axis (3) is inserted upper level by the axis hole of frame (1 ") (2 ") lining, utilize in other examples of the utility model structure application, lift adjustment gear shaft (5) (6) is meshed by making tooth bar (4) and gear shaft (5) (6) in the front of supporting shell (1).

Symbol among the figure (10) is a body, and (11) are lower bearings.

The following describes effect of the present utility model and effect, see also shown in the accompanying drawing 3; Under supporting shell (1) and door body (10) bonding state, the axis hole (7) of top and the bottom axle (3) upper level doorframe and bearing (11) center are in level, then, rotate lift adjustment gear shaft (5) (6) with screwdriver, gear shaft and tooth bar (4) engagement is integral, upper axis (3) rises, lower shaft (3) descends, each is inserted into axis hole, and (2 ") and bearing (11) lining, door just installs.

This design, than what use in the past, it is much better that axle is fixed on door, and the height up and down and the gap of door are regulated arbitrarily with lift adjustment tooth axle (5) (6).

Lift adjustment gear shaft of the present utility model (5) (6) passes through in the side of supporting shell (1), vertical doorframe (1 ') was close to lift adjustment gear shaft (5) (6) outer end when door was closing, so the state that door is closing can not destroy door-hinge or dismounting door down, can also prevent stolen danger.In addition, see also shown in Figure 5, in specific embodiment, lift adjustment gear shaft (5) (6) is passed through in the front of supporting shell (1), lift adjustment gear (5) (6) outer end is exposed by indoor the inside under the state that door is closing, so can regulate easily indoor, and supporting shell (1) and vertical doorframe (1 ') formation arc contact surface, open and close Men Shineng reaches no gap.

The utility model has door-hinge not to be exposed for this reason, outward appearance U.S., prevents outside artificial destruction, and has the advantage of easy installation.

Claims

1, a kind of door-hinge of adjustable height, it is characterized in that: door bearing shell (1) and doorframe (11) are made the arc contact surface (2) (2 ') that matches and formed axis hole supporting shell (1) inner up and down (2 "); tooth bar (3) (4) is inserted in the axis hole bottom; become with the side of supporting shell (1); the lift adjustment gear shaft (5) (6) that passes through with horizon is meshed, formation can be regulated door-hinge just.

2, door-hinge according to claim 1 is characterized in that: lift adjustment gear shaft (5) (6) is to pass from the front, door the inside of supporting shell (1) and form adjustable door-hinge.