CN2361814Y - Automatic homing door hinge - Google Patents

Abstract

The utility model relates to a door hinge. The utility model is mainly characterized in that the inner part of a top end of a barrel of a lower hinge holder is sheathed with a lower shaft sleeve which is provided with longitudinal tooth surfaces on the inner diameter surface, and a pivot shaft is inserted in the lower shaft sleeve. The lower peripheral surface of the pivot shaft is provided with outer tooth surfaces, the top surface of the pivot shaft is provided with an end cam surface, and the top end of the pivot shaft is fixedly provided with a central shaft. An upper shaft sleeve is sheathed in the bottom end of a barrel of an upper hinge holder, and the top end of the inner diameter of the upper shaft sleeve is provided with an annular inclined plane that corresponds to the end cam surface at the top end of the pivot shaft. The utility model, therefore, has the advantages of long service life and no noise.

Description

Automatic Homing Door Hinge

The utility model relates to a kind of door hinge.

At present, usually be contained in the hinge on the door, only articulate use as doorframe and door-plate, must it be pushed back by manpower and close pushing door-plate open, yet, door-plate in some occasion must must cut out by self-return after pushing away the pass, as: office, the bath compartment of public places such as hospital etc., and had the hinge of self-return in the past, tie up to installing one torque spring in the hinge, can borrow the elastic force of torque spring, make door-plate be able to push open the back self-return close the door, still since torque spring in use for some time, can produce elastic fatigue, in case torque spring loses elastic force, door-plate promptly can't self-return, and this kind hinge of borrowing the torque spring return to close the door, have noise and produce opening the door or close the door because of getting rusty in use for some time, but, must reduce noise in some occasion as far as possible, so, this kind borrows torque spring to reach the hinge of return, and desirable part is to the greatest extent arranged not in the use.

Again according to general use habit, rest room in public places if door is not closed fully and is semi-closed state, is then represented not in use, otherwise, door is closed then fully and is expressed possibility in use, yet the known hinge of spring self-return of borrowing only can make door-plate close fully, can not make door-plate be back to semi-closed state, therefore, known structure still has and does not attain desirable part and remain to be transformed in use.

In view of this, the purpose of this utility model provides a kind of Automatic Homing Door Hinge, and the upper hinge seat deflection that it can be after opening the door makes and borrows door gravity to slide back and the return of closing the door voluntarily.

The purpose of this utility model is achieved in that a kind of Automatic Homing Door Hinge is made up of relative upper and lower hinge seat, and upper and lower hinge seat ties up to the side of a cylindrical shell and extends a stator respectively and borrow two stators to be separately fixed on door pillar and the door-plate, it is characterized in that: suit one Lower shaft sleeve in the cylinder top of following hinge seat, has the vertical flank of tooth on the aperture surface of this Lower shaft sleeve, plug-in mounting one pivot in Lower shaft sleeve again, and this pivot below periphery is provided with the outer flank of tooth, and the pivot top mask has an end cam face and sets firmly a central axis on the pivot top again; Suit one Upper shaft sleeve in the cylindrical shell bottom of upper hinge seat, the internal diameter end face of this Upper shaft sleeve are provided with a ring-type inclined plane with respect to the end cam face on pivot top, and aforementioned pivot is set in the Upper shaft sleeve and the central axis on this pivot also passes the Upper shaft sleeve top.

Owing to adopt such scheme: the return of closing the door automatically is by gravity own, and does not need other torsion spring, so long service life, noiselessness again.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 the utility model first embodiment stereogram.

Fig. 2 the utility model first embodiment exploded view.

A kind of movement state diagram of Fig. 3 the utility model first embodiment.

The another kind of movement state diagram of Fig. 4 the utility model first embodiment.

Fig. 5 the utility model second embodiment stereogram.

Fig. 6 the utility model second embodiment exploded view.

Among the figure: 1 upper hinge seat, 11 cylindrical shells, 12 stators, 13 locking screws, 2 times hinge seats, 21 cylindrical shells, 22 stators, 23 locking screws, 3 Lower shaft sleeves, 31 are indulged the flank of tooth, 4 pivots, the 41 outer flank of tooth, 42 end cam faces, 5 central axiss, 6 Upper shaft sleeves, 61 ring-type inclined planes.

At first, as Fig. 1, shown in 2, first embodiment system is by on two, hinge seat 2 was formed under relative down hinge seat 1 reached, and on, following hinge seat 1,2 tie up to a cylindrical shell 11,21 side extends a stator 12,22, and hinge seat 2 was borrowed stator 12 under upper hinge 1 reached, 22 install it respectively and to be fixed on door pillar and the door-plate, its feature is suit one Lower shaft sleeve 3 in cylindrical shell 21 tops of following hinge seat 2, it is to borrow a locking screw 13 to be screwed in and fixed by a cylindrical shell 21 sides, has the vertical flank of tooth 31 on the aperture surface of this Lower shaft sleeve 3, plug-in mounting one pivot 4 in Lower shaft sleeve 3, and these pivot 4 below peripheries are provided with the outer flank of tooth 41, make pivot 4 borrow the outer flank of tooth 41 positioning and plug-in mountings in Lower shaft sleeve 3, and has an end cam face 42 at pivot 4 end faces, and wear on pivot 4 tops and to fix a central axis 5, and suit one Upper shaft sleeve 6 in cylindrical shell 11 bottoms of upper hinge seat 1, system borrows another locking screw 23 to be screwed in and fixed by cylindrical shell 11 sides, the internal diameter end face of Upper shaft sleeve 6 is provided with a ring-type inclined plane 61 with respect to the end cam face 42 on pivot 4 tops, and aforesaid pivot 4 is set in the Upper shaft sleeve 6, and the central axis on the pivot 45 passes Upper shaft sleeve 6 tops, as Fig. 3, shown in 4, make back upper hinge seat 1 deflection of opening the door, and the end cam face 42 of borrowing pivot 4 tops leans against the ring-type inclined plane 61 of aforesaid Upper shaft sleeve 6 inner top surfaces, makes upper hinge seat 1 rely on power for support and the return of closing the door voluntarily

Upper hinge seat 1 and down hinge seat 2 borrow stator 12,22 and respectively installing be fixed on door pillar and the door-plate and the cylindrical shell 11 of upper hinge seat 1 and down the cylindrical shell 21 of hinge seat 2 install Lower shaft sleeve 3 and Upper shaft sleeve 6 respectively, install pivot 4 betwixt, and these pivot 4 tops have end cam face 42, and these Upper shaft sleeve 6 inner top surfaces have ring-type inclined plane 61 again; Therefore, when closing the door state, the peak of the end cam face 41 at pivot 4 tops is positioned at the summit on the ring-type inclined plane 61 of Upper shaft sleeve 6, and when door opening state, 1 deflection of upper hinge seat, make the minimum point on ring-type inclined plane 61 of Upper shaft sleeve 6 be positioned on the peak of end cam face 42 of pivot 4, therefore, when decontroling door-plate, because the ring-type inclined plane 61 of Upper shaft sleeve 6 is to lean against on the end cam face 42 at pivot 4 tops, and the inclined plane principle of the cam 42 of using as a pretext and gravity relation make door-plate rely on power for support and the playback of closing the door automatically.

Moreover owing to have the vertical flank of tooth 31 on the aperture surface of Lower shaft sleeve 3, and the periphery of pivot 4 belows is provided with the outer flank of tooth 41, pivot 4 is engaged on by means of the outer flank of tooth of below on the vertical flank of tooth 31 of Lower shaft sleeve 3 and locatees; If will adjust inclined to one side angle of release degree at closing time, then pivot 4 directly can be extracted out and deflection one angle after, insert again and trap in 3, and then recover upper hinge seat 1, so promptly adjusted inclined to one side angle of release degree at closing time arbitrarily, as: 0 °, 5 °, 10 °, 15 ° ... Deng.

Be equipped with central axis 5 on the pivot 4 again, and the inner top surface of Upper shaft sleeve 6 is passed in these central axis 5 upper ends, and borrow central axis 5 to support upper hinge seat 1, make upper hinge seat 1 can not produce inclination, and then make it at switch or at closing time, door-plate can not produce the situation of inclination, and more stable user mode is arranged.

Second embodiment, shown in Fig. 5,6, the stator 12,22 of cylindrical shell 11,21 sides of hinge seat 2 was with the limit upper and lower settings under upper hinge seat 1 reached, and became the hinge seat of flag form.

Claims (1)

1, a kind of Automatic Homing Door Hinge is made up of relative upper and lower hinge seat, and upper and lower hinge seat ties up to the side of a cylindrical shell and extends a stator respectively and borrow two stators to be separately fixed on door pillar and the door-plate, it is characterized in that: suit one Lower shaft sleeve in the cylinder top of following hinge seat, has the vertical flank of tooth on the aperture surface of this Lower shaft sleeve, plug-in mounting one pivot in Lower shaft sleeve again, and this pivot below periphery is provided with the outer flank of tooth, and the pivot top mask has an end cam face and sets firmly a central axis on the pivot top again; Suit one Upper shaft sleeve in the cylindrical shell bottom of upper hinge seat, the internal diameter end face of this Upper shaft sleeve are provided with a ring-type inclined plane with respect to the end cam face on pivot top, and aforementioned pivot is set in the Upper shaft sleeve and the central axis on this pivot also passes the Upper shaft sleeve top.