CN2101085U

CN2101085U - Spring support for semi-antomatic opening and closing

Info

Publication number: CN2101085U
Application number: CN 91215644
Authority: CN
Inventors: 朱永兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-03
Filing date: 1991-07-03
Publication date: 1992-04-08

Abstract

The utility model relates to a door or window part for opening and closing a door via an elastic force. The utility model is composed of a fixed plate, a fulcrum, a supporting shaft, a spring support, etc. The fixed plate provided with the fulcrum is arranged on the door head above a door pivot, the supporting shaft is arranged at the middle part of an upper door edge, and two ends of the spring support are sheathed between the fulcrum and the supporting shaft. The utility model is characterized in that the fulcrum and the door pivot (a hinge) are parallel in different coaxial lines, and enough practical distance is kept between the fulcrum and the door pivot line above the surface of a movable door leaf. The utility model has the functions of automatically closing and opening the door and positioning the door under the action of the elastic force.

Description

Spring support for semi-antomatic opening and closing

The spring portal bracing that the utility model provides belongs to the door and window part, is a kind of device that utilizes the elastic force shutter door.

In the present existing like product,, have only a function of closing door automatically, and do not have the function of opening the door automatically as common mouse tail-gate catapult.If want smooth Kai Dingmen, can only bring inconvenience to life by means of fixed door methods such as door hook or foreign material supports.Another kind of door holder spare, as ground door folder, magnetic door holder etc., its remarkable shortcoming is inconvenience cleaning ground, and noise is big, and it is dangerous easily to injure pin.

The purpose of the utility model is to provide a kind of semi-automatic function of opening the door, close that possesses, and can decide door, novel door and window part simple in structure, safe and reliable, easy to use under the effect of elastic force automatically.

For achieving the above object, the utility model provides following technology: this spring portal bracing includes fixed head, fulcrum, spring support, support axle.Its fixed head that is equipped with fulcrum is installed on the lintel of door-hinge top, passes through fixed head O point with the door-hinge axis normal and is as the criterion; Support axle is installed in to the doorstep along the middle part, and spring support two ends are socketed between fulcrum and the support spool.During installation, the original structure of doorframe with door do not made any changes.As long as all kinds of non-swinging doors install this spring portal bracing additional, promptly have and can semi-automaticly open the door, close two kinds of functions of door for what arbitrarily select for use, and can be under the effect of elastic force, keep reliable fixed door.

Major technique of the present utility model is characterised in that: the non-coaxial line of fulcrum and door-hinge (hinge), and two axial lines is parallel; On the principal direction of the movable covering of the fan of door, the practicality distance of being separated by enough between fulcrum and the door-hinge axis, the length of this distance, hold concurrently and consider the size of elastic force, obtain suitable moment during with automatic opener and be as the criterion,, select to be set between 4～10 centimetres according to the type of door.

Operating principle of the present utility model is as shown in Figure 2: fulcrum C and the non-coaxial line of door-hinge O and the practical distance C O of being separated by and setting.When door 9 was in diverse location (establish door 9 with door 9 '), the distance between support axle D and the door-hinge O was thick-and-thin, i.e. DO=D ₁O; But the distance between support axle D and the fulcrum C is the change with the movable corner α of door, and respective change takes place, i.e. DC

D ₁C; With C is the center of circle, and DC is that radius is made arc

, DC=D ₀C, then D ₁C=D ₀C+D ₀D ₁At arbitrary triangle △ OCD ₁In, variables D ₀D ₁=

-D ₀C(analyzes with the cosine law), its variables D ₀D ₁It promptly is the flexible distance of reality of stage clip in the shutter door process.When door was in door 9 positions, spring was compressed (accumulation of energy), arm of force DO and elastic force F ₀Overlap, a support door angle β is zero, and the door 9 square effect that do not stress keeps partly freely opening stable.When door in a single day controlled left (or to the right) when leaving this settling position slightly, support axle D will be subjected to the effect of the moment L of energy-storaging spring, make door reposefully left (or to the right) go to the limit automatically---close door (or opening the door), and under the effect of elastic force, reliable and stable on this extreme position.

Above-mentioned moment L=Fsin β * DO, in the formula: F is an elastic force, and β is support door angle, and DO is the arm of force.

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the structure elevation.

Fig. 2 is structure and operating principle vertical view.

Fig. 3 is another kind of structural representation vertical view.

Structure of the present utility model as depicted in figs. 1 and 2.Its integral body is made up of fixed plate A, spring support B, fulcrum C and support axle D.Fixed plate A has mutually perpendicular two faces, and its horizontal plane is the covering of the fan of about 50 degree, is being the center of circle with O, and practical distance C O is an open arc groove 1 on the arc done of radius, a fixed pivot axis C in the groove; Its vertical plane is installed on the lintel 8 of door-hinge (hinge) 7 tops, and the O point that passes through covering of the fan with the door-hinge axis normal is as the criterion.Support axle D becomes plumbness to be installed in middle part, door 9 upper edges.B is by sleeve pipe 2 in the spring support, stage clip 3, and support bar 4, expansion link 5 compositions such as grade, its two ends are socketed in respectively on D axle and the C axle.Expansion link 5 interacts with stage clip 3 in sleeve pipe; It is spacing with the other end of stage clip to twist solid support bar 4 in sleeve pipe 2.

When mounted, consider that the different fulcrum C of the movable covering of the fan (90 ° or 180 °) of various door can fix at any place in the arc groove 1, be fixed on the principal direction (C of the movable covering of the fan of door usually ₁Or C ₂) on the position, also can arbitrarily set as required.Method is: unscrew nut 6, mobile as required fulcrum C twists solid thereafter.

Fig. 3 has showed another kind of structure of the present utility model.Spring support B is identical with Fig. 2 with support axle D.Fixed head partly changes by installing plate 10, the adjustment arm 11 that two ends are with holes, fulcrum C ' and adjustment spiral shell O ' composition.Installing plate 10 is installed on the lintel 8 of door-hinge top, passes through O ' with the door-hinge axis normal and is as the criterion.The end that two semicircle obvolvent faces 12 with holes of installing plate will be adjusted arm 11 clamps and twists admittedly with nut 13, unscrews nut 13, can change the direction of adjusting arm 11, and it is consistent with the activity principal direction of door to guarantee to adjust the arm sensing, twists admittedly thereafter.Fulcrum C ' is with support bar 4 and 11 sockets of adjustment arm.

The utility model is simple in structure, possesses the function of semi-automatic shutter door, and the effect of reliable fixed door under the elastic force effect is arranged.All kinds of door holder spares that bring inconvenience to life needn't be installed again, help forming conveniently, quiet, comfortable living and working environment.

Claims

1, a kind of spring portal bracing that comprises that fixed head, fulcrum, support axle, spring support are formed, its fixed head is installed on the lintel of door-hinge top, passes through fixed head O point with the door-hinge axis normal and is as the criterion; The support axle is installed in a middle part, upper edge; The spring support set is connected between fulcrum and the support axle, it is characterized in that the non-coaxial line of fulcrum and door-hinge and parallel, on the principal direction of the movable covering of the fan of door, and the practicality distance of being separated by enough between fulcrum and the door-hinge axis.

2, fixed head according to claim 1 is characterized in that with fixed head covering of the fan O point be the center of circle, is radius with practical distance, and the arc groove of about 50 degree of being left on covering of the fan, this groove are used for adjusting and a fixed pivot axis.

3, according to the another kind of structure of the described fixed head of claim 1, it is characterized in that: adjust spiral shell and can fix the direction of adjusting arm and setting the adjustment arm.

4, according to claim 1,2 described practical distances, it is characterized in that: this practicality distance determine with automatic opener the time obtain suitable moment and be as the criterion, according to the type of door, select to be set between 4～10 centimetres.