CN203559666U - Spring hinge for folding door - Google Patents

Abstract

The utility model relates to a spring hinge for a folding door which is used for an installing part of the door. The spring hinge comprises an upper arm cover, a lower arm cover, a middle segment arm center and a spring. The left side of a right hinge is provided with an upper segment hinged arm and a lower segment hinged arm in a projecting mode. The right side of a left hinge is provided with a middle segment hinged arm in a projecting mode. The upper arm cover is inserted into the upper segment hinged arm. The lower arm cover is inserted into the lower segment hinged arm. A middle segment arm is inserted into the middle segment hinged arm. The spring is buckled between the upper arm cover and the middle segment arm. The spring hinge for the folding door has following beneficial effects: sufficient reset force is obtained when the door is opened at any width; and the spring hinge is simple in structure and long in service lifetime.

Description

A kind of folded door spring hinge

Technical field

The utility model relates to a kind of folded door spring hinge, specifically a kind of tool door hinge springy.

Background technology

In the structure of door, door hinge is a movable vitals, common door hinge is to be communicated with two hinges by axle center, can be hinged and rotate, opposite house does not have reseting elasticity, and some businessmans have installed spring additional and make it have elastic force on two hinges, but this kind of spring tension shape is fixing, only when door reaches maximum, reset force just goes to maximum, and door is while just opening seldom a crack between a door and its frame, this kind of spring structure just do not have enough reset forces that door is resetted, if spring is strengthened, can cause so again the very effort of opening the door.

Summary of the invention

The purpose of this utility model is to provide a kind of folded door spring hinge, and it can make door when being opened to any width, have enough reset forces, and when opening the door, can not cause again the very phenomenon of effort, long service life rational in infrastructure.

Technical solution of the present utility model is at left hinge, on the basis of right hinge, be characterized in upper arm lid, underarm lid, the stage casing arm heart, spring, in the left side of right hinge, be protruding with epimere articulated jib and hypomere articulated jib, on the right side of left hinge, be protruding with stage casing articulated jib, on upper, middle and lower segment articulated jib, be respectively arranged with the through hole that size is identical, when the center of circle that makes its three's through hole between upper and lower section of articulated jib of stage casing articulated jib access is coaxial, form a logical stem;

Upper arm lid inserts in epimere articulated jib from top to bottom, and the stage casing arm heart is inserted in the articulated jib of stage casing along two slots of stage casing articulated jib through-hole wall by the muscle of its outside cylinder two sides projection, and underarm lid inserts in hypomere articulated jib from bottom to top; The bottom of upper arm lid extends in the articulated jib of stage casing and joins with Bei Xin top, stage casing, and the bottom of upper arm lid is an angular cut, and Bei Xin top, stage casing is angular cut corresponding thereto, the insertion end of underarm lid extends in the articulated jib of stage casing, and upper arm lid and underarm cover screw are fixed with epimere articulated jib and hypomere articulated jib respectively;

At upper arm lid with stage casing arm is intracardiac is respectively arranged with a button bar, spring be arranged on upper arm lid and stage casing arm intracardiac, and one end of spring is buckled on the button bar of upper arm in covering, the other end is buckled on the intracardiac button bar of stage casing arm.

Above-described stage casing articulated jib and upper and lower section of articulated jib joint are respectively arranged with a wear ring.

Operating principle of the present utility model is that the bottom that epimere articulated jib drives upper arm lid to rotate due to upper arm lid when door is opened is angular cut, now upper arm lid forces slot that stage casing arm is being in a good mood in the articulated jib of stage casing to downslide, be buckled in upper arm lid and carry out distortion and stretching with the effect that arm spring in the heart in stage casing is subject to torsion and stretching force, the width of opening when door more big spring is subject to torsion and stretching force is just larger, until covering with underarm the maximum contacting as door, the stage casing arm heart opens width, now the reset force of door is also maximum, when door is just opened a wicket seam, because upper arm covers with stage casing arm heart contact opening, be inclination, the pulling force reset of spring can force this otch to overlap completely, so also have enough reset forces when door is opened crack.

The utility model has the advantages that and can make door when being opened to any width, have enough reset forces, simple in structure, long service life.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is decomposition texture schematic diagram of the present utility model.

The specific embodiment

Shown in Fig. 1, Fig. 2, the utility model is at left hinge 1, on the basis of right hinge 2, be characterized in upper arm lid 4, underarm lid 5, the stage casing arm heart 8, spring 13, in the left side of right hinge 2, be protruding with epimere articulated jib 6 and hypomere articulated jib 7, on the right side of left hinge 1, be protruding with stage casing articulated jib 9, on upper, middle and lower segment articulated jib, be respectively arranged with the through hole that size is identical, when the center of circle that makes its three's through hole between upper and lower section of articulated jib 6,7 of stage casing articulated jib 9 accesses is coaxial, form a logical stem; Upper arm lid 4 inserts in epimere articulated jib 6 from top to bottom, and the stage casing arm heart 8 is inserted in stage casing articulated jib 9 along two slots of stage casing articulated jib 9 through-hole walls by the muscle of its outside cylinder two sides projection, and underarm lid 5 inserts in hypomere articulated jib 7 from bottom to top; The bottom of upper arm lid 4 extends in stage casing articulated jib 9 and joins with the top of the stage casing arm heart 8, and the bottom of upper arm lid 4 is an angular cut, and the top of the stage casing arm heart 8 is angular cuts corresponding thereto, the insertion end of underarm lid 5 extends in stage casing articulated jib 9, and upper arm lid 4 and underarm lid 5 use screws 12 are fixing with epimere articulated jib 6 and hypomere articulated jib 7 respectively; In upper arm lid 4 and the stage casing arm heart 8, be respectively arranged with button bar 11,10, spring 13 is arranged on upper arm lid 4 and stage casing arm intracardiac 8, and one end of spring is buckled on the button bar 11 in upper arm lid, the other end is buckled on the intracardiac button bar of stage casing arm 10, and described stage casing articulated jib 9 is respectively arranged with a wear ring 3 with upper and lower section of articulated jib 6,7 joints.

Claims (2)

1. a folded door spring hinge, it comprises left hinge, and right hinge is characterized in that having upper arm lid, underarm lid, the stage casing arm heart, spring, is protruding with epimere articulated jib and hypomere articulated jib in the left side of right hinge, on the right side of left hinge, be protruding with stage casing articulated jib, on upper, middle and lower segment articulated jib, be respectively arranged with the through hole that size is identical, when the center of circle that makes its three's through hole between upper and lower section of articulated jib of stage casing articulated jib access is coaxial, form a logical stem;

Upper arm lid inserts in epimere articulated jib from top to bottom, and the stage casing arm heart is inserted in the articulated jib of stage casing along two slots of stage casing articulated jib through-hole wall by the muscle of its outside cylinder two sides projection, and underarm lid inserts in hypomere articulated jib from bottom to top; The bottom of upper arm lid extends in the articulated jib of stage casing and joins with Bei Xin top, stage casing, and the bottom of upper arm lid is an angular cut, and Bei Xin top, stage casing is angular cut corresponding thereto, the insertion end of underarm lid extends in the articulated jib of stage casing, and upper arm lid and underarm cover screw are fixed with epimere articulated jib and hypomere articulated jib respectively;

At upper arm lid with stage casing arm is intracardiac is respectively arranged with a button bar, spring be arranged on upper arm lid and stage casing arm intracardiac, and one end of spring is buckled on the button bar of upper arm in covering, the other end is buckled on the intracardiac button bar of stage casing arm.

2. a kind of folded door spring hinge according to claim 1, is characterized in that described stage casing articulated jib and upper and lower section of articulated jib joint are respectively arranged with a wear ring.

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