CN2490279Y

CN2490279Y - Door hinge capable of automatic open and close

Info

Publication number: CN2490279Y
Application number: CN 01244905
Authority: CN
Inventors: 张维
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-17
Filing date: 2001-07-17
Publication date: 2002-05-08
Anticipated expiration: 2011-07-17

Abstract

The utility model discloses a door gemel which can be closed automatically, comprising two loose leaves and a hinging shaft. The two loose leaves are respectively a concave loose leaf and a convex loose leaf; the hinging shaft is fixed in the upper and the lower shaft sleeves of the concave loose leaf; the middle part of the hinging shaft penetrates into the shaft sleeve at the middle part of the convex loose leaf; the lower edge of the shaft sleeve of the concave loose leaf and the lower edge of the shaft sleeve of the convex loose leaf are same helicoids; a gap is arranged between the concave hole of the concave loose leaf and the convex block of the convex loose leaf. The gemel door improves the prior art, characterized in uneasy dismounting, good safe performance, as well as can make the door keep open state at a given position.

Description

The door hinge that can close down automatically

The utility model relates to a kind of door hinge.

Patent Office of the People's Republic of China discloses application number on November 23rd, 1988 and has been " 88202763 ", publication number is " CN88202763 ", name is called the utility model patent of " gravitional force self-return hinge ", it " is made up of two pages of plates and a mandrel; the metope of two pages of plate mill type shaft sleeves is a helicoid; two pages of plates are when doing swing relatively around the mandrel axis; also make relative axial float; it is simple in structure; low cost of manufacture, easy to use and durable in use, tool is suitable for the sky in the house door with self-return and function easy to loading and unloading, window, the cover plate of machine and other need self-return and often folding, loading and unloading in the mechanism of plumb line swing type folding ".Above-mentioned patent has following two major defects:

1. the two halves of hinge can not be fixed together, they only are nested at the axle place each other, can freely separate, thereby caused the hidden danger on the safety, so this hinge still can find its world that is suitable on movable furniture, but on the higher gate of safety requirements, the user but can feel beyond affordability because of it is for convenience detach.

2. not having and allow door be held open the function of not closing certain the time, allow door close automatically, is a kind of needs that people often have, can some the time allow door remain on opening, also be the requirement that people often have.

The purpose of this utility model is: a kind of door hinge that can close down automatically is provided, and this door hinge improves prior art, have not quick detachable, security performance is good, make door be held open the characteristics of state at ad-hoc location.

The technical solution of the utility model is: a kind of door hinge that can close down automatically, comprise two loose-leaves and a jointed shaft, described two loose-leaves are divided into spill loose-leaf and convex loose-leaf, jointed shaft is fixed in two axle sleeves up and down of spill loose-leaf, the middle part of jointed shaft penetrates in the axle sleeve at convex loose-leaf middle part, the bottom of the bottom of the axle sleeve of spill loose-leaf and the axle sleeve of convex loose-leaf is identical helicoid, and is gapped between the projection of the depression of spill loose-leaf and convex loose-leaf.

One of technical scheme that the utility model is detailed is: a kind of door hinge that can close down automatically, comprise two loose-leaves and a jointed shaft, described two loose-leaves are divided into spill loose-leaf and convex loose-leaf, jointed shaft is fixed in two axle sleeves up and down of spill loose-leaf, the middle part of jointed shaft penetrates in the axle sleeve at convex loose-leaf middle part, the bottom of the bottom of the axle sleeve of spill loose-leaf and the axle sleeve of convex loose-leaf is identical helicoid, and is gapped between the projection of the depression of spill loose-leaf and convex loose-leaf; The lower hinge of described spill loose-leaf has a horizontal limit hinge, it comprises the spacing axle sleeve of spill loose-leaf lower end, the spacing loose-leaf hinged with spacing axle sleeve, and spacing jointed shaft is fixed on the spacing loose-leaf, limit shaft puts and is provided with gap and can makes door be held open state spacing loose-leaf location.

Two of the technical scheme that the utility model is detailed is: a kind of door hinge that can close down automatically, comprise two loose-leaves and a jointed shaft, described two loose-leaves are divided into spill loose-leaf and convex loose-leaf, jointed shaft is fixed in two axle sleeves up and down of spill loose-leaf, the middle part of jointed shaft penetrates in the axle sleeve at convex loose-leaf middle part, the bottom of the bottom of the axle sleeve of spill loose-leaf and the axle sleeve of convex loose-leaf is identical helicoid, and is gapped between the projection of the depression of spill loose-leaf and convex loose-leaf; The helicoid of described spill loose-leaf is provided with concave station, and the helicoid of convex loose-leaf is provided with corresponding boss, and when boss entered in the concave station, hinge can be held open state with the door location.

The utility model has the advantages that:

1. because two loose-leaves of the present utility model are respectively spill and convex, jointed shaft can be fixed on two axle sleeves up and down of spill loose-leaf, and the convex loose-leaf is enclosed within the middle part of jointed shaft, makes hinge just not quick detachable after installation, and security performance is good.

2. the utility model has two kinds of form of structure can make door be held open state in certain location, a kind of is that limit hinge is set, another kind of concavo-convex step only need be closed limit hinge at closing time or pushed hard, and door just can slowly be closed under the effect of own wt.

The utility model will be further described below in conjunction with drawings and Examples:

Fig. 1 is the structural representation of embodiment one;

Fig. 2 is the structural representation of embodiment two;

Wherein: 1 spill loose-leaf; 2 convex loose-leaves; 3 jointed shafts; 4 axle sleeves; 5 axle sleeves; 6 helicoids; 7 gaps; 8 limit hinges; 9 spacing axle sleeves; 10 spacing loose-leaves; 11 spacing jointed shafts; 12 gap; 13 concave stations; 14 boss.

Embodiment one: as shown in Figure 1, a kind of door hinge that can close down automatically, comprise two loose-leaves and a jointed shaft, described two loose-leaves are divided into spill loose-leaf [1] and convex loose-leaf [2], jointed shaft [3] is fixed in two axle sleeves [4] up and down of spill loose-leaf [1], the middle part of jointed shaft [3] penetrates in the axle sleeve [5] at convex loose-leaf [2] middle part, the bottom of the bottom of the axle sleeve [4] of spill loose-leaf [1] and the axle sleeve [5] of convex loose-leaf [2] is identical helicoid [6], between the projection of the depression of spill loose-leaf [1] and convex loose-leaf [2] gapped [7]; The lower hinge of described spill loose-leaf [1] has a horizontal limit hinge [8], it comprises the spacing axle sleeve [9] of spill loose-leaf [1] lower end, the spacing loose-leaf [10] hinged with spacing axle sleeve [9], spacing jointed shaft [11] is fixed on the spacing loose-leaf [10], spacing axle sleeve [8] is provided with gap [12] can make door be held open state spacing loose-leaf [10] location.

Embodiment two: as shown in Figure 2, a kind of door hinge that can close down automatically, comprise two loose-leaves and a jointed shaft, described two loose-leaves are divided into spill loose-leaf [1] and convex loose-leaf [2], jointed shaft [3] is fixed in two axle sleeves [4] up and down of spill loose-leaf [1], the middle part of jointed shaft [3] penetrates in the axle sleeve [5] at convex loose-leaf [2] middle part, the bottom of the bottom of the axle sleeve [4] of spill loose-leaf [1] and the axle sleeve [5] of convex loose-leaf [2] is identical helicoid [6], between the projection of the depression of spill loose-leaf [1] and convex loose-leaf [2] gapped [7]; The helicoid [6] of described spill loose-leaf [1] is provided with concave station [13], and the helicoid [6] of convex loose-leaf [2] is provided with corresponding boss [14], and when boss [14] entered in the concave station [13], hinge can be held open state with the door location.

Among above-mentioned two embodiment, the top of described spill loose-leaf [1] and convex loose-leaf [2] is and following identical helicoid [6]; Or the top of described spill loose-leaf [1] and convex loose-leaf [2] is the plane.

It is pointed out that described gap [7] should be more than or equal to 1/4th of height between the starting point of helicoid [6] and the terminating point, promptly door can be opened into 90 ° of positions.

Claims

1. the door hinge that can close down automatically, comprise two loose-leaves and a jointed shaft, it is characterized in that: described two loose-leaves are divided into spill loose-leaf [1] and convex loose-leaf [2], jointed shaft [3] is fixed in two axle sleeves [4] up and down of spill loose-leaf [1], the middle part of jointed shaft [3] penetrates in the axle sleeve [5] at convex loose-leaf [2] middle part, the bottom of the bottom of the axle sleeve [4] of spill loose-leaf [1] and the axle sleeve [5] of convex loose-leaf [2] is identical helicoid [6], between the projection of the depression of spill loose-leaf [1] and convex loose-leaf [2] gapped [7].

2. the door hinge that can close down automatically according to claim 1, it is characterized in that: the lower hinge of described spill loose-leaf [1] has a horizontal limit hinge [8], it comprises the spacing axle sleeve [9] of spill loose-leaf [1] lower end, the spacing loose-leaf [10] hinged with spacing axle sleeve [9], spacing jointed shaft [11] is fixed on the spacing loose-leaf [10], spacing axle sleeve [8] is provided with gap [12] can make door be held open state spacing loose-leaf [10] location.

3. the door hinge that can close down automatically according to claim 1, it is characterized in that: the helicoid [6] of described spill loose-leaf [1] is provided with concave station [13], the helicoid [6] of convex loose-leaf [2] is provided with corresponding boss [14], when boss [14] entered in the concave station [13], hinge can be held open shape with the door location.

4. the door hinge that can close down automatically according to claim 1 is characterized in that: the top of described spill loose-leaf [1] and convex loose-leaf [2] is and following identical helicoid [6].

5. the door hinge that can close down automatically according to claim 1 is characterized in that: the top of described spill loose-leaf [1] and convex loose-leaf [2] is the plane.

6. the door hinge that can close down automatically according to claim 1 is characterized in that: described gap [7] are more than or equal to 1/4th of height between the starting point of helicoid [6] and the terminating point.