CN201141256Y - Silent hinge for automatically closing house door - Google Patents

Abstract

The utility model particularly relates to a silent hinge which can automatically close a door. The silent hinge comprises a fixed leaf, an upper end enclosure, an overload safeguard bolt, a moveable lifting seat, a fixed lifting seat, a moveable leaf, an overload safeguard spring, a respiring hydraulic damper, a door-closing torsion spring, a fixing pin, a lower end enclosure and a bush. The fixed leaf is fixed on the door frame through screws and the moveable leaf is fixed on the other side of the door through bolts; the moveable lifting seat is fixed on the moveable leaf and the fixed lifting seat is arranged on the bush and the fixed leaf; one end of the torsion spring is fixed on the bush and the fixed leaf, and the other end is fixed on the moveable leaf; the upper part of the respiring hydraulic damper is connected at the lower part of the moveable lifting seat through the overload safeguard spring which is compressed by the overload safeguard bolt. The silent hinge can enable the door to be closed gently without noise, reaching silencing effect and quieting the environment.

Description

Door is closed quiet loose-leaf automatically

Technical field:

The utility model relates to a kind of quiet loose-leaf, especially a kind of quiet loose-leaf with door automatic closing function.

Background technology:

Door is generally closed by the people in the building that people live at present, because the strength of closing the door is inconsistent, causes having at closing time the different sounds to occur.Particularly in the place that environment needs peace and quiet, in hospital, reading room, conference room and family, the interference that reduces noise is very necessary.At present the corridor door in building is equipped with a kind of door closer, because door closer is to be attached on the top of door, though certain automatic pass gate action is arranged, has influenced the attractive in appearance of building and door.So the purpose of this utility model is for a kind of product that can not only replace loose-leaf and door closer is provided, and has the door loose-leaf of automatic closing function and mute function.

Summary of the invention

The utility model purpose is to overcome above-mentioned the deficiencies in the prior art part, provides a kind of and is used to build on the door, has the novel door loose-leaf of automatic closing function and mute function.

For achieving the above object; the technical scheme that the utility model provides is: include fixation leaf; upper cover; the overload protection bolt; the lifting sliding seat; the lifting holder; movable sheet; the overload protection spring; respiration type hydraulic damper; the torque spring of closing the door; steady pin; low head; lining; fixation leaf is fixed on the doorframe with screw; movable sheet is screwed in door one side; the lifting sliding seat is fixed on the movable sheet; the lifting holder is contained on lining and the fixation leaf; a torque spring wherein end is fixed on lining and the fixation leaf; the other end is fixed on the movable sheet, and the bottom that the overload protection spring is connected the lifting sliding seat has been compressed by the overload protection bolt in respiration type hydraulic damper top.

Action of the present utility model is after being pushed the door open by manpower, because door assembling two or three quiet loose-leaves, inner lifting gear is when manpower opens the door, door lifting gear moved down, so in the back effect owing to torque spring of loosing one's grip of opening the door, can be closed automatically, in the process of closing, played effective damping action owing to damper, make door slowly, noiseless closes, and has reached quiet effect and played environment quietly to act on.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is the utility model working state structure schematic diagrames.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing,

See shown in accompanying drawing 1～accompanying drawing 2:

It includes fixation leaf 1, upper cover 2, overload protection bolt 3, lifting sliding seat 4, lifting holder 5, movable sheet 6, overload protection spring 7, respiration type hydraulic damper 8, the torque spring 9 of closing the door, steady pin 10, low head 11, lining 12 and combines.Wherein fixation leaf 1 is to be fixed on the doorframe with screw, movable sheet 6 is to be screwed in door one side, lifting gear is to be combined by lifting sliding seat 4 and lifting holder 5, lifting sliding seat 4 is fixed on the movable sheet 6 by screw, lifting holder 5 by screw device on lining 12 and fixation leaf 1, when lifting holder 5 rotates in lifting sliding seat 4,, the structure of screw thread moves up and down because making lifting holder 5 rotate with lifting sliding seat 4.The indentation limitations of lining 12 rotation of lifting sliding seat 4, only allow to move up and down.Lifting sliding seat like this 4 drives respiration type hydraulic damper 8 and moves up and down simultaneously when moving up and down.So slowly move and just reached quiet effect.Protection spring 7 is in order to run under the situation that strength is closed the door greatly; its close the door strength and the speed of closing the door are compressed during greater than the damping force of respiration type hydraulic damper 8; so just reduced impact force and pressure, thereby protected respiration type hydraulic damper 8 respiration type hydraulic damper 8.Torque spring 9 a wherein end is fixed on lining 12 and the fixation leaf 1, and the other end is fixed on the movable sheet 6, has just tightened torque spring 9 simultaneously like this when movable sheet 6 rotates, and makes torque spring 9 produce torsion, has reached the purpose of closing the door automatically.

The bottom that overload protection spring 7 is connected lifting sliding seat 4 has been compressed by overload protection bolt 3 in respiration type hydraulic damper 8 tops, lifting under the effect of lifting sliding seat 4 lifting activities, and with the hydraulic damping effect, act on the usefulness of closing the door automatically.

More than the comprehensive function of each parts, reached the effect that the door automatic mute is closed, make environment reduce noise, quiet more, and reach purpose of energy saving.

The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the equivalence that all shapes according to the utility model, structure and principle are done changes, all should be covered by in the protection domain of the present utility model.

Claims (1)

1; door is closed quiet loose-leaf automatically; include fixation leaf (1); upper cover (2); overload protection bolt (3); lifting sliding seat (4); lifting holder (5); movable sheet (6); overload protection spring (7); respiration type hydraulic damper (8); the torque spring (9) of closing the door; steady pin (10); low head (11); lining (12); it is characterized in that: fixation leaf (1) is fixed on the doorframe with screw; movable sheet (6) is screwed in door one side; lifting sliding seat (4) is fixed on the movable sheet (6); lifting holder (5) is contained on lining (12) and the fixation leaf (1); torque spring (a 9) wherein end is fixed on lining (12) and the fixation leaf (1); the other end is fixed on the movable sheet (6), and the bottom that overload protection spring (7) is connected lifting sliding seat (4) has been compressed by overload protection bolt (3) in respiration type hydraulic damper (8) top.

Images