CN202249385U

CN202249385U - Door closer

Info

Publication number: CN202249385U
Application number: CN2011202851700U
Authority: CN
Inventors: 汤吉良
Original assignee: SUZHOU BENTENG PLASTIC CO Ltd
Current assignee: SUZHOU BENTENG PLASTIC CO Ltd
Priority date: 2011-08-08
Filing date: 2011-08-08
Publication date: 2012-05-30
Anticipated expiration: 2021-08-08

Abstract

The utility model relates to a door closer, which comprises a shell and a volute spring which is arranged in the shell, wherein a rotating shaft is fixed in the shell; one end of the rotating shaft is fixed with the volute spring, and the other end of the rotating shaft is fixed with a wire spool; and a steel wire is wound on the wire spool. The door closer has the advantages of simple, rational and compact structure, capability of realizing miniaturization of an overall structure, reliable automatic operation, convenience in use, no impact, no noise, capability of keeping a fire control door in a normally closed state, capability of guaranteeing personal safety and great promotional value.

Description

Door closer

Technical field

The utility model relates to a kind of auxiliary accessories of fire exit door, relates in particular to a kind of door closer.

Background technology

Enclosed stairwell in the building and smoke are topmost safety zones in the building.The purpose of its setting all is in order to prevent that flue gas and hot gas from getting into staircase; For building the passway for escaping that interior personnel provide a safety, played immeasurable effect for control fire spread, minimizing fire damage and support personnel smooth escape in fire.And labeled door is the basic component parts of enclosed stairwell.Mostly that is adopted at present is the normally closed type labeled door, realizes through door closer.Door closer is mainly used in provides a damping action to door-plate, so that door-plate has buffering effect when cutting out, but and the inner flexible member of being installed of door closer storage power when receiving compression, close when door-plate removes, can delay the answer of sliding door plate automatically in external force.At present employed is to adopt spring hinge to come the switch of control gate, and this structure is not easy to install, and it is easy to generate the bigger sound; Influenced people's environment; The long-time back of using is damaged easily, causes the afunction of closing the door automatically, and the combining structure of compression spring coupler link; Volume is big, takies very big space.

The utility model content

The utility model has overcome the deficiency of prior art, and a kind of simple in structure, volume is little, the life-span is long door closer is provided.

For achieving the above object; The technical scheme that the utility model adopts is: a kind of door closer; Comprise housing, be arranged on the whirlpool spring in the housing, be fixed with rotating shaft in the said housing, an end of said rotating shaft is fixed with said whirlpool spring; The other end of said rotating shaft is fixed with wire spool, is wound with steel wire on the said wire spool.

In preferred embodiment of the utility model, door closer comprises that further said rotating shaft and said housing are rotationally connected.

In preferred embodiment of the utility model, door closer comprises further in the said rotating shaft bearing is installed that said bearing is arranged between said wire spool and the said whirlpool spring.

In preferred embodiment of the utility model, door closer comprises that further the inner ring termination of said whirlpool spring is fixed in the said rotating shaft, and the termination, outer ring of said whirlpool spring snaps in the hook-shaped cavity that is provided with in the housing.

In preferred embodiment of the utility model, door closer comprises that further being parallel to said housing bottom is fixed with two adjacent cylindrical drum, and said cylindrical drum is along circumferentially having cannelure.

In preferred embodiment of the utility model, door closer comprises that further an end of said steel wire inserts in the space that said cannelure surrounds and extends to outside the housing.

In preferred embodiment of the utility model, door closer comprises that further the two sides that said housing is parallel to the whirlpool spring are provided with through hole, and the projection end face that extend said housing bottom is provided with the little installing hole of outer imperial palace.

The utility model has solved the defective that exists in the background technology; The utility model compactness simple and reasonable for structure realizes integrally-built miniaturization, and reliable automatically, easy to use; There are not bump, noiselessness; Can make fire exit door be in normally off, guarantee personal safety, have very big promotional value.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the structural representation of the preferred embodiment of the utility model;

Fig. 2 is the vertical view that whirlpool spring, wire spool connect;

Fig. 3 is the front view of housing;

Fig. 4 is the vertical view of Fig. 3;

Among the figure: 1, housing, 2, the whirlpool spring, 3, rotating shaft, 4, wire spool, 5, steel wire, 6, the termination, outer ring, 7, the inner ring termination, 8, bearing, 9, hook-shaped cavity, 10, cylindrical drum, 11, cannelure, 12, the space, 13, through hole, 14, installing hole, 15, projection.

The specific embodiment

Combine accompanying drawing and embodiment that the utility model is done further detailed explanation now, these accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

Like Fig. 1, shown in Figure 2, a kind of door closer comprises housing 1, is arranged on the whirlpool spring 2 in the housing 1; Be fixed with rotating shaft 3 in the said housing 1; One end of said rotating shaft 3 is fixed with said whirlpool spring 2, and the other end of said rotating shaft 3 is fixed with wire spool 4, is wound with steel wire 5 on the said wire spool 4.Wherein, said rotating shaft 3 is rotationally connected with said housing 1, through rotating shaft 3 rotation is passed to whirlpool spring 2 or steel wire 5.

In the preferred said rotating shaft 3 of the utility model bearing 8 is installed, said bearing 8 is arranged between wire spool 4 and the whirlpool spring 2, rotates more smooth and easy.

As shown in Figure 3, the inner ring termination 7 of whirlpool spring 2 is fixed in the rotating shaft 3, and the termination, outer ring 6 of whirlpool spring 2 snaps in the hook-shaped cavity 9 that is provided with in the housing 1.

Further; The utility model preferred parallel is fixed with two adjacent cylindrical drum 10 in said housing 1 bottom; Said cylindrical drum 10 is along circumferentially having cannelure 11, and said steel wire 5 inserts in the space 12 that said cannelure 11 surrounds and extends to outside the housing 1, not only makes steel wire 5 along an orbiting motion; And can avoid the wearing and tearing of steel wire 5, prolonged application life.

Like Fig. 3, shown in Figure 4; On the door that housing 1 is installed to different structure; The two sides that said housing 1 is parallel to whirlpool spring 2 are provided with through hole 13; Projection 15 end faces that extend said housing 1 bottom are provided with the little installing hole of outer imperial palace 14, and it is interior and do not expose, elegant in appearance to make screw can all insert installing hole 14.

When the utility model uses, through through hole 13 or installing hole 14 housing 1 is fixed on the fixture such as doorframe, an end of steel wire 5 is inserted in the space 12 that said cannelure 11 surrounds and extends to that housing 1 is outer to be connected on the dodge gate again.When promoting dodge gate, dodge gate taut wire 5, steel wire 5 makes 2 tensions of whirlpool spring through the rotation of rotating shaft 3; After the people left, whirlpool spring 2 discharged pulling force, and rotating shaft 3 is rotated drive steel wire 5 and is recovered in the housing 1, simultaneously dodge gate is retracted, and realizes closing the door automatically function.

Above desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the manual, must confirm technical scope according to the claim scope.

Claims

1. a door closer comprises housing, is arranged on the whirlpool spring in the housing, and it is characterized in that: be fixed with rotating shaft in the said housing, an end of said rotating shaft is fixed with said whirlpool spring, and the other end of said rotating shaft is fixed with wire spool, is wound with steel wire on the said wire spool.

2. door closer according to claim 1 is characterized in that: said rotating shaft and said housing are rotationally connected.

3. door closer according to claim 1 is characterized in that: in the said rotating shaft bearing is installed, said bearing is arranged between said wire spool and the said whirlpool spring.

4. door closer according to claim 1 is characterized in that: the inner ring termination of said whirlpool spring is fixed in the said rotating shaft, and the termination, outer ring of said whirlpool spring snaps in the hook-shaped cavity that is provided with in the housing.

5. door closer according to claim 1 is characterized in that: be parallel to said housing bottom and be fixed with two adjacent cylindrical drum, said cylindrical drum is along circumferentially having cannelure.

6. door closer according to claim 5 is characterized in that: an end of said steel wire inserts in the space that said cannelure surrounds and extends to outside the housing.

7. door closer according to claim 1 is characterized in that: the two sides that said housing is parallel to the whirlpool spring are provided with through hole, and the projection end face that extend said housing bottom is provided with the little installing hole of outer imperial palace.