CN101333898B

CN101333898B - Novel door closer

Info

Publication number: CN101333898B
Application number: CN2008100637387A
Authority: CN
Inventors: 崔惠鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-29
Filing date: 2008-07-29
Publication date: 2011-06-22
Anticipated expiration: 2028-07-29
Also published as: CN101333898A

Abstract

Disclosed is a new door closer which belongs to the mechanical field and is used for solving the defects of being unable to make the door maintain the opening state when the door is opened to a certain degree, complicated structure and bad concealment property found in the door closer in the prior art; the new door closer can enable the door to be closed automatically when the door is opened lessthan a certain angle and enables the door to be maintained in the opening state when the door is opened more than the angle; the new door closer is mounted on the inner side of the vertical door frame on the door shaft; a clamp groove composed of an upper part and a lower part is fixed on one side of a vertical flat plate; both ends of an elastic steel wire bent to be U-shaped are folded outwardsto be arranged in the upper and lower parts of the clamp groove. The edge of the clamp groove contacted with the elastic steel wire is inclined; the elastic steel wire is enabled to have vertical compression deformation through the pressing force of the clamp groove inclined edge when the door is opened through the rotation in the horizontal direction; the deformation enables the elastic steel wire to generate the door closing force in the horizontal direction; the door closing force is reduced when the elastic steel wire rotates to the position through the reduction of the gradient of the back segment of the clamp groove inclined edge so that the door is maintained in the open state.

Description

Novel door closer

Technical field

The present invention is a kind of novel door closer that is installed on the door and window structure.It can make door close automatically, also can make door remain on open mode when being opened to a certain degree.

Background technology

At present, door closer commonly used all is mounted in the top of door, connects door and doorframe with the arm of force, and the deformation generation elastic force by spring acts on door by the arm of force again, and door is closed automatically.This door closer has following shortcoming: the first, can only make the door close automatically, can not make the door be opened to certain angle (refer to the door with doorframe on the bottom angle) time, remain on open position.Because sometimes, the user wishes door when being opened to than wide-angle, and door can remain on open mode; The second, complex structure relates to multiple technologies and parts such as hydraulic pressure, piston, the arm of force, spring, and consumption of raw material is many; The 3rd, need on door and doorframe, all be connected and fixed.The opposite house punching damages; The 4th, can only be installed in the door the top, the installation site is dumb; The 5th, disguised low, cause dysopia.

Summary of the invention

In order to overcome the shortcoming of the door closer commonly used that proposes in the above-mentioned background technology, the invention provides a kind of new-type door closer.This door closer not only can make door close automatically, also can make door remain on open mode when being opened to certain angle.And this novel door closer features simple structure saves material, good concealment, and the installation site is flexible, complete function.

The technical solution adopted for the present invention to solve the technical problems is: by the draw-in groove of an edge tilt, the power that elastic wire is produced in vertical direction deformation is converted into the power of horizontal direction, promotes door and closes automatically.By reducing the gradient of draw-in groove edge back segment, reduce the elastic force of elastic wire, the thrust that makes its generation is not enough so that door closes, thereby makes door stay open state when being opened to certain position.

In the square four jiaos of punchings of two vertical plates of a block length, be fixed in an inboard near above the doorframe of door-hinge with screw.By door-hinge one side, fix the draw-in groove of a ring-shaped section and ring-shaped at two vertical plates, draw-in groove can extend crooked cutting by the side of the close door-hinge of two vertical plates and form.Draw-in groove divides two parts up and down, leaves a blank in the middle of two parts draw-in groove, and the top edge of top draw-in groove is smooth, and lower limb is low dip gradually, and two sections of the punishment of tilting, and preceding slope over 10 is greater than the back slope over 10, and the occurrence of slope will be with reference to the coefficient of elasticity value of elastic wire.Lower part draw-in groove shape and top draw-in groove axial symmetry.With one section elastic wire two ends outwards bending respectively that is bent into U-shaped, the two ends bending part is inserted respectively in the lower bayonet slot.Gauge of wire is less than the draw-in groove interior diameter, so that bending place, elastic wire two ends can be rotated in draw-in groove, is about 0.4 times of draw-in groove interior diameter, when making, can adjust concrete ratio according to actual tests.Elastic wire is axle with the draw-in groove, can rotate in the horizontal direction, in rotation process, is subjected to the extruding of draw-in groove sloping edge, produces vertical direction deformation, and elastic wire is converted into the power that horizontal direction pushes simultaneously in the power that vertical direction deformation produces.Under the nature, the contact point of steel wire and draw-in groove is the top edge minimum point of the lower limb peak and the lower part draw-in groove of top draw-in groove, just a position of closing.In the bending place of U-shaped elastic wire, overlap a roller, this roller contact with door, opposite house applies the power of closing the door, be used for simultaneously reducing and between friction.

When firmly opening the door, door promotes roller, and making elastic wire is that axle rotates at horizontal plane with the draw-in groove, and elastic wire is subjected to the extruding of draw-in groove sloping edge simultaneously, causes vertical direction deformation, therefore produces the power that door is shut.When before elastic wire and the draw-in groove sloping edge half section when contacting, remove the power of opening the door, elastic wire drives roller and promotes door, shuts the door.When elastic wire contacted with the draw-in groove sloping edge second half section, because the slope of draw-in groove sloping edge second half section is less, therefore the deformation of elastic wire vertical direction generation is little, the power of the horizontal direction that produces is not enough to promote door and closes, but elastic wire self is rotated to the direction of closing the door, at this moment, goalkeeper remains on open mode.When with external force at closing time, elastic wire rotates with door, and half section the time, the power that elastic wire produces in the horizontal direction can promote door again and close before elastic wire and draw-in groove contact point are positioned at the draw-in groove sloping edge.The separation of draw-in groove sloping edge preceding half section and second half section meets following requirement: when door is opened when making elastic wire and draw-in groove contact point for this place, the angle that elastic wire turns over from nature is 111 to spend.Because elastic wire and door plane parallel, at this moment, the angle that door is opened (angle of door plane and top or bottom doorframe) also is 111 degree, these number of degrees are that 180 degree multiply by Fibonacci number 0.618, because generally speaking, when the user opens to about 111 when spending with door, be to wish that this position of Men Nengcong begins to remain on open mode.Therefore can realize making door when opening, to close automatically, also can make door when being opened to certain angle, remain on open mode less than certain angle.

The invention has the beneficial effects as follows: can realize making door when opening, to close automatically, also can make door when being opened to certain angle, remain on open mode less than certain angle; Only need be installed on the doorframe, opposite house does not damage; Can be installed in the optional position of door-hinge place doorframe, the installation site is flexible; Good concealment, dysopia is little; Features simple structure saves material.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structure chart of novel door closer.

Fig. 2 is the plane outspread drawing of novel door closer parts (1) two vertical plates and parts (2) draw-in groove.

Fig. 3 is that novel door closer is installed in the structure chart on the door.

Among the figure, 1. two vertical plates, 2. draw-in groove, 3. elastic wire, 4. roller, 5. screw hole, 6. door-hinge place doorframe, 7., 8. the draw-in groove sloping edge is preceding half section, 9. the separation of draw-in groove sloping edge preceding half section and draw-in groove sloping edge second half section, 10. draw-in groove sloping edge second half section.

The specific embodiment

In the present embodiment, suppose the door open counterclockwise from left to right.Among Fig. 1, the novel door closer state is that door is in an closed position, and this state is the nature of novel door closer.Two vertical plates has screw hole (5) for (1) four jiao, near a side of door-hinge a draw-in groove (2) that the cross section is rounded is arranged at two vertical plates (1), and draw-in groove (2) divides two parts up and down, and these two parts are symmetry up and down.Draw-in groove (2) is curled near the side extension of door-hinge by two vertical plates (1) and cutting constitutes.The top top edge of draw-in groove (2) is smooth, and lower limb tilts, and preceding half slope over 10 of lower limb is greater than the second half section slope.The lower part shape of draw-in groove (2) and top axial symmetry.Elastic wire (3) two ends of bending are gone up folding respectively and are rolled over down, insert in the top and the bottom of draw-in groove (2), and the diameter of elastic wire (3) is about 0.4 times of draw-in groove (2) interior diameter less than the interior diameter of draw-in groove (2), so that it can serve as that axle rotates with draw-in groove (2).At elastic wire (a 3) bending place cover roller (4), roller (4) contact with door (7), and opposite house (7) produces the power of closing the door, and is used for reducing the frictional force at the contact point place of novel door closer and (7) simultaneously.

Among Fig. 2, draw-in groove (2) is launched into plane, can knows the shape of seeing draw-in groove (2) sloping edge preceding half section (8) and draw-in groove sloping edge second half section (10).

Among Fig. 3, two vertical plates (1) is fixed on door-hinge place doorframe (6) inboard by screw hole (5) with screw.Roller (4) contacts with door, and opposite house (7) produces the power of closing the door clockwise from right to left.

When opening the door with external force, it serves as that axle rotates counterclockwise from left to right with draw-in groove (2) that roller (4) drives steel wire (3), elastic wire (3) contacts with draw-in groove sloping edge preceding half section (8), at the contact point place, half section (8) compression elastic wire (3) is subjected to the draw-in groove sloping edge when rotating before, produce the power of vertical direction, draw-in groove (2) is converted into this power by the power of closing the door clockwise from right to left simultaneously.At this moment, remove the power of opening the door, door (7) will be shut automatically.

Behind the separation (9) of half section (8) and draw-in groove sloping edge second half section (10), elastic wire (2) contacted with the draw-in groove sloping edge second half section (10) before elastic wire (2) rotates counterclockwise above the draw-in groove sloping edge from left to right.Since the slope of draw-in groove sloping edge second half section (10) than the draw-in groove sloping edge before half section (8) little, at this moment, the deformation that elastic wire (2) is taken place by draw-in groove sloping edge second half section (10) compression when rotating counterclockwise from left to right is little, the power of closing the door clockwise from right to left that elastic wire (2) produces is little, this power is not enough so that door (7) is shut, only so that elastic wire (2) self drives the direction rotation that roller (4) is being closed the door from right to left clockwise.At this moment, remove the power of opening the door, door (7) will remain on open mode.

When elastic wire (2) and draw-in groove sloping edge second half section (10) when contacting, apply the external force of closing the door, before elastic wire (2) clockwise rotates above the draw-in groove sloping edge from right to left behind the separation (9) of half section (8) and draw-in groove sloping edge second half section (10), elastic wire (2) contacts with draw-in groove sloping edge preceding half section (8), at this moment, remove the external force of closing the door, door (7) will be shut automatically.

When door therewith embodiment open direction when opposite because this novel door closer structure symmetry up and down, same being suitable for.

Claims

1. novel door closer, be installed on the vertical doorframe at door-hinge place, constitute by two vertical plates, draw-in groove, elastic wire, roller, it is characterized in that: the draw-in groove of fixing a ring-shaped section and ring-shaped in a side of two vertical plates, draw-in groove divides two parts up and down, leave a blank in the middle of two parts draw-in groove, the top edge of top draw-in groove is smooth, lower limb is low dip gradually, and two sections of the punishment of tilting, preceding slope over 10 is greater than the back slope over 10, and the occurrence of slope will be with reference to the coefficient of elasticity value of elastic wire, lower part draw-in groove shape and top draw-in groove axial symmetry; Be bent into outside the elastic wire two ends of U-shaped and roll over, insert respectively in two parts up and down of draw-in groove; The edge that draw-in groove contacts with elastic wire is skewed; Roller of middle bending place cover at elastic wire.

2. novel door closer according to claim 1 is characterized in that: a two vertical plates, four jiaos of two vertical plates are porose, are used for it is fixed on the vertical doorframe at door-hinge place with screw.

3. novel door closer according to claim 1, it is characterized in that: fix a draw-in groove in a side of two vertical plates, draw-in groove divides two parts up and down, leave a blank in the middle of two parts draw-in groove, draw-in groove can extend bending by two vertical plates one side and constitute, the cross section projection of draw-in groove ringwise, the top edge of top draw-in groove is smooth, lower limb is low dip gradually, and two sections of the punishment of tilting, preceding slope over 10 is greater than the back slope over 10, the occurrence of slope will be with reference to the coefficient of elasticity value of elastic wire, two sections separation place meets following requirement: when elastic wire and draw-in groove contact point were positioned at this separation, the angle that elastic wire turns over from nature was 111 degree, lower part draw-in groove shape and top draw-in groove axial symmetry.

4. novel door closer according to claim 1 is characterized in that: when the open angle of door when spending greater than 111, door can remain on open mode, this angle computation method is that 180 degree multiply by Fibonacci number, rounds then.

5. novel door closer according to claim 1 is characterized in that: bend to outside the elastic wire two ends of U-shaped and roll over, insert respectively in two parts up and down of draw-in groove.

6. novel door closer according to claim 1 is characterized in that: roller housing is in the middle bending place of elastic wire.