CN2818716Y

CN2818716Y - Angle-adjusting foldable hinge

Info

Publication number: CN2818716Y
Application number: CN 200520085642
Authority: CN
Inventors: 冷鹭浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-28
Filing date: 2005-07-28
Publication date: 2006-09-20
Anticipated expiration: 2015-07-28

Abstract

The utility model relates to a folding hinge for regulating angle. One side of the connecting position of a first connecting arm and a second connecting arm forms a pivoting part, and the other side forms a regulating part. The first connecting arm and the second connecting arm are pivoted through a connecting shaft at one side of the pivoting part, and the connecting end of the first connecting arm is provided with a plurality of circumferential smooth ratchets at the edge at one side of the regulating part. The connecting end of the second connecting arm is pivoted with a regulating sheet through a rotating shaft at one side of the regulating part, and two sides of the regulating sheet form a ratchet pawl and a pull handle which mutually form certain included angle. The ratchet pawl is matched with ratchet grooves among ratchets, and every ratchet groove form a pressing side which is abutted with the end part of the ratchet pawl, and a pushing side which is abutted with the inner lateral edge of the ratchet pawl. The pull handle is connected with the second connecting arm through a pull spring, the utility model has the advantages of simpler structure and convenient assembly, and the first connecting arm and the second connecting arm can realize mutual and complete folding.

Description

Can regulate the folding hinge of knuckle

Technical field

The utility model relates to a kind of folding hinge, specifically is meant a kind of folding hinge of regulating the knuckle size.

Background technology

The folding hinge that can regulate the knuckle size is usually used in the backrest of chair or sofa and adjustable being rotationally connected between the seat, and what be used for also that other need regulate is rotatably connected.

Chinese patent provides a kind of multipurpose ratchet-type hinge for No. 98229005.5, comprise the outer lock body that contains groove, pass outer lock body groove and be fixed on back shaft on the outer lock body, the end that interior lock body contains hollow ratchet tooth plate stretches in the outer lock body groove and is hinged on the back shaft, the return tongue that contains bump portion and limiting section is arranged in the groove of hollow ratchet tooth plate and is hinged on the back shaft, place an end of the ratchet that the ratchet with on the hollow ratchet tooth plate of outer lock body cooperates to be hinged on the pawl axis on the outer lock body, the two ends of spring are connected on pawl axis and the ratchet.Spring makes the ratchet compression fit on the ratchet tooth plate, when outer lock body relative with interior lock body when folding, ratchet can slide with respect to the ratchet on the ratchet tooth plate, on the contrary, when outer lock body is relative with interior lock body when stretching, ratchet is sticked on the ratchet tooth plate and can not slides, and has only by pulling the return tongue, make ratchet break away from the ratchet tooth plate, can make just that outer lock body is relative with interior lock body to be stretched.

Above-mentioned way ratchet-type hinge needs the return tongue to cooperate just tensible, so its structure is comparatively complicated, and assembling is trouble comparatively also, and, because the existence of return tongue, can't roll over fully between outer lock body and the interior lock body and be close together.

The utility model content

The utility model provides a kind of folding hinge of regulating knuckle, and its main purpose is to overcome existing ratchet-type hinge arrangement complexity, assembling trouble, and the two parts that are folded can't be rolled over the shortcoming that is close together fully.

The utility model adopts following technical scheme: the folding hinge that can regulate knuckle, comprise the first mutually hinged linking arm and second linking arm, one side of first linking arm and the second linking arm connecting portion forms the articulated section, opposite side forms adjusting portion, the link of the link of first linking arm and second linking arm articulates by a connecting axle in this articulated section one side, the link of first linking arm is provided with the level and smooth ratchet of some peripheries in adjusting portion one lateral edges, the link of second linking arm is pivoted with an adjustment sheet in adjusting portion one side by a rotating shaft, these adjustment sheet both sides form ratchet and the handle that is mutually certain angle, the overbending direction of this angle and first linking arm, the folding direction of second linking arm is corresponding, this ratchet cooperates with ratchet slot between aforementioned ratchet, each ratchet slot forms one and compresses the promotion limit of conflicting with the medial margin of this ratchet in limit and with conflict in the end of this ratchet, and this handle passes through an extension spring and is connected with second linking arm.The handle of this extension spring tension adjustment sheet makes click-fit in ratchet slot, if first linking arm and second linking arm are applied its power of rotating to folding direction that makes, then promotion ratchet in the promotion limit of ratchet slot overcomes the pulling force rotation of extension spring and slips in next ratchet slot; If first linking arm and second linking arm are applied the power that it is rotated to direction of extension, then ratchet slot compresses the end face application of force of limit to ratchet, this thrust is by the rotating shaft of ratchet, first linking arm and second linking arm are relatively rotated, if will realize stretching, to the adjustment sheet application of force, make its ratchet break away from ratchet slot.

Can regulate the folding hinge of knuckle, its first linking arm caves inward near the position of ratchet in adjusting portion one side, form one be used to conflict described ratchet lateral border, continue the limited mouth that rotates relative to first linking arm to limit second linking arm.When first linking arm and second linking arm in line the time, the lateral border of ratchet contacts in this limited mouth, this moment is if apply the power that it is rotated to direction of extension to first linking arm and second linking arm, then this limited mouth is pressed in the lateral border of this ratchet, be subjected to the restriction of its rotating shaft, first linking arm and second linking arm can't relatively rotate.

The aforementioned folding hinge of regulating knuckle, its second linking arm extends to form a lug in the lateral margin of adjusting portion one side, and described extension spring is connected between described adjustment sheet handle and this lug.

The aforementioned folding hinge of regulating knuckle, also comprise a side cover, this side cover comprises integrally formed fixed arm and cover plate, this fixed arm is fixed in the rotating shaft of connecting axle between first linking arm, second linking arm and described adjustment sheet, and this cover plate is covered in handle, extension spring and the lug outside of described adjustment sheet.

The aforementioned folding hinge of regulating knuckle, its first linking arm and second linking arm form first stator and second stator respectively by the lateral margin extension of adjusting portion one side, are equipped with fixing hole on first stator and second stator.

By above-mentioned description to the utility model structure as can be known, compare, the utlity model has following advantage with prior art: one, structure is simpler, easy to assembly; Two, the first linking arms and second linking arm can be realized rolling over fully mutually leaning on.

Description of drawings

Fig. 1 is in the perspective view of full extension state for the utility model;

Perspective view after Fig. 2 is in the full extension state and removes side cover for the utility model;

Fig. 3 is the perspective view of the utility model folded state one;

Fig. 4 is the perspective view after the utility model folded state one is removed side cover;

Fig. 5 is the perspective view of the utility model folded state two;

Fig. 6 is the perspective view after the utility model folded state two is removed side cover;

Fig. 7 is the perspective view of the utility model side cover;

Fig. 8 is the perspective view of the utility model adjustment sheet;

Fig. 9 is the elevation of the utility model first linking arm.

Specific embodiment

Below with reference to 1 to Fig. 6 specific embodiment of the utility model is described.

See figures.1.and.2, this folding hinge that can regulate knuckle comprises that a side of the first mutually hinged linking arm 1 and second linking arm, 2, the first linking arms 1 and second linking arm, 2 connecting portions forms articulated section 10, and opposite side forms adjusting portion 20.

Outwards protrude this articulated section 10, and the link of the link of first linking arm 1 and second linking arm 2 articulates by a connecting axle 3 in these articulated section 10 1 sides.With reference to Fig. 9, the link of first linking arm 1 is provided with between level and smooth ratchet 11, three ratchets 11 of three peripheries in adjusting portion 20 1 lateral edges and forms two ratchet slots 12, and each ratchet slot 12 both sides forms one respectively and compresses limit 121 and and promote limit 122.

The link of second linking arm 2 is pivoted with an adjustment sheet 4 in adjusting portion 20 1 sides by a rotating shaft 43, with reference to Fig. 8, these adjustment sheet 4 both sides form ratchet 41 and the handle 42 that is mutually certain angle, the overbending direction of this angle is corresponding with the folding direction of first linking arm 1, second linking arm 2, this ratchet 41 cooperates with the ratchet slot 12 of 11 of aforementioned ratchets, conflicting with the end of this ratchet 41 in the limit 121 that compresses of ratchet slot 12, conflicts with the medial margin of this ratchet 41 in promotion limit 122.Second linking arm 2 extends to form a lug 21 in the lateral margin of adjusting portion 20 1 sides, is connected by an extension spring 5 between the handle 42 of described adjustment sheet 4 and this lug 21.

First linking arm 1 caves inward near the position of ratchet 11 in adjusting portion 20 1 sides, form one be used to conflict described ratchet 41 lateral borders, continue the limited mouth 13 that rotates relative to first linking arm 1 to limit second linking arm 2.Also comprise a side cover 5 in addition, with reference to Fig. 7, this side cover comprises integrally formed fixed arm 51 and cover plate 52, this fixed arm 51 is fixed in the rotating shaft 43 of connecting axle 3 between first linking arm 1, second linking arm 2 and described adjustment sheet 4, and this cover plate 52 is covered in handle 42, extension spring 5 and lug 21 outsides of described adjustment sheet 4.

First linking arm 1 and second linking arm 2 are by lateral margin extension formation respectively first stator 14 and second stator 22 of adjusting portion 20 1 sides, being respectively equipped with fixing hole 140,220, the first stators 14 and second stator 22 on first stator 14 and second stator 22 is used for fixing with the two parts that use this hinge.

The handle 42 of these extension spring 5 tension adjustment sheets 4, ratchet 41 is matched with in the ratchet slot 12, if first linking arm 1 and second linking arm 2 are applied its power of rotating to folding direction that makes, then the promotion limit 122 promotion ratchets 41 of ratchet slot 12 overcome the pulling force rotation of extension spring 5 and slip in next ratchet slot 12; If first linking arm 1 and second linking arm 2 are applied the power that it is rotated to direction of extension, then ratchet slot 12 compresses the end face application of force of limit 121 to ratchet 41, this thrust is by the rotating shaft 43 of ratchet 41, first linking arm 1 and second linking arm 2 are relatively rotated, if will realize stretching, to adjustment sheet 4 application of forces, make its ratchet 41 break away from ratchet slot 12.When first linking arm 1 and second linking arm 2 in line the time, the lateral border of ratchet 41 contacts in this limited mouth 13, this moment is if apply the power that it is rotated to direction of extension to first linking arm 1 and second linking arm 2, then this limited mouth 13 is pressed in the lateral border of this ratchet 41, be subjected to the restriction of its rotating shaft 43, first linking arm 1 and second linking arm 2 can't relatively rotate.

Fig. 1 to Fig. 6 has shown three kinds of states of this hinge of realizing by above-mentioned steps, Fig. 1 and Fig. 2 have shown that hinge is in the full extension state, Fig. 3 to Fig. 6 has then shown two kinds of folded states of hinge, and in these two kinds of folded states, ratchet 41 is matched with respectively in two ratchet slots 12.

Above-mentioned only is a specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.

Claims

1, can regulate the folding hinge of knuckle, comprise the first mutually hinged linking arm and second linking arm, it is characterized in that: a side of first linking arm and the second linking arm connecting portion forms the articulated section, opposite side forms adjusting portion, the link of the link of first linking arm and second linking arm articulates by a connecting axle in this articulated section one side, the link of first linking arm is provided with the level and smooth ratchet of some peripheries in adjusting portion one lateral edges, the link of second linking arm is pivoted with an adjustment sheet in adjusting portion one side by a rotating shaft, these adjustment sheet both sides form ratchet and the handle that is mutually certain angle, the overbending direction of this angle and first linking arm, the folding direction of second linking arm is corresponding, this ratchet cooperates with ratchet slot between aforementioned ratchet, each ratchet slot forms one and compresses the promotion limit of conflicting with the medial margin of this ratchet in limit and with conflict in the end of this ratchet, and this handle passes through an extension spring and is connected with second linking arm.

2, the folding hinge of regulating knuckle as claimed in claim 1, it is characterized in that: described first linking arm caves inward near the position of ratchet in adjusting portion one side, form one be used to conflict described ratchet lateral border, continue the limited mouth that rotates relative to first linking arm to limit second linking arm.

3, the folding hinge of regulating knuckle as claimed in claim 1 is characterized in that: described second linking arm extends to form a lug in the lateral margin of adjusting portion one side, and described extension spring is connected between described adjustment sheet handle and this lug.

4, the folding hinge of regulating knuckle as claimed in claim 3, it is characterized in that: also comprise a side cover, this side cover comprises integrally formed fixed arm and cover plate, this fixed arm is fixed in the rotating shaft of connecting axle between first linking arm, second linking arm and described adjustment sheet, and this cover plate is covered in handle, extension spring and the lug outside of described adjustment sheet.

5, the folding hinge of regulating knuckle as claimed in claim 1, it is characterized in that: first linking arm and second linking arm form first stator and second stator respectively by the lateral margin extension of adjusting portion one side, are equipped with fixing hole on first stator and second stator.