CN200952304Y - Double bearing lubricating oil groove structure for pivot device - Google Patents

Abstract

An oil groove structure of twin support used for hinge, which is positioned on a twin support, the twin support comprises a double bending elastic part extended from a connection part, which is sheathed on a rotary shaft, so as to provide the location effects of the hinge at any angle; a four-channel oil groove is positioned on an inner side of contact of the bending elastic part and rotary shaft, of which two channels in the middle are long arc oil grooves close to the edge from the centre, two channel of the two outer sides are short oil grooves wrapped by two-channel long arc oil groove in the middle. Hereby, through non-interlaced configuration of four-channel oil groove, the oil groove has the effects of self-lubricating functions without being accumulated, in addition, the oil storage will be abundant for increase of the total length.

Description

The pivot oil duct structure of double bearing frame

Technical field

The utility model refers to the oil duct structure of a kind of pivot with double bearing frame especially about a kind of pivot double bearing frame structure.

Background technology

In pivot,, and a kind of design of double bearing frame is arranged in pivot for the electronic equipment that reaches folding can be in the function of each angle orientation that is unlocked (for example the screen of notebook computer is located at opening angle).This double bearing frame is by extending the tangent bend elastic portion on the plane connecting portion, utilize this tangent bend elastic portion closely to be sleeved in the rotating shaft, making that pivot can be in arbitrary angle orientation.

Start action easily in order to reduce the wearing and tearing between elastic portion and the rotating shaft and to make, the medial surface that how can contact with rotating shaft in elasticity of flexure portion is provided with oil duct.Shown the plan view that a kind of elasticity of flexure portion 91 of traditional double bearing frame launches at Fig. 5, side surface has been offered the oil duct 92 of X shape within it.Utilize the oil duct 92 interior storage lubrication oil of this X shape can be distributed to each surface that rotating shaft is in contact with it, and produce lubricant effect, to make things convenient for the unlatching of folding thing.

Though this kind traditional X-ray shape oil duct 92 can reach lubricant effect, owing to easily form the phenomenon that lubrication oil is piled up, make that the lubricant effect of rotating shaft and crooked shell fragment contact surface is inhomogeneous at intermediate interdigitated point place, easily cause the shortcoming of damage, remain to be improved.

Summary of the invention

The utility model purpose is, the oil duct structure of a kind of pivot with double bearing frame is provided, and it is directed to the shortcoming of traditional X-ray shape oil duct design and is improved, by the not staggered configuration of four road oil ducts, make oil duct have and can not pile up, and have the richer effect of oil storage from the profit function.

A kind of pivot of the utility model is with the oil duct structure of double bearing frame, and this double bearing frame is positioned in the rotating shaft, and this double bearing frame is by extending on the plane connecting portion tangent bend elastic portion to be arranged; And comprise that four roads are positioned at the oil duct on elasticity of flexure portion and the medial surface that rotating shaft contacts, is characterized in that:

The middle twice of described four road oil ducts are from the approaching long arc shape oil duct in middle mind-set edge, and outside twice are the short oil ditch and are coated in the middle of the above-mentioned middle twice long arc shape oil duct.

Wherein, four road oil ducts are arranged for equidistant at the center line that its each central point connects into.

The utility model beneficial effect: by said structure, the utility model makes oil duct have from the profit function can not form accumulation, and has the richer effect of oil storage.

Below, architectural feature of the present utility model will be described in detail according to the embodiment shown in the drawing and use effect.

Description of drawings

Fig. 1: be the exploded view that the utility model double bearing frame is used for pivot,

Fig. 2: be the constitutional diagram of Fig. 1,

Fig. 3: be the cross section view of Fig. 2,

Fig. 4: be the allocation plan of the utility model oil duct,

Fig. 5: the oil duct allocation plan that is known techniques.

The specific embodiment

See also Fig. 1 to Fig. 3, double bearing frame 10 of the present utility model is assembled in the rotating shaft 20, can be at the pivot 1 of any angle orientation to form one.Wherein double bearing frame 10 is constituted by extending tangent bend elastic portion 12 on the plane connecting portion 11; Utilize this tangent bend elastic portion 12 closely to be sleeved in the rotating shaft 20, make that pivot 1 can be in arbitrary angle orientation.

The medial surface that contacts with rotating shaft 20 in elasticity of flexure portion 12 is provided with oil duct 13, utilizes oil duct 13 to store lubrication oil, when 20 rotations of double bearing frame 10 phase countershafts, can reach the lubricated voluntarily effect of profit certainly.

It should be noted that the particular design of the utility model at oil duct, referring to Fig. 4, plan view for 12 expansion of elasticity of flexure portion, on elasticity of flexure portion 12 and medial surface that rotating shaft 20 contacts, form four road oil ducts 131,132,133 and 134, on the centre line L that its each central point connects into, be about equidistant arrangement; Wherein, middle twice are from the approaching long arc shape oil duct 132 and 133 in middle mind-set edge, and outside twice are short oil ditch 131 and 134 and coated by middle twice long arc shape oil duct 132 and 133.

The utility model comprises that four road oil ducts 131,132,133 and 134 do not intersect each other, and can not produce the lubrication oil packing phenomenon, make elasticity of flexure portion 12 and rotating shaft 20 contact surfaces when double bearing frame 10 rotates, produce uniformly from moistening function, and the total length of mat four road oil ducts increases than traditional X-ray shape person, make oil storage richer, to increase lubricant effect.

Oil duct design after the utility model improvement only is preferred embodiment of the present utility model shown in the drawing, and the simple and easy or equivalent change of making according to the utility model technological thought all belongs in the utility model scope of patent protection in every case.

Claims (2)

1. a pivot is with the oil duct structure of double bearing frame, and this double bearing frame is positioned in the rotating shaft, and this double bearing frame is by extending on the plane connecting portion tangent bend elastic portion to be arranged; And comprise that four roads are positioned at the oil duct on elasticity of flexure portion and the medial surface that rotating shaft contacts, is characterized in that:

The middle twice of described four road oil ducts are from the approaching long arc shape oil duct in middle mind-set edge, and outside twice are the short oil ditch and are coated in the middle of the above-mentioned middle twice long arc shape oil duct.

2. according to the oil duct structure of the described pivot of claim 1 with double bearing frame, it is characterized in that: four road oil ducts are arranged for equidistant at the center line that its each central point connects into.

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