CN2081446U - Weigh bar shaft - Google Patents

Abstract

The utility model relates to a pivot shaft, particularly a pivot shaft structure which enables a pivoting component to maintain to be positioned at any angle between 30 DEG and 135 DEG. The utility model is characterized in that a supporting frame is fixed on a fixing component, and a shaft sleeve is embedded and sheathed on the supporting frame, wherein, a rotating shaft is sheathed in the shaft sleeve, one end of the rotating shaft can be connected to the pivoting component, and the other end is sheathed with a spring and a positioning shim; the spring is compressed by a screw nut, one end of the spring is fixed on the supporting frame, and the other end is clamped with a convex block formed on the positioning shim. The pivot shaft structure causes the rotating shaft to be positioned at any angle between 30 DEG and 135 DEG to apply force on the supporting frame by the propping tension force of the spring.

Description

Weigh bar shaft

The utility model relates to a kind of pivot, the particularly a kind of pivot that can place restrictions on the location between 30 degree are spent to 135 arbitrarily by formations such as set rotating shaft, spring and locating washer on the bolster.

Because the progress of computer technology, use the personage of computer processing transactions that the trend that increases is day by day arranged, simplifying of the enhancing of computer function and unitary construction, be the continuous target of pursuing of industrial quarters, and PC has been developed to so-called kneetop computer more recently, and its exquisite volume makes that common people can be in indoor or go out to portably use.Being configured to ask of this kneetop computer effectively reduces its volume, and all members must be laid in very limited space and finish, and are example with the computer screen, promptly are arranged in cap inside, when cap lifts when opening to suitable angle, can provide a Presentation Function.But the lifting of this cap opened the location and be there is no anyly for the structure that supports, and must realize simultaneously pivoting and props up the function of location by means of its pivot constructed with the housing pivot joint.

But existing all types of pivot structure, all only can be assembled between two members, and a functions of pivoting is provided, and can't be provided at the function of any opening angle location, so existing various pivot structure all is not suitable for use in the pivot joint and the location of the cap of kneetop computer.

Existing a kind of computer screen pivot structure as shown in Figure 5, its rotating shaft (40) that mainly on a fixing frame (4), is pivoted, one end of this rotating shaft (40) is in order to be connected in cap, be folded with shell fragment (41) between the wall of its other end and fixing frame (4), it is concavo-convex wavy that this shell fragment (41) surface is, when rotating shaft (40) turns to suitable angle, with and fixing frame (4) between set shell fragment (41) level to support, rotating shaft (40) promptly is positioned on this angle.Above-mentioned structure still has its disappearance to exist, the rotating shaft of this hinge mechanism partly is to use the pivot of control cap, cap itself has suitable weight, and the computer screen that is provided with thereon, more increased the weight of its deal, this cap location with suitable weight, propping up only by shell fragment, its stable difficulty is attained ideal, this shell fragment also will produce wear phenomenon after a period of time uses again, and cause the lax of pivot location, therefore, the above-mentioned hinge mechanism of commonly using has its shortcoming that can't overcome to exist in textural.

In view of this, the purpose of this utility model promptly is to provide a kind of and can realizes pivoting and at the suitable pivot structure of the function of angular positioning, can't be to overcome existing pivot structure in the deficiency of suitable angular positioning, particularly providing a kind of can spend to the pivot structure of arbitrarily angled upper limit fastening position between 135 degree, for pivot that applies to the kneetop computer screen and location 30.

Pivot of the present utility model, it mainly comprises bolster, axle sleeve, rotating shaft, spring, locating washer and nut;

Described bolster periphery and side are formed with fixed hole respectively, and its side has been vertically formed fixed base, and fixed base is provided with an axle sleeve, and axle sleeve is hollow shape, the one end opening be in order to the conical surface of rotating shaft pivot cover;

Form a taper beveled edge corresponding to the axle sleeve opening in the described rotating shaft, be placed in the axle sleeve in order to pivot, and be concaved with oil groove on this beveled edge, this beveled edge rear end is a cylindrical body again, and the cylindrical body rear end then forms a screw rod;

Be arranged with a spring and a location pad on the cylindrical body of rotating shaft respectively, one end of spring is fixed on the fixed hole of fixed base below, its the other end is jam formed flange on described locating washer then, on the screw rod of rotating shaft in conjunction with one in order to the nut of length of spring compressed between locating washer and fixed base.

Further specify structure characteristic of the present utility model and purpose thereof below in conjunction with accompanying drawing.

Fig. 1 is a schematic appearance of the present utility model;

Fig. 2 is a decomposing schematic representation of the present utility model;

Fig. 3 is the part generalized section after the utility model combination;

Fig. 4 is used in enforcement phase diagram on the kneetop computer cap for the utility model;

Fig. 5 is for commonly using the pivot schematic appearance.

Please at first consult shown in Fig. 1,2, structure of the present utility model mainly is to be formed with fixed hole (11), (12) respectively in a bolster (1) periphery and side, its side has been vertically formed fixed base (10) again, be formed with axis hole (13) on the degree of fixation (10), be arranged with an axle sleeve (2) on it, axle sleeve (2) is hollow shape, the one end is formed with recessed edge (20), this recessed edge (20) of mat is embedded in the axis hole (13) on the fixed base (10), axle sleeve (2) the other end opening inboard then is provided with a conical surface (25), in order to a rotating shaft (21) pivot cover.Rotating shaft (21) one ends are the combination end (210) of diameter broad, and should combination hold the end of (210) to form incisxal edge (211), can use with pivot member to be connected.Contracting in this incisxal edge (211) the inner forms a taper beveled edge (212) corresponding to the inboard conical surface of axle sleeve (2) opening (25), is placed in the axle sleeve (2) with pivot, then is provided with recessed oil groove (216) on this beveled edge (212), can ccontaining therein lubricant oil.This beveled edge (212) rear end is a cylindrical body (213), and cylindrical body (213) rear end then forms a screw rod (215), and this cylindrical body (213) is with screw rod (215) joining place and be formed with grooving (214).

And for example shown in Figure 3, rotating shaft (21) pivot is placed in the axle sleeve (2), be arranged with a spring (22) and a location pad (23) on its cylindrical body (213) respectively, one end of spring (22) is fixed on the fixed hole (12) of fixed base (10) below, its the other end then jam is gone up the flange (230) that forms in locating washer (23), locating washer (23) then is embedded in the grooving (214) on rotating shaft (2) cylindrical body (213), in order to spring (22) is compressed between locating washer (23) and the fixed base (10), and mat spring (22) countershaft (21) produces powerful axial tension to the screw rod (215) of rotating shaft (21) in conjunction with a nut (24).This nut (24) inner edge rear end is provided with packing ring (240), and it is screwed on the screw rod (215) through brute force, make nut fastening on it and unexpected compression elasticity because of spring (22) relax.

Locating washer (23) is by the jam of spring (22), under normality, make this rotating shaft (21) be a suitable tilt angle, and the pivot member in rotating shaft (21) is when being closed, locating washer (23) is pressure spring (22) one ends, make it constitute a back stretch, when pivot member was disengaged closure, this back stretch of mat can make pivot member automatically spring open and lift to its original angle.

Relevant the utility model is used in the enforcement state on the cap of kneetop computer, promptly as shown in Figure 4, hinge mechanism of the present utility model is arranged on computer casing (3) and computer screen (30) pin joint part, the computer screen (30) that connects when this rotating shaft (21) is desired to lift when opening the location, because of rotating shaft (21) is to close with its taper beveled edge (211) and pivot cover (2) conical surface inner edge pivot, so it can not be subjected to the axial tension influence of spring (22) when pivoting, with rotating shaft (21) is the center, rotates arbitrarily between 135 degree at 30 degree; Wait to lift and open to suitable angle, spring (22) is to stay on fixed base (10) with it to go up the reaction force that produces, countershaft (21) forms powerful drawing, this can be positioned on this angle by the rotating shaft (21) of drawing and no longer mobile, so computer screen (30) can be placed restrictions on and is positioned 30 degree arbitrarily angled between spending with 135.

By the above as can be known the utility model possess at least following advantage:

1. hinge mechanism of the present utility model, its main location structure are the springs that is that compression arranges between holder and nut, and this constructs mat to such an extent that make this spring provide simultaneously back stretch that cap lifts on automatically and countershaft to consist of pulling force and locate the function of cap.

2. the power of the propping up countershaft of the utility model mat spring produces the drawing location, and the elastic force that commonly use by single shell fragment provides the location more firm effectively.

3. the locate mode of the utility model hinge mechanism does not have as commonly uses pivot structure and located by the friction that the elastic force of shell fragment produces, so can because of friction consume impact location steadiness, can not keep the high stability of this cap location.

Claims (1)

1, a kind of pivot, it mainly comprises bolster, axle sleeve, rotating shaft, spring, locating washer and nut, it is characterized in that:

Bolster periphery and side are formed with fixed hole respectively, and its side has been vertically formed fixed base, and fixed base is provided with an axle sleeve, and axle sleeve is hollow shape, the one end opening be in order to the conical surface of rotating shaft pivot cover;

Form a taper beveled edge corresponding to the axle sleeve opening in the described rotating shaft, be placed in the axle sleeve in order to pivot, and be concaved with oil groove on this beveled edge, this beveled edge rear end is a cylindrical body again, and the cylindrical body rear end then forms a screw rod;

Be arranged with a spring and a location pad on the cylindrical body of rotating shaft respectively, one end of spring is fixed on the fixed hole of fixed base below, its the other end is jam formed flange on described locating washer then, on the screw rod of rotating shaft in conjunction with one in order to the nut of length of spring compressed between locating washer and fixed base.

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