CN201561067U

CN201561067U - Pivot structure

Info

Publication number: CN201561067U
Application number: CN2009201779154U
Authority: CN
Inventors: 彭靖媛
Original assignee: Heqi Co Ltd
Current assignee: Billion Xuan Enterprise Co., Ltd.
Priority date: 2009-09-21
Filing date: 2009-09-21
Publication date: 2010-08-25
Anticipated expiration: 2019-09-21

Abstract

A pivot structure mainly comprises a shaft part and two bearing bases. A universal head is disposed at an appropriate position of the shaft part, outer sides of the bearing bases are fixed on the inner side of a barrel portion, the center of each bearing base is provided with a penetrating hole for the shaft part to penetrate through, a movable clearance with an annular space is arranged between the inner lateral surface of each penetrating hole and the outer lateral surface of the shaft part, the inner side of one end of each penetrating hole is expanded to form an inwards concave bearing pit, the two bearing pits are used for encircling the universal head while the shaft part penetrates through the bearing base, and then the universal head and the bearing pits can universally rotate relatively, thereby eliminating assembly errors so as to smoothly assemble the pivot structure by aid of automatic position adjustment of the shaft part.

Description

Pivot structure

Technical field

The utility model is relevant for a kind of pivot structure, but promptly forms the technical field of pivot with mechanical component, such as being applied in the indoor sport mechanism joint structure between treadle and its wheel body.

Background technique

Mechanisms such as exercycle by sports equipment, driving to cause the mechanism of rotation for hand or foot, mostly be to be provided with pivot structure at mechanical rod member interlock joint, such as shown in Figure 7, its normally one (60) be set with bearing (62) in outer side surface, bearing (62) outer side surface comes suit for urceolus (61), and an end group of axle (60) fastens a fixed rotating driven member (63).

But axle (60) and bearing (62), assembled relation between urceolus (61) three is each other and closely cooperates, the horizontal straigheness of therefore working as axle (60), if with the axle of the pivot structure of other position, keep parallel to each other, then in the existing structure, because axle (60) and bearing (62), between urceolus (61) inner side surface, have no activity space and can eliminate the assembly error clearance by adjustment, therefore between two groups of pivot structures, there is the error clearance of assembling parallelism (or perpendicularity), as be untreated, will produce the assembling difficulty, even the pivot structure of two opposite positions is difficult to successfully rotate synchronously.

The model utility content

Main purpose of the present utility model provides a kind of pivot structure, and it can eliminate the clearance that assembly error produces, and is adapted to parallelism and perpendicularity between each pivot structure.

In order to reach aforesaid purpose, the technological means that this creation is used is to provide a kind of pivot structure, and it comprises:

A part, this part is provided with a Universal-head in suitable place;

At least two bearings, this bearing is seat and be fixed in the inboard of a portion ringwise, this bearing is provided with a perforation that supplies this part to stretch through, form the movable crack of a space shape between this perforation inner side surface and this part outer side surface, ring side in this perforation at one end, the pod of formation indent arc, respectively this pod of using this two bearing is relative, in order to being surrounded on this Universal-head, rotate for being relative to universal between this Universal-head and this pod.

Therefore according to the technological means of this creation, the effect brief description that this creation can obtain is following listed:

This creation mainly is in pivot structure, in the middle of axle part and the tube portion, be to see through Universal-head and bearing, allow the bearing outside be fixed in portion's inner side surface, and the axle part is equipped with Universal-head, being extended through a part through bearing utilizes two pods to surround Universal-head simultaneously, supplying Universal-head can be relative to universal with pod rotates, the space that cooperates formation activity crack between the bearing inboard and the axle part outside simultaneously, the space of universal rotation is provided, allows a part or tube portion, allow bearing or spool part in response to assembling needs, universal rotation via Universal-head and pod, be able to effectively automatically adjusted position, thereby eliminate assembly error, allow everywhere pivot structure is installed, can regulate levelness or perpendicularity are assembled smoothly and are finished mechanism each other.

Description of drawings

Understand for ease of the utility model being had further, existing as follows with accompanying drawing detailed description the utility model:

Fig. 1, the stereogram of this creation fitness equipments preferred embodiment.

Fig. 2, the three-dimensional element exploded view of this creation preferred embodiment.

Fig. 3, the assembled sectional view of this creation preferred embodiment.

Fig. 4, this a creation Universal-head and an assembled sectional view of another preferred embodiment of part configuration.

Fig. 5, this creates the three-dimensional element exploded view of another place's pivot structure preferred embodiment.

Fig. 6, the assembled sectional view of this creation Fig. 5 preferred embodiment.

Fig. 7, existing pivot structure sectional view.

Embodiment

Please referring to Fig. 1, the pivot structure of this creation is to be applicable to that sports equipment (10) is an example, pivot structure can be set throughout, as between trailing wheel (11) and foot treadle (13), a pivot structure (12) being set, and between foot treadle (13) and manual rod (15) end, another pivot structure (14) is set, and both pivot structures (12) (14) have the technological means of intercommunity.

Please referring again to Fig. 1,2,3, it illustrates set pivot structure (12) between trailing wheel (11) and the foot treadle (13).It mainly comprises a part (20), a Universal-head (30), two bearings (40).This part (20) is at one end to form the less axle head of external diameter (21), and this axle head (21) end face is established the endoporus (211) of an internal thread, comes screw lock to cooperate a bolt (22); And this Universal-head (30) is to be spheroid, central authorities run through a counter sink (31) are set, holding wherein to cooperate an axle head (21) that supplies axle part (20) to enter, can not allow axle head (21) pass counter sink (31), thereby fitted bolt (22) is entered by counter sink (31) and screw lock is fixed in the axle head (21) of a part (20); And

This bearing (40) is the configuration that is a pair of, each bearing (40) all ringwise the seat, outer side surface forms several and is the continuous tooth (41) of stinging, one end forms the bigger antelabium (42) of external diameter, bearing (40) central authorities form the perforation (43) that stretches through with loose fit for axle part (20) together, there is the movable crack (431) of a ring between perforation (43) inner side surface and axle part (20) outer side surface, perforation (43) is in ring side in one of antelabium (42) end, form the pod (44) of the semicircle scope of indent, when therefore the pod (44) of two bearings (40) is relative, be able to be enclosed in the left side of Universal-head (30), the right side allows the Universal-head (30) be that fulcrum is universal swing with the pod (44) of bearing (40).

Therefore the pivot structure (12) of this creation is installed on the enforcement state of trailing wheel (11) and foot treadle (12), it promptly is the tube portion (131) of fixing a hollow at the end of foot treadle (12), supply two bearings (40) and axle part (20) thereof in the tube portion (131), in Universal-head (30) is installed on together, utilize tube portion's (131) madial wall and bearing (40) outer side surface packing to fix, because bearing (40) outer side surface is established tool and is stung tooth (41), can sting the madial wall that tube portion (131) is lived in embedding so sting tooth (41), therefore reach the purpose that bearing (40) is fixed in a portion (131), and the antelabium (42) of two bearings (40) fastens just to the collar extension (132) of tube portion (131) inboard, two ends;

Stretch out bearing (40) one ends as for axle spare (20), be arranged with lining (25) in the outside, lining (25) is set in the wheel cap (111) of trailing wheel (11), make a part (20) pass lining (25) and combine with wheel cap (111) and be fixed in driven member (16), driven member (16) promptly is the some of rotatable trailing wheel.

Therefore to utilize its Universal-head (30) be fulcrum to an axle part (20), add the space that movable crack (431) are arranged between a part (20) outside and perforation (43) inboard, make axle part (20) be able to Universal-head (30) and be the universal rotation of fulcrum at pod (44), adjustment activity under the scope of movable crack (431) is to eliminate, to remedy the tolerance clearance of assembly error.

In like manner, the embodiment of Fig. 4 is that a part (20) is set to one with Universal-head (301), equally also reaches a part (20), see through Universal-head (301) and be the universal rotation of fulcrum, allow a part (20) fine-tuning activity in the scope of movable crack (431) at pod (44).

In addition, Fig. 5,6 embodiment please cooperate together referring to Fig. 1, are arranged between foot treadle (13) and the manual rod (15), and the pivot structure (14) of this creation also can be installed.Wherein, axle part (201) is the Universal-head (302) that is shaped in the neutral position, equally at axle spare (201) two ends, difference plug-in mounting one bearing (40), the pod (44) that utilizes two bearings (40) is respectively at left and right side, surround Universal-head (302) around, just in response to the structure of manual rod (15) with foot treadle (13), bearing (40) is to be installed on terminal tube portion (151) inboard of manual rod (15), remain bearing (40) outer side surface packing and be fixed in a portion (151) madial wall, make bearing (40) with tube portion (151), manual rod (15); Thereby axle part (201) is placed in U-shaped seat (130) scope of foot treadle (13) front end together with tube portion (151), and the mat bolt is by U-shaped seat (13) two free sides and the two ends of fixed shaft (201); Use manual rod (15) and drive bearing (40), making bearing (40) is fulcrum with axle spare (201), utilizes pod (44) to swing along Universal-head (302) side face.

Thus, no matter axle part (20) or (201) is in response to the mounting point difference, and the fulcrum that has interlock or conduct to support, can both see through couple axle (20) (201) Universal-head (30) (302) is set, the pod (44) of cooperation Universal-head (30) (302) and bearing (40) is sphere and reclines, allow the spherical rotation amount of Universal-head (30) (302) and pod (44), be released to the space, movable crack (431) between a part (20) (201) and bearing (40) inboard, use the clearance of eliminating assembly error, automatic adjusted position, in other words, can guarantee pivot structure shown in the drawing (12) (14) horizontal straigheness between the two [certainly, the also perpendicularity of can regulate and other position pivot structure], getting tool in assembling nargin regulates effectiveness voluntarily and can produce more accurate, finish assembling smoothly apace, and then make manual rod (15) and the smooth and easy nothing of the interlock of foot treadle (14) interfere sense.

The foregoing description only is the technology and the effect thereof of this creation of illustrative, but not is used to limit this creation.Any ripe all can be in this technology personage under the situation of the know-why of this creation and spirit, the foregoing description is made amendment and changed, so the claim that the rights protection scope of this creation should be as described later is listed.

The primary clustering symbol description

(10) body-building apparatus (11) trailing wheel

(111) wheel cap

(12) (14) pivot structure

(13) pedal (15) hand lever

(131) (151) tube section

(132) collar extension (130) U-shaped seat

(16) driven member

(20) (201) axle spare (21) axle head

(211) endoporus (22) bolt

(25) lining

(30) (301) (302) Universal-head

(311) counter sink

(40) bearing (41) is stung tooth

(42) antelabium (43) perforation

(431) movable crack (44) pod

(60) axle (61) urceolus

(62) bearing (63) driven member

Claims

1. pivot structure is characterized in that: comprise:

A part, this part is provided with a Universal-head in suitable place;

2. pivot structure as claimed in claim 1 is characterized in that: described Universal-head is spherical, and the pod of bearing is to be the indent semi-circular shape, stings tooth and be provided with continuously outside the bearing.

3. pivot structure as claimed in claim 1 is characterized in that: described Universal-head is to be integrally formed at a part.

4. pivot structure as claimed in claim 1, it is characterized in that: described axle part one end forms the less axle head of external diameter, this axle head end face is established the endoporus of an internal thread, Universal-head central authorities run through a counter sink are set, for the axle head of axle part enters holding wherein, screw lock is fixed in the axle head of a part by counter sink through bolt.

5. pivot structure as claimed in claim 2 is characterized in that: described bearing forms the bigger antelabium of external diameter in contrast to one of pod end.

6. pivot structure as claimed in claim 2 is characterized in that: side within the portion is fixed in the tooth packing of stinging of described bearing.