CN104401444A - Center shaft applicable to bicycle - Google Patents
Center shaft applicable to bicycle Download PDFInfo
- Publication number
- CN104401444A CN104401444A CN201410690002.8A CN201410690002A CN104401444A CN 104401444 A CN104401444 A CN 104401444A CN 201410690002 A CN201410690002 A CN 201410690002A CN 104401444 A CN104401444 A CN 104401444A
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- CN
- China
- Prior art keywords
- shaft part
- shaft
- circular
- spacing
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention provides a center shaft applicable to a bicycle. The center shaft comprises an outer sleeve, a left end cover, a right end cover, a left bearing, a right bearing, an outer shaft, an inner shaft, a compressing spring and an inner sleeve; the outer shaft is divided into an end part, a circular section and a square section; the inner shaft is divided into a circular limiting section, a square limiting section, an inner sleeve limiting section, a bearing limiting section and an end part; the inner shaft is mounted in the outer shaft and the inner sleeve by an embedding and sleeving manner; the circular limiting section is closely matched with a cylindrical cavity; the square limiting section is closely matched with a rectangular cavity. According to the center shaft applicable to the bicycle, two cranks can change in opposite angles; the bicycle can be compressed to be smaller in size during being folded, so that the convenience is brought to carry; in addition, the design is ingenious, and the size of the central shaft is unchanged.
Description
Technical field
The present invention relates generally to a kind of axis, is a kind of axis being applicable to bicycle in particular.
Background technology
Axis is the requisite part of bicycle, is contained on vehicle frame, for connecting the rotatable parts of left and right crank.At present, axis used in bicycle is a single shaft, and the crank being connected to the axis left and right sides cannot relatively rotate.In order to just with the carrying and depositing of bicycle, a lot of bicycle all adopts collapsible design, or in order to improve the practicality of bicycle, a lot of bicycle can realize several functions by mechanism alternation.Because crank has certain length, will bring a lot of problem if can not relatively rotate, this crank just requiring the axis left and right sides to connect can relatively rotate.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of axis being applicable to bicycle, and the crank that can realize the connection of the axis left and right sides relatively rotates.
For solving the problems of the technologies described above, the technical method that the present invention adopts is as follows:
Be applicable to an axis for bicycle, comprise outer sleeve, left end cap, right end cap, left bearing, right bearing, outer shaft, interior axle, Compress Spring and inner sleeve;
Described outer shaft is divided into outer shaft end, circular shaft part and square shaft part, and wherein outer shaft end is provided with knock hole; Be provided with circular cylindrical cavity in outer shaft end and circular shaft part, the cross-sectional plane of circular cylindrical cavity is circular; Square shaft part is provided with rectangular cavities, and the cross-sectional plane of rectangular cavities is rectangle; Nested on circular shaft part Compress Spring is installed;
Described interior axle is divided into circular spacing shaft part, square spacing shaft part, the spacing shaft part of inner sleeve, the spacing shaft part of bearing and interior shaft end, described interior axle is nested to be arranged in outer shaft and inner sleeve, circular spacing shaft part and circular cylindrical cavity closely cooperate, square spacing shaft part and rectangular cavities closely cooperate, and the spacing shaft part of inner sleeve and inner sleeve closely cooperate; Internal thread hole is provided with in interior shaft end;
Described outer shaft and interior axle are arranged in outer sleeve, and left end cap and right end cap are threaded connection the two ends at outer sleeve, and its inside fixedly mounts left bearing and right bearing respectively; The circular shaft part of outer shaft and the spacing shaft part of bearing of interior axle are fixedly mounted on left bearing and right bearing respectively.
Preferably, circular cylindrical cavity is provided with in circular spacing shaft part and square spacing shaft part, for alleviating the weight of interior axle.
The invention has the beneficial effects as follows:
Bicycle uses axis of the present invention, two crank change relative angles can be made, when bicycle is when folding, the less of the volume compression of bicycle is convenient for carrying; And axis design is ingenious, does not make the volume of axis increase.
Accompanying drawing explanation
Fig. 1 is the structural upright schematic diagram being applicable to the axis of bicycle of the present invention.
Fig. 2 is the structural upright schematic diagram after removing outer sleeve 1 in Fig. 1.
Fig. 3 is the structure cutaway view being applicable to the axis of bicycle of the present invention.
Fig. 4 is the structural upright schematic diagram after the axis being applicable to bicycle of the present invention loads onto left crank 10, right crank 11 and gear piece 12.
Fig. 5 is left crank 10 postrotational structural upright schematic diagram relative to right crank 11 in Fig. 4.
Fig. 6 is the structure cutaway view of outer sleeve 1 in Fig. 3.
Fig. 7 is the structural upright schematic diagram of left end cap 2 in Fig. 3.
Fig. 8 is the structure cutaway view of Fig. 7.
Fig. 9 is the structure cutaway view of right end cap 3 in Fig. 3.
Figure 10 is the structural upright schematic diagram of outer shaft 5 in Fig. 3.
Figure 11 is the structure cutaway view of Figure 10.
Figure 12 is the structure cutaway view of interior axle 6 in Fig. 3.
In figure: outer sleeve 1; Body 1-1; Left end negative thread 1-2; Right-hand member negative thread 1-3; Left end cap 2; Left cover through hole 2-1; Left cover cavity 2-2, left cover outside thread 2-3; Right end cap 3; Right cover through hole 3-1; Right cover cavity 3-2; Right cover outside thread 3-3; Compress Spring 4; Outer shaft 5; Outer shaft end 5-1; Circular shaft part 5-2; Square shaft part 5-3; Knock hole 5-4; Circular cylindrical cavity 5-5; Rectangular cavities 5-6; Interior axle 6; Circular spacing shaft part 6-1; Square spacing shaft part 6-2; The spacing shaft part 6-3 of inner sleeve; The spacing shaft part 6-4 of bearing; Interior shaft end 6-5; Circular cylindrical cavity 6-6; Internal thread hole 6-7; Inner sleeve 7; Left bearing 8; Right bearing 9; Left crank 10; Right crank 11; Gear piece 12.
Detailed description of the invention
Be applicable to an axis for bicycle, comprise outer sleeve 1, left end cap 2, right end cap 3, left bearing 8, right bearing 9, outer shaft 5, interior axle 6, Compress Spring 4 and inner sleeve 7;
Described outer shaft 5 is divided into outer shaft end 5-1, circular shaft part 5-2 and square shaft part 5-3, and wherein outer shaft end 5-1 is provided with knock hole 5-4; Be provided with circular cylindrical cavity 5-5 in outer shaft end 5-1 and circular shaft part 5-2, the cross-sectional plane of circular cylindrical cavity 5-5 is circular; Square shaft part 5-3 is provided with rectangular cavities 5-6, and the cross-sectional plane of rectangular cavities 5-6 is rectangle; Nested on circular shaft part 5-2 Compress Spring 4 is installed;
Described interior axle 6 is divided into circular spacing shaft part 6-1, square spacing shaft part 6-2, inner sleeve spacing shaft part 6-3, bearing spacing shaft part 6-4 and interior shaft end 6-5, described interior axle 6 is nested to be arranged in outer shaft 5 and inner sleeve 7, circular spacing shaft part 6-1 and circular cylindrical cavity 5-5 closely cooperates, square spacing shaft part 6-2 and rectangular cavities 5-6 closely cooperates, and the spacing shaft part 6-3 of inner sleeve and inner sleeve 7 closely cooperate; Internal thread hole 6-7 is provided with in interior shaft end 6-5;
Described outer shaft 5 and interior axle 6 are arranged in outer sleeve 1, and left end cap 2 and right end cap 3 are threaded connection at the two ends of outer sleeve 1, and its inside fixedly mounts left bearing 8 and right bearing 9 respectively; The circular shaft part 5-2 of outer shaft and the spacing shaft part 6-4 of bearing of interior axle 6 is fixedly mounted on left bearing 8 and right bearing 9 respectively.
Further, circular cylindrical cavity 6-6 is provided with in circular spacing shaft part 6-1 and square spacing shaft part 6-2, for alleviating the weight of interior axle 6.
Principle of work:
Under normal operation, outer shaft 5 is not by the effect of outside pulling force, and owing to being compressed the application force of spring 4, outer shaft 5 and interior axle 6 can nest together, and cannot relatively rotate.Now, be connected to the left crank 10 on outer shaft 5 and interior axle 6 and right crank 11, respectively in the both sides (as shown in Figure 4) of the axis of outer sleeve 1, can driven bicycle.When needs are folding or mechanism changes, are firmly pulled outwardly by outer shaft 5, the rectangular cavities 5-6 of outer shaft 5 is separated with the square spacing shaft part 6-2 of interior axle 6, then rotary outer spindle 5 is to suitable position.After removing pulling force, outer shaft 5 and interior axle 6 just can nest together under the application force of Compress Spring 4.Now, be connected to the left crank 10 on outer shaft 5, interior axle 6 and right crank 11, the homonymy (as shown in Figure 5) of the axis of outer sleeve 1 can be positioned at.Because the cross-sectional plane of the rectangular cavities 5-6 of outer shaft 5 and the square spacing shaft part 6-2 of interior axle 6 is rectangle and closely cooperates, must be noted that when rotating outer shaft 5, the angle that the mutually internal axle 6 of outer shaft 5 rotates is the integral multiple of 90, and such outer shaft 5 and interior axle 6 could nest together under the application force of Compress Spring 4.
The main body of outer sleeve 1 is body 1-1, for together with the support welding of bicycle, thus is fixed on bicycle by this axis.The cross-sectional plane of body 1-1 is annular arrangement, two ends are respectively equipped with left end negative thread 1-2 and right-hand member negative thread 1-3, wherein left end negative thread 1-2 is used for coordinating with the left cover outside thread 2-3 on left end cap 2, and right-hand member negative thread 1-3 is used for coordinating with the right cover outside thread 3-3 on right end cap 3.
Left end cap 2 is provided with left cover through hole 2-1, left cover cavity 2-2 and left cover outside thread 2-3, and wherein left cover through hole 2-1 is circular, is used for the circular shaft part 5-2 of logical outer shaft 5; Left cover cavity 2-2 is cylindrical, for installing left bearing 8; Left cover outside thread 2-3 is used for coordinating with the left end negative thread 1-2 on outer sleeve 1, thus is connected on outer sleeve 1 by left end cap 2.
Right end cap 3 is identical with left end cap 2, is provided with right cover through hole 3-1, right cover cavity 3-2 and right cover outside thread 3-3, and wherein right cover through hole 3-1 is circular, be used for logical in the spacing shaft part 6-4 of bearing of axle 6; Right cover cavity 3-2 is cylindrical, for installing right bearing 9; Right cover outside thread 3-3 is used for coordinating with the right-hand member negative thread 1-3 on outer sleeve 1, thus is connected on outer sleeve 1 by right end cap 3.
Compress Spring 4 is enclosed within the circular shaft part 5-2 of outer shaft 5, and one end of Compress Spring 4 heads on left bearing 8, and the other end heads on the shaft shoulder of outer shaft 5, can retrain outer shaft 5 and move.
Outer shaft 5 comprises outer shaft end 5-1, circular shaft part 5-2 and square shaft part 5-3, and wherein outer shaft end 5-1 is used for connecting left crank 10, which is provided with knock hole 5-4, is used for fixing left crank 10.The cross-sectional plane of outer shaft end 5-1 and circular shaft part 5-2 is circle, its inside is provided with circular cylindrical cavity 5-5, shape, the size of circular cylindrical cavity 5-5 are corresponding to the circle spacing shaft part 6-1 of interior axle 6, for being nested in circular cylindrical cavity 5-5 by spacing for circle shaft part 6-1.Square shaft part 5-3 is provided with rectangular cavities 5-6, and the shape of rectangular cavities 5-6 is rectangle, and its shape, size are corresponding to the square spacing shaft part 6-2 of interior axle 6, for being nested in rectangular cavities 5-6 by square spacing shaft part 6-2.When the circle spacing shaft part 6-1 of interior axle 6 and square spacing shaft part 6-2 is nested in the circular cylindrical cavity 5-5 of outer shaft 5 and rectangular cavities 5-6, outer shaft 5 and interior axle 6 are just connected as a single entity, and can not relatively rotate; When rectangular cavities 5-6 is separated with square spacing shaft part 6-2, outer shaft 5 and interior axle 6 can relatively rotate.
Interior axle 6 is made up of circle spacing shaft part 6-1, square spacing shaft part 6-2, inner sleeve spacing shaft part 6-3, bearing spacing shaft part 6-4 and interior shaft end 6-5, wherein the inside of circular spacing shaft part 6-1 and square spacing shaft part 6-2 is provided with circular cylindrical cavity 6-6, for alleviating the weight of interior axle 6.The cross-sectional plane of square spacing shaft part 6-2 is rectangle, and its shape, size are corresponding to the rectangular cavities 5-6 of outer shaft 5.Interior shaft end 6-5 cross-sectional plane be rectangle, for connecting right crank 11 and gear piece 12, which is provided with internal thread hole 6-7, for fixing right crank 11 and gear piece 12.
Claims (2)
1. be applicable to an axis for bicycle, it is characterized in that, comprise outer sleeve, left end cap, right end cap, left bearing, right bearing, outer shaft, interior axle, Compress Spring and inner sleeve;
Described outer shaft is divided into outer shaft end, circular shaft part and square shaft part, and wherein outer shaft end is provided with knock hole; Be provided with circular cylindrical cavity in outer shaft end and circular shaft part, the cross-sectional plane of circular cylindrical cavity is circular; Square shaft part is provided with rectangular cavities, and the cross-sectional plane of rectangular cavities is rectangle; Nested on circular shaft part Compress Spring is installed;
Described interior axle is divided into circular spacing shaft part, square spacing shaft part, the spacing shaft part of inner sleeve, the spacing shaft part of bearing and interior shaft end, described interior axle is nested to be arranged in outer shaft and inner sleeve, circular spacing shaft part and circular cylindrical cavity closely cooperate, square spacing shaft part and rectangular cavities closely cooperate, and the spacing shaft part of inner sleeve and inner sleeve closely cooperate; Internal thread hole is provided with in interior shaft end;
Described outer shaft and interior axle are arranged in outer sleeve, and left end cap and right end cap are threaded connection the two ends at outer sleeve, and its inside fixedly mounts left bearing and right bearing respectively; The circular shaft part of outer shaft and the spacing shaft part of bearing of interior axle are fixedly mounted on left bearing and right bearing respectively.
2. being applicable to the axis of bicycle as claimed in claim 1, it is characterized in that, being provided with circular cylindrical cavity in circular spacing shaft part and square spacing shaft part, for alleviating the weight of interior axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690002.8A CN104401444A (en) | 2014-11-25 | 2014-11-25 | Center shaft applicable to bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690002.8A CN104401444A (en) | 2014-11-25 | 2014-11-25 | Center shaft applicable to bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104401444A true CN104401444A (en) | 2015-03-11 |
Family
ID=52639137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410690002.8A Pending CN104401444A (en) | 2014-11-25 | 2014-11-25 | Center shaft applicable to bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104401444A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072867A (en) * | 2015-09-16 | 2015-11-18 | 衡阳泰豪通信车辆有限公司 | Machine cabinet mounting bracket mechanism |
| CN106347020A (en) * | 2015-07-13 | 2017-01-25 | Sram德国有限公司 | Hub for bicycle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB815772A (en) * | 1957-01-26 | 1959-07-01 | Oscar Stettler | Improvements in or relating to crank mechanisms for cycles |
| CN2494791Y (en) * | 2001-09-10 | 2002-06-12 | 陈祥超 | Reversing & spacing assembly for crank of wheeled vehicle |
| CN2542551Y (en) * | 2002-04-10 | 2003-04-02 | 苏州奔集动力有限公司 | Middle axle assembly of electric bicycle with torque sensing system |
| CN204021172U (en) * | 2014-09-09 | 2014-12-17 | 夏正付 | A kind of axis being applicable to bicycle |
-
2014
- 2014-11-25 CN CN201410690002.8A patent/CN104401444A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB815772A (en) * | 1957-01-26 | 1959-07-01 | Oscar Stettler | Improvements in or relating to crank mechanisms for cycles |
| CN2494791Y (en) * | 2001-09-10 | 2002-06-12 | 陈祥超 | Reversing & spacing assembly for crank of wheeled vehicle |
| CN2542551Y (en) * | 2002-04-10 | 2003-04-02 | 苏州奔集动力有限公司 | Middle axle assembly of electric bicycle with torque sensing system |
| CN204021172U (en) * | 2014-09-09 | 2014-12-17 | 夏正付 | A kind of axis being applicable to bicycle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347020A (en) * | 2015-07-13 | 2017-01-25 | Sram德国有限公司 | Hub for bicycle |
| CN106347020B (en) * | 2015-07-13 | 2021-02-09 | Sram德国有限公司 | Hub for a bicycle |
| CN105072867A (en) * | 2015-09-16 | 2015-11-18 | 衡阳泰豪通信车辆有限公司 | Machine cabinet mounting bracket mechanism |
| CN105072867B (en) * | 2015-09-16 | 2024-05-10 | 衡阳泰豪通信车辆有限公司 | Rack mounting bracket mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |
|
| WD01 | Invention patent application deemed withdrawn after publication |