CN103057652A - Crank and crankshaft mounting structure for mopeds - Google Patents
Crank and crankshaft mounting structure for mopeds Download PDFInfo
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- CN103057652A CN103057652A CN201310019269XA CN201310019269A CN103057652A CN 103057652 A CN103057652 A CN 103057652A CN 201310019269X A CN201310019269X A CN 201310019269XA CN 201310019269 A CN201310019269 A CN 201310019269A CN 103057652 A CN103057652 A CN 103057652A
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- crank shaft
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Abstract
The invention relates to a crank and crankshaft mounting structure for mopeds. The crank and crankshaft mounting structure for mopeds comprises a crankshaft and a crank and is characterized in that the end of the crankshaft, connected with the crank, is provided with a limit projection, the inner side of the limit projection is provided with a square part made on the crankshaft, the center of the square part is provided with a threaded mounting hole, the connecting end of the crank is provided with a square hole the same as the square part in shape, the inside of the square hole is provided with a channel concentric with the square hole, and a threaded connector matching with the threaded mounting hole is disposed in the channel. The crankshaft and the crank are locked and fixed through the threaded connector, and accordingly the defect that the traditional connection of left-hand and right-hand threads is inconvenient to recognize is avoided, errors in delivery are avoided, and installation needs no recognition. In addition, the crank and crankshaft mounting structure for mopeds has the advantages of simple structure, quickness and convenience in assembly, high bearing capacity, high universality, low cost, attractive appearance, high safety and the like.
Description
Technical field
The invention belongs to boosted vehicle crank and pedal interconnection technique field, particularly relate to the mounting structure of a kind of boosted vehicle crank and crank shaft.
Background technology
At present, traditional crank shaft is connected positive/negative thread with crank and connects, divide left and right sides pedal, be that left crank shaft is the derotation screw thread, the GB identification letter is " L ", and the right pedal axle is the dextrorotation screw thread, the GB identification letter is " R ", the crank hole of corresponding assembling then is the positive/negative thread pore structure of identical pitch, and this kind structure is in the Production and Packaging process, and two pedals have the wrong phenomenon of the same thread rotary orientation pedal of packing; The identification of needs left and right sides pedal and right-and-left threaded process are arranged aspect installation after sale, and also existing because of thread failure of having is difficult for the phenomenon that screws in; Aspect maintain and replace, bad one needs to buy a pair of, gives and sells and much the user brings more constant and worried.China Patent No. is 201020109679.5 disclosed " easily changing the formula footstep mechanism ", provide a kind of toggle-action lever lower end in corresponding pedal spindle assembling that one tapped bore is set, with threaded in the tapped bore one adapter sleeve is arranged, be provided with axially extending bore on its adapter sleeve, adapter sleeve left end external diameter is provided with screw thread, the adapter sleeve right-hand member radially is provided with blind hole, also is provided with for fastening fix screw in blind hole.This mechanism is owing to be provided with adapter sleeve and fix screw, and not only whole removal time is longer than tradition, and technique and complex structure, and cost increases, and intensity subtracts greatly.Along with the development of science and technology, be badly in need of at present providing a kind of cost low easily bicycle pedals quick for installation.
Summary of the invention
The present invention for solve the technical matters that exists in the known technology provide a kind of simple in structure, avoid traditional positive/negative thread to connect being not easy to identify, assemble the boosted vehicle crank efficient and convenient, safe and reliable, that commonality is good and the mounting structure of crank shaft.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is:
The mounting structure of a kind of boosted vehicle crank and crank shaft, comprise crank shaft and crank, it is characterized in that: described crank shaft and crank coupling end are provided with limit dais, the inboard of described limit dais is shaped with square body, the inner center of described square body is provided with threaded mounting hole, described crank bottom coupling end is provided with the square opening consistent with above-mentioned square body shape, the inboard of described square opening is provided with the groove concentric with square opening, and the threaded connector that cooperates with above-mentioned threaded mounting hole is installed in the described groove.
The present invention can also adopt following technical measures:
Described square body is with certain tapering, and the described square opening that cooperates with this square body is with identical tapering.
Described threaded connector adopts cylindrical interior six square bolts.
The column part of described cylindrical interior six square bolts is contained in the groove.
Described groove is identical with the shape of the column part of cylindrical interior six square bolts.
Advantage and good effect that the present invention has are:
1, in packing aspect installation, under the present invention pedal regardless of about, avoided pedal identification difficult and take phenomenon by mistake.
2, aspect production and transport, crank shaft bearing is square inner bolt hole structure under the present invention, anti-extruding, and easy damaged does not provide cost savings, and has reduced reject rate.
3, in mechanical properties, because six circumference column type high-carbon screws in the employing standard, carrying torsion is large, during installation and removal screw and assembling square hole be difficult for damaged, assembling easily, high safety.
4, aspect installation, because six square-cylindrical high-carbon screws in the employing standard are conducive to mechanization and load and unload fast, increased mechanical strength.
5, aspect maintain and replace, bad one changes one, has avoided traditional evil idea one need to buy a pair of phenomenon, and commonality is good, has saved unnecessary expenditures.
6, aspect visual angle and outward appearance, because six square-cylindrical high-carbon screws in the employing standard are processed by electroplating surface, all do not expose the more aobvious luxurious top grade of outward appearance after assembling with crank.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is three-dimensional exploded view of the present invention.
Among the figure: 1, crank shaft; 100, limit dais; 101, square body; 102, threaded mounting hole; 2, crank; 201, square opening; 202, groove; 3, threaded connector.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1 and Fig. 2, the mounting structure of a kind of boosted vehicle crank and crank shaft, comprise crank shaft 1 and crank 2, described crank shaft 1 is provided with limit dais 100 with crank 2 coupling ends, this limit dais plays double action, realize on the one hand excessively spacing when installing with crank, play on the other hand spacing when pedal is installed.Be shaped with square body 101 on the inboard crank shaft 1 of described limit dais, the inner center of described square body 101 is provided with threaded mounting hole 102, described crank 2 bottom coupling ends are provided with the square opening 201 consistent with above-mentioned square body 101 shapes, the inboard of described square opening 201 is provided with the groove 202 concentric with square opening, and the threaded connector 3 that cooperates with above-mentioned threaded mounting hole 102 is installed in the described groove 202.
For the fastness that better realizes being connected between crank shaft and the crank, described square body is with certain tapering, and the square opening of described and this square body cooperation is with identical tapering.
For the ease of dismounting and installation, improve aesthetic, described threaded connector adopts cylindrical interior six square bolts.After the installation, the column part of six square bolts is contained in the groove in cylindrical, and groove with cylindrical in the shape of column part of six square bolts identical, thereby avoid cylindrical in six square bolts be higher than the outside face of crank and the problems such as not attractive in appearance and potential safety hazard brought.
In sum, the present invention aspect installation, has avoided pedal identification difficult and take phenomenon by mistake in packing; Aspect production and transport, anti-extruding, easy damaged does not provide cost savings, and has reduced reject rate; In mechanical properties, the carrying torsion large, during installation and removal screw with the assembling square hole be difficult for damaged, high safety; Aspect installation, six square-cylindrical high-carbon screws in the employing standard are conducive to mechanization and load and unload fast; Aspect maintain and replace, bad one changes one, avoided parts of traditional evil idea just need to buy a pair of phenomenon, so commonality is good; Aspect visual angle and outward appearance, and do not expose the luxurious top grade of outward appearance after the crank assembling.
Although the above is described the preferred embodiments of the present invention by reference to the accompanying drawings; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (5)
1. the mounting structure of a boosted vehicle crank and crank shaft, comprise crank shaft (1) and crank (2), it is characterized in that: described crank shaft (1) is provided with limit dais (100) with crank (2) coupling end, the inboard of described limit dais (100) is shaped with square body (101), the inner center of described square body (101) is provided with threaded mounting hole (102), described crank (2) bottom coupling end is provided with the square opening (201) consistent with above-mentioned square body (101) shape, the inboard of described square opening (201) is provided with the groove concentric with square opening (202), and the threaded connector (3) that cooperates with above-mentioned threaded mounting hole (102) is installed in the described groove (202).
2. the mounting structure of boosted vehicle crank according to claim 1 and crank shaft is characterized in that: described square body (101) is with certain tapering, and the described square opening (201) that cooperates with this square body is with identical tapering.
3. the mounting structure of boosted vehicle crank according to claim 1 and 2 and crank shaft is characterized in that: six square bolts in described threaded connector (3) employing is cylindrical.
4. the mounting structure of boosted vehicle crank according to claim 3 and crank shaft is characterized in that: described cylindrical in the column part of six square bolts be contained in the groove (202).
5. the mounting structure of boosted vehicle crank according to claim 4 and crank shaft is characterized in that: described groove (202) with cylindrical in the shape of column part of six square bolts identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019269XA CN103057652A (en) | 2013-01-18 | 2013-01-18 | Crank and crankshaft mounting structure for mopeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019269XA CN103057652A (en) | 2013-01-18 | 2013-01-18 | Crank and crankshaft mounting structure for mopeds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103057652A true CN103057652A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310019269XA Pending CN103057652A (en) | 2013-01-18 | 2013-01-18 | Crank and crankshaft mounting structure for mopeds |
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| CN (1) | CN103057652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11987319B2 (en) | 2022-06-22 | 2024-05-21 | Royalbaby Cycle Beijing Co., Ltd. | Crank quick-connection structure, pedal assembly, and bicycle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189114Y (en) * | 1994-04-21 | 1995-02-08 | 吴涛 | Conjunction structure for crank of bottom bracket bearing |
| US5586472A (en) * | 1995-08-31 | 1996-12-24 | Lin; Wen-Hwa | Detachable bicycle pedal mounting structure |
| CN101885365A (en) * | 2009-05-11 | 2010-11-17 | 孙锡康 | Bicycle center shaft transmission device |
| CN203172834U (en) * | 2013-01-18 | 2013-09-04 | 天津雅迪实业有限公司 | Mounting structure of moped crank and pedal shaft |
-
2013
- 2013-01-18 CN CN201310019269XA patent/CN103057652A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189114Y (en) * | 1994-04-21 | 1995-02-08 | 吴涛 | Conjunction structure for crank of bottom bracket bearing |
| US5586472A (en) * | 1995-08-31 | 1996-12-24 | Lin; Wen-Hwa | Detachable bicycle pedal mounting structure |
| CN101885365A (en) * | 2009-05-11 | 2010-11-17 | 孙锡康 | Bicycle center shaft transmission device |
| CN203172834U (en) * | 2013-01-18 | 2013-09-04 | 天津雅迪实业有限公司 | Mounting structure of moped crank and pedal shaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11987319B2 (en) | 2022-06-22 | 2024-05-21 | Royalbaby Cycle Beijing Co., Ltd. | Crank quick-connection structure, pedal assembly, and bicycle |
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| C10 | Entry into substantive examination | ||
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| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: YUAN KAIJING Effective date: 20130701 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130701 Address after: 300401 double Town, Beichen District, Tianjin Applicant after: Tianjin Yadi Industrial Co., Ltd. Address before: 300401 double Town, Beichen District, Tianjin Applicant before: Tianjin Yadi Industrial Co., Ltd. Applicant before: Yuan Kaijing |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130424 |