CN204606119U - Crank pedal fixed sturcture - Google Patents
Crank pedal fixed sturcture Download PDFInfo
- Publication number
- CN204606119U CN204606119U CN201520290028.3U CN201520290028U CN204606119U CN 204606119 U CN204606119 U CN 204606119U CN 201520290028 U CN201520290028 U CN 201520290028U CN 204606119 U CN204606119 U CN 204606119U
- Authority
- CN
- China
- Prior art keywords
- hole
- adapter shaft
- crank
- fixed sturcture
- pedal fixed
- 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.)
- Expired - Fee Related
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 32
- 230000001419 dependent effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 241000168254 Siro Species 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- Mechanical Control Devices (AREA)
Abstract
The utility model discloses a kind of crank pedal fixed sturcture, comprise crank, stretcher, and screw tightening, described crank is provided with junction surface, junction surface is sequentially provided with connecting bore and through hole, connecting bore and through hole are mutually through, stretcher is provided with an adapter shaft, an internal thread hole is provided with in adapter shaft, described adapter shaft stretches in through hole, the threaded shank of screw tightening is passed junction surface and is spirally connected with the internal thread hole of adapter shaft, the outer peripheral face of adapter shaft and the inner peripheral surface interference fit of through hole, the outer peripheral face of adapter shaft is provided with outer antiskid surface, on the inner peripheral surface of through hole, corresponding outer antiskid surface is provided with interior antiskid surface, this kind of crank pedal fixed sturcture, have structure simple, long service life, can effectively prevent the adapter shaft of stretcher from skidding, and ensures the advantages such as stable transmission.
Description
Technical field
The utility model relates to a kind of crank pedal fixed sturcture, particularly relates to a kind of crank pedal and improves fixed sturcture.
Background technology
Existing crank pedal fixed sturcture, as: the crank pedal fixed sturcture of bicycle, see China Patent No.: 201020285117.6, authorized announcement date: on March 16th, 2011, disclose a kind of bicycle pedal fixing structure, it comprises crank, and crank is provided with a junction surface, taper hole and a back taper hole before described junction surface is sequentially provided with one, and described front taper hole and back taper hole interpenetrate; One pedal, pedal is provided with a junction, and is provided with the tapering matched with described back taper hole around described connecting portion, is provided with an internal thread hole in described connecting portion, and described internal thread hole leading portion is provided with tapering, and described negative thread screw front end is provided with tapering; And a screw tightening, comprise a head and with tapering and have externally threaded bar portion, the bar portion of wherein said screw tightening is by junction surface, and spiral shell is placed in the negative thread screw of described connecting portion, uses and is connected with described pedal by described crank.
But, above-mentioned stretcher fixed sturcture, still have the following disadvantages: (1) user is when driving bicycle, stretcher connecting portion easily skids in the back taper hole at junction surface, both can relatively rotate, connecting portion and back taper hole matching loose, cause stretcher and crank drive unstable, causes rider to drive having some setbacks, uncomfortable; If Long-Time Service, the inner peripheral surface serious wear of connecting portion outer peripheral face and back taper hole, stretcher very easily damages, and connecting portion, under the effect of reverse stress, even easily causes overall fracture by fatigue, thus shortens the service life of stretcher.
Utility model content
The purpose of this utility model is that the deficiency overcoming the existence of above-mentioned prior art exists, then provide a kind of structure simple, long service life, effectively can prevent the adapter shaft of stretcher from skidding, can ensure again the crank pedal fixed sturcture of stable transmission.
The purpose of this utility model is achieved in that
Crank pedal fixed sturcture, comprise crank, stretcher, and screw tightening, described crank is provided with junction surface, described junction surface is sequentially provided with connecting bore and through hole, described connecting bore and through hole are mutually through, described stretcher is provided with an adapter shaft, an internal thread hole is provided with in described adapter shaft, described adapter shaft stretches in through hole, the threaded shank of screw tightening is passed junction surface and is spirally connected with the internal thread hole of adapter shaft, the outer peripheral face of described adapter shaft and the inner peripheral surface interference fit of through hole, the outer peripheral face of described adapter shaft is provided with outer antiskid surface, on the inner peripheral surface of described through hole, corresponding outer antiskid surface is provided with interior antiskid surface.
The utility model can also do following further improvement.
As further scheme, described inside and outside antiskid surface is all planes, and inside and outside antiskid surface cooperatively interacts, make originally to be can not skid between the adapter shaft of shaft hole matching and through hole, cannot relatively rotate, thus it is tightr that stretcher is connected with crank, transmission is more stable again.
As scheme more specifically, described through hole is taper hole, and described adapter shaft is one with the circular shaft of tapering.When described adapter shaft stretches into after in through hole, the outer peripheral face of adapter shaft and the inner peripheral surface interference fit of taper hole, make adapter shaft be connected with taper hole interference, and stretcher is connected tightr with crank, transmission is more stable.
On the outer peripheral face of described adapter shaft, opsition dependent symmetric mode is provided with the outer antiskid surface of even number, thus make the uniform force between adapter shaft and through hole, stress is concentrated and causes adapter shaft or through hole to occur fracture effectively to avoid both local locations to occur, and shortens the service life of stretcher.
As another embodiment, the outer peripheral face of described adapter shaft is provided with several outer antiskid surfaces along its circumferential surface direction.
Interior hexagonal mouth is arranged in the front end of described internal thread hole, is deeply put and is fixed in the adapter shaft of stretcher, and impel stretcher and crank compact siro spinning technology during screw tightening locking.
The beneficial effects of the utility model are as follows:
(1) crank pedal fixed sturcture of the present utility model, by arranging outer antiskid surface and interior antiskid surface respectively on the outer peripheral face of stretcher adapter shaft and the inner peripheral surface of crank through hole, outer antiskid surface and interior antiskid surface cooperatively interact, thus make originally to be can not skid between the adapter shaft of shaft hole matching and through hole, cannot relatively rotate again, and then it is tightr to make stretcher be connected with crank, transmission is more stable, and it is more comfortable that user drives bicycle.More have plenty of, the degree of wear between the outer peripheral face of adapter shaft and the inner peripheral surface of crank through hole weakens, thus increases the service life.
Accompanying drawing explanation
Fig. 1 is the partition structural representation of the utility model crank pedal fixed sturcture.
Fig. 2 is the structural representation of another angle of Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram at A place in Fig. 2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment one, see shown in Fig. 1 to Fig. 3, a kind of crank pedal fixed sturcture, as, automatic vehicle crank pedal fixed sturcture, it comprises crank 1, stretcher 2, and screw tightening 3, described crank 1 is provided with junction surface 11, described junction surface 11 is sequentially provided with connecting bore 112 and through hole 110, described connecting bore 112 and through hole 110 mutually through, described stretcher 2 is provided with an adapter shaft 21, an internal thread hole 23 is provided with in described adapter shaft 21, described adapter shaft 21 stretches in through hole 110, the threaded shank 31 of screw tightening 3 is passed junction surface 11 and is spirally connected with the internal thread hole 23 of adapter shaft 21, the outer peripheral face of described adapter shaft 21 and the inner peripheral surface interference fit of through hole 110, the outer peripheral face of described adapter shaft 21 is provided with outer antiskid surface 211, on the inner peripheral surface of described through hole 110, corresponding outer antiskid surface 211 is provided with interior antiskid surface 111.
Technical scheme as the utility model is more specifically put:
Described inside and outside antiskid surface 111,211 is all planes; Through hole 110 is taper holes, described adapter shaft 21 is one with the circular shaft of tapering, when described adapter shaft 21 stretches into after in through hole 110, the outer peripheral face of adapter shaft 21 and the inner peripheral surface interference fit of taper hole, adapter shaft is connected with taper hole interference, stretcher is connected tightr with crank, transmission is more stable.
On the outer peripheral face of described adapter shaft 21, opsition dependent symmetric mode is provided with the outer antiskid surface 211 of even number; Certainly, also another program can be adopted; That is: along its circumferential surface direction, by all mode being provided with several outer antiskid surfaces 211 on the outer peripheral face of described adapter shaft 21.
Wherein, in the present embodiment, as better scheme, interior hexagonal mouth 22 is arranged in the front end of described internal thread hole 23, to impel stretcher and crank compact siro spinning technology.
Claims (7)
1. crank pedal fixed sturcture, comprise crank (1), stretcher (2), and screw tightening (3), described crank (1) is provided with junction surface (11), described junction surface (11) is sequentially provided with connecting bore (112) and through hole (110), described connecting bore (112) and through hole (110) mutually through, described stretcher (2) is provided with an adapter shaft (21), an internal thread hole (23) is provided with in described adapter shaft (21), described adapter shaft (21) stretches in through hole (110), the threaded shank (31) of screw tightening (3) is spirally connected through junction surface (11) and with the internal thread hole (23) of adapter shaft (21), it is characterized in that: the outer peripheral face of described adapter shaft (21) is provided with outer antiskid surface (211), on the inner peripheral surface of described through hole (110), corresponding outer antiskid surface (211) is provided with interior antiskid surface (111).
2. crank pedal fixed sturcture according to claim 1, is characterized in that: described inside and outside antiskid surface (111,211) is all planes.
3. crank pedal fixed sturcture according to claim 1 or 2, is characterized in that: described through hole (110) is taper hole, and described adapter shaft (21) is one with the circular shaft of tapering.
4. crank pedal fixed sturcture according to claim 3, is characterized in that: on the outer peripheral face of described adapter shaft (21), opsition dependent symmetric mode is provided with the outer antiskid surface (211) of even number.
5. crank pedal fixed sturcture according to claim 3, is characterized in that: the outer peripheral face of described adapter shaft (21) is provided with several outer antiskid surfaces (211) along its circumferential surface direction.
6. crank pedal fixed sturcture according to claim 3, is characterized in that: hexagonal mouth (22) is arranged in the front end of described internal thread hole (23).
7. crank pedal fixed sturcture according to claim 3, is characterized in that: the outer peripheral face of described adapter shaft (21) and the inner peripheral surface interference fit of through hole (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290028.3U CN204606119U (en) | 2015-05-07 | 2015-05-07 | Crank pedal fixed sturcture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290028.3U CN204606119U (en) | 2015-05-07 | 2015-05-07 | Crank pedal fixed sturcture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204606119U true CN204606119U (en) | 2015-09-02 |
Family
ID=53958690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520290028.3U Expired - Fee Related CN204606119U (en) | 2015-05-07 | 2015-05-07 | Crank pedal fixed sturcture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204606119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380338A (en) * | 2017-08-11 | 2017-11-24 | 谢金龙 | Assembling structure of pedal and crank |
| TWI627099B (en) * | 2017-07-28 | 2018-06-21 | Xie Jin Long | Assembly structure of pedal and crank |
-
2015
- 2015-05-07 CN CN201520290028.3U patent/CN204606119U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI627099B (en) * | 2017-07-28 | 2018-06-21 | Xie Jin Long | Assembly structure of pedal and crank |
| CN107380338A (en) * | 2017-08-11 | 2017-11-24 | 谢金龙 | Assembling structure of pedal and crank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |