CN217918274U - Structure for fixing connecting shaft to crank for pedal - Google Patents
Structure for fixing connecting shaft to crank for pedal Download PDFInfo
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- CN217918274U CN217918274U CN202222387959.8U CN202222387959U CN217918274U CN 217918274 U CN217918274 U CN 217918274U CN 202222387959 U CN202222387959 U CN 202222387959U CN 217918274 U CN217918274 U CN 217918274U
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- 238000003780 insertion Methods 0.000 claims description 37
- 230000037431 insertion Effects 0.000 claims description 37
- 238000009434 installation Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a running-board connection structure field especially indicates that connecting axle is fixed to articulate structure for running-board, and this structure is in including setting up patchhole, the setting at the connecting portion of connecting axle one end at crank one end, setting the fixed part and the connection of connecting portion terminal surface the installation department of fixed part, the fixed part with the installation department is dismantled and assembled structure. The inserting hole is of a polygonal structure, the two ends of the inserting hole are an inserting end and a limiting end respectively, and the distance between the two corresponding sides of the inserting end is larger than the distance between the two corresponding sides of the limiting end. The connecting portion cross-section be with the polygon that the patchhole matches, through connecting portion insert the mode of patchhole makes the connecting axle install to the crank and has realized easy operation, time saving and firm in connection's effect to solved effectively that the connecting axle insection divides positive and negative and lead to the operator to lock into as the orthodontic tooth by force easily, cause the insection of connecting axle and the articulate insection problem of damaging.
Description
Technical Field
The utility model relates to a running-board connection structure field especially indicates that connecting axle is fixed to articulate structure for the running-board.
Background
In the existing structure of fixedly connecting a connecting shaft of a pedal with a crank, generally, a screw thread is arranged at the end part of the connecting shaft, a threaded hole is arranged at the end part of the crank, and the screw thread of the connecting shaft is screwed into the threaded hole of the crank, so that the connecting shaft and the crank are fixed together to form a set of complete product pedals. The technology has the advantages that the operation is slow, the thread is divided into positive and negative, a user can easily lock the screw as the positive tooth by force, the threads of the connecting shaft and the crank are damaged, and the whole vehicle cannot be used; in addition, the connecting shaft is easy to rotate along with the rotation of the pedal plate to separate from the crank in the process of long-term use and rotation of the pedal plate, and certain potential safety hazards exist.
Disclosure of Invention
The utility model provides a not enough to above-mentioned background art provides a connecting axle is fixed to articulate structure for running-board.
The utility model adopts the following technical scheme:
the structure of connecting axle fixed to crank for the running-board, its characterized in that, this structure includes:
the inserting hole is a polygonal hole, the ports at the two ends of the inserting hole are an inserting end and a limiting end respectively, and the distance between the two corresponding edges of the inserting end is larger than the distance between the two corresponding edges of the limiting end;
the connecting part is arranged at one end of the connecting shaft, the section of the connecting part is a polygon matched with the inserting hole, and the distance between the two corresponding surfaces of the connecting part is smaller than the distance between the two corresponding surfaces of the inserting end and is larger than the distance between the two corresponding surfaces of the limiting end;
a fixing part connected to the end face of the connecting part; and (c) a second step of,
the mounting part is connected with the fixing part, the mounting part and the fixing part are of detachable structures, and the outer size of the mounting part is larger than the inner size of the insertion hole; wherein,
after the connecting part is inserted into the insertion hole from the insertion end, the mounting part is fixedly connected with the fixing part on one side of the limiting end.
As an improvement of the above structure, the fixing portion is a stud, the mounting member is a first nut which is adapted to and screwed with the stud, after the connecting portion is inserted into the insertion hole from the insertion end, the stud penetrates out of the insertion hole, and the first nut is screwed with the stud and fastened to the side surface of the first nut and the crank.
As an improvement of the above structure, the fixing portion is a threaded hole recessed in the end face of the connecting portion, the mounting member is a bolt screwed into the threaded hole, the connecting portion is inserted into the insertion hole from the insertion end, and the bolt is screwed into the threaded hole until the bolt is fastened to the side face of the crank.
As an improvement of the structure, the other end of the connecting shaft is provided with a mounting screw, the connecting shaft is a rotating part between the mounting screw and the connecting part, and the mounting screw is spirally connected with a second nut; the pedal plate is provided with a through groove which penetrates through the pedal plate, and one end of the through groove is provided with a counter bore; the rotating part is sleeved in the through groove, and the mounting screw is connected with the second nut at the position of the counter bore.
As an improvement of the above structure, the other end of the crank is provided with a connecting hole for fixing to a power input shaft of a bicycle, an electric vehicle or an exercise machine vehicle.
As a modification of the above structure, the polygon may be four sides, eight sides, twelve sides, twenty-eight sides, or the like.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the utility model discloses an in the structure, be polygonal through the cross-section connecting portion adaptation inserts polygonally the mode of patchhole makes the connecting axle is relative the unable rotation of crank can avoid the connecting axle rotates not hard up problem because of the running-board, consequently comparatively safety. Meanwhile, the connecting shaft is mounted to the crank, so that the effects of simplicity in operation, time saving and firmness in connection are achieved, and the problem that the connecting shaft thread is broken due to the fact that an operator easily locks the reverse thread serving as an orthodontic thread forcibly when the connecting shaft thread is divided into the positive thread and the negative thread is effectively solved.
Drawings
Fig. 1 is a schematic view of an embodiment of the present invention after installation.
Fig. 2 is a schematic diagram of the embodiment of the present invention after being disassembled.
Fig. 3 is a schematic cross-sectional view of an installed embodiment of the present invention.
Fig. 4 is a schematic diagram of the first embodiment of the present invention after installation.
Fig. 5 is an exploded view of an embodiment of the present invention.
Fig. 6 is a schematic cross-sectional view of an installed embodiment of the present invention.
Fig. 7 is a sectional view schematically showing the crank.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The utility model discloses a structure that connecting axle for running-board is fixed to crank, as shown in fig. 1 to 4, this structure is in including the patchhole 101 that sets up in crank 1 one end, the connecting portion 21 that sets up in connecting axle 2 one end, setting the fixed part (24 or 201) and the connection of connecting portion 21 terminal surface the installation department (31 or 32) of fixed part. The fixing part and the mounting part are detachable structures, and specifically can be structures connected through threads.
The insertion hole 101 is a polygonal hole, i.e., the insertion hole inner wall has a plurality of side surfaces. The cross section of the connecting part 21 is a polygon matched with the insertion hole 101, that is, the connecting part 21 has a prism structure, and the number of the side surfaces of the connecting part 21 is the same as that of the side surfaces in the insertion hole 101. This structure makes the connecting portion 21 radially fixed with respect to the insertion hole 101, that is, makes the connecting shaft 2 non-rotatable with respect to the crank 1, after the connecting portion 21 is fittingly inserted into the insertion hole 101. Preferably, the polygonal shapes of the insertion hole 101 and the connection portion 21 may be four, eight, twelve, twenty-eight, or the like.
As shown in fig. 7, the ports at the two ends of the insertion hole 101 are an insertion end 103 and a limiting end 104, respectively, the distance between the two corresponding sides of the insertion end 103 is greater than the distance between the two corresponding sides of the limiting end 104, which is equivalent to that the insertion hole 101 is a tapered hole, and the aperture of the insertion end 103 is greater than the aperture of the limiting end 104. The distance between the two corresponding surfaces of the connecting part 21 is smaller than the distance between the two corresponding surfaces of the insertion end 103 and larger than the distance between the two corresponding surfaces of the limiting end 104. When the connecting portion 21 is inserted into the insertion hole 101, the stopper end 104 can block the connecting portion 21, and then the mounting member is connected to the fixing portion at a side outside the stopper end 104, so that the connecting shaft 2 can be fixed to one end of the crank 1. Specifically, the connection structure of the fixing part and the mounting part may be as follows:
the first embodiment is as follows: as shown in fig. 1 to 3, the fixing portion is a stud 24, the mounting member is a first nut 31 that is screwed into the stud 24, the stud 24 passes through the insertion hole 101 after the connecting portion 21 is inserted into the insertion hole 101 from the insertion end 103, and the first nut 31 and the stud 24 are screwed to be fastened to the first nut 31 and the side surface of the crank 1, so that the connecting portion 21 can be fixed in the insertion hole 101. Further, a buffer gasket 4 is arranged between the crank 1 and the first nut 31, the buffer gasket 4 is sleeved outside the stud 24, and the structure of the buffer gasket 4 is beneficial to improving the stability of the first nut 31 after being fastened, so that the first nut 31 is prevented from loosening.
The second embodiment: as shown in fig. 4 to 6, the fixing portion is a threaded hole 201 with a concave end surface of the connecting portion 21, the mounting member is a bolt 32 adapted to be screwed into the threaded hole 201, and after the connecting portion 21 is inserted into the insertion hole 101 from the insertion end 103, the bolt 32 is screwed into the threaded hole 201 from the limiting end 104, and is fastened to a screw head of the bolt 32 and a side surface of the crank 1, so that the connecting portion 21 can be fixed in the insertion hole 101. Further, a buffer gasket 4 is arranged between the crank 1 and the bolt 32, the buffer gasket 4 is sleeved outside the bolt 32, and the structure of the buffer gasket 4 is beneficial to improving the stability of the bolt 32 after being fastened, so that the bolt 32 is prevented from loosening.
Further, the other end of the crank 1 is provided with a coupling hole 102, and the coupling hole 102 is used to be fixed to a power input shaft of a bicycle, an electric vehicle, or an exercise machine vehicle, which may be a rotating shaft fixed to a sprocket. Specifically, the connection hole 102 may be a square hole, one end of the power input shaft may be a square cylinder, a second stud is disposed at an end of the square cylinder, the second stud is in threaded and threaded connection with a second nut, when the crank is mounted, the connection hole is sleeved outside the square cylinder, and then the second nut is in threaded connection with the second stud, so that the crank 1 and the power input shaft are fixedly connected.
The other end of the connecting shaft 2 is provided with a mounting screw 23, the connecting shaft 2 is arranged between the mounting screw 23 and the connecting part 21 to form a rotating part 22, and the mounting screw 23 is in threaded connection with a third nut. A through groove is formed in a pedal (not shown in the figure) connected to the connecting shaft 2, and a counter bore is formed in one end of the through groove. When the pedal plate is installed, the rotating part 22 is sleeved in the through groove, and the installation screw is connected with the third nut at the position of the countersunk hole, so that the pedal plate can be connected outside the connecting shaft 2.
To sum up, the utility model discloses an in the structure, be polygonal through the cross-section connecting portion 21 adaptation inserts polygonally patchhole 101's mode makes connecting axle 2 is relative crank 1 is unable to rotate, can avoid connecting axle 2 rotates the not hard up problem because of the running-board, consequently comparatively safety. Meanwhile, the connecting shaft 2 is installed on the crank 1, so that the effects of simplicity in operation, time saving and firmness in connection are achieved, and the problem that in the prior art, the connecting shaft thread is positive and negative, so that an operator easily locks the opposite tooth serving as an orthodontic tooth forcibly, and the connecting shaft thread and the crank thread are damaged is effectively solved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.
Claims (6)
1. The structure that the running-board is fixed to crank with the connecting axle, its characterized in that, this structure includes:
the inserting hole is a polygonal hole, the ports at the two ends of the inserting hole are an inserting end and a limiting end respectively, and the distance between the two corresponding edges of the inserting end is larger than the distance between the two corresponding edges of the limiting end;
the connecting part is arranged at one end of the connecting shaft, the section of the connecting part is a polygon matched with the inserting hole, and the distance between the two corresponding surfaces of the connecting part is smaller than the distance between the two corresponding surfaces of the inserting end and is larger than the distance between the two corresponding surfaces of the limiting end;
a fixing part connected to the end face of the connecting part; and the number of the first and second groups,
the mounting part is connected with the fixing part, the mounting part and the fixing part are of a detachable structure, and the outer size of the mounting part is larger than the size of the insertion hole; wherein,
after the connecting part is inserted into the insertion hole from the insertion end, the mounting part is connected and fixed with the fixing part on one side of the limiting end.
2. The structure of connecting a shaft for a pedal to a crank as set forth in claim 1, wherein: the fixing part is a stud, the mounting part is a first nut which is matched with the stud in a threaded connection mode, the connecting part is inserted into the insertion hole from the insertion end, the stud penetrates out of the insertion hole, and the first nut is in threaded connection with the stud until the first nut is fastened with the side face of the crank.
3. The structure of a pedal plate fixed to a crank with a connecting shaft according to claim 1, wherein: the fixing part is a threaded hole with the end face of the connecting part recessed inwards, the mounting part is a bolt in threaded connection with the threaded hole, the connecting part is inserted into the insertion hole from the insertion end, and the bolt penetrates into the threaded hole in a threaded mode until the bolt is fastened with the side face of the crank.
4. The structure of a pedal plate as claimed in any one of claims 1 to 3 fixed to a crank with a connecting shaft, wherein: the other end of the connecting shaft is provided with a mounting screw, the connecting shaft is a rotating part between the mounting screw and the connecting part, and the mounting screw is spirally connected with a second nut; the pedal plate is provided with a through groove which penetrates through the pedal plate, and one end of the through groove is provided with a counter bore; the rotating part is sleeved in the through groove, and the mounting screw is connected with the second nut at the position of the counter bore.
5. The structure of a pedal plate as claimed in any one of claims 1 to 3 fixed to a crank with a connecting shaft, wherein: the other end of the crank is provided with a connecting hole which is used for being fixed to a power input shaft of a bicycle, an electric bicycle or a fitness equipment vehicle.
6. The structure of a pedal plate as claimed in any one of claims 1 to 3 fixed to a crank with a connecting shaft, wherein: the polygon is one of four sides, eight sides, twelve sides or twenty-eight sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222387959.8U CN217918274U (en) | 2022-09-08 | 2022-09-08 | Structure for fixing connecting shaft to crank for pedal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222387959.8U CN217918274U (en) | 2022-09-08 | 2022-09-08 | Structure for fixing connecting shaft to crank for pedal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217918274U true CN217918274U (en) | 2022-11-29 |
Family
ID=84174704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222387959.8U Active CN217918274U (en) | 2022-09-08 | 2022-09-08 | Structure for fixing connecting shaft to crank for pedal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217918274U (en) |
-
2022
- 2022-09-08 CN CN202222387959.8U patent/CN217918274U/en active Active
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