CN212353459U - Formula silence flower hub is inhaled to magnetism - Google Patents
Formula silence flower hub is inhaled to magnetism Download PDFInfo
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- CN212353459U CN212353459U CN202021086114.XU CN202021086114U CN212353459U CN 212353459 U CN212353459 U CN 212353459U CN 202021086114 U CN202021086114 U CN 202021086114U CN 212353459 U CN212353459 U CN 212353459U
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- hub
- mandrel
- magnetic ring
- stepped hole
- magnetic
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Abstract
The utility model provides a formula silence flower hub is inhaled to magnetism, it includes: the hub holder is characterized by comprising a first shaft sleeve butted with the driving seat, an inner ratchet wheel fixed at one end of the first shaft sleeve close to the driving seat and a first magnetic ring fixed at one end of the inner ratchet wheel far away from the driving seat, when the spindle rotates clockwise, the first magnetic piece drives the pawl to rotate around the pivot part under the adsorption action of the first magnetic ring so that the corner part is meshed with the inner ratchet wheel, so that the hub holder is driven to rotate, and when the spindle rotates anticlockwise, the pawl and the inner ratchet wheel rotate around the pivot part after impacting and are separated from the inner ratchet wheel under the adsorption action of the second magnetic ring.
Description
Technical Field
The utility model relates to a flower hub technical field especially relates to a formula silence flower hub is inhaled to magnetism.
Background
During the bicycle drive of prior art, thereby the hub drives the hub rotation through pivot portion on the drive seat and the ratchet ring forward meshing counterbalance on the hub seat, and when the bicycle idles, drive seat disconnection drive input, the hub seat continues along with wheel inertial rotation, pivot portion and ratchet ring form the reverse rotation contact, rotation process pivot portion and ratchet ring contact are striking for periodicity, thereby when the bicycle idles, the hub can send out rhythmic noise, influence user experience.
Therefore, there is a need for a hub that is quiet when the bicycle is idling.
Disclosure of Invention
An object of the utility model is to provide a hub of silence when bicycle is idle running.
The technical scheme of the utility model as follows: a magnetically-attracted silent hub, comprising: the hub seat comprises a first shaft sleeve butted with the hub seat, an inner ratchet fixed at one end of the first shaft sleeve close to the driving seat and a first magnetic ring fixed at one end of the inner ratchet far from the driving seat, the driving seat comprises a second shaft sleeve butted with the hub seat, a second magnetic ring formed at one end of the second shaft sleeve close to the hub seat and arranged opposite to the first magnetic ring, and a plurality of pawls arranged on the second magnetic ring and matched with the inner ratchet, the pawls comprise a pivoting part rotationally connected with the second magnetic ring, a corner part matched with the inner ratchet, a connecting part fixed between the pivoting part and the corner part and a first magnetic piece fixed at one end of the connecting part opposite to the first magnetic piece, the first magnetic piece, the first magnetic ring and the second magnetic ring are magnetized along the axial direction of the mandrel respectively, the magnetizing directions of the first magnetic piece and the first magnetic ring are the same, the magnetizing directions of the first magnetic piece and the second magnetic ring are opposite, when the mandrel rotates clockwise, the first magnetic piece drives the pawl to rotate around the pivoting part under the adsorption effect of the first magnetic ring, so that the corner part is meshed with the inner ratchet wheel, the hub seat is driven to rotate, and when the mandrel rotates anticlockwise, the pawl rotates around the pivoting part after being impacted with the inner ratchet wheel and is separated from the inner ratchet wheel under the adsorption effect of the second magnetic ring.
Preferably, the first magnetic ring comprises a gasket clamped between the first shaft sleeve and the inner ratchet wheel and a second magnetic member fixed to the gasket in an array manner, and the magnetizing direction of the second magnetic member is the same as that of the first magnetic member.
Preferably, the second magnetic ring comprises a fixing portion formed by extending the second sleeve in a direction close to the hub seat and facing the first magnetic ring in the axial direction of the mandrel, a mounting groove formed by recessing the fixing portion in a direction away from the first magnetic ring and accommodating the pawl, and a third magnetic member fixed in the mounting groove and attracted to the corner of the pawl.
Preferably, the mounting groove comprises a first blind hole in rotating fit with the pivot shaft, a second blind hole communicated with the first blind hole and accommodating the connecting part, a first groove communicated with the second blind hole and accommodating the corner part, and a third blind hole communicated with the first groove and fixing the third magnetic part.
Preferably, the fixing portion is arranged opposite to the inner ratchet wheel along the radial direction of the mandrel, and the fixing portion penetrates through the second blind hole and the first groove along the radial direction of the mandrel.
Preferably, the hub seat further comprises a first stepped hole formed at one end of the first shaft sleeve close to the driving seat and recessed along the axial direction of the mandrel, a second stepped hole formed from the first stepped hole and recessed away from the driving seat along the axial direction of the mandrel, a third stepped hole formed at one end of the first shaft sleeve far from the driving seat and recessed along the axial direction of the mandrel, a first reinforcing rib formed from the first shaft sleeve and extending along the radial direction of the mandrel and formed close to one end of the driving seat, and a second reinforcing rib formed from the first shaft sleeve and extending along the radial direction of the mandrel and formed away from one end of the driving seat.
Preferably, the driving seat further comprises a fourth stepped hole formed at one end of the second sleeve close to the hub seat and formed along the axial depression of the mandrel, a fifth stepped hole formed at one end of the second sleeve far from the hub seat and formed along the axial depression of the mandrel, and a third reinforcing rib formed by extending the second sleeve in the radial direction of the mandrel and close to one end of the fixing portion.
Preferably, the mute flower hub further comprises a first bearing arranged in the second stepped hole, a second bearing arranged in the fourth stepped hole, a third shaft sleeve arranged between the first bearing and the second bearing and arranged in the first stepped hole at intervals, a third bearing arranged in the third stepped hole, a first end cover sleeved on one end of the mandrel far away from the driving seat and partially arranged in the third stepped hole, a fourth bearing arranged in the fifth stepped hole, and a second end cover sleeved on one end of the mandrel far away from the flower hub seat and partially arranged in the fifth stepped hole.
Preferably, the inner ratchet wheel and the first magnetic ring are arranged in the first stepped hole, and the first magnetic ring is arranged between the first stepped hole and the inner ratchet wheel along the axial direction of the mandrel.
Preferably, the fixing part and the inner ratchet wheel are arranged at intervals along the radial direction of the mandrel.
The beneficial effects of the utility model reside in that: when the spindle rotates clockwise, the first magnetic piece drives the pawl to rotate around the pivoting part under the adsorption action of the first magnetic ring, so that the corner part is meshed with the inner ratchet wheel, the hub seat is driven to rotate, and when the spindle rotates anticlockwise, the pawl rotates around the pivoting part after being impacted with the inner ratchet wheel and is separated from the inner ratchet wheel under the adsorption action of the second magnetic ring.
[ description of the drawings ]
FIG. 1 is a schematic view of a three-dimensional structure of a hub of the present invention; FIG. 2 is an exploded view of the hub structure of the present invention; FIG. 3 is a schematic structural view of the hub seat of the present invention; FIG. 4 is a schematic view of the driving seat structure of the present invention; FIG. 5 is an enlarged view of a portion of FIG. 4A; FIG. 6 is a side view of the hub of the present invention; FIG. 7 is a schematic view of the cross-sectional structure B-B of FIG. 6; fig. 8 is a schematic view of the cross-sectional structure C-C of fig. 6.
[ detailed description ] embodiments
The present invention will be further described with reference to the accompanying drawings and embodiments.
The present embodiment provides a magnetic attraction type mute hub 100, see fig. 1 to 8, which includes: the hub base 10, the driving base 20, the spindle 30, the first bearing 40, the second bearing 50, the third bearing 60, the fourth bearing 70, the third shaft sleeve 80, the first end cover 91 and the second end cover 92. Referring to fig. 8, the driving seat 20 relatively slides along the hub seat 10 in the clockwise direction, and it is understood that when the opposite view is changed, the driving seat 20 relatively slides along the hub seat 10 in the clockwise direction in the counterclockwise direction. The spindle 30 axially penetrates through the hub seat 10 and the spindle 30 of the drive seat 20, the spindle 30 is fixedly connected with the drive seat 20, and the spindle 30 is rotatably connected with the hub seat 10.
Preferably, the hub seat 10 includes a first shaft sleeve 11, an inner ratchet 12, a first magnetic ring 13, a first stepped hole 14, a second stepped hole 15, a third stepped hole 16, a first reinforcing rib 17 and a second reinforcing rib 18. The first shaft sleeve 11 is butted with the driving seat 20, the inner ratchet wheel 12 is fixed at one end of the first shaft sleeve 11 close to the driving seat 20, the first magnetic ring 13 is fixed at one end of the inner ratchet wheel 12 far from the driving seat 20, the first stepped hole 14 is formed at one end of the first shaft sleeve 11 close to the driving seat 20, and the first stepped hole 14 is formed along the axial direction of the mandrel 30, the second stepped hole 15 is formed from the first stepped hole 14 along the axial direction of the mandrel 30 away from the driving seat 20, the third stepped hole 16 is formed at one end of the first shaft sleeve 11 away from the driving seat 20, and the third stepped hole 16 is formed along the axial direction of the mandrel 30, the first reinforcing rib 17 is formed extending from the first boss 11 along the radial direction of the mandrel 30, and the first reinforcing rib 17 is close to one end of the driving seat 20, the second reinforcing rib 18 is formed by extending from the first shaft sleeve 11 along the radial direction of the mandrel 30, and the second reinforcing rib 18 is far from one end of the driving seat 20. The inner ratchet wheel 12 and the first magnetic ring 13 are disposed in the first stepped hole 14, and the first magnetic ring 13 is disposed between the first stepped hole 14 and the inner ratchet wheel 12 along the axial direction of the spindle 30.
Preferably, the driving seat 20 includes a second shaft sleeve 21, a second magnetic ring 22, a pawl 23, a fourth stepped hole 24, a fifth stepped hole 25 and a third reinforcing rib 26. The second shaft sleeve 21 is butted with the hub holder 10, the second magnetic ring 22 is formed at one end of the second shaft sleeve 21 close to the hub holder 10, the second magnetic ring 22 is arranged opposite to the first magnetic ring 13, the plurality of pawls 23 are arranged on the second magnetic ring 22, the pawls 23 are matched with the inner ratchet wheel 12, the fourth stepped hole 24 is formed at one end of the second shaft sleeve 21 close to the hub holder 10, the fourth stepped hole 24 is formed along the axial recess of the spindle 30, the fifth stepped hole 25 is formed at one end of the second shaft sleeve 21 far away from the hub holder 10, the fifth stepped hole 25 is formed along the axial recess of the spindle 30, the third reinforcing rib 26 is formed by extending from the second shaft sleeve 21 along the radial direction of the spindle 30, the third reinforcing rib 26 is close to one end of the fixing portion 221, and the fixing portion 221 and the inner ratchet wheel 12 are arranged at intervals along the radial direction of the spindle 30.
Preferably, the pawl 23 includes a pivoting portion 231, a corner portion 232, a connecting portion 233 and a first magnetic member 234. The pivot 231 is rotatably connected with the second magnetic ring 22, the corner 232 is matched with the inner ratchet wheel 12, the connecting portion 233 is fixed between the pivot 231 and the corner 232, the first magnetic member 234 is fixed at an end of the connecting portion 233 opposite to the first magnetic ring 13, the first magnetic member 234, the first magnetic ring 13 and the second magnetic ring 22 are respectively magnetized along the axial direction of the spindle 30, the magnetizing direction of the first magnetic member 234 is the same as that of the first magnetic ring 13, the magnetizing direction of the first magnetic member 234 is opposite to that of the second magnetic ring 22, when the spindle 30 rotates clockwise, the first magnetic member 234 drives the pawl 23 to rotate around the pivot 231 under the adsorption action of the first magnetic ring 13 so that the corner 232 is engaged with the inner ratchet wheel 12, thereby driving the hub seat 10 to rotate, when the spindle 30 rotates counterclockwise, the pawl 23 rotates around the pivot 231 after colliding with the inner ratchet wheel 12 and is separated from the inner ratchet wheel 12 under the adsorption action of the second magnetic ring 22, thereby avoiding noise.
Specifically, the first magnetic ring 13 includes a washer 131 and a second magnetic member 132, the washer 131 is sandwiched between the first shaft sleeve 11 and the inner ratchet 12, the second magnetic member 132 is fixed to the washer 131 in an array, and a magnetizing direction of the second magnetic member 132 is the same as a magnetizing direction of the first magnetic member 234.
Specifically, the second magnetic ring 22 includes a fixing portion 221, a mounting groove 222 and a third magnetic member 223, the fixing portion 221 is formed by extending the second sleeve 21 toward the hub 10, the fixing portion 221 is disposed opposite to the first magnetic ring 13 along the axial direction of the spindle 30, the mounting groove 222 is formed by recessing the fixing portion 221 toward the direction away from the first magnetic ring 13, the mounting groove 222 accommodates the pawl 23, the third magnetic member 223 is fixed in the mounting groove 222, and the third magnetic member 223 is attracted to the corner 232 of the pawl 23.
Specifically, the mounting groove 222 includes a first blind hole 2221, a second blind hole 2222, a first groove 2223, and a third blind hole 2224, the first blind hole 2221 is rotationally matched with the pivot shaft, the second blind hole 2222 is communicated with the first blind hole 2221, the second blind hole 2222 accommodates the connecting portion 233, the first groove 2223 is communicated with the second blind hole 2222, the first groove 2223 accommodates the corner portion 232, the third blind hole 2224 is communicated with the first groove 2223, and the third blind hole 2224 fixes the third magnetic member 223. The fixing portion 221 is disposed opposite to the inner ratchet 12 along the radial direction of the spindle 30, and the fixing portion 221 penetrates through the second blind hole 2222 and the first groove 2223 along the radial direction of the spindle 30.
Preferably, the first bearing 40 is disposed in the second stepped hole 15, the second bearing 50 is disposed in the fourth stepped hole 24, the third shaft sleeve 80 is disposed between the first bearing 40 and the second bearing 50, the third shaft sleeve 80 is disposed in the first stepped hole 14 at intervals, the third bearing 60 is disposed in the third stepped hole 16, the first end cap 91 is sleeved on one end of the mandrel 30 far away from the driving seat 20, the first end cap 91 is partially disposed in the third stepped hole 16, the fourth bearing 70 is disposed in the fifth stepped hole 25, the second end cap 92 is sleeved on one end of the mandrel 30 far away from the hub seat 10, and the second end cap 92 is partially disposed in the fifth stepped hole 25.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (10)
1. A magnetically-attracted silent hub, comprising: the hub holder is characterized by comprising a first shaft sleeve butted with the hub holder, an inner ratchet fixed at one end of the first shaft sleeve close to the driving seat and a first magnetic ring fixed at one end of the inner ratchet far from the driving seat, the driving seat comprises a second shaft sleeve butted with the hub holder, a second magnetic ring formed at one end of the second shaft sleeve close to the hub holder and opposite to the first magnetic ring, and a plurality of pawls arranged on the second magnetic ring and matched with the inner ratchet, wherein the pawls comprise a pivoting part rotationally connected with the second magnetic ring, a corner part matched with the inner ratchet, a connecting part fixed between the pivoting part and the corner part and a first magnetic piece fixed at one end of the connecting part opposite to the first magnetic ring, the first magnetic piece, the first magnetic ring and the second magnetic ring are magnetized along the axial direction of the mandrel respectively, the magnetizing directions of the first magnetic piece and the first magnetic ring are the same, the magnetizing directions of the first magnetic piece and the second magnetic ring are opposite, when the mandrel rotates clockwise, the first magnetic piece drives the pawl to rotate around the pivoting part under the adsorption effect of the first magnetic ring, so that the corner part is meshed with the inner ratchet wheel, the hub seat is driven to rotate, and when the mandrel rotates anticlockwise, the pawl rotates around the pivoting part after being impacted with the inner ratchet wheel and is separated from the inner ratchet wheel under the adsorption effect of the second magnetic ring.
2. The magnetic attraction type mute flower hub as claimed in claim 1, wherein: the first magnetic ring comprises a gasket clamped between the first shaft sleeve and the inner ratchet wheel and a second magnetic piece fixed on the gasket in an array mode, and the magnetizing direction of the second magnetic piece is the same as that of the first magnetic piece.
3. The magnetically-attractable silent hub as claimed in claim 2, wherein: the second magnetic ring comprises a fixing part which is formed by extending the second shaft sleeve in the direction close to the hub seat and is opposite to the first magnetic ring in the axial direction of the mandrel, a mounting groove which is formed by sinking the fixing part in the direction far away from the first magnetic ring and is used for accommodating the pawl, and a third magnetic piece which is fixed in the mounting groove and is adsorbed with the corner of the pawl.
4. The magnetic attraction type mute flower hub as claimed in claim 3, wherein: the mounting groove comprises a first blind hole in rotating fit with the pivot shaft, a second blind hole communicated with the first blind hole and accommodating the connecting part, a first groove communicated with the second blind hole and accommodating the corner part, and a third blind hole communicated with the first groove and fixing the third magnetic part.
5. The magnetically-attracted silent hub according to claim 4, wherein: the fixing part is arranged opposite to the inner ratchet wheel along the radial direction of the mandrel, and the fixing part penetrates through the second blind hole and the first groove along the radial direction of the mandrel.
6. The magnetic attraction type mute flower hub as claimed in claim 5, wherein: the hub seat further comprises a first stepped hole formed at one end, close to the driving seat, of the first shaft sleeve and recessed along the axial direction of the mandrel to form a first stepped hole, a second stepped hole formed from the first stepped hole and recessed away from the driving seat along the axial direction of the mandrel, a third stepped hole formed at one end, far away from the driving seat, of the first shaft sleeve and recessed along the axial direction of the mandrel to form a third stepped hole, a first reinforcing rib formed from the first shaft sleeve and extending along the radial direction of the mandrel and being close to one end of the driving seat, and a second reinforcing rib formed from the first shaft sleeve and extending along the radial direction of the mandrel and being far away from one end of the driving seat.
7. The magnetic attraction type mute flower hub as claimed in claim 6, wherein: the driving seat further comprises a fourth stepped hole formed at one end, close to the hub seat, of the second shaft sleeve and formed along the axial direction of the mandrel in a concave mode, a fifth stepped hole formed at one end, far away from the hub seat, of the second shaft sleeve and formed along the axial direction of the mandrel in a concave mode, and a third reinforcing rib formed by extending the second shaft sleeve in the radial direction of the mandrel and formed close to one end of the fixing portion.
8. The magnetic attraction type mute flower hub as claimed in claim 7, wherein: the mute flower hub further comprises a first bearing arranged in the second stepped hole, a second bearing arranged in the fourth stepped hole, a third shaft sleeve arranged between the first bearing and the second bearing and arranged in the first stepped hole at intervals, a third bearing arranged in the third stepped hole, a first end cover sleeved on one end of the mandrel far away from the driving seat and partially positioned in the third stepped hole, a fourth bearing arranged in the fifth stepped hole and a second end cover sleeved on one end of the mandrel far away from the flower hub seat and partially positioned in the fifth stepped hole.
9. The magnetically-attracted silent hub according to claim 8, wherein: the inner ratchet wheel and the first magnetic ring are arranged in the first stepped hole, and the first magnetic ring is arranged between the first stepped hole and the inner ratchet wheel along the axial direction of the mandrel.
10. The magnetic attraction type mute flower hub as claimed in claim 9, wherein: the fixing part and the inner ratchet wheel are arranged at intervals along the radial direction of the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021086114.XU CN212353459U (en) | 2020-06-13 | 2020-06-13 | Formula silence flower hub is inhaled to magnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021086114.XU CN212353459U (en) | 2020-06-13 | 2020-06-13 | Formula silence flower hub is inhaled to magnetism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212353459U true CN212353459U (en) | 2021-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021086114.XU Active CN212353459U (en) | 2020-06-13 | 2020-06-13 | Formula silence flower hub is inhaled to magnetism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212353459U (en) |
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2020
- 2020-06-13 CN CN202021086114.XU patent/CN212353459U/en active Active
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