CN206579774U - Bicycle or electrical bicycle middle shaft mounting structure - Google Patents
Bicycle or electrical bicycle middle shaft mounting structure Download PDFInfo
- Publication number
- CN206579774U CN206579774U CN201720221689.XU CN201720221689U CN206579774U CN 206579774 U CN206579774 U CN 206579774U CN 201720221689 U CN201720221689 U CN 201720221689U CN 206579774 U CN206579774 U CN 206579774U
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- Prior art keywords
- wrister
- way tube
- axis
- screw thread
- ring
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- 230000004323 axial length Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 210000000707 wrist Anatomy 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
This application discloses a kind of bicycle or electrical bicycle middle shaft mounting structure, including Five-way tube and wear and the axis in Five-way tube;Also include the right wrister cooperated, right support bearing, left wrister, left support bearing and retaining ring.The parts such as left wrister, right wrister and retaining ring of the application by setting special construction connect axis and Five-way tube, have prevented completely because axis is held tightly or the problem of axial float caused by Five-way tube axial length is bigger than normal or less than normal.
Description
Technical field
The application is related to electric bicycle field, and in particular to a kind of bicycle or electrical bicycle middle shaft mounting structure.
Background technology
In the prior art, it is to use for installation of the axis on Five-way tube of electric bicycle or ordinary bicycle
Axis is axially fixed on Five-way tube by two threaded wristers of the axial locking in Five-way tube left and right ends.And require
After installation, left and right wrister and Five-way tube or so end face are closely adjacent to, it is impossible to leave gap.
However, due to the bicycle five-pipe of many manufacturer productions, there is either large or small error in its axial dimension.Such as
The axial dimension of fruit Five-way tube is less than normal, just must increase packing ring between left and right wrister and Five-way tube or so end face, to seal a left side
Axial gap between right wrister and Five-way tube or so end face, otherwise will cause left and right wrister excessive to the axial clamping force of axis
And cause axis to be unable to normal rotation.If the axial dimension of Five-way tube is bigger than normal, then axle of the left and right wrister to axis will be caused
Too small to clamping force, internal spring bearing and axis can produce axial motion, using riding for user.
The application comes therefrom.
The content of the invention
The application purpose is:A kind of bicycle or electrical bicycle middle shaft mounting structure are provided, to prevent completely because five is logical
Axis is held tightly or the problem of axial float caused by pipe axial length is bigger than normal or less than normal.
The technical scheme of the application is:A kind of bicycle or electrical bicycle middle shaft mounting structure, including:
It is formed with respectively on the Five-way tube of electric bicycle, the inwall of the axial left and right ends of the Five-way tube axially extending
The left inside screw thread of Five-way tube and the right internal thread of Five-way tube;And
Axis, the axis is arranged in the Five-way tube and its axial left and right ends is stretched out outside the Five-way tube,
And the left ring-shaped step of axis and the right annular of axis along its right distribution of the first from left of axis direction one are formed with the outer wall of the axis
Step;
Also include:
Right wrister, the right wrister is that the outer ring-shaped step of right wrister, the right shield are formed with cylindrical structure and its outer wall
Axially extending right wrister external screw thread, the right wrister external screw thread and the right internal thread screw thread of the Five-way tube are formed with the outer wall of wrist
Coordinate, and the right wrister ring-shaped step is axially pressed on the axial right side of the Five-way tube, so that the right side
Wrister is locked with the Five-way tube;
Right support bearing, the right support coaxial bearing is fixed in the right wrister, and the right support coaxial bearing set
Located at the right part of the axis;
Left wrister, the left wrister is that the outer ring-shaped step of left wrister, the left shield are formed with cylindrical structure and its outer wall
Axially extending left wrister external screw thread and left wrister internal thread, the left wrister external screw thread are formed respectively with the outer wall and inwall of wrist
Coordinate with the left inside screw thread of the Five-way tube, and the outer annular Step Shaft of the left wrister is to the axle for being pressed on the Five-way tube
To on left side, so that the left wrister is locked with the Five-way tube;
Left support bearing, the left support coaxial bearing is sheathed on the left part of the axis;And
It is formed with retaining ring annular step, the outer wall of the retaining ring and makes on retaining ring, the inwall of the retaining ring
There are axially extending retaining ring external screw thread, the retaining ring external screw thread and the left wrister internal thread rotation tight fit, so that
The right ring-shaped step of axis is axially pressed on the left side of the right support bearing, while so that the left support bearing is by axle
To being clamped between the retaining ring annular step and the left ring-shaped step of the axis.
The application is on the basis of above-mentioned technical proposal, in addition to following preferred scheme:
Right wrister annular step and jump-ring slot are formed with the inwall of the right wrister, the right support bearing is by axial direction
It is clamped between the right wrister annular step and jump ring in the jump-ring slot, so as to realize the right support
The fixation of bearing and the right wrister.
The externally threaded axial dimension of left wrister is less than the axial dimension of the left inside screw thread of the Five-way tube.
The externally threaded axial dimension of right wrister is less than the axial dimension of the right internal thread of the Five-way tube.
The advantage of the application is:The application is by setting the left wrister, right wrister and retaining ring of special construction come in connecting
Axle and Five-way tube, have prevented because axis is held tightly or axial float is asked caused by Five-way tube axial length is bigger than normal or less than normal completely
Topic.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is further described to the application:
Fig. 1 is the half sectional view of this bicycle or electrical bicycle middle shaft mounting structure in the embodiment of the present application;
Fig. 2 is the exploded view of this bicycle or electrical bicycle middle shaft mounting structure in the embodiment of the present application;
Wherein:1- Five-way tubes, the left inside screw thread of 1a- Five-way tubes, the right internal thread of 1b- Five-way tubes, 2- axis, the left ring of 2a- axis
Shape step, the right ring-shaped step of 2b- axis, the left wristers of 3-, the outer ring-shaped step of the left wristers of 3a-, the left wrister external screw threads of 3b-, the left shields of 3c-
Wrist internal thread, 4- left support bearings, 5- retaining rings, 5a- retaining ring annular steps, 5b- retaining ring external screw threads, the right wristers of 6-,
The outer ring-shaped step of the right wristers of 6a-, the right wrister external screw threads of 6b-, the right wrister annular steps of 6c-, 7- right support bearings, 8- jump rings.
Embodiment
Figures 1 and 2 show that a specific implementation of this bicycle of the application or electrical bicycle middle shaft mounting structure
Example, is that the axis mounting structure includes the Five-way tube 1 and axis 1 of bicycle or electric bicycle with traditional scheme identical.Its
In:
The left inside screw thread 1a and five of axially extending Five-way tube is formed with respectively on the inwall of the axial left and right ends of Five-way tube 1 to lead to
The right internal thread 1b of pipe.The five of axially extending (generally axially extending in the shape of a spiral) are formed with the inwall of the axial left end of Five-way tube 1
The left inside screw thread 1a of siphunculus.The five of axially extending (generally axially extending in the shape of a spiral) are formed with the inwall of the axial right-hand member of Five-way tube 1
The right internal thread 1b of siphunculus.
Axis 2 is arranged in Five-way tube 1, and the axial left and right ends of axis 2 are stretched out outside Five-way tube 1, to connect
Crank and foot-operated.Be formed with the outer wall of the axis 2 along its right distribution of the first from left of axis direction one the left ring-shaped step 2a of axis and
The right ring-shaped step 2b of axis.
The key improvements of the present embodiment are that the mounting structure also includes left wrister 3, and right wrister 6, left support bearing 4 is right
Spring bearing 7 and retaining ring 5.Wherein:
Right wrister 6 is that the outer ring-shaped step 6a of right wrister is formed with cylindrical structure and its outer wall.Made on the outer wall of right wrister 6
There is axially extending right wrister external screw thread 6b, right wrister external screw thread 6b coordinates with the right internal thread 1b screw threads of Five-way tube, and passes through
Aforementioned threads coordinate and make it that right wrister ring-shaped step 6a is axially pressed on the axial right side of Five-way tube 1, and then cause the right side
Wrister 6 is locked with Five-way tube 1.Because the cooperation of right wrister 6 and Five-way tube 1 is without other structures part limitation (and conventional art
In, if Five-way tube is too short, can be limited by axis and spring bearing), so the two axial compression can be made, be not in
Axial gap.
Right support bearing 7 is coaxially fixed in right wrister 6, and the coaxial sleeve of right support bearing 7 is located at the right-hand member of axis 1
Portion.Such as limited without other structures part, the right support bearing 7 can be moved axially relative to axis 2 under external force.
Left wrister 3 is that the outer ring-shaped step 3a of left wrister is formed with cylindrical structure and its outer wall.The outer wall of left wrister 3 and interior
Axially extending left wrister external screw thread 3b and left wrister internal thread 3c is formed respectively with wall.Left wrister external screw thread 3b is left with Five-way tube
Internal thread 1a screw threads coordinate, and and are coordinated by aforementioned threads and make it that ring-shaped step 3a is axially pressed on five outside left wrister
On the axial left side of siphunculus 1, so that left wrister (3) is locked with the Five-way tube 1.Because left wrister 3 and five leads to
The cooperation of pipe 1 limit without other structures part (and in conventional art, can be by axis and spring bearing if Five-way tube is too short
Limitation), be not in axial gap so the two axial compression can be made.
The coaxial sleeve of left support bearing 4 is located at the left part of axis 2.Such as limit, under external force should without other structures part
Left support bearing 4 can be moved axially relative to axis 2.
Be formed with the inwall of retaining ring 5 on retaining ring annular step 5a, the outer wall of retaining ring 5 be formed with it is axially extending
Retaining ring external screw thread 5b.Retaining ring external screw thread 5b and left wrister internal thread 3c screws cooperation, so that the right ring-shaped step of axis
2b is axially pressed on the left side of right support bearing 7, while so that left support bearing 4 is clamped axially retaining ring annular platform
Between rank 5a and the left ring-shaped step 2a of axis.
By said structure, the axially position of axis 2 and Five-way tube 1 is realized.No matter Five-way tube 1 size it is bigger than normal or inclined
It is small, as long as screwing retaining ring 5 (being unable to tension, can not be excessively loose), by adjusting axial location of the retaining ring 5 in left wrister 3,
Just the axially position of axis 2 and Five-way tube 1 can be realized, the problem of preventing axis holding or axial float completely.
In the present embodiment, the fixed form between above-mentioned right support bearing 7 and right wrister 6 is:Formed on the inwall of right wrister 6
There are right wrister annular step 6c and jump-ring slot.Right support bearing 7 is clamped axially right wrister annular step 6c and peace
Between jump ring 8 in jump-ring slot, so as to realize the fixation of right support bearing 7 and right wrister 6.
In the present embodiment, left wrister external screw thread 3b axial dimension is less than the left inside screw thread 1a of Five-way tube axial dimension,
Right wrister external screw thread 6b axial dimension is less than the right internal thread 1b of Five-way tube axial dimension.
Certainly, above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to make people much of that
Solution present context is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application major technique
Equivalent transformation or modification that the Spirit Essence of scheme is done, should all cover within the protection domain of the application.
Claims (4)
1. a kind of bicycle or electrical bicycle middle shaft mounting structure, including:
It is left inside that axially extending Five-way tube is formed with respectively on Five-way tube (1), the inwall of the axial left and right ends of the Five-way tube (1)
Screw thread (1a) and the right internal thread of Five-way tube (1b);And
Axis (2), the axis (2) is arranged in the Five-way tube (1) and the Five-way tube is stretched out in its axial left and right ends
(1) it is outside, and the left ring-shaped step of axis along the right distribution of the first from left of its axis direction one is formed with the outer wall of the axis (2)
(2a) and the right ring-shaped step of axis (2b);
Characterized in that, also including:
Right wrister (6), the right wrister (6) is that the outer ring-shaped step (6a) of right wrister, institute are formed with cylindrical structure and its outer wall
Be formed with axially extending right wrister external screw thread (6b) on the outer wall for stating right wrister (6), the right wrister external screw thread (6b) with it is described
The right internal thread of Five-way tube (1b) screw thread coordinates, and the right wrister ring-shaped step (6a) is axially pressed on the Five-way tube (1)
Axial right side on so that the right wrister (6) is locked with the Five-way tube (1);
Right support bearing (7), the right support bearing (7) is coaxially fixed in the right wrister (6), and the right support bearing
(7) coaxial sleeve is located at the right part of the axis (1);
Left wrister (3), the left wrister (3) is that the outer ring-shaped step (3a) of left wrister, institute are formed with cylindrical structure and its outer wall
State and axially extending left wrister external screw thread (3b) and left wrister internal thread are formed respectively with the outer wall and inwall of left wrister (3)
(3c), the left wrister external screw thread (3b) coordinates with the left inside screw thread of the Five-way tube (1a) screw thread, and the left wrister outer shroud
Shape step (3a) is axially pressed on the axial left side of the Five-way tube (1), so that the left wrister (3) and described five
Siphunculus (1) is locked;
Left support bearing (4), left support bearing (4) coaxial sleeve is located at the left part of the axis (2);And
Retaining ring annular step (5a) is formed with retaining ring (5), the inwall of the retaining ring (5), the retaining ring (5)
Axially extending retaining ring external screw thread (5b), the retaining ring external screw thread (5b) and the left wrister internal thread are formed with outer wall
(3c) screws cooperation, so that the right ring-shaped step of the axis (2b) is axially pressed on the left end of the right support bearing (7)
Face, while so that the left support bearing (4) is clamped axially the retaining ring annular step (5a) and the axis is left
Between ring-shaped step (2a).
2. bicycle according to claim 1 or electrical bicycle middle shaft mounting structure, it is characterised in that the right wrister
(6) right wrister annular step (6c) and jump-ring slot are formed with inwall, the right support bearing (7) is clamped axially institute
State between right wrister annular step (6c) and jump ring (8) in the jump-ring slot, so as to realize the right support
The fixation of bearing (7) and the right wrister (6).
3. bicycle according to claim 1 or electrical bicycle middle shaft mounting structure, it is characterised in that the left wrister
The axial dimension of external screw thread (3b) is less than the axial dimension of the left inside screw thread of the Five-way tube (1a).
4. bicycle according to claim 1 or electrical bicycle middle shaft mounting structure, it is characterised in that the right wrister
The axial dimension of external screw thread (6b) is less than the axial dimension of the right internal thread of the Five-way tube (1b).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720221689.XU CN206579774U (en) | 2017-03-08 | 2017-03-08 | Bicycle or electrical bicycle middle shaft mounting structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720221689.XU CN206579774U (en) | 2017-03-08 | 2017-03-08 | Bicycle or electrical bicycle middle shaft mounting structure |
Publications (1)
Publication Number | Publication Date |
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CN206579774U true CN206579774U (en) | 2017-10-24 |
Family
ID=60112355
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CN201720221689.XU Expired - Fee Related CN206579774U (en) | 2017-03-08 | 2017-03-08 | Bicycle or electrical bicycle middle shaft mounting structure |
Country Status (1)
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CN (1) | CN206579774U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106741501A (en) * | 2017-03-08 | 2017-05-31 | 苏州八方电机科技有限公司 | Bicycle or electrical bicycle middle shaft mounting structure |
CN110282066A (en) * | 2019-07-08 | 2019-09-27 | 八方电气(苏州)股份有限公司 | A kind of sensor for axle component installation structure |
-
2017
- 2017-03-08 CN CN201720221689.XU patent/CN206579774U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106741501A (en) * | 2017-03-08 | 2017-05-31 | 苏州八方电机科技有限公司 | Bicycle or electrical bicycle middle shaft mounting structure |
CN110282066A (en) * | 2019-07-08 | 2019-09-27 | 八方电气(苏州)股份有限公司 | A kind of sensor for axle component installation structure |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: Suzhou City Industrial Park Loufeng town and the road of 215000 Jiangsu province No. 9 Patentee after: BAFANG ELECTRIC (SUZHOU) Co.,Ltd. Address before: Suzhou City Industrial Park Loufeng town and the road of 215122 Jiangsu province No. 9 Patentee before: SUZHOU BAFANG ELECTRIC MOTOR SCIENCE-TECHNOLOGY Co.,Ltd. |
|
CP03 | Change of name, title or address | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 |
|
CF01 | Termination of patent right due to non-payment of annual fee |