CN109649565A - A kind of fire-way axle bowl group and bicycle pedals crank assemblies - Google Patents
A kind of fire-way axle bowl group and bicycle pedals crank assemblies Download PDFInfo
- Publication number
- CN109649565A CN109649565A CN201910036902.3A CN201910036902A CN109649565A CN 109649565 A CN109649565 A CN 109649565A CN 201910036902 A CN201910036902 A CN 201910036902A CN 109649565 A CN109649565 A CN 109649565A
- Authority
- CN
- China
- Prior art keywords
- fire
- bearing
- ring surface
- bushing
- bowl group
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
- B62M3/003—Combination of crank axles and bearings housed in the bottom bracket
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a kind of fire-way axle bowl group and bicycle pedals crank assemblies, including connected crank, fluted disc and hollow Five-way tube body, the connected crank includes the lower section being sequentially connected, mandrel and upper section, the lower section and mandrel are integrally formed, the both ends of the mandrel are provided with external screw thread, a fire-way axle bowl group is bolted on the external screw thread respectively, the fire-way axle bowl group is fire-way axle bowl group described in above-mentioned any one, is provided with fix stopper between the upper section and fluted disc.It is preferred that the shelves part close to the fire-way axle bowl group of lower section is first grade of part, the shelves part close to the fire-way axle bowl group of upper section is second gear part.The problems such as enabling each bearing to fit closely with each shelves part, its wall surface is abutted against closer, and be not likely to produce gap, there is preferable positioning degree after assembling, and be not to generate the shaking of component, offset.Connected crank uses lower section and mandrel integrated formed structure, and upper section and mandrel are detachably connected, easy to assembly, and assembly efficiency is high.
Description
Technical field
The present invention relates to a kind of fire-way axle bowl group and bicycle pedals crank assemblies.
Background technique
The bottom of cycle frame is typically provided with a Five-way tube, and two fire-way axle bowl groups are connected to the Five-way tube respectively
It on the inside of both ends, and is arranged in two fire-way axle bowl groups with a mandrel, wherein for the mandrel in conjunction with the crank of foot pedal, a pair five is logical
Bowl group then provides the function of mandrel rotation actuation.
The ball bowl group structure of existing design is as shown in Figure 1 comprising a ball bowl seat 1, one is set in the ball bowl seat 1
The ball bearing 2, one of side is covered on the ball bearing 2 and wears the sealing ring for the sealing ring 3 and one of flexible rubber
3 shelves part 4, however, such, directly by ball bearing 2, for design that mandrel is worn, there are following deficiencies:
The first, group is loaded onto relatively time-consuming, can reduce the efficiency integrally assembled；
The second, the ball of round bead shape uses point contact mode, and bracing force is limited；
Between third, ball bearing 2 and shelves part 4 can not complete tight fit, both cause to hold between component with the presence of gap
It is also easy to produce loosening, when user tramples foot pedal, phenomena such as stability is insufficient has been easy, after long-time use, can exist askew
The problems such as tiltedly deforming and damage.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of fire-way axle bowl group and bicycle pedals crank assemblies, it is easy to assembly and each
The wall surface of component be abutted against it is closer, be not likely to produce gap, bearing can combine closely in hollow Five-way tube body with shelves part, group
There is preferable positioning degree after dress, avoid the problems such as generating the shaking of component, offset.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme:
A kind of fire-way axle bowl group further includes lining including bearing, shelves part and the bearing bowl seat for being inserted in hollow Five-way tube body tip inside
Set, one end of the bushing are provided with flange, and the bearing is arranged between the bushing outer ring surface of bushing and bearing bowl seat, described
One end of shelves part is provided with flange, and the shelves part is provided with internal screw thread corresponding with mandrel external screw thread, and the shelves part is socketed in
In bushing inner ring surface and the flange of the flange of shelves part and bushing is bonded.
It is preferred that the bushing is plastic bushing.
It is preferred that the shelves part is first grade of part, first grade of part includes hollow cylindrical shape body portion and flange head,
The body portion of first grade of part is in smooth shelves part anchor ring, the shelves part anchor ring and the fitting of bushing inner ring surface.
It is preferred that the shelves part is second gear part, the second gear part includes hollow cylindrical shape body portion and flange head,
The body portion of the second gear part is in smooth shelves part anchor ring, the shelves part anchor ring and the fitting of bushing inner ring surface.
It is preferred that the head of the second gear part is rounded or approximate circular shape, the head of the second gear part are evenly equipped with
Several notches.
It is preferred that the quantity of the notch is 3.
It is preferred that the bearing bowl seat tool has a bearing bowl seat outer ring surface and one for being resisted against anchor ring in hollow Five-way tube body
In contrast to the bearing bowl seat inner ring surface of bearing bowl seat outer ring surface, the bearing bowl seat outer ring surface and bearing bowl seat inner ring surface are in rank
Scalariform, the bearing bowl seat outer ring surface include connected the first ladder section and second-order bench, the outer diameter of the second-order bench
Less than the outer diameter of the first ladder section, the end of the first ladder section is provided with turning over of can engaging with hollow Five-way tube body end portion
Side.
A kind of bicycle pedals crank assemblies, including connected crank, fluted disc and hollow Five-way tube body, the connected crank packet
The lower section being sequentially connected, mandrel and upper section are included, the lower section and mandrel are integrally formed, and the both ends of the mandrel are provided with outer spiral shell
Line, a fire-way axle bowl group is bolted on the external screw thread respectively, and the fire-way axle bowl group is fire-way axle bowl described in above-mentioned any one
Group is provided with fix stopper between the upper section and fluted disc.
It is preferred that the shelves part close to the fire-way axle bowl group of lower section is first grade of part, the shelves part close to the fire-way axle bowl group of upper section is the
Two grades of parts.
It is preferred that the end of first grade of part is additionally provided with lock washer and tightens nut, the nut of tightening is screwed onto
On the external screw thread of mandrel, gasket is provided between the fluted disc and second gear part.
The beneficial effects of the present invention are:
Fire-way axle bowl group structure positioned at mandrel both ends is not quite similar, and one uses first grade of part structure, and one uses second gear part
Structure, wherein increase bushing between bearing and each shelves part newly, each bearing is enable to fit closely with each shelves part, enable its wall surface
That is abutted against is closer, and is not likely to produce gap, and further, each bearing and each shelves part in hollow Five-way tube body in can closely tie
The problems such as closing, there is preferable positioning degree after assembling, and be not to generate the shaking of component, offset.Connected crank uses lower section
With mandrel integrated formed structure, and upper section and mandrel are detachably connected, easy to assembly, and assembly efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ball bowl group of existing design；
Fig. 2 is the exploded perspective view of a pair of of fire-way axle bowl group of the invention；
Fig. 3 is the assembling stereogram of a pair of of fire-way axle bowl group of the invention；
Fig. 4 is the cross-sectional view of Fig. 3；
Fig. 5 is the partial enlargement diagram of Fig. 4；
Fig. 6 is the structural schematic diagram of bicycle pedals crank assemblies；
The mark meaning of attached drawing is as follows:
1: ball bowl seat；2: ball bearing；3: sealing ring；4: shelves part；
20: hollow Five-way tube body；21: Five-way tube inner ring surface；30: bearing bowl seat；31: bearing bowl seat outer ring surface；311: the first ranks
Bench；312: second-order bench；32: bearing bowl seat inner ring surface；40: bearing；41: outer race face；42: bearing inner ring face；50:
Bushing；51: bushing outer ring surface；52: bushing inner ring surface；60: shelves part；60A: the first grade of part；60B: second gear part；61,61A,
61B: body portion；611A, 611B: shelves part anchor ring；62,62A, 62B: head；70: lock washer；80: tightening nut；90: mandrel；
100: fluted disc；110: gasket；120: connected crank.
Specific embodiment
Technical solution of the present invention is described in further detail with specific embodiment with reference to the accompanying drawing, so that ability
The technical staff in domain can better understand the present invention and can be practiced, but illustrated embodiment is not as to limit of the invention
It is fixed.
As in Figure 2-4, a kind of fire-way axle bowl group, including bearing 40, shelves part 60 and it is inserted in hollow 20 end of Five-way tube body
The bearing bowl seat 30 of inside further includes bushing 50, and hollow Five-way tube body 20 has a Five-way tube inner ring surface 21, when a pair of of fire-way axle bowl
When group is applied on bicycle, each fire-way axle bowl group is socketed in the end of hollow 20 two sides of Five-way tube body.Bearing bowl seat 30 is set to
The inside of hollow 20 one end of Five-way tube body, with one be resisted against the Five-way tube inner ring surface 21 bearing bowl seat outer ring surface 31 and
One in contrast to the bearing bowl seat outer ring surface 31 bearing bowl seat inner ring surface 32.
Bearing 40 is set in the bearing bowl seat inner ring surface 32 of bearing bowl seat 30 with being able to rotate, and inner wall has a bearing inner ring
Face 42, outer surface are outer race face 41.The bush body of bushing 50 is in hollow cylindrical shape, in one end of bush body
It is provided with flange, the inner and outer surfaces of bush body respectively correspond bushing inner ring surface 52 and bushing outer ring surface 51,50 tight fit of bushing
Ground is mounted on the inside of bearing 40.
Wherein, the bearing 40 is arranged between the bushing outer ring surface 51 of bushing 50 and bearing bowl seat 30, the shelves part 60
One end be provided with flange, the other end of shelves part 60 is hollow cylindrical shape shell, the shell of the shelves part 60 be provided with
The corresponding internal screw thread of 90 external screw thread of mandrel, the shelves part 60 is socketed in bushing inner ring surface 52 and the flange and bushing of shelves part 60
50 flange fitting, shelves part 60 are tightly mounted on the inside of bushing 50, have the shelves part sticked to bushing inner ring surface 52
Anchor ring, the two face contact.
It is preferred that bushing 50 is plastic bushing 50, for example engineering plastic material can be selected, it is not only at low cost, moreover, weight
Gently.It is preferred that being not quite similar applied to a pair of of fire-way axle bowl group structure on bicycle, first grade of part 60A structure can be used with one end,
And the other end uses second gear part 60B structure, is described in detail with reference to the accompanying drawing.
First grade of part 60A includes hollow cylindrical shape body portion 61A and flange head 62A, the body of first grade of part 60A
Portion is bonded in smooth shelves part anchor ring 611A, the shelves part anchor ring 611A and corresponding bushing inner ring surface 52.Second gear part 60B packet
Hollow cylindrical shape body portion 61B and flange head 62B are included, the body portion of the second gear part 60B is in smooth shelves part anchor ring
611B, the shelves part anchor ring 611B and bushing inner ring surface 52 are bonded.
That is, the body portion of shelves part can use the structure of cylindrical shape body portion 61A, cylindrical shape body portion can also be used
The structure of 61B, and head can use the structure of flange head 62A, can also use the structure of flange head 62B, wherein mark
It number is one group containing A, label is one group there are also B.In Fig. 2, first grade of part 60A includes a body with this grade of part anchor ring
The head in portion and a connection body portion, the head are hexagon.
Second gear part 60B with fluted disc end for connecting, it is preferable therefore that the head of second gear part 60B is rounded or approximate circle
Shape shape, the head of the second gear part 60B are evenly equipped with several notches, and in Fig. 3, the quantity of notch is 3 and is evenly arranged on the
The head of two grades of part 60B.
As described above, bearing bowl seat 30 has a bearing bowl seat outer ring surface for being resisted against hollow 20 inner ring surface of Five-way tube body
31 and one in contrast to bearing bowl seat outer ring surface 31 bearing bowl seat inner ring surface 32, it is preferable that the bearing bowl seat outer ring surface 31 and axis
Hold that bowl seat inner ring surface 32 is stepped, the bearing bowl seat outer ring surface 31 includes connected the first ladder section 311 and second-order
Bench 312, outer diameter of the outer diameter less than the first ladder section 311 of the second-order bench 312, the end of the first ladder section 311
Portion is provided with the flange that can be engaged with hollow 20 end of Five-way tube body, and 311 tight fit of the first ladder section is resisted against Five-way tube inner ring
Face 21.
It is corresponding, as shown in fig. 6, a kind of bicycle pedals crank assemblies, including connected crank 120, fluted disc 100 and hollow
Five-way tube body 20, the connected crank 120 include lower section, mandrel 90 and the upper section being sequentially connected, the lower section and mandrel 90 1
Body formed, upper section and mandrel 90 are threadably detachably connected, and the both ends of the mandrel 90 are provided with external screw thread, the outer spiral shell
A fire-way axle bowl group is bolted on line respectively, the fire-way axle bowl group is fire-way axle bowl group described in above-mentioned any one, the upper section
Fix stopper is provided between fluted disc 100.
It is preferred that the shelves part 60 close to the fire-way axle bowl group of lower section is first grade of part 60A, close to the shelves part of the fire-way axle bowl group of upper section
60 is in second gear part 60B, Fig. 6, the end of first grade of part 60A are additionally provided with lock washer 70 and tighten nut 80, institute
It states and tightens nut 80 and be screwed on the external screw thread of mandrel 90, be provided with gasket 110 between the fluted disc 100 and second gear part 60B.
The present invention is introduced in 2-5 with reference to the accompanying drawing.
A kind of fire-way axle bowl group structure provided in this embodiment is suitable for a hollow Five-way tube body 20 and uses, the hollow Five-way tube
Body 20 is in pipe body shape and is the junction of bicycle lower component, which places for a mandrel 90, and has
There is a Five-way tube inner ring surface 21, a pair of of fire-way axle bowl group structure includes two bearings bowl seat 30, two bearings 40, two bushings 50 and two grades
Part 60, in which:
The stepped ring body of two bearings bowl seat 30 and hollow 20 both ends of Five-way tube body are inserted in a manner of tight fit respectively
Inside, respectively the bearing bowl seat 30 has a bearing bowl seat outer ring surface 31 for being resisted against the Five-way tube inner ring surface 21 and one opposite
In the bearing bowl seat inner ring surface 32 of the bearing bowl seat outer ring surface 31.In the present embodiment, each bearing bowl seat outer ring surface 31 and bearing bowl
Seat inner ring surface 32 is stepped, and forms a tight fit and be resisted against the first ladder section 311 of the Five-way tube inner ring surface 21, Ji Yilian
It connects the first ladder section 311 and is less than the second-order bench 312 of 311 outer diameter of the first ladder section, pass through each bearing bowl seat outer ring
Face 31 and the stepped design of bearing bowl seat inner ring surface 32, can be efficiently located, and each bearing bowl seat 30 is avoided to assemble
Deformation is generated when hollow 20 inside of Five-way tube body, in addition, such structure is easily assembled at the bearing 40 in bearing bowl seat
In anchor ring 32.
The two bearings 40 are respectively arranged in the bearing bowl seat inner ring surface 32 of two bearings bowl seat 30 with being able to rotate, and each bearing 40 has
Have an outer race face 41 sticked to bearing bowl seat inner ring surface 32 and one in contrast to the outer race face 41 bearing inner ring face
42, outer race face 41 can be rotated relative to the bearing inner ring face 42.In the present embodiment, outer race face 41 and bearing inner ring face 42
It directly contacts for smooth surface, and slidably rotates, outer race face 41 and bearing bowl seat inner ring surface 32 are face contact.
Two bushing 50 fastens the inside for being ordinatedly inserted in two bearings 40 respectively, and respectively the set 50 has one and bearing inner ring
Bushing outer ring surface 51 that face 42 sticks to and one in contrast to the bushing outer ring surface 51 bushing inner ring surface 52.In the present embodiment, this two
Bushing 50 is plastic ejection moulding, it is made to reduce material cost and more lightweight, so reach stable structure, convenient for volume production and
Reduce the purpose of cost.
Two grades of parts 60 fasten the inside that cooperation is mounted on two bushings 50 respectively, and each shelves part 60 has one and bushing inner ring surface
The 52 shelves part anchor rings sticked to, two grades of 60 systems of part are bolted in the mandrel 90 from 90 two sides of mandrel respectively, and each shelves part 60 has
One tight fit supports the body portion 61 of the bushing inner ring surface 52 and the head 62 in a connection body portion 61.In the present embodiment, this two grades
Part 60 be respectively first grade of part 60A(or be left shelves part) and second gear part 60B(or be right shelves part), wherein this first grade
The head 62B structure of the head 62A of part 60A and second gear part 60B is not identical, the body portion 61A and second gear part of first grade of part 60A
The body portion 61B of 60B is identical, wherein the body portion 61A of first grade of part 60A has to be sticked to the bushing inner ring surface 52 of corresponding bushing 50
The body portion 61B of shelves part anchor ring 611A, second gear part 60B there is the shelves part ring that sticks to the bushing inner ring surface 52 of corresponding bushing 50
The head 62A system of face 611B, first grade of part 60A are in hexagon, and the head 62B system of second gear part 60B is in similar round, and
Recessed three notches inside are equally spaced between each notch, and it is locking sequentially to configure one by the head 62A of first grade of part 60A
Washer 70 and one abut against the lock washer 70 hexagonal tighten nut 80, be hexagon by the head 62A of first grade of part 60A
Setting achieve the purpose that prevent from loosening conducive to tool is set using lock and the hexagonal tightens 80 pairs of nut locks.
Fire-way axle bowl group structure positioned at 90 both ends of mandrel is not quite similar, and one uses first grade of part 60A structure, a use
Second gear part 60B structure, wherein increase bushing 50 between bearing 40 and each shelves part newly, keep each bearing 40 and each shelves part close
Fitting, enables its wall surface to be abutted against closer, and is not likely to produce gap, and further, each bearing 40 is with each shelves part in hollow
It can combine closely in Five-way tube body 20, there is preferable positioning degree after assembling, and shaking, the offset etc. that are not to generate component are asked
Topic.Connected crank 120 uses lower section and 90 integrated formed structure of mandrel, and upper section and mandrel 90 are detachably connected, easy to assembly,
Assembly efficiency is high.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure made by bright specification and accompanying drawing content perhaps equivalent process transformation or be directly or indirectly used in other correlation
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of fire-way axle bowl group, including bearing (40), shelves part (60) and the axis for being inserted in hollow Five-way tube body (20) tip inside
Hold bowl seat (30), which is characterized in that further include bushing (50), one end of the bushing (50) is provided with flange, the bearing
(40) it is arranged between the bushing outer ring surface (51) and bearing bowl seat (30) of bushing (50), one end of the shelves part (60) is provided with
Flange, the shelves part (60) are provided with internal screw thread corresponding with mandrel (90) external screw thread, and the shelves part (60) is socketed in bushing
In inner ring surface (52) and the flange of the flange of shelves part (60) and bushing (50) is bonded.
2. a kind of fire-way axle bowl group according to claim 1, which is characterized in that the bushing (50) is plastic bushing (50).
3. a kind of fire-way axle bowl group according to claim 1, which is characterized in that the shelves part (60) is first grade of part (60A),
First grade of part (60A) includes hollow cylindrical shape body portion (61A) and flange head (62A), first grade of part (60A)
Body portion be in smooth shelves part anchor ring (611A), the shelves part anchor ring (611A) and bushing inner ring surface (52) are bonded.
4. a kind of fire-way axle bowl group according to claim 1, which is characterized in that the shelves part (60) is second gear part (60B),
The second gear part (60B) includes hollow cylindrical shape body portion (61B) and flange head (62B), the second gear part (60B)
Body portion be in smooth shelves part anchor ring (611B), the shelves part anchor ring (611B) and bushing inner ring surface (52) are bonded.
5. a kind of fire-way axle bowl group according to claim 4, which is characterized in that the head of the second gear part (60B) is in circle
The head of shape or approximate circular shape, the second gear part (60B) is evenly equipped with several notches.
6. a kind of fire-way axle bowl group according to claim 5, which is characterized in that the quantity of the notch is 3.
7. a kind of fire-way axle bowl group according to claim 3 or 4, which is characterized in that the bearing bowl seat (30) has one to support
The bearing bowl seat outer ring surface (31) and one of hollow Five-way tube body (20) inner ring surface is against in contrast to bearing bowl seat outer ring surface (31)
Bearing bowl seat inner ring surface (32), the bearing bowl seat outer ring surface (31) and bearing bowl seat inner ring surface (32) are stepped, described
Bearing bowl seat outer ring surface (31) includes connected the first ladder section (311) and second-order bench (312), the second-order bench
(312) outer diameter less than the first ladder section (311) outer diameter, the end of the first ladder section (311) be provided with can with it is hollow
The flange of Five-way tube body (20) end engaging.
8. a kind of bicycle pedals crank assemblies, including connected crank (120), fluted disc (100) and hollow Five-way tube body (20), institute
Stating connected crank (120) includes the lower section being sequentially connected, mandrel (90) and upper section, and the lower section and mandrel (90) are integrally formed,
The both ends of the mandrel (90) are provided with external screw thread, are bolted with a fire-way axle bowl group on the external screw thread respectively, which is characterized in that
The fire-way axle bowl group is fire-way axle bowl group described in claim 1-7 any one, is provided between the upper section and fluted disc (100)
Fix stopper.
9. a kind of bicycle pedals crank assemblies according to claim 8, which is characterized in that close to the fire-way axle bowl group of lower section
Shelves part (60) be first grade of part (60A), close to upper section fire-way axle bowl group shelves part (60) be second gear part (60B).
10. a kind of bicycle pedals crank assemblies according to claim 9, which is characterized in that first grade of part (60A)
End be additionally provided with lock washer (70) and tighten nut (80), the outer spiral shell tightened nut (80) and be screwed onto mandrel (90)
On line, gasket (110) are provided between the fluted disc (100) and second gear part (60B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036902.3A CN109649565A (en) | 2019-01-15 | 2019-01-15 | A kind of fire-way axle bowl group and bicycle pedals crank assemblies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036902.3A CN109649565A (en) | 2019-01-15 | 2019-01-15 | A kind of fire-way axle bowl group and bicycle pedals crank assemblies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109649565A true CN109649565A (en) | 2019-04-19 |
Family
ID=66118909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910036902.3A Pending CN109649565A (en) | 2019-01-15 | 2019-01-15 | A kind of fire-way axle bowl group and bicycle pedals crank assemblies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109649565A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114954762A (en) * | 2022-06-20 | 2022-08-30 | 句容志新精密五金零件有限公司 | Vehicle five-way pipe body with high impact resistance |
-
2019
- 2019-01-15 CN CN201910036902.3A patent/CN109649565A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114954762A (en) * | 2022-06-20 | 2022-08-30 | 句容志新精密五金零件有限公司 | Vehicle five-way pipe body with high impact resistance |
| CN114954762B (en) * | 2022-06-20 | 2023-10-10 | 句容志新精密五金零件有限公司 | Five-way pipe body with high impact resistance for vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7955186B2 (en) | Golf club and shaft replacing method | |
| CN105328600B (en) | Follow-up positioning and locking mechanism for ball head | |
| CN201706099U (en) | Quick hoop | |
| CN109649565A (en) | A kind of fire-way axle bowl group and bicycle pedals crank assemblies | |
| CN212353448U (en) | Bicycle spoke fixing structure | |
| CN207364069U (en) | A kind of locking dirt-proof boot and dust-proof nut assembly | |
| CN209667299U (en) | A kind of fire-way axle bowl group and bicycle pedals crank assemblies | |
| US5865069A (en) | Light-weight bicycle handlebar stem for use with non-threaded fork tubes | |
| CN205578467U (en) | Novel nut | |
| CN203548551U (en) | Limit rotary shaft | |
| US20070137429A1 (en) | Pedal device for cycling apparatus | |
| CN207814176U (en) | Combined nut | |
| CN202914501U (en) | Novel fastening bolt | |
| CN211568216U (en) | Mid-motor and bicycle with mid-motor | |
| CN213235766U (en) | Locking fastening assembly that moves with bearing structure | |
| CN201998743U (en) | Automobile hub bearing unit | |
| CN201258065Y (en) | Improved vehicle head bowl group rolling mechanism | |
| CN209510873U (en) | Bolt assembly is used in chair bottom connection | |
| CN206017382U (en) | A kind of bolt with increase threaded rod size | |
| CN210106379U (en) | Bolt for wooden furniture | |
| CN201027733Y (en) | Novel pipe coupling structure | |
| CN205440650U (en) | Buckle structure is used in installation of back goods shelves | |
| CN205715168U (en) | A kind of efficiently fastening bolt | |
| CN221268821U (en) | Gluing device for solar photovoltaic panel | |
| TWM578265U (en) | Five-way bowl set and bicycle pedal crank assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |