CN203331731U - Quick-disassembling elongated hub - Google Patents

Quick-disassembling elongated hub Download PDF

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Publication number
CN203331731U
CN203331731U CN2013204075385U CN201320407538U CN203331731U CN 203331731 U CN203331731 U CN 203331731U CN 2013204075385 U CN2013204075385 U CN 2013204075385U CN 201320407538 U CN201320407538 U CN 201320407538U CN 203331731 U CN203331731 U CN 203331731U
Authority
CN
China
Prior art keywords
bearing
cot
hollow core
axle
clutch shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2013204075385U
Other languages
Chinese (zh)
Inventor
熊亚平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CIXI GULI BICYCLE Co Ltd
Original Assignee
CIXI GULI BICYCLE Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CIXI GULI BICYCLE Co Ltd filed Critical CIXI GULI BICYCLE Co Ltd
Priority to CN2013204075385U priority Critical patent/CN203331731U/en
Application granted granted Critical
Publication of CN203331731U publication Critical patent/CN203331731U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A quick-disassembling elongated hub comprises a hollow mandrel and a hub shell arranged outside the hollow mandrel in a sleeved mode. The two ends of the hollow mandrel extend out of the hub shell. The hollow mandrel includes a first outer thread portion, a first bearing portion, an unthreaded hole portion, a second bearing portion and a second outer thread portion from front to back. A quick-disassembling pull rod hole is formed in the hollow mandrel, and the hollow mandrel is provided with a short bushing and a long bushing. The quick-disassembling elongated hub has the advantages that the elongated and exposed hollow mandrel is provided with the long bushing and the short bushing, the strength of the hollow mandrel is improved, the quick-disassembling pull rod hole is convenient to arrange and the disassembling speed is improved.

Description

A kind of fast disassembly type extension shaft skin
Technical field
The utility model relates to a kind of bicycle hub.
Background technology
Bicycle hub is for making axle for bicycle and wheel hub parts in relative rotation, generally comprise mandrel and be enclosed within the outer axle cot of mandrel, the axle cot is provided with front spoke seat and rear spoke seat, thereby connect cycle hub for connecting spoke, but some width of existing wheel hub is very little, thereby between front spoke seat and rear spoke seat, spacing is very little, and the width of vehicle crotch does not change, so relatively and the axle cot we need to lengthen a little mandrel, after but mandrel lengthens, intensity weakens to some extent, particularly adopts now the mandrel of quick-disassembly structure, intensity more a little less than.
Summary of the invention
In order to overcome above deficiency, the utility model provides a kind of extension shaft of the fast disassembly type with lining skin.
The technical scheme in the invention for solving the technical problem is: a kind of fast disassembly type extension shaft skin, comprise a hollow core shaft and be enclosed within the outer axle cot of hollow core shaft, described axle cot is provided with front spoke seat and rear spoke seat, described hollow core shaft two ends stretch out in the axle cot, described hollow core shaft is respectively the first external thread part from front to back, clutch shaft bearing section, unthreaded hole section, the second bearing portion, the second external thread part, described unthreaded hole section diameter is greater than clutch shaft bearing section and the second bearing portion and is forming first step with clutch shaft bearing section intersection, forming second step with the second bearing portion intersection, be provided with the quick detach tie rod hole in described hollow core shaft, on described the first external thread part, spiral shell is provided with a pair of the first nut, be arranged with clutch shaft bearing in described clutch shaft bearing section, be provided with short lining between described the first nut and clutch shaft bearing, described short lining and first step are clamped the inner ring of described clutch shaft bearing, be provided with the first top shoulder in described axle cot, described the first top shoulder is withstood in the outer ring of clutch shaft bearing, on described the second external thread part from front to back spiral shell be provided with a pair of the second nut, the described hollow core shaft of described the second nut front end is arranged with long bushing outward, be arranged with the second bearing on described the second bearing portion, the length of described the second bearing portion is greater than described the second bearing, and described long bushing and second step are clamped the inner ring of the second bearing, be provided with the second top shoulder in described axle cot, described the second top shoulder is withstood in the outer ring of the second bearing.
Thereby described the first nut and the second nut have two realize can the self-locking fixed position function, in order to spoke to be installed, thereby making the strength increase of hollow core shaft can offer the quick detach tie rod hole, the existence of described short lining and long bushing do not affect use on described front spoke seat and rear spoke seat.
For ease of connecting brake assemblies and column foot assembly, described axle cot front end is provided with disc brake and connects outside thread, and described axle cot rear end is provided with column foot and connects outside thread.
The utility model in use in the quick detach tie rod hole of hollow core shaft through quick detach, crotch is placed between quick detach two ends and the first nut, the second nut, pull quick detach, draw lever locking drive two ends quick detach crotch is fixed on hollow core shaft.
The beneficial effects of the utility model are: long bushing and short lining are installed on the exposed hollow core shaft extended, thereby are realized strengthening hollow core shaft intensity, be convenient to offer the quick detach tie rod hole quick detach raising dismounting speed is set.
The accompanying drawing explanation
Fig. 1 be embodiment of the utility model partly cut open schematic diagram.
Fig. 2 is A place partial enlarged drawing in Fig. 1.
Fig. 3 is B place partial enlarged drawing in Fig. 2.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
By reference to the accompanying drawings 1 to 3, a kind of fast disassembly type extension shaft skin, comprise a hollow core shaft 1 and be enclosed within the outer axle cot 2 of hollow core shaft 1, described axle cot 2 is provided with front spoke seat 3 and rear spoke seat 4, described hollow core shaft 1 two ends stretch out in axle cot 2, described hollow core shaft 1 is respectively the first external thread part 5, clutch shaft bearing section 6, unthreaded hole section 7, the second bearing portion 8, the second external thread part 9, described unthreaded hole section 7 diameters are greater than clutch shaft bearing section 6 and the second bearing portion 8 and are forming first steps 10 with clutch shaft bearing section 6 intersections, forming second step 11 with the second bearing portion 8 intersections, be provided with quick detach tie rod hole 12 in described hollow core shaft 1, on described the first external thread part 5, spiral shell is provided with a pair of the first nut 13, be arranged with clutch shaft bearing 14 in described clutch shaft bearing section 5, described the first nut 13 and 14 of clutch shaft bearings are provided with short lining 15, described short lining 15 and first step 10 are clamped the inner ring of described clutch shaft bearing 14, be provided with the first top shoulder 16 in described axle cot 2, described the first top shoulder 16 is withstood in the outer ring of clutch shaft bearing 14, on described the second external thread part 9 from front to back spiral shell be provided with a pair of the second nut 17, the described hollow core shaft of described the second nut 17 front end is arranged with long bushing 18 outward, be arranged with the second bearing 19 on described the second bearing portion, the length of described the second bearing portion is greater than described the second bearing 19, and described long bushing 18 and second step 11 are clamped the inner ring of the second bearing, described the second top shoulder 20 is withstood in the outer ring that is provided with the second top shoulder 20, the second bearings in described axle cot.
Thereby described the first nut 13 and the second nut 17 be provided with two realize can the self-locking fixed position function, in order to spoke to be installed, thereby making the strength increase of hollow core shaft can offer the quick detach tie rod hole, the existence of described short lining 15 and long bushing 18 do not affect use on described front spoke seat 3 and rear spoke seat 4.
For ease of connecting brake assemblies and column foot assembly, described axle cot front end is provided with disc brake and connects outside thread 21, and described axle cot rear end is provided with column foot and connects outside thread 22.
The present embodiment in use in the quick detach tie rod hole of hollow core shaft through quick detach, crotch is placed between quick detach two ends and the first nut, the second nut, pull quick detach, draw lever locking drive two ends quick detach crotch is fixed on hollow core shaft.
The beneficial effect of the present embodiment is: long bushing and short lining are installed on the exposed hollow core shaft extended, thereby are realized strengthening hollow core shaft intensity, be convenient to offer the quick detach tie rod hole quick detach raising dismounting speed is set.

Claims (2)

1. a fast disassembly type extension shaft skin, comprise a hollow core shaft and be enclosed within the outer axle cot of hollow core shaft, described axle cot is provided with front spoke seat and rear spoke seat, described hollow core shaft two ends stretch out in the axle cot, described hollow core shaft is respectively the first external thread part, clutch shaft bearing section, unthreaded hole section, the second bearing portion, the second external thread part from front to back, and described unthreaded hole section diameter is greater than clutch shaft bearing section and the second bearing portion and is forming first step, with the second bearing portion intersection, forming second step with clutch shaft bearing section intersection; It is characterized in that: be provided with the quick detach tie rod hole in described hollow core shaft, on described the first external thread part, spiral shell is provided with a pair of the first nut, be arranged with clutch shaft bearing in described clutch shaft bearing section, be provided with short lining between described the first nut and clutch shaft bearing, described short lining and first step are clamped the inner ring of described clutch shaft bearing, be provided with the first top shoulder in described axle cot, described the first top shoulder is withstood in the outer ring of clutch shaft bearing; On described the second external thread part from front to back spiral shell be provided with a pair of the second nut, the described hollow core shaft of described the second nut front end is arranged with long bushing outward, be arranged with the second bearing on described the second bearing portion, the length of described the second bearing portion is greater than described the second bearing, and described long bushing and second step are clamped the inner ring of the second bearing; Be provided with the second top shoulder in described axle cot, described the second top shoulder is withstood in the outer ring of the second bearing.
2. fast disassembly type extension shaft skin according to claim 1 is characterized in that: described axle cot front end is provided with brake and connects outside thread, and described axle cot rear end is provided with column foot and connects outside thread.
CN2013204075385U 2013-07-10 2013-07-10 Quick-disassembling elongated hub Expired - Fee Related CN203331731U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013204075385U CN203331731U (en) 2013-07-10 2013-07-10 Quick-disassembling elongated hub

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013204075385U CN203331731U (en) 2013-07-10 2013-07-10 Quick-disassembling elongated hub

Publications (1)

Publication Number Publication Date
CN203331731U true CN203331731U (en) 2013-12-11

Family

ID=49700428

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013204075385U Expired - Fee Related CN203331731U (en) 2013-07-10 2013-07-10 Quick-disassembling elongated hub

Country Status (1)

Country Link
CN (1) CN203331731U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112476088A (en) * 2020-10-23 2021-03-12 常州富兴机电有限公司 Hollow shaft rotor grinding device of stepping motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112476088A (en) * 2020-10-23 2021-03-12 常州富兴机电有限公司 Hollow shaft rotor grinding device of stepping motor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131211

Termination date: 20140710

EXPY Termination of patent right or utility model