CN203343971U - Manual bicycle freewheel disassembly tool - Google Patents
Manual bicycle freewheel disassembly tool Download PDFInfo
- Publication number
- CN203343971U CN203343971U CN 201320429302 CN201320429302U CN203343971U CN 203343971 U CN203343971 U CN 203343971U CN 201320429302 CN201320429302 CN 201320429302 CN 201320429302 U CN201320429302 U CN 201320429302U CN 203343971 U CN203343971 U CN 203343971U
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- CN
- China
- Prior art keywords
- pretension
- rotating shaft
- hollow rotating
- bar
- hole
- 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
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Abstract
The utility model relates to a manual bicycle freewheel disassembly tool which comprises a clamp device, a fixing plate and a pre-tightening device. The clamp device comprises a clamp rod, a small gear, a large gear, a hollow rotating shaft and a chuck and is used for fixing a baffle ring of a bicycle freewheel, a through hole is formed in the left of the fixing plate, a bearing I is mounted below the right of the fixing plate, the clamp rod penetrates the through hole in the left of the fixing plate, and the pre-tightening device comprises a pre-tightening handle, a pre-tightening rod, a pre-tightening cone frustum, a sleeve and a pre-tightening sleeve cup and is used for fixing a spline in the bicycle freewheel. The manual bicycle freewheel disassembly tool has the advantages of simple structure, convenience in operation, low manufacturing cost and the like, and the bicycle freewheel can be disassembled.
Description
Technical field
The utility model relates to a kind of manual bicycle flywheel disassembling instrument.
Background technology
Along with people increase gradually to the demand of bicycle, nowadays, bicycle is visible everywhere.But, also brought the problems such as bicycle repairing simultaneously, at present, for the dismounting of bicycle freewheel, the mode that people adopt usually is with hammer, to strike to beat with punching pin, time and effort consuming so not only, and also large especially to the infringement of flywheel.Therefore, existing in the urgent need to a kind of simple in structure, easy to operate and bicycle flywheel withdrawl tool that cost of manufacture is low, i.e. a kind of manual bicycle flywheel disassembling instrument.
Summary of the invention
In order to make up the deficiencies in the prior art, the utility model provides a kind of manual bicycle flywheel disassembling instrument.
The utility model solves the technical scheme that its technical problem adopts: a kind of manual bicycle flywheel disassembling instrument, comprise positioner, fixed head and pre-tightening apparatus, it is characterized in that: described positioner comprises the screens bar, pinion, gear wheel, hollow rotating shaft and chuck, screens bar upper end is provided with the screens handle, screens bar lower end is connected by key with pinion, gear wheel is connected by key with hollow rotating shaft, gear wheel left side and the engagement of pinion right side, chuck is connected by key with hollow rotating shaft, hollow rotating shaft inside is provided with through hole, both sides, chuck below are symmetrically arranged with two bails, this device is for stationary bicycle flywheel baffle ring sheet, described fixed head left is provided with through hole, and its lower right is equipped with bearing I, and fixed head is connected by bearing I with hollow rotating shaft, and the screens bar is through the through hole of fixed head left, described pre-tightening apparatus comprises the pretension handle, the pretension bar, the pretension round platform, sleeve and pretension a set of cups, the pretension handle is fixed on pretension bar upper end, the pretension round platform is fixed on pretension bar lower end, pretension bar arranged outside has external screw thread, sleeve inner is provided with internal thread, pretension bar and sleeve are threaded connection, the sleeve outside is connected by interference with the hollow rotating shaft through hole, the pretension a set of cups is symmetrically arranged with three pretension hooks along central axis, pretension a set of cups top is equipped with bearing I I, the pretension a set of cups is connected by bearing I I with hollow rotating shaft, this device is for the spline of stationary bicycle flywheel inside.
The beneficial effects of the utility model are: a kind of manual bicycle flywheel disassembling instrument has the characteristics such as simple in structure, easy to operate and cost of manufacture is low, and it can realize dismantling the function of bicycle freewheel.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is full sectional view of the present utility model;
Fig. 3 is the perspective view of the utility model pretension a set of cups.
The specific embodiment
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of manual bicycle flywheel disassembling instrument described in the utility model, comprise positioner 1, fixed head 2 and pre-tightening apparatus 3, it is characterized in that: described positioner 1 comprises screens bar 101, pinion 102, gear wheel 103, hollow rotating shaft 104 and chuck 105, screens bar 101 upper ends are provided with the screens handle, screens bar 101 lower ends are connected by key with pinion 102, gear wheel 103 is connected by key with hollow rotating shaft 104, gear wheel 103 left sides and pinion 102 right side engagements, chuck 105 is connected by key with hollow rotating shaft 104, hollow rotating shaft 104 inside are provided with through hole, chuck 105 both sides, below are symmetrically arranged with two bails, this device is for stationary bicycle flywheel baffle ring sheet, described fixed head 2 lefts are provided with through hole, and its lower right is equipped with bearing I 2011, and fixed head 2 is connected by bearing I 2011 with hollow rotating shaft 104, and screens bar 101 is through the through hole of fixed head 2 lefts, described pre-tightening apparatus 3 comprises pretension handle 301, pretension bar 302, pretension round platform 303, sleeve 304 and pretension a set of cups 305, pretension handle 301 is fixed on pretension bar 302 upper ends, pretension round platform 303 is fixed on pretension bar 302 lower ends, pretension bar 302 arranged outside have external screw thread, sleeve 304 inside are provided with internal thread, pretension bar 302 is threaded connection with sleeve 304, sleeve 304 outsides are connected by interference with hollow rotating shaft 104 through holes, pretension a set of cups 305 is symmetrically arranged with three pretension hooks 3051 along central axis, pretension a set of cups 305 tops are equipped with bearing I I3011, pretension a set of cups 305 is connected by bearing I I3011 with hollow rotating shaft 104, this device is for the spline of stationary bicycle flywheel inside.
During work, at first rotate the screens handle on screens bar 101, driving pinion 102 rotates, mesh and drive gear wheel 103 rotations by gear, gear wheel 103 drives hollow rotating shaft 104 and rotates, and then drive chuck 105 rotates, treat that chuck 105 turns to suitable angle, rotate pretension handle 301, pretension bar 302 and sleeve 304 are by relatively rotating, make pretension round platform 303 move upward, three pretension hooks 3051 of pretension round platform 303 extruding pretension a set of cups 305 belows, the outside, make three pretension hooks 3051 expand laterally, and then the spline of chucking flywheel inside, rotate again the screens handle on screens bar 101, finally reach the purpose of dismounting flywheel.
Above demonstration and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; description in above-described embodiment and specification principle of the present utility model just is described; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a manual bicycle flywheel disassembling instrument, comprise positioner, fixed head and pre-tightening apparatus, it is characterized in that: described positioner comprises screens bar, pinion, gear wheel, hollow rotating shaft and chuck, screens bar upper end is provided with the screens handle, screens bar lower end is connected by key with pinion, gear wheel is connected by key with hollow rotating shaft, gear wheel left side and the engagement of pinion right side, chuck is connected by key with hollow rotating shaft, hollow rotating shaft inside is provided with through hole, and both sides, chuck below are symmetrically arranged with two bails; Described fixed head left is provided with through hole, and its lower right is equipped with bearing I, and fixed head is connected by bearing I with hollow rotating shaft, and the screens bar is through the through hole of fixed head left; Described pre-tightening apparatus comprises pretension handle, pretension bar, pretension round platform, sleeve and pretension a set of cups, the pretension handle is fixed on pretension bar upper end, the pretension round platform is fixed on pretension bar lower end, pretension bar arranged outside has external screw thread, sleeve inner is provided with internal thread, and pretension bar and sleeve are threaded connection, and the sleeve outside is connected by interference with the hollow rotating shaft through hole, pretension a set of cups top is equipped with bearing I I, and the pretension a set of cups is connected by bearing I I with hollow rotating shaft.
2. a kind of manual bicycle flywheel disassembling instrument according to claim 1, it is characterized in that: described pretension a set of cups is symmetrically arranged with three pretension hooks along central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320429302 CN203343971U (en) | 2013-07-18 | 2013-07-18 | Manual bicycle freewheel disassembly tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320429302 CN203343971U (en) | 2013-07-18 | 2013-07-18 | Manual bicycle freewheel disassembly tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203343971U true CN203343971U (en) | 2013-12-18 |
Family
ID=49743904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320429302 Expired - Fee Related CN203343971U (en) | 2013-07-18 | 2013-07-18 | Manual bicycle freewheel disassembly tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203343971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612243A (en) * | 2013-12-04 | 2014-03-05 | 天津振兴水泥有限公司 | Set bolt mounting device of kiln opening guard iron in cement plant |
| CN113400254A (en) * | 2021-05-14 | 2021-09-17 | 中国航发哈尔滨东安发动机有限公司 | Thread decomposing device of self-locking mechanism |
-
2013
- 2013-07-18 CN CN 201320429302 patent/CN203343971U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612243A (en) * | 2013-12-04 | 2014-03-05 | 天津振兴水泥有限公司 | Set bolt mounting device of kiln opening guard iron in cement plant |
| CN113400254A (en) * | 2021-05-14 | 2021-09-17 | 中国航发哈尔滨东安发动机有限公司 | Thread decomposing device of self-locking mechanism |
| CN113400254B (en) * | 2021-05-14 | 2023-01-06 | 中国航发哈尔滨东安发动机有限公司 | Thread decomposing device of self-locking mechanism |
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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: 20131218 Termination date: 20140718 |
|
| EXPY | Termination of patent right or utility model |