CN2199070Y - Fixator for middle axle sleeve - Google Patents
Fixator for middle axle sleeve Download PDFInfo
- Publication number
- CN2199070Y CN2199070Y CN 94217998 CN94217998U CN2199070Y CN 2199070 Y CN2199070 Y CN 2199070Y CN 94217998 CN94217998 CN 94217998 CN 94217998 U CN94217998 U CN 94217998U CN 2199070 Y CN2199070 Y CN 2199070Y
- Authority
- CN
- China
- Prior art keywords
- free end
- pipe
- swivel nut
- sheathed
- sleeve pipe
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a fixing device of a middle axle casing pipe, which comprises a bicycle five-way pipe and a middle axle casing pipe which is arranged between the five-way pipe and a middle axle, wherein, one end of the middle axle casing pipe is a fixed end which is provided with male threads, and the other end of the middle axle casing pipe is a free end. A movable thread sleeve is sheathed on the outer side of the free end. A soft gasket is arranged between the periphery wall of the outer side of the free end of the middle axle casing pipe and the inner wall of the movable thread sleeve. The outside diameter of the soft gasket is slightly larger than the inside diameter of the movable thread sleeve. The movable thread sleeve after assembled has good effect of tightness and positioning.
Description
The utility model relates to a kind of bottom bracket axle pipe fixing device.
In bicycle component, the five-way pipe is in order to connect the body of pipe, back vent, seat cushion vertical tube, its inside can place an axis, the sheathed more outward axis sleeve pipe of axis, use and be fixed in the five-way pipe, and cross at axis two ends in the five-way pipe and each in conjunction with a crank to set firmly pedal, can make sprocket rotation by pushes pedals, and cooperate chain to drive flywheel to turn a wheel and advance; The assembly situation of existing axis sleeve pipe and axis then sees also shown in Figure 3, axis 30 is to be placed through in the axis sleeve pipe 10, be fixed in the five-way pipe 40 by axis sleeve pipe 10 again, wherein, one end of axis sleeve pipe 10 is the fixed end 11 with external screw thread, end then is a free end 12 in addition, during assembling, the free end 12 that external diameter is less passes five-way pipe 40, and mat fixed end 11 spiral shells are solid, then be sheathed on outside the free end 12 with a movable swivel nut 20, and be fixed at an end of five-way pipe 40, and make a noise for preventing that axis sleeve pipe 10 heavy curtain in movable swivel nut 20 from moving, and get a preferred positioning effect, so the cooperation of axis sleeve pipe 10 and movable swivel nut 20 needs accurate and be easy to screw lock.
And because movable swivel nut 20 is directly to be sheathed on axis sleeve pipe 10 free ends 12, so whether both out of roundness and size accurately will directly influence its assembly situation, if the relatively poor or size inaccuracy of out of roundness, will cause can't be sheathed, or produce excessive gap and the shortcoming that makes a noise, be with, for asking both out of roundness and size within the specific limits, certainly will there be accurate Fabricating machinery and quality management just can reach, promptly cause the increase of manufacturing cost thus.
And from the above, existing bottom bracket axle pipe fixing device very easily causes the difficulty on making and assembling, and increases builder's cost on foot, and the necessity that is improved is arranged in fact.
For improving above-mentioned shortcoming, main purpose of the present utility model is: a kind of bottom bracket axle pipe fixing device is provided, it is to establish a soft packing ring between the free end of axis sleeve pipe and movable swivel nut inwall, by the elastomeric soft packing ring of this tool movable swivel nut is formed a packing effect, to reach the preferred positioning effect.
Another purpose of the present utility model is: a kind of bottom bracket axle pipe fixing device is provided, described movable swivel nut not with the direct fit of the free end of axis sleeve pipe, so be not subjected to the influence of out of roundness, be easy to process, organize upright kenel as long as relative accessory in tolerance dimension requires, can reach.
For reaching above-mentioned purpose, the utility model provides a kind of bottom bracket axle pipe fixing device, comprise bicycle five-pipe and be sheathed on axis sleeve pipe between five-way pipe and the axis, this axis sleeve pipe one end is the fixed end with external screw thread, end is free end in addition, outer and the sheathed one movable swivel nut of this free end is characterized in that: be provided with soft packing ring between this axis sleeve pipe free end outer perimeter wall and this activity swivel nut inwall.
The purpose of this practical newline type can also following mode reach: described bottom bracket axle pipe fixing device, it is characterized in that: this axis sleeve pipe free end outer perimeter wall is provided with several radial groove, in groove, be embedded described soft packing ring, and sheathed soft washer outer diameter is greater than the internal diameter of this activity swivel nut.
Described bottom bracket axle pipe fixing device is characterized in that: the internal diameter ora terminalis of this activity swivel nut is provided with and is beneficial to the lead angle of cutting sth. askew that is inserted in screw lock.
Implement after the above-mentioned technical conceive, the utility model can be changed the shortcoming of prior art and reach many effects, for example:
1. locating effect is good: because movable swivel nut is to be sheathed on outside the elastomeric soft packing ring, make the distortion back form a packing effect in soft packing ring to movable swivel nut inwall, so locating effect is good.
2. anti-loosing effect is good: because the movable screw cover is sheathed on outside the soft packing ring, and form the packing effect, when it was subjected to the great influence of dashing of road bump and beats, this soft packing ring can effectively absorb towards brisance, reached anti-loosing effect and avoided producing the situation of noise.
3. be easy to make, assemble: directly be sheathed on outside the axis sleeve pipe free end because movable swivel nut is non-, but be sheathed on outside the deformable soft packing ring, so reasonably can reach manufacturing and assembling effect in the production tolerance, the precision that shows more in the past requires to be easier to make, and can reduce fraction defective and raise the efficiency.
Further specify architectural feature of the present utility model and purpose below in conjunction with accompanying drawing.
Brief Description Of Drawings:
Fig. 1 is a partly cutaway view of outward appearance of the present utility model.
Fig. 2 is a plane of the present utility model sectional exploded view.
Fig. 3 closes the enforcement illustration for existing axis sleeve pipe set of planes.
See also shown in Figure 1, bottom bracket axle pipe fixing device provided by the utility model, be to be made as fixed end 11 with external screw thread in axis sleeve pipe 10 1 ends, and end is free end 12 in addition, and outside this free end 12 sheathed one movable swivel nut 20, the utility model can be established several radial groove 121 in these free end 12 perisporiums, and is embedded soft packing ring 122 in groove 121, then sheathed movable screw cover 20 outside soft packing ring 122 again.
The free end 12 of above-mentioned axis sleeve pipe 10, soft packing ring 122, and the interrelation of movable swivel nut 20 then sees also shown in Figure 2, if the external diameter of free end 12 is B, and soft packing ring 122 external diameters after sheathed are C, and C is slightly larger than B, and the internal diameter of movable swivel nut 20 is A, and A is slightly larger than B and is slightly less than C, that is three's magnitude relationship is C＞A＞B, though the external diameter C of soft packing ring 122 is slightly larger than the internal diameter A of movable swivel nut 20, but because soft packing ring 122 is a deformable elastic body, so still can supply movable swivel nut 20 sheathed compressings, and the elasticity of the soft packing ring 122 desire reinstatements of mat and form the packing effect, its locating effect increased; In addition for movable swivel nut 20 more easily is inserted in, the spy is made as the lead angle 21 of cutting sth. askew in its internal diameter ora terminalis, the guide function that is easy to be inserted in formation.
From the above, bottom bracket axle pipe fixing device provided by the utility model, because soft packing ring 122 is to be located between the outer wall of movable swivel nut 20 and free end 12, so both are direct contact not, so the precision requirement for size is unlikely too high, and be easy to make and assembling, and soft packing ring 122 has more elasticity and can form shock-proof effect.
Claims (3)
1, a kind of bottom bracket axle pipe fixing device, comprise bicycle five-pipe and be sheathed on axis sleeve pipe between five-way pipe and the axis, this axis sleeve pipe one end is the fixed end with external screw thread, and end is free end in addition, outer and the sheathed one movable swivel nut of this free end is characterized in that:
Be provided with soft packing ring between this axis sleeve pipe free end outer perimeter wall and this activity swivel nut inwall.
2, bottom bracket axle pipe fixing device according to claim 1, it is characterized in that: this axis sleeve pipe free end outer perimeter wall is provided with several radial groove, in groove, be embedded described soft packing ring, and sheathed soft washer outer diameter is greater than the internal diameter of this activity swivel nut.
3, bottom bracket axle pipe fixing device according to claim 1 and 2 is characterized in that: the internal diameter ora terminalis of this activity swivel nut is provided with and is beneficial to the lead angle of cutting sth. askew that is inserted in screw lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217998 CN2199070Y (en) | 1994-07-15 | 1994-07-15 | Fixator for middle axle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217998 CN2199070Y (en) | 1994-07-15 | 1994-07-15 | Fixator for middle axle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199070Y true CN2199070Y (en) | 1995-05-31 |
Family
ID=33833298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94217998 Expired - Fee Related CN2199070Y (en) | 1994-07-15 | 1994-07-15 | Fixator for middle axle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199070Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165721A (en) * | 2018-12-13 | 2021-07-23 | 百佳车辆有限公司 | Electric vehicle |
-
1994
- 1994-07-15 CN CN 94217998 patent/CN2199070Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165721A (en) * | 2018-12-13 | 2021-07-23 | 百佳车辆有限公司 | Electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |