CN204355208U - A kind of sport car waterproof and dustproof chain wheel - Google Patents
A kind of sport car waterproof and dustproof chain wheel Download PDFInfo
- Publication number
- CN204355208U CN204355208U CN201420796509.7U CN201420796509U CN204355208U CN 204355208 U CN204355208 U CN 204355208U CN 201420796509 U CN201420796509 U CN 201420796509U CN 204355208 U CN204355208 U CN 204355208U
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- axis
- groove
- right crank
- chain wheel
- sport car
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Abstract
The utility model discloses a kind of sport car waterproof and dustproof chain wheel, comprise right crank, fluted disc and axis, right crank and fluted disc are fixed together, axis is by first end, the second end and the axis body between first end and the second end formed, the first end of axis and the outside face of the second end are processed with axial groove, the groove outer surface diameter of the first end of axis is greater than the diameter of axis body, right crank is provided with and coordinates with the groove of the first end of axis and the blind hole closed of the outer face with interior groove, the inwall of blind hole near axis one end is provided with can with the knock hole being set in the spacer of axis body on the first end side of axis and matching, be provided with in knock hole after spacer generation deformation for the annular groove that its front end is inserted.Through hole on traditional right crank is set to blind hole by the utility model, can prevent extraneous dirt and water from entering into the cooperation place of axis and right crank, avoid dust and ponding to affect the proper engagement of axis and right crank.
Description
Technical field
The utility model relates to chain wheel field, particularly a kind of sport car waterproof and dustproof chain wheel.
Background technology
Along with socioeconomic development, the requirement of people to material life is more and more higher, and wherein a kind of product of sport car to be people assert high-grade material life, so sport car not only needs to embody it in speed and is worth, also need on appearance property, embody it further and be worth.Chain wheel is as the necessary accessory of sport car, and the quality of its quality directly has influence on the value of sport car.The right crank of current sport car chain wheel offers for axis through coordinating fixing through hole, toothed surface cooperation place on the through-hole wall of the sport car chain wheel of this structure and right crank end face periphery easily intakes or enters dirt, not only affect coordinating of axis and right crank, but also easily cause sport car chain wheel to pile up dust and sewage, have impact on aesthetic feeling and the class of sport car entirety.
Utility model content
The purpose of this utility model is easily to intake into the deficiency of dirt and defect for existing chain wheel, provides a kind of sport car waterproof and dustproof chain wheel, to solve the problem.
The technical matters that the utility model solves can realize by the following technical solutions:
A kind of sport car waterproof and dustproof chain wheel, comprise right crank, fluted disc and axis, described right crank and described fluted disc are fixed together, described axis is by first end, the second end and the axis body between first end and the second end formed, the first end of described axis and the outside face of the second end are processed with axial groove, the groove outer surface diameter of the first end of described axis is greater than the diameter of described axis body, it is characterized in that, described right crank is provided with and coordinates with the groove of the first end of described axis and the blind hole closed of the outer face with interior groove, the inwall of described blind hole near described axis one end is provided with can with the knock hole being set in the spacer of described axis body on the first end side of described axis and matching, be provided with in described knock hole after described spacer generation deformation for the annular groove that its front end is inserted.
In a preferred embodiment of the present utility model, the first end of described axis is pyramidal structure towards the end face arranged outside of described blind hole.
In a preferred embodiment of the present utility model, described spacer is annular slice, its external diameter is greater than the diameter of the interior groove through hole of described blind hole, and described spacer internal diameter is slightly larger than the external diameter of described axis body, and the groove outer surface diameter of the second end of described axis is suitable with the external diameter of axis body.
In a preferred embodiment of the present utility model, the junction of described axis body and described first end is arc-shaped transition structure.
In a preferred embodiment of the present utility model, described spacer adopts aluminium or aluminum alloy materials to make.
Owing to have employed technical scheme as above, through hole on traditional right crank is set to blind hole by the utility model, can prevent extraneous dirt and water from entering into the cooperation place of axis and right crank, dust and ponding is avoided to affect the proper engagement of axis and right crank, improve sport car performance, prevent sport car chain wheel from piling up dust and sewage thus reduce aesthetic feeling and the class of sport car entirety.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the decomposition texture schematic diagram of a kind of embodiment of the utility model.
Fig. 2 is the structural representation after the assembling of a kind of embodiment of the utility model.
Fig. 3 is the I place enlarged diagram of Fig. 2.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, setting forth the utility model further below.
See a kind of sport car waterproof and dustproof chain wheel shown in Fig. 1 and Fig. 2, comprise the spacer 400 of right crank 100, fluted disc 200, axis 300 and annular slice, right crank 100 passes through together with rivet with fluted disc 200.
Axis 300 is made up of first end 310, the second end 320 and the axis body between first end 310 and the second end 320 330, and the first end 310 of axis 300 and the outside face of the second end 320 are processed with axial groove 311,321 respectively.Groove 321 outer surface diameter of the second end 320 of axis 300 is suitable with the external diameter of axis body 330, and groove 311 outer surface diameter of the first end 310 of axis 300 is greater than the diameter of axis body 330.
Right crank 100 is provided with the blind hole 110 coordinated with the groove 311 of the first end 310 of axis 300, and groove 112 in the inwall of blind hole 110 is provided with and coordinates with the groove 311 of first end 310, the outer face 111 of blind hole 110 is closed.Blind hole 110 is provided with knock hole 120 on the first end 310 side inwall of axis 300, is provided with annular groove 121 in knock hole 120.
The external diameter of spacer 400 is greater than the diameter of interior groove 112 through hole of blind hole 110, and spacer 400 internal diameter is slightly larger than the external diameter of axis body 330.
Assembly method of the present utility model is different from traditional assembly method with the right crank of through hole, the utility model is when assembling, the first end 310 of axis 300 is inserted in blind hole 110, groove 311 on first end 310 engages with interior groove 112, for the ease of centering and the assembling of first end 310 and blind hole 110, the first end 310 of the axis 300 in the present embodiment is pyramidal structure 312 towards the end face arranged outside of blind hole 110.Then by instrument the spacer 400 adopting aluminium or aluminum alloy materials to make is pressed into right crank 100 inside knock hole 120 in, and constantly apply pressure, spacer 400 is caused to be out of shape, shown in composition graphs 3, the front end of its deformation is inserted in annular groove 121, until the tail end end of spacer 400 is roughly concordant with right crank 100 inner surface.In order to make spacer 400 its front end in deformation process more easily insert in annular groove 121, the axis body 330 in the present embodiment is arc-shaped transition structure 340 with the junction of first end 310.
Through hole on traditional right crank is set to blind hole by the utility model, can prevent extraneous dirt and water from entering into the cooperation place of axis and right crank, dust and ponding is avoided to affect the proper engagement of axis and right crank, improve sport car performance, prevent sport car chain wheel from piling up dust and sewage thus reduce aesthetic feeling and the class of sport car entirety.
More than show and describe groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a sport car waterproof and dustproof chain wheel, comprise right crank, fluted disc and axis, described right crank and described fluted disc are fixed together, described axis is by first end, the second end and the axis body between first end and the second end formed, the first end of described axis and the outside face of the second end are processed with axial groove, the groove outer surface diameter of the first end of described axis is greater than the diameter of described axis body, it is characterized in that, described right crank is provided with and coordinates with the groove of the first end of described axis and the blind hole closed of the outer face with interior groove, the inwall of described blind hole near described axis one end is provided with can with the knock hole being set in the spacer of described axis body on the first end side of described axis and matching, be provided with in described knock hole after described spacer generation deformation for the annular groove that its front end is inserted.
2. a kind of sport car waterproof and dustproof chain wheel as claimed in claim 1, is characterized in that, the first end of described axis is pyramidal structure towards the end face arranged outside of described blind hole.
3. a kind of sport car waterproof and dustproof chain wheel as claimed in claim 1 or 2, it is characterized in that, described spacer is annular slice, its external diameter is greater than the diameter of the interior groove through hole of described blind hole, described spacer internal diameter is slightly larger than the external diameter of described axis body, and the groove outer surface diameter of the second end of described axis is suitable with the external diameter of axis body.
4. a kind of sport car waterproof and dustproof chain wheel as claimed in claim 3, is characterized in that, the junction of described axis body and described first end is arc-shaped transition structure.
5. a kind of sport car waterproof and dustproof chain wheel as claimed in claim 1, is characterized in that, described spacer adopts aluminium or aluminum alloy materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796509.7U CN204355208U (en) | 2014-12-15 | 2014-12-15 | A kind of sport car waterproof and dustproof chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796509.7U CN204355208U (en) | 2014-12-15 | 2014-12-15 | A kind of sport car waterproof and dustproof chain wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204355208U true CN204355208U (en) | 2015-05-27 |
Family
ID=53256693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420796509.7U Active CN204355208U (en) | 2014-12-15 | 2014-12-15 | A kind of sport car waterproof and dustproof chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204355208U (en) |
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2014
- 2014-12-15 CN CN201420796509.7U patent/CN204355208U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |