CN207202287U - A kind of Bracelet structure for reducing length tolerance in bracelet rear shell shell - Google Patents
A kind of Bracelet structure for reducing length tolerance in bracelet rear shell shell Download PDFInfo
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- CN207202287U CN207202287U CN201721027625.2U CN201721027625U CN207202287U CN 207202287 U CN207202287 U CN 207202287U CN 201721027625 U CN201721027625 U CN 201721027625U CN 207202287 U CN207202287 U CN 207202287U
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- bracelet
- rear shell
- shell
- somebody
- straight cutting
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Abstract
A kind of Bracelet structure for reducing length tolerance in bracelet rear shell shell, the bracelet includes working of plastics rear shell and the upholstery border for installing watchband, the left and right end portions of the upper and lower side of the working of plastics rear shell are respectively provided with straight cutting hole, and totally 4, straight cutting hole, the depth in the straight cutting hole is 2 4mm；The upholstery border is aluminium alloy decorative side, the same side on the aluminium alloy decorative side is provided with two and matches somebody with somebody zygostyle, two relative position dimensional tolerances matched somebody with somebody between zygostyle are ± 0.02mm, described two to be interference fitted with zygostyle and two straight cutting holes of the same side of the working of plastics rear shell；The aluminium alloy decorative side has two.
Description
Technical field
It the utility model is related to a kind of structure of bracelet, and in particular to a kind of to reduce length tolerance in bracelet rear shell shell
Bracelet structure.
Background technology
Smart motion bracelet is increasingly trusted by user at present, or even has become the necessary article of daily life.For
The body-sensing that increase user wears, plastic material bracelet are the material of market most of bracelets.The rear shell of bracelet is typically using note
The technique of modeling manufactures.
The volume of bracelet is very small, and inside needs to set battery, mainboard, screen and various sensors, it is therefore desirable to each
Part reasonable arrangement and cooperation, the stability that increase bracelet uses.But because plastics rear shell is in injection, by Shooting Technique
Limitation, in rear shell it is hollow be used to placing length in the shell of each type component larger tolerance, the scope one of the tolerance be present
As be ± 0.04mm（As shown in Figure 1）, so so that when installing each type component, the tension that there are, some is excessively loose
Situation, follow-up bracelet may be caused to there is a situation where to loosen when in use or ftracture.
In order that the housing for obtaining bracelet can realize dismountable assembling with watchband, set respectively in the side of the rear shell of bracelet
A upholstery border 1 has been put, has been separately provided for installing the perforation of watchband at the both ends of the upholstery border（As shown in Figure 2）,
Groove milling on the middle part of upholstery border, stamps glue in groove.The position of bone 2 is both provided with two sides of the rear shell of bracelet（Such as the institute of accompanying drawing 3
Show）, the groove on the position of bone 2 and aluminium alloy decorative side coordinates installation, in the presence of structure and glue, upholstery border 1 and working of plastics
Rear shell bonds, you can fixed upholstery border（As shown in Figure 4）.
Although the requirement for the assembling that above-mentioned method meets, can not solve the size of the rear shell of the technique making of injection
Tolerance issues（The tolerance of arrow length still has in accompanying drawing 1）.
Above- mentioned information is only used for strengthening the understanding to the background of the disclosure, therefore it disclosed in the background section
It can include not forming the information to prior art known to persons of ordinary skill in the art.
Utility model content
The utility model is in order to solve the above problems, using the structure of external calibration, there is provided one kind can reduce bracelet rear shell
The Bracelet structure of length tolerance in shell, this method need not increase other material, it is only necessary to the structure on existing parts
Change, it is possible to reach the effect for reducing length tolerance in rear shell shell, and follow-up loosening can be placed.
The technical solution of the utility model is as follows：
A kind of Bracelet structure for reducing length tolerance in bracelet rear shell shell, the bracelet include working of plastics rear shell and are used for
The upholstery border of watchband is installed, the left and right end portions of the upper and lower side of the working of plastics rear shell are respectively provided with straight cutting hole, totally 4, straight cutting hole,
The depth in the straight cutting hole is 2-4mm；The upholstery border is aluminium alloy decorative side, and the same side on the aluminium alloy decorative side is set
There are two to match somebody with somebody zygostyle, two relative position dimensional tolerances matched somebody with somebody between zygostyle be ± 0.02mm, it is described two match somebody with somebody zygostyle with it is described
Two straight cutting holes interference fit of the same side of working of plastics rear shell；The aluminium alloy decorative side has two.
Further, the depth in the straight cutting hole is 3mm.
Further, described two relative position dimensional tolerances matched somebody with somebody between zygostyle are ± 0.01mm.
Further, the unilateral interference 0.025mm of interference fit.
Further, the upper and lower side of the working of plastics rear shell is respectively provided with some position of bone；It is described two match somebody with somebody zygostyle between set
Some position of bone grooves are put, the position of the position of bone groove and the position of bone are corresponding.
Pass through above-mentioned technical scheme, it is not necessary to increase other material, it is only necessary to gone to work on existing parts
The change of skill and structure, it is possible to reach the effect for reducing length tolerance in rear shell shell, and follow-up loosening can be placed.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other target of the present utility model, feature and excellent
Point will become apparent.
Fig. 1 is the schematic diagram of the rear shell of prior art.
Fig. 2 is the schematic diagram on the aluminium alloy decorative side of prior art.
Fig. 3 is the schematic diagram that the position of bone is set in the rear shell of prior art.
Fig. 4 is aluminium alloy decorative side and the schematic diagram of rear shell assembling of prior art.
Fig. 5 is the straight cutting hole set in working of plastics rear shell of the present utility model.
Fig. 6 be set on aluminium alloy decorative side of the present utility model match somebody with somebody zygostyle.
Fig. 7 is some position of bone set in working of plastics rear shell of the present utility model.
Fig. 8 is the position of bone groove set on aluminium alloy decorative side of the present utility model.
Fig. 9 is the installation diagram with zygostyle with the straight cutting hole in rear shell on aluminium alloy decorative side of the present utility model.
Figure 10 is the installation diagram of the position of bone groove and the position of bone in rear shell on aluminium alloy decorative side of the present utility model.
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, these embodiments are provided so that the utility model will
More fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Accompanying drawing is only this
The schematic illustrations of utility model, it is not necessarily drawn to scale.Identical reference represents same or similar in figure
Part, thus repetition thereof will be omitted.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner
In mode.In the following description, there is provided many details are so as to providing the abundant reason to embodiment of the present utility model
Solution.It will be appreciated, however, by one skilled in the art that the technical solution of the utility model can be put into practice and omit the specific detail
In it is one or more, or other methods, constituent element, device, step etc. can be used.In other cases, do not show in detail
Go out or describe known features, method, apparatus, realization or operation cause each side of the present utility model to avoid that a presumptuous guest usurps the role of the host
Thicken.
Due to the limitation of Shooting Technique, working of plastics（Rear shell）Length dimension presence ± 4mm tolerance can not subtract substantially in shell
Small or elimination.
As shown in accompanying drawing 5,6 and 9,2 straight cutting holes 3 are set in working of plastics rear shell, accordingly on aluminium alloy decorative side
Set 2 and match somebody with somebody zygostyle 4, both are equipped with.
The depth in straight cutting hole is 2-4mm, preferably 3mm, according to the technique of injection, after injection, working of plastics both sides it is straight
Jack apart from corresponding to size, there is also ± 4mm tolerance.
Two are arranged in correspondence with the side on aluminium alloy decorative side 1 and matches somebody with somebody zygostyle.Aluminium alloy uses 6063 material manufacture, firmly
Degree is higher.Aluminium alloy processes two using CNC and matches somebody with somebody zygostyle, and in processing, aluminium alloy decorative side 1 is in zygostyle due to two
Same one side, it is not necessary to change fixture, therefore avoid the error of clamps.Two are become disposably to process with zygostyle by CNC
Shaping, it is ± 0.01mm to be molded latter two relative position dimensional tolerance with zygostyle 4.
Described matches somebody with somebody between zygostyle 4 and described straight cutting hole 3 for interference fit, unilateral interference 0.025mm.After working of plastics
When shell coordinates with aluminium alloy decorative side, because the relative position with zygostyle on aluminium alloy is relatively accurate, intensity opposed plastic part
By force, therefore, during coordinating with zygostyle and straight cutting hole, when the error of inner casing injection is larger, working of plastics rear shell can produce
The relative position in two straight cutting holes can be corrected by deformation, two aluminium alloy decorative sides of working of plastics rear shell both sides.Thus
Working of plastics can be reduced in tolerance caused by injection.
At the same time, as shown in accompanying drawing 7,8 and 10, in order to prevent the loosening after coordinating, on aluminium alloy decorative side with coordinating
The same side of post washes out some position of bone grooves 6, and glue is stamped in position of bone groove 6.Accordingly, it is right with position of bone groove 6 on the side of rear shell
The position answered sets some position of bone, coordinates with position of bone groove 6.When working of plastics back river and aluminium alloy decorative side coordinate, in position of bone groove
Glue can be bonded with the position of bone on working of plastics, avoid the later stage from producing deformation and stress release.
Position of bone groove can be corresponding with the number of the position of bone, for example is all 5.
The quantity of position of bone groove can also be more than the quantity of the position of bone, as the position of bone be 5 when, except being correspondingly arranged for each position of bone
One position of bone groove, position of bone groove can also be set in the correspondence position between each two position of bone, as depicted in figures 7 and 8, when the position of bone has
At 5,9 position of bone grooves are set.
Pass through the above embodiments, it is not necessary to increase other material, it is only necessary to make technique on existing parts
With the change of structure, it is possible to reach the effect for reducing length tolerance in rear shell shell, and follow-up loosening can be placed.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (4)
1. a kind of Bracelet structure for reducing length tolerance in bracelet rear shell shell, the bracelet includes working of plastics rear shell and for pacifying
Fill the upholstery border of watchband, it is characterised in that the left and right end portions of the upper and lower side of the working of plastics rear shell are respectively provided with straight cutting hole, straight cutting
Totally 4, hole, the depth in the straight cutting hole is 2-4mm；The upholstery border is aluminium alloy decorative side, the aluminium alloy decorative side it is same
Side is provided with two and matches somebody with somebody zygostyle, and two relative position dimensional tolerances matched somebody with somebody between zygostyle are ± 0.01mm, described two cooperations
Post and two straight cutting holes of the same side of the working of plastics rear shell are interference fitted；The aluminium alloy decorative side has two.
A kind of 2. Bracelet structure for reducing length tolerance in bracelet rear shell shell according to claim 1, it is characterised in that
The depth in the straight cutting hole is 3mm.
A kind of 3. Bracelet structure for reducing length tolerance in bracelet rear shell shell according to claim 1, it is characterised in that
The unilateral interference 0.025mm of interference fit.
A kind of 4. Bracelet structure for reducing length tolerance in bracelet rear shell shell according to claim 1, it is characterised in that
The upper and lower side of the working of plastics rear shell is respectively provided with some position of bone；It is described two match somebody with somebody zygostyle between some position of bone grooves are set, it is described
The position of position of bone groove and the position of bone are corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027625.2U CN207202287U (en) | 2017-08-17 | 2017-08-17 | A kind of Bracelet structure for reducing length tolerance in bracelet rear shell shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027625.2U CN207202287U (en) | 2017-08-17 | 2017-08-17 | A kind of Bracelet structure for reducing length tolerance in bracelet rear shell shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207202287U true CN207202287U (en) | 2018-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721027625.2U Expired - Fee Related CN207202287U (en) | 2017-08-17 | 2017-08-17 | A kind of Bracelet structure for reducing length tolerance in bracelet rear shell shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207202287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019033795A1 (en) * | 2017-08-17 | 2019-02-21 | 广东乐源数字技术有限公司 | Method for reducing inside-housing length tolerance of back housing of wristband |
| CN110338527A (en) * | 2019-06-28 | 2019-10-18 | 努比亚技术有限公司 | A kind of chain link connection structure and wearable device |
-
2017
- 2017-08-17 CN CN201721027625.2U patent/CN207202287U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019033795A1 (en) * | 2017-08-17 | 2019-02-21 | 广东乐源数字技术有限公司 | Method for reducing inside-housing length tolerance of back housing of wristband |
| CN110338527A (en) * | 2019-06-28 | 2019-10-18 | 努比亚技术有限公司 | A kind of chain link connection structure and wearable device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20210817 |