CN101585387B - Folding box pin and processing method thereof - Google Patents
Folding box pin and processing method thereof Download PDFInfo
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- CN101585387B CN101585387B CN 200810097625 CN200810097625A CN101585387B CN 101585387 B CN101585387 B CN 101585387B CN 200810097625 CN200810097625 CN 200810097625 CN 200810097625 A CN200810097625 A CN 200810097625A CN 101585387 B CN101585387 B CN 101585387B
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- pin
- folding box
- box pin
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- magnesium
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- Casings For Electric Apparatus (AREA)
Abstract
The invention provides a folding box pin which is in an extrusion forming pipe shape. The outer diameter of the folding box pin is smaller than the diameter of a pin hole of a folding box, and a difference value of the outer diameter of the folding box pin and the diameter of the pin hole is smaller than or equal to 0.02 mm. The length of the folding box pin is equal to or larger than a distance between two pin holes. The folding box pin is made of a magnesium-aluminum alloy material; metered by the weight percent, the content of magnesium is smaller than 10.5, and the content of aluminum is between 1 and 8. Correspondingly, the invention also provides a processing method of the folding box pin, which comprises the following steps: firstly, extruding a corresponding magnesium-aluminum alloy pipe according to the size of the pin hole of the folding box so as to ensure that the outer diameter of the pipe is smaller than the diameter of the pin hole of the folding box; secondly, cutting the folding box pin with a corresponding length by a saw according to the distance between the two pin holes of the folding box so as to ensure that the length of the folding box pin is equal to or larger than the distance between the two pin holes; and finally, processing inner threads at both ends of the folding box pin.
Description
Technical field
The present invention relates to a kind of folding box pin and job operation thereof, particularly a kind of for the folding box pin on the bicycle and job operation thereof.
Background technology
At present, folding bicycle since its volume little, occupy little space, easy to carry and welcomed by the people, its application is quite extensive.Usually, folding bicycle all has folded box, comes folding bicycle by folded box.What the existing folding bicycle of a part adopted is steel material, and corresponding folded box and folding box pin also all adopt Steel material to make, and no matter such cooperation is can both meet the requirements on material or intensity.Yet, the major advantage of folding bicycle is portable, and this just requires its weight to want light, and the obvious weight of the bicycle of Steel material can be heavier, slowly having developed thus and adopted other material to replace Steel material, is exactly a kind of material of being favored very much such as magnesium aluminum alloy.Even but in the bicycle that adopts magnesium aluminum alloy to make, folding box pin also still adopts steel material, because will satisfy requirement of strength.Such cooperation can produce a series of problem, such as, the folded box of steel folding box pin and magnesium aluminum alloy because the strength difference meeting of bi-material so that the pin ear of folded box rupture easily; And there are the contact corrosion problem in the folding box pin of steel and magnesium aluminum alloy, and long-term the use easily so that the pin-and-hole of magnesium aluminum alloy produces the electrochemical corrosion effect affects its service life.
Summary of the invention
The object of the present invention is to provide a kind of folding box pin, be mainly used in folding bicycle, adopt magnesium-aluminium alloy material to make, match with vehicle frame and the folded box that magnesium-aluminium alloy material is made.
Another object of the present invention is to provide a kind of job operation of folding box pin, for the production of the folding box pin of above-mentioned magnesium aluminum alloy.
To achieve these goals, the invention provides a kind of folding box pin, support the use with the folded box of portable bicycle, folded box adopts magnesium aluminum alloy to make, and is box-like, and both sides have pin-and-hole up and down, wherein, described folding box pin is the tubulose of extrusion forming, and its external diameter is less than the diameter of the pin-and-hole of described folded box, and is less than or equal to 0.02mm with its difference; The length of described folding box pin is equal to or greater than two distances between the pin-and-hole; Described folding box pin adopts magnesium-aluminium alloy material to make, and wherein, by weight percentage, the content of magnesium is less than 10.5%, and the content of aluminium is between 1%-8%.
The present invention also provides a kind of job operation of folding box pin, and described folding box pin adopts magnesium-aluminium alloy material to make, and wherein, by weight percentage, the content of magnesium is less than 10.5%, and the content of aluminium is between 1%-8%, and the method may further comprise the steps:
-push corresponding magnesium aluminum alloy tubing according to the size of the pin-and-hole of folded box, make its external diameter less than the diameter of the pin-and-hole of described folded box;
-according to the folding box pin apart from the sawing corresponding length between two pin-and-holes of folded box, so that the length of folding box pin is equal to or greater than two distances between the pin-and-hole;
-process negative thread at the two ends of described folding box pin.
The present invention is further preferably: the content of magnesium is 8% in the described folding box pin, and the content of aluminium is between 3%-6%; Further include a kind of in 0.5%-1% zinc, 0.2%-1% manganese and the 0.1%-1% zirconium or several compound wherein in the described folding box pin.
The advantage that the present invention has is:
1, the folding box pin strength of material of magnesium aluminum alloy and folded box material are complementary, and are conducive to prolong the service life of folded box;
2, there is not the contact corrosion problem between the folding box pin material of magnesium aluminum alloy and the folded box material;
3, the folding box pin of magnesium aluminum alloy is more lightweight than steel folding box pin, has alleviated vehicle frame weight;
4, job operation is simple, is conducive to batch manufacturing.
The specific embodiment
Below will describe the present invention in detail by preferred embodiment, the invention provides a kind of folding box pin and job operation thereof that is mainly used in the folding bicycle of magnesium-aluminium alloy material manufacturing.Below be the preferred embodiments of the present invention, but the present invention is not limited to these embodiment.
Folding box pin of the present invention mainly is that the folded box with portable bicycle supports the use, usually, it is box-like that folded box is, both sides have pin-and-hole up and down, and folding box pin passes these two pin-and-holes and folded box links together, and the vehicle frame of portable bicycle can fold or launch around this folding box pin rotates thus.
Wherein, the vehicle frame of portable bicycle adopts magnesium aluminum alloy to make, and the material of its folded box also is magnesium aluminum alloy, for the steel bicycle, can alleviate greatly the weight of car load thus, and is more convenient to carry.In the present invention, folding box pin also adopts magnesium aluminum alloy to make, and uses to cooperate folded box.
Described folding box pin is the tubulose of extrusion forming, and its external diameter is less than the diameter of the pin-and-hole of described folded box, and is less than or equal to 0.02mm with its difference, and the running-fit that forms thus can satisfy tolerance preferably.Because the sizableness of general folding bicycle, the size variation of its folded box is also little, so the internal diameter of described folding box pin can be selected the value of comparatively fixing, such as 4.5mm preferably.Certainly, described folding box pin will guarantee to have at least above wall thickness of 1.5mm, if the pin-and-hole of folded box is less, the internal diameter of folding box pin also needs to do corresponding variation so, to satisfy requirement of strength.The length of described folding box pin equals two distances between the pin-and-hole, perhaps can be a bit larger tham two distances between the pin-and-hole, such as having more 0-3mm.
Negative thread can be offered in two ends at described folding box pin, can screw in anti-skid screw at two ends after it is installed on the folded box.
Above-mentioned folding box pin adopts magnesium aluminum alloy to make, and the wherein composition of each material below is described, for simplicity, when not having special version, described percent value all is by weight percentage.In order to meet the requirement of fatigue test, wherein the content of magnesium is less than 10.5%, and preferably 8%, the content of aluminium is between 1%-8%, preferably between 3%-6%.In order more further to strengthen the performance of folding box pin, some other the material that can mix therein, such as zinc, manganese, zirconium etc., even a small amount of rare earth element that can also mix.Wherein, the content of zinc can be 0.5%-1%, and the content of manganese can be 0.2%-1%, and the content of zirconium can be 0.1%-1%.Above-mentioned these materials can only add wherein a kind of, perhaps several compound wherein.
Above-mentioned folding box pin is owing to be to adopt magnesium aluminum alloy equally, therefore can there be the contact corrosion problem between itself and the folded box, also because the two intensity is roughly suitable, also be conducive to prolong both service life, overcome the existing series of problems of steel folding box pin fully, simultaneously, the inventor has also carried out fatigue test to above-mentioned folding box pin, and its result meets national standard fully.
Accordingly, the invention provides a kind of job operation that is used for specially producing above-mentioned folding box pin, at first, size according to the pin-and-hole of folded box is pushed corresponding magnesium aluminum alloy tubing, make its external diameter less than the diameter of the pin-and-hole of described folded box, and be less than or equal to 0.02mm with its difference, preferably its internal diameter is processed into size simultaneously and is 4.5mm, in this process, the component ratio of the material of the magnesium aluminum alloy of employing as mentioned above; Then according to the folding box pin apart from the sawing corresponding length between two pin-and-holes of folded box, so that the length of folding box pin equals two distances between the pin-and-hole, perhaps can be a bit larger tham two distances between the pin-and-hole; At last process negative thread at the two ends of described folding box pin, after it is installed on the folded box, can screw in anti-skid screw at two ends.
This job operation is simple to operate, and process flow is few, and needed Fabricating machinery all can adopt existing equipment, does not need other customization, is conducive to batch manufacturing.
Be to be understood that, above in conjunction with the embodiments explanation illustrative and nonrestrictive just for the purpose of the present invention, without departing from the spirit and scope of the present invention, can make many changes and modification to the present invention, it all will drop in the scope of the invention defined by the claims.
Claims (8)
1. folding box pin, support the use with the folded box of portable bicycle, folded box adopts magnesium aluminum alloy to make, be box-like, both sides have pin-and-hole up and down, it is characterized in that: described folding box pin is the tubulose of extrusion forming, and its external diameter is less than the diameter of the pin-and-hole of described folded box, and is less than or equal to 0.02mm with its difference; The length of described folding box pin is equal to or greater than two distances between the pin-and-hole;
Described folding box pin adopts magnesium-aluminium alloy material to make, and wherein, by weight percentage, the content of magnesium is less than 10.5%, and the content of aluminium is between 1%-8%.
2. folding box pin according to claim 1, it is characterized in that: the two ends of described folding box pin offer negative thread.
3. folding box pin according to claim 1, it is characterized in that: the content of magnesium is 8% in the described folding box pin, and the content of aluminium is between 3%-6%.
4. arbitrary described folding box pin according to claim 1-3 is characterized in that: further include a kind of in 0.5%-1% zinc, 0.2%-1% manganese and the 0.1%-1% zirconium or several compound wherein in the described folding box pin.
5. folding box pin according to claim 1, it is characterized in that: the internal diameter of described folding box pin is 4.5mm.
6. the job operation of a folding box pin is characterized in that, described folding box pin adopts magnesium-aluminium alloy material to make, and wherein, by weight percentage, the content of magnesium is less than 10.5%, and the content of aluminium is between 1%-8%, and the method may further comprise the steps:
-push corresponding magnesium aluminum alloy tubing according to the size of the pin-and-hole of folded box, make its external diameter less than the diameter of the pin-and-hole of described folded box;
-according to the folding box pin apart from the sawing corresponding length between two pin-and-holes of folded box, so that the length of folding box pin is equal to or greater than two distances between the pin-and-hole;
-process negative thread at the two ends of described folding box pin.
7. the job operation of folding box pin according to claim 6, it is characterized in that: the content of magnesium is 8% in the described folding box pin, and the content of aluminium is between 3%-6%.
8. the job operation of folding box pin according to claim 6 is characterized in that: further include a kind of in 0.5%-1% zinc, 0.2%-1% manganese and the 0.1%-1% zirconium or several compound wherein in the described folding box pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810097625 CN101585387B (en) | 2008-05-22 | 2008-05-22 | Folding box pin and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810097625 CN101585387B (en) | 2008-05-22 | 2008-05-22 | Folding box pin and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101585387A CN101585387A (en) | 2009-11-25 |
| CN101585387B true CN101585387B (en) | 2013-05-01 |
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ID=41369865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810097625 Expired - Fee Related CN101585387B (en) | 2008-05-22 | 2008-05-22 | Folding box pin and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101585387B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175983A (en) * | 1995-02-24 | 1998-03-11 | 皮西尼·何纳吕 | Product for obtaining welded Al-Mg-Mn alloy structures with improved mechanical resistance |
| CN2419288Y (en) * | 2000-03-29 | 2001-02-14 | 肖纹篯 | Thin wall pipe with internal partitions |
| CN2608399Y (en) * | 2003-03-21 | 2004-03-31 | 天津科林自行车有限公司 | Folding box for bicycle |
| NL1029622C1 (en) * | 2005-07-26 | 2007-01-29 | Astro Engineering Co | Bicycle frame incorporates integral connecting piece and has front tube, lower support, saddle tube, chain support, saddle support and connecting piece |
| CN2910760Y (en) * | 2006-07-07 | 2007-06-13 | 天津富士达自行车有限公司 | Folding casing used for folding bicycle |
| CN201033616Y (en) * | 2007-04-30 | 2008-03-12 | 黄彩强 | Folding box for foldable bicycle |
-
2008
- 2008-05-22 CN CN 200810097625 patent/CN101585387B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175983A (en) * | 1995-02-24 | 1998-03-11 | 皮西尼·何纳吕 | Product for obtaining welded Al-Mg-Mn alloy structures with improved mechanical resistance |
| CN2419288Y (en) * | 2000-03-29 | 2001-02-14 | 肖纹篯 | Thin wall pipe with internal partitions |
| CN2608399Y (en) * | 2003-03-21 | 2004-03-31 | 天津科林自行车有限公司 | Folding box for bicycle |
| NL1029622C1 (en) * | 2005-07-26 | 2007-01-29 | Astro Engineering Co | Bicycle frame incorporates integral connecting piece and has front tube, lower support, saddle tube, chain support, saddle support and connecting piece |
| CN2910760Y (en) * | 2006-07-07 | 2007-06-13 | 天津富士达自行车有限公司 | Folding casing used for folding bicycle |
| CN201033616Y (en) * | 2007-04-30 | 2008-03-12 | 黄彩强 | Folding box for foldable bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101585387A (en) | 2009-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tangshan Hengli Vehicle Parts Co., Ltd. Assignor: Yu Keru Contract fulfillment period: 2008.10.25 to 2028.5.22 contract change Contract record no.: 2008990001089 Denomination of invention: Folding box pin and processing method thereof License type: Exclusive license Record date: 2008.11.4 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.25 TO 2028.5.22; CHANGE OF CONTRACT Name of requester: TANGSHAN HENGLI VEHICLE MATERIAL CO., LTD. Effective date: 20081104 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: TANG SHAN HENGLI BICYCLE PARTS CO., LTD. Free format text: FORMER OWNER: YU KERU Effective date: 20130208 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 301506 NINGHE, TIANJIN TO: 301506 TANGSHAN, HEBEI PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20130208 Address after: Dong village in Hebei province Tangshan City 301506 North Lutai Economic Development Zone Town Applicant after: Tangshan Hengli Vehicle Parts Co., Ltd. Address before: Dong village 301506 Tianjin city in Ninghe Province town of Tangshan Henry car material Co. Ltd. Applicant before: Yu Keru |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20140522 |