CN201221545Y - Double-cap anti-loose bolt - Google Patents
Double-cap anti-loose bolt Download PDFInfo
- Publication number
- CN201221545Y CN201221545Y CNU200820108336XU CN200820108336U CN201221545Y CN 201221545 Y CN201221545 Y CN 201221545Y CN U200820108336X U CNU200820108336X U CN U200820108336XU CN 200820108336 U CN200820108336 U CN 200820108336U CN 201221545 Y CN201221545 Y CN 201221545Y
- Authority
- CN
- China
- Prior art keywords
- cap
- nut
- thread
- screw rod
- inner nut
- 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
Links
- 238000000034 method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a double-cap check bolt which uses double-cap self locking method to prevent the looseness of the bolt, comprising a screw, an inner nut and an outer nut. The utility model is characterized in that the inner end of the thread end of the screw is become thinner and thinner in a stepwise way. The rotation direction of the thread on the thinner part is opposite from the rotation direction of the thread on the non-thinner part. The external thread diameter of the thinner part is less than the internal thread diameter of the inner nut. The external end face of the inner nut is in a taper gradient structure which is high in the middle and low in the periphery. The inner end of the external screw cap is matched with the external end face of the taper gradient of the inner nut. The utility model can prevent looseness and slip, which is convenient to be used.
Description
Technical field
The utility model relates to bolt fastener, relates in particular to two cap chek bolts that the two cap self-locking modes of a kind of usefulness prevent nut loosening.
Background technique
Bolt is an industrial foundation spare, all will use bolt on nearly all machine.Existing bolt generally is made up of screw rod and nut, and screw rod is isometrical, and the screw thread and the screw flight of nut are complementary, and is loosening easily under the effect of vibrations or other external force with the object of this bolton, even nut is come off, and the person that do not cause the accident therefrom is of common occurrence.Because the locking of existing bolt is that friction realizes by the screw thread between nut and the screw rod, therefore will strengthen friction area for anti-loosening.Be anti-looseningly generally will use spring washer in the existing standard, also will also will expose 2～3 circle screw thread, so not only waste materials but also not attractive in appearance more simultaneously with two the fastening back of nuts screw rods.Owing between nut and the screw rod obvious gaps is arranged, with the passing of time after, will get rusty between the screw thread of irony or copper material, give to unload to make troubles.For anti-loosening, the somebody uses tackiness agent on clamping bolt, can make troubles to dismounting like this.
Summary of the invention
The purpose of this utility model is to overcome shortcomings such as existing bolt is easily loosening, expense material, and a kind of locking, material-saving, strong and reliable pair of cap chek bolt are provided.
The purpose of this utility model is achieved through the following technical solutions.
A kind of pair of cap chek bolt is made up of screw rod, inner nut and exterior nut cap, it is characterized in that the screw flight end is the step sample and attenuates in the inner, and the thread rotary orientation of taper portion is opposite with the thread rotary orientation of taper portion not.
The external thread diameter of screw rod taper portion is less than the internal thread diameter of inner nut.
The low taper gradient structure of high periphery in the middle of the exterior edge face of inner nut is.The taper gradient exterior edge face of the inner of exterior nut cap and inner nut matches.
The end thread rotation direction of the thread rotary orientation of exterior nut cap and screw rod adapts.
The of the present utility model pair of cap chek bolt can prevent to become flexible, anti-slip, economical with materials, firm reliable, easy to use.
Description of drawings
Fig. 1 is screw rod 1 structural representation of the two cap chek bolts of the utility model.
Fig. 2 is the schematic representation of inner nut 2.
Fig. 3 is the schematic representation of exterior nut cap 3.
Fig. 4 is the combination schematic representation of the two cap chek bolts of model utility.
Embodiment
Referring to accompanying drawing, two cap chek bolts are made up of screw rod 1 and inner nut 2 and exterior nut cap 3;
Referring to Fig. 1, the screw tip of screw rod 1 the inner is the step sample and attenuates, and the thread rotary orientation of taper portion is opposite with the thread rotary orientation of taper portion not, to adapt to the thread rotary orientation of inner nut and exterior nut cap, firmly screws.
Referring to Fig. 2, the exterior edge face 201 tapered gradient structures of inner nut 2, purpose is an economical with materials under the situation that does not reduce internal thread and screw flight area of contact, weight reduction.
Referring to Fig. 3, exterior nut cap 3 is the cap shape, and the taper gradient exterior edge face of inner face and inner nut 2 matches.Purpose is inner nut 2 and screw rod 1 terminal tight sealing are prevented corrosion between screw thread, and is for convenience detach.For strengthening this function, can be between inner nut 2 and exterior nut cap 3 the anoint class.
Referring to Fig. 4, this figure is the combination schematic representation of the two cap chek bolts of the utility model.
During use, screw rod 1 is inserted in the hole of fastened object, with inner nut 2 that fastened object is fastening, the outer cap spiral shell 3 that the rotation direction of screwing on again is opposite makes it to combine closely with inner nut.If screw rod is long slightly, when exterior nut cap and inner nut can not be combined closely, can add packing ring at the no threaded end of screw rod.When fastened material desire is loosening, must make the inner nut reversing, because of exterior nut cap is opposite with the thread rotary orientation of inner nut, stoped the rotation of inner nut, realized self-locking, thus solid and reliable, can prevent to become flexible.
It should be noted last that above mode of execution is only unrestricted in order to the explanation the technical solution of the utility model.Although the present invention has been carried out describing in detail with reference to above-mentioned mode of execution, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1, a kind of pair of cap chek bolt is made up of screw rod (1), inner nut (2) and exterior nut cap (3), and the screw tip that it is characterized in that screw rod (1) the inner is the step sample and attenuates, and the thread rotary orientation of taper portion is opposite with the thread rotary orientation of taper portion not.
2, according to claim 1 pair of cap chek bolt is characterized in that the internal thread diameter of the external thread diameter of screw rod (1) taper portion less than inner nut (2).
3, according to claim 1 pair of cap chek bolt is characterized in that the exterior edge face of inner nut (2) is the low taper gradient structure of middle high periphery, and the taper gradient exterior edge face of the inner of exterior nut cap (3) and inner nut (2) matches.
4, according to claim 1 pair of cap chek bolt is characterized in that the terminal external thread rotary of the thread rotary orientation of exterior nut cap (3) and screw rod (1) is to adapting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820108336XU CN201221545Y (en) | 2008-05-29 | 2008-05-29 | Double-cap anti-loose bolt |
| PCT/CN2008/072084 WO2009024093A1 (en) | 2007-08-21 | 2008-08-21 | A lockable and antirust bolt fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820108336XU CN201221545Y (en) | 2008-05-29 | 2008-05-29 | Double-cap anti-loose bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221545Y true CN201221545Y (en) | 2009-04-15 |
Family
ID=40575053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820108336XU Expired - Fee Related CN201221545Y (en) | 2007-08-21 | 2008-05-29 | Double-cap anti-loose bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221545Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863952A (en) * | 2015-05-28 | 2015-08-26 | 国网山东省电力公司经济技术研究院 | Self-locking fastening set |
| CN105536958A (en) * | 2015-12-08 | 2016-05-04 | 北矿机电科技有限责任公司 | Screw shaft assembly for vertical milling machine and vertical milling machine |
| CN108317149A (en) * | 2018-03-28 | 2018-07-24 | 陕西蓝智机器人有限公司 | A kind of anti-loosening bolt |
| CN111322299A (en) * | 2020-02-28 | 2020-06-23 | 武汉市研华智造环保科技有限公司 | Dedicated bolt assembly on explosion-proof fan |
-
2008
- 2008-05-29 CN CNU200820108336XU patent/CN201221545Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863952A (en) * | 2015-05-28 | 2015-08-26 | 国网山东省电力公司经济技术研究院 | Self-locking fastening set |
| CN105536958A (en) * | 2015-12-08 | 2016-05-04 | 北矿机电科技有限责任公司 | Screw shaft assembly for vertical milling machine and vertical milling machine |
| CN108317149A (en) * | 2018-03-28 | 2018-07-24 | 陕西蓝智机器人有限公司 | A kind of anti-loosening bolt |
| CN111322299A (en) * | 2020-02-28 | 2020-06-23 | 武汉市研华智造环保科技有限公司 | Dedicated bolt assembly on explosion-proof fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHANG YI Free format text: FORMER OWNER: BEIJING SANWEI ZHENGJI TECHNOLOGY CO., LTD. Effective date: 20121122 Owner name: ZHANG JILIN Effective date: 20121122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 HAIDIAN, BEIJING TO: 250022 JINAN, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121122 Address after: Huaiyin District Sunshine New Road Sunshine 250022 Ji'nan city in Shandong province 100 area C2-2-502 room Patentee after: Zhang Yi Patentee after: Zhang Jilin Address before: 100083 room 30, garden Executive Hotel, 6411 Garden East Road, Beijing, Haidian District Patentee before: Beijing 3D Zhengji Science & Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: ZHANG YI Effective date: 20141010 Owner name: ECONOMIC TECHNOLOGY RESEARCH INSTITUTE, STATE GRID Free format text: FORMER OWNER: ZHANG JILIN Effective date: 20141010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 250022 JINAN, SHANDONG PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141010 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Research Institute of Economics and Technology, State Grid Shandong Electric Power Company Address before: Huaiyin District Sunshine New Road Sunshine 250022 Ji'nan city in Shandong province 100 area C2-2-502 room Patentee before: Zhang Yi Patentee before: Zhang Jilin |
|
| 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: 20090415 Termination date: 20170529 |