CN102312899A - Fixing device with bidirectional threads - Google Patents
Fixing device with bidirectional threads Download PDFInfo
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- CN102312899A CN102312899A CN201110246326A CN201110246326A CN102312899A CN 102312899 A CN102312899 A CN 102312899A CN 201110246326 A CN201110246326 A CN 201110246326A CN 201110246326 A CN201110246326 A CN 201110246326A CN 102312899 A CN102312899 A CN 102312899A
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- nut
- screw rod
- thread section
- securing means
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Abstract
The invention discloses a fixing device with bidirectional threads, which comprises a screw stem with threads at one end, wherein a nut is arranged on the screw stem. The fixing device with the bidirectional threads has a simple structure, is convenient to dismantle and has a higher locking function, and the looseness occurrence probability during the use is reduced.
Description
Technical field
The present invention relates to a kind of securing means, especially relate to a kind of securing means with bidirectional helical.Belong to mechanical field.
Background technique
Fastening piece is to be fastenedly connected to use and use one type of mechanical parts very widely.On various machineries, equipment, vehicle, boats and ships, railway, bridge, building, structure, instrument, instrument, instrument and articles for use etc., can see fastening piece miscellaneous.Its feature is that description is various, and the performance purposes is different, and standardization, seriation, unitized kind of degree are also high.Therefore also there is the people to call standard fasteners to one type of fastening piece of existing NBS, or abbreviates standard piece as.Be the one type of mechanical parts that is fastenedly connected usefulness, use very extensive. the characteristics of fastening piece:: description is various, and the performance purposes is different, and standardization, seriation, unitized strong.Fastening piece comprises: bolt, double-screw bolt, screw, nut, packing ring, pin etc.Because specification, size, tolerance, weight, performance, surface condition, the labeling method of each concrete Fastener products; And the specific requirement of projects such as acceptance, sign and packing; Be separate provision in several countries (industry) standard, English system, German system and made in U.S.A are for example arranged.
By head and screw rod (having externally threaded cylindrical body) one type of fastening piece dimerous, need nut to cooperate, be used to be fastenedly connected two parts that have through hole.This Connecting format is called bolt and connects, and as screwing off nut from bolt, can make these two parts separately again, is to belong to removably connect so bolt connects.Bolt is very extensive in practical applications; Generally it is divided into plain bolt and heterotypic bolt; The standard of dividing is everyly to have the bolt of NBS all to should be plain bolt (like hexagon head bolt, socket cap hexagon socket head cap screw, stud bolt, straight groove bolt, cross recess bolt, square toes Cock screw stone bolt etc.); Do not have the bolt of national regulation to claim heterotypic bolt, it generally is used in special occasion, special purposes, also need special tool go fastening with unscrew it.In the petroleum industry field, some particular environment need use heterotypic bolt just can meet the demands, but the machinery fastening screw nut that uses at present is unidirectional screw thread; Screw rod inserts the screw of required fastening mechanical part; Nut along being threaded into until screwing, is reached the fastening each other of mechanical part, because the screw rod nut of unidirectional screw thread is loosening easily; Cause the mechanical part can not be fastening, in the process of using, cause mechanical equipment fault easily or damage.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned existing technology, a kind of securing means with bidirectional helical is provided, this securing means is simple in structure, and convenient disassembly has higher locking function, reduces phenomenon probability of happening loosening in the using process.
The object of the invention is realized through following technical proposals: have the securing means of bidirectional helical, comprise that an end is provided with threaded screw rod, said screw rod is provided with nut.
Said screw thread comprises forward clockwise direction thread section and reverse thread section counterclockwise, and said reverse thread section diameter counterclockwise is less than forward clockwise direction thread section, and reverse thread section counterclockwise is in the top of screw rod.
Said nut comprises forward nut and reverse nut, and is separately positioned on the corresponding thread section.
The end face of said forward nut is provided with groove, and the end face of said reverse nut is provided with the projection corresponding with the size of groove, and said groove contacts with projection.
The other end of said screw rod is provided with fixing device.
Said screw rod and nut all adopt the nitriding steel material to process.
In sum, the invention has the beneficial effects as follows: this securing means is simple in structure, and convenient disassembly has higher locking function, reduces phenomenon probability of happening loosening in the using process.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of screw rod.
Mark and corresponding component title in the accompanying drawing: 1-reverse thread section counterclockwise; 2-reverse nut; 3-forward nut; 4-projection; 5-groove; The counterclockwise thread section of 6-forward; 7-screw rod; 8-fixing device.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done further detailed description, but mode of execution of the present invention is not limited only to this.
Embodiment:
Like Fig. 1, shown in Figure 2, have the securing means of bidirectional helical, comprise that an end is provided with threaded screw rod 7, said screw rod 7 is provided with nut.Nut is tightened on the screw rod 7 through screw thread.
Said screw thread comprises forward clockwise direction thread section 6 and reverse thread section 1 counterclockwise, and said reverse thread section 1 diameter counterclockwise is less than forward clockwise direction thread section 6, and reverse thread section 1 counterclockwise is in the top of screw rod 7.Reverse thread section 1 diameter counterclockwise is to make things convenient for nut to screw in less than forward clockwise direction thread section 6.
Said nut comprises forward nut 3 and reverse nut 2, and is separately positioned on the corresponding thread section.In use; Earlier forward nut 3 is screwed in forward clockwise direction thread section 6, then reverse nut 2 is screwed in reverse thread section 1 counterclockwise, projection 4 embeds in the groove 5 simultaneously; Realized the locking between the nut, prevented that the nut that the vibrations of mechanical part in practical process cause from becoming flexible.
The other end of said screw rod 7 is provided with fixing device 8.Through fixing device 8 screw rod 7 is fixed on the machinery, has increased the steadiness in the using process.
The end face of said forward nut 3 is provided with groove 5, and the end face of said reverse nut 2 is provided with the projection corresponding with the size of groove 54, and said groove 5 contacts with projection 4.Through the locking of groove 5 with projection 4, increased the steadiness of mechanical part, prevent to become flexible.
Said screw rod 7 all adopts the nitriding steel material to process with nut.Adopt the nitriding steel material, can increase the wear resistance of screw rod 7 nuts, increased the intensity of screw rod 7, the life-span of use has prolonged greatly.
Take aforesaid way, just embodiment of the present invention preferably.
Claims (6)
1. have the securing means of bidirectional helical, it is characterized in that: comprise that an end is provided with threaded screw rod (7), said screw rod (7) is provided with nut.
2. the securing means with bidirectional helical as claimed in claim 1; It is characterized in that: said screw thread comprises forward clockwise direction thread section (6) and reverse thread section (1) counterclockwise; Said reverse thread section (1) diameter counterclockwise is less than forward clockwise direction thread section (6), and reverse thread section (1) counterclockwise is in the top of screw rod (7).
3. the securing means with bidirectional helical as claimed in claim 2 is characterized in that: said nut comprises forward nut (3) and reverse nut (2), and is separately positioned on the corresponding thread section.
4. the securing means with bidirectional helical as claimed in claim 3; It is characterized in that: the end face of said forward nut (3) is provided with groove (5); The end face of said reverse nut (2) is provided with the projection (4) corresponding with the size of groove (5), and said groove (5) contacts with projection (4).
5. the securing means with bidirectional helical as claimed in claim 1 is characterized in that: the other end of said screw rod (7) is provided with fixing device (8).
6. like any described securing means with bidirectional helical in the claim 1 to 5, it is characterized in that: said screw rod (7) and nut all adopt the nitriding steel material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110246326A CN102312899A (en) | 2011-08-24 | 2011-08-24 | Fixing device with bidirectional threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110246326A CN102312899A (en) | 2011-08-24 | 2011-08-24 | Fixing device with bidirectional threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102312899A true CN102312899A (en) | 2012-01-11 |
Family
ID=45426353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110246326A Pending CN102312899A (en) | 2011-08-24 | 2011-08-24 | Fixing device with bidirectional threads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102312899A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867550A (en) * | 2012-12-11 | 2014-06-18 | 王昇辉 | Locking device capable of not loosening main shaft and nuts |
| CN108119511A (en) * | 2018-02-19 | 2018-06-05 | 何长青 | A kind of double nut reverse thread anti-loosing fixing device |
| CN110594273A (en) * | 2018-10-23 | 2019-12-20 | 卢玉珊 | Locking take off, be convenient for open and shut screw fastening subassembly and connection structure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885461A (en) * | 1973-10-23 | 1975-05-27 | Caterpillar Tractor Co | Self-locking piston and rod assembly for a fluid motor or the like |
| GB2120345A (en) * | 1982-05-11 | 1983-11-30 | Mochizuki Kurakichi | Anti-loosening bolt |
| EP0130304A1 (en) * | 1983-06-27 | 1985-01-09 | Minoru Komatsu | Double locknut assembly and combination of locknut assembly with a bolt |
| JP2005172190A (en) * | 2003-12-15 | 2005-06-30 | Shin Caterpillar Mitsubishi Ltd | Fluid pressure cylinder device and piston fastening and fixing structure to be used for the same |
| WO2006028327A1 (en) * | 2004-09-09 | 2006-03-16 | Jae Won Ko | Bolt structure, and bolt and nut assembly structure |
| EP1553310B1 (en) * | 2004-01-12 | 2006-11-08 | SKF Aerospace France | A reversible device for locking an end piece on a structure with adjustable position |
| CN101109403A (en) * | 2006-07-17 | 2008-01-23 | 通用电气公司 | Fasteners coated with boron nitride and means for securing fasteners |
| CN201155516Y (en) * | 2007-11-09 | 2008-11-26 | 曹茜 | Forward and backward double thread self locking type screw rod cap nut |
| CN201908932U (en) * | 2011-02-28 | 2011-07-27 | 杨清立 | Self-locking locknut assembly |
| CN202194924U (en) * | 2011-08-24 | 2012-04-18 | 成都科盛石油科技有限公司 | Tightening device with bidirectional threads |
-
2011
- 2011-08-24 CN CN201110246326A patent/CN102312899A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885461A (en) * | 1973-10-23 | 1975-05-27 | Caterpillar Tractor Co | Self-locking piston and rod assembly for a fluid motor or the like |
| GB2120345A (en) * | 1982-05-11 | 1983-11-30 | Mochizuki Kurakichi | Anti-loosening bolt |
| EP0130304A1 (en) * | 1983-06-27 | 1985-01-09 | Minoru Komatsu | Double locknut assembly and combination of locknut assembly with a bolt |
| JP2005172190A (en) * | 2003-12-15 | 2005-06-30 | Shin Caterpillar Mitsubishi Ltd | Fluid pressure cylinder device and piston fastening and fixing structure to be used for the same |
| EP1553310B1 (en) * | 2004-01-12 | 2006-11-08 | SKF Aerospace France | A reversible device for locking an end piece on a structure with adjustable position |
| WO2006028327A1 (en) * | 2004-09-09 | 2006-03-16 | Jae Won Ko | Bolt structure, and bolt and nut assembly structure |
| CN101109403A (en) * | 2006-07-17 | 2008-01-23 | 通用电气公司 | Fasteners coated with boron nitride and means for securing fasteners |
| CN201155516Y (en) * | 2007-11-09 | 2008-11-26 | 曹茜 | Forward and backward double thread self locking type screw rod cap nut |
| CN201908932U (en) * | 2011-02-28 | 2011-07-27 | 杨清立 | Self-locking locknut assembly |
| CN202194924U (en) * | 2011-08-24 | 2012-04-18 | 成都科盛石油科技有限公司 | Tightening device with bidirectional threads |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867550A (en) * | 2012-12-11 | 2014-06-18 | 王昇辉 | Locking device capable of not loosening main shaft and nuts |
| CN103867550B (en) * | 2012-12-11 | 2016-03-30 | 王昇辉 | Main shaft and nut do not get loose lockup device |
| CN108119511A (en) * | 2018-02-19 | 2018-06-05 | 何长青 | A kind of double nut reverse thread anti-loosing fixing device |
| CN110594273A (en) * | 2018-10-23 | 2019-12-20 | 卢玉珊 | Locking take off, be convenient for open and shut screw fastening subassembly and connection structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120111 |