CN110821938A - Anti-loosening fastening bolt - Google Patents
Anti-loosening fastening bolt Download PDFInfo
- Publication number
- CN110821938A CN110821938A CN201911124449.8A CN201911124449A CN110821938A CN 110821938 A CN110821938 A CN 110821938A CN 201911124449 A CN201911124449 A CN 201911124449A CN 110821938 A CN110821938 A CN 110821938A
- Authority
- CN
- China
- Prior art keywords
- bolt
- screw
- changeover portion
- fastening
- thread section
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
- F16B35/048—Specially-shaped necks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
Abstract
The utility model provides a locking fastening bolt, bolt one end is the screw thread section, and the bolt other end is the bolt head, is equipped with the changeover portion between bolt head and the screw thread section, and the changeover portion circumference is equipped with the screw, lies in changeover portion one end installation locating plate on the screw thread section, connects fixedly through fastening screw and screw between changeover portion and the locating plate. The anti-loose fastening bolt is simple to manufacture, easy to disassemble and free of special tools for installation; the performance of the whole equipment can be greatly improved, the daily maintenance cost of the equipment is reduced, the anti-loosening effect is good, and the reliability is high; the labor intensity is reduced, the working efficiency is improved, and the operation is simple and convenient.
Description
Technical Field
The invention relates to the technical field of universal mechanical accessories.
Background
Under static load, the thread used for connection can meet the self-locking condition, and the friction at the supporting surfaces of the nut or the bolt head and the like also has the anti-loosening function, so the connection can not be automatically loosened generally. However, under impact, vibration or varying loads, or when the temperature varies greatly, the coupling becomes loose, which is liable to cause serious accidents in individual parts of the plant or even in the whole plant, so that anti-loosening measures must be taken into account.
At present, the anti-loosening methods of the general threaded fastener are many, and the principle of the anti-loosening can be generally classified into the following three methods: the first is friction lock. This creates a positive pressure between the thread pairs that is independent of external forces to create a frictional force that resists relative rotation of the thread pairs. This positive pressure can be achieved by axial or simultaneous two-way compression of the thread pairs. Such as an elastic washer, a double nut, a self-locking nut, a nylon insert locking nut and the like. The anti-loosening mode is convenient for disassembly, but under the conditions of impact, vibration and variable load, the bolt can cause the reduction of pretightening force due to loosening, and the lost pretightening force is slowly increased along with the increase of the vibration times, so that the loosening and failure of threaded connection can be finally caused.
The second way is mechanical anti-loosening, which is to use a stopper to directly limit the relative rotation of the screw pair. Such as the use of cotter pins, tandem wires, and stop washers. The mode causes inconvenient assembly and disassembly, increases the labor intensity of work and has low working efficiency.
The third mode is riveting and punching looseness prevention, and after the screw is screwed down, methods such as point punching, welding, bonding and the like are adopted, so that the screw pair loses the characteristics of a kinematic pair and is connected into non-detachable connection. The disadvantage of this method is that the bolt can only be used once and is difficult to remove, and the bolt pair must be destroyed to be removed.
Disclosure of Invention
In order to solve the problems of the traditional anti-loosening method of the threaded fastener, the invention provides an anti-loosening fastening bolt.
The technical scheme adopted by the invention for realizing the purpose is as follows: the utility model provides a locking fastening bolt, bolt one end is the screw thread section, and the bolt other end is the bolt head, is equipped with the changeover portion between bolt head and the screw thread section, and the changeover portion circumference is equipped with the screw, lies in changeover portion one end installation locating plate on the screw thread section, connects fixedly through fastening screw and screw between changeover portion and the locating plate.
The bolt head is in a hexagonal head structure.
The transition section is of a cylindrical structure.
The fastening screw is a square head long cylindrical end fastening screw.
And a 2-3 mm gap is formed between the threaded section and the positioning plate.
The anti-loose fastening bolt is simple to manufacture, easy to disassemble and free of special tools for installation; the performance of the whole equipment can be greatly improved, the daily maintenance cost of the equipment is reduced, the anti-loosening effect is good, and the reliability is high; the labor intensity is reduced, the working efficiency is improved, and the operation is simple and convenient.
Drawings
FIG. 1 is a front view of the locking fastening bolt of the present invention.
Fig. 2 is a bottom view of the locking fastening bolt of the present invention.
FIG. 3 is an assembly view of the anti-loosening fastening bolt of the present invention.
In the figure: 1. the bolt comprises a bolt body, 2, a first workpiece, 3, a second workpiece, 4, a threaded section, 5, a positioning plate, 6, a fastening screw, 7, a transition section, 8 and a bolt head.
Detailed Description
The anti-loosening fastening bolt structure is shown in fig. 1-2, one end of a bolt 1 is a threaded section 4, the other end of the bolt 1 is a bolt head 8, a transition section 7 is arranged between the bolt head 8 and the threaded section 4, a screw hole is formed in the circumference of the transition section 7, a positioning plate 5 is arranged at one end, located at the transition section 7, of the threaded section 4, and the transition section 7 and the positioning plate 5 are fixedly connected through a fastening screw 6 and the screw hole.
The bolt 1 is formed by round steel processing, and the corresponding screw thread section 4 that needs the joint size of one end processing for the connection between two work pieces (first work piece 2 and second work piece 3), one end processing becomes hexagonal bolt head 8, and the assembly requirement of the instrument commonly used of being convenient for processes cylinder changeover portion 7 between hexagonal bolt head 8 and screw thread section 4, processes the screw of 6 ~ 8 equipartitions in this section circumference. The positioning plate 5 is made of a common steel plate and is attached to a workpiece needing to be fixed, so that the contact area is increased, and the pre-tightening force of the bolt is more uniform. The fastening screws 6 are ordinary square-head long cylindrical end fastening screws and are arranged on uniformly distributed screw holes of the novel bolts. The threaded section 4 and the positioning plate 5 are assembled to ensure a gap of 2-3 mm, the positioning plate 5 is attached to the bottom surface of the second workpiece 3, the threaded section 4 is connected with the first workpiece 2 and the second workpiece 3 in advance, the threaded section 4 is uniformly pre-tightened on the positioning plate 5 through the fastening screws 6, all pre-tightening forces and torques are evenly distributed on the fastening screws 6, the anti-loosening fastening effect is achieved, and the assembling structure is shown in fig. 3.
The threaded connection fastener and the anti-loosening method depend on the structure of the threaded connection fastener, workpieces are pre-connected through the threaded section 4 and the positioning plate 5 on the bolt, the bolt 1 is uniformly pre-tightened by the fastening screw 6 arranged at the circumferential end of the bolt, all pre-tightening force and torque are uniformly distributed on each fastening screw, and the bolt is not easy to loosen even under the action of impact, vibration or variable load, so that the anti-loosening purpose is achieved. When the novel bolt is disassembled, the fastening screws 6 with small diameters (6-8 mm) are only required to be loosened one by one, and the novel bolt 1 is disassembled without special tools, so that the novel bolt is convenient to install and disassemble, the labor intensity is reduced, and the working efficiency is improved.
While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. A locking fastening bolt which characterized in that: bolt (1) one end is screw thread section (4), and the bolt (1) other end is bolt head (8), is equipped with changeover portion (7) between bolt head (8) and screw thread section (4), and changeover portion (7) circumference is equipped with the screw, lies in changeover portion (7) one end installation locating plate (5) on screw thread section (4), connects fixedly through fastening screw (6) and screw between changeover portion (7) and locating plate (5).
2. An anti-loose fastening bolt as defined in claim 1, characterized in that: the bolt head (8) is in a hexagonal head structure.
3. An anti-loose fastening bolt as defined in claim 1, characterized in that: the transition section (7) is of a cylindrical structure.
4. An anti-loose fastening bolt as defined in claim 1, characterized in that: the fastening screw (6) is a square head long cylindrical end fastening screw.
5. An anti-loose fastening bolt as defined in claim 1, characterized in that: and a 2-3 mm gap is formed between the thread section (4) and the positioning plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911124449.8A CN110821938A (en) | 2019-11-18 | 2019-11-18 | Anti-loosening fastening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911124449.8A CN110821938A (en) | 2019-11-18 | 2019-11-18 | Anti-loosening fastening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110821938A true CN110821938A (en) | 2020-02-21 |
Family
ID=69556095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911124449.8A Pending CN110821938A (en) | 2019-11-18 | 2019-11-18 | Anti-loosening fastening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110821938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983939A (en) * | 2021-02-01 | 2021-06-18 | 中国电建集团贵州电力设计研究院有限公司 | Locking device of mountain region photovoltaic fixed adjustable support suitable for manual operation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201401418Y (en) * | 2009-02-10 | 2010-02-10 | 南通高盛机械制造有限公司 | Multilevel jacking tightener with detection interface |
| CN202118075U (en) * | 2011-07-06 | 2012-01-18 | 扬州锻压机床集团有限公司 | Nut anti-loosing device |
| CN202955097U (en) * | 2012-11-22 | 2013-05-29 | 宝山钢铁股份有限公司 | Bolt with shockproof function and anti-looseness function |
| KR101366168B1 (en) * | 2011-08-26 | 2014-02-24 | 강남훈 | Fastening system |
| CN205618516U (en) * | 2016-04-11 | 2016-10-05 | 内蒙古久和能源装备有限公司 | Lock bolt component |
| CN205806171U (en) * | 2016-07-12 | 2016-12-14 | 济南中船设备有限公司 | A kind of bolt fastening structure |
-
2019
- 2019-11-18 CN CN201911124449.8A patent/CN110821938A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201401418Y (en) * | 2009-02-10 | 2010-02-10 | 南通高盛机械制造有限公司 | Multilevel jacking tightener with detection interface |
| CN202118075U (en) * | 2011-07-06 | 2012-01-18 | 扬州锻压机床集团有限公司 | Nut anti-loosing device |
| KR101366168B1 (en) * | 2011-08-26 | 2014-02-24 | 강남훈 | Fastening system |
| CN202955097U (en) * | 2012-11-22 | 2013-05-29 | 宝山钢铁股份有限公司 | Bolt with shockproof function and anti-looseness function |
| CN205618516U (en) * | 2016-04-11 | 2016-10-05 | 内蒙古久和能源装备有限公司 | Lock bolt component |
| CN205806171U (en) * | 2016-07-12 | 2016-12-14 | 济南中船设备有限公司 | A kind of bolt fastening structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983939A (en) * | 2021-02-01 | 2021-06-18 | 中国电建集团贵州电力设计研究院有限公司 | Locking device of mountain region photovoltaic fixed adjustable support suitable for manual operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200221 |
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| RJ01 | Rejection of invention patent application after publication |