CN110486366A - A kind of internal expanding type screw rod forced locking device - Google Patents
A kind of internal expanding type screw rod forced locking device Download PDFInfo
- Publication number
- CN110486366A CN110486366A CN201910734957.1A CN201910734957A CN110486366A CN 110486366 A CN110486366 A CN 110486366A CN 201910734957 A CN201910734957 A CN 201910734957A CN 110486366 A CN110486366 A CN 110486366A
- Authority
- CN
- China
- Prior art keywords
- screw
- tie down
- locking device
- tensioning
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- F16B35/02—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws divided longitudinally
-
- 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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
A kind of internal expanding type screw rod forced locking device disclosed by the invention, it is to be provided with interior wire hole at tie down screw screw thread end, outer rim etc. is arranged with three to five tensioning seams, locking nut is set with outside screw thread, for tensioning screw screw thread in the interior wire hole of tie down screw, tie down screw and tensioning screw screw thread rotation direction can reverse silks each other.Inner support screw need to be only twisted when in use, screw diameter on the outside of nut just will increase the stationary fit reached with nut, and guarantee steps up workpiece and remain in operation vibration not loosen, and not fall off, design structure of the present invention is reasonable, easy to operate, performance is stablized, and security performance is high, stability is strong, it is small in size, it is at low cost, it is a kind of internal expanding type screw rod forced locking device that quality safety requirement can be fully achieved.
Description
Technical field
The present invention relates to one kind to make workpiece locking device interconnected, and specifically a kind of internal expanding type screw rod is locked automatically
Tight device, belongs to field of machining.
Background technique
As national basis builds quickly development, while tightened up want also proposed to product quality and production safety
It asks.Especially higher to the precision control requirement in work progress, the degree of automation of construction equipment is also higher and higher, high series
Control automation equipment must be equipped with the machanical fastener of pinpoint accuracy, could more effective Improving The Quality of Products.At present used in us
Screw rod and nut be the common connector of mechanical processing industry, between the screw and nut for being generally used for preventing vibration connector
Appearance is loosened or is fallen, and workpiece loosening exists in the equipment of operating and big security risk.
It is currently used prevent workpiece loosen component be increase spring shim, purpose mainly absorb mitigate vibration to prevent
Only nut loosening；Another kind is that drilling wears pin to prevent nut loosening from falling off on screw rod on the outside of nut.This method
Although simple, have certain interval between hole pin and nut, be easy to loosen when workpiece has vibration, be extremely difficult to screw rod,
Workpiece does not loosen integrally with nut, and security performance is not high.It is in workpiece and nut also one is the screw being relatively large in diameter is directed to
Between screw on slot, by locking plate inner circle card in flight, locking plate excircle be equipped with multiple protrusion cards, work as nut
Protrusion card is clenched to be stuck in nut outer circle when tightening and prevents loose or dislocation.This locking plate is big using difficulty in small space,
It operates time-consuming and laborious.It is small in size currently on the market there are no a kind of easy to operate, convenient for operation a kind of bolt and nut from
Dynamic locking is set.
Summary of the invention
The purpose of the present invention is overcoming defect present in current workpiece locking device interconnected, thus open a kind of
Internal expanding type screw rod forced locking device.The present invention is achieved by the following technical solutions:
Tie down screw screw thread end is provided with interior wire hole, and outer rim etc. is arranged with three to five tensioning seams, is set with locking nut outside screw thread,
For tight screw screw thread in the interior wire hole of tie down screw, tie down screw and tensioning screw screw thread rotation direction can anti-silks each other.
Design structure of the present invention is reasonable, need to only twist inner support screw when in use, and the screw diameter on the outside of nut will increase
Reach stationary fit with nut greatly, guarantee steps up workpiece and remain in operation vibration not loosen, and does not fall off, operation of the present invention
Simplicity, performance are stablized, and security performance is high, and stability is strong, small in size, at low cost.It is that one kind can be fully achieved quality safety and want
The internal expanding type screw rod forced locking device asked.
Detailed description of the invention
Attached drawing 1 is schematic view of the front view of the invention.
Attached drawing 2 is right side structural representation of the invention.
Attached drawing 3 is overlooking structure diagram of the invention.
The reference numerals are as follows:
Tie down screw 1, locking nut 2, tensioning screw 3, tensioning seam 4 step up workpiece 5.
Specific embodiment
The present invention is achieved by the following technical solutions:
1 screw thread end of tie down screw is provided with interior wire hole, and outer rim etc. is arranged with four tensioning seams 4, is set with locking nut 2 outside screw thread,
Tight 3 screw thread of screw is in the interior wire hole of tie down screw 1, tie down screw 1 and 3 screw thread rotation direction of tensioning screw anti-silk each other.
Tie down screw screw thread end is passed through when use and steps up workpiece wire hole, locking nut, then reversed rotation are tightened in suit rotation
Turn to tighten tensioning screw, under the action of tight locking nut and tensioning screw are positive and negative two-way, keeps the tie down screw for exposing nut straight
Diameter increase reaches stationary fit with nut, and guarantee steps up workpiece and remain in operation vibration not loosen, and does not fall off.
Claims (3)
1. a kind of internal expanding type screw rod forced locking device, it is characterised in that be achieved through the following technical solutions: tie down screw
(1) screw thread end is provided with interior wire hole, and outer rim etc. is arranged with three to five tensioning seams (4), is set with locking nut (2), is tensioned outside screw thread
For screw (3) screw thread in the interior wire hole of tie down screw (1), tie down screw (1) and tensioning screw (3) screw thread rotation direction can be each other
Reverse silk.
2. a kind of internal expanding type screw rod forced locking device according to claim 1, it is characterised in that: tie down screw (1) silk
End of thread outer rim etc. is arranged with four tensioning seams (4).
3. a kind of internal expanding type screw rod forced locking device according to claim 1, it is characterised in that: tie down screw (1) with
Tensioning screw (3) screw thread rotation direction reverse silk each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734957.1A CN110486366A (en) | 2019-08-09 | 2019-08-09 | A kind of internal expanding type screw rod forced locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734957.1A CN110486366A (en) | 2019-08-09 | 2019-08-09 | A kind of internal expanding type screw rod forced locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110486366A true CN110486366A (en) | 2019-11-22 |
Family
ID=68549612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910734957.1A Pending CN110486366A (en) | 2019-08-09 | 2019-08-09 | A kind of internal expanding type screw rod forced locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486366A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60127111U (en) * | 1984-01-30 | 1985-08-27 | 佐藤螺旋株式会社 | fastener |
| US20040057810A1 (en) * | 2002-09-21 | 2004-03-25 | Breslin Patrick W. | Split lock screw fastener assembly and method |
| JP2012172780A (en) * | 2011-02-22 | 2012-09-10 | Takashi Fukuda | Locking device for fastener |
| CN211009494U (en) * | 2019-08-09 | 2020-07-14 | 中铁二十一局集团第三工程有限公司 | Automatic locking device of internal expanding screw rod |
-
2019
- 2019-08-09 CN CN201910734957.1A patent/CN110486366A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60127111U (en) * | 1984-01-30 | 1985-08-27 | 佐藤螺旋株式会社 | fastener |
| US20040057810A1 (en) * | 2002-09-21 | 2004-03-25 | Breslin Patrick W. | Split lock screw fastener assembly and method |
| JP2012172780A (en) * | 2011-02-22 | 2012-09-10 | Takashi Fukuda | Locking device for fastener |
| CN211009494U (en) * | 2019-08-09 | 2020-07-14 | 中铁二十一局集团第三工程有限公司 | Automatic locking device of internal expanding screw rod |
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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 |