CN105757104A - Self-locking screw - Google Patents
Self-locking screw Download PDFInfo
- Publication number
- CN105757104A CN105757104A CN201610196944.XA CN201610196944A CN105757104A CN 105757104 A CN105757104 A CN 105757104A CN 201610196944 A CN201610196944 A CN 201610196944A CN 105757104 A CN105757104 A CN 105757104A
- Authority
- CN
- China
- Prior art keywords
- nut
- screw
- self
- screw rod
- hole
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 241001661918 Bartonia Species 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
Classifications
-
- 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
-
- 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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a self-locking screw which comprises a screw stem and a nut. A cap is arranged on the top of the screw stem; a hexagonal hole is formed in the center of the top of the cap; the lateral side of the screw stem is provided with an external thread; a through hole is formed in the center of the nut axially; an internal thread matched with the external thread is arranged between the lower portion of the through hole and the nut; a plurality of lock mechanisms are arranged above the internal thread; a seal ring is arranged between the top of the nut and the screw stem; and a boss is arranged at the bottom of the nut. The self-locking screw is of simple and reasonable structure and convenient to operate; the lock mechanisms thereof can avoid loosening of the screw effectively, self lock is achieved once the screw is screwed on, the screw is not easy to screw out, and accordingly the screw has good antitheft performance, safety of equipment and application sites is then improved effectively.
Description
Technical field
The present invention relates to a kind of bolt, particularly relate to a kind of self-locking screw.
Background technology
The securing members such as bolt are widely used on numerous occasions such as science and technology, production, processing and test and plant equipment and instrument and meter.Common bolt, generally all without auto-lock function, is used in general occasion and substantially can meet instructions for use, but be used in the occasion that some vibrations are bigger, due to the reason of vibration, it is easy to cause loosening, nor possess theftproof performance.
Summary of the invention
The technical problem to be solved is to provide a kind of simple and reasonable, easy to operate, has better anti-loose and theftproof performance self-locking screw.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of self-locking screw, including screw rod and nut, the top of screw rod is provided with nut, the center of top of nut is provided with inner hexagonal hole, and the side of screw rod is provided with external screw thread, and the central axial of nut has through hole, the female thread coordinated with external screw thread it is provided with between the bottom of through hole and nut, female thread be arranged over multiple retaining mechanism, be provided with sealing ring between top and the screw rod of nut, the bottom of nut is provided with projection seat.
Described retaining mechanism includes catch pawl, and the top of catch pawl is flexibly connected with nut by rotating shaft, is provided with spring part between side and the nut of catch pawl.
Connected by the notch of in-line between described inner hexagonal hole and the edge of nut.
The degree of depth of described notch is less than the degree of depth of inner hexagonal hole.
Described nut is one-body molded with projection seat.
Described nut is one-body molded with screw rod.
Compared with prior art, the invention have the advantage that the bolt arrangement advantages of simple of the present invention, easy to operate, retaining mechanism can be prevented effectively from the mode of the situation of getting loose, and once screw in self-locking, not easily screw out after self-locking, there is good theftproof performance, be effectively increased equipment and use on-the-spot safety.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the plan structure schematic diagram of nut in the present invention；
Fig. 3 is the structure for amplifying schematic diagram of a-quadrant in Fig. 1.
Wherein, 1, nut, 11, inner hexagonal hole, 12, notch, 2, screw rod, 21, external screw thread, 3, sealing ring, 4, nut, 41, through hole, 42, female thread, 5, projection seat, 6, rotating shaft, 7, spring part, 8, catch pawl.
Detailed description of the invention:
As depicted in figs. 1 and 2, a kind of self-locking screw, including screw rod 2 and nut 4, the top of screw rod 2 is provided with nut 1, the center of top of nut 1 is provided with inner hexagonal hole 11, the side of screw rod 2 is provided with external screw thread 21, the central axial of nut 4 has through hole 41, the female thread 42 coordinated with external screw thread 21 it is provided with between the bottom of through hole 41 with nut 4, female thread 42 be arranged over multiple retaining mechanism, be provided with sealing ring 3 between top and the screw rod 2 of nut 4, the bottom of nut 4 is provided with projection seat 5, nut 4 is one-body molded with projection seat 5, and nut 1 is one-body molded with screw rod 2.
As it is shown on figure 3, the retaining mechanism of the present invention includes catch pawl 8, the top of catch pawl 8 is flexibly connected with nut 4 by rotating shaft 6, is provided with spring part 7 between side and the nut 4 of catch pawl 8.Screw rod 2 first inserts in through hole 41, then coordinates with female thread 42 again, due to when screw rod 2 inserts along catch pawl 8, when to be screwed out by screw rod 2, the bottom of catch pawl 8 can be stuck in the recess of external screw thread 21, it is prevented that screw rod 2 screws out, thus realizing self-locking and anti-theft feature.
In the present invention, connected by the notch 12 of in-line between inner hexagonal hole 11 and the edge of nut 1, and the degree of depth of notch 12 is less than the degree of depth of inner hexagonal hole 11, to realize multiple screw-fashion.
Claims (6)
1. a self-locking screw, it is characterized in that: include screw rod and nut, the top of described screw rod is provided with nut, the center of top of described nut is provided with inner hexagonal hole, and the side of described screw rod is provided with external screw thread, and the central axial of described nut has through hole, the female thread coordinated with external screw thread it is provided with between the bottom of described through hole and nut, described female thread be arranged over multiple retaining mechanism, be provided with sealing ring between top and the screw rod of described nut, the bottom of described nut is provided with projection seat.
2. self-locking screw according to claim 1, it is characterised in that: described retaining mechanism includes catch pawl, and the top of described catch pawl is flexibly connected with nut by rotating shaft, is provided with spring part between side and the nut of described catch pawl.
3. self-locking screw according to claim 1, it is characterised in that: connected by the notch of in-line between described inner hexagonal hole and the edge of nut.
4. self-locking screw according to claim 3, it is characterised in that: the degree of depth of described notch is less than the degree of depth of inner hexagonal hole.
5. self-locking screw according to claim 1, it is characterised in that: described nut is one-body molded with projection seat.
6. self-locking screw according to claim 1, it is characterised in that: described nut is one-body molded with screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610196944.XA CN105757104A (en) | 2016-03-31 | 2016-03-31 | Self-locking screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610196944.XA CN105757104A (en) | 2016-03-31 | 2016-03-31 | Self-locking screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105757104A true CN105757104A (en) | 2016-07-13 |
Family
ID=56346906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610196944.XA Pending CN105757104A (en) | 2016-03-31 | 2016-03-31 | Self-locking screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105757104A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114090A (en) * | 2018-11-07 | 2019-01-01 | 天津卓帛科技发展有限公司 | A kind of safety set screw for automobile chassis |
| CN111207143A (en) * | 2020-03-23 | 2020-05-29 | 浙江盛世瑞金紧固件股份有限公司 | High-strength anti-loosening bolt for automobile hexagonal flange face |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3905411A (en) * | 1974-05-29 | 1975-09-16 | Dzus Fasterer Co Inc | Fastener receptacle with protective cap |
| CN2097923U (en) * | 1991-07-02 | 1992-03-04 | 何极南 | Anti-dismantling plug screw |
| WO2004088154A1 (en) * | 2003-04-03 | 2004-10-14 | Siemens Aktiengesellschaft | Self-blocking fixing device |
| CN2649854Y (en) * | 2003-10-08 | 2004-10-20 | 王兴波 | Anti-loose, anti-theft nut |
| CN201991906U (en) * | 2010-11-24 | 2011-09-28 | 刘玉柱 | Joint fastening piece |
| CN203023242U (en) * | 2012-11-20 | 2013-06-26 | 深圳市鹏润达市政工程有限公司 | One-way screwing nut for public facilities |
| CN204572695U (en) * | 2015-03-20 | 2015-08-19 | 牛国玲 | Anti-theft screw |
-
2016
- 2016-03-31 CN CN201610196944.XA patent/CN105757104A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3905411A (en) * | 1974-05-29 | 1975-09-16 | Dzus Fasterer Co Inc | Fastener receptacle with protective cap |
| CN2097923U (en) * | 1991-07-02 | 1992-03-04 | 何极南 | Anti-dismantling plug screw |
| WO2004088154A1 (en) * | 2003-04-03 | 2004-10-14 | Siemens Aktiengesellschaft | Self-blocking fixing device |
| CN2649854Y (en) * | 2003-10-08 | 2004-10-20 | 王兴波 | Anti-loose, anti-theft nut |
| CN201991906U (en) * | 2010-11-24 | 2011-09-28 | 刘玉柱 | Joint fastening piece |
| CN203023242U (en) * | 2012-11-20 | 2013-06-26 | 深圳市鹏润达市政工程有限公司 | One-way screwing nut for public facilities |
| CN204572695U (en) * | 2015-03-20 | 2015-08-19 | 牛国玲 | Anti-theft screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114090A (en) * | 2018-11-07 | 2019-01-01 | 天津卓帛科技发展有限公司 | A kind of safety set screw for automobile chassis |
| CN111207143A (en) * | 2020-03-23 | 2020-05-29 | 浙江盛世瑞金紧固件股份有限公司 | High-strength anti-loosening bolt for automobile hexagonal flange face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160713 |