CN110778585A - Anti-theft structure of anti-theft bolt - Google Patents
Anti-theft structure of anti-theft bolt Download PDFInfo
- Publication number
- CN110778585A CN110778585A CN201910899111.3A CN201910899111A CN110778585A CN 110778585 A CN110778585 A CN 110778585A CN 201910899111 A CN201910899111 A CN 201910899111A CN 110778585 A CN110778585 A CN 110778585A
- Authority
- CN
- China
- Prior art keywords
- bolt
- pawl
- hole
- locking
- sub
- 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
- 239000007769 metal material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
-
- 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/10—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device by a separate operation
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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
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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
- 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
-
- 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
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
Abstract
The invention discloses an anti-theft structure of an anti-theft bolt, wherein a stepped through hole is formed in the axis direction of a female bolt, a male bolt is in threaded connection with the stepped through hole, a locking tooth part is arranged at the bottom of the male bolt, a blind hole is formed in the axis direction of a locking nut and comprises a threaded hole part and a locking hole part, and the female bolt is in threaded connection with the threaded hole part; the outer wall of the locking nut is provided with a mounting hole which is communicated with the locking hole part, the outer hole of the mounting hole is in threaded connection with a dismounting head, a spring and a pawl are inserted into the mounting hole, one end of the spring is abutted against the dismounting head, the other end of the spring is abutted against the pawl, the pawl surface of the pawl is abutted against the locking tooth part, and the pawl surface of the pawl is meshed with the tooth surface of the locking tooth part; when the sub bolt is screwed in the female bolt in the forward direction, the locking tooth part on the sub bolt and the pawl rotate relatively, and when the sub bolt is unscrewed in the reverse direction, the locking tooth part and the pawl are meshed mutually.
Description
The technical field is as follows:
the invention relates to an anti-theft structure of an anti-theft bolt.
Background art:
the bolt is a fastener, generally used with a nut, and has the advantages of simple structure, convenient manufacture and convenient fastening, so the bolt is extremely widely applied. When the existing bolt is used, the bolt can be disassembled through a wrench, and in some special occasions, objects which are stolen or damaged by lawless persons can be caused, so that the potential safety hazard of basic equipment is caused or the basic equipment is directly damaged.
The theftproof bolt that has the production for overcoming the phenomenon of stealing on the existing market, the structure of this kind of bolt generally is after bolt and nut locking, through setting up permanent fixed knot structure (for example use AB glue, welding, round pin nail fixed etc.) for bolt and nut fasten in an organic whole, but when the in-service use, the most use occasion needs bolt detachable, so that the maintenance in later stage or move, therefore its use has certain limitation.
The invention content is as follows:
the present invention provides an anti-theft structure of an anti-theft bolt to solve the above problems of the prior art.
The technical scheme adopted by the invention is as follows: an anti-theft structure of an anti-theft bolt comprises a bolt body and a locking nut, wherein the bolt body comprises a male bolt and a female bolt which are both T-shaped structures, a step through hole is formed in the axis direction of the female bolt, the male bolt is in threaded connection with the step through hole, a locking tooth part is arranged at the bottom of the male bolt, and the diameter of the locking tooth part is smaller than that of an external thread part on the male bolt;
the blind hole is of a step hole structure and comprises a threaded hole part and a locking hole part, the female bolt is connected in the threaded hole part in a threaded manner, and the locking tooth part at the bottom end of the sub bolt extends into the locking hole part;
the outer wall of the locking nut is provided with a mounting hole which is communicated with the locking hole part, the outer hole of the mounting hole is in threaded connection with a dismounting head, a spring and a pawl are inserted into the mounting hole, one end of the spring is abutted against the dismounting head, the other end of the spring is abutted against the pawl, the pawl surface of the pawl is abutted against the locking tooth part, and the pawl surface of the pawl is meshed with the tooth surface of the locking tooth part; when the sub bolt is screwed in the female bolt in the forward direction, the locking tooth part on the sub bolt and the pawl rotate relatively, and when the sub bolt is unscrewed in the reverse direction, the locking tooth part and the pawl are meshed with each other;
the bolt head of the sub-bolt is of a circular structure, and the bolt head of the sub-bolt is provided with a straight groove or a cross groove.
Further, the locking nut is of a hexagonal nut structure.
Further, the bolt head of the female bolt is a hexagonal bolt head.
Furthermore, a first boss is arranged on the inner end face of the dismounting head, a second boss is arranged on the outer end face of the pawl, and two ends of the spring are respectively sleeved on the first boss and the second boss.
Furthermore, the pawl is made of a magnetic conductive metal material.
The invention has the following beneficial effects:
the anti-theft bolt is simple in structure, good in anti-theft effect and convenient to manufacture, and the bolt body and the locking nut are of a detachable structure and can be reused, so that the traditional destructive disassembly is avoided, the waste is reduced, and the using effect is good.
Description of the drawings:
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a sectional view showing the installation of the sub-bolt and the pawl in the lock nut in the present invention.
Fig. 3 is a structural view of the child bolt of the present invention.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the anti-theft structure of the anti-theft bolt of the present invention includes a bolt body 1 and a lock nut 2, the bolt body 1 includes a sub bolt 11 and a female bolt 12 both having T-shaped structures, a stepped through hole 10 is provided in the axial direction of the female bolt 12, the sub bolt 11 is screwed into the stepped through hole 10, and the bottom end of the sub bolt 11 extends out of the female bolt 12. The locking teeth 110 are provided at the bottom of the sub-bolt 11, and the diameter of the locking teeth 110 is smaller than that of the male screw portion of the sub-bolt 11.
The blind hole is arranged in the axis direction of the locking nut 2, is of a stepped hole structure and comprises a threaded hole part 21 and a locking hole part 22, the diameter of the threaded hole part 21 is larger than that of the locking hole part 22, the female bolt 12 is in threaded connection with the threaded hole part 21, and the locking tooth part 110 at the bottom end of the sub bolt 11 extends into the locking hole part 22.
The outer wall of the locking nut 2 is provided with a mounting hole 20, the mounting hole 20 is perpendicular to and is communicated with the locking hole part 22, the outer hole of the mounting hole 20 is in threaded connection with a dismounting head 31, a spring 32 and a pawl 33 are inserted into the mounting hole 20, one end of the spring 32 is abutted against the dismounting head 31, and the other end of the spring is abutted against the pawl 33. The pawl surface of the pawl 33 extends into the lock hole portion 22 and engages with the tooth surface of the lock tooth portion 110 on the sub-bolt 11; the pawl 33 is urged against the locking tooth 110 by a spring 32.
When the invention is used, the sub bolt 11 is screwed in the female bolt 12, and when the sub bolt 11 is screwed in the female bolt 12 in the positive direction, the locking tooth part 110 on the sub bolt 11 and the pawl 33 rotate relatively.
When the sub-bolt 11 is reversely unscrewed, the locking tooth 110 is engaged with the pawl 33, and at this time, the sub-bolt 11 cannot be rotated, so that the purpose of locking and theft prevention is achieved. The bolt body 1 cannot be unscrewed from the lock nut 2.
The bolt head of the sub-bolt 11 is of a circular structure, and in order to facilitate the rotation of the sub-bolt 11, a straight groove or a cross groove is formed in the bolt head of the sub-bolt 11.
The locking nut 2 is in a hexagon nut structure, and the bolt head of the female bolt 12 is a hexagon bolt head.
In order to facilitate positioning and installation of the spring, a first boss is arranged on the inner end face of the dismounting head 31, a second boss is arranged on the outer end face of the pawl 33, and two ends of the spring 32 are respectively sleeved on the first boss and the second boss.
The pawl 33 of the present invention is made of a magnetically conductive metal material.
When the bolt is used, the locking nut 2 is arranged in the equipment, the bolt body 1 is arranged on the outer side of the equipment, then the bolt body 1 penetrates through a fixed object, and then the bolt body 1 is fixedly connected with the locking nut 2.
When the bolt body 1 is detached from the lock nut 2, the detaching head 31 is unscrewed, the second spring is poured out, and then the magnet is taken to adsorb the pawl 33, so that the pawl 33 is detached from the bolt 11.
It should be emphasized that, when the bolt assembly of the present invention is used, it is not suitable to expose the lock nut 2 to the outside, because if the detaching head 31 of the lock nut 2 is exposed to the outside, the theft-proof structure of the present invention can be unlocked only by a lawless person detaching the detaching head 31. Therefore, the invention is suitable for the use occasions that the lock nut 2 is arranged inside an object and the bolt body 1 is arranged outside the object, for example, when an insulator or power transmission equipment is fixed on the outer wall of an outdoor transformer, the lock nut 2 is arranged inside the transformer, the bolt body 1 is arranged outside the transformer, and the insulator or the power transmission equipment is fixed. Or when the outdoor electric control cabinet is used, the locking nut 2 is fixed on the inner wall of the electric control cabinet, and the bolt body 1 is arranged outside the electric control cabinet, so that a bridge frame or other devices matched with the electric control cabinet to be used are fixed on the outer wall of the electric control cabinet.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (5)
1. The utility model provides an anti-theft structure of theftproof bolt, includes bolt body (1) and lock nut (2), its characterized in that: the bolt body (1) comprises a sub bolt (11) and a female bolt (12) which are both T-shaped structures, a step through hole (10) is formed in the axis direction of the female bolt (12), the sub bolt (11) is in threaded connection with the step through hole (10), a locking tooth part (110) is arranged at the bottom of the sub bolt (11), and the diameter of the locking tooth part (110) is smaller than that of an outer thread part on the sub bolt (11);
the blind hole is arranged in the axis direction of the locking nut (2), the blind hole is of a stepped hole structure and comprises a threaded hole part (21) and a locking hole part (22), the female bolt (12) is in threaded connection with the threaded hole part (21), and the locking tooth part (110) at the bottom end of the sub-bolt (11) extends into the locking hole part (22);
the outer wall of the locking nut (2) is provided with a mounting hole (20), the mounting hole (20) is communicated with the locking hole part (22), the outer orifice of the mounting hole (20) is in threaded connection with a dismounting head (31), a spring (32) and a pawl (33) are inserted into the mounting hole (20), one end of the spring (32) is abutted against the dismounting head (31), the other end of the spring is abutted against the pawl (33), the pawl surface of the pawl (33) is abutted against the locking tooth part (110), and the pawl surface of the pawl (33) is meshed with the tooth surface of the locking tooth part (110); when the sub bolt (11) is screwed in the female bolt (12) in the positive direction, the locking tooth part (110) on the sub bolt (11) and the pawl (33) rotate relatively, and when the sub bolt (11) is unscrewed in the reverse direction, the locking tooth part (110) and the pawl (33) are meshed;
the bolt head of the sub-bolt (11) is of a circular structure, and the bolt head of the sub-bolt (11) is provided with a straight groove or a cross groove.
2. The antitheft structure of the antitheft bolt as claimed in claim 1, characterized in that: the locking nut (2) is of a hexagonal nut structure.
3. The antitheft structure of the antitheft bolt as claimed in claim 1, characterized in that: the bolt head of the female bolt (12) is a hexagonal bolt head.
4. The antitheft structure of the antitheft bolt as claimed in claim 1, characterized in that: the inner end face of the disassembling head (31) is provided with a first boss, the outer end face of the pawl (33) is provided with a second boss, and two ends of the spring (32) are respectively sleeved on the first boss and the second boss.
5. The antitheft structure of the antitheft bolt as claimed in claim 1, characterized in that: the pawl (33) is made of magnetic conductive metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910899111.3A CN110778585A (en) | 2019-09-23 | 2019-09-23 | Anti-theft structure of anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910899111.3A CN110778585A (en) | 2019-09-23 | 2019-09-23 | Anti-theft structure of anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110778585A true CN110778585A (en) | 2020-02-11 |
Family
ID=69383770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910899111.3A Pending CN110778585A (en) | 2019-09-23 | 2019-09-23 | Anti-theft structure of anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110778585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864318A (en) * | 2021-09-01 | 2021-12-31 | 浙江长瑞精密零部件制造有限公司 | Antitheft wind power hexagonal round nut |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB232097A (en) * | 1924-08-23 | 1925-04-16 | Stephen John Hartley | Improved means for locking nuts on bolts or the like |
| GB440687A (en) * | 1935-01-15 | 1936-01-03 | David John Collins | Improvements in lock-nuts |
| JPH07197925A (en) * | 1993-12-28 | 1995-08-01 | Hisashi Ishikawa | Fixing tool with loosening stopper |
| CN2921413Y (en) * | 2006-07-16 | 2007-07-11 | 刘春祥 | Magnetic driving anti-returning lock bolt |
| CN204140619U (en) * | 2014-10-08 | 2015-02-04 | 浙江明泰标准件有限公司 | A kind of locknut |
| CN104675831A (en) * | 2015-03-06 | 2015-06-03 | 国家电网公司 | Anti-loosening bolt |
| CN107366674A (en) * | 2017-07-19 | 2017-11-21 | 太仓永固精密制件有限公司 | A kind of check bolt fastener of easy disassembly |
| CN108953354A (en) * | 2018-10-11 | 2018-12-07 | 合肥惠科金扬科技有限公司 | Loosing-proof device |
-
2019
- 2019-09-23 CN CN201910899111.3A patent/CN110778585A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB232097A (en) * | 1924-08-23 | 1925-04-16 | Stephen John Hartley | Improved means for locking nuts on bolts or the like |
| GB440687A (en) * | 1935-01-15 | 1936-01-03 | David John Collins | Improvements in lock-nuts |
| JPH07197925A (en) * | 1993-12-28 | 1995-08-01 | Hisashi Ishikawa | Fixing tool with loosening stopper |
| CN2921413Y (en) * | 2006-07-16 | 2007-07-11 | 刘春祥 | Magnetic driving anti-returning lock bolt |
| CN204140619U (en) * | 2014-10-08 | 2015-02-04 | 浙江明泰标准件有限公司 | A kind of locknut |
| CN104675831A (en) * | 2015-03-06 | 2015-06-03 | 国家电网公司 | Anti-loosening bolt |
| CN107366674A (en) * | 2017-07-19 | 2017-11-21 | 太仓永固精密制件有限公司 | A kind of check bolt fastener of easy disassembly |
| CN108953354A (en) * | 2018-10-11 | 2018-12-07 | 合肥惠科金扬科技有限公司 | Loosing-proof device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864318A (en) * | 2021-09-01 | 2021-12-31 | 浙江长瑞精密零部件制造有限公司 | Antitheft wind power hexagonal round nut |
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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: 20200211 |
|
| RJ01 | Rejection of invention patent application after publication |