CN111457000B - Antitheft nut - Google Patents
Antitheft nut Download PDFInfo
- Publication number
- CN111457000B CN111457000B CN202010362089.1A CN202010362089A CN111457000B CN 111457000 B CN111457000 B CN 111457000B CN 202010362089 A CN202010362089 A CN 202010362089A CN 111457000 B CN111457000 B CN 111457000B
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- positioning
- outer shell
- locking pin
- driving piece
- 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.)
- Active
Links
- 230000005291 magnetic effect Effects 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention relates to an anti-theft nut, which comprises an inner sleeve body (1) with an inner wall provided with an inner thread and an outer shell body (2), and is characterized in that: the novel anti-theft device comprises an outer shell body (2), wherein the outer shell body (2) is movably arranged outside an inner sleeve barrel body (1), at least two first positioning grooves (11) are formed in the inner sleeve barrel body (1), at least two first positioning pins (21) which can be respectively inserted into the at least two first positioning grooves are arranged in the outer shell body (2), a locking channel (12) communicated with the first positioning grooves is further formed in the inner sleeve barrel body (1), a locking pin (3) is movably arranged in the locking channel (12), a first driving piece (4) capable of driving the locking pin to move in the locking channel towards a first direction is arranged in the inner sleeve barrel body (1), and a second driving piece (5) capable of driving the locking pin (3) to move in the locking channel (12) towards a second direction, wherein the second direction is opposite to the first direction. The invention can realize the anti-theft function, is convenient to disassemble and does not need to damage the structure of the nut.
Description
Technical Field
The invention relates to an anti-theft nut.
Background
At present, nuts used for playing a role in fastening are widely applied and can be seen everywhere, but the common nuts are easy to install and disassemble, so that the fixed installation of various electric equipment and mechanical equipment in special places is easily damaged by lawbreakers if the common nuts are used for fixing, and although some antitheft nuts exist at present, the conventional antitheft nuts prevent lawbreakers and users themselves, the common nuts cannot be easily completed when the users need to disassemble the nuts, and the common nuts are realized in a destructive mode, so that inconvenience is caused.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the anti-theft nut which is convenient to disassemble and does not need to damage the structure of the nut.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an antitheft nut, includes that the inner wall is equipped with the endotheca barrel of internal thread to and the cover is established the external shell body of inner sleeve body, its characterized in that: the inner sleeve body is movably arranged outside the inner sleeve body, at least two first positioning grooves are formed in the inner sleeve body, at least two first positioning pins which can be respectively inserted into the at least two first positioning grooves are formed in the outer sleeve body, a locking channel communicated with the first positioning grooves is further formed in the inner sleeve body, a locking pin is arranged in the locking channel, and the locking pin can move in the locking channel; the inner sleeve body is internally provided with a first driving part capable of driving the locking pin to move in a first direction in the locking channel, when the locking pin is driven by the first driving part to move into the first positioning groove, the locking pin can prevent the first positioning pin from being inserted into the first positioning groove, and at the moment, the inner sleeve body cannot rotate together with the outer shell body; in addition, the locking mechanism also comprises a second driving piece which can drive the locking pin to move in a second direction in the locking channel, the second direction is opposite to the first direction, the driving force of the second driving piece for driving the locking pin is larger than that of the first driving piece for driving the locking pin, when the locking pin moves out of the first positioning groove under the driving of the second driving piece, the first positioning pin can be inserted into the first positioning groove, at the moment, the outer shell body and the inner sleeve body are matched, and the inner sleeve body can rotate together with the outer shell body.
As a better implementation scheme, the locking pin is a metal piece or a magnet, and the first driving piece is a magnet which can attract the locking pin to move towards the first driving piece; the second driving member is also a magnet capable of attracting the locking pin to move towards the second driving member, and the magnetic force of the second driving member attracting the locking pin is larger than that of the first driving member attracting the locking pin.
Preferably, the second driving member is a ferromagnetic body, and is disposed outside the housing.
In order to prevent the locking pin from sliding out of the locking channel, a gear post for preventing the locking pin from moving excessively in the second direction is arranged in the locking channel.
The locking channel is obliquely arranged on the inner sleeve body, an opening communicated with the locking channel is formed in the outer portion of the inner sleeve body, and the gear post is positioned in the opening.
The two first positioning grooves are symmetrically arranged at the top of the inner sleeve body, and the two corresponding first positioning pins are also arranged; the locking channel, the locking pin, the first driving piece and the gear post are arranged beside each first positioning groove in a matched mode.
The second driving piece is U-shaped, or a U-shaped unlocking piece is arranged outside the shell body, and the second driving piece is arranged on the inner walls of the two end parts of the U-shaped unlocking piece and opposite to the opening on the inner sleeve body.
The inner sleeve body is provided with at least two second positioning grooves, at least two second positioning pins which can be respectively inserted into the at least two second positioning grooves are arranged in the outer shell body, and the second positioning grooves and the first positioning grooves are arranged in a staggered manner; the second locating pin and the first locating pin have the same length, or the second locating pin has a length shorter than the first locating pin.
The inner sleeve body is a hollow cylinder, and the outer wall of the outer shell body is provided with an outer hexagonal or outer octagonal bearing surface.
A sealing ring is arranged between the inner wall of the lower end of the outer shell and the outer wall of the lower end of the inner sleeve body.
Compared with the prior art, the invention has the advantages that: when the nut is mounted, the locking pin moves into the first positioning groove under the drive of the first driving piece, the locking pin can prevent the first positioning pin on the outer shell from being inserted into the first positioning groove on the inner sleeve body, the inner sleeve body cannot rotate together with the outer shell body, and the nut is locked, so that the characteristic of irremovable is achieved, and the anti-theft effect is obvious; when the nut is required to be disassembled, only the second driving piece is needed, the locking pin is driven to move in the locking channel towards the second direction through the second driving piece, when the locking pin is driven by the second driving piece to move out of the first positioning groove, the first positioning pin on the outer shell can be inserted into the first positioning groove on the inner sleeve body, at the moment, the outer shell body and the inner sleeve body are matched, the inner sleeve body can rotate along with the outer shell body, the nut can be unscrewed and screwed up, the nut is convenient to adjust and disassemble, and particularly, the nut is convenient to disassemble without damaging the structure of the nut.
Drawings
Fig. 1 is a schematic structural view of an anti-theft nut according to an embodiment of the present invention.
Fig. 2 is an exploded view of the anti-theft nut according to the embodiment of the present invention.
Fig. 3 is a structural view of an outer case in an embodiment of the present invention.
Fig. 4 is a partial cross-sectional view (adjusted state) of the antitheft nut in the embodiment of the invention.
Fig. 5 is a partial cross-sectional view (locked state) of the antitheft nut in the embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
The anti-theft nut as shown in fig. 1 to 5 comprises an inner sleeve body 1 with hollow inside, internal threads arranged on the inner wall and approximately cylindrical in shape, and an outer shell 2 sleeved outside the inner sleeve body, wherein the inner part of the outer shell 2 is hollow, the outer wall of the outer shell 2 is provided with an outer hexagonal or outer octagonal bearing surface, the outer shell 2 is movably arranged outside the inner sleeve body 1, and a sealing ring 7 is arranged between the inner wall of the lower end of the outer shell 2 and the outer wall of the lower end of the inner sleeve body 1; the top of the inner sleeve barrel 1 is provided with two symmetrically arranged first positioning grooves 11 and two symmetrically arranged second positioning grooves 13, the two second positioning grooves 13 are staggered with the two first positioning grooves 11, and the connecting line of the two second positioning grooves 13 is perpendicular to the connecting line of the two first positioning grooves 11; the top of the inner wall of the outer shell 2 is provided with two first positioning pins 21 which can be respectively inserted into the two first positioning grooves and two second positioning pins 22 which can be respectively inserted into the two second positioning grooves 13. The second positioning pin 22 and the first positioning pin 21 have the same length, and the diameter of the second positioning pin 22 is larger than that of the first positioning pin 21.
In the embodiment, a locking channel 12 communicated with the first positioning groove 11 is arranged in the inner sleeve body 1 beside each first positioning groove 11 in a matching way, a locking pin 3 is arranged in the locking channel 12, and the locking pin 3 can move in the locking channel 12; meanwhile, a first driving piece 4 capable of driving the locking pin 3 to move in a first direction in the locking channel 12 is matched in the inner sleeve barrel 1 beside each first positioning groove 11, when the locking pin 3 is driven by the first driving piece 4 to move into the first positioning groove 11, the locking pin 3 can prevent the first positioning pin 21 from being inserted into the first positioning groove 11, and because the second positioning pin 22 and the first positioning pin 21 are the same in length, the second positioning pin 22 cannot be inserted into the second positioning groove 13, and at the moment, the inner sleeve barrel 1 and the outer shell 2 are separated, and the inner sleeve barrel 1 cannot rotate together with the outer shell 2; in addition, the locking device further comprises a second driving piece 5 which can drive the locking pin 3 to move in a second direction in the locking channel 12, wherein the second direction is opposite to the first direction, when the locking pin 3 is moved out of the first positioning groove 11 under the driving of the second driving piece, the first positioning pin 21 can be inserted into the first positioning groove 11, the second positioning pin 22 can be inserted into the second positioning groove 13, and at the moment, the outer shell 2 and the inner shell 1 are completely matched, and the inner shell 1 can rotate together with the outer shell 2.
The locking pin 3 in the embodiment can be a metal piece or a magnet, the first driving piece 4 is a magnet which can attract the locking pin 3 to move towards the self direction, and the first driving piece 4 is embedded in the inner sleeve body 1; the second driving member 5 is a magnet capable of attracting the locking pin 3 to move towards the self direction, the magnetic force of the second driving member 5 attracting the locking pin 3 is larger than the magnetic force of the first driving member 4 attracting the locking pin 3, the second driving member 5 is preferably a strong magnet, and the second driving member 5 is arranged outside the outer shell 2; the second driving piece 5 can be a strong magnet with a U shape, or a U-shaped unlocking piece 8 is arranged outside the outer shell 2, and the second driving piece 5 is directly arranged on the inner walls of the two end parts of the U-shaped unlocking piece 8 and is opposite to the opening 14 on the inner sleeve body 1. The locking channel 12 is obliquely arranged on the inner sleeve body 1, an opening 14 communicated with the locking channel 12 is formed on the outer part of the inner sleeve body 1, and a gear post 6 for preventing the locking pin 3 from sliding out of the locking channel 12 from the opening 14 is arranged in the opening 14.
The use method and the working principle of the anti-theft nut in the embodiment are as follows: when the second driving member 5 is placed outside the outer shell 2, because the magnetic force of the second driving member 5 attracting the locking pin 3 is greater than the magnetic force of the first driving member 4 attracting the locking pin 3, when the locking pin 3 moves out of the first positioning groove 11 under the driving of the second driving member 5, the outer shell 2 is pressed downwards at this time, the first positioning pin 21 on the outer shell 2 is inserted into the first positioning groove 11 on the inner sleeve 1, and the second positioning pin 22 on the outer shell 2 is also inserted into the second positioning groove 13 on the inner sleeve 1, at this time, the outer shell 2 and the inner sleeve 1 are completely matched, and the inner sleeve 1 can rotate together with the outer shell 2, so as to realize the adjustment of screwing or unscrewing of the nut. After the nut is installed, the outer shell 2 is lifted upwards only by removing the second driving piece 5, at this time, the locking pin 3 loses the magnetic attraction force of the second driving piece, only the magnetic attraction force of the first driving piece, the locking pin 3 can automatically move into the first positioning groove 11 under the driving of the first driving piece 4, at this time, the locking pin 3 can prevent the first positioning pin 21 on the outer shell from being inserted into the first positioning groove 11 on the inner sleeve body 1, and since the second positioning pin 22 and the first positioning pin 21 have the same length, the second positioning pin 22 cannot be inserted into the second positioning groove 13, at this time, the inner sleeve body 1 and the outer shell 2 are separated, the outer shell 2 is not pressed down, the inner sleeve body 1 cannot rotate together with the outer shell 2, at this time, the nut is in a locking state, and the anti-theft function is achieved. When the nut is required to be disassembled next time, only the second driving piece is needed to be taken out, the second driving piece 5 is placed outside the outer shell 2, the second driving piece 5 corresponds to the opening of the locking channel 12, at the moment, because the magnetic force of the second driving piece 5 for attracting the locking pin 3 is larger than the magnetic force of the first driving piece 4 for attracting the locking pin 3, the locking pin 3 can be moved out of the first positioning groove 11 under the driving of the second driving piece 5, at the moment, only the outer shell 2 is needed to be pressed downwards, the first positioning pin 21 on the outer shell 2 is inserted into the first positioning groove 11 on the inner sleeve 1, the second positioning pin 22 on the outer shell 2 is also inserted into the second positioning groove 13 on the inner sleeve 1, at the moment, the outer shell 2 and the inner sleeve 1 are completely matched, and the inner sleeve 1 can rotate together with the outer shell 2, so that the adjustment of screwing or unscrewing of the nut is realized.
Claims (6)
1. The utility model provides an antitheft nut, includes interior sleeve barrel (1) that the inner wall was equipped with the internal thread to and sleeve establishes outer shell (2) outside the interior sleeve barrel, its characterized in that: the novel anti-theft lock comprises an outer shell body (2), an inner sleeve barrel (1) and a locking channel (12), wherein the outer shell body (2) is movably arranged outside the inner sleeve barrel (1), at least two first positioning grooves (11) are formed in the inner sleeve barrel (1), at least two first positioning pins (21) which can be respectively inserted into the at least two first positioning grooves are arranged in the outer shell body (2), the inner sleeve barrel (1) is also internally provided with the locking channel (12) communicated with the first positioning grooves, the locking channel (12) is internally provided with the locking pin (3), and the locking pin (3) can move in the locking channel (12); a first driving piece (4) capable of driving the locking pin to move in a first direction in the locking channel is arranged in the inner sleeve barrel (1), and when the locking pin (3) is driven by the first driving piece (4) to move into the first positioning groove (11), the locking pin (3) can prevent the first positioning pin (21) from being inserted into the first positioning groove (11), and at the moment, the inner sleeve barrel (1) cannot rotate together with the outer shell (2); in addition, the novel locking device further comprises a second driving piece (5) which can drive the locking pin (3) to move in a second direction in the locking channel (12), the second direction is opposite to the first direction, the driving force of the second driving piece (5) for driving the locking pin (3) is larger than that of the first driving piece (4) for driving the locking pin (3), when the locking pin (3) is moved out of the first positioning groove (11) under the driving of the second driving piece, the first positioning pin (21) can be inserted into the first positioning groove (11), the outer shell (2) is matched with the inner sleeve barrel (1), and the inner sleeve barrel (1) can rotate along with the outer shell (2); the locking pin (3) is a metal piece or a magnet, and the first driving piece (4) is a magnet capable of attracting the locking pin (3) to move towards the first driving piece; the second driving piece (5) is a magnet which can attract the locking pin (3) to move towards the second driving piece, and the magnetic force of the second driving piece (5) attracting the locking pin (3) is larger than the magnetic force of the first driving piece (4) attracting the locking pin (3); the two first positioning grooves (11) are symmetrically arranged at the top of the inner sleeve body (1), and the two corresponding first positioning pins (21) are also arranged; the locking channel (12), the locking pin (3), the first driving piece (4) and the gear column (6) are arranged beside each first positioning groove (11) in a matched mode; the second driving piece (5) is U-shaped, or a U-shaped unlocking piece is arranged outside the outer shell (2), and the second driving piece (5) is arranged on the inner walls of the two end parts of the U-shaped unlocking piece and is opposite to the opening (14) on the inner sleeve body (1); at least two second positioning grooves (13) are formed in the inner sleeve body (1), at least two second positioning pins (22) which can be respectively inserted into the at least two second positioning grooves (13) are arranged in the outer shell body (2), and the second positioning grooves (13) and the first positioning grooves (11) are arranged in a staggered mode; the second positioning pin (22) and the first positioning pin (21) have the same length, or the second positioning pin (22) has a shorter length than the first positioning pin (21).
2. The antitheft nut of claim 1, wherein: the second driving piece (5) is a strong magnet and is arranged outside the outer shell (2).
3. The antitheft nut of claim 2, wherein: a gear column (6) for preventing the locking pin (3) from moving excessively in the second direction is arranged in the locking channel (12).
4. A theft-proof nut according to claim 3, characterized in that: the locking channel (12) is obliquely arranged on the inner sleeve body (1), an opening (14) communicated with the locking channel (12) is formed in the outer portion of the inner sleeve body (1), and the gear column (6) is located in the opening (14).
5. The antitheft nut of claim 1, wherein: the inner sleeve body (1) is a hollow cylinder, and the outer wall of the outer shell body (2) is provided with an outer hexagonal or outer octagonal bearing surface.
6. The antitheft nut of claim 1, wherein: a sealing ring (7) is arranged between the inner wall of the lower end of the outer shell (2) and the outer wall of the lower end of the inner sleeve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362089.1A CN111457000B (en) | 2020-04-30 | 2020-04-30 | Antitheft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362089.1A CN111457000B (en) | 2020-04-30 | 2020-04-30 | Antitheft nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111457000A CN111457000A (en) | 2020-07-28 |
| CN111457000B true CN111457000B (en) | 2024-05-24 |
Family
ID=71682970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010362089.1A Active CN111457000B (en) | 2020-04-30 | 2020-04-30 | Antitheft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111457000B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009017354U1 (en) * | 2009-12-21 | 2010-04-01 | Fairchild Fasteners Europe - Camloc Gmbh | locking |
| EP2698552A1 (en) * | 2012-08-14 | 2014-02-19 | HI Power Lock Co., Ltd. | Anti-theft fastener with locking feature |
| WO2018023850A1 (en) * | 2016-08-02 | 2018-02-08 | 上海圣享科技股份有限公司 | Anti-theft screw |
| CN109083921A (en) * | 2018-11-07 | 2018-12-25 | 嘉兴海缙五金科技有限公司 | A kind of steel tower anti-theft nut |
| DE202019105522U1 (en) * | 2019-10-07 | 2019-12-11 | Maximilian Fett | Tamper protection to permanently secure nuts |
| CN212272792U (en) * | 2020-04-30 | 2021-01-01 | 宁波金海仪表有限公司 | Anti-theft nut |
-
2020
- 2020-04-30 CN CN202010362089.1A patent/CN111457000B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009017354U1 (en) * | 2009-12-21 | 2010-04-01 | Fairchild Fasteners Europe - Camloc Gmbh | locking |
| EP2698552A1 (en) * | 2012-08-14 | 2014-02-19 | HI Power Lock Co., Ltd. | Anti-theft fastener with locking feature |
| WO2018023850A1 (en) * | 2016-08-02 | 2018-02-08 | 上海圣享科技股份有限公司 | Anti-theft screw |
| CN109083921A (en) * | 2018-11-07 | 2018-12-25 | 嘉兴海缙五金科技有限公司 | A kind of steel tower anti-theft nut |
| DE202019105522U1 (en) * | 2019-10-07 | 2019-12-11 | Maximilian Fett | Tamper protection to permanently secure nuts |
| CN212272792U (en) * | 2020-04-30 | 2021-01-01 | 宁波金海仪表有限公司 | Anti-theft nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111457000A (en) | 2020-07-28 |
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