CN101859505A - Lock core of anti-theft tag - Google Patents
Lock core of anti-theft tag Download PDFInfo
- Publication number
- CN101859505A CN101859505A CN 201010182295 CN201010182295A CN101859505A CN 101859505 A CN101859505 A CN 101859505A CN 201010182295 CN201010182295 CN 201010182295 CN 201010182295 A CN201010182295 A CN 201010182295A CN 101859505 A CN101859505 A CN 101859505A
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- China
- Prior art keywords
- steel bushing
- steel sleeve
- lock core
- theft tag
- steel
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- 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.)
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Abstract
The invention relates to a lock core of an anti-theft tag used in a shopping mall. The technical problem to be solved is to provide a lock core which has the characteristics of simple structure and excellent anti-theft performance, is easy for large-scale production and has lower manufacturing cost. The invention adopts the technical scheme that the lock core of the anti-theft tag is installed in the shell of the anti-theft tag and comprises a conical large steel sleeve, at least three steel balls, a tubular small steel sleeve and a spiral spring which are sequentially arranged from top to bottom, wherein the bottom end of the large steel sleeve is open, the at least three steel balls are uniformly distributed in the inner cavity of the large steel sleeve, the top end of the small steel sleeve is manufactured into a plane and extends into the inner cavity of the large steel sleeve to support the steel balls, the spiral spring is used for applying upward pressure to the small steel sleeve, and through holes which are linearly communicated and are beneficial to nail rod penetration are manufactured at the end surface centers of the large steel sleeve and the small steel sleeve and the top end of the shell; the invention is characterized in that a plurality of grooves parallel to buses are uniformly distributed on the inner conical surface of the large steel sleeve, the cross section shape of the groove bottom is a circular arc which is suitable for the steel ball, and the number of the grooves is the same as the number of the steel balls.
Description
Technical field
The present invention relates to a kind of Primary Component of anti-theft device, especially the lock core of the anti-theft tag of market use.
Background technology
Widely used anti-theft tag as shown in Figure 5 in the existing market: this label comprises head of a nail body of being made up of nail bar 15, the head of a nail 16 and the cramping body that cooperates with this head of a nail body; Described cramping body is to fix a lock core in housing 10, the structure of lock core is: the centre of steel ball support 13 is shaped on the axis hole of allowing that nail bar 15 inserts, the steel ball cantilever tip is conical and is locating three steel balls 12, tail end is equipped with spring 14 (other end of spring is positioned in the spring base of housing 10), among the figure also as can be known: uniform three through hole 13-1 that radially extend on the circular conical surface of steel ball cantilever tip, each Kong Zhongjun is equipped with a steel ball 12; And the top of steel ball support is also together stretched in the internal conical surface of big steel bushing 11 with steel ball.Its principle of work is: but nail bar 15 inserts (insertion of B direction) from the hole 12-1 on body top, when the central space by three steel balls enters the axis hole of steel ball support, three steel balls are pushed by the nail bar simultaneously, move along the direction of centrifugal direction toward big steel bushing internal conical surface separately; After the nail bar inserts, three steel balls of steel ball cantilever tip separately respectively by cramping between the internal conical surface of nail bar and big steel bushing, the afterbody of steel ball support has spring 14 application of forces again simultaneously, the nail bar is promptly by three steel ball clampings lockings (can only advance and can not go out).If there is the people outwards to pull out the blind rivet bar, because the effect of big steel bushing internal conical surface, steel ball is to the corresponding increase of holding force of nail bar, so the nail bar can't break away from clamper; Thereby has a tangible anti-theft feature.
The shortcoming of this kind lock core is that the structure of steel ball support is comparatively complicated, has certain manufacture difficulty, thereby production efficiency is low and production cost is higher, can't adapt to the needs of large-scale production.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned background technology, a kind of improvement of lock core of anti-theft tag is provided, this lock core should have simple in structure, the characteristics that theftproof performance is superior, and be easy to large-scale production, manufacturing cost is lower.
The objective of the invention is to be achieved through the following technical solutions:
A kind of lock core of anti-theft tag, be installed in the housing of anti-theft tag, comprise that from top to bottom the big steel bushing of the taper of the bottom end opening that is provided with in regular turn, at least three steel balls, the top that are distributed on big steel bushing inner chamber make the plane and stretch into the little steel bushing of tubulose of the described steel ball of big steel bushing inner chamber holding and the volute spring that a pair of little steel bushing applies upward pressure, the end face central authorities of described big steel bushing, little steel bushing and housing top are shaped on straight line and communicate and be beneficial to the through hole that the nail bar passes through; It is characterized in that uniform some grooves parallel with bus on the internal conical surface of big steel bushing, the shape of cross section of this groove bottom land is and the matched circular arc of described steel ball that the quantity of groove is identical with the quantity of steel ball.
The bottom end opening of described little steel bushing, a described helical spring end from bottom to top stretch into little steel bushing inner chamber and little steel bushing is applied upward pressure.
The top end face diameter of described little steel bushing is less than the diameter of described big steel bushing inner chamber top end face.
Principle of work of the present invention is: this lock core is installed in the housing inner chamber of anti-theft tag, and the through hole on the big steel bushing faces the jack on housing top, and the reacting force that volute spring applies bears in housing base end wall portion; During work, nail bar 15 inserts (insertion of B direction) from the top, pass through the through hole of housing 10 and big steel bushing 1 successively, and after stretching into the central authorities of volute spring 14 behind the gap through three steel ball 12 central authorities, three steel balls simultaneously by cramping between the groove of nail bar surface and internal conical surface, simultaneously have volute spring 14 in the bottom of little steel bushing three steel balls to be applied again and upward pressure, the nail bar is promptly by three steel ball clampings lockings (can only enter downwards and can not up extract).If there is people's outside (promptly up) to pull out the blind rivet bar, because the ramp effect of internal conical surface 1-1, the corresponding increase of holding force of 12 pairs of nail bars of three steel balls is so the nail bar can't break away from clamper; And designed groove structure has significantly increased the resistance when steel ball rotates, and makes illegal person be difficult to reach the purpose of opening anti-theft tag by rotating the nail bar.
The invention has the beneficial effects as follows: the structure of this lock core makes that the anti-theft effect of anti-theft tag is obviously strengthened; And owing to form the structure comparatively simple (especially having given up baroque steel ball support) of each parts of technical scheme, consume material and obviously reduce, make and become more easy; Particularly big steel bushing can directly carry out punch process, makes production efficiency significantly improve (improving about 20%), and production cost is significantly decline (the lock core cost reduces about 25%) then; Market outlook are more wide.
Description of drawings
Fig. 1 is a main TV structure synoptic diagram of being furnished with anti-theft tag of the present invention.
Fig. 2 is a blast structural representation of being furnished with anti-theft tag of the present invention.
Fig. 3 is that the master of the big steel bushing among the present invention looks the structure for amplifying synoptic diagram.
Fig. 4 is that the structure for amplifying synoptic diagram is looked on the left side of the big steel bushing among the present invention.
Fig. 5 is the main TV structure synoptic diagram of existing anti-theft tag.
Fig. 6 is the main TV structure synoptic diagram of the steel ball support in the existing anti-theft tag.
Embodiment
As Fig. 1-shown in Figure 4, anti-theft tag comprises head of a nail body of being made up of nail bar 15, the head of a nail 16 and the clamper that cooperates with this head of a nail body, and clamper comprises housing again and is installed in lock core in the housing; Among Fig. 2 as can be known: housing 10 is by upper shell 10-1 and lower house 10-2 is chimeric forms when chimeric (by bonded adhesives upper shell 10-1 and lower house 10-2 are fixed as one), and when chimeric the lock core cladding is positioned in the inner chamber of housing.
In the described lock core, the big steel bushing 1 of the taper of bottom end opening, at least three steel balls 12 (preferred three steel balls of the present invention) that are distributed on big steel bushing inner chamber, bottom end opening and top (top is the plane) from top to bottom are being set are in regular turn stretching into big steel bushing inner chamber the little steel bushing 2 and an end of the tubulose of described three steel ball roof pressures from bottom to top stretched into little steel bushing inner chamber applies upward pressure to little steel bushing volute spring 14; The end face central authorities and the housing top of described big steel bushing, little steel bushing are shaped on the through hole that straight line communicates, and are beneficial to follow closely bar and pass through these through holes from the outside in regular turn and enter and carry out clamping this steel ball clamper and cooperate.
Among Fig. 3, Fig. 4 also as can be known: the internal conical surface 1-1 of big steel bushing goes up uniform some the groove 1-11s parallel with bus (quantity of groove is identical with the quantity of steel ball), and the shape of cross section of this groove bottom land is and the matched circular arc of described steel ball.During work, steel ball embeds can guarantee in this groove that its working position is correct, make steel ball can be effectively to the nail bar that the inserts clamping of nibbling; And steel ball is embedded among the groove 1-11 and can't rolls at the circumferencial direction of internal conical surface, and the difficulty that the head of a nail when being nibbled clamping and nail bar are rotated significantly increases, and can effectively stop the stealer attempt by rotating the illegal attempt that the nail bar is opened anti-theft tag.
In addition, the diameter of the top end face of described little steel bushing 2 should be less than the diameter of described big steel bushing inner chamber top end face; Can guarantee that little steel bushing has enough axially-movable spaces in the internal conical surface of big steel bushing, cooperate needs with the nail bar that adapts to different-diameter.
Claims (3)
1. the lock core of an anti-theft tag, be installed in the housing (10) of anti-theft tag, comprise that from top to bottom the big steel bushing (1) of the taper of the bottom end opening that is provided with in regular turn, at least three steel balls (12), the top that are distributed on big steel bushing inner chamber make the plane and stretch into the little steel bushing (2) of tubulose of the described steel ball of big steel bushing inner chamber holding and the volute spring (14) that a pair of little steel bushing applies upward pressure, the end face central authorities of described big steel bushing, little steel bushing and housing top are shaped on straight line and communicate and be beneficial to the through hole that the nail bar passes through; It is characterized in that uniform some the grooves parallel with bus (1-11) on the internal conical surface of big steel bushing, the shape of cross section of this groove bottom land is and the matched circular arc of described steel ball that the quantity of groove is identical with the quantity of steel ball.
2. the lock core of a kind of anti-theft tag according to claim 1 is characterized in that the bottom end opening of described little steel bushing (2), an end of described volute spring (14) from bottom to top stretch into little steel bushing inner chamber and little steel bushing is applied upward pressure.
3. the lock core of a kind of anti-theft tag according to claim 1 and 2 is characterized in that the diameter of the top end face diameter of described little steel bushing (2) less than described big steel bushing (1) inner chamber top end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010182295 CN101859505A (en) | 2010-05-25 | 2010-05-25 | Lock core of anti-theft tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010182295 CN101859505A (en) | 2010-05-25 | 2010-05-25 | Lock core of anti-theft tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101859505A true CN101859505A (en) | 2010-10-13 |
Family
ID=42945382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010182295 Pending CN101859505A (en) | 2010-05-25 | 2010-05-25 | Lock core of anti-theft tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101859505A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231219A (en) * | 2011-05-17 | 2011-11-02 | 上海大施工贸有限公司 | Metal core used in electronic anti-theft tags and manufacturing method thereof |
| CN103325299A (en) * | 2012-03-20 | 2013-09-25 | 约翰·谢尔勒鲁普 | Security tag assembly |
| CN105121764A (en) * | 2013-02-19 | 2015-12-02 | 泰科消防及安全有限公司 | Security tag detacher activation system |
| CN110374407A (en) * | 2019-08-20 | 2019-10-25 | 广州维琼兰科技有限公司 | A kind of novel anti-theft tag |
| CN111557534A (en) * | 2020-06-30 | 2020-08-21 | 重庆工业职业技术学院 | Briefcase for finance |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4417821A1 (en) * | 1994-05-20 | 1995-11-23 | Esselte Meto Int Gmbh | Anti-theft garment tag for store merchandise |
| CN2515749Y (en) * | 2001-12-19 | 2002-10-09 | 深圳蓉华电子有限公司 | Strong lockneedle theft-proof label and lock operner for open-shelf goods |
| US20060070410A1 (en) * | 2003-08-29 | 2006-04-06 | Arthur Fuss | Product anti-theft device |
| US20070152836A1 (en) * | 2005-12-29 | 2007-07-05 | Alpha Security Products, Inc. | Theft deterrent device with onboard alarm |
| CN200947228Y (en) * | 2006-09-11 | 2007-09-12 | 赵沛字 | Novel burglar-proof label |
| CN201042941Y (en) * | 2007-06-06 | 2008-04-02 | 东风汽车有限公司 | Rear-view mirror for vehicle |
| CN201122318Y (en) * | 2007-08-12 | 2008-09-24 | 杭州美思特电子科技有限公司 | Reversible anti-theft label |
-
2010
- 2010-05-25 CN CN 201010182295 patent/CN101859505A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4417821A1 (en) * | 1994-05-20 | 1995-11-23 | Esselte Meto Int Gmbh | Anti-theft garment tag for store merchandise |
| CN2515749Y (en) * | 2001-12-19 | 2002-10-09 | 深圳蓉华电子有限公司 | Strong lockneedle theft-proof label and lock operner for open-shelf goods |
| US20060070410A1 (en) * | 2003-08-29 | 2006-04-06 | Arthur Fuss | Product anti-theft device |
| US20070152836A1 (en) * | 2005-12-29 | 2007-07-05 | Alpha Security Products, Inc. | Theft deterrent device with onboard alarm |
| CN200947228Y (en) * | 2006-09-11 | 2007-09-12 | 赵沛字 | Novel burglar-proof label |
| CN201042941Y (en) * | 2007-06-06 | 2008-04-02 | 东风汽车有限公司 | Rear-view mirror for vehicle |
| CN201122318Y (en) * | 2007-08-12 | 2008-09-24 | 杭州美思特电子科技有限公司 | Reversible anti-theft label |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231219A (en) * | 2011-05-17 | 2011-11-02 | 上海大施工贸有限公司 | Metal core used in electronic anti-theft tags and manufacturing method thereof |
| CN103325299A (en) * | 2012-03-20 | 2013-09-25 | 约翰·谢尔勒鲁普 | Security tag assembly |
| CN103325299B (en) * | 2012-03-20 | 2016-07-06 | 布瑞本资产控股有限责任公司 | Security tags assembly |
| CN105121764A (en) * | 2013-02-19 | 2015-12-02 | 泰科消防及安全有限公司 | Security tag detacher activation system |
| CN105121764B (en) * | 2013-02-19 | 2017-07-04 | 泰科消防及安全有限公司 | Safety label stripping attachment activation system |
| CN110374407A (en) * | 2019-08-20 | 2019-10-25 | 广州维琼兰科技有限公司 | A kind of novel anti-theft tag |
| CN110374407B (en) * | 2019-08-20 | 2024-04-26 | 广州维琼兰科技有限公司 | Anti-theft label |
| CN111557534A (en) * | 2020-06-30 | 2020-08-21 | 重庆工业职业技术学院 | Briefcase for finance |
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Application publication date: 20101013 |