CN114293862A - Anti-theft door lock chain capable of preventing cut-off and break-in - Google Patents
Anti-theft door lock chain capable of preventing cut-off and break-in Download PDFInfo
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- CN114293862A CN114293862A CN202111429556.9A CN202111429556A CN114293862A CN 114293862 A CN114293862 A CN 114293862A CN 202111429556 A CN202111429556 A CN 202111429556A CN 114293862 A CN114293862 A CN 114293862A
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Abstract
The invention relates to the technical field of security doors, and discloses a security door chain for preventing cut-off and intrusion, which comprises a door frame part, a door panel part and a cut-off prevention chain, wherein the door frame part comprises a fixed rail, a clamping slide block is slidably mounted in the fixed rail, a supporting spring is mounted on the clamping slide block, the door panel part comprises a fixed plate, a rotatable sliding connection ring is mounted on the fixed plate, and the sliding connection ring is provided with a notch groove; according to the anti-theft door chain capable of preventing cut-off and intrusion, due to the arrangement of the anti-cut-off function structure, the door frame part and the door panel part in the anti-theft door chain structure are connected through the anti-cut-off chain, the anti-cut-off chain is composed of the three-layer structure of the functional sheath, the supporting anti-cut layer and the chain, and compared with the conventional anti-theft door lock chain which is composed of the two-layer structure of the chain and the rubber sleeve, the anti-cut-off chain has a stronger effect of preventing violent intrusion.
Description
Technical Field
The invention relates to the technical field of security doors, in particular to a security door chain for preventing cut-off and break-in.
Background
Along with the progress of people's safety consciousness, all kinds of safety protection equipment are also constantly upgrading, the burglary-resisting door is the higher emergency exit of factor of safety, the burglary-resisting door is through being equipped with the pickproof lock and inner face theftproof chain realize outside theftproof and break the door and go into the effect, the theftproof chain is through connecting realization to door and door frame and avoiding opening the door the effect that is pushed open by the brute force in the twinkling of an eye, however current burglary-resisting door chain still only is in to connect and prevents pushing open the effect, when meetting illegal and breaking into, thereby the person of rushing into accessible vice pushes the chain and cuts off and makes it lose the safety protection effect.
Disclosure of Invention
It is an object of the present invention to provide a cut-through intrusion prevention security door chain that overcomes the above-mentioned deficiencies of the prior art.
The invention is realized by the following technical scheme.
The invention relates to a theft-proof door chain for preventing cut-off intrusion, which comprises a door frame part, a door panel part and a cut-off preventing chain, the door frame part comprises a fixed rail, a clamping slide block is arranged in the fixed rail in a sliding way, a supporting spring is arranged on the clamping slide block, the door plate part comprises a fixed plate, the fixed plate is provided with a rotatable sliding connection ring, the sliding connection ring is provided with a notch groove, the fixed plate is fixedly provided with the anti-cutting lock chain, the tail end of the anti-cutting lock chain can be fixedly arranged in the clamping slide block, the anti-cutting chain comprises a functional sheath, a lubricating oil interlayer is arranged in the functional sheath, a chain is arranged in the functional sheath, the array is equipped with the support inoxidizing coating in the function sheath, the support inoxidizing coating is equipped with wide portion, the support inoxidizing coating is equipped with narrow portion, be equipped with well kenozooecium in the support inoxidizing coating, the chain is arranged in the well kenozooecium.
According to a further technical scheme, a transmission connecting rod is installed on the outer side of the sliding connection ring.
According to a further technical scheme, the transmission connecting rod is at least of a two-connecting-rod structure.
According to a further technical scheme, a transmission rubber sleeve is installed at the tail end of the transmission connecting rod.
According to the further technical scheme, the fixed rail is provided with a door frame fixing plate.
According to the technical scheme, the door frame fixing plate is provided with a fixing block, and the fixing block is connected with the fixing rail.
According to the technical scheme, the fixing plate is provided with an installation block, the installation block is rotatably connected with the starting end of the anti-cutting chain, and the tail end of the anti-cutting chain is provided with a clamping block.
The invention has the beneficial effects that:
according to the anti-theft door chain capable of preventing cutting intrusion, the anti-cutting chain is arranged through the anti-cutting function structure, the door frame portion and the door panel portion in the anti-theft door lock chain structure are connected through the anti-cutting chain, the anti-cutting chain is composed of the three-layer structure of the functional sheath, the supporting anti-cutting layer and the chain, compared with the conventional anti-theft door lock chain, the anti-cutting chain has a stronger anti-violence effect, when a pincer tool is used for cutting forward, the functional sheath is firstly damaged, and the lubricating oil is injected into the sandwich layer of the functional sheath, so that lubricating oil is fully distributed around a stressed point of the pincer tool, meanwhile, the supporting anti-cutting layer is provided with the wide portion and the narrow portion, the blunt end of the pincer tool is supported, force application of the sharp end to the chain is avoided, and the effect is matched, so that the supporting anti-cutting layer and the pincer tool generate a sliding instant force breaking effect in the cutting process, and the problem of avoiding cutting is solved;
according to the anti-theft door chain capable of preventing cut-off intrusion, the anti-cut-off function structure is arranged, the door frame part is used for fixing the chain structure through the fixed rail and the internal fixed sliding block, compared with the fixed part of the conventional anti-theft door chain, the fixed rail is internally provided with the supporting spring, the fixed sliding block is used for fixing the chain structure, the chain structure is not clamped and fixed by putting the chain structure clamping block into the bottom of the fixed part, and therefore when a pincer-type tool is used for exerting force on the front lower side, the force firstly causes the supporting spring to retract to drive the chain torsion angle, and the force losing and breaking-off effect is achieved by matching with the anti-cut-off chain structure;
the anti-theft door chain for preventing cut-off and intrusion of the invention can ensure the chain state by arranging the structure with the cut-off prevention function and the door plate part by the fixing plate and the sliding connection ring, the sliding connection ring is provided with a notch structure for placing the cut-off prevention chain, the outer side of the sliding connection ring is connected with the door plate handle through the connecting rod structure and the tail end rubber sleeve, the connecting rod structure is driven to transmit through the door opening action, so that the sliding connection ring rotates, thereby leading the gap structure to drive the anti-cutting chain to have the effect of straightening the corner, ensuring that the narrow part of the supporting protective layer is outward, thereby ensuring to achieve the effect of avoiding the sharp end of the pincer-like tool from applying force to the chain, simultaneously ensuring that the oil agent on the sandwich layer is output outwards more quickly when the functional sheath is broken due to the straightening effect, thereby ensure that pincers class instrument and inside support inoxidizing coating possess high lubricated effect thereby ensure to break loose and prevent cutting the function.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged schematic view of the structure of the anti-cutting chain 20 in fig. 1;
FIG. 3 is an enlarged view of the structure of the support shield 28 of FIG. 2;
fig. 4 is an enlarged schematic view of a structure at a in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The anti-theft door chain capable of preventing cut-off intrusion described in conjunction with fig. 1-4 comprises a door frame portion 11, a door panel portion 12 and a cut-off prevention chain 20, wherein the door frame portion 11 comprises a fixed rail 14, a clamping slide block 16 is slidably mounted in the fixed rail 14, a support spring 15 is mounted on the clamping slide block 16, the door panel portion 12 comprises a fixed plate 21, a rotatable sliding connection ring 23 is mounted on the fixed plate 21, the sliding connection ring 23 is provided with a notch groove 35, the fixed plate 21 is fixedly mounted with the cut-off prevention chain 20, the tail end of the cut-off prevention chain 20 can be fixedly arranged in the clamping slide block 16, the cut-off prevention chain 20 comprises a functional sheath 26, a lubricating oil interlayer 27 is arranged in the functional sheath 26, a chain 29 is arranged in the functional sheath 26, a support protective layer 28 is arranged in the functional sheath 26 in an array manner, the support protective layer 28 is provided with a wide portion 30, the supporting and protecting layer 28 is provided with a narrow part 31, a hollow part 32 is arranged in the supporting and protecting layer 28, and the chain 29 is arranged in the hollow part 32.
When the anti-cutting chain 20 is used, the anti-cutting chain 20 penetrates through the notch groove 35 to enable the tail end clamping structure to be clamped on the clamping slide block 16 for fixing, when door opening operation is carried out, the connecting rod transmission structure enables the sliding connection ring 23 to rotate clockwise, so that the straightening effect of the anti-cutting chain 20 is realized by upward sliding of the notch groove 35, the functional sheath 26 is in a tightened state and the narrow part 31 is vertically outward under the condition that the anti-cutting chain 20 is in the straightened state, the surface layer of the functional sheath 26 is firstly damaged by force of the clamp type tool, so that lubricating oil in the lubricating oil interlayer 27 flows out along the force application structure of the clamp type tool, further force is applied to enable the surface of the supporting protective layer 28 to also have lubricating oil, the wide part 30 is matched to support the blunt part of the clamp type tool, the sharp part of the clamp type tool cannot be cut into the narrow part 31 and inside, and the lubricating oil is matched with the lubricating effect, so that the chain slips outwards and is disengaged, and pincers class instrument is at the application of force in-process, and the downward shear of exerting oneself has stronger cutting-off force, and when its downward shear of exerting oneself, the dynamics passes through supporting spring 15 and drives the solid slider 16 of card at first and slide downwards, and the cooperation is pressed from both sides and is close the effect with lubricated finish, reaches to shake off more fast and avoids the cracked problem of cutting shear atress.
Preferably, a transmission link 24 is installed outside the slip ring 23.
The door opening transmission effect is realized through the transmission connecting rod 24.
Preferably, the transmission link 24 has at least a two-link structure.
At least two connecting rod structures can avoid the influence of force application on the daily opening door.
Preferably, the end of the transmission connecting rod 24 is provided with a transmission rubber sleeve 25.
Is connected with the door handle for transmission through a transmission rubber sleeve 25.
Preferably, the fixed rail 14 is mounted with a doorframe fixed plate 13.
The door frame fixing plate 13 is arranged in the door frame plate for stable installation.
Preferably, the door frame fixing plate 13 is provided with a fixing block 18, and the fixing block 18 is connected with the fixing rail 14.
The fixing effect on the fixing rail 14 is achieved by the fixing block 18.
Preferably, the fixing plate 21 is provided with an installation block 22, the installation block 22 is rotatably connected with the starting end of the cut-off prevention chain 20, and the tail end of the cut-off prevention chain 20 is provided with a clamping block 17.
The anti-cutting chain 20 is connected through the mounting block 22, and the clamping block 17 and the clamping slide block 16 can be clamped and fixed.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a prevent cutting off burglary-resisting door chain of invading, includes door frame portion, door plant portion and prevents cutting off the chain, its characterized in that: the door frame portion is including fixed rail, slidable mounting has the solid slider of card in the fixed rail, support spring is installed to the solid slider of card, door plant portion includes the fixed plate, rotatable slip ring is installed to the fixed plate, the slip ring is equipped with the breach groove, fixed plate fixed mounting has prevent cutting the chain, prevent cutting the chain end can fix set up in the solid slider of card, prevent cutting the chain and include the function sheath, be equipped with the lubricating oil intermediate layer in the function sheath, be equipped with the chain in the function sheath, the array is equipped with the support inoxidizing coating in the function sheath, it is equipped with wide portion to support the inoxidizing coating, it is equipped with the narrow part to support the inoxidizing coating, it is equipped with well kenozooecium in the well kenozooecium to support the inoxidizing coating, the chain is arranged in well kenozooecium.
2. A shear-resistant security door chain according to claim 1, wherein: and a transmission connecting rod is arranged on the outer side of the sliding connection ring.
3. A shear-resistant security door chain according to claim 2, wherein: the transmission connecting rod is at least of a two-connecting-rod structure.
4. A shear-resistant security door chain according to claim 2, wherein: and the tail end of the transmission connecting rod is provided with a transmission rubber sleeve.
5. A shear-resistant security door chain according to claim 1, wherein: the fixed rail is provided with a door frame fixed plate.
6. A shear-resistant security door chain according to claim 5, wherein: the fixed block is installed to the door frame fixed plate, the fixed block with the stationary rail is connected.
7. A shear-resistant security door chain according to claim 1, wherein: the fixed plate is provided with an installation block, the installation block is rotatably connected with the starting end of the anti-cutting chain, and the tail end of the anti-cutting chain is provided with a clamping block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429556.9A CN114293862A (en) | 2021-11-29 | 2021-11-29 | Anti-theft door lock chain capable of preventing cut-off and break-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429556.9A CN114293862A (en) | 2021-11-29 | 2021-11-29 | Anti-theft door lock chain capable of preventing cut-off and break-in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114293862A true CN114293862A (en) | 2022-04-08 |
Family
ID=80965477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111429556.9A Pending CN114293862A (en) | 2021-11-29 | 2021-11-29 | Anti-theft door lock chain capable of preventing cut-off and break-in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114293862A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4648642A (en) * | 1985-04-15 | 1987-03-10 | Berich John J | Security chain lock for doors |
| WO1989004414A1 (en) * | 1987-11-02 | 1989-05-18 | Roberts Weaver Design Limited | Security device |
| CN2099814U (en) * | 1991-06-07 | 1992-03-25 | 张柏令 | Theft-proof chain of chain lock |
| CN2460688Y (en) * | 2000-07-04 | 2001-11-21 | 李存进 | Anti-theft chain on door lock |
| CN104420377A (en) * | 2013-08-19 | 2015-03-18 | 江阴斯强金属制品有限公司 | Stainless steel wire with cut oil layer |
| CN107237564A (en) * | 2017-08-14 | 2017-10-10 | 殷海涛 | A kind of anti-theft warning device |
| CN208168588U (en) * | 2018-04-30 | 2018-11-30 | 金志刚 | A kind of use in construction of door and window safety theft-proof chain |
| CN108915437A (en) * | 2018-06-27 | 2018-11-30 | 许加成 | Novel anti-theft device |
| CN209799662U (en) * | 2018-09-13 | 2019-12-17 | 郑州大学 | Novel anti-theft chain |
| CN211396986U (en) * | 2019-11-19 | 2020-09-01 | 晋江一创科技有限公司 | Alarm assembly of intelligence lock |
| US20200300010A1 (en) * | 2017-04-24 | 2020-09-24 | P. J. Doherty | Door chain device |
-
2021
- 2021-11-29 CN CN202111429556.9A patent/CN114293862A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4648642A (en) * | 1985-04-15 | 1987-03-10 | Berich John J | Security chain lock for doors |
| WO1989004414A1 (en) * | 1987-11-02 | 1989-05-18 | Roberts Weaver Design Limited | Security device |
| CN2099814U (en) * | 1991-06-07 | 1992-03-25 | 张柏令 | Theft-proof chain of chain lock |
| CN2460688Y (en) * | 2000-07-04 | 2001-11-21 | 李存进 | Anti-theft chain on door lock |
| CN104420377A (en) * | 2013-08-19 | 2015-03-18 | 江阴斯强金属制品有限公司 | Stainless steel wire with cut oil layer |
| US20200300010A1 (en) * | 2017-04-24 | 2020-09-24 | P. J. Doherty | Door chain device |
| CN107237564A (en) * | 2017-08-14 | 2017-10-10 | 殷海涛 | A kind of anti-theft warning device |
| CN208168588U (en) * | 2018-04-30 | 2018-11-30 | 金志刚 | A kind of use in construction of door and window safety theft-proof chain |
| CN108915437A (en) * | 2018-06-27 | 2018-11-30 | 许加成 | Novel anti-theft device |
| CN209799662U (en) * | 2018-09-13 | 2019-12-17 | 郑州大学 | Novel anti-theft chain |
| CN211396986U (en) * | 2019-11-19 | 2020-09-01 | 晋江一创科技有限公司 | Alarm assembly of intelligence lock |
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