CN108468473B - Antitheft door closing triggering device for narrow space - Google Patents
Antitheft door closing triggering device for narrow space Download PDFInfo
- Publication number
- CN108468473B CN108468473B CN201810142982.6A CN201810142982A CN108468473B CN 108468473 B CN108468473 B CN 108468473B CN 201810142982 A CN201810142982 A CN 201810142982A CN 108468473 B CN108468473 B CN 108468473B
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- cover plate
- guide rod
- triggering
- mounting block
- fixed
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
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- Burglar Alarm Systems (AREA)
- Push-Button Switches (AREA)
Abstract
The invention provides an anti-theft door closing triggering device for a narrow space, and belongs to the technical field of control switches. The anti-theft door closing triggering device for the narrow space comprises a body and a cover plate, wherein one ends of the body and the cover plate are mutually hinged, a triggering structure is embedded in a hinged structure of the body and the cover plate, a lock hole is formed in the body, a lock tongue mechanism with a lock tongue is arranged on the cover plate, and the lock tongue mechanism is electrically connected to the triggering structure directly or through a micro switch, so that the anti-theft door closing triggering device is simple and compact in structure; the invention can not only set the triggering structure as a pogpin switch, but also can set the triggering structure as a combined structure of the cam mechanism and the guide rod mechanism, and realize conduction through the micro switch, so that the triggering structure has small volume and high insulativity, is suitable for a narrow installation space and different materials, and meanwhile, the triggering of the triggering structure depends on the opening and closing states of the body and the cover plate, and the setting mode can not find the triggering position visually, has higher concealment, can prevent false triggering, and can further improve the anti-theft performance.
Description
Technical Field
The invention relates to the technical field of control switches, in particular to an anti-theft door closing triggering device for a narrow space.
Background
People often store valuables, so the antitheft performance becomes a primary measure of people's valuables.
The anti-theft door is used as a main component of anti-theft equipment, and the current switches for the anti-theft door in the market are divided into three types, wherein the first type is a mechanical switch, and the opening and the closing are realized through a limit switch and a tact switch; the second type is a magnetic switch, and the opening and the closing are realized through magnetic attraction such as a Hall switch; and the third is a photoelectric switch, and the opening and the closing are realized by shielding light rays. However, for the mechanical switch, due to the self-volume problem, the mechanical switch is difficult to install in a narrow space, is easy to touch by mistake, is easy to be closed manually and actively, and is difficult to meet the high anti-theft requirement; the magnetic switch is difficult to realize use on products with metal piece structures, and the application range is small; photoelectric switch is also easy to be manually closed and lose anti-theft effect. Therefore, all the switches used for anti-theft door closing in the market at present have certain use defects.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an anti-theft door closing triggering device for a narrow space, which is provided with a structure that one end of a main body and one end of a cover plate are mutually hinged, a triggering structure is arranged at the hinge joint of the main body and the cover plate, the triggering structure rotates through the rotation of the cover plate, the triggering structure is directly or indirectly electrically connected to a lock tongue mechanism, the trigger structure is hidden in the hinge structure, small, the less arrangement space of adaptation, and realized that trigger structure can only be controlled through opening and close of apron and body, prevent to appear not touching the manual closure problem that arouses, the guarantee nature is higher, and theftproof ability is stronger, simultaneously, trigger structure all realizes insulating installation, and adaptable is higher on different materials.
The specific technical scheme is as follows:
an antitheft door closing triggering device for a small space, comprising: the body, apron and spring bolt mechanism, the one end of body is articulated with the one end of apron, and the relative cavity has all been seted up on body and the apron, simultaneously, the lockhole has been seted up on the body and be located the one end that deviates from articulated department, and in the cavity of apron and be located the one end that deviates from articulated department and be provided with spring bolt mechanism, and the spring bolt of spring bolt mechanism is the motion of stretching out or retracting into the apron, have such characteristics, articulated department at body and apron is provided with hinge structure, hinge structure is embedded to be equipped with trigger structure, trigger structure is including being fixed in on the body a part and being fixed in another part on the apron, trigger structure is directly connected with spring bolt mechanism electricity, or trigger structure is connected on micro-gap switch, micro-gap switch is connected with spring bolt mechanism electricity.
The anti-theft door closing triggering device for the narrow space comprises two body substrates fixed on the body and two cover plate substrates fixed on the cover plate, wherein the two body substrates are arranged at intervals and in parallel, the two cover plate substrates are positioned in intervals formed by the two body substrates, and a hinge pin is arranged at the hinge joint of the body substrate and the cover plate substrate.
The anti-theft door closing triggering device for the narrow space comprises a triggering structure, wherein the triggering structure is a telescopic metal conductive probe switch, the triggering structure comprises a male seat mounting block, a female seat mounting block, a male seat and a female seat, the male seat mounting block is fixed on a body, the female seat mounting block is fixed on a cover plate and rotates along with the cover plate, one end face of the male seat mounting block is attached to one end face of the female seat mounting block, meanwhile, the male seat is embedded on one end face of the male seat mounting block, which is located on the attached female seat mounting block, and can elastically stretch and retract along a direction away from or close to the female seat mounting block, a fixed female seat is embedded on one end face of the attached male seat mounting block, and when the cover plate and the body are opened, the male seat and the female seat are located at staggered positions, and when the cover plate and the body are closed, the male seat and the female seat are located at opposite positions.
The anti-theft door closing triggering device for the narrow space is characterized in that the triggering structure is arranged in an interval formed by two cover plate substrates, and the female seat mounting block is fixed on one cover plate substrate.
The anti-theft door closing triggering device for the narrow space is characterized in that the male seat and the female seat are conductive rods, and a spring is arranged at one end of the male seat in the male seat mounting block.
The anti-theft door closing triggering device for the narrow space is characterized in that the triggering structure is a cam mechanism, the cam mechanism is arranged in an interval formed by two cover plate substrates, the cam mechanism is fixed on one of the cover plate substrates, the cam mechanism comprises a cam, and the protruding part of the cam is positioned on one side of the cover plate substrate close to the body.
The anti-theft door closing triggering device for the narrow space comprises a concave cavity of a body, wherein one end, close to a hinge position, of the concave cavity is provided with a guide rod mechanism, the guide rod mechanism comprises a guide rod support and a guide rod, a guide rod hole is formed in the guide rod support, the through direction of the guide rod hole is from one end of the hinge position of the body to one end of a lock hole, the guide rod penetrates through the guide rod hole, and one end of the guide rod abuts against a cam after penetrating through the side wall of the concave cavity of the body.
The anti-theft door-closing triggering device for the narrow space comprises a concave cavity of a body, wherein a micro switch is arranged in the concave cavity and close to a guide rod mechanism, the micro switch is positioned on one side, deviating from a cam, of the guide rod mechanism, the micro switch comprises a pressing part and a circuit board, the pressing part is welded on the circuit board, the circuit board is fixed on a guide rod support, and meanwhile, one end, deviating from the cam, of the guide rod is abutted against the pressing part.
The anti-theft door closing triggering device for the narrow space is characterized in that the circuit board is fixed on the guide rod bracket through a threaded fastener or a buckle structure; the guide rod bracket is fixed on the body through a threaded fastener or a buckle structure.
The technical scheme has the positive effects that: the body and the cover plate are hinged through the hinge structure, meanwhile, the trigger structure is embedded in the hinge structure and directly controls the lock tongue mechanism or controls the lock tongue mechanism through the micro switch, the conduction of the trigger structure is controlled by the closing state between the body and the cover plate, the problem of manual false closing is prevented, the lock cannot be opened from the outside after the lock is closed, the anti-theft performance is higher, meanwhile, the trigger structure is embedded in the hinge structure, the volume is small, the insulation performance is high, the adaptability is higher, the position of the trigger structure cannot be found visually, the concealment is good, and the anti-theft performance is further improved.
Drawings
FIG. 1 is a block diagram of a preferred embodiment of an anti-theft door closure triggering apparatus for small spaces in accordance with the present invention;
FIG. 2 is a state diagram of the body and cover of FIG. 1 when opened;
FIG. 3 is a state diagram of the body and cover of FIG. 1 when closed;
FIG. 4 is a block diagram of another preferred embodiment of an anti-theft door trigger for small spaces in accordance with the present invention;
FIG. 5 is a state diagram of the body and cover of FIG. 4 when opened;
fig. 6 is a state diagram of the body and the cover plate in fig. 4 when they are closed.
In the accompanying drawings: 1. a body; 11. a body substrate; 12. a lock hole; 2. a cover plate; 21. a cover substrate; 3. a latch bolt mechanism; 4. a pogpin (retractable metal conductive probe) switch; 41. a male seat mounting block; 42. a female seat mounting block; 43. a male seat; 44. a female seat; 5. a micro-switch; 51. a pressing part; 52. a circuit board; 6. a cam mechanism; 7. a guide rod mechanism; 71. a guide rod bracket; 72. a guide rod; 8. and a pin shaft.
Detailed Description
In order to make the technical means, the creation features, the achievement of the purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the technical solution provided by the present invention with reference to fig. 1 to 6, but the following disclosure is not limited to the present invention.
FIG. 1 is a block diagram of a preferred embodiment of an anti-theft door closure triggering apparatus for small spaces in accordance with the present invention; FIG. 4 is a block diagram of another preferred embodiment of an anti-theft door trigger for small spaces of the present invention. As shown in fig. 1 and 4, the anti-theft door closing triggering device for a small space provided in this embodiment includes: the body 1 and the cover plate 2, one end of the body 1 and one end of the cover plate 2 are mutually hinged through a hinge structure, concave cavities are formed in the body 1 and the cover plate 2, and the concave cavities in the body 1 and the cover plate 2 are oppositely arranged. Simultaneously, inlay in the hinge structure of body 1 and apron 2 and be equipped with trigger structure, trigger structure's part is fixed in on the body 1, trigger structure's another part is fixed in on the apron 2 and follow the upset of apron 2 and rotate, and in the cavity of apron 2 and lie in the one end that deviates from hinge structure and be provided with spring bolt mechanism 3, the motion that stretches out or retract apron 2 can be done to the spring bolt in spring bolt mechanism 3, still with body 1 on and lie in the one end that deviates from hinge structure and seted up lockhole 12, and when body 1 and apron 2 are closed, the spring bolt in spring bolt mechanism 3 can stretch into in the lockhole 12 of body 1, thereby realize the locking of apron 2 and body 1, play the effect of theftproof. At this time, the trigger structure is directly or indirectly electrically connected to the latch mechanism 3, and the trigger structure is driven to be conducted through the closing relationship between the cover plate 2 and the body 1, so that whether the latch mechanism 3 is controlled to act or not is controlled, the trigger structure is completely controlled by the closing relationship between the body 1 and the cover plate 2, the problem of false closing caused by no human touching is avoided, meanwhile, the trigger structure is embedded in the hinge structure, so that the structure is small in size, beneficial to installation, and can realize insulated installation, the applicable material range is wider, the position of the trigger structure cannot be found visually, the concealment is good, and the anti-theft performance is further improved.
Specifically, the hinge structure at the hinge position of the body 1 and the cover plate 2 comprises two body substrates 11 and two cover plate substrates 21, wherein the two body substrates 11 are fixed on the body 1, the two cover plate substrates 21 are fixed on the cover plate 2, meanwhile, the two body substrates 11 are arranged in parallel and at intervals, the two cover plate substrates 21 are arranged in parallel and at intervals, in addition, the two cover plate substrates 21 are arranged in the interval between the two body substrates 11, and one cover plate substrate 21 is hinged with one body substrate 11; meanwhile, two pin shafts 8 are arranged at the hinge joint of the body 1 and the cover plate 2, the axes of the two pin shafts 8 are positioned on the same straight line, and one pin shaft 8 is arranged at the hinge joint of the body substrate 11 and the cover plate substrate 21, so that the pin shaft 8 is prevented from affecting the rotation of the triggering structure, and the structure is more reasonable.
Specifically, the bolt mechanism 3 comprises a driver and a transmission part besides the bolt, the driver is connected with the transmission part, the transmission part is connected to the bolt, the driver is electrically connected to the trigger structure, preferably, the driver is a motor, and the extension and non-extension actions of the bolt are controlled by the conduction of the trigger structure, so that the dead locking anti-theft is realized.
Embodiment one:
FIG. 2 is a state diagram of the body and cover of FIG. 1 when opened; fig. 3 is a state diagram of the body and the cover plate in fig. 1 when they are closed. As shown in fig. 1, 2 and 3, specifically, the triggering structure in the hinge structure of the body 1 and the cover plate 2 is a retractable metal conductive probe switch (pogpin switch 4).
Specifically, the pogpin switch 4 is disposed in an interval formed by the two cover boards 21, the pogpin switch 4 includes a male seat mounting block 41, a female seat mounting block 42, a male seat 43 and a female seat 44, the male seat mounting block 41 is fixed on the body 1, the female seat mounting block 42 is fixed on the cover board 2, the male seat mounting block 41 and the female seat mounting block 42 are both provided with two parallel end faces, one end face of the male seat mounting block 41 is attached to one end face of the female seat mounting block 42, a movable male seat 43 is embedded on the male seat mounting block 41 and located on the end face attached to the female seat mounting block 42, the male seat 43 can perform elastic telescopic motion in a direction approaching or departing from the female seat mounting block 42, a fixed female seat 44 is embedded on the female seat mounting block 42 and located on the end face attached to the male seat mounting block 41, and the other end face of the female seat mounting block 42 is fixed on the cover board 21 and rotates along with the rotation of the cover board 21. When the body 1 and the cover plate 2 are in an opened state, the male seat 43 and the female seat 44 are in staggered positions, and at the moment, the pogpin switch 4 is in a non-conducting state, and the lock tongue mechanism 3 does not act; when the body 1 and the cover plate 2 are in a closed state, the male seat 43 and the female seat 44 are in opposite positions, at the moment, the pogpin switch 4 is conducted, and the lock tongue in the lock tongue mechanism 3 extends into the lock hole 12 of the body 1, so that the body 1 and the cover plate 2 are locked, and an anti-theft effect is achieved.
More specifically, the male seat 43 and the female seat 44 are conductive rods, and a spring is arranged at one end of the male seat 43 in the male seat mounting block 41, so that the male seat 43 and the female seat 44 can be adapted to be in staggered and opposite positions, and the non-conduction state and the conduction state of the pogpin switch 4 are realized, and the structure is more reasonable.
The anti-theft door closing triggering device for the narrow space provided by the embodiment selects the pogpin switch 4 as a triggering structure, and the pogpin switch 4 is directly and electrically connected with the spring bolt mechanism 3, so that the structure is simple and compact; through setting up the pogpin switch 4 of electricity on spring bolt mechanism 3 in the articulated department of body 1 and apron 2, not only small can realize insulating installation moreover, be suitable for narrow and small installation space and different materials, the adaptability is higher, simultaneously, the switch-on of pogpin switch 4 that sets up in articulated department depends on the open and close state of body 1 and apron 2, and this kind of setting up mode can't find the trigger position from the vision, and the disguise is higher, can prevent the mistake and touch, can also further promote the theftproof performance.
Embodiment two:
FIG. 5 is a state diagram of the body and cover of FIG. 4 when opened; fig. 6 is a state diagram of the body and the cover plate in fig. 4 when they are closed. As shown in fig. 4, 5 and 6, specifically, the triggering structure in the hinge structure of the body 1 and the cover plate 2 is a cam mechanism 6 and a guide rod mechanism 7, one end of the guide rod mechanism 7 is connected to the cam mechanism 6, the other end is connected to a micro switch 5, and meanwhile, the micro switch 5 is electrically connected with the latch mechanism 3, so that the guide rod mechanism 7 is pushed to move by the cam mechanism 6, and the guide rod mechanism 7 presses the micro switch 5, so that the latch mechanism 3 is controlled to move.
Specifically, the cam mechanism 6 is disposed in a space formed by the two cover substrates 21, and the cam mechanism 6 includes a cam that is fixed to one of the cover substrates 21 and rotates following the rotation of the cover substrate 21, and at the same time, the protruding portion of the cam is located on the side of the cover substrate 21 close to the body 1. When the body 1 and the cover plate 2 are in an opened state, the protruding part of the cam is far away from the body 1, and at the moment, the cam mechanism 6 does not act on the guide rod mechanism 7, so that the micro switch 5 is in a non-conducting state, and the lock tongue mechanism 3 does not act; when the body 1 and the cover plate 2 are in a closed state, the protruding part on the cam is opposite to the guide rod mechanism 7, so that the guide rod mechanism 7 presses the micro switch 5, at the moment, the micro switch 5 is conducted, and a lock tongue in the lock tongue mechanism 3 extends into the lock hole 12 of the body 1, so that the body 1 and the cover plate 2 are locked, and an anti-theft effect is achieved.
More specifically, the guide rod mechanism 7 includes a guide rod support 71 and a guide rod 72, the guide rod support 71 is fixed in the cavity of the body 1 and is close to one end of the hinge, a guide rod hole is formed in the guide rod support 71, the penetrating direction of the guide rod hole is from one end of the hinge of the body 1 to one end of the lock hole 12, meanwhile, the guide rod 72 is penetrated in the guide rod hole, the guide rod 72 can move in the guide rod hole along the arrangement direction of the guide rod 72, one end of the guide rod 72 penetrates through the side wall of the body 1 and then abuts against the cam of the cam mechanism 6, and moves linearly in the guide rod hole along with the radian change of the protruding part on the cam, and the other end of the guide rod 72 faces into the cavity of the body 1.
More specifically, the micro switch 5 includes a pressing portion 51 and a circuit board 52, the pressing portion 51 is welded on the circuit board 52, and the circuit board 52 is fixed on the guide rod support 71, at this time, one end of the guide rod 72 in the guide rod support 71 abuts against the pressing portion 51, and the linear movement of the guide rod 72 is realized through the rotation of the cam, so that the pressing portion 51 of the micro switch 5 is pressed, thereby realizing the conduction of the micro switch 5, preventing the false closing by people, and ensuring higher security.
Preferably, the circuit board 52 is fixed on the guide rod support 71 through a threaded fastener or a buckle structure, meanwhile, the guide rod support 71 is fixed in a concave cavity of the body 1 through a threaded fastener or a buckle structure, so that the circuit board is more convenient to assemble and disassemble, is beneficial to later maintenance and repair, and the microswitch 5 is provided with a switch which can be pressed repeatedly, can be used repeatedly, and is lower in cost.
The anti-theft door closing triggering device for the narrow space, provided by the embodiment, has the advantages that the triggering structure is in the combined form of the cam mechanism 6 and the guide rod mechanism 7, and the micro switch 5 connected with the guide rod mechanism 7 is arranged in the body 1, so that the structure is simple and compact; through set up the micro-gap switch 5 of electricity on lock tongue mechanism 3 in the articulated department of body 1 and apron 2, micro-gap switch 5 passes through guide arm mechanism 7 and connects on cam mechanism 6, not only small, the insulativity is high, be adapted to narrow and small installation space and different materials, the adaptability is higher, simultaneously, whether cam mechanism 6 that sets up in articulated department acts on micro-gap switch 5 depends on the state of opening and close of body 1 and apron 2, and this kind of setting up mode can't find the trigger position in the vision, the disguise is higher, can prevent the mistake and touch, can also further promote the theftproof performance, the same thing has solved the not enough that present trigger structure exists, promote the development of trade.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (6)
1. An antitheft door closing triggering device for a small space, comprising: the hinge structure is characterized in that a hinge structure is arranged at the hinge position of the body and the cover plate, a triggering structure is embedded in the hinge structure, the triggering structure comprises one part fixed on the body and the other part fixed on the cover plate, and the triggering structure is directly electrically connected with the spring bolt mechanism or is connected with a micro switch which is electrically connected with the spring bolt mechanism;
the hinge structure comprises two body substrates fixed on the body and two cover plate substrates fixed on the cover plate, wherein the two body substrates are arranged at intervals and in parallel, the two cover plate substrates are positioned in intervals formed by the two body substrates, and a hinge pin is arranged at the hinge position of the body substrate and the cover plate substrate;
when the triggering structure is directly electrically connected with the spring bolt mechanism, the triggering structure is a telescopic metal conductive probe switch, the triggering structure comprises a male seat mounting block, a female seat mounting block, a male seat and a female seat, the male seat mounting block is fixed on the body, the female seat mounting block is fixed on the cover plate and rotates along with the cover plate, one end face of the male seat mounting block is attached to one end face of the female seat mounting block, meanwhile, the male seat is embedded on the male seat mounting block and is positioned on one end face attached to the female seat mounting block, the male seat can do elastic telescopic motion in a direction away from or close to the female seat mounting block, the female seat is embedded on one end face attached to the male seat mounting block, and when the cover plate and the body are opened, the male seat and the female seat are positioned at staggered positions, and when the cover plate and the body are closed, the male seat and the female seat are positioned at positions opposite to each other;
when the trigger structure is connected to the micro switch, the micro switch is electrically connected to the latch mechanism, the trigger structure is a cam mechanism, the cam mechanism is disposed in an interval formed by two cover plate substrates, the cam mechanism is fixed on one of the cover plate substrates, the cam mechanism comprises a cam, and a protruding portion of the cam is located on one side of the cover plate substrate close to the body.
2. The antitheft door closing trigger device for small space according to claim 1, wherein the trigger structure is disposed in a space formed by two cover base plates, and the female seat mounting block is fixed on one of the cover base plates.
3. The antitheft door closing triggering device for small space according to claim 2, wherein the male seat and the female seat are both conductive bars, and a spring is provided at one end of the male seat in the male seat mounting block.
4. The antitheft door closing triggering device for a small space according to claim 1, wherein a guide rod mechanism is arranged at one end, close to a hinge position, in the concave cavity of the body, the guide rod mechanism comprises a guide rod support and a guide rod, a guide rod hole is formed in the guide rod support, the penetrating direction of the guide rod hole is from one end of the hinge position of the body to one end of the lock hole, the guide rod penetrates through the guide rod hole, and one end of the guide rod abuts against the cam after penetrating through the side wall of the concave cavity of the body.
5. The antitheft door closing triggering device for a small space according to claim 4, wherein the microswitch is arranged in the concave cavity of the body and close to the guide rod mechanism, the microswitch is arranged on one side of the guide rod mechanism, which is away from the cam, the microswitch comprises a pressing part and a circuit board, the pressing part is welded on the circuit board, the circuit board is fixed on the guide rod bracket, and meanwhile, one end of the guide rod, which is away from the cam, is abutted against the pressing part.
6. The antitheft door closing trigger apparatus for small space of claim 5 wherein said circuit board is fixed to said guide bar bracket by a threaded fastener or a snap-in structure; the guide rod support is fixed on the body through a threaded fastener or a buckle structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810142982.6A CN108468473B (en) | 2018-02-11 | 2018-02-11 | Antitheft door closing triggering device for narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810142982.6A CN108468473B (en) | 2018-02-11 | 2018-02-11 | Antitheft door closing triggering device for narrow space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108468473A CN108468473A (en) | 2018-08-31 |
| CN108468473B true CN108468473B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810142982.6A Active CN108468473B (en) | 2018-02-11 | 2018-02-11 | Antitheft door closing triggering device for narrow space |
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| CN (1) | CN108468473B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576411A (en) * | 2019-10-08 | 2019-12-17 | 安徽宏实自动化装备有限公司 | Rotary type groove body automatic cover opening and closing mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0296072A (en) * | 1988-09-30 | 1990-04-06 | Aisin Seiki Co Ltd | Lid lock device |
| US5172097A (en) * | 1991-02-25 | 1992-12-15 | Arnold Bradley J | Security box for mounting against a wall and for holding keys |
| CN101660374B (en) * | 2009-09-27 | 2012-06-13 | 苏凯 | Intelligent identity control lock |
| CN102491021B (en) * | 2011-12-06 | 2013-07-31 | 航天晨光股份有限公司 | Theftproof protection cap for fuel tank truck manhole cover |
| CN203872211U (en) * | 2013-10-18 | 2014-10-08 | 张家斌 | Anti-theft device for mobile phone |
| CN204590081U (en) * | 2015-01-20 | 2015-08-26 | 衢州旭阳新材料科技有限公司 | A kind of steel fibre anti-stealing manhole cover |
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2018
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