CN101963007A - Electric opened and closed safety mechanism of barrel-type spherical door lock - Google Patents
Electric opened and closed safety mechanism of barrel-type spherical door lock Download PDFInfo
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- CN101963007A CN101963007A CN 201010276141 CN201010276141A CN101963007A CN 101963007 A CN101963007 A CN 101963007A CN 201010276141 CN201010276141 CN 201010276141 CN 201010276141 A CN201010276141 A CN 201010276141A CN 101963007 A CN101963007 A CN 101963007A
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Abstract
The invention discloses an electric opened and closed safety mechanism of a barrel-type spherical door lock, which is characterized by comprising a bracket, a micromotor, a safety button, a reset spring, a slider shaft and a slider, wherein, the bracket, the micromotor and the safety button are arranged in sequence from front to back along a straight line; the reset spring acts at the front end of the bracket; the slider shaft is supported on the bracket along the front and rear direction; the rear end of the bracket is connected with the output shaft of the micromotor through a coupler; the slider is connected relative to the bracket in a sliding manner along the front and rear directions, and is sheathed on the slider shaft, and is connected with slider shaft through a screw thread pair; an embedded part which is matched with an inserting slot on an external handling sleeve in an inserting manner is arranged on the slider in an extending manner; the slider has the following two operating positions: one is a safety operating position that the embedded part is matched with the inserting slot, and the other is a safety removing operating position that the embedded part is separated from the inserting slot. By adopting the spherical door lock of the invention, the common mechanical spherical door lock has an electron starting manner.
Description
Technical field
The present invention relates to the door lock field, be specifically related to the electric opening and closing formula insurance institution of the spherical door lock of a kind of cartridge type.
Background technology
The handle of the spherical door lock of cartridge type is sphere or almost spherical, and because of its manufacturing process is simple relatively, cost is lower, installs also very convenient, so application is very extensive.General door lock as interior door.
The spherical door lock of common cartridge type, mainly by tubular lock body, dead bolt, big slide block, be pressed on the spring on the big slide block, spherical outer handle, spherical in handle, mechanical key lock core mechanism and overlap mechanical type insurance institution and form.Described big slide block slides and is located on the tubular lock body, and the one end connects dead bolt, and the effect of compressing on the other end has spring, the elastic force of spring with big slide block to extrapolation, thereby dead bolt is stretched out; The same axis direction in an outer is arranged in outer handle of described sphere and the spherical interior handle one, and the direction of motion of its axis direction and dead bolt is perpendicular; Have an external enforcement glove pipe to stretch in the tubular lock body on the outer handle of described sphere, the periphery of external enforcement glove pipe is provided with a projection service portion that acts on big slide block; There is an interior handle sleeve pipe to stretch in the tubular lock body in the described sphere on the handle, also is provided with a projection service portion that acts on big slide block on the periphery of interior handle sleeve pipe; Described mechanical key lock core mechanism is located in the axle center of spherical outer handle, stretches out a lock core sleeve pipe on it and stretches in the tubular lock body, also is provided with a projection service portion that acts on big slide block on the periphery of lock core sleeve pipe.Described mechanical type insurance institution mainly is made up of clamp, safety button and back-moving spring, and clamp is arranged in the tubular lock body along the axis direction of inside and outside handle, and the inside handle side of one end is extended and connected safety button, acts on back-moving spring on the other end; Described external enforcement glove pipe is provided with vertically a caulking groove, and to being provided with Embedded Division by caulking groove, clamp embeds under the latched position state of caulking groove at Embedded Division on the clamp, and location hook can be hooked on the big slide block it on, with this state maintenance.
During use, when safety button is not pressed (being the arming state), rotate spherical outer handle or spherical interior handle, move and dead bolt is return open the door thereby promote big slide block by the projection service portion.And when safety button was pressed (being safety position), clamp moved to latched position laterally, Embedded Division is embedded in the caulking groove, thereby the spherical right-hand side was just held and can't have been rotated again.At this moment, to unblank to have only this method of key of inserting in the outside, when inserting key and rotating mechanical key lock core mechanism is rotated, thereby the projection service portion on it promotes big slide block and moves and dead bolt is return open the door, and in case big slide block movement, location hook portion on the clamp breaks off relations, and clamp promptly resets under the effect of back-moving spring, thus arming.
In daily life, often occur because forget or lose key and the situation that can't open door lock; Simultaneously, because mechanical key is convenient to duplicate, management is also inconvenient; Also because the size of key of mechanical key is little, mutual opening rate has brought certain hidden danger for the safety of door lock relatively than the existence of problems such as height.Therefore, the state-of-the-art technology revolution of door lock opening ways is the main trend that present door lock industry is given priority to and broken through.
In recent years, along with development of modern science and technology, Modern Electronic unlocking technique such as electronic cipher, fingerprint recognition, magnetic card key have obtained in the door lock field using widely, are characterized in: the key keeping conveniently is difficult for losing; Size of key is big, and mutual opening rate is lower; Some key (as fingerprint) duplicates difficulty or can't duplicate at all.These Modern Electronic unlocking technique use all very convenient, have also improved the safety of door lock greatly.But these Modern Electronic unlocking technique application in door lock must be that electronic lock body is as the basis with Door lock.That is to say a cover to be arranged with the executing agency of electric energy as drive energy in the Door lock, this mechanism can automatically terminate the insurance institution in the lock body after receiving unlock instruction.Therefore, the motorized of Door lock is to realize the prerequisite and the necessary condition of door lock unlocking technique electronization.
Summary of the invention
The object of the invention provides a kind of electric opening and closing formula insurance institution that is used for the spherical door lock of cartridge type, to solve the corresponding problem of electronics unlocking systems such as spherical door lock of cartridge type and electronic cipher, fingerprint recognition, magnetic card key.
For achieving the above object, the technical solution used in the present invention is: a kind of electric opening and closing formula insurance institution that is used for the spherical door lock of cartridge type comprises support, micromotor, safety button, back-moving spring, slide block axle and slide block; Described support, micromotor, safety button three arrange along a straight line successively, the described back-moving spring of effect on the front end of support, fixedly connected with shell one end of micromotor in the rear end, the shell other end of micromotor is fixedlyed connected with described safety button; Described slide block axle is supported on the support along fore-and-aft direction, and its rear end is connected through shaft coupling with the output shaft of micromotor; The relative support of described slide block is slidingly connected along fore-and-aft direction, and is placed on the slide block axle and is connected through screw thread pair with the slide block between centers; Extend on the described slide block be provided with one for the external enforcement glove pipe on caulking groove embed the Embedded Division that cooperates; Described slide block has following two operating positions: the one, and the insurance operating position that its Embedded Division matches with caulking groove, the 2nd, the arming operating position that its Embedded Division and caulking groove are separated.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described " preceding ", " back " direction be by Fig. 1 definition, before its end of establishing back-moving spring is, and after an end of establishing knob is.This insurance institution is being installed on after spheric door locks, as the state of Fig. 5, its front end is the handle side outside sphere, and the rear end is arranged in the axle center of spherical handle.
2, in the such scheme, described support is to be put together by left and right halfbody, and each corresponding slide block is provided with groove on the left halfbody of support and the inner face of right halfbody, and the groove amalgamation on left halfbody and the right halfbody constitutes the gathering sill structure to slide block.
3, in the such scheme, front side and rear side at slide block on the described slide block axle respectively are equipped with a stage clip; When slide block is in insurance during the operating position, the screw thread pair of slide block and slide block axle breaks away from engagement, but this moment the front side stage clip act on backward an end thrust be provided on the slide block, make to keep preparing engagement between screw thread pair; When slide block was in the arming operating position, the screw thread pair of slide block and slide block axle also broke away from engagement, but this moment rear side stage clip act on forward an end thrust be provided on the slide block, make to keep preparing engagement between screw thread pair.
4, in the such scheme, micromotor is sent the electronic lock system of instruction, can adopt one or several the combination in existing fingerprint recognition, electronic cipher, the magnetic card scanning electronics unlocking technique such as (IC-card, TM cards etc.).
5, in the such scheme, described support is provided with a location hook, is pressed when insuring knob, and promptly whole insurance institution is pushed forward and reaches safety position, and this location hook colludes to be hung on the big slide block this state is maintained.When and behind the big slide block movement, this location hook promptly breaks off relations mutually with big slide block.
Operating principle of the present invention is: the present invention has used the cooperation of screw thread pair to transmit the motion and the guiding that is slidingly connected, the rotatablely moving to the technology of the straight-line conversion of slide block of realization DC micromotor.During use, insurance institution of the present invention is replaced existing machinery formula insurance institution, be installed in the spherical door lock of cartridge type.Generally, the slide block in the insurance institution of the present invention is on the insurance operating position, and when safety button was pressed (being safety position), the Embedded Division on the slide block entered in the caulking groove of external enforcement glove pipe, and spherical outer handle is locked can't rotate again; In case and this moment, micromotor started after receiving unlock instruction, by the screw thread pair on the slide block axle, drive move (be Embedded Division withdraw from caulking groove) of slide block to the arming operating position, in case when slide block moves on the arming operating position, spherical outer handle promptly is unlocked, and handle outside rotary spherical outdoors can make big slide block retreat at this moment, the withdrawal of drive dead bolt, thus reach the purpose of opening lock.
The present invention is based on the spherical door lock of cartridge type, outward appearance to the spherical door lock of original standard machinery formula cartridge type, design of part, mounting means, usings method etc. have been carried out maximum reservation, only need partial interior structural member to the spherical door lock of common mechanical type carry out appropriate reconstruction (as increasing the miniature cocurrent electromotor cableway on the tubular lock body) or change (as original machine insurance mechanism being replaced by electric opening and closing formula of the present invention insurance institution), supporting more corresponding electronic lock system is (as fingerprint recognition, electronic cipher, magnetic card scanning etc.), just can make original general spherical shape door lock become an electric lock, daily management that is convenient for people to and use, the while has also been improved the safety and the reliability of spherical door lock.
Because the utilization of technique scheme, the present invention compared with prior art has following advantage:
1, in the technical solution adopted in the present invention, all material that relates to and drive technology are all very ripe, reliable, and needed component processing is simple in the structure, buying is convenient.For the electronization of the spherical door lock of standard machinery cartridge type provides a kind of low cost, high performance technical foundation.
2, adopt spherical door lock of the present invention, when keeping the original mechanical key opening ways of the spherical door lock of standard machinery formula, increased the electronics opening ways.Because the electronics opening technology is also comparative maturity all at present, operation easily, corresponding electronic key is than the also convenient management of standard machinery key, thereby improved ease of use, safety and the reliability of spherical door lock.
3, adopt spherical door lock of the present invention, the design of part of the spherical door lock of standard machinery formula has been carried out maximum utilization, thereby inherited the cheap advantage of general spherical shape door lock.Adopt the electronic lock of identical electronic opening ways to compare with other, adopt the electronic spherical door lock of cartridge type of the electric safety machinery described in the present invention, its cost is about about 1/3 of other electronic lock.
4, adopt spherical door lock of the present invention, the outward appearance and the internal construction of the spherical door lock of standard machinery formula have been carried out maximum utilization, thus the also corresponding general spherical shape door lock advantage easy for installation of having inherited.The mounting method of the mounting method of the electronic spherical door lock of cartridge type of the electric safety mechanism described in employing the present invention and the spherical door lock of standard machinery formula is identical, on-the-spot installation is convenient, fast, do not need special erecting tools, do not need the fitting operation worker is trained especially yet, install, use cost is all relatively low.
Description of drawings
Accompanying drawing 1 is the structural representation of the embodiment of the invention;
Accompanying drawing 2 is the A-A sectional view of accompanying drawing 1;
Accompanying drawing 3 is in insurance operating position schematic diagram (removing support, safety button etc.) for embodiment of the invention slide block;
Accompanying drawing 4 is in arming operating position schematic diagram (removing support, safety button etc.) for embodiment of the invention slide block;
Mounting structure schematic diagram when accompanying drawing 5 is in safety position for the present invention is applied in the spherical door lock of cartridge type;
Accompanying drawing 6 is the B-B sectional view of accompanying drawing 5;
Structural upright schematic diagram when accompanying drawing 7 is applied in for the present invention that slide block is in the arming operating position in the spherical door lock of cartridge type (remove spherical in handle, tubular lock body and spring etc.).
In the above accompanying drawing: 1, support; 1a, left halfbody; 1b, right halfbody; 2, micromotor; 3, safety button; 4, back-moving spring; 5, slide block axle; 6, slide block; 7, shaft coupling; 8, external enforcement glove pipe; 9, caulking groove; 10, Embedded Division; 11, stage clip; 12, brace; 13, tubular lock body; 14, dead bolt; 15, big slide block; 16, spring; 17, spherical outer handle; 18, spherical interior handle; 19, mechanical key lock core mechanism; 20, interior handle sleeve pipe; 21, lock core sleeve pipe; 22, location hook.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment: shown in accompanying drawing 1～7:
A kind of electric opening and closing formula insurance institution that is used for the spherical door lock of cartridge type shown in accompanying drawing 1～4, comprises support 1, micromotor 2, safety button 3, back-moving spring 4, slide block axle 5 and slide block 6; Described support 1, micromotor 2, safety button 3 threes arrange along a straight line successively, the described back-moving spring 4 of effect on the front end of support 1, fixedly connected with shell one end of micromotor 2 in the rear end, the shell other end of micromotor 2 is fixedlyed connected with described safety button 3 through brace 12.Described slide block axle 5 is supported on the support 1 along fore-and-aft direction, and its rear end is connected through shaft coupling 7 with the output shaft of micromotor 2; The relative support of described slide block 61 is slidingly connected along fore-and-aft direction, and is placed on the slide block axle 5 and is connected through screw thread pair with 5 on slide block axle; Extend on the described slide block 6 be provided with one for external enforcement glove pipe 8 on caulking groove 9 embed the Embedded Division 10 that cooperates; Described slide block 6 has following two operating positions: the one, and the insurance operating position that its Embedded Division 10 matches with caulking groove 9 (seeing accompanying drawing 3), the 2nd, the arming operating position (seeing accompanying drawing 4) that its Embedded Division 10 and caulking groove 9 are separated.
And support 1 is provided with a location hook 22.
Shown in accompanying drawing 1,2, described support 1 is to be put together by left and right halfbody 1a, 1b, each corresponding slide block 6 middle part is provided with groove on the left halfbody 1a of support and the inner face of right halfbody 1b, and the groove amalgamation on left halfbody 1a and the right halfbody 1b constitutes the gathering sill structure to slide block 6 middle parts.
Shown in accompanying drawing 1,3-4, the external thread section on the described slide block axle 5 designs shortlyer, and front side and the rear side at slide block 6 respectively is equipped with a stage clip 11 on slide block axle 5; When slide block 6 is in insurance during the operating position, see accompanying drawing 3, the screw thread pair of slide block 6 and slide block axle 5 breaks away from engagement, but compressed front side stage clip 11 acted on backward an end thrust was provided on the slide block 6 this moment, made to keep preparing engagement between screw thread pair; When slide block 6 is in the arming operating position, see shown in Figure 4, the screw thread pair of slide block 6 and slide block axle 5 also breaks away from engagement, but compressed rear side stage clip 11 acted on forward an end thrust was provided on the slide block 6 this moment, made to keep preparing engagement between screw thread pair.Above-mentioned design has guaranteed the accurate location of two operating positions of slide block 6.So how the rotational angle of micromotor 2 just must accurately not controlled, and can adopt common miniature cocurrent electromotor to get final product.During use, when micromotor 2 is just changeing, through slide block axle 5, when screw thread pair drive slide block 6 moves on the operating position, the meshing relation of screw thread pair all can be thrown off, make micromotor 2 idle running, and slide block 6 can not move again, and when micromotor 2 counter-rotatings, screw thread pair meshes at once, thereby drives slide block 6 counter motions.
Shown in accompanying drawing 5～7, insurance institution of the present invention replaces existing machinery formula insurance institution and is installed in the spherical door lock of cartridge type.The spherical door lock of cartridge type except that insurance institution of the present invention, also comprises tubular lock body 13, dead bolt 14, big slide block 15, is pressed on handle 18 and mechanical key lock core mechanism 19 in the spring 16 on the big slide block 15, spherical outer handle 17, the sphere.Described big slide block 15 slides and is located on the tubular lock body 13, and the one end connects dead bolt 14, and the effect of compressing on the other end has spring 16, the elastic force of spring 16 with big slide block 15 to extrapolation, thereby dead bolt 14 is stretched out; The same axis direction in outers is arranged in outer handle 17 of described sphere and the spherical interior handle 18 1, and the direction of motion of its axis direction and dead bolt 14 is perpendicular.There is an external enforcement glove pipe 8 to stretch in the tubular lock body 13 on the outer handle 17 of described sphere,, the periphery of external enforcement glove pipe 8 is provided with a projection service portion that acts on big slide block 15; There is an interior handle sleeve pipe 20 to stretch in the tubular lock body 13 in the described sphere on the handle 18, also is provided with a projection service portion that acts on big slide block 15 on the periphery of interior handle sleeve pipe 20; Described mechanical key lock core mechanism 19 is located in the axle center of spherical outer handle 17, stretches out a lock core sleeve pipe 21 in the mechanical key lock core mechanism 19 and stretches in the tubular lock body 13, also is provided with a projection service portion that acts on big slide block 15 on the periphery of lock core sleeve pipe 21.
Shown in accompanying drawing 1～7,
When safety button 3 is pressed (being safety position), insurance institution's integral body moves to latched position laterally, Embedded Division 10 is embedded in the caulking grooves 9, thus the spherical right-hand side hold 17 and just can't rotate again and opened the door, and while location hook 22 colludes to be hung on the big slide block 15 this state is maintained.At this moment, in case micromotor 2 receives the just startup of unlock instruction that the electronics unlocking system sends, by the screw thread pair on the slide block axle 5, drive move (be Embedded Division 10 withdraw from caulking groove 9) of slide block 6 (as shown in Figure 4) to the arming operating position, when slide block 6 moves on the arming operating position, spherical outer handle 17 promptly is unlocked, state such as accompanying drawing 7, this moment is handle 17 outside rotary spherical outdoors, big slide block 15 is retreated, unblank thereby drive dead bolt 14 withdrawals, when big slide block 15 1 retreats, location hook 22 promptly breaks off relations mutually with big slide block 15, and insurance institution's integral body promptly is reset to unlocked position under the effect of back-moving spring 4.
After unblanking simultaneously, the instruction that the electronics unlocking system assigns an auto-closing insurance for micromotor 2 again makes micromotor 2 counter-rotatings, as shown in Figure 2, drive slide block 6 and be back to the insurance operating position, so that the circulation of the use of locking a door, opening the door next time.
The application of present embodiment, make spherical door lock become a kind of electric lock, keep spherical door lock with low cost, be easy to install, in the convenient advantage of using, can realize the supporting of electronics unlocking systems such as spherical door lock and electronic cipher, fingerprint recognition, magnetic card key, make spherical door lock more convenient to use.Utilize electronics opening technology size of key big simultaneously, the advantage that key is easy to manage has improved the safety and the reliability of spherical door lock.In addition, kept the mechanical key opening ways of spherical door lock, so that under the malfunctioning fully situation of electronics unlocking technique, carry out emergent unlocking.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. an electric opening and closing formula insurance institution that is used for the spherical door lock of cartridge type is characterized in that: comprise support (1), micromotor (2), safety button (3), back-moving spring (4), slide block axle (5) and slide block (6); Described support (1), micromotor (2), safety button (3) three arrange along a straight line successively, effect described back-moving spring (4) on the front end of support (1), fixedly connected with shell one end of micromotor (2) in the rear end, the shell other end of micromotor (2) is fixedlyed connected with described safety button (3); Described slide block axle (5) is supported on the support (1) along fore-and-aft direction, and its rear end is connected through shaft coupling (7) with the output shaft of micromotor (2); Described slide block (6) relatively support (1) is slidingly connected along fore-and-aft direction, and be placed in slide block axle (5) go up with slide block axle (5) between be connected through screw thread pair; Described slide block (6) go up to extend be provided with one for external enforcement glove pipe (8) on caulking groove (9) embed the Embedded Division (10) that cooperates; Described slide block (6) has following two operating positions: the one, and the insurance operating position that its Embedded Division (10) matches with caulking groove (9), the 2nd, the arming operating position that its Embedded Division (10) and caulking groove (9) are separated.
2. according to the described electric opening and closing formula insurance institution that is used for the spherical door lock of cartridge type of claim 1, it is characterized in that: described support (1) is to be put together by left and right halfbody (1a, 1b), each corresponding slide block (6) is provided with groove on the left halfbody (1a) of support and the inner face of right halfbody (1b), and the groove amalgamation on left halfbody (1a) and the right halfbody (1b) constitutes the gathering sill structure to slide block (6).
3. according to the described electric opening and closing formula insurance institution that is used for the spherical door lock of cartridge type of claim 1, it is characterized in that: front side and rear side that described slide block axle (5) is gone up at slide block (6) respectively are equipped with a stage clip (11); When slide block (6) is in insurance during the operating position, the screw thread pair of slide block (6) and slide block axle (5) breaks away from engagement, but this moment the front side stage clip (11) act on backward an end thrust be provided on the slide block (6), make to keep the preparation engagement between screw thread pair; When slide block (6) is in the arming operating position, the screw thread pair of slide block (6) and slide block axle (5) also breaks away from engagement, but the stage clip (11) of rear side acted on forward an end thrust was provided on the slide block (6) this moment, made to keep preparing engagement between screw thread pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010276141 CN101963007A (en) | 2010-09-09 | 2010-09-09 | Electric opened and closed safety mechanism of barrel-type spherical door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010276141 CN101963007A (en) | 2010-09-09 | 2010-09-09 | Electric opened and closed safety mechanism of barrel-type spherical door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101963007A true CN101963007A (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010276141 Pending CN101963007A (en) | 2010-09-09 | 2010-09-09 | Electric opened and closed safety mechanism of barrel-type spherical door lock |
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| Country | Link |
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| CN (1) | CN101963007A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325119A (en) * | 2018-04-26 | 2018-07-27 | 广东电网有限责任公司 | Safety belt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2480490Y (en) * | 2001-04-20 | 2002-03-06 | 中山市皇鼎五金有限公司 | Door lock |
| CN2505560Y (en) * | 2001-08-27 | 2002-08-14 | 潘卫东 | Door lock |
| EP1522659A2 (en) * | 2003-10-10 | 2005-04-13 | CISA S.p.A. | Electric lock with multiple-function spring |
| CN201116407Y (en) * | 2007-07-30 | 2008-09-17 | 方志雄 | Cylinder ball lock outer safety device |
| CN201763072U (en) * | 2010-09-09 | 2011-03-16 | 苏州孔雀信天游电子有限公司 | Electric on-off insurance mechanism for cartridge type spherical door lock |
-
2010
- 2010-09-09 CN CN 201010276141 patent/CN101963007A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2480490Y (en) * | 2001-04-20 | 2002-03-06 | 中山市皇鼎五金有限公司 | Door lock |
| CN2505560Y (en) * | 2001-08-27 | 2002-08-14 | 潘卫东 | Door lock |
| EP1522659A2 (en) * | 2003-10-10 | 2005-04-13 | CISA S.p.A. | Electric lock with multiple-function spring |
| CN201116407Y (en) * | 2007-07-30 | 2008-09-17 | 方志雄 | Cylinder ball lock outer safety device |
| CN201763072U (en) * | 2010-09-09 | 2011-03-16 | 苏州孔雀信天游电子有限公司 | Electric on-off insurance mechanism for cartridge type spherical door lock |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325119A (en) * | 2018-04-26 | 2018-07-27 | 广东电网有限责任公司 | Safety belt |
| CN108325119B (en) * | 2018-04-26 | 2023-07-11 | 广东电网有限责任公司 | Safety belt |
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Application publication date: 20110202 |