CN103526994B - Program control padlock - Google Patents
Program control padlock Download PDFInfo
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- CN103526994B CN103526994B CN201310530311.4A CN201310530311A CN103526994B CN 103526994 B CN103526994 B CN 103526994B CN 201310530311 A CN201310530311 A CN 201310530311A CN 103526994 B CN103526994 B CN 103526994B
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Abstract
The invention provides a program control padlock which is provided with a lock body. A lock ring is arranged above the lock body, the fixed end of the lock ring is fixed in the lock body, an identity tag is arranged at the lower end of the lock body, and a deadbolt is arranged above the identity tag. A positioning sleeve is arranged in the lock body, a clamping groove is formed in the peripheral wall of the positioning sleeve, a locking sleeve assembly is installed in the positioning sleeve, a through hole is formed in the lower end of the locking sleeve assembly, and a protruding column at the upper end of the deadbolt penetrates the through hole. A locking pin is installed in the locking sleeve assembly and adjacent to the protruding column of the deadbolt, the first end of the locking pin can be inserted into the clamping groove, one spring is connected between the second end of the locking pin and the locking sleeve assembly in an abutting mode, a lock ring clamping groove is arranged at the upper end of the locking sleeve assembly, the free end of the lock ring is installed in the lock ring clamping groove, and the side wall of the lock body close to the locking sleeve assembly is provided with an opening. The program control padlock is simple in structure, convenient to assemble and low in production cost.
Description
Technical field
The present invention relates to field of lockset, especially relate to a kind of for fool proof program control padlock.
Background technology
Modern industry often needs field operation in producing, field operation often needs operating personnel manually to operate multiple equipment, the operation of multiple equipment has the requirement of sequencing usually, once operating sequence mistake, will cause device damage or affect the normal work of industrial system.Such as in power system, grid switching operation during as stopped power transmission to transformer station, must perform according to predetermined order, otherwise power equipment will be caused to burn out and easily security incident occur.In petrochemical industry, the make-break operation of oil pipeline valve also must perform according to predetermined order, otherwise can cause the accident such as leakage of oil or blast.
Operation in order to ensure equipment performs according to predetermined order, and usually on equipment, load onto program control padlock, program control padlock is provided with identity label, can by Intelligent key identification.Intelligent key stores the information of operating sequence, the information of the program control padlock in each operating sequence of Intelligent key record on equipment, only when program control padlock execution sequence is correct, Intelligent key could identify the identity label in each program control padlock, thus guarantees that the operating sequence of multiple equipment is correct.
See Fig. 1, existing program control padlock has lock body 10, and lock body 10 is provided with U-shaped lock ring 11, and one end of lock ring 11 is fixed end 12, is arranged in lock body 10, and the other end of lock ring 11 is free end 13, can be inserted in the lockhole of lock body 10.Lock body 10 is provided with a rainhat 20, and lock ring 11 is through rainhat 20, and rainhat 20 infiltrates in lock body 10 for preventing rainwater etc.Further, the bottom of the fixed end 12 of lock ring 11 abuts with one end of spring 14, and the other end of spring 14 is connected in lock body 10.
The bottom of lock body 10 is provided with identity label 15, and the top of identity label 15 is provided with lock knob 16, and the lower end of lock knob 16 is provided with projection, can be driven by key and rotate.The upper end of lock knob 16 is fixedly connected with lateral pin 17, drives lateral pin 17 to rotate around the axis of lock knob 16 when lock knob 16 rotates.The end of lateral pin 17 is provided with back-moving spring 18, and one end of back-moving spring 18 is connected to the end of lateral pin 17, and the other end is connected on the inwall of lock body 10.
The fixed end 12 of lock ring 11 is provided with a groove 19, and the free end of lateral pin 17 can insert in groove 19.In Fig. 1, program control padlock is in closure state, and the free end of lateral pin 17 is inserted in groove 19, and the free end 13 of lock ring 11 is inserted in lockhole, cannot rotate.
When unblanking, first use Intelligent key to identify identity label 15, correctly identify after identity label 15 until Intelligent key, release locking also allows lock knob 16 to rotate.Now, the key of unblanking passed identity label and drives lock knob 16 to rotate, thus driving lateral pin 17 to rotate.The free end of lateral pin 17 departs from from groove 19, the fixed end 12 of lock ring 11 moves up and down under action from the spring 14, thus driving lock ring 11 to move upward, the free end 13 of lock ring 11 also moves upward immediately and departs from lockhole, and now lock ring 11 can rotate freely around the axis of fixed end 12.
During locking, buckle in lockhole by the free end 13 of lock ring 11, drive lock knob 16 to rotate by key, the free end of lateral pin 17 promotes and inserts in the groove 19 of lock ring 11 by back-moving spring 18, is finally taken out by key, completes block action.
But existing program control padlock must use two springs, comprise the spring 14 and back-moving spring 18 that are positioned at lock ring 11 lower end, the component that program control padlock uses are more.Further, must arrange the deep hole for holding lateral pin 17 and back-moving spring 18, and must ensure the smoothness of this inner walls of deep holes in program control padlock, to ensure the smooth and easy work of lateral pin 17, the requirement on machining accuracy of program control padlock is high, and production difficulty is large.In addition, because the component of program control padlock are many, assembling is complicated, and production efficiency is low, raises the cost of production of program control padlock.
Summary of the invention
Main purpose of the present invention is to provide the program control padlock that a kind of structure is simple and easy to assembly, difficulty of processing is little.
In order to realize above-mentioned main purpose, program control padlock provided by the invention comprises lock body, the top of lock body is provided with lock ring, the fixed end of lock ring is fixed in lock body, the lower end of lock body is provided with identity label, the top of identity label is provided with lock knob, wherein, positioning sleeve is provided with in lock body, the perisporium of positioning sleeve is provided with draw-in groove, locking grip assembly is installed in positioning sleeve, the lower end of locking grip assembly is provided with through hole, the projection of lock knob upper end is through through hole, in locking grip assembly, lock pin is installed, the projection of lock pin and lock knob adjoins, the first end of lock pin can be inserted in draw-in groove, one spring is connected between the second end of lock pin and locking grip assembly, the upper end of locking grip assembly is provided with lock ring draw-in groove, the free end of lock ring is contained in lock ring draw-in groove, the sidewall of lock body near locking grip assembly place is provided with opening.
From such scheme, use key to drive lock knob to stir lock pin to move towards locking grip assembly, make lock pin extrusion spring, the first end of lock pin can be made to depart from from the draw-in groove of positioning sleeve, lock knob continues the rotation that can drive locking grip assembly when rotating, the notch of the lock ring draw-in groove that locking is overlapped is just to the opening on lock body, and the free end of lock ring skids off from lock ring draw-in groove and opening, and lock ring can rotate freely around the axis of fixed end.
Owing to only needing to arrange a spring in program control padlock, and the component used are less, and assembling is simple, convenient.And without the need to arranging the deep hole installing lateral pin in program control padlock, requirement on machining accuracy is low, and manufacturing process is simple, and cost of production is low.
A preferred scheme is, locking grip assembly comprises locking cover mold insert and is positioned at the locking cover above locking cover mold insert, and lock pin is arranged on locking cover and locking is overlapped between mold insert, and lock ring draw-in groove is arranged at the upper end of locking cover.
As can be seen here, locking grip assembly overlaps mold insert and locking by locking and overlaps two parts and form, and is arranged on by lock pin between locking cover mold insert and locking overlap, can facilitate the installation of lock pin and locking grip assembly, the difficulty that reduction is assembled.
Further scheme is, locking cover lower end is provided with mounting groove, and lock pin is arranged in mounting groove.Like this, lock pin can be fixedly mounted in mounting groove, and can to stretch out locking cover outer and insert in the draw-in groove of positioning sleeve in one end of lock pin, is conducive to the assembling that lock pin and locking are overlapped.
Further scheme is, the periphery of locking cover mold insert is provided with the contacting wall upwards extended, and one end of spring is connected in contacting wall.
As can be seen here, one end of spring is connected in contacting wall, and contacting wall is the support component of spring, guarantees that spring can promote lock pin and reset.
Further scheme is provided with spring eye in lock pin, and spring fitting is in spring eye.Like this, avoid spring relative to lock pin generation circumferential movement, guarantee that the installation of spring is reliable.
Further scheme is, the cross-sectional area of through hole is greater than the cross-sectional area of projection, and projection can rotate in through hole.
Visible, due to the cross-sectional area angle of through hole, can rotate in through hole when lock knob has just started to rotate, and promote lock pin, lock pin is departed from the draw-in groove of positioning sleeve, make locking cover be in released state.After lock knob rotates to an angle, just start to drive locking grip assembly to rotate, can coordinate by lock pin and positioning sleeve the locking realizing overlapping locking like this, avoid locking to be enclosed within lock body and rotate.
Accompanying drawing explanation
Fig. 1 is the structure chart of existing program control padlock.
Fig. 2 is the structure chart of program control padlock embodiment of the present invention.
Fig. 3 is the sectional view of program control padlock embodiment of the present invention.
Fig. 4 is the STRUCTURE DECOMPOSITION figure that in program control padlock embodiment of the present invention, lock body, lock ring and locking are overlapped.
Fig. 5 is the STRUCTURE DECOMPOSITION figure that program control padlock embodiment of the present invention reduces.
Fig. 6 is the structure chart after program control padlock embodiment of the present invention hides lock body.
Fig. 7 is the STRUCTURE DECOMPOSITION enlarged drawing of lock knob, positioning sleeve, locking grip assembly and lock pin in program control padlock embodiment of the present invention.
Fig. 8 is the STRUCTURE DECOMPOSITION enlarged drawing that in program control padlock embodiment of the present invention, mold insert is overlapped in lock knob and locking.
Fig. 9 is the schematic enlarged-scale view that in program control padlock embodiment of the present invention, mold insert is overlapped in lock knob and locking.
Figure 10 is the structure amplification decomposition figure of locking cover and spacer pin in program control padlock embodiment of the present invention.
Figure 11 be in program control padlock embodiment of the present invention locking cover mold insert and lock pin, spring STRUCTURE DECOMPOSITION enlarged drawing.
Figure 12 be in program control padlock embodiment of the present invention locking cover mold insert and lock pin, spring schematic enlarged-scale view.
Figure 13 is the schematic enlarged-scale view that in program control padlock embodiment of the present invention, mold insert, lock pin, spring are overlapped in lock knob and locking.
Below in conjunction with drawings and Examples, the invention will be further described.
Detailed description of the invention
Program control padlock of the present invention is applied in the equipment of such as power system or petrochemical industry, and the operating sequence of these equipment has strict requirement, applies the operating sequence that program control padlock of the present invention controls multiple equipment.
See Fig. 2 and Fig. 3, program control padlock has lock body 30, and the top of lock body 30 is provided with U-shaped lock ring 40, and the two ends of lock ring 40 are respectively fixed end 41 and free end 43.See Fig. 4, be provided with a lock ring installing hole 33 in lock body 30, fixed end 41 is arranged in lock ring installing hole 33.The lower end of fixed end 41 is provided with a circle stopper slot 42, a spacer pin 34 is provided with in lock body 30, one end of spacer pin 34 is inserted in stopper slot 42, thus the distance that restriction lock ring 40 moves upward along the axis of fixed end 41, also just lock ring 40 is fixed on the top of lock body 30.Certainly, lock ring 40 can rotate around the axis of fixed end 41, and fixed end 41 is fixed in lock ring installing hole 33 all the time.
Also be provided with installing hole 31 in lock body 30, locking cover 61 is arranged in installing hole 31, and the upper end of locking cover 61 is provided with lock ring draw-in groove 62, and the free end 43 of lock ring 40 can be contained in lock ring draw-in groove 62.The middle part of the self-closing lock tube 61 of lock ring draw-in groove 62 extends to the perisporium of locking cover 61, and lock ring draw-in groove 62 is greater than its groove width at the middle part of locking cover 61 in the groove width that 61 perisporium places are overlapped in locking.
The sidewall that lock body 30 overlaps 61 places near locking is provided with opening 32, and therefore opening 32 is positioned on the perisporium of installing hole 31.When locking cover 61 rotates, the opening end of lock ring draw-in groove 62 can rotate to opening 32 place, and namely the free end 43 of lock ring 40 can skid off from lock ring draw-in groove 62, and skids off opening 32, now lock ring 40 can rotate freely around the axis of fixed end 41, and program control padlock is in unlocking condition.
As shown in Figure 2, when program control padlock is in blocking, it is uncovered just not right with opening 32 that lock ring draw-in groove 62 is positioned on perisporium, and the free end 43 of lock ring 40 cannot skid off from lock ring draw-in groove 62.
See Fig. 5 and Fig. 6, the bottom of lock body 30 is provided with identity label 48, and identity label 48 is fixed on the bottom of lock body 30 by screw 49.Identity label 48 for identify by Intelligent key, Intelligent key is by after identification to identity label 48, and key can stretch in lock body 30 through identity label 48.
The top of identity label 48 is provided with lock knob 55, and see Fig. 7, the lower end of lock knob 55 is provided with a projection 56, and key passes identity label 48 and after stretching into lock body 30, projection 56 can be driven to rotate, thus drives lock knob 55 to rotate.The circumference of lock knob 55 is provided with a circle stopper slot 58, is provided with a spacer pin 36 in lock body 30, and one end of spacer pin 36 can be inserted in stopper slot 58, thus is moved up and down in lock body 30 by restriction lock knob 55.Further, the upper end of lock knob 55 is provided with a projection raised up 57, and projection 57 is in semi-cylindrical.
Be provided with positioning sleeve 50 in lock body 30, positioning sleeve 50 is the uncovered bar shape in upper end, and its perisporium is provided with a draw-in groove 51, and bottom is provided with through hole, and the projection 57 of lock knob 55 can through the through hole bottom positioning sleeve 50.Also be provided with spacer pin 52 in lock body 30, spacer pin 52 through the perisporium of positioning sleeve 50, thus avoids positioning sleeve 50 to rotate in lock body 30.
Positioning sleeve 50 is provided with locking grip assembly 60, in the present embodiment, locking grip assembly 60 overlaps mold insert 70 by locking cover 61 and the locking be positioned at below locking cover 61 and forms, locking cover mold insert 70 has a main body roughly in round pie, and the middle part of locking cover mold insert 70 is provided with a through hole 71, as shown in Figure 8, the cross section of through hole 71 is fan-shaped, and for being greater than the fan-shaped of semicircle.The projection 57 of lock knob 55 can pass through hole 71, as shown in Figure 9.
In the present embodiment, the cross-sectional area of through hole 71 is greater than the cross-sectional area of projection 57, and such projection 57 can rotate in through hole 71.When lock knob 55 has just started by key driven rotary, projection 57 has rotated in through hole 71, then lock knob 55 rotates relative to locking cover mold insert 70.When projection 57 rotates the end place to through hole 71, as lock knob 55 continues to rotate, then locking cover mold insert 70 is driven to rotate.
The main body of locking cover mold insert 70 is also provided with two through holes 73, and locking cover mold insert 70 is also provided with one piece of contacting wall 72, contacting wall 72 autonomous agent upwards extends, and is plane towards the side of through hole 73.
Locking cover 61 is positioned at the top of locking cover mold insert 70, and see Figure 10, the bottom of locking cover 61 is provided with two screwed holes 67.During assembling locking grip assembly 60, screw can be used to pass the through hole of locking cover mold insert 70 and screw in screwed hole 67, thus realize locking cover mold insert 70 and locking and overlap 61 be fixedly connected with.Like this, locking cover 61 institute's locking can overlap the rotation of mold insert 70 and rotates.
The circumference of locking cover 61 is provided with a circle stopper slot 64, and stopper slot 64 is provided with two spacer pins 65,66, and two spacer pins 65,66 are fixed on locking cover 61.Preferably, two spacer pins 65,66 are mutually vertical.Lock body 30 is also provided with a spacer pin 67, spacer pin 67 can be inserted in stopper slot 64.Like this, spacer pin 67 can limit locking cover 61 moving up and down in lock body 30.Further, when locking cover 61 rotates, limited pin 65,66 limited by spacer pin 67, can be limited the anglec of rotation of locking cover 61 by spacer pin 65,66.
The lower end of locking cover 61 is provided with mounting groove 63, and mounting groove 63 is roughly square, and lock pin 75 is arranged in mounting groove 63.Due to locking cover 61 below be locking cover mold insert 70, therefore lock pin 75 be in fact arranged on locking cover 61 and locking overlap between mold insert 70.
The first end 76 of lock pin 75 is arc surface, and first end 76 to stretch out mounting groove 63 outer and insert in the draw-in groove 51 of positioning sleeve 50.See Figure 11, be provided with a spring eye 77 in lock pin 75, spring 78 is arranged in spring eye 77.Further, spring eye 77 is just arranged the contacting wall 72 of locking cover mold insert 70.As shown in figure 12, between spring 78 the second end of being connected to lock pin 75 and contacting wall 72.
Further, the lower end of lock pin 75 is provided with a groove 79, and the soffit of groove 79 self-lock pin 75 upwards caves in, and as shown in figure 13, the projection 57 of lock knob 55 passes after the through hole 71 of mold insert 70 is overlapped in locking and is inserted in groove 79.Like this, projection 57 adjoins with lock pin 75, and pendulum lock pin 75 can be with to move.
In order to strengthen feel when unblanking, can arrange circular groove, and arrange spring top bead on the wall of the first end 76 of lock pin 75 in lock body 30, when the groove of first end 76 turns near spring top bead, spring top bead slips in groove.
When program control padlock is in blocking, as shown in Fig. 2, Fig. 3 and Fig. 6, the first end 76 of lock pin 75 is inserted in the draw-in groove 51 of locating slot 50, and the free end 43 of lock ring 40 is contained in the lock ring draw-in groove 62 of locking cover 61, and now lock ring 40 cannot rotate freely.
When unblanking, first use Intelligent key to identify identity label 48, Intelligent key, by after the identification of identity label 48, uses key through identity label 48 and inserts in lock body 30, the end of key contacts with the projection 56 of lock knob 55 and drives projection 56 to rotate, thus drives lock knob 55 to rotate.
After lock knob 55 starts rotation, band pendulum lock pin 75 is moved.Like this, the first end 76 of lock pin 75 can exit from the draw-in groove 51 of positioning sleeve 50, and namely lock pin 55 departs from the draw-in groove 51 of positioning sleeve 50, and locking grip assembly 60 is in released state.
The cross-sectional area of through hole 71 due to locking cover mold insert 70 is greater than the cross-sectional area of projection 57, and therefore lock knob 55 starts to rotate rear locking cover mold insert 70 and can not rotate, and now lock knob 55 rotates relative to locking grip assembly 60.Along with lock knob 55 further rotates, projection 57 drives locking cover mold insert 70 to rotate, thus drives locking cover 61 to rotate.When the lock ring draw-in groove 62 of locking cover 61 rotates to opening 32 joint with lock body 30, the free end 43 of lock ring 40 can pass lock ring draw-in groove 62 and opening 32, and lock ring 40 can rotate freely around the axis of fixed end 41.
During locking, installed in lock ring draw-in groove 62 by the free end 43 of lock ring 40, and use key to drive lock knob 55 to reversely rotate, lock ring draw-in groove 62 and opening 32 misplace, and the free end 43 of lock ring 40 cannot skid off opening 32.After locking cover 61 returns back to initial position, lock knob 55 continues to reversely rotate, and lock pin 75 resets under the effect of spring 78, and namely the first end 76 of lock pin 75 is inserted in the draw-in groove 51 of positioning sleeve 50, and locking cover 61 cannot rotate, and program control padlock is in blocking.
From above-mentioned scheme, program control padlock only uses a spring 78, and the component of use are less, and assembling is simple, convenient.Further, program control padlock is without the need to arranging the back-moving spring of lateral pin and lateral pin, and also do not need in program control padlock to carry out fine finishining, the difficulty of processing of program control padlock is less, and cost of production will reduce.
Certainly, above-described embodiment is only a preferred scheme of the present invention, can also have more change during practical application, and such as, locking cover and locking are overlapped between mold insert and can be fixedly connected with by rivet etc.; Or arrange contacting wall in the groove of locking cover lower end, one end of spring is connected in the contacting wall of locking cover, and such change also can realize object of the present invention.
Finally it is emphasized that and the invention is not restricted to above-mentioned embodiment, the change etc. of overlapping mold insert fixed form as the change of lock knob shape, locking cover and locking changes and also should be included in the protection domain of the claims in the present invention.
Claims (10)
1. program control padlock, comprises
Lock body, the top of described lock body is provided with lock ring, and the fixed end of described lock ring is fixed in described lock body, and the lower end of described lock body is provided with identity label, and the top of described identity label is provided with lock knob;
It is characterized in that:
Be provided with positioning sleeve in described lock body, the perisporium of described positioning sleeve is provided with draw-in groove, is provided with locking grip assembly in described positioning sleeve, and the lower end of described locking grip assembly is provided with through hole, and the projection of described lock knob upper end is through described through hole;
Be provided with lock pin in described locking grip assembly, the described projection of described lock pin and described lock knob adjoins, and the first end of described lock pin can be inserted in described draw-in groove, and a spring is connected between the second end of described lock pin and described locking grip assembly;
The upper end of described locking grip assembly is provided with lock ring draw-in groove, and the free end of described lock ring is contained in described lock ring draw-in groove, and the sidewall of described lock body near described locking grip assembly place is provided with opening.
2. program control padlock according to claim 1, is characterized in that:
Described locking grip assembly comprises locking cover mold insert and is positioned at the locking cover above described locking cover mold insert, and described lock pin is arranged on described locking cover and described locking is overlapped between mold insert, and described lock ring draw-in groove is arranged at the upper end of described locking cover.
3. program control padlock according to claim 2, is characterized in that:
The lower end of described locking cover is provided with mounting groove, and described lock pin is arranged in described mounting groove.
4. program control padlock according to claim 2, is characterized in that:
The periphery of described locking cover mold insert is provided with the contacting wall upwards extended, and one end of described spring is connected in described contacting wall.
5. program control padlock according to claim 2, is characterized in that:
Described locking cover overlaps mold insert with described locking and is fixedly connected with.
6. the program control padlock according to any one of claim 1 to 5, is characterized in that:
Be provided with spring eye in described lock pin, described spring fitting is in described spring eye.
7. the program control padlock according to any one of claim 1 to 5, is characterized in that:
The lower end of described lock pin is provided with the groove upwards caved in from the soffit of described lock pin, and the described projection of described lock knob inserts in described groove.
8. the program control padlock according to any one of claim 1 to 5, is characterized in that:
The cross-sectional area of described through hole is greater than the cross-sectional area of described projection, and described projection can rotate in described through hole.
9. the program control padlock according to any one of claim 2 to 5, is characterized in that:
The perisporium that described lock ring draw-in groove overlaps to described locking from the middle part that described locking is overlapped extends, and described lock ring draw-in groove is greater than the groove width at the middle part overlapped in described locking in the groove width at described locking cover perisporium place.
10. the program control padlock according to any one of claim 1 to 5, is characterized in that:
Described lock body is built with spacer pin, and the perisporium of described locking grip assembly is provided with a circle stopper slot, and one end of described spacer pin is inserted in described stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530311.4A CN103526994B (en) | 2013-10-30 | 2013-10-30 | Program control padlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530311.4A CN103526994B (en) | 2013-10-30 | 2013-10-30 | Program control padlock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103526994A CN103526994A (en) | 2014-01-22 |
| CN103526994B true CN103526994B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310530311.4A Active CN103526994B (en) | 2013-10-30 | 2013-10-30 | Program control padlock |
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| CN (1) | CN103526994B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763720A (en) * | 2019-01-15 | 2019-05-17 | 浙江浦江梅花锁业集团有限公司 | Novel lock bridge, the processing method of lock bridge and padlock |
| CN109914937B (en) * | 2019-03-27 | 2020-11-13 | 浙江华格供应链服务有限公司永康分公司 | U-shaped mortise lock |
| CN109914938B (en) * | 2019-03-27 | 2020-12-25 | 浙江华格供应链服务有限公司永康分公司 | U-shaped mortise lock convenient to lock |
| CN111456565B (en) * | 2020-04-14 | 2021-08-10 | 珠海优特电力科技股份有限公司 | Lock set |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460523U (en) * | 2009-04-30 | 2010-05-12 | 陈国刚 | Improved structure of lock |
| CN102628327A (en) * | 2012-03-23 | 2012-08-08 | 福建省电力有限公司南平电业局 | Intelligent lock |
| CN203594273U (en) * | 2013-10-30 | 2014-05-14 | 珠海华伟电气科技股份有限公司 | Program-control padlock |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050126233A1 (en) * | 2003-09-30 | 2005-06-16 | Chun-Te Yu | Hanging lock structure |
| US7628045B2 (en) * | 2004-11-23 | 2009-12-08 | Chun Te Yu | Dual-lock type padlock having double reminding function |
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- 2013-10-30 CN CN201310530311.4A patent/CN103526994B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460523U (en) * | 2009-04-30 | 2010-05-12 | 陈国刚 | Improved structure of lock |
| CN102628327A (en) * | 2012-03-23 | 2012-08-08 | 福建省电力有限公司南平电业局 | Intelligent lock |
| CN203594273U (en) * | 2013-10-30 | 2014-05-14 | 珠海华伟电气科技股份有限公司 | Program-control padlock |
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| CN103526994A (en) | 2014-01-22 |
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