CN103556886A - Program-controlled padlock - Google Patents

Program-controlled padlock Download PDF

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Publication number
CN103556886A
CN103556886A CN201310574482.7A CN201310574482A CN103556886A CN 103556886 A CN103556886 A CN 103556886A CN 201310574482 A CN201310574482 A CN 201310574482A CN 103556886 A CN103556886 A CN 103556886A
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China
Prior art keywords
lock
slide block
program control
knob
spring
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Granted
Application number
CN201310574482.7A
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Chinese (zh)
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CN103556886B (en
Inventor
吕茅利
梁海坤
陈永金
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Zhuhai Valwell Electric Technology Co Ltd
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Zhuhai Valwell Electric Technology Co Ltd
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Priority to CN201310574482.7A priority Critical patent/CN103556886B/en
Publication of CN103556886A publication Critical patent/CN103556886A/en
Application granted granted Critical
Publication of CN103556886B publication Critical patent/CN103556886B/en
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Abstract

The invention provides a program-controlled padlock. The program-controlled padlock is provided with a lock body, wherein a lock ring is arranged at the upper part of the lock body; the fixed end of the lock ring is arranged inside the lock body; the free end of the lock ring can be inserted into a lock hole in the upper end of the lock body; an identity tag is arranged at the lower end of the lock body; a deadbolt is arranged above the identity tag, and is arranged below the fixed end; a sliding block is mounted on the deadbolt; the fixed end is fixedly connected with the sliding block; a first spring is mounted between the lower end of the sliding block and the bottom wall of the deadbolt; a first sliding groove extending in the axial direction of the deadbolt and a locking groove extending in the circumferential direction of the deadbolt are formed in the circumferential wall of the deadbolt; the first sliding groove is communicated with the locking groove; a through hole is formed in the circumferential wall of the sliding block; a lock pin component is mounted in the sliding block; the outer end of the lock pin component penetrates the through hole and can slide into the locking groove. The program-controlled padlock is simple in structure and manufacturing technology, and low in manufacturing cost.

Description

Program control padlock
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 a plurality of equipment, the operation of a plurality of equipment has the requirement of sequencing conventionally, once operating sequence mistake will cause device damage or affect the normal operation of industrial system.For example, while stopping power transmission in power system Zhong,Ru Dui transformer station grid switching operation, must carry out according to predetermined order, otherwise will cause power equipment to burn out and security incident easily occurs.In petrochemical industry, the make-break operation of oil pipeline valve also must be carried out according to predetermined order, otherwise can cause the accidents such as leakage of oil or blast.
Operation in order to ensure equipment is to carry out according to predetermined order, conventionally on equipment, loads onto program control padlock, and program control padlock is provided with identity label, can be identified by Intelligent key.On Intelligent key, store the information of operating sequence, Intelligent key records the information of the program control padlock on equipment in each operating sequence, only in the situation that program control padlock execution sequence is correct, Intelligent key could be identified the identity label on each program control padlock, thereby guarantees that the operating sequence of a plurality of equipment is correct.
Referring to 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 is for preventing in the infiltration lock bodies 10 such as rainwater.And, the bottom of the fixed end 12 of lock ring 11 and one end butt of spring 14, 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 and be rotated by key.The upper end of lock knob 16 is fixedly connected with lateral pin 17, drives lateral pin 17 around the axis rotation of lock knob 16 during lock knob 16 rotation.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.
While unblanking, first use Intelligent key to identify identity label 15, after Intelligent key is correctly identified identity label 15, discharge locking and allow lock knob 16 to rotate.Now, the key of unblanking is rotated through identity label and drive lock knob 16, thereby drive 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 the effect of spring 14, thereby drive 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, the free end of lock ring 11 13 is buckled in lockhole, by key, drive lock knob 16 rotations, back-moving spring 18 promotes the free end of lateral pin 17 and inserts in the groove 19 of lock ring 11, finally key is taken out, and completes block action.
But existing program control padlock must be used two springs, comprise the spring 14 and the back-moving spring 18 that are positioned at lock ring 11 lower ends, the component that program control padlock is used are more.And, in program control padlock, must be provided for holding the deep hole of lateral pin 17 and back-moving spring 18, and must guarantee the smoothness of this inner walls of deep holes, to guarantee 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 a kind of simple in structure, reliable and simple program control padlock of production technology.
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 located in lock body, the free end of lock ring can be inserted in the lockhole of lock body upper end, the lower end of lock body is provided with identity label, the top of identity label is provided with lock knob, wherein, lock knob is positioned at the below of fixed end, slide block is installed on lock knob, fixed end is fixedly connected with slide block, between the lower end of slide block and the diapire of lock knob, the first spring is housed, the perisporium of lock knob is provided with along axially extended the first chute of lock knob and along the circumferential lock slots extending of lock knob, the first chute is communicated with lock slots, the perisporium of slide block is provided with through hole, and lock pin assembly is housed in slide block, the outer end of lock pin assembly also can be slipped in lock slots through through hole.
From such scheme, after Intelligent key passes through the checking of identity label, key can and drive lock knob rotation through identity label, the outer end of lock pin assembly is slipped in the first chute from lock slots, the first spring provides elastic restoring force upwards that slide block is moved upward along the first chute to slide block, lock ring moves upward with slide block, and the free end of lock ring departs from from lockhole, and lock ring can rotate freely around the axis of fixed end.
When program control padlock is closed, the free end of lock ring is aimed to lockhole and pressed lock ring downwards, slide block moves downward along the first chute, now counter-rotate key and drive lock knob reverse rotation, the outer end of lock pin is slipped in lock slots from the first chute, the free end of lock ring is also positioned at lockhole, and lock ring can not rotate freely.
Due in program control padlock without lateral pin is set, its assembly technology is simple, reliability is high, and the volume of the installing hole arranging in lock body is less.In addition, the requirement on machining accuracy of program control padlock is lower, reduces its production difficulty.
A preferred scheme is, lock pin assembly comprises lock pin and the second spring, and the second spring is connected between the inner of lock pin and the inwall of slide block.
As can be seen here, the second end that promotes lock pin by the second spring stretches out through hole and slips in lock slots, is conducive to the reset of lock pin assembly.
Further scheme is, the inner of lock pin is provided with spring eye, and a part for the second spring is arranged in spring eye.
Visible, the second spring fitting, in spring eye, is guaranteed to the reliability of the second spring fitting and work.
Further scheme is, the outer end of lock knob assembly is provided with projection, and this projection also can slip in lock slots through through hole.
As can be seen here, by projection, pass through hole and slip into lock slots, can guarantee the functional reliability between lock knob assembly and slide block, lock knob.
Further scheme is that the upper end of slide block is provided with along axially extended the second chute of slide block, is provided with the spacer pin that can slip in the second chute in lock body.
Visible, by spacer pin, limit slide block movement locus in the axial direction, can guarantee when slide block moves in the axial direction can not rotate, be conducive to improve the functional reliability of program control padlock.
Further scheme is, lock knob top is provided with gland, and gland lower end is provided with stopper slot, the upper end of lock knob and stopper slot adjacency, and stopper slot is positioned on the inwall of gland.
As can be seen here, by gland, lock knob is fixed in lock body, can avoids lock knob axially to move up and down along it.
Further scheme is, the perisporium of lock knob is provided with locating slot, and lock body is provided with positioning bead assembly, and one end of positioning bead assembly can be slipped in locating slot.
Visible, by coordinating of positioning bead assembly and locating slot, the feel in the time of can strengthening lock ring rotation, unblanks convenient with lock operation.
Accompanying drawing explanation
Fig. 1 is the structure chart of existing program control padlock.
Fig. 2 is the structure chart of the program control padlock embodiment of the present invention.
Fig. 3 is the sectional view of the program control padlock embodiment of the present invention.
Fig. 4 is the STRUCTURE DECOMPOSITION figure that the present invention program control padlock embodiment has dwindled.
Fig. 5 is that in the program control padlock embodiment of the present invention, lockset is hidden the structure chart after lock body.
Fig. 6 is the STRUCTURE DECOMPOSITION enlarged drawing of lock ring, slide block and lock pin assembly in the program control padlock embodiment of the present invention.
Fig. 7 is the STRUCTURE DECOMPOSITION enlarged drawing at lock ring, slide block and another visual angle of lock pin assembly in the program control padlock embodiment of the present invention.
Fig. 8 is the STRUCTURE DECOMPOSITION enlarged drawing of lock knob, slide block, lock pin assembly and positioning bead assembly in the program control padlock embodiment of the present invention.
Fig. 9 is the structure enlarged drawing of lock knob, slide block and lock pin assembly in the program control padlock embodiment of the present invention.
Figure 10 is the structure enlarged drawing of gland in the program control padlock embodiment of the present invention.
Figure 11 is the STRUCTURE DECOMPOSITION enlarged drawing of gland and lock knob in the program control padlock embodiment of the present invention.
Figure 12 is the cutaway view Amplified image of gland and lock knob in the program control padlock embodiment of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
The specific embodiment
Program control padlock of the present invention is applied in the equipment 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 is controlled a plurality of equipment.
Referring to Fig. 2, program control padlock has lock body 30, and the top of lock body 30 is provided with U-shaped lock ring 40, and referring to Fig. 3, Fig. 4 and Fig. 5, the two ends of lock ring 40 are respectively free end 41 and fixed end 42.In lock body 30, be provided with an installing hole 35 and lockhole 36, free end 41 can pack in lockhole 36.The fixed end 42 of lock ring 40 is arranged in installing hole 35, and installing hole 35 is provided with gland 32, and the top of gland 32 is provided with rainhat 31, prevents that the liquid such as rainwater from infiltrating in installing hole 35.
The perisporium of gland 32 is provided with a pin-and-hole 33(Figure 10 and shows), in lock body 30, be provided with a spacer pin 55, one end of spacer pin 55 is inserted in pin-and-hole 33, prevents that gland 32 is in the interior rotation of lock body 30.
Identity label 37 is equipped with in the lower end of lock body 30, and identity label 37 is fixed on the lower end of lock body by screw 38, and Intelligent key passes through after the checking of identity label 37, and key can and stretch in lock body 30 through identity label 37.
The top of identity label 37 is provided with lock knob 70, and slide block 50 is housed in lock body 70, and the fixed end 42 of lock ring 40 is fixedly connected with slide block 50.Referring to Fig. 6 and Fig. 7, the fixed end lower end of lock ring 40 has an axis hole 43, and steady pin 44 is through axis hole 43.And, slide block 50 be positioned at fixed end 42 under, slide block 50 is provided with one towards the installing hole 51 of upper shed, steady pin 44 is arranged in installing hole 51, therefore the fixed end 42 of lock ring 40 is fixedly connected with slide block 50 by steady pin 43, and the lower end of fixed end 42 is contained in installing hole 51.
The upper end of slide block 50 is provided with the dome 52 that a circle circumferentially extends along slide block 50, and dome 52 is provided with a breach, and this breach forms a chute 53, and chute 53 is positioned on the perisporium of slide block 50 and extending axially along slide block 50.In lock body 30, be provided with a spacer pin 54, one end of spacer pin 54 is inserted in chute 53.Slide block 50 is installing hole 35 is interior while axially sliding up and down along slide block 50, the movement locus of spacer pin 54 restriction chutes 53, and anti-limited slip block 50 is in the interior rotation of lock body 30.
The perisporium of slide block 50 is provided with a through hole 56 that runs through its perisporium, and lock pin assembly 60 is installed in slide block 50, lock pin assembly 60 comprises lock pin 61 and spring 64, the inner of lock pin 61 is provided with a spring eye 62, outer end is provided with projection 63, a part for spring 64 is arranged in spring eye 62, so one end of spring 64 is connected to the inner of lock pin 61, and the other end of spring 64 is connected on the inwall of slide block 50.Lock pin 61 be installed to slide block 50 interior after, the projection 63 of lock pin 61 stretches out through hole 56 under the effect of spring 64.
Referring to Fig. 8, slide block 50 is arranged on lock knob 70, and the perisporium of lock knob 70 is provided with a chute 71 and lock slots 72, and chute 71 extends axially along lock knob 70, and lock slots 72 is along the circumferential extension of lock knob 70, and chute 71 is communicated with lock slots 72.The lower end of lock knob 70 is provided with projection 73, and key can be connected with projection 73 through after identity label 37, and drives projection 73 rotations, drives thus lock knob 70 rotations.
The lower end of slide block 50 is provided with screw 57, and the screw cap 58 of screw 57 is positioned at the below of slide block 50.The below of slide block 50 is provided with spring 80, and spring 80 is also mounted in lock knob 70, the upper end of spring 80 is sleeved on outside screw cap 58, so the two ends of spring 80 are connected to respectively between the lower end of slide block 50 and the diapire of lock knob 70, and provides elastic restoring force upwards to slide block 50.
As seen from Figure 9, slide block 50 is installed to after lock knob 70, and the projection 63 of lock pin 61, through after through hole 56, can slide in lock slots 72, and the upper end of projection 63 is positioned under the top edge of lock slots 72.And because slide block 50 is not fixedly connected with lock knob 70, if lock knob 70 rotations, projection 63 can rotate with respect to lock slots 72, and slides into chute 71 from lock slots 72, now projection 63 can move up and down along chute 71.Like this, slide block 50 also moves up and down with respect to lock knob 70 thereupon.
The perisporium of lock knob 70 is provided with the locating slot 74 of a segment dress, and locating slot 74 is positioned at the top of projection 73.In lock body 30, be provided with positioning bead assembly 77, the positioning bead 79 that positioning bead assembly 77 comprises spring 78 and is positioned at spring 78 one end, and positioning bead 79 is positioned at the end of positioning bead assembly 77, and positioning bead 79 can slide in locating slot 74.
During lock knob 70 rotation, positioning bead 79 can slide in locating slot 74, and the feel when strengthening locking also facilitates the carrying out of block action.
Review Fig. 4, the top of lock knob 70 is provided with gland 32, and referring to Figure 10, the lower end of gland 32 is provided with a circle stopper slot 34, and stopper slot 34 is positioned on the inner surface of gland 32 perisporiums, and is positioned at perisporium bottom.Referring to Figure 11 and Figure 12, the upper end of lock knob 70 is provided with the dome 75 that a circle circumferentially extends along lock knob 70, dome 75 and stopper slot 34 adjacency, and the top edge of stopper slot 34 is pressed on the upper surface of dome 75, therefore gland 32 is pressed in lock knob 70 in installing hole 35, avoids lock knob 70 axially moving upward along lock knob 70.
Shown in Fig. 3 and Fig. 5 is the blocking of program control padlock, now the projection 63 of lock pin 61, through after the through hole 56 of slide block 50, is positioned at the lock slots 72 of lock knob 70, and the fixed end 42 of lock ring 40 is fixed on slide block 50, and free end 41 is arranged in lockhole 36, and lock ring 40 can not rotate freely.Now, spring 80 is connected between the lower end and lock knob 70 diapires of slide block 50, savings elastic potential energy.
While unblanking, use Intelligent key to verify identity label 37, after Intelligent key passes through the checking of identity label 37, key can and drive lock knob 70 rotations through identity label 37.Now, counterclockwise rotate lock knob 70, the projection 63 of lock pin 61 slips in chute 71 from the lock slots of lock knob 70, and slide block 50 is upward sliding under the effect of the elastic restoring force of spring 80, and because projection 63 is spacing by 71 of chutes, so slide block 50 can only be along the axially-movable of slide block 50.
Because the fixed end 42 of lock ring 40 is fixedly connected with slide block 50, so lock ring 40 moves upward with slide block 50, and the free end 41 of lock ring 40 departs from from lockhole 36, and now lock ring 40 can rotate freely around the axis of fixed end 42, and program control padlock is in unlocking condition.
During locking, the free end of lock ring 40 41 is aimed to lockhole 36, and apply downward power to lock ring 40, the free end 41 of lock ring 40 is installed in lockhole 36.Now, the fixed end 42 of lock ring 40 also moves downward thereupon, and slide block 50 also moves downward with fixed end 42, so the projection 63 of lock pin 61 is along chute 71 down slidings of lock knob 70.
When projection 63 slides down to the junction of chute 71 and lock slots 72, use key reverse rotation lock knob 70, projection 63 is the circumferential movement along lock knob 70 with respect to lock slots 72, and projection 63 slides in lock slots 72.Be applied to after the power disappearance of lock knob 70, because spring 80 provides elastic restoring force upwards to slide block 50, projection 63 can not be with respect to lock slots 72 motions, and slide block 50 is fixed on lock knob 70.
When lock knob 70 is rotated in place, the positioning bead 79 of positioning bead assembly 77 slides in the locating slot 74 of lock knob 70, and key can take off in lock body.Now, the free end of lock ring 40 is contained in lockhole 36, and lock ring 40 can not rotate, and program control padlock is in blocking.
Owing to not needing to arrange lateral pin in program control padlock, and inner surface do not need to be processed into smooth surface, and processing technology is also simple, and cost of production is low.And, by lock pin and coordinating of slide block, lock knob, realizing and unblanking and locking, the functional reliability of program control padlock is high, long service life.
Certainly, above-described embodiment is only a preferred scheme of the present invention, during practical application, can also have more variation, and for example, lock ring and slide block can be one-body molded; Or lock pin assembly does not arrange spring, be only mounted in a lock pin in slide block, and the length of lock pin is greater than the diameter of slide block, as long as the perisporium of slide block can be stretched out in the outer end of lock pin, such change also can realize object of the present invention.
The variations such as change of the concrete structure of the change of lock body profile, lock pin assembly finally it is emphasized that and the invention is not restricted to above-mentioned embodiment, as also should being 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 located in described lock body, and the free end of described lock ring can be inserted in the lockhole of described lock body upper end, 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:
Described lock knob is positioned at the below of described fixed end, on described lock knob, slide block is installed, described fixed end is fixedly connected with described slide block, between the lower end of described slide block and the diapire of described lock knob, the first spring is housed, the perisporium of described lock knob is provided with along axially extended the first chute of described lock knob and along the circumferential lock slots extending of described lock knob, and described the first chute is communicated with described lock slots;
The perisporium of described slide block is provided with through hole, and in described slide block, lock pin assembly is housed, and the outer end of described lock pin assembly also can be slipped in described lock slots through described through hole.
2. program control padlock according to claim 1, is characterized in that:
Described lock pin assembly comprises lock pin and the second spring, and described the second spring is connected between the inner of described lock pin and the inwall of described slide block.
3. program control padlock according to claim 2, is characterized in that:
The inner of described lock pin is provided with spring eye, and a part for described the second spring is arranged in described spring eye.
4. according to the program control padlock described in claims 1 to 3 any one, it is characterized in that:
The described outer end of described lock knob assembly is provided with projection, and described projection also can slip in described lock slots through described through hole.
5. according to the program control padlock described in claims 1 to 3 any one, it is characterized in that:
The upper end of described slide block is provided with along axially extended the second chute of described slide block, is provided with the spacer pin that can slip in described the second chute in described lock body.
6. according to the program control padlock described in claims 1 to 3 any one, it is characterized in that:
The fixed end of described lock ring is fixed on described slide block by steady pin.
7. according to the program control padlock described in claims 1 to 3 any one, it is characterized in that:
Described lock knob top is provided with gland, and described gland lower end is provided with stopper slot, the upper end of described lock knob and described stopper slot adjacency.
8. program control padlock according to claim 7, is characterized in that:
Described stopper slot is positioned on the inner surface of perisporium of described gland.
9. according to the program control padlock described in claims 1 to 3 any one, it is characterized in that:
The lower end of described slide block is provided with screw, and the screw cap of described screw is positioned at the below of described slide block, and the upper end of described the first spring is sleeved on outside described screw cap.
10. according to the program control padlock described in claims 1 to 3 any one, it is characterized in that:
The perisporium of described lock knob is provided with locating slot, and described lock body is provided with positioning bead assembly, and one end of described positioning bead assembly can be slipped in described locating slot.
CN201310574482.7A 2013-11-15 2013-11-15 Program control padlock Active CN103556886B (en)

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Application Number Priority Date Filing Date Title
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CN103556886B CN103556886B (en) 2015-12-16

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104763248A (en) * 2014-01-07 2015-07-08 张金春 Coaxial shutting ring latch
CN106409554A (en) * 2016-11-25 2017-02-15 长园共创电力安全技术股份有限公司 Locking lockset
CN111764763A (en) * 2020-07-27 2020-10-13 中山市泛在物联科技有限公司 Anti-collision intelligent padlock
CN115376398A (en) * 2022-08-30 2022-11-22 广东电网有限责任公司 Warning sign linkage

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US6898952B1 (en) * 2004-04-30 2005-05-31 Ez Trend Technology Co., Ltd. Electric padlock
WO2006130660A2 (en) * 2005-05-31 2006-12-07 Master Lock Company Llc Electronic security device
CN202731492U (en) * 2011-12-30 2013-02-13 长园共创电力安全技术股份有限公司 Single-electrode magnetic-control padlock
CN202767691U (en) * 2012-08-03 2013-03-06 浙江咸亨国际通用设备有限公司 Electronic mechanical padlock
CN203081105U (en) * 2012-12-14 2013-07-24 广州供电局有限公司 Digitalized padlock without transverse pin
CN203547298U (en) * 2013-11-15 2014-04-16 珠海华伟电气科技股份有限公司 Program-controlled padlock

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6898952B1 (en) * 2004-04-30 2005-05-31 Ez Trend Technology Co., Ltd. Electric padlock
WO2006130660A2 (en) * 2005-05-31 2006-12-07 Master Lock Company Llc Electronic security device
CN202731492U (en) * 2011-12-30 2013-02-13 长园共创电力安全技术股份有限公司 Single-electrode magnetic-control padlock
CN202767691U (en) * 2012-08-03 2013-03-06 浙江咸亨国际通用设备有限公司 Electronic mechanical padlock
CN203081105U (en) * 2012-12-14 2013-07-24 广州供电局有限公司 Digitalized padlock without transverse pin
CN203547298U (en) * 2013-11-15 2014-04-16 珠海华伟电气科技股份有限公司 Program-controlled padlock

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104763248A (en) * 2014-01-07 2015-07-08 张金春 Coaxial shutting ring latch
CN106409554A (en) * 2016-11-25 2017-02-15 长园共创电力安全技术股份有限公司 Locking lockset
CN106409554B (en) * 2016-11-25 2019-06-21 长园共创电力安全技术股份有限公司 A kind of lock set
CN111764763A (en) * 2020-07-27 2020-10-13 中山市泛在物联科技有限公司 Anti-collision intelligent padlock
CN115376398A (en) * 2022-08-30 2022-11-22 广东电网有限责任公司 Warning sign linkage
CN115376398B (en) * 2022-08-30 2024-04-19 广东电网有限责任公司 Warning sign linkage

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