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CN102931040A - Locking and unlocking mechanism used for circuit breaker - Google Patents

Locking and unlocking mechanism used for circuit breaker Download PDF

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Publication number
CN102931040A
CN102931040A CN2011102559986A CN201110255998A CN102931040A CN 102931040 A CN102931040 A CN 102931040A CN 2011102559986 A CN2011102559986 A CN 2011102559986A CN 201110255998 A CN201110255998 A CN 201110255998A CN 102931040 A CN102931040 A CN 102931040A
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China
Prior art keywords
release
push rod
locking
iron core
base
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Application number
CN2011102559986A
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Chinese (zh)
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CN102931040B (en
Inventor
付春秋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Liangxin Electrical Co Ltd
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Shanghai Liangxin Electrical Co Ltd
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Priority to CN201110255998.6A priority Critical patent/CN102931040B/en
Publication of CN102931040A publication Critical patent/CN102931040A/en
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Publication of CN102931040B publication Critical patent/CN102931040B/en
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  • Breakers (AREA)

Abstract

The invention discloses a locking and unlocking mechanism used for a circuit breaker, which comprises a base, a lock catch, a push rod, a spring, a micro switch, a flux converter iron core and a tripper iron core, wherein one end of the lock catch is provided with a locking rod, the other end of the lock catch is a tripping rod, and the middle part of the lock catch is hinged with the base; one end of the push rod is hinged with the base, an upright plate is arranged on the push rod, a limiting step is arranged on the upright plate, and the upper side and the lower side of the limiting step respectively form a first contact surface and a second contact surface; the spring is located between the base and the push rod; one end of the micro switch is in contact with the tripping rod; the flux converter iron core is connected with the push rod; and the tripper iron core is connected with the tripping rod. The locking and unlocking mechanism used for a circuit breaker has simple structure, low operating force and convenience for assembly, the back-and-forth conversion between a locked state and an unlocked state can be achieved by only swinging the lock catch back and forth during the use process, the operation is very easy, and the locking and unlocking mechanism also has the advantages of high safety and high reliability.

Description

Circuit breaker is with locking and release mechanism
Technical field
The present invention relates to circuit breaker, controller lock and the release mechanism particularly used on a kind of circuit breaker.
Background technology
Circuit breaker is when breaking down separating brake, and the rear closing operation that allows to carry out just requirement must be fixed a breakdown causes security incident in order to prevent misoperation, generally need to be provided with at the controller of circuit breaker the locking and unlocking mechanism.When circuit breaker since the fault separating brake after, the locking and unlocking mechanism can be introduced into lock-out state, and circuit breaker can not be closed a floodgate, only have after fault is got rid of, make the locking and unlocking mechanism enter released state, circuit breaker just can close a floodgate, and can effectively guarantee like this safety of circuit.
Traditional the locking and unlocking mechanism comprises base, the fixing connecting rod used of the support, the support that the transition that resets is used, the transition that resets of push rod, the reset tension spring of push rod, the locating part of the reset tension spring of support, the locating part of limit bracket and limiting rod, release, dropout support, dropout push rod, large magnetic flow convertor etc. amount to 13 parts and form, structure operating physical force very complicated and that need is larger, therefore traditional the locking and unlocking mechanism reliability is not high, and then causes the failure rate of circuit breaker higher.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention provides a kind of simple in structure, locking and release mechanism with higher-security and reliability.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of circuit breaker is with locking and release mechanism, and it comprises: base; Snap close, an end of described snap close is securing rod, and the other end is release lever, and the middle part of described snap close and described base are hinged; Push rod, one end and the described base of described push rod are hinged, described push rod is provided with a riser, described riser is provided with a limited step, form respectively the first contact-making surface and the second contact-making surface in the up and down both sides of described the above limited step of riser, described securing rod is resisted against on described the first contact-making surface, also is provided with a connection piece on the described push rod; Spring, an end of described spring is connected with described base, and the other end of described spring is connected with described push rod; Sensitive switch, described sensitive switch is fixed on the base, and described sensitive switch contacts with described release lever; Magnetic flow convertor, described magnetic flow convertor are fixed on the described base, and described magnetic flow convertor is provided with a back and forth straight-line magnetic flow convertor iron core, and described magnetic flow convertor iron core is connected with described push rod; Release, described release are provided with a back and forth straight-line release iron core, and described release iron core is connected with described release lever.
Preferably, described riser is provided with the first draw-in groove, and described magnetic flow convertor iron core is stuck in described the first draw-in groove.
Preferably, described release lever comprises left dropout section, middle dropout section and right dropout section three parts, described in the middle of dropout section be provided with the second draw-in groove, described release iron core is stuck in described the second draw-in groove, described left dropout section contacts with described sensitive switch.
Preferably, sensitive switch is provided with actuating rod, and described actuating rod acts on the described release lever.
Preferably, also be provided with a cover plate on the described base.
Technique scheme has following beneficial effect: this circuit breaker is with locking and release mechanism is simple in structure, operating physical force is little, easy to assembly, in use only snap close is swung back and forth to realize the back and forth conversion of lock-out state and released state, it is very convenient to operate, and this locking and release mechanism also have fail safe, advantage that reliability is high.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and cooperate accompanying drawing that this patent is elaborated.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is embodiment of the invention snap close three-dimensional structure diagram;
Fig. 3 is embodiment of the invention push rod three-dimensional structure diagram;
Fig. 4 is embodiment of the invention release outline drawing;
Fig. 5 is embodiment of the invention magnetic flow convertor outline drawing.
Side perspective structure chart when Fig. 6 is embodiment of the invention locking;
Rear perspective structure chart when Fig. 7 is embodiment of the invention locking;
Fig. 8 is the side perspective structure chart after the embodiment of the invention release;
Fig. 9 is the rear perspective structure chart after the embodiment of the invention release;
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, this circuit breaker comprises a base 5 with locking and release mechanism, and the upper end of base 5 is provided with a cover plate 1.Also be provided with snap close 2, sensitive switch 3, release 4, push rod 6, spring 7 and magnetic flow convertor 8 on the base 5.
As shown in Figure 2, one end of snap close 2 is securing rod 21, the other end is release lever 22, release lever 22 comprises left dropout section 23, middle dropout section 24 and right dropout section 25 3 parts, centre dropout section 24 is provided with the second draw-in groove 26, the middle part of snap close 2 is provided with a bearing pin 27, and snap close 2 is hinged on the base 5 by bearing pin 27.Sensitive switch 3 is fixed on the base 5, and sensitive switch 3 is provided with actuating rod, and the left dropout section 23 of actuating rod and release lever 22 contacts, and actuating rod can outwards eject under the reset force effect of sensitive switch 3, and actuating rod acts on can make snap close 2 rotations on the release lever 22.Release 4 is fixed on the base 5, and release is provided with a back and forth straight-line release iron core 41 (as shown in Figure 4), and release iron core 41 is connected in the second draw-in groove 26.
As shown in Figure 3, one end of push rod 6 is provided with bearing pin 61, and push rod 6 is hinged with base 5 by this bearing pin 61, and push rod 6 is provided with a riser 62, riser 62 is provided with a limited step 64, forms respectively the first contact-making surface 65 and the second contact-making surface 66 in the up and down both sides of riser 62 upper limit steps 64.Be resisted against on the first contact-making surface 65 at lock-out state securing rod 21, be resisted against on the second contact-making surface 66 at released state securing rod 21.Also be provided with a connection piece 67 on the push rod 6, the semiaxis that connector 67 can circuit breaker cooperates, and the semiaxis that promotes circuit breaker rotates and makes breaker open operation.Also be provided with the first draw-in groove 63 on the riser 62, magnetic flow convertor 8 is fixed on the base 5, and magnetic flow convertor 8 is provided with a back and forth straight-line magnetic flow convertor iron core 81 (as shown in Figure 5), magnetic flow convertor iron core 81 be stuck in the first draw-in groove 63.One end of spring 7 is fixed on the base 5, and the other end of spring 7 is connected with push rod 6.
Shown in Fig. 6,7, this circuit breaker uses locking and release mechanism when work, receive the disjunction instruction of controller when magnetic flow convertor 8, the magnetic flow convertor iron core 81 of magnetic flow convertor 8 is got drive push rod 6 and is clockwise rotated, in rotation process, push rod 6 is stirred the rotation of circuit breaker semiaxis by connector 67 and is made breaker open operation; Simultaneously, the securing rod 21 that rides on push rod 6 first contact-making surfaces 65 slips off and push rod 6 disengagings gradually, this moment, the securing rod 21 of snap close 2 was rotated down in the reset force effect of sensitive switch 3 actuating rods, withstand on the second contact-making surface 66 of push rod 6, because the restriction of limited location step 64, push rod 6 can not oppositely rotate counterclockwise, and so namely enters this mechanism and just enters lock-out state, and can not carry out breaker switching-on operation this moment.
When after getting rid of circuit breaker failure, carrying out release, can carry out release by remote de-locking, left release and three kinds of modes of right release.
Shown in Fig. 8,9, when carrying out remote de-locking, at first by long-range release 4 is switched on, the release iron core 41 of release 4 is moved downward, and release iron core 41 rotates by the release lever 22 that middle dropout section 24 drives snap closes 2, and the securing rod 21 of snap close 2 upwards rotates, securing rod 21 is separated with push rod 6, push rod 6 rotated counterclockwise under the effect of spring 7 and resetted this moment, had so namely finished releasing process, and can carry out breaker switching-on operation this moment.
When carrying out left release, with manually pinning 23 times motions of left dropout section, release lever 22 is rotated, securing rod 21 upwards rotates, and then securing rod is separated with push rod 6, push rod 6 rotates counterclockwise under the effect of spring 7 and resets like this, has so namely finished releasing process, and can carry out breaker switching-on operation this moment.Right release and left unlocking manner are basic identical, only need namely to have finished releasing process with hand by bottom right dropout section 25, make circuit breaker carry out closing operation.
This circuit breaker is with locking and release mechanism is simple in structure, operating physical force is little, easy to assembly, in use only snap close is swung back and forth to realize the back and forth conversion of lock-out state and released state, it is very convenient to operate, and this locking and release mechanism also have fail safe, advantage that reliability is high.
More than a kind of circuit breaker that the embodiment of the invention is provided be described in detail with locking and release mechanism; for one of ordinary skill in the art; thought according to the embodiment of the invention; all will change in specific embodiments and applications; in sum; this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.

Claims (5)

1. a circuit breaker is characterized in that with locking and release mechanism it comprises:
Base;
Snap close, an end of described snap close is securing rod, and the other end is release lever, and the middle part of described snap close and described base are hinged;
Push rod, one end and the described base of described push rod are hinged, described push rod is provided with a riser, described riser is provided with a limited step, form respectively the first contact-making surface and the second contact-making surface in the up and down both sides of described the above limited step of riser, described securing rod is resisted against on described the first contact-making surface, also is provided with a connection piece on the described push rod;
Spring, an end of described spring is connected with described base, and the other end of described spring is connected with described push rod;
Sensitive switch, described sensitive switch is fixed on the base, and described sensitive switch contacts with described release lever;
Magnetic flow convertor, described magnetic flow convertor are fixed on the described base, and described magnetic flow convertor is provided with a back and forth straight-line magnetic flow convertor iron core, and described magnetic flow convertor iron core is connected with described push rod;
Release, described release are provided with a back and forth straight-line release iron core, and described release iron core is connected with described release lever.
2. circuit breaker according to claim 1 is with locking and release mechanism, and it is characterized in that: described riser is provided with the first draw-in groove, and described magnetic flow convertor iron core is stuck in described the first draw-in groove.
3. circuit breaker according to claim 1 is with locking and release mechanism, it is characterized in that: described release lever comprises left dropout section, middle dropout section and right dropout section three parts, dropout section is provided with the second draw-in groove in the middle of described, described release iron core is stuck in described the second draw-in groove, and described left dropout section contacts with described sensitive switch.
4. circuit breaker according to claim 1 is with locking and release mechanism, and it is characterized in that: sensitive switch is provided with actuating rod, and described actuating rod acts on the described release lever.
5. circuit breaker according to claim 1 is characterized in that: also be provided with a cover plate on the described base with locking and release mechanism.
CN201110255998.6A 2011-08-09 2011-08-31 Locking and unlocking mechanism used for circuit breaker Active CN102931040B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110255998.6A CN102931040B (en) 2011-08-09 2011-08-31 Locking and unlocking mechanism used for circuit breaker

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201110227549 2011-08-09
CN201110227549.0 2011-08-09
CN201110255998.6A CN102931040B (en) 2011-08-09 2011-08-31 Locking and unlocking mechanism used for circuit breaker

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CN102931040A true CN102931040A (en) 2013-02-13
CN102931040B CN102931040B (en) 2015-03-25

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CN 201120324812 Expired - Lifetime CN202210497U (en) 2011-08-09 2011-08-31 Locking and unlocking mechanism for circuit breaker

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108615661A (en) * 2016-12-13 2018-10-02 上海良信电器股份有限公司 Flux converter for circuit breaker resets bent plate
CN112750644A (en) * 2019-10-31 2021-05-04 上海良信电器股份有限公司 Remote control switching mechanism of rotary switch
CN113096999A (en) * 2021-04-09 2021-07-09 浙江奔一电气有限公司 Single energy storage element's rotary switch that can cut off fast
CN118380299A (en) * 2024-06-25 2024-07-23 诚硕电气有限公司 Electromagnetic tripping module for preventing false manual closing and molded case circuit breaker

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102931040B (en) * 2011-08-09 2015-03-25 上海良信电器股份有限公司 Locking and unlocking mechanism used for circuit breaker
CN103762128B (en) * 2014-01-02 2015-12-09 浙江天正电气股份有限公司 A kind of Self-closing lock device with Long-distance Control and apply the circuit breaker of this device
CN204348653U (en) * 2014-12-01 2015-05-20 浙江正泰电器股份有限公司 Breaker lockout device
CN107833799B (en) 2017-10-26 2024-09-20 上海良信电器股份有限公司 Fixing and unlocking mechanism of plug-in circuit breaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201274272Y (en) * 2008-08-07 2009-07-15 北京人民电器厂有限公司 Resetting mechanism for circuit breaker
CN101937811A (en) * 2010-09-21 2011-01-05 上海良信电器股份有限公司 Automatic resetting mechanism of electromagnetic release
CN201788911U (en) * 2010-09-20 2011-04-06 上海森立电气有限公司 Intelligent controller resetting mechanism for breaker
CN201829432U (en) * 2010-09-30 2011-05-11 北京人民电器厂有限公司 Releasing execution mechanism of circuit breaker
CN202210497U (en) * 2011-08-09 2012-05-02 上海良信电器股份有限公司 Locking and unlocking mechanism for circuit breaker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201274272Y (en) * 2008-08-07 2009-07-15 北京人民电器厂有限公司 Resetting mechanism for circuit breaker
CN201788911U (en) * 2010-09-20 2011-04-06 上海森立电气有限公司 Intelligent controller resetting mechanism for breaker
CN101937811A (en) * 2010-09-21 2011-01-05 上海良信电器股份有限公司 Automatic resetting mechanism of electromagnetic release
CN201829432U (en) * 2010-09-30 2011-05-11 北京人民电器厂有限公司 Releasing execution mechanism of circuit breaker
CN202210497U (en) * 2011-08-09 2012-05-02 上海良信电器股份有限公司 Locking and unlocking mechanism for circuit breaker

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108615661A (en) * 2016-12-13 2018-10-02 上海良信电器股份有限公司 Flux converter for circuit breaker resets bent plate
CN108615661B (en) * 2016-12-13 2024-03-15 上海良信电器股份有限公司 Reset bending plate of magnetic flux converter of circuit breaker
CN112750644A (en) * 2019-10-31 2021-05-04 上海良信电器股份有限公司 Remote control switching mechanism of rotary switch
CN113096999A (en) * 2021-04-09 2021-07-09 浙江奔一电气有限公司 Single energy storage element's rotary switch that can cut off fast
CN118380299A (en) * 2024-06-25 2024-07-23 诚硕电气有限公司 Electromagnetic tripping module for preventing false manual closing and molded case circuit breaker
CN118380299B (en) * 2024-06-25 2024-08-23 诚硕电气有限公司 Electromagnetic tripping module for preventing false manual closing and molded case circuit breaker

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Publication number Publication date
CN202210497U (en) 2012-05-02
CN102931040B (en) 2015-03-25

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