CN103700547B - A kind of circuit breaker - Google Patents
A kind of circuit breaker Download PDFInfo
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- CN103700547B CN103700547B CN201310733641.3A CN201310733641A CN103700547B CN 103700547 B CN103700547 B CN 103700547B CN 201310733641 A CN201310733641 A CN 201310733641A CN 103700547 B CN103700547 B CN 103700547B
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- circuit breaker
- support
- pressed pole
- access division
- expansion link
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Abstract
A kind of circuit breaker, belongs to low voltage electrical apparatus technology field.Comprise pedestal, be arranged on the rotating shaft on pedestal, be installed on the support on pedestal and operating mechanism, be installed on the key apparatus on support, be located at the fork on support, drive division is established in rotating shaft, support is established expansion link, down-pressed pole, fork is provided with the first auxiliary section coordinated with drive division and the second auxiliary section coordinated with expansion link; Down-pressed pole is positioned at the side of support and can slides by opposite brackets, one end of down-pressed pole coordinates with key apparatus, and link with key apparatus, the other end of down-pressed pole coordinates with operating mechanism so that pneumatic operating mechanism separating brake, expansion link comprises a public Access Division, down-pressed pole comprises a female Access Division, male Access Division and female Access Division snap-fit engagement.Can when the dynamic and static contact of circuit breaker be in "on" position, the key apparatus on circuit breaker surface cannot lock gate-dividing state, thus avoids circuit breaker to be drawn out after locking gate-dividing state, to eliminate safe hidden trouble, guarantees personal safety.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology field, be specifically related to a kind of circuit breaker.
Background technology
Circuit breaker is a kind of emergency circuit protective device, and it need when power supply network breaks down electric current, this fault current of disjunction.But fault current is usually much bigger than the specified loaded current of circuit breaker, disjunction this kind of electric current can cause circuit breaker generation melting welding, and so-called generation melting welding refers to that dynamic and static contact is by fault current effect, and its surface is solidified again after melting, and mutually can not be separated.In such cases, if implement sub-switching operation to circuit breaker, after the operating mechanism of circuit breaker completes separating brake action, actual not separation between its dynamic and static contact, but user often thinks that dynamic and static contact is separated by mistake, circuit breaker is no longer charged and implement other operations, can there is potential safety hazard like this, cause unnecessary risk to the life security of people.
Summary of the invention
The circuit breaker of the architecture advances the object of the invention is to provide a kind of and can eliminate safe hidden trouble, guaranteed use safety, it can when the dynamic and static contact of circuit breaker be in "on" position, the key apparatus on circuit breaker surface cannot be locked in gate-dividing state, thus avoids circuit breaker mis-operation.
The object of the invention is to reach like this, a kind of circuit breaker, it is characterized in that: comprise pedestal, be arranged on the rotating shaft on pedestal rotationally, be installed on the support on pedestal and operating mechanism, be installed on the key apparatus on described support, be arranged on the fork on described support rotationally, described rotating shaft is provided with drive division, described support slides and is provided with expansion link, down-pressed pole, described fork is provided with the first auxiliary section coordinated with described drive division and the second auxiliary section coordinated with described expansion link; Described down-pressed pole is positioned at the side of support and can slides by opposite brackets, one end of down-pressed pole coordinates with key apparatus, and link with key apparatus, the other end of this down-pressed pole coordinates with operating mechanism, to activate described operating mechanism separating brake, described expansion link comprises a public Access Division, described down-pressed pole comprises a female Access Division, described male Access Division and described female Access Division snap-fit engagement.
In a specific embodiment of the present invention, described drive division is a groove, and the first described auxiliary section is protruding.
In another specific embodiment of the present invention, the second described auxiliary section is protruding, and one end of described expansion link is provided with the mating groove with the second described auxiliary section tabling.
In another specific embodiment of the present invention, described support is provided with the first chute coordinated with described expansion link, and the first described chute is made up of multiple the first spout coordinated up and down.
In another specific embodiment of the present invention, described support is also provided with the second chute coordinated with described down-pressed pole, the second described chute is made up of the second spout that two are oppositely arranged.
Also have in a specific embodiment of the present invention, described down-pressed pole comprises a stage clip, and one end of described stage clip is conflicted on down-pressed pole, the other end of stage clip is conflicted on described support.
In an of the present invention and then specific embodiment, described support is provided with fixing hole, and support is installed on described pedestal by described fixing hole.
In more of the present invention and then specific embodiment, described public Access Division is protruding, and described female Access Division is pit.
In an of the present invention and then specific embodiment, described public Access Division is pit, and described female Access Division is protruding.
The present invention is due to after employing said structure, the beneficial effect had: can when the dynamic and static contact of circuit breaker is in "on" position, the key apparatus on circuit breaker surface cannot lock, thus avoids circuit breaker to be misused, to eliminate safe hidden trouble, guarantee the personal safety of operator.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is the partial structurtes schematic diagram of Fig. 1 of the present invention.
Fig. 3 is the structural representation of support of the present invention.
Fig. 4 is the stereochemical structure exploded view of draw-gear of the present invention.
Fig. 5 is that down-pressed pole of the present invention coordinates schematic diagram with operating mechanism.
Fig. 6 is key apparatus STRUCTURE DECOMPOSITION figure of the present invention.
In figure: 1. pedestal; 2. rotating shaft, 21. drive divisions; 3. support, 31. second chutes, 32. down-pressed poles, 321. stage clips, 322. female Access Divisions, 33. first chutes, 34. expansion links, 341. mating grooves, 342. male Access Divisions, 35. fixing holes; 4. draw-gear, 41. first auxiliary sections, 42. second auxiliary sections, 43. forks, 44. travel(l)ing rests, 441. installing holes, 45. axis, 46. second connecting rods, 47. first connecting rods, 48. pivot pins; 5. key apparatus, 51. swing arms, 511. hub setting holes, 512. swinging ends, 513. external parts, 52. lock cores, 521. mating grooves, 53. mounting brackets, 531. pivot pins, 532. fixing holes, 533. installing holes; 6. operating mechanism, 61. points of brake lever rods, 611. contact jaws.
Embodiment
Technical spirit of the present invention and beneficial effect can be fully understood in order to make the public; applicant will describe in detail the specific embodiment of the present invention below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, any changing in the form rather than substance according to the present invention's design all should be considered as protection scope of the present invention.
Refer to Fig. 1 to Fig. 6, the present invention relates to a kind of circuit breaker, comprise pedestal 1, be arranged on the rotating shaft 2 on pedestal 1 rotationally, be arranged on the support 3 on pedestal 1 and operating mechanism 6, be installed on the draw-gear 4 on described support 3 and key apparatus 5.Operating mechanism 6 is connected with rotating shaft 2, rotates with drive shaft 2.Described rotating shaft 2 is for carrying the parts of moving contact, and its state of rotating directly has reacted the conjunction point state of contact system.Described operating mechanism 6 comprises point brake lever rod 61, and point brake lever rod 61 is fixed with contact jaw 611.Point brake lever rod 61 can be driven to rotate by pushing contact end 611, divide brake lever rod 61 to rotate rear trigger mechanism 6 and realize separating brake action, meanwhile, if point brake lever rod 61 remains on the state of above-mentioned triggering separating brake action, then described operating mechanism 6 is locked in gate-dividing state, cannot close a floodgate.Described support 3 adopts plastics injection molded, which is provided with fixing hole 35, and support 3 is installed on pedestal 1 by described fixing hole 35.Described rotating shaft 2 is provided with drive division 21, described support 3 is provided with slidably expansion link 34, down-pressed pole 32, and described draw-gear 4 comprises fork 43, and fork 43 rotates and is arranged on support 3.Described fork 43 is provided with the first auxiliary section 41 coordinated with described drive division 21 and the second auxiliary section 42 coordinated with described expansion link 34.Described down-pressed pole 32 is positioned at the side of support 3 and can slides by opposite brackets 3.One end and the key apparatus 5 of down-pressed pole 32 link, described interlock refers to: one end of down-pressed pole 32 contacts with the swing arm 51 of key apparatus 5 and coordinates, specifically refer to, when key apparatus 5 is in the lock state, drive swing arm 51 to swing and push down-pressed pole 32 to move downward, make down-pressed pole 32 be in lower position.When key apparatus 5 is in unlocked state, then do not drive swing arm 51 to swing, and then do not promote down-pressed pole 32 and move downward, described down-pressed pole 32 is in upper position.The other end of this down-pressed pole 32 coordinates with operating mechanism 6, to activate described operating mechanism 6 separating brake, operating mechanism 6 separating brake described in actuating specifically refers to, the other end of this down-pressed pole 32 contacts with the contact jaw 611 of point brake lever rod 61 of operating mechanism 6 and coordinates.When down-pressed pole 32 is in lower position, after other end promotion contact jaw 611 rotation of down-pressed pole 32, described point brake lever rod 61 synchronous axial system, and drive operating mechanism 6 to carry out separating brake action, and be locked in gate-dividing state, and cannot close a floodgate.On the contrary, when down-pressed pole 32 is in upper position, the other end of down-pressed pole 32 does not promote contact jaw 611 and rotates, be then in can "on" position for operating mechanism 6.Described expansion link 34 comprises a public Access Division 342, and described down-pressed pole 32 comprises a female Access Division 322, described male Access Division 342 and described female Access Division 322 snap-fit engagement.Described public Access Division 342 can be protruding or pit, and described female Access Division 322 can be adjusted to pit or projection accordingly.Described down-pressed pole 32 comprises a stage clip 321, and one end of described stage clip 321 is conflicted on down-pressed pole 32, the other end of stage clip 321 is conflicted on described support 3, the power of this stage clip 321 for providing reply to down-pressed pole 32.Certainly, adopt other modes, as long as down-pressed pole 32 can be provided to reply, namely in the protection range of the invention.Preferably, described drive division 21 is a groove, and the first described auxiliary section 41 is protruding; Identical, the second described auxiliary section 42 is protruding, and one end of described expansion link 34 is provided with the mating groove 341 with the second described auxiliary section 42 tabling.Above-mentioned groove coordinates with protruding, makes when after protruding reciprocating motion, and corresponding described groove also followed by reciprocating motion, and same, when after groove reciprocating motion, projection also can followed by reciprocating motion.
Described support 3 is provided with the first chute 33 coordinated with described expansion link 34, and the first described chute 33 is made up of multiple the first spout coordinated up and down.Described support 3 is also provided with the second chute 31 coordinated with described down-pressed pole 32, the second described chute 31 is made up of the second spout that two are oppositely arranged.Because structure between expansion link 34 and the first chute 33 is for being slidably matched, after adopting multiple the first spout coordinated up and down to form the first chute 33, can effectively reduce the frictional force produced in slip, thus the actuating force making to drive above-mentioned slip and need reduces, and optimizes structure.In like manner, the second described chute 31 also can arrange multiple second spout for identical object, here no longer Ao Shu.
Described draw-gear 4 comprises axis 45, fork 43, first connecting rod 47 and second connecting rod 46, described axis 45 hub setting is on support 3, described fork 43 be set in axis 45 one end and with axis 45 synchronous axial system, the two ends of described fork 43 length direction are integrally formed in respectively for the first auxiliary section 41 of coordinating with described drive division 21 and the second auxiliary section 42 for coordinating with described expansion link 34, one end of described first connecting rod 47 and one end of second connecting rod 46 hinged, the other end and the axis 45 of described first connecting rod 47 are hinged, described second connecting rod 46 passes through pivot pin 48 hub setting on described support 3.Described draw-gear 4 also comprises a travel(l)ing rest 44, and this travel(l)ing rest 44 is arranged on described support 3, which is provided with installing hole 441, and described installing hole 441 is for installing described travel(l)ing rest 44.
Described key apparatus 5 comprises mounting bracket 53, and mounting bracket 53 is arranged on described support 3, and particularly, screw is connected on support 3 through fixing hole 532 rear thread of mounting bracket 53, thus achieves the fixing of mounting bracket 53 and support 3.Described mounting bracket 53 is provided with installing hole 533, and installing hole 533 is for installing lock core 52, and lock core 52 is provided with mating groove 521.Described mounting bracket 53 is also provided with the swing arm 51 coordinated with described lock core 52, swing arm 51 is by pivot pin 531 hub setting on mounting bracket 53, and described swing arm 51 comprises the swinging end 512 and an external part 513 coordinated with described mating groove 521 chute that a hub setting hole coordinated with pivot pin 531 511, coordinates with down-pressed pole 32.Described mating groove 521 referred to coordinating of external part 513, and when operator rotates lock core 52, described mating groove 521 follows rotation, and external part 513 is within it slided, and resulting belt movable pendulum lever 51 swings.
Please continue to refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, describe operating principle of the present invention: when rotating shaft 2 is in "on" position, drive division 21 on it drives first auxiliary section 41 of fork 43 one end to be positioned at left side, the second auxiliary section 42 then as fork 43 other end is biased to the right, expansion link 34 displacement to the right in the first sliding tray 33 is driven by the mating groove 341 on expansion link 34, the male Access Division 342 on expansion link 34 is made to realize snap-fit engagement with the female Access Division 322 on down-pressed pole 32, down-pressed pole 32 is made to drive by the swing arm 51 of key apparatus 5 and to move downward, thus the contact jaw 611 of point brake lever rod 61 of operating mechanism 6 cannot be hit.
In like manner, if when rotating shaft 2 is in gate-dividing state, then the swing arm 51 of key apparatus 5 cannot be stoped to drive down-pressed pole 32 to promote the contact jaw 611 of described point brake lever rod 61.
Claims (9)
1.
a kind of circuit breaker, it is characterized in that: comprise pedestal (1), be arranged on the rotating shaft (2) on pedestal (1) rotationally, be installed on the support (3) on pedestal (1) and operating mechanism (6), be installed on the key apparatus (5) on described support (3), be arranged on the fork (43) on described support (3) rotationally, described rotating shaft (2) is provided with drive division (21), the upper slip of described support (3) is provided with expansion link (34), down-pressed pole (32), the second auxiliary section (42) described fork (43) being provided with the first auxiliary section (41) coordinated with described drive division (21) and coordinating with described expansion link (34), described down-pressed pole (32) is positioned at the side of support (3) and can slides by opposite brackets (3), one end of down-pressed pole (32) coordinates with key apparatus (5), and link with key apparatus (5), the other end of this down-pressed pole (32) coordinates with operating mechanism (6), to activate described operating mechanism (6) separating brake, described expansion link (34) comprises a public Access Division (342), described down-pressed pole (32) comprises a female Access Division (322), described male Access Division (342) and described female Access Division (322) snap-fit engagement.
2.
a kind of circuit breaker according to claim 1, is characterized in that described drive division (21) is a groove, and described the first auxiliary section (41) is protruding.
3.
a kind of circuit breaker according to claim 1, it is characterized in that described the second auxiliary section (42) is for protruding, one end of described expansion link (34) is provided with the mating groove (341) with described the second auxiliary section (42) tabling.
4.
a kind of circuit breaker according to claim 1, it is characterized in that described support (3) is provided with the first chute (33) coordinated with described expansion link (34), described the first chute (33) is made up of multiple the first spout coordinated up and down.
5.
a kind of circuit breaker according to claim 1, it is characterized in that described support (3) being also provided with the second chute (31) coordinated with described down-pressed pole (32), described the second chute (31) is made up of the second spout that two are oppositely arranged.
6.
a kind of circuit breaker according to claim 1, it is characterized in that described down-pressed pole (32) comprises a stage clip (321), one end conflict of described stage clip (321) other end that is upper at down-pressed pole (32), stage clip (321) is conflicted on described support (3).
7.
a kind of circuit breaker according to claim 1, it is characterized in that described support (3) is provided with fixing hole (35), support (3) is installed on described pedestal (1) by described fixing hole (35).
8.
a kind of circuit breaker according to claim 1, it is characterized in that described public Access Division (342) is for protruding, described female Access Division (322) is pit.
9.
a kind of circuit breaker according to claim 1, is characterized in that described public Access Division (342) is pit, and described female Access Division (322) is protruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733641.3A CN103700547B (en) | 2013-12-27 | 2013-12-27 | A kind of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733641.3A CN103700547B (en) | 2013-12-27 | 2013-12-27 | A kind of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103700547A CN103700547A (en) | 2014-04-02 |
| CN103700547B true CN103700547B (en) | 2015-09-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310733641.3A Active CN103700547B (en) | 2013-12-27 | 2013-12-27 | A kind of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103700547B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0325501A1 (en) * | 1988-01-20 | 1989-07-26 | Hager Electro S.A. | Automatic switches, in particular differential switches and circuit breakers |
| CN101211699A (en) * | 2006-12-29 | 2008-07-02 | Ls产电株式会社 | Key lock device for circuit breaker |
| CN102568953A (en) * | 2010-12-29 | 2012-07-11 | 通用电气公司 | Locking device for use with a circuit breaker and method of assembly |
| CN203659767U (en) * | 2013-12-27 | 2014-06-18 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker |
-
2013
- 2013-12-27 CN CN201310733641.3A patent/CN103700547B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0325501A1 (en) * | 1988-01-20 | 1989-07-26 | Hager Electro S.A. | Automatic switches, in particular differential switches and circuit breakers |
| CN101211699A (en) * | 2006-12-29 | 2008-07-02 | Ls产电株式会社 | Key lock device for circuit breaker |
| CN102568953A (en) * | 2010-12-29 | 2012-07-11 | 通用电气公司 | Locking device for use with a circuit breaker and method of assembly |
| CN203659767U (en) * | 2013-12-27 | 2014-06-18 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103700547A (en) | 2014-04-02 |
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