CN103700547A - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN103700547A CN103700547A CN201310733641.3A CN201310733641A CN103700547A CN 103700547 A CN103700547 A CN 103700547A CN 201310733641 A CN201310733641 A CN 201310733641A CN 103700547 A CN103700547 A CN 103700547A
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- circuit breaker
- support
- pressed pole
- operating mechanism
- access division
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Abstract
A circuit breaker belongs to the technical field of low-voltage apparatuses. The circuit breaker comprises a base, a rotary shaft, a holder, an operating mechanism, a key device and a rocker, the rotary shaft is arranged in the base, the holder and the operating mechanism are mounted on the base, the key device is mounted on the holder, the rocker is arranged on the holder, a driving part is arranged on the rotary shaft, a retractable rod and a pressing rod are arranged on the holder, and the rocker is provided with a first cooperating part cooperating with the driving part and a second cooperating part cooperating with the retractable rod; the pressing rod is located on one side of the holder and can slide relative to the holder, one end of the pressing rod cooperates with the key device and can move along with the key device, the other end of the pressing rod cooperates with the operating mechanism in order to drive the operating mechanism to open, the retractable rod comprises a male fastening part, the pressing rod comprises a female fastening part, and the male fastening part is fastened with the female fastening part. When the moving contact and fixed contact of the circuit breaker are closed, the key device on the surface of the circuit breaker cannot lock the opening state, so that the circuit breaker can be prevented from being pulled out after the opening state is locked, consequently, potential safety hazards are eliminated, and personal safety is ensured.
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 be when power supply network breaks down electric current, this fault current of disjunction.Yet fault current is conventionally much bigger than the specified loaded current of circuit breaker, this kind of electric current of disjunction can cause circuit breaker generation melting welding, and so-called generation melting welding refers to that dynamic and static contact is subject to fault current effect, and solidify again after melting on its surface, mutually can not be separated.In such cases, if circuit breaker is implemented to sub-switching operation, operating mechanism at circuit breaker completes after separating brake action, actual not separated between its dynamic and static contact, but it is separated that user often thinks dynamic and static contact by mistake, circuit breaker is no longer charged and implement other operations, can have like this potential safety hazard, causes unnecessary risk to people's life security.
Summary of the invention
The object of the invention is to provide a kind of circuit breaker that can eliminate safe hidden trouble, guarantee to use safe architecture advances, it can be at the dynamic and static contact of circuit breaker during in "on" position, the key apparatus on circuit breaker surface cannot be locked in gate-dividing state, thereby 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 rotationally the rotating shaft on pedestal, be installed on support and operating mechanism on pedestal, be installed on the key apparatus on described support, be arranged on rotationally the fork on described support, described rotating shaft is provided with drive division, on described support, slide and be provided with expansion link, down-pressed pole, the second auxiliary section that is provided with the first auxiliary section of coordinating with described drive division and coordinates with described expansion link on described fork; Described down-pressed pole is positioned at a side of support support slip relatively, 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, and described male Access Division coordinates with described female Access Division clamping.
In a specific embodiment of the present invention, described drive division is a groove, and the first described auxiliary section is projection.
In another specific embodiment of the present invention, the second described auxiliary section is projection, 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 coordinating with described expansion link, and the first described chute is comprised of a plurality of the first spouts that coordinate up and down.
In another specific embodiment of the present invention, on described support, be also provided with the second chute coordinating with described down-pressed pole, the second described chute is comprised of two the second spouts that are oppositely arranged.
Of the present invention, also have in a specific embodiment, 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 of the present invention and then a 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 a specific embodiment, described public Access Division is projection, and described female Access Division is pit.
In more of the present invention and then a specific embodiment, described public Access Division is pit, and described female Access Division is projection.
The present invention is owing to adopting after said structure, the beneficial effect having: can be at the dynamic and static contact of circuit breaker during in "on" position, the key apparatus on circuit breaker surface cannot lock, thereby avoids circuit breaker to be misused, to eliminate safe hidden trouble, guarantee operator's personal safety.
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. minutes brake lever rods, 611. contact jaws.
Embodiment
In order to make the public can fully understand technical spirit of the present invention and beneficial effect; 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, anyly according to the present invention design, changes in the form rather than substance all and 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 rotationally the rotating shaft 2 on pedestal 1, be arranged on support 3 and operating mechanism 6 on pedestal 1, be installed on draw-gear 4 and key apparatus 5 on described support 3.Operating mechanism 6 is connected with rotating shaft 2, with drive shaft 2, rotates.Described rotating shaft 2 is for carrying the parts of moving contact, and the state of its rotation has directly reacted minute state that closes of contact system.Described operating mechanism 6 comprises minute brake lever rod 61, on minute brake lever rod 61, is fixed with contact jaw 611.By pushing contact jaw 611, can drive minute brake lever rod 61 to rotate, after dividing brake lever rod 61 to rotate, trigger action mechanism 6 realizes separating brake action, meanwhile, if minute brake lever rod 61 remains on the state that above-mentioned triggering separating brake moves, described operating mechanism 6 is locked in gate-dividing state, cannot close a floodgate.Described support 3 adopts plastic injection-moulded forming, and 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, is provided with slidably expansion link 34, down-pressed pole 32 on described support 3, and described draw-gear 4 comprises fork 43, and fork 43 rotates and is arranged on support 3.The second auxiliary section 42 that is provided with the first auxiliary section 41 of coordinating with described drive division 21 and coordinates with described expansion link 34 on described fork 43.Described down-pressed pole 32 is positioned at a side of support 3 support 3 slips relatively.One end of down-pressed pole 32 and key apparatus 5 interlocks, described interlock refers to: one end of down-pressed pole 32 contacts cooperation with the swing arm 51 of key apparatus 5, specifically refer to, when key apparatus 5 is in the lock state, drive swing arm 51 to swing and push down-pressed pole 32 and move downward, make down-pressed pole 32 in lower position.When key apparatus 5 is during in unlocked state, 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 brakes, activate described operating mechanism 6 separating brakes and specifically refer to, the other end of this down-pressed pole 32 contacts cooperation with the contact jaw 611 that divides brake lever rod 61 of operating mechanism 6.When down-pressed pole 32 is during in lower position, after the other end of down-pressed pole 32 promotes contact jaw 611 and rotates, a described minute brake lever rod 61 synchronously rotates, and drives operating mechanism 6 to carry out separating brake action, and is locked in gate-dividing state, and cannot close a floodgate.On the contrary, when down-pressed pole 32 is during in upper position, the other end of down-pressed pole 32 does not promote contact jaw 611 and rotates, and operating mechanism 6 is in can "on" position.Described expansion link 34 comprises a public Access Division 342, and described down-pressed pole 32 comprises a female Access Division 322, and described male Access Division 342 coordinates with described female Access Division 322 clampings.Described public Access Division 342 can be projection or pit, and described female Access Division 322 can be adjusted into 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, and this stage clip 321 is for providing the power of reply to down-pressed pole 32.Certainly, adopt other modes, as long as can provide down-pressed pole 32 to reply, in the protection range of the invention.Preferably, described drive division 21 is a groove, and the first described auxiliary section 41 is projection; Identical, the second described auxiliary section 42 is projection, one end of described expansion link 34 is provided with the mating groove 341 with the second described auxiliary section 42 tablings.Above-mentioned groove and protruding coordinating, make after protruding reciprocating motion, and corresponding described groove is also being followed reciprocating motion, and same, after groove reciprocating motion, projection also can followed reciprocating motion.
Described support 3 is provided with the first chute 33 coordinating with described expansion link 34, and the first described chute 33 is comprised of a plurality of the first spouts that coordinate up and down.On described support 3, be also provided with the second chute 31 coordinating with described down-pressed pole 32, the second described chute 31 is comprised of two the second spouts that are oppositely arranged.Because structure between expansion link 34 and the first chute 33 is for being slidably matched, adopt a plurality of the first spouts that coordinate up and down to form after the first chute 33, can effectively reduce the frictional force producing in slip, thereby make to drive above-mentioned slip and the actuating force that needs reduces, optimize structure.In like manner, the second described chute 31 also can arrange for identical object a plurality of the second spouts, here Ao Shu no longer.
Described draw-gear 4 comprises axis 45, fork 43, first connecting rod 47 and second connecting rod 46, described axis 45 hub settings are on support 3, described fork 43 is set in one end of axis 45 and synchronizes rotation with axis 45, for the first auxiliary section 41 coordinating with described drive division 21 and the second auxiliary section 42 coordinating for the expansion link 34 with described respectively one be formed in the two ends of described fork 43 length directions, one end of described first connecting rod 47 and one end of second connecting rod 46 are 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 settings 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 threads of mounting bracket 53, thereby has realized 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 coordinating with described lock core 52, swing arm 51 is by pivot pin 531 hub settings on mounting bracket 53, and described swing arm 51 comprises a hub setting hole coordinating with pivot pin 531 511, a swinging end 512 coordinating with down-pressed pole 32 and an external part 513 coordinating with described mating groove 521 chutes.Described mating groove 521 refers to coordinating of external part 513, and when operator rotates lock core 52, described mating groove 521 is followed rotation, and external part 513 is slided within it, finally drives swing arm 51 to swing.
Please continue to refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, narrate operating principle of the present invention: when rotating shaft 2 is during in "on" position, drive division 21 on it drives first auxiliary section 41 of fork 43 one end to be positioned at left side, as the second auxiliary section 42 of fork 43 other ends, setover to the right, by the mating groove 341 on expansion link 34, drive expansion link 34 displacement to the right in the first sliding tray 33, making male Access Division 342 on expansion link 34 realize clamping with the female Access Division 322 on down-pressed pole 32 coordinates, make down-pressed pole 32 cannot be subject to the swing arm 51 of key apparatus 5 to drive and move downward, thereby cannot hit the contact jaw 611 of minute brake lever rod 61 of operating mechanism 6.
In like manner, if rotating shaft 2 when gate-dividing state, cannot stop the swing arm 51 of key apparatus 5 to drive down-pressed pole 32 to promote the contact jaw 611 of described minute brake lever rod 61.
Claims (9)
1.
a kind of circuit breaker, it is characterized in that: comprise pedestal (1), be arranged on rotationally the rotating shaft (2) on pedestal (1), be installed on support (3) and operating mechanism (6) on pedestal (1), be installed on the key apparatus (5) on described support (3), be arranged on rotationally the fork (43) on described support (3), 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) that is provided with the first auxiliary section (41) of coordinating with described drive division (21) and coordinates with described expansion link (34) on described fork (43), described down-pressed pole (32) is positioned at a side of support (3) support (3) slip relatively, 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), and described male Access Division (342) coordinates with described female Access Division (322) clamping.
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 projection.
3.
a kind of circuit breaker according to claim 1, is characterized in that described the second auxiliary section (42) is for projection, and 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) coordinating with described expansion link (34), described the first chute (33) is comprised of a plurality of the first spouts that coordinate up and down.
5.
a kind of circuit breaker according to claim 1, it is characterized in that being also provided with the second chute (31) coordinating with described down-pressed pole (32) on described support (3), described the second chute (31) is comprised of two the second spouts that 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), conflicting in one end of described stage clip (321), the other end 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, is characterized in that described support (3) is provided with fixing hole (35), and support (3) is installed on described pedestal (1) by described fixing hole (35).
8.
a kind of circuit breaker according to claim 1, is characterized in that described public Access Division (342) is for projection, and 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 for pit, and described female Access Division (322) is projection.
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 true CN103700547A (en) | 2014-04-02 |
| CN103700547B 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 |
|---|---|
| CN103700547B (en) | 2015-09-23 |
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