CN200953291Y - Interlocking device for draw type plastic case circuit breaker - Google Patents
Interlocking device for draw type plastic case circuit breaker Download PDFInfo
- Publication number
- CN200953291Y CN200953291Y CN 200620045717 CN200620045717U CN200953291Y CN 200953291 Y CN200953291 Y CN 200953291Y CN 200620045717 CN200620045717 CN 200620045717 CN 200620045717 U CN200620045717 U CN 200620045717U CN 200953291 Y CN200953291 Y CN 200953291Y
- Authority
- CN
- China
- Prior art keywords
- push rod
- rocking arm
- circuit breaker
- pin
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a drawer type interlocking apparatus for breaker of plastic shell, which comprises a cam mechanism (20) and is characterized in that: the interlocking apparatus also comprises a handspike (31), a connecting rod (35), a pin (34), a base (32), a spring (33) and a cover (14). Wherein, the handspike and the connecting rod are rotated respectively around a columnar shaft on the base and are connected with each other through the pin with one end; the handspike and the pin are coupled with each other at a kidney hole (38) and a heave (37) are positioned at the place where the handspike is near to the kidney hole; the spring is propped up to the base with one of its ends and is peaked to the heave on the handspike for locating with its another end and a side surface mechanism shall form a integration by closing the cover; the side surface mechanism is positioned at the side of a breaker contacting module (2) and its handspike's another end can impact on a tripping lever (11); a mandril (24) of the cam mechanism is corresponded to one end of the connecting rod. The utility model, with simple structure, convenient installation, reliable protection, overcomes the defects of vile structure and incomplete function of the existing breaker's mechanical interlocking apparatus.
Description
(1) technical field
The utility model relates to a kind of mechanical interlocks of drawer type plastic casing circuit breaker.
(2) background technology
Withdrawable circuit breaker can make circuit breaker separate with socket or connects in the mode of plug, to using and maintenance brings convenience.From operator's security consideration, relevant rules do not allow to extract or insert operation under the situation of breaker electrifying.Common way is will insert maybe will extract socket the time when circuit breaker, guarantee that circuit breaker is in off-state.For reaching this purpose, must introduce an interlock.But there are following problems in the interlock of drawer type plastic casing circuit breaker use at present: at first, most moulded case circuit breakers only possess electrical interlock, do not have the mechanical interlocking function; Secondly, only exhausted small part mechanical interlocks structure is simple and crude, though can play a protective role, reliability is relatively poor, has potential safety hazard.
The existing mechanical interlock for example comprises a push rod, stretches out from the bottom of circuit breaker, acts on the release lever of mechanism, and when push rod was in salient position, the mechanism that promotes circuit breaker was in trip status; After circuit breaker inserted socket and puts in place, socket bottom depression bar can close a floodgate circuit breaker.Though this mechanism can guarantee circuit breaker and insert under the situation of cutting off the electricity supply and extract, shortcoming is that circuit breaker can't detect when not inserting socket.
The existing mechanical interlock, for example have a cam mechanism, as patent CN93104634.3 " draw-out molded case circuit breaker ", it comprises a rocking arm, because its position difference on cam, the mechanism that promotes circuit breaker by a push rod is in trip status; The shortcoming of this mechanism is because cam mechanism is longer to the tripping mechanism of circuit breaker distance, and push rod is easy deviation position or fracture in the course of the work.
(3) summary of the invention
The purpose of this utility model is to provide a kind of interlock of drawer type plastic casing circuit breaker, and this interlock comprises cam mechanism and side mechanism, and it is simple in structure, and is easy for installation, and protection is reliable.
The utility model is achieved in that a kind of interlock of drawer type plastic casing circuit breaker, comprise cam mechanism, it is characterized in that: also comprise side mechanism, side mechanism comprises push rod, connecting rod, pin, pedestal, spring and lid, push rod, the connecting rod cylinder axis on pedestal respectively rotate, push rod one end and connecting rod are by cottered joint, push rod and cottered joint place are a mounting hole, push rod has a projection near the mounting hole place, spring one end is against on the pedestal, the other end withstands on location, push rod upper process place, and the lid that closes makes side mechanism become as a whole; Side mechanism is contained in circuit breaker contact modules side, and the push rod other end of side mechanism can act on the dropout lever; Push rod respective link one end of cam mechanism.
Described cam mechanism comprises support, push rod, torsionspring, rocking arm, big round pin, little round pin, semicircle pin, ring washer, cover, support is the sheet metal component at a right angle, have two holes on wide, have on the leptoprosopy and be used to fasten hole and square hole of wearing push rod of deciding screw; The outer marginal pore that support is wide cooperates with the semicircle pin makes semicircle pin riveting jail on support; Rocking arm is a gore; there is the big column projection at rocking arm gore one summit place and has macropore; there is the small column projection at place, a summit; another place, summit has aperture; big round pin passes interior marginal pore on wide of rocking arm macropore and the support and cooperates and make big round pin riveting jail on support, and rocking arm can center on big round pin rotation; The circle hole sleeve of push rod by the bottom is contained on the small column projection on the rocking arm, and the top square cylinder passes the square hole on the support leptoprosopy; Little round pin passes cover and cooperates with aperture on the rocking arm, and the other end is located with ring washer; Torsionspring is enclosed within on the rocking arm big column, and straight-arm is against on the support leptoprosopy, and curved boom is against in the rocking arm; Support is installed on the circuit breaker, and cam is fixed on the socket, and the cover that is assemblied on the rocking arm matches with cam.
The utility model is by cam mechanism circuit breaker mobile in drawer to be converted to moving up and down of push rod, by the transmission of side mechanism, makes the contact of circuit breaker remain on off-state under particular state.Its operation principle is: insert in the operation at circuit breaker, when circuit breaker and socket are close to predetermined distance, the cam that is installed on the socket contacts with rocking arm on being installed in circuit breaker cradle, rocking arm is rotated around support, promote push rod and move upward, push rod acts on the connecting rod of side mechanism, and push rod is rotated around the cylinder axis of pedestal, withstand the tripping mechanism of circuit breaker, make circuit breaker remain on off-state; When circuit breaker is inserted into the socket prescribed depth, rack-mount rocking arm falls into the neutral of cam, and push rod resets under the effect of torsionspring, and the push rod of side mechanism resets under the effect of spring, no longer act on the tripping mechanism of circuit breaker, circuit breaker can be in can "on" position.
Extract in the operation at circuit breaker, the contact process of cam and rocking arm is that circuit breaker inserts the operation inverse process, thereby can guarantee that circuit breaker is in the disjunction state before will extracting; After circuit breaker was away from socket, cam and rocking arm disengaged, and rocking arm is resetted by the active force of torsionspring, made circuit breaker be in the state that can close a floodgate.
The utility model is simple in structure, and is easy for installation, and protection is reliable, and it is simple and crude to have overcome existing breaker mechanical interlock structure, the incomplete shortcoming of function.
(4) description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of interlock when circuit breaker separates with socket of the utility model drawer type plastic casing circuit breaker;
Fig. 2 is the structural representation of interlock in circuit breaker insertion socket process of drawer type plastic casing circuit breaker;
Fig. 3 is the structural representation of interlock after circuit breaker inserts socket of drawer type plastic casing circuit breaker;
Fig. 4 contains the schematic diagram of side mechanism for drawer type plastic casing circuit breaker;
Fig. 5 is the cam mechanism structural representation;
Fig. 6 is the socket schematic diagram that cam is housed;
Fig. 7 is a side mechanism structure schematic diagram;
Fig. 8 is the push rod schematic diagram.
Among the figure: 1 case for circuit breaker, 2 contact modules, 11 dropout levers, 12 handles, 13 rocking arms, 14 lids, 16 operating mechanisms, 17 connecting rods, 18 cams, 20 cam mechanisms, 21 side mechanisms, 22 semicircle pins, 23 supports, 24 push rods, 25 torsionsprings, 26 big round pins, 27 back-up rings, 28 covers, 29 little round pins, 30 sockets, 31 push rods, 32 pedestals, 33 springs, 34 pins, 35 connecting rods, 37 projections, 38 mounting holes.
(5) embodiment
Referring to Fig. 1, a kind of interlock of drawer type plastic casing circuit breaker comprises cam mechanism 20 and side mechanism 21.Side mechanism 21 is contained in circuit breaker contact modules 2 sides, and push rod 31 other ends of side mechanism 21 can act on dropout lever 11.One end of push rod 24 corresponding side surface mechanisms 21 connecting rods 35 of cam mechanism 20.Support 23 is installed on the circuit breaker, and support 23 tops are side mechanism 21, and cam 18 is fixed on the socket 30, and the cover 28 on the rocking arm 13 of cam mechanism 20 matches with cam 18.
Referring to Fig. 4, circuit breaker is made up of three one pole contact modules 2, contact modules 2 places in the case for circuit breaker 1, operating mechanism 16 is housed on the circuit breaker, pull the handle 12 on the operating mechanism 16,, the moving contact in the contact modules 2 is moved up and down by connecting rod 17, be switched on or switched off with fixed contact, thereby be switched on or switched off circuit.Dropout lever 11 is housed on the operating mechanism 16.Push rod 31 in the side mechanism 21 and 11 effects of dropout lever promote dropout lever 11 and rotate, and operating mechanism 16 is triped, and cause the contact in the contact modules all in the circuit breaker 2 to disconnect.Operating mechanism 16 usefulness pins are fixed on the one pole contact modules 2; Side mechanism 21 is fixedly clamped between two one pole contact modules 2 by the profile location.
Referring to Fig. 7, Fig. 8, side mechanism 21 comprises push rod 31, connecting rod 35, pin 34, pedestal 32, spring 33 and covers 14.Push rod 31, connecting rod 35 cylinder axis on pedestal 32 respectively rotate, connecting rod 35 is a crank, push rod 31 1 ends and connecting rod 35 are connect by pin 34, push rod 31 is a mounting hole 38 with pin 34 junction, push rod 31 has a projection 37 near mounting hole 38 places, spring 33 1 ends are against on the pedestal 32, and the other end withstands on location, push rod 31 upper process 37 places; Close and cover 14 and make 21 one-tenth in side mechanism as a whole.When side mechanism 21 was not subjected to cam mechanism 20 power, spring 33 made side mechanism 21 be in initial position.
Referring to Fig. 5, Fig. 6, cam mechanism 20 comprises support 23, push rod 24, torsionspring 25, rocking arm 13, big round pin 26, roundlet pin 29, semicircle pin 22, ring washer 27, cover 28.Support 23 is the sheet metal component at a right angle, has two holes on wide, has on the leptoprosopy to be used to fasten hole and square hole of wearing push rod 24 of deciding screw; The outer marginal pore that support is 23 wide cooperates with semicircle pin 22 makes semicircle pin 22 riveting jails on support 23.Rocking arm 13 is a gore; there is the big column projection at rocking arm 13 gores one summit place and has macropore; there is the small column projection at place, a summit; another place, summit has aperture; the interior marginal pore on 23 wide on the macropore that big round pin 26 passes rocking arm 13 big columns and the support cooperates makes big round pin 26 riveting jails on support 23, and rocking arm 13 can center on big round pin 26 rotations.The circle hole sleeve of push rod 24 by the bottom is contained on the small column projection on the rocking arm 13, and the top square cylinder passes the square hole on support 23 leptoprosopy.Roundlet pin 29 passes cover 28 and cooperates with aperture on the rocking arm 13, and roundlet pin 29 other ends usefulness ring washer 27 is located.Torsionspring 25 is enclosed within on rocking arm 13 big columns, and straight-arm is against on support 23 leptoprosopy, and curved boom is against in the rocking arm 13.Support 23 is installed on the circuit breaker, and cam 18 is fixed on the socket 30, and the cover 28 that is assemblied on the rocking arm 13 matches with cam 18.
Referring to Fig. 1, circuit breaker is in the outside of socket 30, and rocking arm 13 does not contact with cam 18, and cam mechanism 20 is in reset position under the effect of torsionspring 25.13 position-limiting actions of 22 pairs of rocking arms of semicircle pin make the motion of rocking arm 13 when resetting stop because of running into semicircle pin 22.Push rod 24 top square cylinders leave the connecting rod 35 of side mechanism 21 when this position, make the push rod 31 of side mechanism 21 be subjected to spring 33 active forces to be in initial position.Side mechanism 21 pairs of operating mechanisms, 16 no effects this moment, circuit breaker can be in can "on" position.
Referring to Fig. 2, when circuit breaker is inserting in socket 30 processes, rocking arm 13 is subjected to the active force of cam 18 and upwards swing.Promoted and support 23 square hole position-limiting actions by rocking arm 13, push rod 24 top square cylinders begin to move upward, along with circuit breaker is close to socket 30 certain distances, the connecting rod 35 that push rod 24 top square cylinders move upward and run into side mechanism 21, make push rod 31 actions of side mechanism 21, and then promote dropout lever 11, operating mechanism 16 is triped, cause the circuit breaker can not be closed, be in the therefore disconnection of circuit breaker closure state under.
Referring to Fig. 3, after circuit breaker inserted socket 30 and puts in place, rocking arm 13 fell into the neutral of cam 18, and cam mechanism 20 is subjected to the active force of torsionspring 25 and is in reset position.Push rod 24 top square cylinders leave the connecting rod 35 of side mechanism 21 when this position, make the push rod 31 of side mechanism 21 be subjected to spring 33 active forces to get back to initial position.Side mechanism 21 pairs of operating mechanisms, 16 no effects this moment, circuit breaker can be in can "on" position.
The utility model is simple in structure, and is easy for installation, and protection is reliable, and it is simple and crude to have overcome existing breaker mechanical interlock structure, the incomplete shortcoming of function.
Claims (2)
1. the interlock of a drawer type plastic casing circuit breaker, comprise cam mechanism (20), it is characterized in that: also comprise side mechanism (21), side mechanism (21) comprises push rod (31), connecting rod (35), pin (34), pedestal (32), spring (33) and lid (14), push rod (31), connecting rod (35) cylinder axis on pedestal (32) respectively rotates, push rod (31) one ends and connecting rod (35) are connect by pin (34), push rod (31) is a mounting hole (38) with pin (34) junction, push rod (31) has been located a projection (37) near mounting hole (38), spring (33) one ends are against on the pedestal (32), the other end withstands on push rod (31) upper process (37) and locates the location, and the lid (14) that closes makes side mechanism (21) become as a whole; Side mechanism (21) is contained in circuit breaker contact modules (2) side, and push rod (31) other end of side mechanism (21) can act on dropout lever (11); Push rod (24) respective link (35) one ends of cam mechanism (20).
2. the interlock of drawer type plastic casing circuit breaker according to claim 1, it is characterized in that: cam mechanism comprises support (23), push rod (24), torsionspring (25), rocking arm (13), big round pin (26), little round pin (29), semicircle pin (22), ring washer (27), cover (28), support (23) is the sheet metal component at a right angle, have two holes on wide, have on the leptoprosopy and be used to fasten hole and square hole of wearing push rod (24) of deciding screw; The outer marginal pore that support (23) is wide cooperates with semicircle pin (22) makes semicircle pin (22) riveting jail on support (23); Rocking arm (13) is a gore; there is the big column projection at rocking arm (13) gore one summit place and has macropore; there is the small column projection at place, a summit; another place, summit has aperture; big round pin (26) passes interior marginal pore on wide of rocking arm (13) macropore and the support (23) and cooperates and make big round pin (26) riveting jail on support (23), and rocking arm (13) can center on big round pin (26) rotation; The circle hole sleeve of push rod (24) by the bottom is contained on the small column projection on the rocking arm (13), and the top square cylinder passes the square hole on support (23) leptoprosopy; Little round pin (29) passes cover (28) and cooperates with the last aperture of rocking arm (13), and the other end is located with ring washer (27); Torsionspring (25) is enclosed within on rocking arm (13) big column, and straight-arm is against on support (23) leptoprosopy, and curved boom is against in the rocking arm (13); Support (23) is installed on the circuit breaker, and cam (18) is fixed on the socket (30), and the cover (28) that is assemblied on the rocking arm (13) matches with cam (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620045717 CN200953291Y (en) | 2006-09-12 | 2006-09-12 | Interlocking device for draw type plastic case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620045717 CN200953291Y (en) | 2006-09-12 | 2006-09-12 | Interlocking device for draw type plastic case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953291Y true CN200953291Y (en) | 2007-09-26 |
Family
ID=38811593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620045717 Expired - Lifetime CN200953291Y (en) | 2006-09-12 | 2006-09-12 | Interlocking device for draw type plastic case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953291Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184810A (en) * | 2011-05-12 | 2011-09-14 | 台安科技(无锡)有限公司 | Guide rod structure for connection pre-outage of withdrawing device of circuit breaker |
| CN102376500A (en) * | 2010-08-24 | 2012-03-14 | 上海良信电器股份有限公司 | Safety insertion self-locking device of plug-in moulded case circuit breaker |
| CN102427205A (en) * | 2011-09-07 | 2012-04-25 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device of draw-out circuit breaker |
| CN102915858A (en) * | 2011-08-05 | 2013-02-06 | 西门子公司 | Interlocking module of switch device |
| CN101866790B (en) * | 2009-04-14 | 2013-12-11 | 上海良信电器股份有限公司 | Hydraulic electromagnetic circuit breaker with high safety |
| WO2014201980A1 (en) * | 2013-06-18 | 2014-12-24 | 伊顿公司 | Safety protection device for circuit breaker |
| CN104701105A (en) * | 2015-03-05 | 2015-06-10 | 上海德布森电气有限公司 | Safety release assisting device for plug-in circuit breaker |
| CN108879260A (en) * | 2018-08-14 | 2018-11-23 | 丁汉强 | A kind of mechanical interlocks suitable for different current plug and sockets |
-
2006
- 2006-09-12 CN CN 200620045717 patent/CN200953291Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866790B (en) * | 2009-04-14 | 2013-12-11 | 上海良信电器股份有限公司 | Hydraulic electromagnetic circuit breaker with high safety |
| CN102376500B (en) * | 2010-08-24 | 2014-05-14 | 上海良信电器股份有限公司 | Safety insertion self-locking device of plug-in moulded case circuit breaker |
| CN102376500A (en) * | 2010-08-24 | 2012-03-14 | 上海良信电器股份有限公司 | Safety insertion self-locking device of plug-in moulded case circuit breaker |
| CN102184810A (en) * | 2011-05-12 | 2011-09-14 | 台安科技(无锡)有限公司 | Guide rod structure for connection pre-outage of withdrawing device of circuit breaker |
| CN102915858B (en) * | 2011-08-05 | 2014-12-24 | 西门子公司 | Interlocking module of switch device |
| CN102915858A (en) * | 2011-08-05 | 2013-02-06 | 西门子公司 | Interlocking module of switch device |
| CN102427205B (en) * | 2011-09-07 | 2012-10-10 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device of draw-out circuit breaker |
| CN102427205A (en) * | 2011-09-07 | 2012-04-25 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device of draw-out circuit breaker |
| WO2014201980A1 (en) * | 2013-06-18 | 2014-12-24 | 伊顿公司 | Safety protection device for circuit breaker |
| CN104241045A (en) * | 2013-06-18 | 2014-12-24 | 伊顿公司 | Safety protection device for circuit breaker |
| CN104241045B (en) * | 2013-06-18 | 2016-07-06 | 伊顿公司 | Safety guard for chopper |
| CN104701105A (en) * | 2015-03-05 | 2015-06-10 | 上海德布森电气有限公司 | Safety release assisting device for plug-in circuit breaker |
| CN108879260A (en) * | 2018-08-14 | 2018-11-23 | 丁汉强 | A kind of mechanical interlocks suitable for different current plug and sockets |
| CN108879260B (en) * | 2018-08-14 | 2023-08-22 | 丁汉强 | Mechanical interlocking device suitable for plugs and sockets with different currents |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200953291Y (en) | Interlocking device for draw type plastic case circuit breaker | |
| CN202353077U (en) | Ring main unit and interlocking device thereof | |
| CN101202182B (en) | Air circuit breaker and breaking spring of air circuit breaker | |
| CN101047294A (en) | Leakage protection socket | |
| CN202564845U (en) | 40.5kV metal armoured withdrawable central-positioned high-tension switch cabinet | |
| CN102509661B (en) | Operation linkage safety interlocking linkage device of electrical appliance with draw-out switchgear | |
| CN205542557U (en) | Environmental protection gas switch is integral type spring -operated mechanism for cabinet | |
| CN202258860U (en) | Control mechanism opening release | |
| CN201247698Y (en) | Grounding switch and cable house door closedown structure of switch cabinet | |
| CN202797710U (en) | Valve mechanism of withdrawable switchgear | |
| CN201846002U (en) | Valve self-locking device for switch cabinet | |
| CN214378106U (en) | Wall interlocking structure of looped netowrk cabinet | |
| CN102347153A (en) | Mechanical interlocking device of three-position isolating switch and circuit breaker | |
| CN204614743U (en) | There is the tripping assembly of stopping means | |
| CN201387836Y (en) | Three-column flip horizontal outdoor three-phase high-voltage AC isolating switch | |
| CN102568948B (en) | Improved circuit breaker | |
| CN102427205B (en) | Interlocking device of draw-out circuit breaker | |
| CN209071930U (en) | A kind of mechanical interlocks and drawout cubicle | |
| CN209962911U (en) | Emergency opening mechanical interlocking device of fixed circuit breaker | |
| CN102737876A (en) | Interlocking indication device of switch operation interlocking mechanism | |
| CN203278066U (en) | Circuit auxiliary lead wire plug connection protecting device for switch device | |
| CN219696381U (en) | Plug-in molded case circuit breaker | |
| CN202487483U (en) | Bi-modular-mechanism vacuum circuit breaker | |
| CN203800401U (en) | Bypass device, drawable chassis and power distribution system | |
| CN205789577U (en) | A kind of breaker and switch group closes the interlock of electrical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070926 |
|
| EXPY | Termination of patent right or utility model |