CN102683065B - Door interlock device for vacuum breaker - Google Patents
Door interlock device for vacuum breaker Download PDFInfo
- Publication number
- CN102683065B CN102683065B CN201210064197.6A CN201210064197A CN102683065B CN 102683065 B CN102683065 B CN 102683065B CN 201210064197 A CN201210064197 A CN 201210064197A CN 102683065 B CN102683065 B CN 102683065B
- Authority
- CN
- China
- Prior art keywords
- securing rod
- door
- main part
- support
- locking mechanism
- 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 - Fee Related
Links
- 230000004888 barrier function Effects 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 230000009194 climbing Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6664—Operating arrangements with pivoting movable contact structure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Trip Switchboards (AREA)
Abstract
The invention provides a door interlock device for a vacuum breaker. The door interlock device comprises: a barrier component arranged to move between the first position and the second position, wherein the barrier component is around a periphery of a front end handle connection end of a mandrel to prevent the front end handle connection end of the mandrel on the first position, and the front end handle connection end is exposed by the barrier component on the second position to allow the front end handle connection end to be connected with an operation handle; a locking mechanism arranged to has a limit position and a release position, wherein the limit position is used for preventing the barrier component from moving towards the second position, the release position is used for releasing the barrier component and the barrier component is elastically biased on the limit position; and a locking releasing rod facing the locking mechanism, thereby driving the locking mechanism in the following way: when a door for a bracket of the vacuum breaker is closed, the locking mechanism is contacted with the release position and when the door is opened, the locking mechanism is separated.
Description
Technical field
The disclosure relates to a kind of vacuum circuit-breaker, more specifically, relate to a kind of door interlock for vacuum circuit-breaker, it is only in the time that the door of support is closed, allow breaker body to be transformed into link position (, run location) from open position or test position.
Background technology
Conventionally, vacuum circuit-breaker be a kind of when switching high-voltage electric power circuit and break down on the line electric current in the place of handle high voltages circuit (as power plant or transformer station) power switching apparatus of disrupted circuit.
Conventionally, vacuum circuit-breaker with comprise that multiple electric devices of circuit breaker, electric force monitoring apparatus etc. are used in conjunction with, for power plant or the management of transformer station or the operation control of control or motor, and vacuum circuit-breaker can arrange and use in power distribution plate.
In addition, as the example of this type of vacuum circuit-breaker, the vacuum circuit-breaker of being manufactured and being distributed by the applicant can comprise support 100, breaker body 10, movable bracket (being also adjustable shelf) 200, nut assembly (not shown), axle 220, beam assembly 20 and door 110.
As the parts that are provided with the shell that is fixed to power distribution plate, support 100 has support terminal 100a, and support terminal 100a can be electrically connected to mains side and the electrical load side line road in external power circuit.
With reference to figure 1, Reference numeral 102 represents the lower support base portion of support 100.
Breaker body 10 is accommodated in support 100, and the key component of breaker body 10 can comprise: vacuum interrupter, and it is the contact site for commutation circuit; Switching mechanism, it is for driving to switch vacuum interrupter; Main body side terminal 10a, it is connected or separation with support terminal 100a, so that breaker body 10 is electrically connected or separates with support 100.In addition, breaker body 10 has the link position that main body side terminal 10a contacts with support terminal 100a, and main body side terminal the 10a test position or the open position that separate with support terminal 100a.
As breaker body 10 being loaded into top and breaker body 10 being transformed into the parts of link position, test position or open position, movable bracket 200 can comprise being illustrated as to have the top of opening the rectangular box shape main body that is provided with multiple runners at two side surfaces of main body.
Described nut assembly can comprise the nut and the periphery supporting device thereof that are fixed to movable bracket 200.
As the parts that engage the actuating force that is provided for mobile movable bracket 200 with described nut assembly, axle 220 has front end handle and connects end (seeing the Reference numeral 223 in Fig. 9), so that it is connected with control crank (seeing the symbol " H " in Fig. 5); And threaded portion (seeing the Reference numeral 221 in Fig. 9), the most surface that has occupied whole length is thereon formed as thread surface.At this, front end handle connects end (seeing the Reference numeral 223 in Fig. 9) can be configured to have hexagon outer surface to increase the frictional force to control crank (seeing the symbol " H " in Fig. 5).The leading section of control crank can have perimeter surface in the hexagon corresponding with the hexagon outer surface of front end handle connection end.
As the parts of the leading section (reveal end) of bearing core shaft 220, beam assembly 20 has the support strip (seeing the Reference numeral 20a in Fig. 4) in the support holes portion that is inserted into front side board 101 places that are formed on support 100.Beam assembly 20 disposes horizontal square column member, and is fixed and supports by support strip 20a being inserted in the support holes portion of support 100.
Door 110 is combined with rotatable mode hinge with support 100, thereby opens or closes the front surface of support 100.Door 110 can comprise the hollow guiding tube 110a that is positioned at its underpart, even so that under the state of closing at door 110, the front end handle that also control crank can be directed to axle 220 connects a side of end.
Meanwhile, existing being described in has according in the vacuum circuit-breaker of the above-mentioned configuration in the example of prior art, breaker body is transformed into the operation of link position (run location) as shown in Figure 2 from test position as shown in Figure 1 or open position.
For running circuit breaker main body 10, thereby the main body side terminal 10a of breaker body 10 and the support terminal 100a of support 100 are connected, under the state of closing at door 110, the guiding tube 110a that the front end handle of control crank and axle 220 is connected the bottom of end (seeing the Reference numeral 223 in Fig. 9) by being arranged on door 110 by user is combined, or under door 110 states of opening as shown in Figure 1, directly control crank is connected to end with the front end handle of axle 220 and be combined, and it is rotated in the counterclockwise direction.
Then the movable bracket 200, engaging with the threaded portion of axle 220 is along with the counter clockwise direction rotation of axle 220 moves forward towards support terminal 100a along the threaded portion of axle 220 by means of nut assembly.
As a result, as shown in Figure 2, the outer surface of the main body side terminal 10a of breaker body 10 contacts with the interior perimeter surface of the support terminal 100a of support 100, to complete connection.
Make breaker body 10 be transformed into test position as shown in Figure 1 or the operation of open position also can be transformed into link position (run location) according to the direction contrary with aforesaid operations from link position (run location) as shown in Figure 2.
But; allow under door 110 states of opening of support 100 according to the vacuum circuit-breaker of the example of above-mentioned prior art; breaker body 10 is transformed into link position (run location) as shown in Figure 2 from test position or open position as shown in Figure 1; thereby cause following problem: in the time that outside high-voltage electric power circuit is connected to the support terminal 100a in conduction state, cannot protect user to avoid electrical safety accident.
Summary of the invention
Therefore; the disclosure is devoted to solve the problem existing in the prior art; and object of the present disclosure is to provide a kind of door interlock for vacuum circuit-breaker; it can only allow to make breaker body to move to the manipulation of run location in the time that the door of support is closed, thereby protection user avoids electrical safety accident.
A kind of vacuum circuit-breaker, comprising: support, and it is configured to have the terminal that is electrically connected to external power load-side power circuit and mains side power circuit, and is provided with shell; Breaker body, it has vacuum interrupter, and is configured to move to the run location being connected with the terminal of described support and test position or the open position separating with support terminal, thereby disconnects or closed power circuit; Movable bracket, it is configured to load described breaker body so that it moves to run location or test position or open position; Nut assembly, it is fixed to movable bracket; Axle, it has the threaded portion that front end handle connects end and engages with described nut assembly, to be provided for the actuating force of mobile movable bracket and to make it be connected to control crank; Beam assembly, its front side portion that is fixed to described support is to support the leading section of described axle; And door, it is arranged on support place, to open or close the front surface of described support, for realizing object of the present disclosure, provides a kind of door interlock for described vacuum circuit-breaker, and described door interlock comprises:
Barrier assembly, it is arranged on described beam assembly and sentences and move to primary importance and the second place, at described primary importance place, described barrier assembly connects the periphery of end around described front end handle, thereby the front end handle that prevents described axle connects the connection between end and described control crank, at described second place place, described barrier assembly exposes described front end handle connection end, thereby allows described front end handle to connect the connection between end and described control crank;
Locking mechanism, it is arranged on described beam assembly to have restriction site and off-position, described restriction site is for preventing the movement of described barrier assembly to the described second place, and described off-position is used for discharging described barrier assembly, and described barrier assembly is flexibly biased to described restriction site; And
Lock release lever, it is fixed and is arranged on described door and sentences towards described locking mechanism, thereby drives in the following way described locking mechanism: in the time that described door is closed, contact with described off-position, and in the time that described door is opened, described locking mechanism is separated.
According to a preferred version of the present disclosure, described locking mechanism comprises:
Securing rod, it is configured to move into place the restriction site in the mobile route of the second place to described barrier assembly and leaves the off-position of described mobile route location;
Supporting base, it is configured to support described securing rod; And
Bias spring, one end thereof is supported by described supporting base, and another end is supported by described securing rod, to allow described securing rod to be flexibly biased to described restriction site.
According to another preferred version of the present disclosure, described securing rod comprises:
Center rod main part, it has smooth upper surface and is formed with the lower surface of inclined surface, with by contacting climbing power is provided with the described lock release lever of described door;
Spring-loaded portion, it upwards extends and passes described bias spring to support described bias spring from described bar main part, thereby prevents separation in the horizontal direction; And
Securing rod portion, it is from described bar main part to downward-extension, to move into place the restriction site in the mobile route of described barrier assembly and to leave the off-position that described mobile route is located.
According to another preferred version of the present disclosure, can further comprise according to the door interlock for vacuum circuit-breaker of the present disclosure: secondary locking released strip, its position that is assemblied in adjacent support pedestal is to allow user mutual with it, while opening with box lunch door, contact with the main part of described securing rod, thereby described securing rod is urged to described off-position.
According to another preferred version of the present disclosure, described securing rod can further comprise: restriction extension, it extends to have lock(ing) bolt from described main part can insert lock(ing) bolt connecting hole portion wherein.
According to another preferred version of the present disclosure, the outer surface of described spring-loaded portion is formed by multiple recessed surfaces and nonreentrant surface, to reduce the frictional force to described bias spring.
According to another preferred version of the present disclosure, described supporting base can comprise:
Main part, it has " U " shape level cross-sectionn; And
Pair of flanges portion, it extends from described main part along continuous straight runs, to be provided for that described main part is fixed to the parts on described beam assembly.
According to another preferred version of the present disclosure, described main part comprises:
A pair of lower passage wall portion, it is configured to be greater than because of its width the width of the bar main part of described securing rod, thereby allows moving both vertically of described bar main part;
A pair of central passage wall portion, it is configured to allow moving both vertically of described spring-loaded portion and described bias spring, the width of described central passage wall portion is formed as being greater than the diameter of described spring-loaded portion and the diameter of described bias spring, but is less than the width of described bar main part; And
A pair of topmost conduit wall portion, it is configured to only to allow moving both vertically of described spring-loaded portion, and the width of described topmost conduit wall portion is greater than the diameter of described spring-loaded portion, but is less than the diameter of described bias spring.
According to another preferred version of the present disclosure, the flange part of described supporting base comprises:
A pair of foot conduit wall portion, it is formed as described flange part a pair of inwall towards each other, only to allow moving both vertically of described securing rod portion, the width of described foot conduit wall portion is less than the width of the bar main part of described securing rod, but is greater than the width of described securing rod portion.
According to another preferred version of the present disclosure, described locking mechanism further comprises: bonnet, surface is opened at its rear portion that is configured to cover described supporting base, thereby prevents the separation of described securing rod in the backward directions of described supporting base.
Brief description of the drawings
Accompanying drawing is involved further to be understood the present invention to provide, and it is incorporated in this specification and forms the part of this specification, and accompanying drawing shows embodiments of the invention and be used for explaining principle of the present invention together with specification.
In the accompanying drawings:
Fig. 1 shows according to the stereogram of breaker body in test position or open position in the vacuum circuit-breaker of the embodiment of prior art, in the time that door is opened;
Fig. 2 be show according in the vacuum circuit-breaker of the embodiment of prior art when door breaker body stereogram in run location while opening;
Fig. 3 shows the stereogram that is arranged on the configuration of the lock release lever at the door place of support at the door interlock for vacuum circuit-breaker according to a preferred embodiment of the invention;
Fig. 4 shows the stereogram that is arranged on the configuration of locking mechanism in the conversion equipment of vacuum circuit-breaker and lock release lever at the door interlock for vacuum circuit-breaker according to a preferred embodiment of the invention;
Fig. 5 is the stereogram showing in the configuration of door interlock barrier assembly, locking mechanism, axle and control crank for vacuum circuit-breaker according to a preferred embodiment of the invention;
Fig. 6 is the zoomed-in view showing at the leading section of door interlock barrier assembly, locking mechanism and axle for vacuum circuit-breaker according to a preferred embodiment of the invention;
Fig. 7 is the back upper place stereogram showing at the door interlock barrier assembly for vacuum circuit-breaker according to a preferred embodiment of the invention;
Fig. 8 is the exploded perspective view showing at the door interlock locking mechanism for vacuum circuit-breaker according to a preferred embodiment of the invention;
Fig. 9 is the end view that shows barrier assembly, locking mechanism and the axle under the state of locking mechanism restriction barrier assembly at the door interlock for vacuum circuit-breaker according to a preferred embodiment of the invention; And
Figure 10 shows the end view that discharges lock release lever, barrier assembly, locking mechanism and axle under the state of barrier assembly at the door interlock for vacuum circuit-breaker according to a preferred embodiment of the invention at locking mechanism by lock release lever.
Embodiment
By the description to preferred embodiment of the present disclosure below with reference to accompanying drawing, object of the present disclosure and configuration and the working effect of realizing above-mentioned purpose will be more clearly understood.
First be, the device for aforementioned vacuum circuit-breaker as depicted in figs. 1 and 2 according to the door interlock of an embodiment of the present disclosure.
Therefore, as depicted in figs. 1 and 2, arrange and used according to the vacuum circuit-breaker of the door interlock of an embodiment of the present disclosure and can comprise: support 100, it is configured to have the support terminal 100a that is electrically connected to external power load-side power circuit and mains side power circuit, and is provided with shell; Breaker body 10, it has vacuum interrupter, and this vacuum interrupter is configured to move to the run location being connected with support terminal 100a, and the test position or the open position that separate with support terminal 100a, thereby switches power circuit; Movable bracket 200, it is configured to load breaker body 10 so that it moves to run location or test position or open position; Nut assembly (seeing the Reference numeral 201 in Fig. 4), it is fixed to movable bracket 200; Axle 220, it has the threaded portion 221 that front end handle connects end (seeing the Reference numeral 223 in Fig. 6) and engages with nut assembly 201, to be provided for the actuating force of mobile movable bracket 200 and to make it be connected to control crank (seeing the symbol H in Fig. 5); Beam assembly 20, it is fixed to the front side portion 101 of support 100 with the leading section of bearing core shaft 220; And door 110, it is arranged on support 100 places, to open or close the front surface of support 100.
With reference to figure 4, Reference numeral 210 prevents the guiding elements in movable bracket 200 interior vertical vibrations during representing to be used for guiding axle 220 with the rotation in axle 220, and is arranged on movable bracket 200 places for running through guiding elements 210 with the guide rod (not shown) of guiding guiding elements 210 linear movements.
Meanwhile, with reference to Fig. 3 to Figure 10 describe have above-mentioned configuration according to the configuration of the door interlock of preferred embodiment of the present disclosure.
Comprise barrier assembly 230, locking mechanism 300 and lock release lever 120 according to the door interlock for vacuum circuit-breaker of preferred embodiment of the present disclosure.
With reference to figure 4, although owing to fixing and being arranged on upper bearing plate and the lower support plate at header board place of beam assembly 20 and the blocking and not shown barrier assembly 230 of front support member 20b of disposing front support plate, but barrier assembly 230 is arranged between the header board of beam assembly 20 places, beam assembly 20 and front support member 20b to move forward and backward preset distance, and front support plate is inserted and secured between described upper bearing plate and lower support plate.Barrier assembly 230 is flexibly biasing by the return spring (not shown) between the header board of beam assembly 20 and the rear surface of barrier assembly 230, to move to below by the primary importance of describing.
Barrier assembly 230 can move to primary importance and the second place, at primary importance place, barrier assembly 230 connects the periphery of end (seeing the Reference numeral 223 in Fig. 6) around front end handle, thereby prevents that the front end handle of axle 220 from connecting the connection between end 223 and control crank (seeing the symbol H in Fig. 5); At second place place, barrier assembly 230 exposes front end handle connection end 223, thereby allows front end handle to connect the connection between end 223 and control crank (seeing the symbol H in Fig. 5).
As shown in Figure 7, barrier assembly 230 comprises the first board 231 that is positioned at its front surface and the second board 232 that is positioned at its rear side.
Described the first board 231 comprises the through-hole section 231a that the leading section 222 for allowing axle 220 runs through.
The first board 231 has flat part and pair of curved portion, and for obtaining described bend, two ends of described flat part are spent along direction bending 90 backward.
Described pair of curved portion has spring-loaded hole portion (not providing Reference numeral), this spring-loaded hole portion is in order to engage and an end of supporting return spring, and another end of described return spring is by being formed on the support holes portion (not shown) supporting at header board place of beam assembly 20.
Described the second board 232 comprises hexagon through-hole section 232a, and hexagon through-hole section 232a is connected end 223 in order to the front end handle inserting and guiding has a hexagon outer surface, and it is arranged in axle 220 and is close to the rear side of leading section 222.
With reference to figure 5, axle 220 has the thread surface portion 221 that is formed as having predetermined length at the rear side of front end handle connection end 223.
With reference to figure 4, locking mechanism 300 is arranged on beam assembly 20, and has and prevent the restriction site of barrier assembly 230 to the movement of the second place, and discharges the off-position of barrier assembly 230.Locking mechanism 300 can elastic biasing to restriction site.
With reference to figure 6 or Fig. 8, locking mechanism 300 comprises securing rod 310, supporting base 320 and bias spring 330.
Described securing rod 310 is such element, and it can move into place the restriction site in the mobile route of the second place to barrier assembly 230, and leaves the off-position of mobile route location.
With reference to figure 8, securing rod 310 comprises center rod main part 312, spring-loaded portion 311 and securing rod portion 313.
Bar main part 312 has smooth upper surface, and is formed with the lower surface S of clinoplain, with by contacting climbing power is provided with the lock release lever 120 of door 110.
Spring-loaded portion 311 is the parts for supporting bias spring 330, and it upwards extends and pass bias spring 330 with supporting bias spring 330 from bar main part 312, thereby prevents separation in the horizontal direction.Spring-loaded portion 311 comprises multiple recessed surperficial 311b and nonreentrant surface 311a, to reduce the frictional force to bias spring 330.
Described securing rod portion 313 is such parts: it is from bar main part 312 to downward-extension, to move into place the restriction site in the mobile route of barrier assembly 230, and leaves the off-position of mobile route location.
In addition, according to a preferred version of the present disclosure, as shown in Figure 8, described securing rod 310 can further comprise restriction extension 314, restriction extension 314 extends transversely from bar main part 312, can insert the lock(ing) bolt connecting hole 314a of portion wherein to have lock(ing) bolt (not shown).
As the parts for supporting securing rod 310, supporting base 320 comprises the main part 320a with " U " shape level cross-sectionn, and the 320b of pair of flanges portion, described flange part provides the parts on the front support member 20b for main part 320a being fixed to beam assembly 20.
With reference to figure 8, the main part 320a with " U " shape level cross-sectionn comprises: a pair of lower passage wall 321c of portion, and it is configured to be greater than because of its width w5 the width w1 of the bar main part 312 of securing rod 310, thereby allows moving both vertically of bar main part 312; The a pair of central passage wall 321b of portion, it is configured to because its width w4 is formed as being greater than the diameter d 1 of spring-loaded portion 311 and the diameter d 2 of bias spring 330 but is less than the width w1 of bar main part 312, thereby allows moving both vertically of spring-loaded portion 311 and bias spring 330; And a pair of topmost conduit wall 321a of portion, it is configured to because its width w3 is greater than the diameter of spring-loaded portion 311 but is less than the diameter d 2 of bias spring 330, thereby only allows moving both vertically of spring-loaded portion 311.
With reference to figure 6, main part 320a comprises the patchhole portion 340 that bottom forms in backward directions in the past, to allow the insertion of lock release lever 120 or secondary locking released strip (seeing the Reference numeral 323 in Fig. 8).
In addition, the described pair of flanges 320b of portion comprises a pair of foot conduit wall 321d of portion, and the described a pair of foot conduit wall 321d of portion is formed as the inwall a pair of facing each other of flange part 320b.
The described a pair of foot conduit wall 321d of portion, because of its width w6 be less than securing rod 310 bar main part 312 width w1 but be greater than the width w2 of securing rod portion 313, thereby only allow moving both vertically of securing rod portion 313.
With reference to figure 8, the topmost conduit wall 321a of portion, the central passage wall 321b of portion, the lower passage wall 321c of portion and the foot conduit wall 321d of portion can form vertical passage portion 321 to be provided for the path moving both vertically of securing rod 310.
In four positions altogether, the first screw hole 320b2s corresponding with the screw hole 350a of bonnet 350 are set, these four positions be included in respectively main part 320a upper rear portion two positions and in two positions of a pair of rear surface of flange part 320b.
In addition, be respectively arranged with the second screw hole 320b1 in the upper edge of the 320b of pair of flanges portion, to be allowed for that locking mechanism 300 is fixed to fixed screw on the upper bearing plate of the front support member 20b in beam assembly 20 through wherein.
With reference to figure 8, bias spring 330 is set to: one end thereof is supported by supporting base 320, and its another end is supported by the bar main part 312 of securing rod 310, with the spring-loaded portion 311 around securing rod 310, thereby allow securing rod 310 to be flexibly biased to described restriction site.
In addition, with reference to figure 8, described locking mechanism 300 further comprises bonnet 350, and bonnet 350 is configured to cover the rear portion of supporting base 320 and opens surface, thereby prevents that securing rod 310 from separating in the direction backward of supporting base 320.
With reference to figure 8, the front surface of bonnet 350 can be formed as the plate of essentially rectangular, and allows to be arranged on through screw hole 350a wherein in conjunction with screw four edges of the upper and lower of bonnet 350.In addition the downside that, lock(ing) bolt slot part 350b is arranged on bonnet 350 is to allow lock(ing) bolt to pass wherein.
In addition,, with reference to figure 8, supporting base 320 comprises respectively lock(ing) bolt connecting hole portion and lock(ing) bolt connection groove section (not given Reference numeral) in its rear surface and side surface, with corresponding with the lock(ing) bolt connecting hole 314a of portion of securing rod 310.
At this, allow lock(ing) bolt (not shown) to insert state locking mechanism 300 is limited in to restriction site as following state: lock(ing) bolt slot part 350b, the lock(ing) bolt connecting hole 314a of portion of securing rod 310, and the lock(ing) bolt connecting hole portion of supporting base 320 and lock(ing) bolt connection groove section communicate with each other, and this state is following state: securing rod portion 313 is moved down into restriction site.
Therefore, if lock(ing) bolt (not shown) is by lock(ing) bolt slot part 350b, the lock(ing) bolt connecting hole 314a of portion of securing rod 310, and the lock(ing) bolt connecting hole portion of supporting base 320 and the insertion of lock(ing) bolt connection groove section, be moved down under the state of restriction site lock(ing) bolt in securing rod portion 313 subsequently locked, as shown in Figure 5, barrier assembly 230 is positioned at the primary importance that connects the periphery of end 223 around front end handle, thereby the front end handle that prevents axle 220 connects the connection between end (seeing the Reference numeral 223 in Fig. 6) and control crank H.Therefore, can not allow the front end handle by control crank H being connected to axle 220 to connect end (seeing the Reference numeral 223 in Fig. 6) and breaker body 10 is transformed into another position.
In addition,, as shown in Fig. 6 or Fig. 8, according to a preferred version of the present disclosure, released strip assembly fixture 322 provides the parts that can assemble secondary locking released strip 323 and the front side portion that can be arranged on supporting base 320.Released strip assembly fixture 322 can be formed as entirety with supporting base 320, or by combining as the link of screw and supporting base 320.Released strip assembly fixture 322 has lower support pedestal and upper opening portion with assembling secondary locking released strip 323, and be set to the side of adjacent support pedestal 320, thereby secondary locking released strip 323 is by the side support of supporting base 320, thereby can be formed with front openings member.
With reference to figure 6 or Fig. 8, according to a preferred version of the present disclosure, can further comprise that for the door interlock of vacuum circuit-breaker secondary locking released strip 323 is to allow user mutual with it in the position of adjacent support pedestal 320.
Secondary locking released strip 323 is assemblied on released strip assembly fixture 322.In addition, in the time that door is opened, secondary locking released strip 323 contacts with the bar main part 312 of securing rod 310, thereby the parts that securing rod 310 can be urged to off-position are provided.
In other words, open but because external high pressure power circuit is not connected to support terminal 100a or therefore breaker body 10 can be guaranteed under the state of user security in open position at door 110, in the time that user wishes breaker body 10 to be transformed into link position (run location), secondary locking released strip 323 can be the parts that for artificially, securing rod 310 are urged to off-position.
Simultaneously, with reference to figure 3 or Fig. 4, thereby lock release lever 120 can be fixed and be arranged on door 110 and sentence towards locking mechanism 300 driving locking mechanisms 300, in the time that door 110 is closed, locking mechanism 300 is contacted with off-position, and in the time that door 110 is opened, makes described locking mechanism 300 separate.
Meanwhile, also attach and describe according to the operation of the door interlock for vacuum circuit-breaker of a preferred embodiment of the present disclosure with reference to other accompanying drawings with reference to figure 9 and Figure 10 main below.
Suppose and describe such situation: under the state in breaker body 10 in open position or test position, breaker body 10 is transformed into run location by user.
First, according to the door interlock for vacuum circuit-breaker of a preferred embodiment of the present disclosure, if door 110 is opened, as shown in Figure 9, by the elastic force of bias spring 330, securing rod portion 313 is moved down into restriction site.
Therefore, barrier assembly 230 is positioned at the primary importance that connects the periphery of end 223 around front end handle, thereby prevents that the front end handle of axle 220 from connecting being connected between end 223 and control crank (seeing the symbol H in Fig. 5).As a result, can not allow to connect end 223 and breaker body 10 is transformed into another position by control crank H being connected to front end handle, therefore fundamentally protect user to avoid electrical safety accident.
Otherwise, according to the door interlock for vacuum circuit-breaker of preferred embodiment of the present disclosure, if door 110 is closed, as shown in Figure 10, when moving up, the securing rod portion 313 of securing rod 310 contact with lock release lever 120 and when lower surface S that locked release lever 120 is squeezed in bar main part 312 goes up, securing rod 310 moves to off-position simultaneously.
Therefore, if barrier assembly 230 is pushed by control crank H, barrier assembly 230 moves up to be positioned at the second place in side backward, exposes, thereby allow the front end handle of axle 220 to connect being connected between end 223 and control crank H and front end handle is connected to end 223.As a result, the front end handle that control crank H is connected to axle 220 connects end 223, thereby allows breaker body 10 to be transformed into run location.
In the case, user is shielded by door 110, therefore, even be connected to support terminal 100a and during in conduction state, still can protect safely user to avoid security incident at outside high-voltage electric power circuit.
Claims (9)
1. for a door interlock for vacuum circuit-breaker, described vacuum circuit-breaker comprises: support, and it is configured to have the terminal that is electrically connected to external power load-side power circuit or mains side power circuit, and is provided with shell; Breaker body, it has vacuum interrupter, and is configured to move to the run location being connected with the terminal of described support or test position or the open position separating with the terminal of described support, thereby disconnects or closed power circuit; Movable bracket, it is configured to load described breaker body so that it moves to run location or test position or open position; Nut assembly, it is fixed to movable bracket; Axle, it has the threaded portion that front end handle connects end and engages with described nut assembly, to be provided for the actuating force of mobile movable bracket and to allow control crank to be connected with described axle; Beam assembly, its front side portion that is fixed to described support is to support the leading section of described axle; And door, it is arranged on support place, to open or close the front surface of described support, it is characterized in that, and described door interlock comprises:
Barrier assembly, it is arranged on described beam assembly and sentences and move to primary importance or the second place, at described primary importance place, described barrier assembly connects the periphery of end around described front end handle, thereby the front end handle that prevents described axle connects the connection between end and described control crank, at described second place place, described barrier assembly exposes described front end handle connection end, thereby allows described front end handle to connect the connection between end and described control crank;
Locking mechanism, it is arranged on described beam assembly to have restriction site and off-position, described restriction site is for preventing the movement of described barrier assembly to the described second place, and described off-position is used for discharging described barrier assembly, and described barrier assembly is flexibly biased to described restriction site; And
Lock release lever, it is fixed and is arranged on described door and sentences towards described locking mechanism, thereby described lock release lever can drive described locking mechanism to described off-position by contact in the time that described door is closed, and is located away from described locking mechanism in the time that described door is opened;
Wherein, described locking mechanism comprises:
Securing rod, it is configured to move to restriction site or off-position, wherein said restriction site is that described securing rod is positioned at the position in the mobile route that described barrier assembly advances towards the described second place, and described off-position is that described securing rod is orientated the position away from described mobile route as;
Supporting base, it is configured to support described securing rod; And
Bias spring, one end thereof is supported by described supporting base, and its another end is supported by described securing rod, and its described securing rod of flexibly setovering is to make described securing rod move towards the described restriction site of described securing rod.
2. door interlock according to claim 1, wherein, described securing rod comprises:
Center rod main part, it has smooth upper surface and is formed with the lower surface of inclined surface, with by contacting climbing power is provided with the described lock release lever of described door;
Spring-loaded portion, it upwards extends and passes described bias spring to support described bias spring from described center rod main part, thereby prevents bias spring separation in the horizontal direction; And
Securing rod portion, it is from described center rod main part to downward-extension, to move into place the restriction site in the mobile route of described barrier assembly and to leave the off-position that described mobile route is located.
3. door interlock according to claim 2, further comprises:
Secondary locking released strip, its position that is assemblied in adjacent support pedestal, to allow user mutual with it, with the main part of described securing rod contacts while opening with box lunch door, thereby described securing rod is urged to the described off-position of described securing rod.
4. door interlock according to claim 2, wherein, described securing rod further comprises:
Restriction extension, it extends to have lock(ing) bolt from described central body portion can insert lock(ing) bolt connecting hole portion wherein.
5. door interlock according to claim 2, wherein, the outer surface of described spring-loaded portion is formed by multiple recessed surfaces and nonreentrant surface, to reduce the frictional force to described bias spring.
6. door interlock according to claim 2, wherein, described supporting base comprises:
Main part, it has " U " shape level cross-sectionn; And
Pair of flanges portion, it extends from described main part along continuous straight runs, to be provided for that described main part is fixed to the parts on described beam assembly.
7. door interlock according to claim 6, wherein, described main part comprises:
A pair of lower passage wall portion, it is configured to be greater than because of its width the width of the bar main part of described securing rod, thereby allows moving both vertically of described bar main part;
A pair of central passage wall portion, it is configured to allow moving both vertically of described spring-loaded portion and described bias spring, the width of described central passage wall portion is formed as being greater than the diameter of described spring-loaded portion and the diameter of described bias spring, but is less than the width of described bar main part; And
A pair of topmost conduit wall portion, it is configured to only to allow moving both vertically of described spring-loaded portion, and the width of described topmost conduit wall portion is greater than the diameter of described spring-loaded portion, but is less than the diameter of described bias spring.
8. door interlock according to claim 6, wherein, the flange part of described supporting base comprises:
A pair of foot conduit wall portion, it is formed as described flange part a pair of inwall towards each other, only to allow moving both vertically of described securing rod portion, the width of described foot conduit wall portion is less than the width of the bar main part of described securing rod, but is greater than the width of described securing rod portion.
9. door interlock according to claim 1, wherein, described locking mechanism further comprises: bonnet, surface is opened at its rear portion that is configured to cover described supporting base, thereby prevents that described securing rod from separating in the backward directions of described supporting base.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110021531A KR101158644B1 (en) | 2011-03-10 | 2011-03-10 | Transfer apparatus having an interlock portion of circuit breaker |
| KR10-2011-0021531 | 2011-03-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102683065A CN102683065A (en) | 2012-09-19 |
| CN102683065B true CN102683065B (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210064197.6A Expired - Fee Related CN102683065B (en) | 2011-03-10 | 2012-03-12 | Door interlock device for vacuum breaker |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101158644B1 (en) |
| CN (1) | CN102683065B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101704430B1 (en) * | 2014-11-26 | 2017-02-09 | 현대중공업 주식회사 | Interlock device of vaccum circuit breaker |
| CN106098482B (en) * | 2015-04-30 | 2018-04-27 | 现代电力与能源系统株式会社 | The insertion of breaker and withdrawing device |
| CN106505350B (en) * | 2016-12-26 | 2018-10-16 | 珠海优特电力科技股份有限公司 | Terminal block blocking device |
| CN111880399B (en) * | 2020-06-30 | 2022-08-09 | 海益（厦门）建材工业有限公司 | Lifting circuit and lifting device capable of achieving anti-pinch function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1574146A (en) * | 2003-04-24 | 2005-02-02 | Lg产电株式会社 | Main switch conveying apparatus for vacuum circuit breaker |
| CN101662127A (en) * | 2009-08-27 | 2010-03-03 | 北京双杰电气股份有限公司 | Five-prevention interlocking device |
| JP4561578B2 (en) * | 2005-10-13 | 2010-10-13 | 富士電機機器制御株式会社 | Vacuum circuit breaker |
| CN101937799A (en) * | 2009-06-25 | 2011-01-05 | Ls产电株式会社 | Device for preventing withdrawing and inserting of a circuit breaker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2682294B2 (en) * | 1991-09-19 | 1997-11-26 | 三菱電機株式会社 | Draw-out circuit breaker |
| KR200196957Y1 (en) | 1997-12-27 | 2000-10-02 | 이종수 | Vacuum circuit position locking device |
| JP2007336763A (en) | 2006-06-19 | 2007-12-27 | Fuji Electric Fa Components & Systems Co Ltd | Switch gear |
-
2011
- 2011-03-10 KR KR1020110021531A patent/KR101158644B1/en active IP Right Grant
-
2012
- 2012-03-12 CN CN201210064197.6A patent/CN102683065B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1574146A (en) * | 2003-04-24 | 2005-02-02 | Lg产电株式会社 | Main switch conveying apparatus for vacuum circuit breaker |
| JP4561578B2 (en) * | 2005-10-13 | 2010-10-13 | 富士電機機器制御株式会社 | Vacuum circuit breaker |
| CN101937799A (en) * | 2009-06-25 | 2011-01-05 | Ls产电株式会社 | Device for preventing withdrawing and inserting of a circuit breaker |
| CN101662127A (en) * | 2009-08-27 | 2010-03-03 | 北京双杰电气股份有限公司 | Five-prevention interlocking device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开第4561578B2 2010.08.06 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101158644B1 (en) | 2012-06-26 |
| CN102683065A (en) | 2012-09-19 |
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