CN205385239U - Valve and earthing switch's interlock - Google Patents
Valve and earthing switch's interlock Download PDFInfo
- Publication number
- CN205385239U CN205385239U CN201520991189.5U CN201520991189U CN205385239U CN 205385239 U CN205385239 U CN 205385239U CN 201520991189 U CN201520991189 U CN 201520991189U CN 205385239 U CN205385239 U CN 205385239U
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- plate
- interlock
- valve
- earthed switch
- transmission shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 230000033001 locomotion Effects 0.000 claims description 9
- 238000002955 isolation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a valve and earthing switch's interlock, the device includes the cabinet body, the interlocking board, drive mechanism, bent plate and earthing switch operating axis, be equipped with locking plate on the earthing switch operating axis, drive mechanism includes the transmission shaft, the driving medium that is equipped with the baffle on the transmission shaft and is connected with the one end of interlocking board, the other end of interlocking board is equipped with the spring bolt, be equipped with the hasp on the bent plate and pass through the mouth, be in the closure state at the valve, the bent plate downstream is kept off to the interlocking plate resistance, the bent plate shelters from the earthing switch handle hole. In the valve open mode, the interlocking board rotates under the drive of transmission shaft in order to remove spacing to the bent plate, and bent plate downstream messenger earthing switch handle hole exposes, and locking plate is spacing to the baffle. The utility model discloses an interlock realizes can not carrying out the operation to grounding switch blade at the isolator operating position, after earthing knife -switch closed a floodgate, the epaxial locking plate of earthing switch operation realized can not carrying out isolator's operation in earthing knife -switch combined floodgate back to the transmission shaft locking.
Description
Technical field
This utility model relates to Medium voltage switch or circuit breaker field, is specifically related to the interlock of a kind of valve and earthed switch.
Background technology
Medium voltage switchgear equipment is mainly made up of parts such as cabinet, the main bus-bar being arranged on cabinet, circuit breaker cart, transformer, earthed switch, high tension cables, circuit breaker cart bottom in cabinet is provided with handcart advancing mechanism, manual operation handcart advancing mechanism closes a floodgate after circuit breaker cart is pushed into operating position from testing position, or after separating brake, from operating position, circuit breaker cart is pushed back to testing position.When circuit breaker cart is pushed into operating position by handcart advancing mechanism, valve moves, and exposes the static contact being arranged in contact box, it is achieved with contacting of moving contact of breaker.Owing to grounding switch main shaft is arranged in cabinet, therefore it is provided with an earthed switch handle hole at the tank bracket place of cabinet, it is arranged on the operation axle of the earthed switch in tank bracket to be connected with the grounding switch main shaft in cabinet, when earthed switch operation handle is inserted on earthed switch operation axle through the handle hole on tank bracket, the breaking-closing operating of earthed switch can be carried out.Valve, isolation switch are at closure state, and namely switchgear is in charging operation process, and earthed switch still can be operated handle and be inserted on earthed switch main operation axle to carry out imperative operation, there is potential safety hazard by operator.After earthed switch closes, isolation switch can also be operated, and isolation switchs and lacks corresponding interlock between earthed switch, it is easy to cause maloperation.Existing also have some switch cubicles with interlock, but is mostly the switch cubicle for three-phase lateral arrangement.The switch cubicle that three-phase is longitudinally arranged, has the advantages such as compact conformation due to it, becomes new developing direction, but, existing interlock is not suitable for the switch cubicle that three-phase is longitudinally arranged.
Summary of the invention
The purpose of this utility model is to provide the interlock of a kind of valve and earthed switch, is longitudinally arranged in switch cubicle between valve, earthed switch not have interlock, easily causes the technical problem of maloperation and potential safety hazard to solve existing three-phase.
nullIn order to realize object above，This utility model valve is as follows with the technical scheme of the interlock of earthed switch: the interlock of valve and earthed switch，Including cabinet、Rotate the interlock plate being located on cabinet、For transmitting the drive mechanism of the motion of valve、Bent plate and the earthed switch operation axle extended in left-right direction，Described earthed switch operation axle is provided with locking plate，Described drive mechanism includes the power transmission shaft extended along the longitudinal direction，The driving member that power transmission shaft is provided with baffle plate and the one end with interlock plate is in transmission connection，The other end of interlock plate is provided with dead bolt，The pivot center of interlock plate is parallel with the axis of power transmission shaft，Described bent plate be provided with snap close and for for operational grounding switching manipulation axle manipulator's handle axially through by mouth，It is in closure state at valve，The dead bolt of interlock plate is spacing with described snap close to be coordinated to stop that bent plate moves downward，Bent plate blocks the earthed switch handle hole being located on cabinet，It is in open mode at valve，Interlock plate rotates to release spacing to bent plate towards the opposite direction of described drive axis under the driving of power transmission shaft，Bent plate moves downward and makes thereon to stagger up and down to expose described earthed switch handle hole by mouth and earthed switch handle hole，Locking plate operates at earthed switch can be spacing to the baffle plate block on described power transmission shaft under axle rotates.
Described drive mechanism includes power input mechanism, and power input mechanism includes driver plate, and described power transmission shaft is provided with input connecting lever, and driver plate and described input connecting lever are articulated and connected.
Described driver plate rotate be arranged on cabinet, the pivot center of described driver plate extends along the longitudinal direction, and described driver plate is provided with elongated slot, described input connecting lever be provided with in described elongated slot slide sliding part.
Described power input mechanism is cam mechanism, and described power input mechanism also includes power input, and power input and driver plate are in transmission connection, and in the early stage of valve Guan Bi, driver plate does not rotate, and in the later stage of valve Guan Bi, driver plate rotates.
Described power input is gear, and described cam mechanism is made up of described gear and described driver plate, the gear face of described gear is provided with cam path, described driver plate is provided with shipping and reselling on another market in described cam path.
Described cam path is the cannelure of non-closed, and described cam path, by waiting arc groove and the arc groove two parts such as non-to constitute, is in the early stage of Guan Bi at valve, described in ship and resell on another market and be positioned at described arc groove of Denging.
Described power transmission shaft is provided with output toggle arm, and described driving member is formed by output toggle arm, and described interlock plate is provided with elongated hole, and the end of described connecting lever is provided with the pin being inserted in described elongated hole.
Described interlock plate includes jam plate body, and dead bolt is formed by the link plate being convexly equipped on jam plate body, and described link plate extends forward or extends back.
Described bent plate includes transverse plate, longitudinal plate, described transverse plate extends in left-right direction, and described longitudinal plate extends along the longitudinal direction, described is arranged on longitudinal plate by mouth, snap close is formed by the buckle being located on transverse plate, and the bearing of trend of described buckle is contrary with the bearing of trend of described link plate.
Described cabinet is provided with for being in, at valve, the spacing bearing pin that closure state is spacing to described interlock plate spline.
The beneficial effects of the utility model: the interlock of this utility model valve and earthed switch, keeping apart pass combined floodgate, valve open mode, interlock plate is to bent plate locking, interlock plate shelters from the earthed switch handle hole being located on cabinet, realize keeping apart pass "on" position, the operation to earthing switch blade can not be carried out, it is prevented that on-load closes ground cutter；After valve is closed, interlock plate releases the locking to bent plate, and the earthed switch handle hole on cabinet exposes, it is possible to ground connection switching manipulation axle is operated, carries out the closing operation of earthing switch blade.After grounding switch closes a floodgate, the locking plate on earthed switch operation axle is to power transmission shaft locking, it is achieved after grounding switch closes a floodgate, it is impossible to carry out the isolated operation of isolation switch.The Interlock Reliability of interlock of the present utility model is high, and safety is also high.
Accompanying drawing explanation
Fig. 1 is the structural representation (state one) of this utility model valve and the interlock embodiment of earthed switch；
Fig. 2 is the structural representation (state two) of this utility model valve and the interlock embodiment of earthed switch；
Fig. 3 is the structural representation (state three) of this utility model valve and the interlock embodiment of earthed switch；
Fig. 4 is the structural representation (state four) of this utility model valve and the interlock embodiment of earthed switch.
Detailed description of the invention
The embodiment of the interlock of this utility model valve and earthed switch: as Figure 1-4, the interlock of valve and earthed switch includes cabinet, rotate the interlock plate 8 being located on cabinet, for transmitting the drive mechanism of the motion of valve, bent plate 11 and the earthed switch operation axle 10 extended in left-right direction, earthed switch operation axle 10 is provided with locking plate 6, drive mechanism includes the power transmission shaft 4 extended along the longitudinal direction, the driving member that power transmission shaft 4 is provided with baffle plate 5 and the one end with interlock plate 8 is in transmission connection, the other end of interlock plate 8 is provided with dead bolt 14, the pivot center of interlock plate 8 is parallel with the axis of power transmission shaft 4.Bent plate 11 be provided with snap close 13 and for for operational grounding switching manipulation axle manipulator's handle axially through by mouth 12, it is in closure state at valve, the dead bolt 14 of interlock plate 8 is spacing with snap close 13 to be coordinated to stop that bent plate 11 moves downward, bent plate 11 blocks the earthed switch handle hole being located on cabinet, it is in open mode at valve, interlock plate 8 rotates to release spacing to bent plate 11 towards the opposite direction of drive axis under the driving of power transmission shaft 4, bent plate 11 moves downward and makes thereon to stagger up and down to expose earthed switch handle hole by mouth and earthed switch handle hole, locking plate 6 operates at earthed switch can be spacing to baffle plate 5 block on power transmission shaft 4 under axle rotates.
Drive mechanism includes power input mechanism, and power input mechanism includes driver plate 2, and power transmission shaft 4 is provided with input connecting lever 3, and driver plate 2 is articulated and connected with input connecting lever 3.Driver plate 2 rotates and is arranged on cabinet, and the pivot center of driver plate 2 extends along the longitudinal direction, and driver plate 2 is provided with elongated slot 21, and the sliding part that input connecting lever 2 is provided with in elongated slot to slide, sliding part is slidiing pin.Power input mechanism also includes power input, and power input and driver plate 2 are in transmission connection, and in the early stage of valve Guan Bi, driver plate 2 does not rotate, and in the later stage of valve Guan Bi, driver plate 2 rotates.Power input is gear 1, and cam mechanism is made up of gear 1 and driver plate 2, the gear face of gear 1 is provided with cam path 15, driver plate 2 is provided with shipping and reselling on another market in cam path.Cam path 15 is the cannelure of non-closed, and cam path 15, by waiting arc groove 152 and arc groove 151 two parts such as non-to constitute, is in the early stage of Guan Bi at valve, and shipping and reselling on another market 18 the arc groove such as is positioned at.
Power transmission shaft 4 is provided with output toggle arm 7, and driving member is formed by output toggle arm 7, and interlock plate 8 is provided with elongated hole, and the end of connecting lever 8 is provided with the pin being inserted in elongated hole.Interlock plate 8 includes jam plate body, and interlocking body is in tiltedly T-shaped, and it has rotation section, articulated section, lock part, and elongated hole is arranged on articulated section, and rotation section is arranged on cabinet by corresponding axis of rotation.Dead bolt 14 is formed by the link plate being convexly equipped on lock part, and link plate extends back.Cabinet is provided with for being in, at valve, the spacing bearing pin 9 that closure state is spacing to interlock plate 8 spline.Bent plate 11 includes transverse plate 16, longitudinal plate 17, and transverse plate 16 extends in left-right direction, and longitudinal plate 17 extends along the longitudinal direction, and snap close 13 is formed by the buckle being located on transverse plate 16, and the bearing of trend of buckle is contrary with the bearing of trend of link plate, extends forward.Being in closure state at valve, buckle is positioned at the top of link plate.It is arranged on longitudinal plate 17 by mouth 12.
When this interlock is specifically used in switch cubicle, following several processes:
As it is shown in figure 1, valve open mode, now bent plate blocks switching manipulation hole, ground, it is impossible to grounding switch is carried out closing operation.When firmly lower press-bending plate 11, interlock plate 8 will to rotating counterclockwise, and limited bearing pin 9 stops, unless interlock plate 8 or spacing bearing pin destroy, otherwise bent plate is interlocked plate 8 and stops and cannot move downward, and remains the state blocking earthed switch handle hole.Achieve valve open, when isolating combined floodgate, the function that grounding switch cannot operate, namely prevent on-load to close grounding switch.
As shown in Figure 2, when isolation switch separating brake, valve close, in early stage, its movement output passes to gear 1, and gear 1 is with cam path, the circular arcs such as an initial Duan Wei of cam curve, ship and resell on another market and 18 the arc groove 152 such as be positioned at, it is ensured that in the rotation process in this stage, driver plate 2 does not rotate, and power transmission shaft also cannot rotate, interlock plate 8 pins bent plate 11, makes earthed switch handle hole to open.
As shown in Figure 3, when the final stage (later stage) that two station disconnecting switch separating brakes, valve close, cam path curve on gear 1 is non-circular arc such as grade, ship and resell on another market and 18 be positioned at non-arc groove 151 of Denging, promotion driver plate 2 is rotated, drive power transmission shaft 4 to rotate, output toggle arm 7 on power transmission shaft 4 promotes interlock plate 8 to rotate clockwise, unlocking bent plate 11, bent plate 11 moves downward, and now can open earthed switch handle hole and be operated.Achieve only when valve closes (isolating two station separating brakes) completely, could operational grounding disconnecting link.
As shown in Figure 4, valve is closed, grounding switch closes state, and now earthed switch handle hole can be opened.Grounding switch is from being disconnected to the process of closing, and locking plate 6 rotates to an angle along with earthed switch operates axle 10, to baffle plate 5 locking, rotation axle will be made to rotate clockwise.Accordingly, the gear 1 being connected with power transmission shaft is without motion, it is achieved the interlocking to valve motion.Only when grounding switch is from closing disconnection, locking plate 6 rotates to an angle along with ground connection operates axle opposite direction, and baffle plate 5 will be unlocked by locking plate 6, and power transmission shaft 4 can rotate.Achieve only after grounding switch is opened, just can carry out isolated operation.
In other embodiments, drive mechanism can not include gear, and the outfan of valve motion is directly connected with driver plate, drives the driver plate that rotation is located on cabinet to rotate clockwise or rotate counterclockwise.In other embodiments, driver plate can being not provided with elongated slot, but arrange corresponding elongated slot on input connecting lever, simultaneously projection slidiing pin on driver plate, slidiing pin slides in elongated slot, to be in transmission connection.Wherein, elongated slot can be through elongated hole, it is possible to be not through blind elongated hole；Sliding part also can use slide block simultaneously.
In other embodiments, being in transmission connection between power transmission shaft and interlock plate, form also by other, such as gear drive, power transmission shaft arranges driving gear, what arrange the coaxial with interlock plate on interlock plate engages driven gear with driving gear, and under gear-driven driving, interlock plate makes the reciprocal rotation with drive axis.
In other embodiments, dead bolt on interlock plate can be configured as the latch extended to the left, bent plate is arranged the buckle in above-described embodiment also can, bent plate arranges the slot adaptive with latch and also may be used, it is in closure state at valve, latch insertion slot carries out spacing.
In other embodiments, power input may be used without cam, cam mechanism is made up of cam and matched driver plate, cam includes waiting arc section and the arc section such as non-, the outline of cam disclosure satisfy that valve is closed early stage, cam can not pass motion to driver plate, power transmission shaft does not rotate, it is about to close (later stage that valve is closed) at valve, under the driving of cam, driver plate passes motion to interlock plate, unlocks bent plate, realize when valve is of completely closed, could operational grounding disconnecting link.
Claims (10)
- null1. the interlock of valve and earthed switch，It is characterized in that: include cabinet、Rotate the interlock plate being located on cabinet、For transmitting the drive mechanism of the motion of valve、Bent plate and the earthed switch operation axle extended in left-right direction，Described earthed switch operation axle is provided with locking plate，Described drive mechanism includes the power transmission shaft extended along the longitudinal direction，The driving member that power transmission shaft is provided with baffle plate and the one end with interlock plate is in transmission connection，The other end of interlock plate is provided with dead bolt，The pivot center of interlock plate is parallel with the axis of power transmission shaft，Described bent plate be provided with snap close and for for operational grounding switching manipulation axle manipulator's handle axially through by mouth，It is in closure state at valve，The dead bolt of interlock plate is spacing with described snap close to be coordinated to stop that bent plate moves downward，Bent plate blocks the earthed switch handle hole being located on cabinet，It is in open mode at valve，Interlock plate rotates to release spacing to bent plate towards the opposite direction of described drive axis under the driving of power transmission shaft，Bent plate moves downward and makes thereon to stagger up and down to expose described earthed switch handle hole by mouth and earthed switch handle hole，Locking plate operates at earthed switch can be spacing to the baffle plate block on described power transmission shaft under axle rotates.
- 2. the interlock of valve according to claim 1 and earthed switch, it is characterized in that: described drive mechanism includes power input mechanism, power input mechanism includes driver plate, and described power transmission shaft is provided with input connecting lever, and driver plate and described input connecting lever are articulated and connected.
- 3. the interlock of valve according to claim 2 and earthed switch, it is characterized in that: described driver plate rotates and is arranged on cabinet, the pivot center of described driver plate extends along the longitudinal direction, described driver plate is provided with elongated slot, described input connecting lever be provided with in described elongated slot slide sliding part.
- 4. the interlock of the valve according to Claims 2 or 3 and earthed switch, it is characterized in that: described power input mechanism is cam mechanism, described power input mechanism also includes power input, power input and driver plate are in transmission connection, early stage in valve Guan Bi, driver plate does not rotate, and in the later stage of valve Guan Bi, driver plate rotates.
- 5. the interlock of valve according to claim 4 and earthed switch, it is characterized in that: described power input is gear, described cam mechanism is made up of described gear and described driver plate, the gear face of described gear is provided with cam path, described driver plate is provided with shipping and reselling on another market in described cam path.
- 6. the interlock of valve according to claim 5 and earthed switch, it is characterized in that: described cam path is the cannelure of non-closed, described cam path, by waiting arc groove and the arc groove two parts such as non-to constitute, is in the early stage of Guan Bi at valve, described in ship and resell on another market and be positioned at described arc groove of Denging.
- 7. the interlock of valve according to claim 1 and earthed switch, it is characterized in that: described power transmission shaft is provided with output toggle arm, described driving member is formed by output toggle arm, and described interlock plate is provided with elongated hole, and the end of described connecting lever is provided with the pin being inserted in described elongated hole.
- 8. the interlock of valve according to claim 1 and earthed switch, it is characterised in that: described interlock plate includes jam plate body, and dead bolt is formed by the link plate being convexly equipped on jam plate body, and described link plate extends forward or extends back.
- 9. the interlock of valve according to claim 8 and earthed switch, it is characterized in that: described bent plate includes transverse plate, longitudinal plate, described transverse plate extends in left-right direction, described longitudinal plate extends along the longitudinal direction, described it is arranged on longitudinal plate by mouth, snap close is formed by the buckle being located on transverse plate, and the bearing of trend of described buckle is contrary with the bearing of trend of described link plate.
- 10. the interlock of valve according to claim 9 and earthed switch, it is characterised in that: described cabinet is provided with for being in, at valve, the spacing bearing pin that closure state is spacing to described interlock plate spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520991189.5U CN205385239U (en) | 2015-12-03 | 2015-12-03 | Valve and earthing switch's interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520991189.5U CN205385239U (en) | 2015-12-03 | 2015-12-03 | Valve and earthing switch's interlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205385239U true CN205385239U (en) | 2016-07-13 |
Family
ID=56337605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520991189.5U Expired - Fee Related CN205385239U (en) | 2015-12-03 | 2015-12-03 | Valve and earthing switch's interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205385239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406386A (en) * | 2015-12-03 | 2016-03-16 | 平高集团有限公司 | Interlocking device of valve and grounding switch |
| CN111446640A (en) * | 2020-05-11 | 2020-07-24 | 黄笃莲 | Alternating-current high-power MW-level constant-temperature voltage-regulating automatic control plasma power supply |
-
2015
- 2015-12-03 CN CN201520991189.5U patent/CN205385239U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406386A (en) * | 2015-12-03 | 2016-03-16 | 平高集团有限公司 | Interlocking device of valve and grounding switch |
| CN111446640A (en) * | 2020-05-11 | 2020-07-24 | 黄笃莲 | Alternating-current high-power MW-level constant-temperature voltage-regulating automatic control plasma power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 |