CN106129882B - Switchgear and its valve locking mechanism - Google Patents
Switchgear and its valve locking mechanism Download PDFInfo
- Publication number
- CN106129882B CN106129882B CN201610721576.6A CN201610721576A CN106129882B CN 106129882 B CN106129882 B CN 106129882B CN 201610721576 A CN201610721576 A CN 201610721576A CN 106129882 B CN106129882 B CN 106129882B
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- China
- Prior art keywords
- plate
- guide
- arm
- valve
- slot
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Classifications
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- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to switchgear and its valve locking mechanisms.The switchgear of the present invention is in use, when pulling out maintenance in needing handcart by handcart room, pushing arm can spring back under the effect of the return of elastic component and drive the clamping portion on movable part to lock the action of connecting plate relative to the clamping portion in fixed seat guiding movement to the limiting slot being caught on connecting plate, being caught in limiting slot and can avoid valve when service personnel touches valve mechanism and open.Simultaneously, during handcart is pushed back to handcart room after maintenance, pushing arm is first moved by handcart pushing tow and drives the clamping portion on movable part relative to fixed seat guiding movement to by deviating from limiting slot, the self-locking state of valve is released from this time, and connecting plate can be pushed to control the normal keying of valve by continuing to press on handcart.
Description
Technical field
The present invention relates to switchgear and its valve locking mechanisms.
Background technology
In electric system product, high-tension switch cabinet is one type important equipment.The moving contact of breaker in switchgear
On handcart, static contact is mounted in switchgear and is connect with high-tension line, is realized using the propulsion or pull-out of handcart dynamic
Connecting or disconnecting for contact and static contact, realizes the connection and disconnection of circuit.Since static contact is normal live end, to prevent from repairing
Personnel accidentally touch static contact when overhauling circuit and jeopardize the personal safety of maintenance personal, on the fixing bracket of switchgear
The valve between high pressure basement and mesohigh outlet room is positioned to block electrification static contact and carry out security protection.Valve
It is linked by transmission mechanism and handcart, controlling valve by pushing tow connecting plate when handcart promotes opens, pushing tow connecting plate when handcart pulls out
Valve is set to close.When valve is closed, to prevent upper and lower valve from being opened because of maloperation, need the upper lower plate hand of valve or so
Dynamic locking is to prevent valve from opening.But sometimes service personnel is easily careless and inadvertent and forget manual locking valve, this can cause to touch
The generation of electric safety accident.
Invention content
The purpose of the present invention is to provide one kind when handcart promotes, and valve energy normally opens, can be by work when handcart pulls out
Door is locked in closed state to block the switchgear of electrification static contact；The present invention also aims to provide in above-mentioned switchgear
The valve locking mechanism used.
To achieve the above object, the technical solution of valve locking mechanism of the present invention is：
Valve locking mechanism includes the connecting plate for driving valve to open and close, further includes being fixed for the cabinet with switchgear
The fixed seat of setting, the movable part being arranged in fixed seat to guiding movement and the driving portion for driving movable part to move
Point, connecting plate be equipped with limiting slot, movable part include can be caught in the limiting slot with by valve locking in off position or by
Abjection is so that the clamping portion that valve energy freely opens and closes in limiting slot；Drive part includes that both ends are hingedly connected to fixed seat and activity
Linking arm on part and the pushing arm being fixedly installed on linking arm, when handcart is pushed into the right, pushing arm is pushed by handcart
And linking arm is driven to be rotated around the hinge axes of itself and fixed seat to drive clamping portion to move downward by limiting slot, it is living
Door locking mechanism further includes for driving pushing arm return when handcart pulls out to the left to drive clamping portion to move right to being caught in
Elastic component in the limiting slot.
The fixed seat includes upper and lower spaced upper clamp plate and lower clamp plate, and the gap between the upper and the lower plywood, which is formed, to be supplied
The movable part is along the guiding clearance of its guiding movement.
The pushing arm is fixed at linking arm one end, and the end set of the close pushing arm of linking arm has for the first hinge
Spindle is installed so that the respective end of linking arm to be hinged on to the first hinge hole in fixed seat, the end of the separate pushing arm of linking arm
Portion, which is offered, to be installed for the second articulated shaft the other end of linking arm to be hinged on to the second hinge hole on movable part, the second hinge
It is slot hole to connect hole.
The linking arm forms connecting lever shape together with pushing arm.
The connecting plate includes upper plate and lower plate, and limiting slot includes the upper limit position groove being set on upper plate and is set to
Lower limit slot on lower plate, clamping portion include spaced upper clamping portion for being caught in upper limit position groove and being used for up and down
It is caught in the lower clamping portion in lower limit slot.
The technical solution of switchgear of the present invention is：
Switchgear includes the valve of cabinet and installation on the cabinet, further includes valve locking mechanism, valve locking mechanism packet
The fixed seat for including connecting plate and the cabinet fixed setting for driving valve to open and close, the work being arranged in fixed seat to guiding movement
Dynamic part and the drive part for driving movable part movement, connecting plate are equipped with limiting slot, and movable part includes that can be caught in institute
It states in limiting slot to lock valve in off position or by deviating from so that the clamping portion that valve energy freely opens and closes in limiting slot；It drives
Dynamic part includes the linking arm that both ends are hingedly connected on fixed seat and movable part and the pushing tow being fixedly installed on linking arm
Arm, when handcart is pushed into the right pushing arm by handcart push and drive linking arm around the hinge axes of itself and fixed seat rotate with
Clamping portion is driven to move downward by limiting slot, valve locking mechanism further includes for being driven when handcart pulls out to the left
Pushing arm return is to drive clamping portion to move right to the elastic component being caught in the limiting slot.
The fixed seat includes upper and lower spaced upper clamp plate and lower clamp plate, and the gap between the upper and the lower plywood, which is formed, to be supplied
The movable part is along the guiding clearance of its guiding movement.
The pushing arm is fixed at linking arm one end, and the end set of the close pushing arm of linking arm has for the first hinge
Spindle is installed so that the respective end of linking arm to be hinged on to the first hinge hole in fixed seat, the end of the separate pushing arm of linking arm
Portion, which is offered, to be installed for the second articulated shaft the other end of linking arm to be hinged on to the second hinge hole on movable part, the second hinge
It is slot hole to connect hole.
The linking arm forms connecting lever shape together with pushing arm.
The connecting plate includes upper plate and lower plate, and limiting slot includes the upper limit position groove being set on upper plate and is set to
Lower limit slot on lower plate, clamping portion include spaced upper clamping portion for being caught in upper limit position groove and being used for up and down
It is caught in the lower clamping portion in lower limit slot.
The beneficial effects of the invention are as follows：The switchgear of the present invention in use, when needing handcart by handcart room
When pulling out maintenance, pushing arm can spring back under the effect of the return of elastic component and drive the clamping portion on movable part relative to fixation
To being caught in the limiting slot on connecting plate, the action of connecting plate is locked and be can avoid seat guiding movement by the clamping portion being caught in limiting slot
Valve is opened when service personnel touches valve mechanism.Meanwhile during handcart is pushed back to handcart room after maintenance, top
Push arm is first moved by handcart pushing tow and drives the clamping portion on movable part relative to fixed seat guiding movement to by limiting slot
Middle abjection, at this time the self-locking state of valve be released from, connecting plate can be pushed to control the normal keying of valve by continuing to press on handcart.
Description of the drawings
Fig. 1 is that one embodiment of the locking mechanism of the present invention is in the structural schematic diagram under self-locking state；
Fig. 2 is the vertical view of Fig. 1.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the switchgear of the present invention, as shown in Figure 1 to Figure 2, including cabinet 8 and valve locking mechanism, it is living
Door locking mechanism includes upper plate 1 and the lower plate 2 being set on cabinet 8 to drive valve to open and close, and further includes in handcart by hand
For locking upper and lower connecting plate so that valve is locked in closed state and is released after handcart is pushed into handcart room when being pulled out in car room
To the locking structure of the lock-out state of upper and lower connecting plate.Locking structure includes the fixed seat 3 being fixed on cabinet 8, is oriented to and moves
Guide-rail plate 4 in fixed seat is set dynamicly（That is movable part）And for driving guide-rail plate 4 along the work of 3 guiding movement of fixed seat
Movable plate 5.
The plate face of guide-rail plate 4 extends along the horizontal plane, and the right side central of guide-rail plate 4 offers U-shaped the opening of upper and lower directions perforation
Mouth slot 43, U-shaped opening slot 43 makes the right side of guide-rail plate 4 form two parts that time interval is arranged, and rear section is bent up
It rolls over and forms upper guide plate 41, front part bends downward and forms lower guide plate 42.
Upper plate 1 and the left end of lower plate 2 are articulated on the main shaft extended along the longitudinal direction, and upper plate 1 is located at lower company
The front of plate 2 is set with second spring 72 on main shaft between upper plate 1 and lower plate 2, and the both ends of second spring 72 are pushed up respectively
The two sides for pressing upper plate 1 opposite with lower plate 2.The left end of upper and lower connecting plate is equipped with by push plate institute's pushing tow on handcart and drives
The left end of the upper plate axis 11 and lower plate axis 21 that dynamic valve opens and closes, upper plate 1 offers opening towards a left side for upper guide plate 41
Right end the upper limit position groove 12 that is caught in of clamping portion, the left end of lower plate 2 offers the right side of the opening towards a left side for lower guide plate 42
The lower limit slot 22 that the clamping portion at end is caught in.Upper limit position groove 12 and about 22 arranged for interval of lower limit slot, and upper and lower limit slot exists
The groove width of upper and lower directions is more than the thickness of corresponding upper and lower rails plate in above-below direction.
Fixed seat 3 includes the fixed plate 33 vertically extended being fixedly installed relative to cabinet 8, prolongs along the longitudinal direction
The upper clamp plate 32 stretched and the lower clamp plate extended along the longitudinal direction 31, lower clamp plate 31 are located at the downside of upper clamp plate 32 and between the two
Gap forms the guide-rail plate accommodating cavity stretched into for the left end of guide-rail plate 4, and upper clamp plate 32, which is bolted, is set to fixed plate
33 left side.
Movable plate 5 includes specifically including linking arm 51 and pushing arm 52, linking arm 51 is along the longitudinal direction substantially at connecting lever shape
Extend, the pushing arm 52 for being connected to 51 rear end of linking arm extends in left-right direction and its right end is directed away from 33 place side of fixed plate
（Increase locking mechanism floor space side）Stretching, extension.The rear end of linking arm 51（Namely outside the connection of linking arm 51 and pushing arm 52）
It is articulated on upper clamp plate 32 by the first articulated shaft 61 vertically extended, the rear end of correspondingly connected arm 51 offers confession
The first hinge hole that first articulated shaft 61 installs.The front end of linking arm 51 offers the first slot hole 53, vertically extends
Second articulated shaft 62 passes through the left end of the slot hole and guide-rail plate 4 the front end of linking arm 51 to be articulated on guide-rail plate 4, and at this time the
One slot hole 53 forms the second hinge hole installed for the second articulated shaft.It is connected between the front end and upper clamp plate 32 of linking arm 51
First spring 71.It is moved to ensure that guide-rail plate 4 can be in left-right direction oriented to therewith when linking arm 51 is rotated around the first articulated shaft 61
It is dynamic, offer the second slot hole 34 for passing through and capable of being moved in left-right direction in for the second articulated shaft 62 on upper clamp plate 32, second
Distance of the length of slot hole 34 not less than the guiding movement in left-right direction of guide-rail plate 4.
Fig. 1 and Fig. 2 shows be switchgear handcart by handcart room pull out after locking mechanism be under self-locking state
Structural schematic diagram, when handcart is pushed into handcart room to the right by left end, push plate in handcart push the right end of pushing arm 52 with
First articulated shaft 61 rotates counterclockwise for pivot center（Rotated towards direction shown in arrow in figure）, at this time before linking arm 51
End can move downward and drive guide-rail plate 4 to move downward by the second articulated shaft 62, while be set to linking arm 51 and upper clamp plate
The first spring 71 between 32（That is elastic component）It can be stretched and deform upon.After handcart is advanced to setting position, upper rail
Plate 51 and the right end of lower guide plate 52 make upper plate 1 and lower plate by completely out in upper limit position groove 12 and lower limit slot 22
2 are unlocked by self-locking state, and upper and lower connecting plate can be driven by handcart and take corresponding actions to drive valve to open at this time, thus
Handcart continues to promote the connection that dynamic and static contact can be realized and realizes the conduction of switchgear.
When handcart pulls out from right to left, the push plate on handcart releases the pushing tow to pushing arm 52, and linking arm 51 is first
It is rotated clockwise for center of rotation with the first articulated shaft 61 under the return active force of spring 71, guide-rail plate 4 is in the second articulated shaft 62
Drive under move right to its right end and be caught in lock upper plate 1 and lower plate 2 in corresponding limiting slot, it is locked
Upper and lower connecting plate cannot move and play the role of valve locking in closed state, while pushing arm 52 can be with linking arm 51
It is clockwise to and replys home position to be prepared by handcart pushing tow to be next.In other embodiments, the first spring may be used also
To be set between linking arm and cabinet or between pushing arm and cabinet；Certainly, the first spring can also be arranged at connection
Compressed spring between arm and the left end of upper clamp plate 32 replaces.In the case of not needing valve self-locking, valve locking mechanism is used
Lock locking.
In other embodiments：The movable plate of connecting lever shape can also other can be by handcart pushing tow so as to lead by straight-arm etc. at this time
Rail plate is replaced with the heterodromous drive part of handcart, as long as linking arm is made to be arranged i.e. in "-" type in the same direction with pushing arm
It can；Upper clamp plate can also be saved, but male part or inner fovea part are set on the upper surface of lower clamp plate, in the lower end of guide-rail plate
Setting and male part/inner fovea part shape adaptation and the guiding shifting that guide rail therein can be caught in realize guide-rail plate along fixed seat on face
It is dynamic；To realize that the first hinge hole along the guiding movement of fixed seat, can also be made slot hole by guide-rail plate, the second hinge hole make with
The hinge hole that second articulated shaft geomery is adapted to so that by the front end of linking arm can only along hinge axes rotate and cannot phase
Second articulated shaft is articulated on guide-rail plate with moving along the extending direction of linking arm.
The embodiment of valve locking mechanism：
The specific knot of valve locking mechanism in the concrete structure of valve locking mechanism and the embodiment of switchgear of the present invention
Structure is identical, specifically refers to Fig. 1 to Fig. 2, this will not be detailed here.
Claims (6)
1. valve locking mechanism includes the connecting plate for driving valve to open and close, it is characterised in that：Further include for switchgear
The fixed seat of cabinet fixed setting, the guide-rail plate being arranged in fixed seat to guiding movement and the drive for driving guide-rail plate to move
Dynamic part, the connecting plate includes upper plate and lower plate, and upper and lower limit slot, the plate of guide-rail plate are respectively arranged on upper and lower connecting plate
Face extends along the horizontal plane, and left side and the fixed seat guiding movement of guide-rail plate coordinate, and the right side central of guide-rail plate offers upper and lower
To the U-shaped opening slot of perforation, U-shaped opening slot makes two parts that time interval setting is formd on the right side of guide-rail plate, and rear lateral portion
It point is folded upward at and forms upper guide plate, front part is bent downward and forms lower guide plate, the right end of upper and lower rails plate
Be respectively equipped with can be caught in the upper and lower limit slot with by valve locking in off position or by upper and lower limit slot deviate from
Make the upper and lower clamping portion that valve energy freely opens and closes；Drive part includes that both ends are hingedly connected to fixed seat and the company on guide-rail plate
The pushing arm for connecing arm and being fixedly installed on linking arm, when handcart is pushed into the right, pushing arm is pushed by handcart and drives connection
Arm is rotated around the hinge axes of itself and fixed seat to drive clamping portion to move downward by limiting slot, valve locking mechanism
Further include for driving pushing arm return when handcart pulls out to the left to drive clamping portion to move right to being caught in the limiting slot
In elastic component, the upper and lower limit slot is respectively the rectangular straight slot extended along the thickness direction of upper and lower connecting plate, and upper and lower limit
Position slot is open to the left, and the fixed seat includes upper and lower spaced upper clamp plate and lower clamp plate, the gap between the upper and the lower plywood
It is formed for the guide-rail plate along the guiding clearance of its guiding movement.
2. valve locking mechanism according to claim 1, it is characterised in that：The pushing arm is fixed at linking arm one
End, the end set of the close pushing arm of linking arm, which has, to be installed for the first articulated shaft the respective end of linking arm to be hinged on admittedly
The first hinge hole in reservation, the end of the separate pushing arm of linking arm, which is offered, to be installed for the second articulated shaft with by linking arm
The other end is hinged on the second hinge hole on guide-rail plate, and the second hinge hole is slot hole.
3. valve locking mechanism according to claim 2, it is characterised in that：The linking arm is formed together with pushing arm and is turned
Arm shape.
4. switchgear includes the valve of cabinet and installation on the cabinet, it is characterised in that：Further include valve locking mechanism, valve
Locking mechanism includes the fixed seat of the connecting plate and cabinet fixed setting for driving valve to open and close, is arranged to guiding movement solid
Guide-rail plate in reservation and the drive part for driving guide-rail plate to move, the connecting plate include upper plate and lower plate, above and below
Upper and lower limit slot is respectively arranged on connecting plate, the plate face of guide-rail plate extends along the horizontal plane, and left side and the fixed seat of guide-rail plate are oriented to
Mobile cooperation, the right side central of guide-rail plate offer the U-shaped opening slot of upper and lower directions perforation, and U-shaped opening slot makes the right side of guide-rail plate
Side forms two parts of time interval setting, and rear section is folded upward at and to form upper guide plate, front part downward
It bends and forms lower guide plate, the right end of upper and lower rails plate, which is respectively equipped with, can be caught in the upper and lower limit slot with by valve
Locking in upper and lower limit slot in off position or by deviating from so that the upper and lower clamping portion that valve energy freely opens and closes；Driving portion subpackage
Include the linking arm that both ends are hingedly connected on fixed seat and guide-rail plate and the pushing arm being fixedly installed on linking arm, when handcart to
Pushing arm is pushed by handcart and linking arm is driven to be rotated around the hinge axes of itself and fixed seat to drive clamping portion when right push-in
It moves downward by limiting slot, valve locking mechanism further includes for driving pushing arm return when handcart pulls out to the left
To drive clamping portion to move right to the elastic component being caught in the limiting slot, the upper and lower limit slot is respectively along connecting above and below
The rectangular straight slot that the thickness direction of plate extends, and upper and lower limit slot is open to the left, the fixed seat includes between the upper and lower every setting
Upper clamp plate and lower clamp plate, the gap between the upper and the lower plywood is formed for the guide-rail plate along the guiding clearance of its guiding movement.
5. switchgear according to claim 4, it is characterised in that：The pushing arm is fixed at linking arm one end, even
The end set for connecing the close pushing arm of arm has and is installed for the first articulated shaft the respective end of linking arm is hinged on fixed seat
On the first hinge hole, the end of the separate pushing arm of linking arm, which is offered, to be installed for the second articulated shaft with by the another of linking arm
End is hinged on the second hinge hole on guide-rail plate, and the second hinge hole is slot hole.
6. switchgear according to claim 5, it is characterised in that：The linking arm forms connecting lever shape together with pushing arm
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610721576.6A CN106129882B (en) | 2016-08-25 | 2016-08-25 | Switchgear and its valve locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610721576.6A CN106129882B (en) | 2016-08-25 | 2016-08-25 | Switchgear and its valve locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106129882A CN106129882A (en) | 2016-11-16 |
| CN106129882B true CN106129882B (en) | 2018-10-30 |
Family
ID=57274561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610721576.6A Active CN106129882B (en) | 2016-08-25 | 2016-08-25 | Switchgear and its valve locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106129882B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631204B (en) * | 2018-07-18 | 2024-01-19 | 上海西门子开关有限公司 | Self-locking device for valve mechanism of switch cabinet and switch cabinet |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201846002U (en) * | 2010-09-27 | 2011-05-25 | 温州兴机电器有限公司 | Valve self-locking device for switch cabinet |
| CN203039277U (en) * | 2012-12-23 | 2013-07-03 | 温州市裕丰电器有限公司 | Valve self-locking mechanism of centrally-mounted switch cabinet |
| CN203645218U (en) * | 2013-12-06 | 2014-06-11 | 北京北开电气股份有限公司 | Novel self-locking device of switch cabinet valve |
| CN205377143U (en) * | 2016-01-19 | 2016-07-06 | 江苏华冠电器集团有限公司 | Handcart room door interlocking device |
| CN205335723U (en) * | 2016-01-27 | 2016-06-22 | 温州华港电气有限公司 | Take side of auto -lock to link board device |
| CN105762694A (en) * | 2016-05-12 | 2016-07-13 | 山东泰开成套电器有限公司 | Valve locking device for armored withdrawable switch cabinet |
| CN205985911U (en) * | 2016-08-25 | 2017-02-22 | 河南森源电气股份有限公司 | Cubical switchboard and valve locking mechanical system thereof |
-
2016
- 2016-08-25 CN CN201610721576.6A patent/CN106129882B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106129882A (en) | 2016-11-16 |
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