CN207611712U - The interlock system of earthing switch for electrical cabinet - Google Patents
The interlock system of earthing switch for electrical cabinet Download PDFInfo
- Publication number
- CN207611712U CN207611712U CN201720988957.0U CN201720988957U CN207611712U CN 207611712 U CN207611712 U CN 207611712U CN 201720988957 U CN201720988957 U CN 201720988957U CN 207611712 U CN207611712 U CN 207611712U
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- Prior art keywords
- door
- handleset
- interlock system
- blocking lever
- section
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Abstract
A kind of interlock system of earthing switch for electrical cabinet, including：Handleset is mounted on shell for electric cabinet, can move between the first position and the second position, prevents actuator from being inserted into wherein covering drive hole in first position Handleset, and expose drive hole in second position Handleset；Interlocking component, it is arranged between Handleset and door, and it can move between locked and unlocked positions, wherein it is free to move to the second position from first position in unlocked position Handleset, the wherein described interlocking component is by elastic component towards latched position bias, wherein the closure of door pushes blocking lever that it is made to move to unlocked position from latched position, the opening of door enable interlocking component under elastic component bias free movement to latched position.Additionally provide a kind of electrical cabinet including interlock system.The utility model provides a kind of reliable interlock system so that electrical system is safer.
Description
Technical field
The utility model is related to a kind of interlock systems, and a kind of particularly interlocking of earthing switch for electrical cabinet
System, and further relate to a kind of electrical cabinet including such interlock system.
Background technology
In general, electrical cabinet is provided with earthing switch, for the main body of electrical cabinet to be grounded.Existing electrical cabinet is rear
Door can disconnect the earthing switch of electrical cabinet when opening, and lose protection to staff, lead to danger.Therefore exist for more
Have the needs of the electrical cabinet of safety.
Utility model content
In order to provide a kind of safer electrical cabinet, it is proposed that the utility model.A kind of earthing switch for electrical cabinet
Interlock system, the electrical cabinet includes the door of shell and facility on shell, and the earthing switch can be by by actuator
The drive hole being inserted on shell is driven and is disconnected, which is characterized in that the interlock system includes：Handleset is mounted on
It on shell for electric cabinet, can move, be driven wherein being covered in first position Handleset between the first position and the second position
Hole prevents actuator from being inserted into, and exposes drive hole in second position Handleset；Interlocking component, setting in Handleset and
It between door, and can move between locked and unlocked positions, wherein being free to from the in unlocked position Handleset
One position moves to the second position, is locked against from first position in latched position Handleset and moves to the second position,
For the wherein described interlocking component by elastic component towards latched position bias, the wherein closure of door pushes blocking lever to make it from locking bit
Set and move to unlocked position, the opening of door enable interlocking component under elastic component bias free movement to latched position.
Above-mentioned interlock system so that when the door closes, Men Huiding makes it be moved into unlocked position to interlocking mechanism.If
Door is not turned off, and under the action of resetting spring, interlocking mechanism moves to latched position, and it is disconnected to be unable to operational grounding switch at this time
It opens, realizes reliable security function.
Preferably, interlocking component includes the blocking lever being arranged between handle component and door.Blocking lever can contribute to reality
Existing simple and reliable interlock.
Preferably, blocking lever is two-part, includes the second section of the first section and close Handleset close to door, the
One section and the second section are independent of one another, and when door is closed, and the closure of door actuates the first section, so by the first section and
Abutting between the second section and actuate the second section so that blocking lever enters unlocked position.Such structure makes blocking lever
Each section is shorter, it is not easy to deform, and be easier reliably to reset under elastic component effect；And it can be effective
It eliminates because processing and assembling the error brought, ensures the reliable realization of interlocking.
Preferably, blocking lever is provided with interlock plate close to the at one end of Handleset, and perforation is provided on interlock plate, wherein
Handleset includes the disk for being fixed to handle on handle and case inside in hull outside and rotating with it, the wherein disk
On be provided with locking pin, when interlocking component is in the unlocked position, locking pin is aligned with perforation so that Handleset can be free
Ground moves to the second position from first position.
Above-mentioned interlock system so that when the door closes Men Huiding to blocking lever makes its movement, to drive interlock plate to move,
So that the perforation on interlock plate can be directed at interlocking latch, into unlocked position.If door is not turned off, in the effect of resetting spring
Under, blocking lever is moved towards latched position, the perforation on interlocking latch misalignment interlock plate, and it is disconnected to be unable to operational grounding switch at this time
It opens, realizes security function.
Preferably, Handleset includes being fixed to handle on the handle and case inside in hull outside and therewith revolving
The disk turned, wherein the disk described in latched position interlocking rod lock, prevents it from rotating, so that Handleset cannot be from first
Position moves to the second position.
Preferably, at least the second section is provided with the elastic component.Preferably, both the first section and the second section point
Elastic member is not set.
To the double rod linkage scheme of interlock system, two bar individual resets can effectively reduce Zona transformans since pole shortens
That comes is not easy to reset.
Preferably, the door is arranged on the frame of shell, and blocking lever passes through the hole on frame to stretch out to be closed in door
Shi Yumen coordinates, and the interlocking component further includes support element, is used to support and keeps blocking lever, and allows blocking lever vertical along it
It is slided to direction.Preferably, support element at least two.It is that a hole is opened on frame to be commonly designed, as fulcrum, Ci Zhongfang
The advantages of method, is that cost is relatively low, but the disadvantage is that connecting rod can be fallen into cabinet because of misoperation, makes interlock fault.The utility model
In addition support element is set, even if connecting rod is headed into cabinet, will not fall, to realize more reliable interlocking.
Preferably, the support element is arranged in inner walls, and includes the hole for keeping blocking lever or recess portion.It is preferred that
Ground, the hole on frame is not used as the fulcrum of blocking lever, and its size is more than the size of blocking lever.Since trepanning is larger, even if even
Bar is headed into cabinet, also can under the action of resetting spring automatic spring.
Preferably, the door is the back door of electrical cabinet.Preferably, the electrical cabinet is Medium Voltage Switchgear.
On the other hand, the invention also discloses a kind of electrical cabinets, including shell, the door being arranged on shell, control
The earthing switch of frame ground state, and the interlock system as described in aforementioned any one.
Description of the drawings
Above and other feature and advantage of the utility model will through the following detailed description taken in conjunction with the accompanying drawings become more
Add apparent, and the following description and drawings being given for example only property purpose, rather than limits the utility model in any way
Range, wherein：
Fig. 1 shows the earthing switch and its drive system for electrical cabinet；
Fig. 2 shows the schematic illustrations of the interlock assembly of one embodiment according to the present utility model；
Fig. 3 shows the schematic illustration of another embodiment of blocking lever；
Fig. 4 shows the structure of the interlock plate of one embodiment according to the present utility model；
Fig. 5 shows the interlock plate of embodiment according to the present utility model and the cooperation schematic diagram of locking pin；
Fig. 6 shows the cooperation of the blocking lever and door of one embodiment according to the present utility model；And
Fig. 7 shows the cooperation of blocking lever 2 and electrical cabinet side plate.
Specific implementation mode
Aforementioned and other technology contents, feature and technique effect in relation to the utility model, in following cooperation refer to the attached drawing
To can clearly be presented in the detailed description of embodiment.It should be noted that direction term mentioned herein, such as
Up, down, left, right, before and after, clockwise, counterclockwise etc., are only the directions of refer to the attached drawing.Therefore, the direction term used is to use
To illustrate not to be used for limiting the utility model.The description of " first " and its variant is used for the purpose of distinguishing each component, and unlimited
The scope of the utility model processed, in the case where not departing from the scope of the utility model, " first component " can be written as " second
Part " etc..In addition, in whole embodiments, identical reference numeral indicates same or analogous element.
Fig. 1 shows the earthing switch 11 and its drive system for electrical cabinet.Earthing switch control shell for electric cabinet connects
Ground state.As shown, drive system includes connecting lever 12, connecting rod 13, lead screw 14, nut 15 and operation rocking handle 16.14 He of lead screw
Nut 15 is arranged in shell for electric cabinet, and cooperates and the rotational action that rocking handle 16 inputs is changed into the linear fortune of lead screw
It is dynamic.Lead screw 14 is coupled to drive rod 13, and lead screw 14 is connected to connecting lever 12 by connecting rod 13.Connecting lever 12 is connected to earthing switch 11.
Handle hole is provided on shell for electric cabinet.The handle that the handle hole can be rotationally disposed on shell is hindered
Gear.When needing to operate driving switch, user pulls out rotating handle, and rotates counterclockwise 45 degree of angles, to expose
Handle hole.Then, operation rocking handle 16 is inserted into the handle hole on shell for electric cabinet, and user can be along side clockwise
To rotation process rocking handle 16.The nut 15 that the rotation driving of operation rocking handle 16 is arranged in shell for electric cabinet.The rotation of nut 15
The rotational action that rocking handle 16 inputs is changed into the linear movement of lead screw 14 by the way that lead screw 14 and nut 15 cooperate.Lead screw
14 linear movement is transmitted to the connecting lever 12 of earthing switch by connecting rod 13, to change the on off state of earthing switch 11.
Rocking handle 16 rotates clockwise about 12 circles to which earthing switch 11 to be closed in the present embodiment.On the contrary, being opened in ground connection
In the case of closing 11 closures, rocking handle 16 is rotated to 12 circles in the counterclockwise direction, earthing switch 11 will be made to disconnect.
It is appreciated that referred in discussed above it is clockwise be closed, disconnect counterclockwise it is not necessary to, earthing switch
Relationship between open and close and the direction of rotation of rocking handle can change.In embodiment, exposing the mode of handle hole is
The rotation of handle, but this it is not necessary to, in other embodiments, sliding that can be by handle panel or other movements
Come exposed handle hole.
Fig. 2 shows the schematic illustrations of the interlock assembly of one embodiment according to the present utility model.Turntable 21 is fixed
It is connected to rotating handle, and is rotated with rotating handle.Lead screw 14, the nut 15 of drive system are all disposed in shell
It drives in box.Drive box that there is bottom plate.Locking pin 22 is pivotably coupled on the periphery of turntable.This it is not necessary to, only
Locking pin 22 is wanted to be arranged at away from the enough distances of rotation center.In the present embodiment, locking pin 22 is arranged on a left side for turntable
In the half portion of side (when observing from right to left), thus when handle and turntable rotate counterclockwise, locking pin 22 will move downward
Hole on drive system bottom plate.The blocking lever 2 of one embodiment according to the present utility model is also shown in Fig. 2, and
The interlock plate 23 on 22 one end of locking pin in blocking lever 2 is set.Perforation is provided on interlock plate 23, to work as blocking lever 2
When being arranged so that perforation is aligned with the hole on drive system bottom plate, locking pin 22 is free on drive system bottom plate
Hole and interlock plate 23 on perforation move downward.That is, handle and turntable are free to rotate counterclockwise, with
Expose the drive hole on shell.When the perforation on interlock plate 23 is not aligned with the hole on drive system bottom plate, locking pin 22
It is interlocked plate 23 to be stopped, to which handle cannot rotate counterclockwise, can not also expose drive hole.That is, earthing switch
11 are maintained at closed state, without surprisingly being disconnected.
Elastic member is set on blocking lever 2, for blocking lever 2 to be biased into latched position (i.e. wearing on interlock plate 23
Hole is misaligned with the hole on transmission system bottom plate).In door closing course, door can push blocking lever 2, and push it into unlock
Position.Therefore, user can expose drive hole with rotating handle when door is closed, to change the state of earthing switch 11.In this implementation
In mode, the door is the back door of electrical cabinet.Particularly, it is the rear Xiamen at back door to drive the door of blocking lever.When back door is closed,
Xiamen Hui Ding makes it be moved to cabinet front direction to blocking lever afterwards, to drive interlock plate to moving before cabinet so that on interlock plate
Perforation can be directed at interlocking latch, into unlocked position.If back door is not turned off, under the action of resetting spring, blocking lever is to cabinet
After move, interlocking latch cannot be directed at the interlocking hole on interlock plate, into latched position, be unable at this time operational grounding switch disconnect,
Realize security function.
In embodiments above, blocking lever is single-piece bar.In this case, bar needs extend to cabinet before cabinet
Afterwards, length is about 1.3 meters.Since bar is longer, deformation is easy tod produce, is caused when resetting, resetting spring cannot push stock to transport
It is dynamic, cause interlock fault.Fig. 3 shows the schematic illustration of another embodiment of blocking lever.As shown in figure 3, blocking lever 2 includes
First section, 24 and second section 25 independent of each other.First section 24 and 25 end of the second section are adjacent to each other, but do not connect
It connects.When the door is closed, movement is transmitted to the first section 24, interlock plate 23, thus will by the adjoining between two sections 24,25
Interlock plate 23 is placed in latched position.As shown, the first section 24 and the second section 25, which both have, is provided with resetting spring, from
And two sections can be with individual reset.Double rod linkage scheme in the present embodiment, two bar individual resets can since pole shortens
Zona transformans is effectively reduced to be not easy to reset；And be not connected between double rod, only contact with each other, by this design scheme,
It can effectively eliminate because processing and assembling the error brought, ensure the reliable realization of interlocking.
The single-piece stock described above that is not offered as can not work, and actually this specification discussion above has shown that list
Part formula stock can also realize the main purpose of the utility model, that is, realize the interlocking work(that earthing switch will not be disconnected when opening the door
Energy；And the embodiment of two-piece type blocking lever provides further benefit on this basis.In addition, the first section and the secondth area
Section does not need to be always maintained at adjoining, as long as door can enter adjacency state when being closed transmits movement.
Fig. 4 shows the structure of the interlock plate 23 of one embodiment according to the present utility model.Interlock plate include base portion and
Sticking department.The arm 43 that base portion includes mounting portion 44, is extended from mounting portion 44.Sticking department includes plate 42 and is arranged in plate 42
Perforation 41.In this embodiment, plate 42, which is arranged, is increasing from base portion and is being parallel on the position of base portion, to form a step
Shape structure.Such structure can increase interlock plate rigidity so that system is relatively reliable.
Fig. 5 shows the cooperation schematic diagram of embodiment interlock plate 23 and locking pin 22 according to the present utility model.It should be noted that
Although being referred to the bottom plate of system in discussed above, this it is not necessary to.It will be appreciated by those skilled in the art that only
Locking pin is wanted to be aligned with the perforation on interlock plate, so that it may which to realize unlocking function, otherwise the two is misaligned, and realizes lock function.
Fig. 6 shows the cooperation of one embodiment blocking lever 2 and door 61 according to the present utility model.Fig. 7 shows interlocking
The cooperation of bar 2 and electrical cabinet side plate.Blocking lever 2 passes through the hole on door frame, then coordinates with door.It can be seen that interlock system is also
Including multiple support elements, it is arranged in housing sidewall, and include trepanning.Blocking lever 2 passes through these trepannings, and passes through these
Support element is maintained in shell side plate 63,64.It is that a hole is opened on frame to be commonly designed, as fulcrum, such method it is excellent
Point is that cost is relatively low, but the disadvantage is that connecting rod can be fallen into cabinet because of misoperation, makes interlock fault.In addition the utility model is set
Support element is set, even if connecting rod is headed into cabinet, will not be fallen.In another embodiment, the boring ratio support on door frame
Hole bigger on part or the diameter bigger than blocking lever, to it goes without doing fulcrum.Since after-frame trepanning is larger, even if connecting rod quilt
Head into cabinet, also can under the action of resetting spring automatic spring.
In the above embodiment, interlock is realized by the cooperation between interlock plate and locking pin, but this field
Technical staff should be understood that any interlock system that can stop that turntable rotates can be used.Such as it can be arranged on turntable recessed
Portion can be extend into latched position blocking lever in the recess portion, and to lock turntable, etc., such structure can realize this
The basic function of utility model.Those skilled in the art can carry out various modifications the above embodiment, without departing from this
The range of utility model.It is to be understood that the mode for interlock plate and the locking pin cooperation pointed out in embodiment is relative to these
Other lock modes realize additional benefit so that system is relatively reliable and stablizes.
The above embodiment is only preferred embodiment, and the utility model is not limited to the above embodiment.Certainly,
The utility model embodiment shown in the drawings is highly preferred embodiment, compared to not shown other alternative solutions
Or for embodiment variant, may have substantive distinguishing features outstanding and significant progress.
Finally, it is also necessary to which understanding, certain technical characteristics in embodiment can for solving specific technical problem
It can be not required in that, so as to without either omitting solution or technology of these technical characteristics without influence technique problem
The formation of scheme；Moreover, the feature of an embodiment, element and/or function can be with other one or more embodiments
Feature, element and/or function be suitably combined with each other, combination either cooperation unless the combination, combination or cooperation are apparent not
It can implement.
Claims (14)
1. a kind of interlock system of earthing switch for electrical cabinet, the electrical cabinet includes shell and facility on shell
Door, and the earthing switch can be disconnected by the drive hole that actuator is inserted on shell is driven, which is characterized in that
The interlock system includes：
Handleset is mounted on shell for electric cabinet, can move between the first position and the second position, wherein at first
Setting Handleset covering drive hole prevents actuator from being inserted into, and exposes drive hole in second position Handleset；
Interlocking component is arranged between Handleset and door, and can move between locked and unlocked positions, wherein solving
Lock position Handleset is free to move to the second position from first position, latched position Handleset it is locked without
The second position can be moved to from first position,
The wherein described interlocking component by elastic component towards latched position bias,
Wherein the closure of door pushes blocking lever that it is made to move to unlocked position from latched position, and the opening of door enables interlocking component
Enough free movements under elastic component bias are to latched position.
2. interlock system as described in claim 1, which is characterized in that the interlocking component includes being arranged in handle component and door
Between blocking lever.
3. interlock system as claimed in claim 2, which is characterized in that the blocking lever is two-part, includes close to the of door
Second section of one section and close Handleset, the first section and the second section are independent of one another, and when door is closed, door closes
Conjunction actuates the first section, and then by actuating the second section by adjoining between the first section and the second section so that blocking lever
Into unlocked position.
4. interlock system as claimed in any one of claims 1-3, which is characterized in that blocking lever is close to one end of Handleset
Place is provided with interlock plate, and perforation is provided on interlock plate, and wherein Handleset includes the handle and case inside in hull outside
The upper disk for being fixed to handle and rotating with it, is wherein provided with locking pin, when interlocking component is in the unlocked position on the disk
When, locking pin is aligned with perforation so that Handleset is free to move to the second position from first position.
5. interlock system as claimed in any one of claims 1-3, which is characterized in that Handleset includes in hull outside
The disk for being fixed to handle on handle and case inside and rotating with it, wherein the disk described in latched position interlocking rod lock,
Prevent it from rotating, so that Handleset cannot move to the second position from first position.
6. interlock system as claimed in claim 3, which is characterized in that at least the second section is provided with the elastic component.
7. interlock system as claimed in claim 6, which is characterized in that both the first section and the second section are respectively arranged with bullet
Property component.
8. interlock system as claimed in claim 2 or claim 3, which is characterized in that the door is arranged on the frame of shell, and interlocks
Bar passes through the hole on frame to stretch out to coordinate with door when door is closed, and the interlocking component further includes support element, is used to support simultaneously
Blocking lever is kept, and blocking lever is allowed to be slided along its longitudinal direction.
9. interlock system as claimed in claim 8, which is characterized in that the hole on frame is not used as the fulcrum of blocking lever, and its
Size is more than the size of blocking lever.
10. interlock system as claimed in claim 8, which is characterized in that the support element is at least two.
11. interlock system as claimed in claim 8, which is characterized in that the support element is arranged in inner walls, and includes
Hole for keeping blocking lever or recess portion.
12. interlock system as claimed in any one of claims 1-3, which is characterized in that the door is the back door of electrical cabinet.
13. interlock system as claimed in any one of claims 1-3, which is characterized in that the electrical cabinet is Medium Voltage Switchgear.
14. a kind of electrical cabinet, which is characterized in that electrical cabinet includes shell, the door that is arranged on shell, control frame ground state
Earthing switch, and the interlock system as described in any one of claim 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988957.0U CN207611712U (en) | 2017-08-08 | 2017-08-08 | The interlock system of earthing switch for electrical cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988957.0U CN207611712U (en) | 2017-08-08 | 2017-08-08 | The interlock system of earthing switch for electrical cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207611712U true CN207611712U (en) | 2018-07-13 |
Family
ID=62792117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720988957.0U Active CN207611712U (en) | 2017-08-08 | 2017-08-08 | The interlock system of earthing switch for electrical cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207611712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616348A (en) * | 2018-12-30 | 2019-04-12 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of earthing switch and the anti-interlock in back door |
-
2017
- 2017-08-08 CN CN201720988957.0U patent/CN207611712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616348A (en) * | 2018-12-30 | 2019-04-12 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of earthing switch and the anti-interlock in back door |
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