CN113643929A - Earthing switch and cable chamber door interlock and switchgear - Google Patents
Earthing switch and cable chamber door interlock and switchgear Download PDFInfo
- Publication number
- CN113643929A CN113643929A CN202111016210.6A CN202111016210A CN113643929A CN 113643929 A CN113643929 A CN 113643929A CN 202111016210 A CN202111016210 A CN 202111016210A CN 113643929 A CN113643929 A CN 113643929A
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- China
- Prior art keywords
- interlocking
- limiting
- interlock
- piece
- chamber door
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses an interlocking device of a grounding switch and a cable chamber door and switch equipment. Wherein earthing switch and cable chamber door interlock includes: an abutment acting element; an interlocking transmission member which moves from a first position to a second position under the abutting action of the abutting action member; a reset acting member, which resets the interlocking transmission member from the second position to the first position under the action of the reset acting member; the interlocking hook connecting piece is rotatably arranged and connected to the interlocking transmission piece, and is in a locking state when the interlocking transmission piece is located at the first position; when the interlocking transmission member is in the second position, the interlocking latch member is in a disengaged state. The interlocking hook connecting piece can be an acute angle in the locking state and the separation state, namely, the rotating angle of the required rotating shaft is smaller, so that the miniaturization development of the switch device is facilitated.
Description
Technical Field
The invention relates to the technical field of electricity, in particular to an interlocking device of a grounding switch and a cable chamber door and switch equipment.
Background
Switchgear is an important component of electrical power transmission and distribution systems, which is used to receive and distribute electrical energy and to detect, control and protect electrical circuits. Wherein when earthing switch in switchgear is in the separating brake state, under earthing switch and cable chamber door interlock's drive for the cable chamber door can't be opened, in order to satisfy five prevent interlocking functions.
The prior art discloses earthing switch and cable chamber door interlock, it includes the interlocking connecting piece, bend and rotate piece and latch hook, the interlocking connecting piece is connected in earthing switch's rotation axis, it rotates to rotate and connects in the interlocking connecting piece to bend, the latch hook rotates to be connected in the rotation piece of bending, the latch hook has the locking state that enters into the hasp of cable chamber door and breaks away from the off-state of going out the hasp, through the rotation of rotation axis, two arm locks that the drive was bent and is rotated are close to or keep away from so that the latch hook is in the locking state or the off-state realizes the interlocking.
However, in the above-mentioned interlocking device for the grounding switch and the cable chamber door, when the locking hook is switched between the locking state and the releasing state, the required rotation angle of the interlocking connector is 90 degrees, i.e. the required rotation angle of the rotation shaft is relatively large, which is not favorable for the miniaturization of the switch device.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the rotation angle of the rotating shaft required by the interlocking device of the grounding switch and the cable chamber door in the prior art is relatively large, which is not beneficial to the miniaturization development of the switch device, so as to provide the interlocking device of the grounding switch and the cable chamber door and the switch device.
An earthing switch and cable chamber door interlock comprising:
an abutting action piece connected to a rotating shaft of the grounding switch;
an interlocking transmission member which is provided close to the abutting action member and moves from a first position to a second position under the abutting action of the abutting action member;
a reset acting member, which resets the interlocking transmission member from the second position to the first position under the action of the reset acting member;
the interlocking lock connecting piece is rotatably arranged and connected to the interlocking transmission piece, and when the interlocking transmission piece is located at the first position, the interlocking lock connecting piece is located in an interlocking hole of the cable chamber door and is in a locked state; when the interlocking drive member is in the second position, the interlocking hook is positioned outside the interlocking aperture and is in a disengaged state.
Further, the reset acting element is sleeved on the interlocking transmission element; the reset action piece is acted on by the limiting piece.
Furthermore, the limiting part comprises a first limiting part and a second limiting part, the interlocking transmission part is arranged in the first limiting part in a penetrating manner, the second limiting part is fixedly arranged on the interlocking transmission part and is positioned in the first limiting part, and the reset action part is arranged between the first limiting part and the second limiting part.
Further, the first limiting part comprises a first limiting arm and a second limiting arm, the interlocking transmission part sequentially penetrates through the first limiting arm and the second limiting arm along the direction far away from the rotating shaft, one end of the reset action part abuts against the first limiting arm, and the other end of the reset action part abuts against the second limiting part.
Further, the abutting action member includes an abutting action body and an abutting connection body, the abutting action body acts on the interlocking transmission member, and the abutting connection body is connected to the rotating shaft.
Further, the interlocking transmission part is of an L-shaped structure; the abutting action body is of an L-shaped structure; the first limiting piece is of a U-shaped structure; the second limiting part is a limiting pin and penetrates through a limiting mounting hole of the interlocking transmission part.
Further, still include the mounting bracket, it links firmly in the cable chamber and is close to the setting of interlocking driving medium, the interlocking latch connecting piece rotate connect in the mounting bracket.
Furthermore, the interlocking hook connecting piece is of a Z-shaped structure, a strip connecting hole and a pin joint mounting hole are formed in the interlocking hook connecting piece, the strip connecting hole is connected to the interlocking transmission piece, and the pin joint mounting hole is connected to the mounting frame.
A switchgear comprises the grounding switch and a cable chamber door interlocking device.
Further, the switchgear is a ring main unit.
The technical scheme of the invention has the following advantages:
1. the invention provides an interlocking device of a grounding switch and a cable chamber door, which comprises: an abutting action piece connected to a rotating shaft of the grounding switch; an interlocking transmission member which is provided close to the abutting action member and moves from a first position to a second position under the abutting action of the abutting action member; a reset acting member, which resets the interlocking transmission member from the second position to the first position under the action of the reset acting member; the interlocking lock connecting piece is rotatably arranged and connected to the interlocking transmission piece, and when the interlocking transmission piece is located at the first position, the interlocking lock connecting piece is located in an interlocking hole of the cable chamber door and is in a locked state; when the interlocking drive member is in the second position, the interlocking hook is positioned outside the interlocking aperture and is in a disengaged state. An earthing switch and cable chamber door interlock of this structure, interlock hook connector when locking state with break away from the state conversion, the butt effect makes interlock hook connector be in the state of breaking away from, and the effect that resets makes interlock hook connector be in the locking state, and the turned angle of required butt effect can be the acute angle, and the turned angle of required rotation axis is less promptly to be favorable to switchgear towards miniaturized development.
2. The limiting piece comprises a first limiting piece and a second limiting piece, the interlocking transmission piece penetrates through the first limiting piece, the second limiting piece is fixedly arranged on the interlocking transmission piece and is positioned in the first limiting piece, and the reset action piece is arranged between the first limiting piece and the second limiting piece. According to the interlocking device of the grounding switch and the cable chamber door, the first limiting part and the second limiting part are arranged, the rotating shaft rotates to abut against the interlocking transmission part, the interlocking transmission part moves to enable the reset action part to deform under the limitation of the first limiting part and the second limiting part, at the moment, when the interlocking transmission part is converted from a locking state to a disengaging state, the grounding switch is in a closing state, and the cable chamber door can be opened; rotate in the opposite direction through the rotation axis and do not the butt act on interlocking driving medium, reset and act on the piece and produce the effort for restoring deformation and make interlocking driving medium move in the opposite direction, interlock hook connecting piece converts the locking state into by the off-state this moment, and earthing switch is in the separating brake state, and cable chamber door can't be opened.
3. The switch equipment provided by the invention comprises the grounding switch and a cable chamber door interlocking device. The switch device with the structure has the advantages of the interlocking device of the grounding switch and the cable chamber door.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a grounding switch and cable chamber door interlock provided in an embodiment of the present invention;
FIG. 2 is an enlarged partial view of the interlocking latch and cable chamber door shown in FIG. 1;
FIG. 3 is a schematic structural view of the earthing switch and cable chamber door interlock shown in FIG. 1 without showing the cable chamber;
FIG. 4 is a schematic structural view of the mounting bracket and the interlocking latch member shown in FIG. 3;
FIG. 5 is an enlarged partial view of the view of FIG. 1 showing a spacing mounting hole;
description of reference numerals:
1-abutting action body, 2-interlocking transmission piece, 21-limiting installation hole, 3-resetting action piece, 4-interlocking locking piece, 41-strip-shaped connection hole, 51-first limiting arm, 52-second limiting arm, 53-connection arm, 61-U-shaped installation body, 62-installation connection body, 71-cable chamber door, 711-interlocking hole, 72-top plate, 721-through hole, 8-three-station mechanism, 81-rotating shaft, 91-fastening connection piece and 92-pivoting fastening piece.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides an interlocking device for a grounding switch and a cable chamber door as shown in fig. 1 to 5, which is arranged along the height direction and comprises an abutting acting element, an interlocking transmission element 2, a resetting acting element 3, an interlocking hooking element 4, a limiting element and a mounting bracket. It should be noted that the cable chamber door 71 is connected to the base through a hook structure.
Wherein the abutting acting piece is connected with a rotating shaft 81 of the grounding switch; the interlocking transmission piece 2 is arranged close to the abutting action piece, and the interlocking transmission piece 2 moves from a first position to a second position under the abutting action of the abutting action piece, wherein the second position is higher than the first position; the interlocking transmission piece 2 is reset to the first position from the second position under the action of the resetting action piece 3; the interlocking hook member 4 is rotatably disposed and connected to the interlocking transmission member 2, and when the interlocking transmission member 2 is located at the first position, the interlocking hook member 4 is located in the interlocking hole 711 of the cable compartment door 71 to be in a locked state, and at this time, the cable compartment door 71 cannot be lifted upwards and the cable compartment door 71 cannot be opened; when the interlocking transmission member 2 is located at the second position, the interlocking hook 4 is located outside the interlocking hole 711 and in a disengaged state, and at this time, the cable compartment door 71 can be lifted up and the cable compartment door 71 can be opened; acting on the reset acting element 3 through a limiting element. Specifically, the reset acting element 3 is sleeved on the interlocking transmission element 2, and the reset acting element 3 can be a spring or other elements; the grounding switch comprises a three-position mechanism 8, and the abutting acting piece is connected with a rotating shaft 81 of the three-position mechanism 8; the interlocking transmission piece 2 is of an L-shaped structure.
As shown in fig. 1 and 3, the abutment acting member includes an abutment acting body 1 and an abutment connecting body, the abutment acting body 1 acts on the interlock transmission member 2, and the abutment connecting body is inserted and connected to the rotation shaft 81. Specifically, the abutment action body 1 has an L-shaped structure. Wherein interlocking driving medium 2 is close to the tip of butt action body 1 for the prismatic structure of for example cuboid type etc. and the wall that butt action body 1 is close to interlocking driving medium 2 is the plane to avoid appearing interlocking driving medium 2 and butt and act on the condition of blocking between the body 1.
The limiting member in this embodiment includes a first limiting member and a second limiting member, the interlocking transmission member 2 is disposed through the first limiting member, the second limiting member is fixedly disposed on the interlocking transmission member 2 and located in the first limiting member, and a reset acting member 3 is disposed between the first limiting member and the second limiting member.
Referring to fig. 1 and 3, the first limiting member is a U-shaped structure, and includes a first limiting arm 51, a second limiting arm 52 and a connecting arm 53, and the connecting arm 53 connects the first limiting arm 51 and the second limiting arm 52 and is fixedly connected to the clamp plate of the three-position mechanism 8. The interlocking transmission member 2 sequentially penetrates through the first limiting arm 51 and the second limiting arm 52 along a direction away from the rotating shaft 81, one end of the reset acting member 3 abuts against the first limiting arm 51, and the other end abuts against the second limiting member. Specifically, the second limiting member is a limiting pin and is inserted into the limiting mounting hole 21 of the interlocking transmission member 2 shown in fig. 5.
By arranging the first limiting part and the second limiting part, the rotating shaft 81 rotates to abut against and act on the interlocking transmission part 2, the interlocking transmission part 2 moves to enable the reset acting part 3 to deform under the limitation of the first limiting part and the second limiting part, at the moment, when the interlocking connecting part 4 is converted from a locking state to a disengaging state, the grounding switch is in a closing state, and the cable chamber door 71 can be opened; rotate in opposite direction through rotation axis 81 and do not the butt act on interlocking driving medium 2, reset acting on piece 3 and produce the effort for restoring deformation and make interlocking driving medium 2 move in opposite direction, interlock hook connection spare 4 converts the locking state into by the off-state this moment, and earthing switch is in the separating brake state, and cable chamber door 71 can't be opened.
As shown in fig. 1, 3 and 4, the mounting bracket is attached to the top plate 72 of the cable compartment and is located adjacent to the interlocking drive member 2, and the interlocking hook member 4 is pivotally connected to the mounting bracket. Specifically, the mounting bracket includes U type installation body 61 and erection joint body 62, and U type installation body 61 and the roof 72 of cable chamber are the angle setting, and erection joint body 62 pastes and establishes the roof 72 who links firmly in the cable chamber, and interlocking hook 4 is located the opening part of U type installation body 61 and connects in U type installation body 61 through pin joint fastener 92. Wherein the ceiling 72 of the cable chamber is provided with a through hole 721 allowing the coupling latch 4 to pass through.
As shown in fig. 2 and 4, the interlocking hook 4 is a Z-shaped structure, the interlocking hook 4 is provided with a bar-shaped connecting hole 41 and a pivot mounting hole, a fastening connector 91 is provided through the bar-shaped connecting hole 41 to be connected to the interlocking transmission member 2, and a pivot fastening member 92 is provided through the pivot mounting hole to be connected to the mounting frame.
As shown in fig. 1, at this time, the abutting acting element is just abutted to the interlocking transmission element 2 located at the first position, and then the interlocking transmission element 2 is driven to move to the second position upward in fig. 1, the interlocking transmission element 2 performs a lifting movement, at this time, the reset acting element 3 is deformed due to compression, the grounding switch is in a closing state, the interlocking hooking element 4 is in a disengaging state, and the cable chamber door 71 can be opened; then, the rotation shaft 81 rotates in the reverse direction without abutting against the interlock actuator 2, the ground switch is in the open state, the reset actuator 3 generates an acting force to move the interlock actuator 2 in the reverse direction in order to restore the deformation, and the interlock actuator 2 moves down, and at this time, the interlock hook 4 is in the locked state, and the cable chamber door 71 cannot be opened.
According to the interlocking device for the grounding switch and the cable chamber door, when the interlocking hook piece 4 is switched between the locking state and the disengaging state, the interlocking action piece is abutted to enable the interlocking hook piece 4 to be in the disengaging state, the reset action piece 3 is acted to enable the interlocking hook piece 4 to be in the locking state, the required rotation angle of the abutting action piece can be an acute angle, namely the required rotation angle of the rotating shaft 81 is smaller, and therefore the interlocking device is beneficial to the miniaturization development of switching equipment.
Example 2
The present embodiment provides a switchgear comprising the earthing switch and cable chamber door interlock of embodiment 1. Specifically, the switchgear is a ring main unit or others.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An earthing switch and cable chamber door interlock, comprising:
an abutting action piece connected to a rotating shaft of the grounding switch;
an interlocking transmission member which is provided close to the abutting action member and moves from a first position to a second position under the abutting action of the abutting action member;
a reset acting member, which resets the interlocking transmission member from the second position to the first position under the action of the reset acting member;
the interlocking lock connecting piece is rotatably arranged and connected to the interlocking transmission piece, and when the interlocking transmission piece is located at the first position, the interlocking lock connecting piece is located in an interlocking hole of the cable chamber door and is in a locked state; when the interlocking drive member is in the second position, the interlocking hook is positioned outside the interlocking aperture and is in a disengaged state.
2. The earthing switch and cable chamber door interlock as defined in claim 1, wherein said reset acting member is sleeved on said interlock driving member; the reset action piece is acted on by the limiting piece.
3. The interlocking device of claim 2, wherein the limiting member comprises a first limiting member and a second limiting member, the interlocking transmission member is disposed through the first limiting member, the second limiting member is fixedly disposed on the interlocking transmission member and located in the first limiting member, and the reset acting member is disposed between the first limiting member and the second limiting member.
4. The interlock device of claim 3, wherein said first limiting member comprises a first limiting arm and a second limiting arm, said interlock driving member sequentially penetrates said first limiting arm and said second limiting arm along a direction away from said rotation axis, one end of said reset acting member abuts against said first limiting arm and the other end abuts against said second limiting member.
5. The earthing switch and cable compartment door interlock according to claim 4, wherein the abutment action member comprises an abutment action body acting on the interlock transmission member and an abutment connection body connected to the rotation shaft.
6. The earthing switch and cable chamber door interlock of claim 5, wherein the interlock drive is an L-shaped structure; the abutting action body is of an L-shaped structure; the first limiting piece is of a U-shaped structure; the second limiting part is a limiting pin and penetrates through a limiting mounting hole of the interlocking transmission part.
7. The earthing switch and cable compartment door interlock of any one of claims 1-6, further comprising a mounting bracket secured to the cable compartment and disposed adjacent to said interlock drive, said interlock latch member being pivotally connected to said mounting bracket.
8. The interlock device for the earthing switch and the cable chamber door according to claim 7, wherein the interlocking latch connector is a Z-shaped structure, and the interlocking latch connector is provided with a bar-shaped connecting hole and a pivot mounting hole, and is connected to the interlock driving member through the bar-shaped connecting hole and is connected to the mounting frame through the pivot mounting hole.
9. A switchgear comprising an earthing switch according to any one of claims 1 to 8 and a cable chamber door interlock.
10. The switchgear as claimed in claim 9, wherein the switchgear is a ring main unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111016210.6A CN113643929A (en) | 2021-08-31 | 2021-08-31 | Earthing switch and cable chamber door interlock and switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111016210.6A CN113643929A (en) | 2021-08-31 | 2021-08-31 | Earthing switch and cable chamber door interlock and switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113643929A true CN113643929A (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111016210.6A Pending CN113643929A (en) | 2021-08-31 | 2021-08-31 | Earthing switch and cable chamber door interlock and switchgear |
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| Country | Link |
|---|---|
| CN (1) | CN113643929A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116825558A (en) * | 2023-08-30 | 2023-09-29 | 福建德普乐能源科技有限公司 | Interlocking device for high-voltage switch equipment mechanism |
-
2021
- 2021-08-31 CN CN202111016210.6A patent/CN113643929A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116825558A (en) * | 2023-08-30 | 2023-09-29 | 福建德普乐能源科技有限公司 | Interlocking device for high-voltage switch equipment mechanism |
| CN116825558B (en) * | 2023-08-30 | 2023-12-01 | 福建德普乐能源科技有限公司 | Interlocking device for high-voltage switch equipment mechanism |
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