CN113611565A - Switch five-prevention interlocking device - Google Patents
Switch five-prevention interlocking device Download PDFInfo
- Publication number
- CN113611565A CN113611565A CN202110825448.7A CN202110825448A CN113611565A CN 113611565 A CN113611565 A CN 113611565A CN 202110825448 A CN202110825448 A CN 202110825448A CN 113611565 A CN113611565 A CN 113611565A
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- CN
- China
- Prior art keywords
- interlocking
- bent plate
- switch
- rod
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/287—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member wherein the operating part is made inaccessible or more difficult to access by a lid, cover or guard, e.g. lockable covers
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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
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
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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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a five-prevention interlocking device for switches, which comprises a first interlocking bent plate, a second interlocking bent plate and a mechanical program lock, wherein the first interlocking bent plate is fixed in a mechanism box of a switch cabinet, the second interlocking bent plate corresponds to the first interlocking bent plate, the mechanical program lock is used for controlling the opening and closing sequence and state of different switches, the first interlocking bent plate is fixed in the mechanism box of the switch cabinet, and the second interlocking bent plate can move left and right on the first interlocking bent plate to plug a through hole on the first interlocking bent plate, so that whether an isolating switch can be operated or not is controlled; and whether the program lock can be locked or not is controlled, and the key can be taken down only after the program lock is locked, so that the probability of losing the key can be reduced, and the safety is greatly improved.
Description
Technical Field
The invention relates to an interlocking device, in particular to a five-prevention switch interlocking device.
Background
The switch cabinet is an electrical device, the exterior line of the switch cabinet firstly enters a main control switch in the cabinet, then enters a branch control switch, each branch circuit is arranged according to the requirement, such as an instrument, an automatic control, a motor magnetic switch, various alternating current contactors and the like, some switch cabinets are also provided with a high-voltage chamber and a low-voltage chamber, a high-voltage bus, such as a power plant and the like, and a low-frequency load reduction for protecting the main device is also arranged; the isolating switch is prevented from being switched on and off under load; preventing the charged hanging (closing) of a grounding wire (a grounding switch); preventing power transmission with ground wire; prevent the wrong entering into the electrified interval. However, the existing mechanical program lock key of the five-prevention interlocking device can be taken out in any state, so that the key is easy to lose, but is not easy to match with the state of the five-prevention interlocking device, the key is easy to be pulled out by mistake to cause danger, and the using effect is poor.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme: a five-prevention interlocking device for a switch comprises a first interlocking bent plate, a second interlocking bent plate and a mechanical program lock, wherein the first interlocking bent plate is fixed in a mechanism box of a switch cabinet, the second interlocking bent plate corresponds to the first interlocking bent plate, the interlocking bent plate I is provided with a through hole corresponding to an isolation operation shaft of the isolating switch and a split-combined interlocking shaft support, the mechanical program lock can control the interlocking bent plate II to move left and right on the interlocking bent plate I to block the through hole, the isolating operation shaft is provided with a cam, the opening and closing interlocking shaft support is provided with a lower door interlocking rod which can move and corresponds to the cam, the lower door interlocking rod is provided with a spring baffle and a switching interlocking rod for blocking the interlocking bent plate II from moving left completely, and a compression spring with one end fixed with the spring baffle and the other end fixed with the opening and closing interlocking shaft support is sleeved on the lower door interlocking rod, and an opening and closing indication plate corresponding to the opening and closing interlocking rod is arranged on the opening and closing interlocking shaft support.
As a further explanation, both ends of the compression spring are welded and fixed with the spring baffle and the opening and closing interlocking shaft support.
As a further explanation, the opening and closing indication plate is provided with a long slot hole corresponding to the opening and closing interlocking lever.
As a further explanation, the first interlocking bent plate is provided with a slide bar, and the second interlocking bent plate is provided with a slide groove corresponding to the slide bar.
As a further description, the second interlocking bent plate is provided with a bent edge corresponding to the lock rod of the mechanical program lock and a convex edge corresponding to the opening and closing interlocking rod.
Compared with the prior art, the invention has the following advantages: the invention has simple structure, controls the opening and closing sequence and state of different switches by using a mechanical program lock, the first interlocking bent plate is fixed in a mechanism box of a switch cabinet, and the second interlocking bent plate can move left and right on the first interlocking bent plate to plug a through hole on the first interlocking bent plate, thereby controlling whether an isolating switch can be operated or not; and whether the program lock can be locked or not is controlled, and the key can be taken down only after the program lock is locked, so that the probability of losing the key can be reduced, and the safety is greatly improved.
Drawings
Fig. 1a and 1b are schematic front and top views of a closed state of a disconnector according to the invention;
FIG. 2 is a schematic front and top view of the disconnect switch of the present invention in a disconnected state;
FIG. 3 is a schematic three-view illustration of an interlocking bent plate I of the present invention;
fig. 4 is a schematic front and top view of the interlocking bent plate ii of the present invention.
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.
Example 1: as shown in fig. 1-4, the embodiment provides a five-prevention interlocking device for a switch, which includes a first interlocking bent plate 2 fixed in a mechanism box of a switch cabinet, a second interlocking bent plate 3 corresponding to the first interlocking bent plate 2, and a mechanical program lock 1, wherein the first interlocking bent plate 2 is provided with a through hole 201 corresponding to an isolation operation shaft 7 of an isolation switch, and a switching interlocking shaft support 4, the mechanical program lock 1 can control the second interlocking bent plate 3 to move left and right on the first interlocking bent plate 2 to block the through hole 201, the isolation operation shaft 7 is provided with a cam 10, the switching interlocking shaft support 4 is provided with a movable lower door interlocking rod 5 corresponding to the cam 10, the lower door interlocking rod 5 is provided with a spring baffle 501 and a switching interlocking rod 6 for blocking the second interlocking bent plate 3 from moving left completely, one end of the lower door interlocking rod 5 is sleeved with the spring baffle 501, and the other end of the compression spring 9 is fixed with the opening and closing interlocking shaft support 4, and an opening and closing indicating plate 8 corresponding to the opening and closing interlocking rod 6 is arranged on the opening and closing interlocking shaft support 4.
The mechanical program lock 1 of the present embodiment employs a conventional mechanism well known to those skilled in the art, and will not be described in detail herein.
And two ends of the compression spring 9 are welded and fixed with the spring baffle 501 and the opening and closing interlocking shaft support 4. The opening and closing indication plate 8 is provided with a long slot hole 801 corresponding to the opening and closing interlocking lever 6. The first interlocking bent plate 2 is provided with a sliding rod 202, and the second interlocking bent plate 3 is provided with a sliding groove 301 corresponding to the sliding rod 202. The second interlocking bent plate 3 is provided with a bent edge 302 corresponding to the lock rod of the mechanical program lock 1 and a convex edge 303 corresponding to the opening and closing interlocking rod 6.
When the device is used specifically, the state shown in the figure 1 is a program lock key-on state, at the moment, the interlocking bent plate II 3 moves to the right to jack the program lock, the isolation operation shaft hole is exposed, and the isolation switch can be switched on and off by rotating the isolation operation shaft 7; the isolating switch is turned on by clockwise rotating 65 degrees through the isolating operation shaft 7, meanwhile, the cam 10 correspondingly rotates 65 degrees, at the moment, the cam is shown in figure 1, at the moment, the lower door interlocking rod 5 moves upwards under the pushing of the compression spring 9 and jacks the cam 10; at this time, the lower door interlocking lever 5 drives the opening and closing interlocking lever 6 to move upwards, as shown in fig. 1, the opening and closing interlocking lever 6 blocks the interlocking bent plate 3 and cannot move leftwards completely, in this state, the program lock lever is blocked by a bent edge on the interlocking change plate 3 and cannot be locked completely, and at this time, the program lock key cannot be taken down.
The state of fig. 2 is the closing state of the isolating switch, the isolating switch is closed by clockwise rotating 65 degrees through the isolating operation shaft 7, and simultaneously, the cam 10 correspondingly rotates 65 degrees, and the cam is shown in fig. 2; at this time, the lower door interlocking lever 5 is pressed downwards when the cam rotates; at the moment, the lower door interlocking rod 5 drives the opening and closing interlocking rod 6 to move downwards, as shown in the position of the first drawing, the second interlocking bent plate 3 can move leftwards, in this state, the program lock can be completely locked, and at the moment, a program lock key can be taken down; the isolating switch is in an isolated state, which indicates that the cabinet has power failure, and the program lock on other switches can be opened to carry out power-off maintenance by taking down the program lock key.
The structure of the embodiment is simple, the opening and closing sequence and state of different switches are controlled by a mechanical program lock, the first interlocking bent plate is fixed in a mechanism box of a switch cabinet, and the second interlocking bent plate can move left and right on the first interlocking bent plate to plug a through hole on the first interlocking bent plate, so that whether the isolating switch can be operated or not is controlled; and whether the program lock can be locked or not is controlled, and the key can be taken down only after the program lock is locked, so that the probability of losing the key can be reduced, and the safety is greatly improved.
The present invention is illustrated by way of example and not by way of limitation. It will be apparent to those skilled in the art that other variations and modifications may be made in the foregoing disclosure without departing from the spirit or essential characteristics of all embodiments, and that all changes and modifications apparent from the above teachings are within the scope of the invention.
Claims (5)
1. A five-prevention interlocking device of a switch is characterized by comprising a first interlocking bent plate (2), a second interlocking bent plate (3) and a mechanical program lock (1), wherein the first interlocking bent plate (2), the second interlocking bent plate (3) and the mechanical program lock are fixed in a mechanism box of a switch cabinet, the first interlocking bent plate (2) is provided with a through hole (201) and a switching interlocking shaft support (4), the through hole (201) corresponds to an isolation operation shaft (7) of an isolating switch, the mechanical program lock (1) can control the second interlocking bent plate (3) to move left and right on the first interlocking bent plate (2) to block the through hole (201), the isolation operation shaft (7) is provided with a cam (10), the switching interlocking shaft support (4) is provided with a movable lower door interlocking rod (5) corresponding to the cam (10), the lower door interlocking rod (5) is provided with a spring baffle (501) and a switching interlocking rod (6) for blocking the second interlocking bent plate (3) from moving left completely, and a compression spring (9) with one end fixed with the spring baffle (501) and the other end fixed with the opening and closing interlocking shaft support (4) is sleeved on the lower door interlocking rod (5), and an opening and closing indication board (8) corresponding to the opening and closing interlocking rod (6) is arranged on the opening and closing interlocking shaft support (4).
2. The switch five-prevention interlocking device according to claim 1, wherein two ends of the compression spring (9) are welded and fixed with the spring baffle (501) and the opening-closing interlocking shaft support (4).
3. The switch five-prevention interlocking device according to claim 2, wherein the switch indication plate (8) is provided with a long slot hole (801) corresponding to the switch interlocking rod (6).
4. The switch five-prevention interlocking device according to claim 3, characterized in that a sliding rod (202) is arranged on the first interlocking bent plate (2), and a sliding groove (301) corresponding to the sliding rod (202) is arranged on the second interlocking bent plate (3).
5. The switch five-prevention interlocking device according to claim 4, characterized in that the second interlocking bent plate (3) is provided with a bent edge (302) corresponding to the lock rod of the mechanical program lock (1) and a convex edge (303) corresponding to the opening and closing interlocking rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110825448.7A CN113611565A (en) | 2021-07-21 | 2021-07-21 | Switch five-prevention interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110825448.7A CN113611565A (en) | 2021-07-21 | 2021-07-21 | Switch five-prevention interlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113611565A true CN113611565A (en) | 2021-11-05 |
Family
ID=78305044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110825448.7A Pending CN113611565A (en) | 2021-07-21 | 2021-07-21 | Switch five-prevention interlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113611565A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258670A (en) * | 2013-04-22 | 2013-08-21 | 广西银河迪康电气有限公司 | Loading switch cabinet program lock operating device |
| CN203690160U (en) * | 2013-12-31 | 2014-07-02 | 陈刚 | Interlocking mechanism of semi-enclosed looped network circuit breaker cabinet |
| CN211829567U (en) * | 2020-05-07 | 2020-10-30 | 浙江轩玥电气有限公司 | Mechanical five-prevention interlocking mechanism for ring main unit |
-
2021
- 2021-07-21 CN CN202110825448.7A patent/CN113611565A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258670A (en) * | 2013-04-22 | 2013-08-21 | 广西银河迪康电气有限公司 | Loading switch cabinet program lock operating device |
| CN203690160U (en) * | 2013-12-31 | 2014-07-02 | 陈刚 | Interlocking mechanism of semi-enclosed looped network circuit breaker cabinet |
| CN211829567U (en) * | 2020-05-07 | 2020-10-30 | 浙江轩玥电气有限公司 | Mechanical five-prevention interlocking mechanism for ring main unit |
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