CN116613023A - Misoperation preventing interlocking mechanism and device for gas-insulated metal-enclosed switch - Google Patents
Misoperation preventing interlocking mechanism and device for gas-insulated metal-enclosed switch Download PDFInfo
- Publication number
- CN116613023A CN116613023A CN202310896825.5A CN202310896825A CN116613023A CN 116613023 A CN116613023 A CN 116613023A CN 202310896825 A CN202310896825 A CN 202310896825A CN 116613023 A CN116613023 A CN 116613023A
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- rack
- cam
- misoperation
- gas
- insulated metal
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- 230000007246 mechanism Effects 0.000 title claims abstract description 67
- 230000005540 biological transmission Effects 0.000 claims abstract description 48
- 238000012546 transfer Methods 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 4
- 238000012795 verification Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/50—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
-
- 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
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides an anti-misoperation interlocking mechanism and device of a gas-insulated metal-enclosed switch, comprising a cam transmission mechanism and a switching-on/off display mechanism, wherein the cam transmission mechanism comprises a first cam and a first transmission rod fixedly arranged on the first cam, the other end of the first transmission rod is provided with a thread structure, the first transmission rod is in threaded connection with a thread groove formed in a first rack through the thread structure, a first slot hole is formed in the other end of the first rack, the first slot hole is in sliding connection with a first sliding block, the first rack is meshed with a first gear for rotation, the first slot hole can enable the first rack to drive the first gear to rotate through up-down movement along the first sliding block, and a rotating shaft is fixedly arranged at the center of the first gear. The invention can not only know the opening and closing state of the load switch cabinet at the time without verification, but also prevent the misoperation of the switch equipment when the switch cabinet is closed by an operator, and has simple structure, reasonable design and easy realization.
Description
Technical Field
The invention relates to the field of gas-insulated metal-enclosed switchgear, in particular to an anti-misoperation interlocking mechanism and device of a gas-insulated metal-enclosed switch.
Background
The gas-insulated metal-enclosed switchgear is a metal-enclosed switchgear and a control device, at least a part of which adopts gas higher than atmospheric pressure as an insulating medium, because the GIS has the advantages of compact structure, small occupied area, high reliability, flexible configuration, convenient installation, strong safety, strong environment adaptability and small maintenance workload, the gas-insulated metal-enclosed switchgear is widely applied in the fields of high voltage and ultrahigh voltage, and is also used in the field of ultrahigh voltage. The GIS consists of a breaker, a disconnecting switch, a grounding switch, a transformer, a lightning arrester, a bus, a connecting piece, an outgoing terminal and the like, all the equipment or the parts are sealed in a metal grounding shell, insulating gas with certain pressure is filled in the equipment or the parts, and most of the filled gas is SF6, so that the equipment or the parts are also called SF6 totally-enclosed combined electrical equipment. In order to protect the life safety of operators and prevent misoperation of switch cabinet opening and closing equipment, in the prior art, there are many cases that an misoperation prevention interlocking mechanism and a device are arranged on a load switch cabinet, for example, an misoperation prevention interlocking mechanism and a device of a gas-insulated metal-enclosed switch with the application publication number of CN106128845B are arranged, through installing a rotating plate linkage assembly, a connecting rod transmission assembly, a program lock assembly and a push rod linkage assembly, the traditional installation method and design concept are changed, so that the situation that the load switch cabinet is in a closing state or an opening state is mechanically confirmed firstly, then mechanical locking is carried out, and the program lock in the opening position is effectively identified by matching with a travel switch to lock the program lock in the opening position no matter in the closing state or the opening state, so that the closing operation can not be carried out, and the opening operation can be carried out by pulling out by a key, the reliability of a series of three-lock two-key air-inflation cabinet in the closing state is ensured, the reliability of the series of air-inflation cabinet in the opening state is ensured, and the reliable operation and the misoperation prevention of the air cabinet in the operation is ensured, and the air cabinet has the advantages of simple structure and convenient and safe operation. However, this mechanism and device also suffer from the following disadvantages: (1) When an operator operates electrical equipment, a switching-on/off display device of the load switch cabinet is lacking, the switching-on/off state of the switch cabinet at the moment must be tested first and then the switch cabinet is operated, and each time the switch cabinet passes through a verification link, so that on one hand, trouble is brought to the operator, time and equipment cost are increased, and on the other hand, the verification link is directly omitted due to low quality of part of operators, and electric shock risks are brought; (2) When detecting the opening and closing state of the load switch cabinet, the program lock is required to be manually operated, the connecting rod assembly is operated to push the rotating plate to enable the strip-shaped rightward extending part to push against the spring of the load switch closing spring mechanism, if the connecting rod assembly can push the rotating plate or the key can rotate, the key at the opening position of the load switch cabinet cannot be pulled out, otherwise, the load switch cabinet is closed, but the transmission force of the program lock is required to pass through the fixed head, the front connecting rod, the rear connecting rod and the rotating plate, finally, the program lock reaches the rightward extending part, and after the program lock passes through a plurality of connecting rod mechanisms, the strip-shaped rightward extending part cannot contact with the spring of the load switch closing spring mechanism, namely whether the load switch cabinet is in the closing state or the opening state cannot be judged.
Disclosure of Invention
The invention aims to provide an anti-misoperation interlocking mechanism and device which can not only know the opening and closing state of a load switch cabinet at the moment without verification, but also prevent an operator from misoperation of a gas-insulated metal-enclosed switch of a switch device when the switch cabinet is closed, so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a gas-insulated metal-enclosed switch's prevent maloperation interlocking device, includes cam drive mechanism and divide-shut brake display mechanism, cam drive mechanism includes first cam and sets firmly the first transfer line on the first cam, the other end of first transfer line is offered and is had the helicitic texture, first transfer line passes through the helicitic texture and sets up the helicitic groove threaded connection in first rack, first slotted hole has been seted up to the other end inside of first rack, with first slider sliding connection in the first slotted hole, first rack and first gear engagement rotation, first slotted hole can make first rack drive first gear rotation along first slider reciprocates, the central fixed mounting of first gear has the axis of rotation, the left end portion of axis of rotation passes divide-shut brake display mechanism's display panel and rotating vane are connected and are set up, the right end portion of axis of rotation passes through the bearing and is fixed on the support, the axis of rotation is used for driving the second transfer line and makes the fourth slider drive connecting rod drive link drive mechanism's push rod and the cooperation of rotating the operation of dividing shut brake hole grafting.
Preferably, the cam transmission mechanism further comprises a second sliding block and an electric push rod fixed on the second sliding block, the second sliding block is movably connected with the first cam, and the electric push rod is used for pushing the second sliding block to slide on the first sliding groove so that the first cam can move up and down.
Preferably, the pulley is fixedly installed at the bottom of the second sliding block, and the first baffle limiting the sliding distance of the second sliding block is arranged at the left end and the right end of the first sliding groove.
Preferably, the display panel is provided with a character for distinguishing the closing state and the opening state of the load switch cabinet, and the outer ring of the first transmission rod is sleeved with a first guide groove.
Preferably, the right side and the second gear fixed connection of axis of rotation, second gear and second rack meshing rotate, the second slotted hole has been seted up to the inside second slotted hole that has seted up of upper end of second rack, second slotted hole and the third slider sliding connection who installs in the second slotted hole, the lower extreme and the second transfer line of second rack are connected and are set up, the fourth slider slides from top to bottom in the second spout the both ends are provided with the restriction about the second spout the second baffle of fourth slider sliding distance the one end that the second spout was kept away from to the fourth slider and one side swing joint of second cam, connecting rod drive mechanism has been set firmly to the opposite side of second cam.
Preferably, the connecting rod transmission mechanism comprises a third transmission rod, a connecting rod hinged with one end of the third transmission rod and a push rod hinged with the other end of the connecting rod, and the other end of the push rod is in sliding connection with a through hole formed in the through groove.
Preferably, the outer ring of the third transmission rod is sleeved with a second guide groove, and the middle part of the rod body of the connecting rod is movably connected with the fixed pile.
The misoperation preventing interlocking device of the gas-insulated metal-enclosed switch comprises a load switch operating mechanism and the misoperation preventing interlocking mechanism of the gas-insulated metal-enclosed switch, wherein the load switch operating mechanism is provided with a rotary switching-on and switching-off operating hole, and the right end of a push rod can extend into the rotary switching-on and switching-off operating hole.
Compared with the prior art, the invention has the beneficial effects that:
the cam transmission mechanism is utilized to easily and conveniently push the first transmission rod fixedly arranged on the first cam to move upwards, so that the first rack fixed on the first transmission rod through a threaded structure moves upwards, the first rack moves upwards to drive the first gear to rotate clockwise by utilizing the gear engagement effect, the rotating blade fixed on the rotating shaft is driven to rotate clockwise by the rotation of the first gear, the load switch cabinet is displayed on the display panel of the opening and closing display mechanism to be in a closing state at the moment, the rotation of the rotating shaft drives the second gear fixedly connected on the rotating shaft to rotate, the second rack is driven to move upwards by the rotation of the second gear, the second transmission rod is connected to the lower end of the second rack, the second transmission rod drives the fourth slider to move upwards, the second cam is driven to move leftwards along with the third transmission rod in the process of moving upwards by the linkage of the fourth slider, meanwhile, the joint connected with the third transmission rod moves leftwards, the other joint of the connecting rod moves rightwards under the action of the connecting rod mechanism, and then the push rod is driven to stretch into the rotating opening and closing operation hole.
Drawings
FIG. 1 is a schematic view of the structure of the push rod of the present invention when the push rod extends into the through hole;
FIG. 2 is a schematic view of the push rod of the present invention when the push rod does not extend into the through hole;
FIG. 3 is a schematic view of a second slider and a first chute or a second chute according to the present invention;
FIG. 4 is a schematic view of the structure of the first rack and the second rack of the present invention;
FIG. 5 is a schematic view of a first driving rod according to the present invention;
FIG. 6 is a schematic illustration of the engagement of the first rack and first gear or the second rack and second gear of the present invention;
fig. 7 is a schematic diagram of a switching-off and switching-on display mechanism of the present invention;
FIG. 8 is a schematic diagram of the structure of the brake and the brake of the brake and brake opening display mechanism of the present invention;
fig. 9 is a schematic diagram of the connection of a rotating shaft and rotating blades of the present invention.
In the figure: the cam driving mechanism 1, the switch-on/off display mechanism 2, the first cam 3, the first driving rod 4, the thread structure 5, the first rack 6, the thread groove 7, the first slot 8, the first slide block 9, the first gear 10, the rotation shaft 11, the display panel 12, the rotation blade 13, the bearing 14, the second slide block 15, the electric push rod 16, the first slide groove 17, the pulley 18, the first baffle 19, the fixed pile 20 the first guide groove 21, the second gear 22, the second rack 23, the second slot 24, the third slide block 25, the second transmission rod 26, the fourth slide block 27, the second slide groove 28, the second baffle 29, the second cam 30, the connecting rod transmission mechanism 31, the third transmission rod 32, the connecting rod 33, the push rod 34, the through groove 35, the through hole 36, the second guide groove 37 and the rotary switching-on and switching-off operation hole 38.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1 to 9, the present invention provides a technical solution:
an anti-misoperation interlocking mechanism of a gas-insulated metal-enclosed switch is shown in fig. 1 or 2 and comprises a cam transmission mechanism 1, wherein the cam transmission mechanism 1 comprises a first cam 3 and a first transmission rod 4 fixedly arranged on the first cam 3, as shown in fig. 1, a first guide groove 21 is sleeved on the outer ring of the first transmission rod 4, as shown in fig. 5, a thread structure 5 is arranged at the other end of the first transmission rod 4, as shown in fig. 4, the first transmission rod 4 is in threaded connection with a thread groove 7 arranged in a first rack 6 through the thread structure 5, a first slotted hole 8 is arranged in the other end of the first rack 6, the first slotted hole 8 is in sliding connection with a first sliding block 9, as shown in fig. 6, the first rack 6 and a first gear 10 are meshed for rotation, as shown in fig. 1, the first slotted hole 8 moves up and down along the first sliding block 9 to enable the first rack 6 to drive the first gear 10 to rotate, a rotating shaft 11 is fixedly arranged at the center of the first gear 10, as shown in fig. 9, in order to enable an operator to intuitively and clearly know the opening and closing conditions of the load switch cabinet before operating the load switch cabinet, an misoperation-preventing interlocking mechanism and a misoperation-preventing device of the gas-insulated metal-enclosed switch are provided with an opening and closing display mechanism 2, the opening and closing display mechanism 2 comprises a display plate 12 and a rotating blade 13, the left end part of the rotating shaft 11 penetrates through the display plate 12 of the opening and closing display mechanism 2 to be connected with the rotating blade 13, as shown in fig. 1, a word for distinguishing the closing and opening states of the load switch cabinet is displayed on the display plate 13, and the right end part of the rotating shaft 11 is fixed on a support through a bearing 14 as shown in fig. 1.
As shown in fig. 1, the cam driving mechanism 1 further includes a second slider 15 and an electric push rod 16 fixed on the second slider 15, where the electric push rod 16 can implement automatic operation, the second slider 15 is movably connected with the first cam 3, and the electric push rod 16 is used to push the second slider 15 to slide on the first chute 17, so that the first cam 3 can move up and down, as shown in fig. 3, in order to better avoid misoperation of an operator when the switch cabinet is closed, a pulley 18 is fixedly installed at the bottom of the second slider 15, and first baffles 19 limiting the sliding distance of the second slider 15 are disposed at the left and right ends of the first chute 17.
The right side of the rotating shaft 11 is fixedly connected with the second gear 22, the second gear 22 is meshed with the second rack 23 for rotation, the second slot 24 is formed in the upper end of the second rack 23, the second slot 24 is slidably connected with the third slider 25 mounted in the second slot 24, the lower end of the second rack 23 is connected with the second transmission rod 26, the fourth slider 27 slides up and down in the second chute 28, the second baffle 29 limiting the sliding distance of the fourth slider 27 is arranged at the left end and the right end of the second chute 28, the second baffle 29 limiting the sliding distance of the fourth slider 27 is movably connected with one side of the second cam 30, the other side of the second cam 30 is fixedly provided with a connecting rod transmission mechanism 31, the connecting rod transmission mechanism 31 comprises a third transmission rod 32 and a connecting rod 33 hinged with one end of the third transmission rod 32, the other end of the connecting rod 33 is connected with a guide post 37, and the middle part of the connecting rod 33 is movably connected with the connecting rod 37, and the middle part of the connecting rod 33 is movably connected with the guide post 37.
The misoperation preventing interlocking device of the gas-insulated metal-enclosed switch comprises a load switch operating mechanism and the misoperation preventing interlocking mechanism of the gas-insulated metal-enclosed switch, wherein the load switch operating mechanism is provided with a rotary switching-on and switching-off operating hole, and the right end of the push rod 34 can extend into the rotary switching-on and switching-off operating hole 38.
The operating principle of the misoperation preventing interlocking mechanism and the misoperation preventing interlocking device of the gas insulated metal-enclosed switch is as follows:
in the initial state, the display panel 12 of the opening and closing display mechanism 2 displays that the load switch cabinet is in an opening and closing state, firstly, the electric push rod 16 is utilized to push the second slide block 15 to slide on the first slide groove 17, in the process that the second slide block 15 moves forwards, the first cam 3 of the pushing cam transmission mechanism 1 is connected with the first transmission rod 4 to move upwards, the first rack 6 fixed on the first transmission rod 4 through the threaded structure 5 moves upwards, the first rack 6 moves upwards to drive the first gear 10 to rotate clockwise by utilizing the gear meshing effect, the rotation of the first gear 10 drives the rotary blade 13 fixed on the rotary shaft 11 to rotate clockwise, the load switch cabinet is displayed in the closing state on the display panel 12 of the opening and closing display mechanism 2, the rotation of the rotary shaft 11 drives the second gear 22 fixedly connected on the rotary shaft 11 to rotate, the second rack 23 is driven by the rotation of the second gear 22, the second transmission rod 26 drives the fourth slide block 27 to move upwards because the second transmission rod 26 is connected with the lower end of the second rack 23, in the process that the fourth slide block 27 moves upwards, the third connection rod 30 is pushed to move leftwards by the fourth slide rod 27 to move leftwards, and simultaneously the third connection rod 32 is also driven by the third connection rod 33 to move leftwards, and simultaneously, the connecting rod 33 is connected with the third connection rod 33 is also in the opening and closing mechanism is in the opening and closing state is in the right, and the connecting rod 32 is in the state is in the error-preventing linkage.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an anti-misoperation interlocking mechanism of a gas-insulated metal-enclosed switch, which is characterized in that, including cam drive mechanism (1) and divide-shut brake display mechanism (2), cam drive mechanism (1) include first cam (3) and set firmly first transfer line (4) on first cam (3), the other end of first transfer line (4) has screw thread structure (5), first transfer line (4) are through screw thread structure (5) and set up in screw thread groove (7) in first rack (6), first slotted hole (8) are seted up to the other end inside of first rack (6), first slotted hole (8) are interior to be connected with first slider (9) sliding, first rack (6) and first gear (10) meshing rotation, first slotted hole (8) are along first slider (9) reciprocates and can make first rack (6) drive first gear (10) rotation, the center fixed mounting of first gear (10) has axis of rotation (11), the axis of rotation (11) the other end of rotation (12) are passed through in the rotation of first rack (6) and are connected with display bracket (14) on the right side of rotation axis of rotation (13), the rotating shaft (11) is used for driving the second gear (22) to enable the second transmission rod (26) to drive the fourth sliding block (27) to enable the push rod (34) of the connecting rod transmission mechanism (31) to be in plug-in fit with the rotary switching-on and switching-off operation hole (38).
2. The misoperation-preventing interlocking mechanism of a gas-insulated metal-enclosed switch according to claim 1, wherein the cam transmission mechanism (1) further comprises a second sliding block (15) and an electric push rod (16) fixed on the second sliding block (15), the second sliding block (15) is movably connected with the first cam (3), and the electric push rod (16) is used for pushing the second sliding block (15) to slide on the first sliding groove (17) so that the first cam (3) can move up and down.
3. The misoperation-preventing interlocking mechanism of a gas-insulated metal-enclosed switch according to claim 2, characterized in that pulleys (18) are fixedly installed at the bottom of the second sliding block (15), and first baffles (19) limiting the sliding distance of the second sliding block (15) are arranged at the left end and the right end of the first sliding groove (17).
4. The misoperation-preventing interlocking mechanism of the gas-insulated metal-enclosed switch according to claim 1, wherein the display panel (13) is provided with a character for distinguishing the closing and opening states of the load switch cabinet, and the outer ring of the first transmission rod (4) is sleeved with a first guide groove (21).
5. The misoperation-preventing interlocking mechanism of a gas-insulated metal-enclosed switch according to claim 1, wherein the right side of the rotating shaft (11) is fixedly connected with a second gear (22), the second gear (22) is meshed with a second rack (23) for rotation, a second slot hole (24) is formed in the upper end of the second rack (23), the second slot hole (24) is in sliding connection with a third slider (25) installed in the second slot hole (24), the lower end of the second rack (23) is connected with a second transmission rod (26), the fourth slider (27) slides up and down in a second chute (28), a second baffle (29) limiting the sliding distance of the fourth slider (27) is arranged at the left end and the right end of the second chute (28), and one end of the fourth slider (27) far away from the second chute (28) is movably connected with one side of a second cam (30).
6. The misoperation prevention interlocking mechanism of a gas-insulated metal-enclosed switch according to claim 1, characterized in that the link transmission mechanism (31) comprises a third transmission rod (32), a connecting rod (33) hinged with one end of the third transmission rod (32), and a push rod (34) hinged with the other end of the connecting rod (33), and the other end of the push rod (34) is in sliding connection with a through hole (36) formed in a through groove (35).
7. The misoperation-preventing interlocking mechanism of the gas-insulated metal-enclosed switch according to claim 6, wherein the outer ring of the third transmission rod (32) is sleeved with a second guide groove (37), and the middle part of the rod body of the connecting rod (33) is movably connected with the fixed pile (20).
8. An anti-misoperation interlocking device of a gas-insulated metal-enclosed switch is characterized by comprising a load switch operating mechanism and the anti-misoperation interlocking mechanism of the gas-insulated metal-enclosed switch, wherein the load switch operating mechanism is provided with a rotary switching-on and switching-off operating hole (38), and the right end of a push rod (34) can extend into the rotary switching-on and switching-off operating hole (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310896825.5A CN116613023B (en) | 2023-07-21 | 2023-07-21 | Misoperation preventing interlocking mechanism and device for gas-insulated metal-enclosed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310896825.5A CN116613023B (en) | 2023-07-21 | 2023-07-21 | Misoperation preventing interlocking mechanism and device for gas-insulated metal-enclosed switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116613023A true CN116613023A (en) | 2023-08-18 |
| CN116613023B CN116613023B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310896825.5A Active CN116613023B (en) | 2023-07-21 | 2023-07-21 | Misoperation preventing interlocking mechanism and device for gas-insulated metal-enclosed switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116613023B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128845A (en) * | 2016-08-25 | 2016-11-16 | 苏州科陆东自电气有限公司 | The anti-misoperation interlocking mechanism of gas-insulated metal enclosed switchgear and device |
| CN109216099A (en) * | 2017-06-30 | 2019-01-15 | 河南平芝高压开关有限公司 | A kind of GIS device, switching device and its three-phase transmission mechanism |
| CN208478177U (en) * | 2018-05-24 | 2019-02-05 | 福建中能电气有限公司 | A kind of device being used to indicate three-station location status |
| CN210156280U (en) * | 2019-08-23 | 2020-03-17 | 陈兆锦 | Operation interlocking mechanism of fixed switch cabinet |
| CN114783803A (en) * | 2022-05-24 | 2022-07-22 | 江苏德纪特电气有限公司 | Interlocking device for grounding switch of metal-enclosed switchgear and cable chamber door |
| CN116190130A (en) * | 2022-12-14 | 2023-05-30 | 河南平高电气股份有限公司 | Switching-on/off indicating device and switch operating mechanism |
-
2023
- 2023-07-21 CN CN202310896825.5A patent/CN116613023B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128845A (en) * | 2016-08-25 | 2016-11-16 | 苏州科陆东自电气有限公司 | The anti-misoperation interlocking mechanism of gas-insulated metal enclosed switchgear and device |
| CN109216099A (en) * | 2017-06-30 | 2019-01-15 | 河南平芝高压开关有限公司 | A kind of GIS device, switching device and its three-phase transmission mechanism |
| CN208478177U (en) * | 2018-05-24 | 2019-02-05 | 福建中能电气有限公司 | A kind of device being used to indicate three-station location status |
| CN210156280U (en) * | 2019-08-23 | 2020-03-17 | 陈兆锦 | Operation interlocking mechanism of fixed switch cabinet |
| CN114783803A (en) * | 2022-05-24 | 2022-07-22 | 江苏德纪特电气有限公司 | Interlocking device for grounding switch of metal-enclosed switchgear and cable chamber door |
| CN116190130A (en) * | 2022-12-14 | 2023-05-30 | 河南平高电气股份有限公司 | Switching-on/off indicating device and switch operating mechanism |
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| Publication number | Publication date |
|---|---|
| CN116613023B (en) | 2023-09-26 |
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