CN108538673B - Earthing switch closes and divides instruction and blocking device - Google Patents
Earthing switch closes and divides instruction and blocking device Download PDFInfo
- Publication number
- CN108538673B CN108538673B CN201810549555.XA CN201810549555A CN108538673B CN 108538673 B CN108538673 B CN 108538673B CN 201810549555 A CN201810549555 A CN 201810549555A CN 108538673 B CN108538673 B CN 108538673B
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- Prior art keywords
- switching
- locking
- linkage rod
- brake
- closing
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Classifications
-
- 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
- H01H31/003—Earthing switches
-
- 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
- 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"
- H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a grounding switch on-off indicating and locking device, which comprises a mounting plate, a rotating shaft mechanism, a switching-on and switching-off mechanism and a locking mechanism, wherein the mounting plate is provided with a first mounting hole; the rotating shaft mechanism comprises an operating main shaft, and an opening and closing cam and a locking cam are arranged on the operating main shaft; the switching-on and switching-off mechanism comprises a switching-on and switching-off linkage rod, a switching-on moving contact, a switching-off moving contact, a switching-on static contact and a switching-off static contact; the bottom of the switching-on/off brake linkage rod is provided with a switching-on/off brake resetting mechanism; the locking mechanism comprises a locking linkage rod and a locking piece; the locking piece comprises a locking fixing plate and a locking hole, and the bent end part of the locking linkage rod can be inserted into the locking hole to form locking; and a locking reset pressure plate is arranged on the locking linkage rod, and a locking reset spring is sleeved on the locking linkage rod between the locking reset pressure plate and the locking guide plate. The invention combines the opening and closing brake with the locking together, ensures that the locking is effective when opening the brake, avoids electrified misoperation, and releases the locking under the rotation of the operation main shaft when closing the brake, thereby being reliable and safe.
Description
Technical Field
The invention belongs to the technical field of electrical equipment, and particularly relates to a closing and opening indicating and locking device for a grounding switch.
Background
over the years, statistics of a large number of electrical accidents show that human body electric shock injuries and deaths and electrical equipment accidents are often in direct relation with the technical business level of electrical workers, and the electrical workers must operate strictly according to electrical safety work rules. The cubical switchboard is an important electrical equipment, wherein, when cutting off the power supply because of the maintenance, need earlier the separating brake circuit breaker, fall isolator again, earthing switch closes a floodgate back cabinet door side and can open, and this is exactly the operating regulation that must obey, otherwise will cause electrified maloperation, has the potential safety hazard. However, in the actual operation process, the cabinet door is often opened under the condition that the grounding switch is not switched on, so that the live working of operators is caused, and the danger coefficient is high.
Therefore, how to combine the closing and opening of the grounding switch with the locking device together to ensure that the locking is effective when the grounding switch is opened, thereby avoiding the electrified misoperation, and the locking is released when the grounding switch is closed, thereby carrying out the next operation is very important.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned deficiencies in the prior art and to provide an indicating and locking device for opening and closing a grounding switch.
In order to achieve the purpose, the invention adopts the following technical scheme: a grounding switch on-off indicating and locking device comprises a mounting plate, a rotating shaft mechanism, a switching-on-off mechanism and a locking mechanism;
The mounting plate is fixedly connected with a cabinet door of the switch cabinet;
The rotating shaft mechanism comprises an operation main shaft, and the operation main shaft is rotatably connected with a crank arm of the switch cabinet; the operating main shaft is provided with a switching-on/off cam and a locking cam;
The switching-on and switching-off mechanism comprises a switching-on and switching-off linkage rod, a switching-on moving contact, a switching-off moving contact, a switching-on static contact and a switching-off static contact; the opening moving contact and the closing moving contact are arranged on the opening and closing linkage rod, and the opening fixed contact and the closing fixed contact are arranged on the mounting plate; the switching-off moving contact and the switching-off static contact form a switching-off normally closed switch, and the switching-on moving contact and the switching-on static contact form a switching-on normally open switch; the bottom of the switching-on/off brake linkage rod is provided with a switching-on/off brake resetting mechanism, and the switching-on/off brake resetting mechanism is fixedly connected with the mounting plate; the top of the switching-on/off linkage rod is in contact connection with the switching-on/off cam;
the locking mechanism comprises a locking linkage rod and a locking piece; the locking piece comprises a locking fixing plate, a locking hole is formed in the locking fixing plate, and the locking fixing plate is fixedly connected with the mounting plate; the top of the locking linkage rod is in contact connection with the locking cam, the bottom of the locking linkage rod is bent upwards, and the bent end of the locking linkage rod can be inserted into the locking hole to form locking; the mounting plate is provided with a locking guide plate, the locking guide plate is provided with a locking guide hole, and the locking linkage rod penetrates through the locking guide hole; the interlocking device is characterized in that an interlocking reset pressing plate is arranged on the interlocking linkage rod and is positioned on the upper portion of the interlocking guide plate, an interlocking reset spring is sleeved on the interlocking linkage rod between the interlocking reset pressing plate and the interlocking guide plate, and two ends of the interlocking reset spring are fixedly connected with the interlocking reset pressing plate and the interlocking guide plate respectively.
Preferably, the opening and closing cam and the locking cam are both disc cams.
Preferably, the switching-on/off mechanism further comprises a power supply, a switching-on indicator light and a switching-off indicator light; the power supply, the switching-on normally-open switch and the switching-on indicating lamp are connected in series to form a switching-on loop, the power supply, the switching-off normally-closed switch and the switching-off indicating lamp are connected in series to form a switching-off loop, and the switching-on loop and the switching-off loop are connected in parallel.
Preferably, the switching-on/off reset mechanism comprises a switching-on/off reset spring and a switching-on/off reset fixing plate, the top end of the switching-on/off reset spring is fixedly connected with the bottom end of the switching-on/off linkage rod, the bottom end of the switching-on/off reset spring is fixedly connected with the switching-on/off reset fixing plate, and the switching-on/off reset fixing plate is fixedly connected with the mounting plate.
Preferably, the mounting plate is provided with a closing and opening brake guide plate, the closing and opening brake guide plate is provided with a closing and opening brake guide hole, and the closing and opening brake linkage rod penetrates through the closing and opening brake guide hole.
preferably, the closing and opening brake pressing plate is fixedly arranged at the top end of the closing and opening brake linkage rod and is in contact connection with the closing and opening brake cam.
preferably, a locking pressing plate is fixedly arranged at the top end of the locking linkage rod and is in contact connection with the locking cam.
preferably, the switching on/off mechanism is provided with a plurality of sets in parallel.
preferably, the opening and closing cam and the locking cam are equal in size and are aligned left and right.
The invention provides a grounding switch on-off indicating and locking device, which has the following principle:
1. opening and closing simultaneously:
when the brake is switched off, the operation main shaft rotates to enable one end, close to the axis, of the brake switching cam to be in contact with the brake switching pressing plate, so that the brake switching linkage rod is located at the uppermost end, a brake switching moving contact of the brake switching linkage rod is in contact with a brake switching static contact, at the moment, a brake switching loop formed by the power supply, the brake switching normally closed switch and the brake switching indicator lamp is switched on, and the brake switching indicator lamp is turned on to prompt that the grounding switch is in a brake switching-off state; and meanwhile, the locking linkage rod is also positioned at the uppermost end, so that the bending end of the locking linkage rod is clamped into the locking hole to realize locking, and the condition that the grounding switch is effectively locked when the switch is switched off is ensured.
2. closing and unblocking
when the grounding switch is switched from a closed state to an open state, the closing movable contact of the closing and opening linkage rod is contacted with the closing static contact, at the moment, a closing loop consisting of a power supply, a closing normally open switch and a closing indicating lamp is switched on due to the closing of the normally open switch, and the closing indicating lamp is on to prompt that the grounding switch is in the closed state; meanwhile, the locking linkage rod moves downwards (in the process, the downward movement of the locking linkage rod compresses a locking reset spring, and when the grounding switch is switched from closed to open, the compressed locking reset spring enables the locking linkage rod to reset upwards), so that the bent end of the locking linkage rod is separated downwards from the locking hole, and the locking of the grounding switch is released during the switching-on.
the invention has the beneficial effects that:
according to the invention, the switching-on and switching-off of the grounding switch are realized by operating the switching-on and switching-off cam and the switching-on and switching-off reset spring on the main shaft, so that the whole operation is simple and convenient, and the switching is simple and practical; meanwhile, the closing and opening brake and the locking are combined together, so that the locking is effective during the opening brake, the electrified misoperation is avoided, and the locking is also released under the rotation of the operation main shaft during the closing brake, so that the safety is realized.
drawings
FIG. 1 is a schematic perspective view of the structure of the on/off indicating and locking device of the grounding switch of the present invention during opening;
FIG. 2 is a schematic front view of the structure of the closing/opening indicating and locking device of the grounding switch of the present invention during opening;
FIG. 3 is a schematic perspective view of the closing/opening indicating and locking device of the grounding switch of the present invention;
FIG. 4 is a schematic front view of the structure of the closing and opening indicating and locking device of the grounding switch of the present invention during closing;
FIG. 5 is a schematic perspective view of the construction of the mounting plate of the present invention;
FIG. 6 is a front elevational view in schematic form of the mounting plate of the present invention;
FIG. 7 is a schematic top view of the construction of the mounting plate of the present invention;
FIG. 8 is a schematic structural view of the switching linkage rod of the present invention;
FIG. 9 is a schematic view of the construction of the blocking linkage of the present invention;
The device comprises a mounting plate 1, an operating main shaft 2, an opening and closing cam 3, a locking cam 4, an opening and closing linkage rod 5, a closing movable contact 6, an opening movable contact 7, an opening fixed contact 8, an opening fixed contact 9, an opening reset spring 10, an opening and closing reset fixing plate 11, an opening and closing guide plate 12, an opening and closing guide hole 13, an opening and closing pressing plate 14, a locking linkage rod 15, a locking fixing plate 16, a locking hole 17, a locking guide plate 18, a locking guide hole 19, a locking reset pressing plate 20, a locking reset spring 21 and a locking pressing plate 22.
Detailed Description
the invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1-4, an on/off indicating and locking device for a grounding switch comprises a mounting plate 1, a rotating shaft mechanism, an on/off switching mechanism and a locking mechanism;
the mounting plate 1 is fixedly connected with a cabinet door of the switch cabinet;
The rotating shaft mechanism comprises an operation main shaft 2, and the operation main shaft 2 is rotatably connected with a crank arm of the switch cabinet; the operating main shaft 2 is provided with a switching-on/off cam 3 and a locking cam 4;
The switching-on and switching-off mechanism comprises a switching-on and switching-off linkage rod 5, a switching-off moving contact 6, a switching-on moving contact 7, a switching-off static contact 8 and a switching-on static contact 9; the opening moving contact 6 and the closing moving contact 7 are arranged on the opening and closing linkage rod 5, as shown in fig. 8, wherein the opening moving contact 6 is positioned at the upper part of the closing moving contact 7, the opening static contact 8 and the closing static contact 9 are arranged on the mounting plate 1, as shown in fig. 5-7, wherein the opening static contact 8 is positioned at the upper part of the closing static contact 9; the opening moving contact 6 and the opening static contact 8 form an opening normally closed switch, namely the opening moving contact 6 and the opening static contact 8 are contacted to form a closed switch at the beginning; the closing moving contact 7 and the closing static contact 9 form a closing normally open switch; the bottom of the switching-on/off linkage rod 5 is provided with a switching-on/off reset mechanism which is convenient for the switching-on/off linkage rod 5 to reset upwards, and the switching-on/off reset mechanism is fixedly connected with the mounting plate 1; the top of the switching-on/off brake linkage rod 5 is in contact connection with a switching-on/off brake cam 3 wheel, namely, the operation spindle 2 rotates to drive the switching-on/off brake cam 3 to rotate, and the switching-on/off brake cam 3 is in contact connection with the switching-on/off brake linkage rod 5 to convert the rotation of the switching-on/off brake cam 3 into the up-and-down motion of the switching-on/off brake linkage rod 5;
The locking mechanism comprises a locking linkage rod 15 and a locking piece; as shown in fig. 5-7, the locking member includes a locking fixing plate 16, a locking hole 17 is formed on the locking fixing plate 16, and the locking fixing plate 16 is fixedly connected with the mounting plate 1; the top of the locking linkage rod 15 is in contact connection with the locking cam 4, namely the operation spindle 2 rotates to drive the locking cam 4 to rotate, and the contact connection of the locking cam 4 and the locking linkage rod 15 converts the rotation of the locking cam 4 into the up-and-down motion of the locking linkage rod 15; as shown in fig. 9, the bottom of the locking linkage rod 15 is bent upwards, and the bent end of the locking linkage rod 15 can be inserted into the locking hole 17 to form a lock; a locking guide plate 18 is arranged on the mounting plate 1, a locking guide hole 19 is formed in the locking guide plate 18, the locking linkage rod 15 penetrates through the locking guide hole 19, and the locking guide hole 19 plays a role in limiting and guiding the locking linkage rod 15; the interlocking device is characterized in that an interlocking reset pressing plate 20 is arranged on the interlocking linkage rod 15, the interlocking reset pressing plate 20 is located at the upper part of the interlocking guide plate 18, an interlocking reset spring 21 is sleeved on the interlocking linkage rod 15 between the interlocking reset pressing plate 20 and the interlocking guide plate 18, and two ends of the interlocking reset spring 21 are fixedly connected with the interlocking reset pressing plate 20 and the interlocking guide plate 18 respectively.
Preferably, the opening and closing cam 3 and the locking cam 4 are both disc cams.
preferably, the switching-on/off mechanism further comprises a power supply, a switching-on indicator light and a switching-off indicator light; the power supply, the switching-on normally open switch and the switching-on indicating lamp are connected in series to form a switching-on loop, the power supply, the switching-off normally closed switch and the switching-off indicating lamp are connected in series to form a switching-off loop, and the switching-on loop and the switching-off loop are connected in parallel; when the switch is switched on, the switch-on indicator lamp is on, the switch-off indicator lamp is off, and when the switch is switched off, the switch-on indicator lamp is on, and the switch-on indicator lamp is off, so that the switch-off state and the switch-off state are respectively prompted.
Preferably, as shown in fig. 1 to 4, the switching-on/off reset mechanism includes a switching-on/off reset spring 10 and a switching-on/off reset fixing plate 11, the top end of the switching-on/off reset spring 10 is fixedly connected with the bottom end of the switching-on/off linkage rod 5, the bottom end of the switching-on/off reset spring 10 is fixedly connected with the switching-on/off reset fixing plate 11, and the switching-on/off reset fixing plate 11 is fixedly connected with the mounting plate 1; when the switching-on is changed into the switching-off, the switching-on and switching-off reset spring 10 is compressed, and when the switching-on is changed into the switching-off, the compressed switching-on and switching-off reset spring 10 enables the switching-on and switching-off linkage rod 5 to reset upwards.
preferably, the mounting plate 1 is provided with a closing and opening guide plate 12, the closing and opening guide plate 12 is provided with a closing and opening guide hole 13, the closing and opening linkage rod 5 penetrates through the closing and opening guide hole 13, and the closing and opening guide hole 13 plays a role in limiting and guiding the closing and opening linkage rod 5.
Preferably, the top end of the switching linkage rod 5 is fixedly provided with a switching pressing plate 14, and the switching pressing plate 14 is in contact connection with the switching cam 3.
Preferably, a locking pressing plate 22 is fixedly arranged at the top end of the locking linkage rod 15, and the locking pressing plate 22 is in contact connection with the locking cam 4.
Preferably, the switching on/off mechanism is provided with a plurality of sets in parallel, so as to meet the requirement of the number of the output terminals.
Preferably, the opening and closing cam 3 and the locking cam 4 are equal in size and are aligned left and right.
The utility model provides a ground switch closes branch and indicates and blocking device which the specific implementation mode is:
1. Opening and closing simultaneously:
As shown in fig. 1-2, during opening, the main shaft 2 is operated to rotate, so that one end of the opening and closing cam 3, which is close to the axis, is contacted with the opening and closing pressing plate 14, so that the opening and closing linkage rod 5 is positioned at the uppermost end, the opening moving contact 6 of the opening and closing linkage rod 5 is contacted with the opening static contact 8, at this time, an opening loop composed of the power supply, the opening normally closed switch and the opening indicator light is switched on, and the opening indicator light is turned on to prompt that the grounding switch is in an opening state; meanwhile, the locking linkage rod 15 is also positioned at the uppermost end, so that the bent end of the locking linkage rod 15 is clamped into the locking hole 17 to realize locking, and the locking of the grounding switch during brake opening is guaranteed to be effective.
2. Closing and unblocking
As shown in fig. 3-4, during closing, the operation spindle 2 rotates to make one end of the closing and opening cam 3, which is far from the axis, contact with the closing and opening pressing plate 14, so as to make the closing and opening linkage rod 5 move downwards (in the process, the downward movement of the closing and opening linkage rod 5 compresses the closing and opening return spring 10, when the grounding switch is changed from closing to opening, the compressed closing and opening return spring 10 causes the closing and opening linkage rod 5 to return upwards), so that the closing moving contact 7 of the closing and opening linkage rod 5 contacts with the closing static contact 9, and at the moment, a closing loop composed of the power supply, the closing normally open switch and the closing indicator lamp is switched on due to the closing of the closing normally open switch, and the closing indicator lamp is on to prompt that the grounding switch is in a closing state; meanwhile, the locking linkage rod 15 also moves downwards (in the process, the downward movement of the locking linkage rod 15 compresses the locking reset spring 21, and when the grounding switch is switched from closed to open, the compressed locking reset spring 21 enables the locking linkage rod 15 to reset upwards), so that the bent end of the locking linkage rod 15 is downwards separated from the locking hole 17, and the locking of the grounding switch is released during the switching-on.
according to the invention, the switching-on and switching-off of the grounding switch are realized by operating the switching-on and switching-off cam 3 and the switching-on and switching-off reset spring 10 on the main shaft 2, so that the whole operation is simple and convenient, and the switching is simple and practical; meanwhile, the closing and opening brake and the locking are combined together, so that the locking is effective during the opening brake, the electrified misoperation is avoided, and the locking is also released under the rotation of the operation main shaft during the closing brake, so that the safety is realized.
in the description of the present invention, it is to be understood that the terms "left", "right", "front", "rear", "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the present invention, and it should be understood by those skilled in the art that various modifications and changes may be made without inventive efforts based on the technical solutions of the present invention.
Claims (7)
1. a grounding switch on-off indicating and locking device is characterized by comprising a mounting plate, a rotating shaft mechanism, a switch-on-off mechanism and a locking mechanism;
The mounting plate is fixedly connected with a cabinet door of the switch cabinet;
The rotating shaft mechanism comprises an operation main shaft, and the operation main shaft is rotatably connected with a crank arm of the switch cabinet; the operating main shaft is provided with a switching-on/off cam and a locking cam;
the switching-on and switching-off mechanism comprises a switching-on and switching-off linkage rod, a switching-on moving contact, a switching-off moving contact, a switching-on static contact and a switching-off static contact; the opening moving contact and the closing moving contact are arranged on the opening and closing linkage rod, and the opening fixed contact and the closing fixed contact are arranged on the mounting plate; the switching-off moving contact and the switching-off static contact form a switching-off normally closed switch, and the switching-on moving contact and the switching-on static contact form a switching-on normally open switch; the bottom of the switching-on/off brake linkage rod is provided with a switching-on/off brake resetting mechanism, and the switching-on/off brake resetting mechanism is fixedly connected with the mounting plate; the top of the switching-on/off linkage rod is in contact connection with the switching-on/off cam;
The switching-on and switching-off mechanism also comprises a power supply, a switching-on indicating lamp and a switching-off indicating lamp; the power supply, the switching-on normally open switch and the switching-on indicating lamp are connected in series to form a switching-on loop, the power supply, the switching-off normally closed switch and the switching-off indicating lamp are connected in series to form a switching-off loop, and the switching-on loop and the switching-off loop are connected in parallel;
The switching-on/off reset mechanism comprises a switching-on/off reset spring and a switching-on/off reset fixing plate, the top end of the switching-on/off reset spring is fixedly connected with the bottom end of the switching-on/off linkage rod, the bottom end of the switching-on/off reset spring is fixedly connected with the switching-on/off reset fixing plate, and the switching-on/off reset fixing plate is fixedly connected with the mounting plate;
The locking mechanism comprises a locking linkage rod and a locking piece; the locking piece comprises a locking fixing plate, a locking hole is formed in the locking fixing plate, and the locking fixing plate is fixedly connected with the mounting plate; the top of the locking linkage rod is in contact connection with the locking cam, the bottom of the locking linkage rod is bent upwards, and the bent end of the locking linkage rod can be inserted into the locking hole to form locking; the mounting plate is provided with a locking guide plate, the locking guide plate is provided with a locking guide hole, and the locking linkage rod penetrates through the locking guide hole; the interlocking device is characterized in that an interlocking reset pressing plate is arranged on the interlocking linkage rod and is positioned on the upper portion of the interlocking guide plate, an interlocking reset spring is sleeved on the interlocking linkage rod between the interlocking reset pressing plate and the interlocking guide plate, and two ends of the interlocking reset spring are fixedly connected with the interlocking reset pressing plate and the interlocking guide plate respectively.
2. The earthing switch on-off indicating and locking device as claimed in claim 1, wherein the on-off cam and the locking cam are both disc cams.
3. the on-off indicating and locking device of the grounding switch as claimed in claim 1, wherein the mounting plate is provided with an on-off brake guide plate, the on-off brake guide plate is provided with an on-off brake guide hole, and the on-off brake linkage rod passes through the on-off brake guide hole.
4. The on-off indicating and locking device of the grounding switch as claimed in claim 1, wherein an on-off pressing plate is fixedly arranged at the top end of the on-off linkage rod, and the on-off pressing plate is in contact connection with the on-off cam.
5. the on-off indicating and locking device of the grounding switch as claimed in claim 1, wherein a locking pressing plate is fixedly arranged at the top end of the locking linkage rod, and the locking pressing plate is in contact connection with the locking cam.
6. The on-off indicating and locking device of claim 1, wherein the on-off mechanism comprises a plurality of sets and is arranged in parallel.
7. the earthing switch on-off indicating and locking device as claimed in claim 1, wherein the on-off cam and the locking cam are equal in size and aligned left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549555.XA CN108538673B (en) | 2018-05-31 | 2018-05-31 | Earthing switch closes and divides instruction and blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549555.XA CN108538673B (en) | 2018-05-31 | 2018-05-31 | Earthing switch closes and divides instruction and blocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108538673A CN108538673A (en) | 2018-09-14 |
| CN108538673B true CN108538673B (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810549555.XA Active CN108538673B (en) | 2018-05-31 | 2018-05-31 | Earthing switch closes and divides instruction and blocking device |
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| Country | Link |
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| CN (1) | CN108538673B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426540A (en) * | 2019-08-09 | 2019-11-08 | 安徽一天电气技术股份有限公司 | The mechanical lock of split-phase step switch |
| CN110993396B (en) * | 2019-09-30 | 2022-06-14 | 伊顿电力设备有限公司 | Auxiliary switch device for grounding switch and grounding switch comprising same |
| CN111854581B (en) * | 2020-07-29 | 2021-11-09 | 国联(广东)检测集团有限公司 | Bridge deck road flatness detection system for bridge engineering construction and detection method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201498907U (en) * | 2009-08-13 | 2010-06-02 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker interlocking device |
| CN103928251B (en) * | 2014-05-07 | 2015-12-09 | 万控集团有限公司 | A kind of ground connection console switch interlock |
| CN105070600B (en) * | 2015-07-28 | 2018-02-06 | 上海电科电器科技有限公司 | The malfunction instruction device of breaker |
| CN206619532U (en) * | 2017-03-23 | 2017-11-07 | 上海西门子开关有限公司 | The interlocking mechanism of earthed switch and its switch cubicle |
| CN207217339U (en) * | 2017-10-13 | 2018-04-10 | 上海上科电器（集团）有限公司 | A kind of earthing or grounding means for being easy to reliable ground |
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| CN108538673A (en) | 2018-09-14 |
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