CN113161916A - Split type maintenance grounding device of middle-arranged switch cabinet - Google Patents
Split type maintenance grounding device of middle-arranged switch cabinet Download PDFInfo
- Publication number
- CN113161916A CN113161916A CN202110422814.4A CN202110422814A CN113161916A CN 113161916 A CN113161916 A CN 113161916A CN 202110422814 A CN202110422814 A CN 202110422814A CN 113161916 A CN113161916 A CN 113161916A
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- grounding
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- switch cabinet
- hook
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- 238000012423 maintenance Methods 0.000 title abstract description 7
- 241000446313 Lamella Species 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000005491 wire drawing Methods 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 12
- 230000005611 electricity Effects 0.000 abstract description 10
- 239000004020 conductor Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000722921 Tulipa gesneriana Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Classifications
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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
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses a split type maintenance grounding device of a central switch cabinet, which comprises a vehicle body part, an operating part and a grounding part, wherein the operating part is arranged on the vehicle body part, the grounding part is arranged on a handcart rail arranged on the central switch cabinet, and the operating part is movably connected with the grounding part. The electroscope that the insulating bracing piece front end of turning arm set up can make originally only can indirectly test the electricity and become directly to test the electricity, more accords with the regulation requirement.
Description
Technical Field
The invention relates to an overhauling grounding device of an electrical cabinet, in particular to an overhauling grounding device for a central switch cabinet.
Background
With the continuous updating application of substation equipment in an electric power system, indoor 10kV (20 kV) mid-set switch cabinets are widely adopted in substations of the electric power system, as the mid-set switch cabinets are closed in a set, common wiring cannot be used in the switch cabinets, and grounding handcarts matched with manufacturers are used when a special grounding disconnecting link is arranged on the outgoing line side, such as a bus, a main transformer low-voltage side (10 kV, 20 kV) switch cabinet and the like, need grounding during maintenance. Although the grounding handcart is applied to solve the grounding problem of the overhaul equipment, the grounding handcart also has great problems in practical use, such as the weight is too large (about 150-. Therefore, the regulation of one person for monitoring is violated, the operation time is delayed, and the injury to personnel can be caused in the using process. The second grounding handcart is not universal, one type of grounding handcart occupies more space due to more configuration, and the corresponding ground handcart needs to be searched when in use.
Disclosure of Invention
The invention aims to provide an overhauling grounding device of a middle-mounted switch cabinet, which can be universally used for all middle-mounted switch cabinets and has small integral volume and convenient carrying.
The invention is realized by adopting the following technical means: a split type maintenance grounding device of a central switch cabinet comprises a vehicle body part, an operation part and a grounding part, wherein the operation part is arranged on the vehicle body part, the grounding part is arranged on a handcart rail arranged on the central switch cabinet, and the operation part is movably connected with the grounding part;
the grounding part comprises a plum blossom contact wire clamp, a grounding plate and a grounding connecting wire, and the plum blossom contact wire clamp is connected with the grounding plate through the grounding connecting wire;
the operating part comprises an operating vehicle, an earth plate hook wire drawing and operating handles, wherein the four corners of the ground of the operating vehicle are provided with movable wheels, the earth plate hook is movably connected to the front end of the operating vehicle, the operating handles are arranged at the rear end of the operating vehicle, the earth plate hook wire drawing is arranged between the operating handles and the earth plate hook, and the rear end of the earth plate is provided with a clamping groove matched with the earth plate hook;
the automobile body portion include the frame, the frame is L type structure, sets up the action wheel on the horizontal edge of frame, sets up the backup pad on the perpendicular edge of frame, sets up the operation portion in the backup pad the rear portion of operation car sets up the track board perpendicularly, slide in the track board and set up three turning arms, the free end of turning arm is connected with the insulating part rear portion of plum blossom contact fastener, the action wheel divide into the walking wheel that sets up in the frame front side and set up the universal wheel at the operation car rear side set up locking device on the universal wheel.
The plum blossom contact fastener include supporter, lamella form contact, extension spring, the supporter include relative parallel arrangement's lamella form contact support ring and lamella form contact collar, set up contact support connecting rod between lamella form contact support ring and lamella form contact collar, the afterbody of lamella form contact rotate and connect lamella form contact collar, the anterior joint of lamella form contact is on lamella form contact support ring, plum blossom contact fastener include supporter, lamella form contact, the take-up spring, the supporter include relative parallel arrangement's lamella form contact support ring and lamella form contact collar, set up the connecting rod between lamella form contact support ring and lamella form contact collar, the afterbody of lamella form contact rotate and connect lamella form contact collar, the anterior joint of lamella form contact is on lamella form contact support ring, the take-up spring is the extension spring of an end to end connection, the extension spring cover in the lamella form contact outside in order to guarantee that lamella form contact inwards tightens up all the time, set up the fixed slot that makes the tightening spring block wherein on lamella form contact and tightening spring contact's position.
The contact support connecting rod set up 3, evenly set up 2 lamelliform contact blades in the space that per two contact support connecting rods are injectd.
The grounding connecting line is fixedly connected to the petal-shaped contact piece mounting ring and further comprises an attraction column, the petal-shaped contact piece mounting ring is sleeved on the attraction column, and the attraction column is in contact connection with the free end of the crank arm.
The attraction column is made of insulating materials, a metal sheet is arranged at the position, far away from the petal-shaped contact piece, of the attraction column, and an electromagnet is arranged at the corresponding position of the free end of the crank arm.
The top of the grounding plate hook is provided with a hook operation crank arm, the hook operation crank arm connects the top of the grounding plate hook, the grounding plate hook wire drawing is connected with the hook operation crank arm, and the hook operation crank arm is also provided with a pressure spring to maintain the initial position.
The frame is also provided with a lifting device, the action end of the lifting device is fixedly connected with the bottom of the supporting plate, and the frame is also provided with an auxiliary lifting rod for maintaining the lifting posture of the supporting plate;
the auxiliary lifting rod comprises a vertical channel steel, an H-shaped supporting piece and a fixed pulley device, the vertical channel steel is fixedly arranged on the frame, the bottom of the H-shaped supporting piece extends into the vertical channel steel and can freely slide in the vertical channel steel, the fixed pulley device is arranged at the bottom of the H-shaped supporting piece and comprises a pulley supporting plate and pulleys, the pulleys are arranged on two surfaces of the pulley supporting plate, the size of the fixed pulley device is equal to that of the bottom of the H-shaped supporting piece, and the vertical edge of the H-shaped supporting piece is fixedly connected with the supporting plate through an angle steel;
the lifting device is a jack which is arranged at the bottom of the frame, a central piece is arranged on the supporting plate, and a mandril of the jack is in contact with the central piece.
Still include width adjusting device, width adjusting device includes handle, positive and negative bolt pass the turning arm in proper order, set up on the turning arm with positive and negative bolt matched with screw thread, set up the handle in one side of positive and negative bolt, still set up the bearing that is used for accepting positive and negative bolt on the frame, when positive and negative bolt is rotatory, the turning arm is close to thereupon or keeps away from.
The frame is further provided with an advancing and retreating device, the advancing and retreating device comprises a handle and a bolt, the handle is connected with one end of the bolt, the bolt vertically penetrates through the vertical channel steel, and threads matched with the bolt are arranged on the vertical channel steel.
The grounding device is divided into a grounding part and an operation mounting part, the grounding part is left on a fixed contact of a conductor after being mounted to ensure that the maintenance equipment is reliably grounded, the frame and the switch cabinet adopt electromagnet fixation to replace the existing frame, and the electromagnet fixes the grounding wire clamp to separate the grounding device from the operating frame, so that a heavy grounding handcart is changed into a light grounding connecting device. The electroscope that the insulating bracing piece front end of turning arm set up can become the operation that originally can only test the electricity indirectly and can directly test the electricity, more accords with the regulation requirement.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the grounding part of the present invention;
FIG. 3 is a schematic structural view of the vehicle frame of the present invention;
FIG. 4 is a schematic diagram of a tulip contact configuration of the present invention;
FIG. 5 is a schematic view of the support structure of the present invention;
fig. 6 is a schematic view of the lobe configuration of the present invention.
Wherein, the device comprises a plum blossom contact wire clamp 1, a grounding plate 2, a grounding connecting wire 3, an operating vehicle 4, a grounding plate hook 5, a grounding plate hook 6, a grounding plate hook wire drawing 7, an operating handle 8, a clamping groove 9, a frame 10, a support plate 10, a track plate 11, a crank arm 12, an electromagnet 13, a hook operating crank arm 14, a jack 15, an adjusting handle 16, a moving handle 17, an electricity testing device 18, an insulating support rod 19, a compression spring 20, a magnet switch 21, a frame fixing electromagnet 22, a battery 23 and a grounding contact 24;
1-1-1 petal-shaped contact piece supporting ring, 1-1-2 petal-shaped contact piece mounting ring, 1-2 petal-shaped contact piece, 1-3 tightening spring, 1-4 fixing groove, 1-5 suction column, 15-1 chain and 15-2 rotating gear.
Detailed Description
The invention is described in further detail below with reference to the drawings of the specification:
the invention relates to a split type maintenance grounding device of a central switch cabinet, which comprises a vehicle body part, an operating part and a grounding part, wherein the operating part is arranged on the vehicle body part;
the grounding part comprises a plum blossom contact wire clamp 1, a grounding plate 2 and a grounding connecting wire 3, the plum blossom contact wire clamp 1 is connected with the grounding plate 2 through the grounding connecting wire 3, and the grounding plate 2 is pressed on a protruded grounding connecting point with a spring on the switch cabinet when in use;
the operation part comprises an operation vehicle 4, an earth plate hook 5, an earth plate hook wire drawing 6 and an operation handle 7, wherein four corners of the ground of the operation vehicle 4 are provided with movable wheels, the earth plate hook 5 is movably connected to the front end of the operation vehicle 4, the operation handle 7 is arranged at the rear end of the operation vehicle 4, the earth plate hook wire drawing 6 is arranged between the operation handle 4 and the earth plate hook 5, and the rear end of the earth plate 2 is provided with a clamping groove 8 matched with the earth plate hook 5;
the automobile body portion include frame 9, the frame is L type structure, sets up the action wheel on the horizontal edge of frame 9, sets up backup pad 10 on the perpendicular edge of frame, sets up the operation portion in backup pad 10 the rear portion of operation car sets up track board 11 perpendicularly, slide in the track board 11 and set up three turning arms 12, the free end of turning arm 12 is connected with plum blossom contact fastener 1's bottom.
The plum blossom contact clamp 1 comprises a support body, petal-shaped contact pieces 1-2 and tightening springs 1-3, wherein the support body comprises petal-shaped contact piece support rings 1-1-1 and petal-shaped contact piece installation rings 1-1-2 which are arranged in parallel relatively, contact support connecting rods 1-1-3 are arranged between the petal-shaped contact piece support rings 1-1-1 and the petal-shaped contact piece installation rings 1-1-2, the tail parts of the petal-shaped contact pieces 1-2 are rotatably connected with the petal-shaped contact piece installation rings 1-1-2, the front parts of the petal-shaped contact pieces 1-2 are clamped on the petal-shaped contact piece support rings 1-1-1, the petal-shaped contact pieces 1-2 are fixed in position by one tightening spring 1-3, and further, the tightening springs 1-3 are tension springs connected end to end, the tension spring is sleeved on the outer side of the flap contact piece 1-2 to ensure that the flap contact piece 1-2 is always tightened inwards, and a fixing groove 1-4 for clamping the tightening spring 1-2 is arranged at the contact position of the flap contact piece 1-2 and the tightening spring 1-3.
Furthermore, 3 contact supporting connecting rods 1-1-3 are arranged, and 2 petal-shaped contact pieces 1-2 are uniformly arranged in a space defined by every two contact supporting connecting rods 1-1-3.
The grounding connection wire 3 is fixedly connected to the petal-shaped contact piece mounting rings 1-1-2, and further, the petal-shaped contact pieces 1-2 are connected in series through soft copper wires and then connected to the grounding connection wire 3.
Specifically, the attraction columns 1-5 are made of insulating materials, so that when the flap-shaped contact pieces 1-2 contact electrical equipment in misoperation, voltage cannot be transmitted to a vehicle body part through the connecting levers 12 to cause electric shock of an operator, metal pieces are arranged at positions, far away from the flap-shaped contact pieces 1-2, of the attraction columns 1-5 and used for being connected with the connecting levers 12, and electromagnets 13 are arranged at free ends of the connecting levers 12 and used for attracting the attraction columns.
The top of the grounding plate hook 5 is provided with a hook operation crank arm 14, the hook operation crank arm 14 connects the top of the grounding plate hook 5, the grounding plate hook wire drawing 6 is connected with the hook operation crank arm 14, and the hook operation crank arm 14 is also provided with a pressure spring to maintain the initial position.
The frame is also provided with a lifting device, the action end of the lifting device is fixedly connected with the support plate 10, and the frame is also provided with an auxiliary lifting rod for maintaining the lifting posture of the support plate;
the auxiliary lifting rod comprises a vertical channel steel, an H-shaped supporting piece and a fixed pulley device, the vertical channel steel is fixedly arranged on the frame, the bottom of the H-shaped supporting piece extends into the vertical channel steel and can freely slide in the vertical channel steel, the fixed pulley device is arranged at the bottom of the H-shaped supporting piece and comprises a pulley supporting plate and pulleys, the pulleys are arranged on two surfaces of the pulley supporting plate, the size of the fixed pulley device is equal to that of the bottom of the H-shaped supporting piece, and the vertical edge of the H-shaped supporting piece is fixedly connected with the supporting plate through an angle steel;
specifically, the lifting device is a jack 15, the jack 15 is arranged at the bottom of the frame, the central piece is arranged on the supporting plate 10, a rotating gear 15-2 is arranged at the upper part of a mandril of the jack, a chain 15-1 is sleeved on the gear, one end of the chain is downwards fixed on the central piece, the other end of the chain is downwards fixed at the bottom of the frame, and when a jack rod moves upwards, the chain is driven to enable the central piece to move upwards.
The invention also comprises a width adjusting device, wherein the width adjusting device comprises an adjusting handle 16 and a positive and negative bolt, the positive and negative bolt sequentially penetrates through the crank arm 12, threads matched with the positive and negative bolt are arranged on the crank arm 12, a handle is arranged on one side of the positive and negative bolt, a bearing used for bearing the positive and negative bolt is further arranged on the track plate 11, and when the positive and negative bolt rotates, the crank arm 12 approaches or moves away from the positive and negative bolt.
The frame is further provided with an advancing and retreating device, the advancing and retreating device comprises an advancing and retreating handle 17 and a bolt, the advancing and retreating handle 17 is connected with one end of the bolt, the bolt vertically penetrates through the vertical channel steel, and threads matched with the bolt are arranged on the vertical channel steel.
When the equipment is overhauled, the overhauling equipment needs to be in a power-off state, but the possibility that the power is forgotten to be powered off due to negligence exists. Therefore, in order to ensure the safety of operators, the front end of the crank arm is provided with the electricity testing device 18, the electricity testing device 18 is firstly contacted with the grounding conductor in the cabinet body compared with the plum blossom contact wire clamp, if the switch cabinet is not powered off, the electricity testing device gives a warning to remind the operators to stop working, so that personal safety or equipment damage accidents caused by electrification and grounding are prevented.
Further, the connecting lever on set up insulating support rod 19 and be used for setting up and test the electric installation, specific saying so, insulating support rod 19 comprises two insulating tubes that are parallel to each other and a vertical insulating tube end to end, one of them insulating tube cup joints on connecting lever 12, and the tip of insulating tube is worn out to the free end of connecting lever, set up on another insulating tube and test electric installation 18, still set up pressure spring 20 on the insulating tube at connecting lever place, can guarantee like this to test electric installation 18 earlier than plum blossom contact fastener 1 further with the internal conductor contact of cabinet, and when the connecting lever continues to move forward, the insulating tube bracing piece can not influence its fortune of operation connecting lever because of the excessive part of pressure spring 20 absorption.
In the invention, the end surface of the free end of the crank arm is provided with the electromagnet, the electromagnet is matched with the attraction column,
the following is described in detail by specific examples:
when in use, after the height and the width of the operation frame and the distance between the grounding plate and the crank arm are adjusted according to requirements, closing the grounding wire to operate the electromagnetic magnet switch, positioning and fixing the iron plate at the rear end of the contact insulating rod on the grounding wire (electromagnet adsorption), adjusting the width of the grounding plate, placing the grounding plate into a handcart walking track of the switch cabinet, the locking hooks are connected to the supporting plate (the supporting piece is fixedly connected to the central piece), the central piece is moved forwards through the crank, the grounding plate firstly opens the sealing door of the conductor contact and is pressed against the inherent grounding pile head in the advancing process (meeting the requirement of firstly connecting the grounding end), then, the electric pole is continuously pushed forwards until an electroscope on the insulating support rod contacts the conductor to test the electricity (the operation is stopped when electricity exists), the plum blossom contact is pressed on the conductor contact by continuously pushing forwards after no voltage exists, the grounding is completed, then the power supply of the electromagnet is disconnected, and a grounding plate lock catch is pulled open (the grounding wire is kept on the conductor) to exit the operation frame.
Claims (8)
1. The utility model provides a split type earthing device that overhauls of central-positioned cubical switchboard which characterized in that: the handcart comprises a handcart body part, an operating part and a grounding part, wherein the operating part is arranged on the handcart body part, the grounding part is arranged on a handcart rail arranged on a central switch cabinet, and the operating part is movably connected with the grounding part;
the grounding part comprises a plum blossom contact wire clamp, a grounding plate and a grounding connecting wire, and the plum blossom contact wire clamp is connected with the grounding plate through the grounding connecting wire;
the operating part comprises an operating vehicle, an earth plate hook wire drawing and operating handles, wherein the four corners of the ground of the operating vehicle are provided with movable wheels, the earth plate hook is movably connected to the front end of the operating vehicle, the operating handles are arranged at the rear end of the operating vehicle, the earth plate hook wire drawing is arranged between the operating handles and the earth plate hook, and the rear end of the earth plate is provided with a clamping groove matched with the earth plate hook;
the automobile body portion include the frame, the frame is L type structure, sets up the action wheel on the horizontal edge of frame, sets up the backup pad on the perpendicular edge of frame, sets up the operation portion in the backup pad the rear portion of operation car sets up the track board perpendicularly, slide in the track board and set up three turning arms, the free end of turning arm is connected with the insulating part rear portion of plum blossom contact fastener, the action wheel divide into the walking wheel that sets up in the frame front side and set up the universal wheel at the operation car rear side set up locking device on the universal wheel.
2. The split type overhauling grounding device of the central switch cabinet as set forth in claim 1, wherein: plum blossom contact fastener include supporter, lamella form contact, tighten up the spring, the supporter include relative parallel arrangement's lamella form contact support ring and lamella form contact collar, set up the connecting rod between lamella form contact support ring and lamella form contact collar, the afterbody of lamella form contact rotate and connect lamella form contact collar, the anterior joint of lamella form contact is on lamella form contact support ring, it is the extension spring of an end to tighten up the spring cover in order to guarantee that lamella form contact tightens up all the time, set up on the position of lamella form contact and the contact of tightening up the spring and make the fixed slot that tightens up the spring card and go into wherein.
3. The split type overhauling grounding device of the central switch cabinet as set forth in claim 2, wherein: the contact support connecting rod set up 3, evenly set up 2 lamelliform contact blades in the space that per two connecting rods are injectd.
4. The split type overhauling grounding device of the central switch cabinet as set forth in claim 2, wherein: the grounding connecting line is fixedly connected to the petal-shaped contact piece mounting ring and further comprises an attraction column, the petal-shaped contact piece mounting ring is sleeved on the attraction column, and the attraction column is in contact connection with the free end of the crank arm;
the attraction column is made of insulating materials, a metal sheet is arranged at the position, far away from the petal-shaped contact piece, of the attraction column, and an electromagnet is arranged at the corresponding position of the free end of the crank arm.
5. The split type overhauling grounding device of the central switch cabinet as set forth in claim 1, wherein: the top of the grounding plate hook is provided with a hook operation crank arm, the hook operation crank arm connects the top of the grounding plate hook, the grounding plate hook wire drawing is connected with the hook operation crank arm, and the hook operation crank arm is also provided with a pressure spring to maintain the initial position.
6. The split type overhauling grounding device of the central switch cabinet as set forth in claim 1, wherein: the frame is also provided with a lifting device, the action end of the lifting device is fixedly connected with the bottom of the supporting plate, and the frame is also provided with an auxiliary lifting rod for maintaining the lifting posture of the supporting plate;
the auxiliary lifting rod comprises a vertical channel steel, an H-shaped supporting piece and a fixed pulley device, the vertical channel steel is fixedly arranged on the frame, the bottom of the H-shaped supporting piece extends into the vertical channel steel and can freely slide in the vertical channel steel, the fixed pulley device is arranged at the bottom of the H-shaped supporting piece and comprises a pulley supporting plate and pulleys, the pulleys are arranged on two surfaces of the pulley supporting plate, the size of the fixed pulley device is equal to that of the bottom of the H-shaped supporting piece, and the vertical edge of the H-shaped supporting piece is fixedly connected with the supporting plate through an angle steel;
the lifting device is a jack which is arranged at the bottom of the frame, a central piece is arranged on the supporting plate, and a mandril of the jack is in contact with the central piece.
7. The split type overhauling grounding device of the central switch cabinet as set forth in claim 1, wherein: still include width adjusting device, width adjusting device includes handle, positive and negative bolt pass the turning arm in proper order, set up on the turning arm with positive and negative bolt matched with screw thread, set up the handle in one side of positive and negative bolt, still set up the bearing that is used for accepting positive and negative bolt on the frame, when positive and negative bolt is rotatory, the turning arm is close to thereupon or keeps away from.
8. The split type overhauling grounding device of the central switch cabinet as set forth in claim 1, wherein: the frame is further provided with an advancing and retreating device, the advancing and retreating device comprises a handle and a bolt, the handle is connected with one end of the bolt, the bolt vertically penetrates through the vertical channel steel, and threads matched with the bolt are arranged on the vertical channel steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422814.4A CN113161916A (en) | 2021-04-20 | 2021-04-20 | Split type maintenance grounding device of middle-arranged switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422814.4A CN113161916A (en) | 2021-04-20 | 2021-04-20 | Split type maintenance grounding device of middle-arranged switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113161916A true CN113161916A (en) | 2021-07-23 |
Family
ID=76868888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110422814.4A Pending CN113161916A (en) | 2021-04-20 | 2021-04-20 | Split type maintenance grounding device of middle-arranged switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113161916A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114629040A (en) * | 2022-05-12 | 2022-06-14 | 江苏德纪特电气有限公司 | Metal-enclosed switchgear grounding switch locking device and switchgear thereof |
| CN116885609A (en) * | 2023-05-22 | 2023-10-13 | 临沂市罗庄区应急管理局 | Portable emergency switch cabinet |
-
2021
- 2021-04-20 CN CN202110422814.4A patent/CN113161916A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114629040A (en) * | 2022-05-12 | 2022-06-14 | 江苏德纪特电气有限公司 | Metal-enclosed switchgear grounding switch locking device and switchgear thereof |
| CN116885609A (en) * | 2023-05-22 | 2023-10-13 | 临沂市罗庄区应急管理局 | Portable emergency switch cabinet |
| CN116885609B (en) * | 2023-05-22 | 2024-03-22 | 临沂市罗庄区应急管理局 | Portable emergency switch cabinet |
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