CN113432000A - Portable transformer substation function verification device - Google Patents
Portable transformer substation function verification device Download PDFInfo
- Publication number
- CN113432000A CN113432000A CN202110704684.3A CN202110704684A CN113432000A CN 113432000 A CN113432000 A CN 113432000A CN 202110704684 A CN202110704684 A CN 202110704684A CN 113432000 A CN113432000 A CN 113432000A
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- motor
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- lifting
- fluted disc
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- 238000012795 verification Methods 0.000 title claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention belongs to the technical field of electric power verification equipment, and particularly relates to a portable substation function verification device; the lifting mechanism comprises a lower box body, a first motor and a lifting part are arranged in the lower box body, the first motor is connected with a transmission worm, the lifting part comprises a worm wheel, a lifting screw penetrates through the worm wheel and is connected with a lower platform, a rotary fluted disc and a second motor are arranged on the lower platform, the second motor is connected with the rotary fluted disc through a first driving shaft, a driving gear is meshed with the rotary fluted disc, the top of the rotary fluted disc is connected with an upper platform, a dovetail guide plate is arranged on the upper platform, a movable flat plate and a third motor are arranged, the third motor is sequentially connected with the second driving shaft and a driving bevel gear, a push-pull vertical plate is arranged on the movable flat plate, the transmission screw is in threaded connection with the push-pull vertical plate, one end of the transmission screw is connected with a driven bevel gear, and the driven bevel gear is meshed with the driving bevel gear; the device has the advantages of reasonable structure, convenience and quickness in operation, capability of quickly and accurately adjusting the height and the position of the device, reduction in labor intensity and improvement in operation efficiency.
Description
Technical Field
The invention belongs to the technical field of power verification equipment, and particularly relates to a portable substation function verification device.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system, the transformer substation in a power plant is a boosting transformer substation, and is used for boosting the electric energy generated by a generator and then feeding the electric energy into a high-voltage power grid, the electric equipment in the transformer substation is divided into primary equipment and secondary equipment, wherein the primary equipment is equipment for directly producing, transmitting, distributing and using the electric energy and mainly comprises a transformer, a high-voltage circuit breaker, an isolating switch, a bus, a lightning arrester, a capacitor, a reactor and the like, the secondary equipment in the transformer substation is equipment for measuring, monitoring, controlling and protecting the operation conditions of the primary equipment and the system and mainly comprises a relay protection device, an automatic device, a measurement and control device, a metering device, an automatic system and direct current equipment for providing power for the secondary equipment, and the functional verification of each equipment and system in the transformer substation is required to be regularly performed in the operation process, in order to ensure that the portable substation function verifying device can normally run and achieve system function expectation, the height and the position of the portable substation function verifying device need to be frequently adjusted to adapt to different devices in the verifying operation process, and the current verifying device is inconvenient in height and position adjustment and affects the operation efficiency.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a portable substation function verification device which is reasonable in structure, convenient and quick to operate and capable of quickly and accurately adjusting the height and the position of the device so as to improve the operation efficiency.
The purpose of the invention is realized as follows: the portable substation function verification device comprises a lower box body, wherein a first motor and a lifting part are arranged in the lower box body, the first motor is connected with a transmission worm, the lifting part comprises limiting plates, the limiting plates are fixedly connected to an inner wall plate of the lower box body, balls are arranged on opposite surfaces of the two limiting plates, a worm wheel is arranged between the two limiting plates, the end face of the worm wheel is connected with a seat plate, a guide seat is arranged on the seat plate, the guide seat is in rolling connection with the balls, the worm wheel is in meshing connection with the worm, a lifting screw penetrates through the lower box body, the limiting plates, the seat plate and the worm wheel, the lifting screw is in threaded connection with the worm wheel, and the top end of the lifting screw is fixedly connected to a lower platform; the top of the lower platform is fixedly connected with an inner plate of a rotary fluted disc, the bottom of the lower platform is provided with a second motor, the second motor is connected with a first driving shaft, the first driving shaft is connected with a driving gear, the driving gear is meshed with an outer fluted disc of the rotary fluted disc, the top of the outer fluted disc of the rotary fluted disc is fixedly connected with an upper platform, a dovetail guide plate is arranged on the upper platform, the dovetail guide plate is connected with a movable flat plate in a sliding manner, and a verification device main body is arranged on the movable flat plate; the upper platform is provided with a third motor, the third motor is connected with a second driving shaft, the end part of the second driving shaft is provided with a driving bevel gear, the movable flat plate is provided with a push-pull vertical plate, the upper platform is provided with a second vertical plate and a third vertical plate, a transmission screw penetrates through the second vertical plate, the third vertical plate and the push-pull vertical plate, the transmission screw is in threaded connection with the push-pull vertical plate, the transmission screw is in rotating connection with the second vertical plate and the third vertical plate, one end of the transmission screw is connected with a driven bevel gear, and the driven bevel gear is in meshing connection with the driving bevel gear.
The lifting guide pipe is arranged in the lower box body, the top end of the lifting guide pipe extends out of the lower box body, a lifting guide rod is connected to the inside of the lifting guide pipe in a sliding mode, and the top end of the lifting guide rod is fixedly connected to the lower platform.
The top and the bottom of the lower box body are both provided with guide short pipes, and the lifting screw penetrates through the guide short pipes and is in sliding connection with the guide short pipes.
The first motor and the second motor are both stepping speed reduction motors, and the third motor is a double-output stepping speed reduction motor.
The upper platform is provided with a first vertical plate, the first vertical plate is arranged on two sides of the third motor, and the second driving shaft penetrates through the first vertical plate and is rotatably connected with the first vertical plate.
The invention has the beneficial effects that: according to the portable substation function verification device, the first motor and the lifting part are arranged in the lower box body, the first motor can drive the transmission worm to rotate, the transmission worm drives the worm wheel to rotate, the ball on the limiting plate is matched with the guide seat on the seat plate, the upper position and the lower position of the worm wheel are limited, the friction force in the rotation process of the worm wheel is reduced, the worm wheel is connected with the lifting screw through threads to drive the lifting screw to ascend or descend, and the lifting screw drives the lower platform to ascend and descend together, so that the height of the main body of the verification device can be conveniently and quickly adjusted; a second motor on the lower platform drives a driving gear to rotate through a first driving shaft, the driving gear drives an upper platform on the top of the upper platform to rotate through meshing connection with a rotary fluted disc outer fluted disc, meanwhile, a third motor on the upper platform drives a transmission screw rod to rotate through the second driving shaft, a driving bevel gear and a driven bevel gear, the transmission screw rod drives a push-pull vertical plate to move along the length direction of the push-pull vertical plate through threaded connection with the push-pull vertical plate, so that a moving flat plate is driven to move along a dovetail guide plate, the second motor is matched with the third motor, and the position of a difficult device main body in a plane can be conveniently and quickly adjusted; the portable substation function verification device is reasonable in structure, convenient and quick to operate, and capable of quickly and accurately adjusting the height and the position of the device, reducing labor intensity and improving operation efficiency.
Drawings
Fig. 1 is a schematic front view of a portable substation function verification device according to the present invention.
Fig. 2 is a schematic top view of the portable substation function verification device according to the present invention.
Fig. 3 is a schematic side view of the upper part of the portable substation function verification device according to the present invention.
Fig. 4 is a schematic structural diagram of dovetail guide plate connection of the portable substation function verification device of the present invention.
Fig. 5 is a schematic front view of the elevating portion of the portable substation function verification device according to the present invention.
Fig. 6 is a schematic side view of the elevating portion of the portable substation function verification device according to the present invention.
In the figure: 1. the device comprises a lower box body 2, a lifting guide pipe 3, a transmission worm 4, a lifting guide rod 5, a second motor 6, a lower platform 7, a first driving shaft 8, a driving gear 9, a rotary fluted disc 10, a first vertical plate 11, a third motor 12, a driving bevel gear 13, a driven bevel gear 14, a second vertical plate 15, a transmission screw 16, a push-pull vertical plate 17, a verification device main rest 18, a third vertical plate 19, a moving flat plate 20, a dovetail guide plate 21, an upper platform 22, a lifting part 23, a first motor 24, a second driving shaft 25, a lifting screw 26, a limiting plate 27, a ball 28, a guide seat 29, a seat plate 30 and a worm wheel.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 6, the portable substation function verification apparatus, which includes a lower case 1, a first motor 23 and a lifting part 22 are arranged in the lower box body 1, the first motor 23 is connected with a transmission worm 3, the lifting part 22 comprises limit plates 26, the limit plates 26 are fixedly connected to the inner wall plate of the lower box body 1, balls 27 are arranged on the opposite surfaces of the two limit plates 26, a worm wheel 30 is arranged between the two limit plates 26, the end face of the worm wheel 30 is connected with a seat plate 29, the seat plate 29 is provided with a guide seat 28, the guide seat 28 is connected with the ball 27 in a rolling way, the worm wheel 30 is connected with the worm 3 in a meshing way, the lifting screw 25 passes through the lower box body 1, the limit plate 26, the seat plate 29 and the worm wheel 30, the lifting screw rod 25 is in threaded connection with the worm wheel 30, and the top end of the lifting screw rod 25 is fixedly connected to the lower platform 6; the top of the lower platform 6 is fixedly connected with an inner plate of a rotary fluted disc 9, the bottom of the lower platform 6 is provided with a second motor 5, the second motor 5 is connected with a first driving shaft 7, the first driving shaft 7 is connected with a driving gear 8, the driving gear 8 is meshed with an outer fluted disc of the rotary fluted disc 9, the top of the outer fluted disc of the rotary fluted disc 9 is fixedly connected with an upper platform 21, a dovetail guide plate 20 is arranged on the upper platform 21, the dovetail guide plate 20 is connected with a movable flat plate 19 in a sliding manner, and a verification device main body 17 is arranged on the movable flat plate 19; the upper platform 21 is provided with a third motor 11, the third motor 11 is connected with a second driving shaft 24, the end part of the second driving shaft 24 is provided with a driving bevel gear 12, the movable flat plate 19 is provided with a push-pull vertical plate 16, the upper platform 21 is provided with a second vertical plate 14 and a third vertical plate 18, a transmission screw 15 penetrates through the second vertical plate 14, the third vertical plate 18 and the push-pull vertical plate 16, the transmission screw 15 is in threaded connection with the push-pull vertical plate 16, the transmission screw 15 is in rotational connection with the second vertical plate 14 and the third vertical plate 18, one end of the transmission screw 15 is connected with a driven bevel gear 13, and the driven bevel gear 13 is in meshed connection with the driving bevel gear 12.
According to the portable substation function verification device, the first motor 23 and the lifting part 22 are arranged in the lower box body 1, the first motor 23 can drive the transmission worm 3 to rotate, the transmission worm 3 drives the worm wheel 30 to rotate, the ball 27 on the limiting plate 26 is matched with the guide seat 28 on the seat plate 29, the upper position and the lower position of the worm wheel 30 are limited, the friction force in the rotation process of the worm wheel 30 is reduced, the worm wheel 30 is connected with the lifting screw 25 through threads to drive the lifting screw 25 to ascend or descend, and the lifting screw 25 drives the lower platform 6 to ascend and descend together, so that the height of the verification device main body 17 can be conveniently and quickly adjusted; the second motor 5 on the lower platform 6 drives the driving gear 8 to rotate through the first driving shaft 7, the driving gear 8 drives the upper platform 21 at the top of the upper platform to rotate through the meshed connection with the external fluted disc of the rotary fluted disc 9, meanwhile, the third motor 11 on the upper platform 21 drives the transmission screw rod 15 to rotate through the second driving shaft 24, the driving bevel gear 12 and the driven bevel gear 13, the transmission screw rod 15 drives the push-pull vertical plate 16 to move along the length direction of the push-pull vertical plate 16 through the threaded connection with the push-pull vertical plate 16, so as to drive the moving flat plate 19 to move along the dovetail guide plate 20, and the second motor 5 is matched with the third motor 11, so that the position of the difficult device main body 17 in a plane can be conveniently and quickly adjusted; the portable substation function verification device is reasonable in structure, convenient and quick to operate, and capable of quickly and accurately adjusting the height and the position of the device, reducing labor intensity and improving operation efficiency.
Example 2
As shown in fig. 1 to 6, the portable substation function verification apparatus, which includes a lower case 1, a first motor 23 and a lifting part 22 are arranged in the lower box body 1, the first motor 23 is connected with a transmission worm 3, the lifting part 22 comprises limit plates 26, the limit plates 26 are fixedly connected to the inner wall plate of the lower box body 1, balls 27 are arranged on the opposite surfaces of the two limit plates 26, a worm wheel 30 is arranged between the two limit plates 26, the end face of the worm wheel 30 is connected with a seat plate 29, the seat plate 29 is provided with a guide seat 28, the guide seat 28 is connected with the ball 27 in a rolling way, the worm wheel 30 is connected with the worm 3 in a meshing way, the lifting screw 25 passes through the lower box body 1, the limit plate 26, the seat plate 29 and the worm wheel 30, the lifting screw rod 25 is in threaded connection with the worm wheel 30, and the top end of the lifting screw rod 25 is fixedly connected to the lower platform 6; the top of the lower platform 6 is fixedly connected with an inner plate of a rotary fluted disc 9, the bottom of the lower platform 6 is provided with a second motor 5, the second motor 5 is connected with a first driving shaft 7, the first driving shaft 7 is connected with a driving gear 8, the driving gear 8 is meshed with an outer fluted disc of the rotary fluted disc 9, the top of the outer fluted disc of the rotary fluted disc 9 is fixedly connected with an upper platform 21, a dovetail guide plate 20 is arranged on the upper platform 21, the dovetail guide plate 20 is connected with a movable flat plate 19 in a sliding manner, and a verification device main body 17 is arranged on the movable flat plate 19; the upper platform 21 is provided with a third motor 11, the third motor 11 is connected with a second driving shaft 24, the end part of the second driving shaft 24 is provided with a driving bevel gear 12, the movable flat plate 19 is provided with a push-pull vertical plate 16, the upper platform 21 is provided with a second vertical plate 14 and a third vertical plate 18, a transmission screw 15 penetrates through the second vertical plate 14, the third vertical plate 18 and the push-pull vertical plate 16, the transmission screw 15 is in threaded connection with the push-pull vertical plate 16, the transmission screw 15 is in rotational connection with the second vertical plate 14 and the third vertical plate 18, one end of the transmission screw 15 is connected with a driven bevel gear 13, and the driven bevel gear 13 is in meshed connection with the driving bevel gear 12.
For better effect, be provided with lift pipe 2 in the box 1 down, 2 tops of lift pipe stretch out the outside of box 1 down, 2 inside sliding connection of lift pipe has lift guide arm 4, 4 top fixed connection of lift guide arm in platform 6 down, through lift pipe 2 with lift guide arm 4's cooperation improves the stability of 6 lift in-process of lower platform reduces drive mechanism's complexity in the box 1 down.
For better effect, the top and the bottom of the lower box body 1 are both provided with a short guide pipe, and the lifting screw 25 passes through the short guide pipe and is in sliding connection with the short guide pipe, so that the stability of the lifting screw 25 in the lifting process is effectively ensured.
For better effect, first motor 23 with second motor 5 is step reduction motor, third motor 11 is dual output step reduction motor, and transmission structure is simple reasonable, for this device provides stable effectual drive power, guarantees its long-term steady operation.
For better effect, the upper platform 21 is provided with a first vertical plate 10, the first vertical plate 10 is disposed on two sides of the third motor 11, the second driving shaft 24 passes through the first vertical plate 10 and is rotatably connected with the first vertical plate, and the first vertical plate 10 supports and limits the second driving shaft 24, so as to ensure stability of the second driving shaft in the rotating process.
According to the portable substation function verification device, the first motor 23 and the lifting part 22 are arranged in the lower box body 1, the first motor 23 can drive the transmission worm 3 to rotate, the transmission worm 3 drives the worm wheel 30 to rotate, the ball 27 on the limiting plate 26 is matched with the guide seat 28 on the seat plate 29, the upper position and the lower position of the worm wheel 30 are limited, the friction force in the rotation process of the worm wheel 30 is reduced, the worm wheel 30 is connected with the lifting screw 25 through threads to drive the lifting screw 25 to ascend or descend, and the lifting screw 25 drives the lower platform 6 to ascend and descend together, so that the height of the verification device main body 17 can be conveniently and quickly adjusted; the second motor 5 on the lower platform 6 drives the driving gear 8 to rotate through the first driving shaft 7, the driving gear 8 drives the upper platform 21 at the top of the upper platform to rotate through the meshed connection with the external fluted disc of the rotary fluted disc 9, meanwhile, the third motor 11 on the upper platform 21 drives the transmission screw rod 15 to rotate through the second driving shaft 24, the driving bevel gear 12 and the driven bevel gear 13, the transmission screw rod 15 drives the push-pull vertical plate 16 to move along the length direction of the push-pull vertical plate 16 through the threaded connection with the push-pull vertical plate 16, so as to drive the moving flat plate 19 to move along the dovetail guide plate 20, and the second motor 5 is matched with the third motor 11, so that the position of the difficult device main body 17 in a plane can be conveniently and quickly adjusted; the portable substation function verification device is reasonable in structure, convenient and quick to operate, and capable of quickly and accurately adjusting the height and the position of the device, reducing labor intensity and improving operation efficiency.
Claims (5)
1. Portable transformer substation function verification device, it includes box (1) down, its characterized in that: the improved structure is characterized in that a first motor (23) and a lifting part (22) are arranged in the lower box body (1), the first motor (23) is connected with a transmission worm (3), the lifting part (22) comprises limiting plates (26), the limiting plates (26) are fixedly connected onto an inner wall plate of the lower box body (1), balls (27) are arranged on two opposite surfaces of the limiting plates (26), a worm wheel (30) is arranged between the two limiting plates (26), the end face of the worm wheel (30) is connected with a seat plate (29), a guide seat (28) is arranged on the seat plate (29), the guide seat (28) is in rolling connection with the balls (27), the worm wheel (30) is in meshing connection with the worm (3), and a lifting screw (25) penetrates through the lower box body (1), the limiting plates (26), the seat plate (29) and the worm wheel (30), the lifting screw rod (25) is in threaded connection with the worm wheel (30), and the top end of the lifting screw rod (25) is fixedly connected to the lower platform (6); the top of the lower platform (6) is fixedly connected with an inner plate of a rotary fluted disc (9), the bottom of the lower platform (6) is provided with a second motor (5), the second motor (5) is connected with a first driving shaft (7), the first driving shaft (7) is connected with a driving gear (8), the driving gear (8) is meshed with an outer fluted disc of the rotary fluted disc (9), the top of the outer fluted disc of the rotary fluted disc (9) is fixedly connected with an upper platform (21), a dovetail guide plate (20) is arranged on the upper platform (21), the dovetail guide plate (20) is slidably connected with a movable flat plate (19), and a verification device main body (17) is arranged on the movable flat plate (19); a third motor (11) is arranged on the upper platform (21), the third motor (11) is connected with a second driving shaft (24), a driving bevel gear (12) is arranged at the end part of the second driving shaft (24), a push-pull vertical plate (16) is arranged on the movable flat plate (19), a second vertical plate (14) and a third vertical plate (18) are arranged on the upper platform (21), a transmission screw (15) passes through the second vertical plate (14), the third vertical plate (18) and the push-pull vertical plate (16), the transmission screw (15) is in threaded connection with the push-pull vertical plate (16), the transmission screw (15) is rotationally connected with the second vertical plate (14) and the third vertical plate (18), one end of the transmission screw rod (15) is connected with a driven bevel gear (13), and the driven bevel gear (13) is meshed with the driving bevel gear (12) in a connecting mode.
2. The portable substation functionality verification device of claim 1, wherein: the lifting guide pipe (2) is arranged in the lower box body (1), the top end of the lifting guide pipe (2) extends out of the lower box body (1), a lifting guide rod (4) is connected to the inside of the lifting guide pipe (2) in a sliding mode, and the top end of the lifting guide rod (4) is fixedly connected to the lower platform (6).
3. The portable substation functionality verification device of claim 1, wherein: the top and the bottom of the lower box body (1) are provided with guide short pipes, and the lifting screw (25) penetrates through the guide short pipes and is in sliding connection with the guide short pipes.
4. The portable substation functionality verification device of claim 1, wherein: the first motor (23) and the second motor (5) are both stepping speed reduction motors, and the third motor (11) is a double-output stepping speed reduction motor.
5. The portable substation functionality verification device of claim 1, wherein: the upper platform (21) is provided with a first vertical plate (10), the first vertical plate (10) is arranged on two sides of the third motor (11), and the second driving shaft (24) penetrates through the first vertical plate (10) and is connected with the first vertical plate in a rotating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110704684.3A CN113432000A (en) | 2021-06-24 | 2021-06-24 | Portable transformer substation function verification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110704684.3A CN113432000A (en) | 2021-06-24 | 2021-06-24 | Portable transformer substation function verification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113432000A true CN113432000A (en) | 2021-09-24 |
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ID=77754034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110704684.3A Pending CN113432000A (en) | 2021-06-24 | 2021-06-24 | Portable transformer substation function verification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113432000A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114644032A (en) * | 2022-02-24 | 2022-06-21 | 国网浙江省电力有限公司东阳市供电公司 | Anti-toppling switch running trolley |
-
2021
- 2021-06-24 CN CN202110704684.3A patent/CN113432000A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114644032A (en) * | 2022-02-24 | 2022-06-21 | 国网浙江省电力有限公司东阳市供电公司 | Anti-toppling switch running trolley |
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