CN115498544A - Circuit breaker operating device overhauls equipment - Google Patents
Circuit breaker operating device overhauls equipment Download PDFInfo
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- CN115498544A CN115498544A CN202211227412.XA CN202211227412A CN115498544A CN 115498544 A CN115498544 A CN 115498544A CN 202211227412 A CN202211227412 A CN 202211227412A CN 115498544 A CN115498544 A CN 115498544A
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- lifting
- arm
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- moving
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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
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Power Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention provides a circuit breaker operating mechanism maintenance device, comprising: the mobile lifting vehicle comprises a lifting mechanism and a moving mechanism, wherein the lifting mechanism is provided with a lifting force arm, and an electric driving device is arranged in the moving mechanism; the maintenance platform is detachably arranged on the lifting force arm; the balance crane is arranged on one end, close to the lifting mechanism, of the maintenance platform; a balance maintenance platform installed at one side of the maintenance platform; the rotating bracket is arranged on the other side of the maintenance platform; a rotating bracket arm is arranged at the top of the rotating bracket; the two ends of the rotating bracket arm can be provided with clamping and fixing devices; the top of the rotating bracket is also provided with a rotating bracket fixing disc. The multifunctional lifting device has multiple functions, has the functions of lifting, automatic loading, overturning, rotating, fixing, horizontal adjusting and the like, solves the problems of difficulty in dismounting, long time consumption and the like of the circuit breaker operating mechanism, and effectively improves the working efficiency and quality of A repair.
Description
Technical Field
The invention relates to the field of maintenance equipment for circuit breaker operating mechanisms, in particular to maintenance equipment for circuit breaker operating mechanisms.
Background
According to the requirements of 'inspection and test regulations for power equipment', the inspection and repair period of the A-type circuit breaker operating mechanism is 12 years, the outstanding problem of the A-type circuit breaker operating mechanism in the inspection and repair process is the problem of high mechanism cost, and the following problems are found to exist: 1) In the maintenance process, because the mechanical structure of the equipment is complex, the existing dismounting equipment is mostly a crane, a forklift and the like, but the existing dismounting equipment has single function and is heavy, the disassembly using the traditional tools consumes a large amount of manpower and material resources, the power failure time is long, and the equipment is easy to damage.
Disclosure of Invention
In order to solve the problems, the invention provides the maintenance equipment for the circuit breaker operating mechanism, which has the multiple functions of one machine, has the functions of hoisting, lifting, automatic loading, overturning, rotating, fixing, horizontal adjusting and the like, solves the problems of difficult disassembly, long time consumption and the like of the circuit breaker operating mechanism, effectively improves the working efficiency and quality of A maintenance, shortens the power failure time, and provides effective guarantee for the stable operation of a power grid.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a circuit breaker operating mechanism service apparatus comprising:
the mobile lifting vehicle comprises a lifting mechanism and a moving mechanism, wherein the lifting mechanism is provided with a lifting force arm, and an electric driving device is arranged in the moving mechanism;
the maintenance platform is detachably arranged on the lifting force arm and used for providing a working maintenance platform;
the balance crane is arranged on one end, close to the lifting mechanism, of the maintenance platform so as to ensure that the center of gravity is centered during hoisting; the balance crane is used for hoisting a mechanism, a tool or a heavy object to be maintained, so that the maintenance work is convenient to carry out;
a balance maintenance platform which is arranged at one side of the maintenance platform and is used for adjusting the horizontal state of the mechanism needing maintenance;
the rotating bracket is arranged on the other side of the maintenance platform; the top of the rotating bracket is provided with a rotating bracket arm for arranging a mechanism to be maintained; the two ends of the rotating bracket arm can be provided with clamping and fixing devices for clamping the mechanism to be maintained to rotate 360 degrees relative to the rotating bracket, so that the maintenance and detection are convenient; the top of the rotating bracket is also provided with a rotating bracket fixing disc for fixing and locking the rotating bracket arm after the angle of the rotating bracket arm is adjusted to a maintenance mechanism, so that the stability of the mechanism in the maintenance process is ensured.
Further, platform supporting arms are respectively arranged below two sides of the maintenance platform; the platform supporting arm can move out towards the two sides of the maintenance platform and freely select a moving-out angle.
Furthermore, be equipped with the adjustment screw in the platform support arm with freely adjusting support height to the height of maintenance platform is adjusted according to the maintenance condition and is played the fixed stay effect.
Furthermore, the lifting mechanism also comprises a gantry type lifting arm and a lifting motor; the lifting force arm is fixedly connected with the lifting motor so as to bring the maintenance platform to lift or fall along with the lifting motor; the gantry type lifting arm provides lifting support and a lifting track for the lifting motor.
Furthermore, the lifting mechanism also comprises a lifting control box; the lifting control box is connected with the lifting motor and used for controlling the start and stop of the power supply and the rising and falling of the lifting motor.
Furthermore, the moving mechanism comprises moving force arms movably arranged on two sides of the bottom of the gantry type lifting arm; the front end of the power moving arm is provided with a power moving arm wheel.
Furthermore, two moving arm wheels are arranged on each moving arm in a front-back sequence, so that the moving arms can move and steer freely.
Furthermore, the moving mechanism further comprises base moving wheels arranged on two sides of the bottom of the gantry type lifting arm, so that the base moving wheels and the moving force arm support the whole maintenance equipment together, and the whole maintenance equipment can be freely moved and steered.
Furthermore, a free end of the balance crane is provided with a lifting hook for hooking equipment, tools or heavy objects.
Furthermore, the balance crane adopts a hydraulic drive suspension arm to open and close.
The invention provides a circuit breaker operating mechanism maintenance device, comprising: the mobile lifting vehicle comprises a lifting mechanism and a moving mechanism, wherein the lifting mechanism is provided with a lifting force arm, and an electric driving device is arranged in the moving mechanism; the maintenance platform is detachably arranged on the lifting force arm and is used for providing a working maintenance platform; the balance crane is arranged on one end, close to the lifting mechanism, of the maintenance platform so as to ensure that the center of gravity is centered during hoisting; the balance crane is used for hoisting a mechanism to be maintained, a tool or a heavy object, so that maintenance work is facilitated; a balance maintenance platform which is arranged at one side of the maintenance platform and is used for adjusting the horizontal state of the mechanism needing maintenance; a rotating bracket installed at the other side of the maintenance platform; the top of the rotating bracket is provided with a rotating bracket arm for arranging a mechanism to be maintained; the two ends of the rotating bracket arm can be provided with clamping and fixing devices for clamping the mechanism to be maintained to rotate 360 degrees relative to the rotating bracket, so that the maintenance and detection are convenient; the top of the rotating bracket is also provided with a rotating bracket fixing disc so that the rotating bracket arm can be fixed and locked after the angle of the rotating bracket arm is adjusted, and the stability of the mechanism in the maintenance process can be guaranteed. The multifunctional lifting device has multiple functions, has the functions of lifting, automatic loading, overturning, rotating, fixing, horizontal adjusting and the like, solves the problems of difficulty in dismounting, long time consumption and the like of the circuit breaker operating mechanism, effectively improves the working efficiency and quality of A repair, shortens the power failure time, and provides effective guarantee for the stable operation of a power grid.
Drawings
Fig. 1 is a schematic front view of a circuit breaker operating mechanism maintenance device;
fig. 2 is a schematic right view of a circuit breaker operating mechanism maintenance device;
fig. 3 is a left side schematic view of a circuit breaker operating mechanism service device.
Description of the reference numerals: 1-a hook; 2-balance hoisting; 3-rotating the bracket fixing disc; 4-rotating the support arm; 5-balance maintenance platform; 6, maintaining the platform; 7-gantry type lifting mechanism; 8-a lifting motor; 9-a lifting control box; 10-a platform support arm; 11-lifting arm of force; 12-moving force arm wheel; 13-moving the power arm; 14-base moving wheels; 15-driving wheels; 16-moving the joystick; 17-a power assembly; 18-rotating the stent.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the embodiments described are only a few embodiments of the present disclosure, and not all embodiments. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without inventive step, are intended to be within the scope of the present disclosure.
Example one
As shown in fig. 1 to 3, a circuit breaker operating mechanism overhaul apparatus includes:
the mobile lifting vehicle comprises a lifting mechanism and a moving mechanism, wherein the lifting mechanism is provided with a lifting force arm, and an electric driving device is arranged in the moving mechanism;
the maintenance platform is detachably arranged on the lifting force arm and is used for providing a working maintenance platform;
the balance crane is arranged on one end, close to the lifting mechanism, of the maintenance platform so as to ensure that the center of gravity is centered during hoisting; the balance crane is used for hoisting a mechanism, a tool or a heavy object to be maintained, so that the maintenance work is convenient to carry out;
a balance maintenance platform which is arranged at one side of the maintenance platform and is used for adjusting the horizontal state of the mechanism requiring maintenance;
the rotating bracket is arranged on the other side of the maintenance platform; the top of the rotating bracket is provided with a rotating bracket arm for arranging a mechanism to be maintained; the two ends of the rotating bracket arm can be provided with clamping and fixing devices for clamping the mechanism to be maintained to rotate 360 degrees relative to the rotating bracket, so that the maintenance and detection are convenient; the top of the rotating bracket is also provided with a rotating bracket fixing disc for fixing and locking the rotating bracket arm after the angle of the rotating bracket arm is adjusted to a maintenance mechanism, so that the stability of the mechanism in the maintenance process is ensured.
In specific implementation, platform supporting arms are respectively arranged below two sides of the maintenance platform; the platform supporting arm can move out towards the two sides of the maintenance platform and freely select a moving-out angle.
In specific implementation, be equipped with the adjustment screw thread in the platform support arm in order to freely adjust the support height to adjust the fixed support effect that plays according to the maintenance condition to the height of maintenance platform.
In specific implementation, the lifting mechanism further comprises a gantry type lifting arm and a lifting motor; the lifting force arm is fixedly connected with the lifting motor so as to bring the maintenance platform to lift or fall along with the lifting motor; the gantry type lifting arm provides lifting support and a lifting track for the lifting motor.
In specific implementation, the lifting mechanism further comprises a lifting control box; the lifting control box is connected with the lifting motor and used for controlling the start and stop of the power supply and the rising and falling of the lifting motor.
In specific implementation, the moving mechanism comprises moving force arms movably mounted on two sides of the bottom of the gantry type lifting arm, and each moving force arm penetrates through one side of the bottom of the gantry type lifting arm and can be pulled backwards to pack the front end. The front end of the power moving arm is provided with two power moving arm wheels, and the two power moving arm wheels are arranged in a front-back sequence to ensure that the power moving arm can move and turn freely.
In specific implementation, the moving mechanism further comprises base moving wheels arranged on two sides of the bottom of the gantry type lifting arm, so that the base moving wheels and the moving force arm support the whole maintenance equipment together, and the whole maintenance equipment can be freely moved and steered. The movable force arm supports the gantry type lifting arm and ensures the stability and safety of the maintenance equipment of the whole circuit breaker operating mechanism together with the base movable wheel. The moving arm wheel, the moving arm, the bottom of the gantry type lifting arm and the base moving wheel form a whole stress supporting structure, and meanwhile, the extending distance of the moving arm is adjustable, so that the gantry type lifting arm can adapt to various wide and narrow distance scenes.
In specific implementation, the electric drive device is installed at the bottom of planer-type lifing arm, includes:
the power assembly is provided with a power supply for the maintenance equipment of the whole circuit breaker operating mechanism and a driving motor connected with the power supply;
the driving wheel is arranged at the middle bottom of the power assembly, connected with the driving motor and used for driving the whole circuit breaker operating mechanism maintenance equipment to move forward and backward;
and the moving operating lever is used for assisting the movement of the driving wheel and controlling the moving direction of the whole maintenance equipment together with the driving wheel, and meanwhile, an operating button is arranged on the moving operating lever and used for controlling the running state of the driving motor and further controlling the driving wheel to drive the maintenance equipment to move forwards or backwards.
In specific implementation, the free end of the balance crane is provided with a lifting hook, the lifting hook is connected with a lifting motor arranged on the upright post through a rope, and the lifting hook is used for hooking equipment, tools or heavy objects in an electric mode.
In the concrete implementation, the balanced hanging adopts the hydraulic drive davit to open and shut, and the balanced hanging includes stand, forearm, postbrachium one end is installed the top of stand, the other end of postbrachium with the one end of forearm can be revoluted and is connected, the lifting hook is installed on the free end of forearm. The front arm can rotate around the rear arm under the driving of the hydraulic cylinder, and then the effect of extending or retracting is achieved. Simple structure, practicality, strong reliability and strong power for hoisting. The hydraulic cylinder and the hoisting motor are provided with various sensing devices and used for realizing intelligent touch type hoisting of objects, 1 mm-level accurate lifting can be realized, and the problem of difficulty in hole alignment and difficulty in alignment in the air of equipment installation is solved.
Instructions for use:
the maintenance equipment is a maintenance workbench for disassembling the circuit breaker operating mechanism A, has the functions of overturning, rotating, fixing, horizontal adjusting and the like, and solves the problems of difficulty in disassembling the energy storage spring, long time consumption and the like; the working efficiency and quality of the A repair are effectively improved, the power failure time is shortened, and effective guarantee is provided for stable operation of a power grid.
The lifting mechanism is powered by a power supply in the power assembly, and the lifting motor and the lifting force arm drive the maintenance platform to move up and down along the inner side track of the gantry type lifting arm; the lifting of the maintenance platform can conveniently detach the mechanism to be maintained at a high position, and the main function is to carry the mechanism to be maintained to climb the rescue vehicle by the whole maintenance equipment through the backward retraction function of the maintenance platform and the power moving arm, so that the rescue vehicle can be conveniently maintained after being brought back.
The maintenance platform is a maintenance platform, and a balance crane, a rotating bracket and a balance maintenance platform are loaded on the platform; the mechanism to be maintained, tools or heavy objects can be hung and taken, the mechanism to be maintained can be clamped to rotate 360 degrees along the rotating support, the horizontal state of the mechanism to be maintained can be adjusted, and maintenance work is facilitated.
Drive whole maintenance equipment and arrive appointed work place, the maintenance platform risees and lets the staff dismantle the mechanism of waiting to maintain of eminence down, then whole maintenance equipment bears and waits to maintain the mechanism and the staff goes to the rescue vehicle car storehouse in, place maintenance platform and the lift arm of force on the rescue vehicle car storehouse, the effect because of the platform support arm leads to leaving the clearance between maintenance platform and car storehouse bottom surface this moment, its space can hold and remove power arm wheel, move power arm and base and remove wheel etc.. The movable power arm is retracted backwards, then under the working of the lifting motor, the modules such as the movable power arm, the gantry type lifting arm and the power assembly move upwards slowly, when the movable power arm moves upwards to the cabin surface of the rescue vehicle, the movable power arm is pushed back to the front normal position, and the whole maintenance equipment is completed to climb up to the cabin of the rescue vehicle. Consequently, platform support arm, movable mounting are in the cooperation of characteristics such as the power arm that moves of planer-type lifing arm bottom both sides, elevator motor is used, has realized that whole maintenance equipment carries and waits to maintain the mechanism and climb on the rescue carriage, makes things convenient for the rescue carriage to take the technical effect of in situ maintenance in the return.
Platform supporting arms are additionally arranged below two sides of the maintenance platform and can be moved out towards the two sides, the moving-out angle is freely selected, the thread is freely adjusted to control the supporting height, and a proper fixing point is selected for the maintenance platform to play a role in fixing and supporting according to working conditions; the balance crane is controlled by electric power, and manual control of equipment and heavy objects is not needed.
The invention has the functions of one machine with multiple functions, has the functions of lifting, automatic loading, overturning, rotating, fixing, horizontal adjusting and the like, solves the problems of difficult disassembly, long time consumption and the like of a spring operating mechanism, effectively improves the working efficiency and quality of A repair, shortens the power failure time, and provides effective guarantee for the stable operation of a power grid.
The technical effects are as follows: 1) Possess narrow space intelligence and lift by crane the function. The intelligent touch type lifting device has the functions of a common small crane, can pass through irregular terrain by means of an electric driving wheel, can lift objects intelligently and accurately at the level of 1mm, and solves the problems of difficult hole alignment and difficult alignment in the air of equipment installation; 2) The electric hydraulic forklift has the functions of the traditional electric hydraulic forklift and can lift an object by 1.5 m; 3) The maintenance equipment can be automatically loaded under the condition of load, and can be loaded and transported without adopting additional equipment for hoisting; 4) The platform has the functions of overturning, rotating, fixing and horizontally adjusting the mechanism to be repaired, realizes the installation and disassembly operation of the linear spring type operating mechanism equipment of the circuit breaker in a complex and narrow space, and can be expanded to other various circuit breakers for use.
At present, the product has no functional products of the same type on the market, the invented product is an overhaul workbench which is formed by integrating two special devices, namely a small crane and a small hydraulic forklift, and the workbench is a special overhaul workbench with the model of disassembly A of an operation mechanism of a circuit breaker FK 3-1.
The invention provides a circuit breaker operating mechanism maintenance device, comprising: the mobile lifting vehicle comprises a lifting mechanism and a moving mechanism, wherein the lifting mechanism is provided with a lifting force arm, and an electric driving device is arranged in the moving mechanism; the maintenance platform is detachably arranged on the lifting force arm and is used for providing a working maintenance platform; the balance crane is arranged at one end, close to the lifting mechanism, of the maintenance platform so as to ensure that the center of gravity is centered during hoisting; the balance crane is used for hoisting a mechanism, a tool or a heavy object to be maintained, so that the maintenance work is convenient to carry out; a balance maintenance platform which is arranged at one side of the maintenance platform and is used for adjusting the horizontal state of the mechanism needing maintenance; the rotating bracket is arranged on the other side of the maintenance platform; the top of the rotating bracket is provided with a rotating bracket arm for arranging a mechanism to be maintained; the two ends of the rotating bracket arm can be provided with clamping and fixing devices for clamping a mechanism to be maintained to rotate 360 degrees relative to the rotating bracket, so that the maintenance and detection are convenient; the top of the rotating bracket is also provided with a rotating bracket fixing disc for fixing and locking the rotating bracket arm after the angle of the rotating bracket arm is adjusted to a maintenance mechanism, so that the stability of the mechanism in the maintenance process is ensured. The multifunctional lifting device has multiple functions, has the functions of lifting, automatic loading, overturning, rotating, fixing, horizontal adjusting and the like, solves the problems of difficulty in dismounting, long time consumption and the like of the circuit breaker operating mechanism, effectively improves the working efficiency and quality of A repair, shortens the power failure time, and provides effective guarantee for the stable operation of a power grid.
In the description of the present invention, it is to be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (10)
1. A circuit breaker operating mechanism service apparatus, comprising:
the mobile lifting vehicle comprises a lifting mechanism and a moving mechanism, wherein the lifting mechanism is provided with a lifting force arm, and an electric driving device is arranged in the moving mechanism;
the maintenance platform is detachably arranged on the lifting force arm and is used for providing a working maintenance platform;
the balance crane is arranged on one end, close to the lifting mechanism, of the maintenance platform so as to ensure that the center of gravity is centered during hoisting; the balance crane is used for hoisting a mechanism to be maintained, a tool or a heavy object, so that maintenance work is facilitated;
a balance maintenance platform which is arranged at one side of the maintenance platform and is used for adjusting the horizontal state of the mechanism needing maintenance;
a rotating bracket installed at the other side of the maintenance platform; the top of the rotating bracket is provided with a rotating bracket arm for arranging a mechanism to be maintained; the two ends of the rotating bracket arm can be provided with clamping and fixing devices for clamping the mechanism to be maintained to rotate 360 degrees relative to the rotating bracket, so that the maintenance and detection are convenient; the top of the rotating bracket is also provided with a rotating bracket fixing disc so that the rotating bracket arm can be fixed and locked after the angle of the rotating bracket arm is adjusted, and the stability of the mechanism in the maintenance process can be guaranteed.
2. The circuit breaker operating mechanism service apparatus of claim 1 wherein platform support arms are mounted below both sides of the service platform, respectively; the platform supporting arm can move out towards the two sides of the maintenance platform and freely select a moving-out angle.
3. The circuit breaker operating mechanism service apparatus of claim 2 wherein the platform support arm has adjustment threads therein to allow free adjustment of the support height, so as to provide a fixed support for adjustment of the height of the service platform in response to service conditions.
4. The circuit breaker operating mechanism maintenance device of claim 1, wherein the lifting mechanism further comprises a gantry-type lifting arm and a lifting motor; the lifting force arm is fixedly connected with the lifting motor so as to bring the maintenance platform to lift or fall along with the lifting motor; the gantry type lifting arm provides lifting support and a lifting track for the lifting motor.
5. The circuit breaker operating mechanism service apparatus of claim 4 wherein the lift mechanism further comprises a lift control box; the lifting control box is connected with the lifting motor and used for controlling the start and stop of the power supply and the rising and falling of the lifting motor.
6. The circuit breaker operating mechanism service apparatus of claim 4 wherein the moving mechanism includes moving force arms movably mounted to both sides of a bottom of the gantry-type lifting arm; the front end of the power moving arm is provided with a power moving arm wheel.
7. The circuit breaker operating mechanism service apparatus of claim 6 wherein there are two moving arm wheels on each moving arm in tandem to ensure that the moving arm can move and turn freely.
8. The circuit breaker operating mechanism maintenance device of claim 6, wherein the moving mechanism further comprises base moving wheels installed on both sides of the bottom of the gantry-type lifting arm to support the whole maintenance device together with the moving force arm, so as to ensure that the whole maintenance device can move and turn freely.
9. The circuit breaker operating mechanism servicing apparatus of any one of claims 1 to 8, wherein a free end of the balance crane is provided with a hook for hooking equipment, tools or weights.
10. The circuit breaker operating mechanism service apparatus of any one of claims 1 to 8 wherein the balance crane employs a hydraulically driven boom that opens and closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211227412.XA CN115498544A (en) | 2022-10-09 | 2022-10-09 | Circuit breaker operating device overhauls equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211227412.XA CN115498544A (en) | 2022-10-09 | 2022-10-09 | Circuit breaker operating device overhauls equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115498544A true CN115498544A (en) | 2022-12-20 |
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ID=84472488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211227412.XA Pending CN115498544A (en) | 2022-10-09 | 2022-10-09 | Circuit breaker operating device overhauls equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115498544A (en) |
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2022
- 2022-10-09 CN CN202211227412.XA patent/CN115498544A/en active Pending
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