CN112526444A - Electric energy meter debugging device - Google Patents
Electric energy meter debugging device Download PDFInfo
- Publication number
- CN112526444A CN112526444A CN202011563913.6A CN202011563913A CN112526444A CN 112526444 A CN112526444 A CN 112526444A CN 202011563913 A CN202011563913 A CN 202011563913A CN 112526444 A CN112526444 A CN 112526444A
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- electric energy
- energy meter
- debugging device
- sucking disc
- piston
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to the technical field of electric power operation and maintenance equipment, and particularly discloses an electric energy meter debugging device which comprises an electric energy meter body, wherein a display screen, a test button and a test knob are arranged on one side surface of the electric energy meter body, a sucker component is arranged on the other side surface of the electric energy meter body, the sucker component comprises a sucker body, a cavity opening of the sucker body faces to a wall surface, the sucker body can be fixed on the wall surface when the cavity opening of the sucker body is abutted against the wall surface and air pressure in the sucker body is reduced, a telescopic component is arranged between the sucker body and the electric energy meter body, and the telescopic component is used for adjusting the distance between the electric energy meter. The electric energy meter debugging device is low in operation difficulty and high in debugging efficiency.
Description
Technical Field
The invention relates to the technical field of electric power operation and maintenance equipment, in particular to an electric energy meter debugging device.
Background
After the electric energy meter is produced, performance detection is needed to judge whether the electric energy meter can be normally used. In the prior art, most of detection for electric energy meters is non-automatic, and a common detection method is to manually connect one wiring terminal of the electric energy meter to a detection instrument, turn on a power supply after the connection, and introduce different voltages and currents into the electric energy meter to be detected, so that the detection instrument is used for detecting and debugging the electric energy meter.
When the electric energy meter in the electric box with limited space is debugged, and the handheld mobile terminal controls the electric energy meter debugging device, one hand is needed to fix the electric energy meter debugging device, and the other hand is needed to debug, so that the debugging operation difficulty is high, and the debugging efficiency is low.
Disclosure of Invention
The embodiment of the invention aims to provide an electric energy meter debugging device which is low in operation difficulty and high in debugging efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an electric energy meter debugging device, including the electric energy meter body, a side of electric energy meter body is provided with display screen and test button and test knob, and the another side is provided with the sucking disc subassembly, the sucking disc subassembly includes the sucking disc body, the accent of sucking disc body is towards the wall, the accent butt of sucking disc body is in the wall reduces during this internal atmospheric pressure of sucking disc, the sucking disc body can be fixed on the wall, the sucking disc body with be provided with flexible subassembly between the electric energy meter body, flexible subassembly is used for adjusting the electric energy meter body with distance between the sucking disc body.
As an optimal scheme of the electric energy meter debugging device, a through hole is formed in the bottom of the cavity of the sucker body, the sucker assembly further comprises an adjusting structure, the adjusting structure comprises a piston cylinder and a piston body, a cylinder opening of the piston cylinder is connected with the through hole in a sealing mode, and the piston body can move in the piston cylinder to change air pressure in the sucker body.
As an optimal scheme of the electric energy meter debugging device, the adjusting structure further comprises a shell, an internal thread sleeve and a threaded rod, the wall of the cylinder cavity of the internal thread sleeve is in threaded connection with the threaded rod, the internal thread sleeve is in rotational connection with the shell, the piston cylinder is in fixed connection with the shell, one end of the threaded rod is arranged in the cylinder cavity of the internal thread sleeve, the other end of the threaded rod is in fixed connection with the piston body, the internal thread sleeve is opposite to the shell, the threaded rod can be driven to move relative to the piston cylinder when the shell rotates, and therefore the piston body can move in the piston cylinder.
As a preferred scheme of the electric energy meter debugging device, the adjusting structure further comprises a first adjusting rod, the first adjusting rod is movably arranged in an adjusting hole of the shell, a first bevel gear is arranged at one end, close to the internal thread sleeve, of the first adjusting rod, a second bevel gear is arranged on the outer side wall of the internal thread sleeve, the first bevel gear is meshed with the second bevel gear, and when the first adjusting rod rotates relative to the shell, the internal thread sleeve can be driven to rotate relative to the shell.
As a preferred scheme of the electric energy meter debugging device, a sealing adhesive layer and a structural adhesive layer are arranged between the piston cylinder and the shell.
As a preferred scheme of the electric energy meter debugging device, a guide rod is fixedly arranged on the piston body, a guide plate is arranged in a cylinder cavity of the piston cylinder, the guide plate is provided with a guide hole in a penetrating manner, the guide rod is arranged in the guide hole, and the guide rod can move relative to the guide hole so as to limit the moving direction of the piston body.
As an optimal scheme of the electric energy meter debugging device, a side face of the electric energy meter body is provided with a winding mechanism, the winding mechanism comprises a rotating shaft and at least two winding boards, the rotating shaft is fixedly connected with the winding boards, the rotating shaft is rotatably connected with the electric energy meter body, a lead of a detection pen of the electric energy meter body is fixedly arranged on the winding boards, and when the winding boards are opposite to the electric energy meter body, the lead can be wound and arranged on the rotating shaft between the winding boards.
As an optimal scheme of the electric energy meter debugging device, a second adjusting rod is movably arranged in the electric energy meter body and is close to the end part of the rotating shaft, a worm is fixedly arranged on the end part of the second adjusting rod, a worm wheel is arranged on the outer side wall of the rotating shaft, and the worm is meshed with the worm wheel.
As a preferred scheme of the electric energy meter debugging device, a fixed clamping groove is formed in the side face, provided with the winding mechanism, of the electric energy meter body, and the fixed clamping groove can accommodate the detection pen.
As a preferred scheme of the electric energy meter debugging device, the telescopic assembly comprises at least two hinged rods, hinged structures are arranged at two end portions of the hinged rods in the length direction, and the two adjacent hinged rods can rotate mutually.
The embodiment of the invention has the beneficial effects that:
through being provided with display screen and test button and test knob in the side of electric energy meter body, through pressing test button and rotatory test knob, can debug the operation to the electric energy meter body to show test structure on the display screen. The suction disc component is arranged on the other side face of the electric energy meter body and comprises a suction disc body, the cavity opening of the suction disc body faces the wall face, when the cavity opening of the suction disc body is abutted to the wall face and air pressure in the suction disc body is reduced, the air pressure in the suction disc body is lower than the air pressure outside, the suction disc body can be fixed on the wall face, and the electric energy meter body can be fixed on the wall face. In addition, be provided with flexible subassembly between sucking disc body and the electric energy meter body, flexible subassembly is used for adjusting the distance between electric energy meter body and the sucking disc body, when utilizing the sucking disc subassembly to fix the electric energy meter body on the wall, also can adjust the distance of electric energy meter body and wall through flexible subassembly for the operator can use both hands to debug the operation to electric energy meter body and other electrical equipment after confirming the position of electric energy meter body and wall. Therefore, the electric energy meter debugging device provided by the embodiment of the invention is low in operation difficulty and high in debugging efficiency.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
Fig. 1 is a schematic structural diagram of an electric energy meter debugging device according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of a chuck assembly according to an embodiment of the present invention.
Fig. 3 is a schematic rear view of an electric energy meter debugging device according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of a bottom view of a debugging device of an electric energy meter according to an embodiment of the invention.
Fig. 5 is a partial enlarged view of the invention at a in fig. 4.
In the figure:
1. an electric energy meter body; 11. a display screen; 12. a test button; 13. testing the knob; 14. a detection pen; 15. a wire; 2. a sucker component; 21. a suction cup body; 211. a through hole; 22. an adjustment structure; 221. a piston cylinder; 222. a piston body; 223. a housing; 2231. an adjustment hole; 224. an internally threaded sleeve; 2241. a second bevel gear; 225. a threaded rod; 226. a first adjusting lever; 2261. a first bevel gear; 227. a guide bar; 228. a guide plate; 3. a telescoping assembly; 31. a hinged lever; 32. a hinge structure; 4. a winding mechanism; 41. a rotating shaft; 42. a wire winding plate; 43. a second adjusting lever; 44. a worm; 45. a worm gear; 46. and fixing the clamping groove.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, an embodiment of the present invention provides an electric energy meter debugging device, including an electric energy meter body 1, a side surface of the electric energy meter body 1 is provided with a display screen 11, a test button 12 and a test knob 13, the other side surface is provided with a suction cup assembly 2, the suction cup assembly 2 includes a suction cup body 21, a cavity opening of the suction cup body 21 faces a wall surface, when the cavity opening of the suction cup body 21 abuts against the wall surface and reduces air pressure in the suction cup body 21, the suction cup body 21 can be fixed on the wall surface, a telescopic assembly 3 is provided between the suction cup body 21 and the electric energy meter body 1, and the telescopic assembly 3 is used for adjusting a distance between the electric energy meter body 1 and the suction.
According to the embodiment of the invention, the display screen 11, the test button 12 and the test knob 13 are arranged on one side surface of the electric energy meter body 1, and the test button 12 is pressed and the test knob 13 is rotated to debug the electric energy meter body 1, so that the test structure is displayed on the display screen 11. Be provided with sucking disc subassembly 2 in the another side of electric energy meter body 1, sucking disc subassembly 2 includes sucking disc body 21, and the accent of sucking disc body 21 is towards the wall, and when the accent butt of sucking disc body 21 was at the wall and reduced the atmospheric pressure in the sucking disc body 21, because the inside atmospheric pressure of sucking disc body 21 is less than outside atmospheric pressure for sucking disc body 21 can be fixed on the wall, thereby can also fix electric energy meter body 1 on the wall. In addition, be provided with flexible subassembly 3 between sucking disc body 21 and the electric energy meter body 1, flexible subassembly 3 is used for adjusting the distance between electric energy meter body 1 and the sucking disc body 21, when utilizing sucking disc subassembly 2 to fix electric energy meter body 1 on the wall, also can adjust the distance of electric energy meter body 1 and wall through flexible subassembly 3, make the operator after confirming the position of electric energy meter body 1 and wall, can use both hands to debug the electric energy meter body 1 and other electrical equipment and operate. Therefore, the electric energy meter debugging device provided by the embodiment of the invention is low in operation difficulty and high in debugging efficiency.
In one embodiment, referring to fig. 2, the through hole 211 is disposed at the bottom of the cavity of the suction cup body 21, the suction cup assembly 2 further includes an adjusting structure 22, the adjusting structure 22 includes a piston cylinder 221 and a piston body 222, the piston body 222 can move in the piston cylinder 221, and since the cylinder opening of the piston cylinder 221 is hermetically connected with the through hole 211, when the piston body 222 approaches or leaves the suction cup body 21, the volume of the gas in the suction cup body 21 can be increased or decreased, so as to change the gas pressure in the suction cup body 21, and the suction cup body 21 can be released or fixed on the wall surface.
Further, with continued reference to fig. 2, the adjustment structure 22 further includes a housing 223, an internal threaded sleeve 224 and a threaded rod 225, a cavity wall of the internal threaded sleeve 224 is in threaded connection with the threaded rod 225, such that the threaded rod 225 can rotate in the internal threaded sleeve 224 and move toward or away from the internal threaded sleeve 224, the internal threaded sleeve 224 is in rotational connection with the housing 223, the piston cylinder 221 is fixedly connected with the housing 223, one end of the threaded rod 225 is disposed in the cavity of the internal threaded sleeve 224, and the other end of the threaded rod 225 is fixedly connected with the piston body 222, and when the internal threaded sleeve 224 rotates relative to the housing 223, the threaded rod 225 can be driven to move relative to the piston cylinder 221, such that the piston body 222 fixedly connected with the threaded rod. The electric energy meter debugging device of the embodiment can precisely adjust the moving distance between the piston body 222 and the piston cylinder 221 by rotating the internal thread sleeve 224, and more precisely adjust the suction force between the suction cup body 21 and the wall surface.
Still further, with reference to fig. 2, the adjusting structure 22 further includes a first adjusting rod 226, the first adjusting rod 226 is movably disposed in the adjusting hole 2231 of the housing 223, one end of the first adjusting rod 226 near the internally threaded sleeve 224 is provided with a first bevel gear 2261, an outer side wall of the internally threaded sleeve 224 is provided with a second bevel gear 2241, the first bevel gear 2261 and the second bevel gear 2241 are in meshed connection, when the first adjusting rod 226 rotates relative to the housing 223, the first bevel gear 2261 can be driven to drive the second bevel gear 2241, so that the internally threaded sleeve 224 can be driven to rotate relative to the housing 223, and the threaded rod 225 can be driven to move relative to the piston cylinder 221. In the present embodiment, the first adjustment rod 226 is disposed in the adjustment hole 2231 of the housing 223, so that the first adjustment rod 226 can be driven to rotate the internally threaded sleeve 224, thereby improving the convenience of use.
Optionally, a sealant layer and a structural sealant layer are disposed between the piston cylinder 221 and the housing 223, and when the piston cylinder 221 and the housing 223 are fixed by the structural sealant, the sealant can be added to ensure the sealing performance between the housing 223 and the piston cylinder 221.
In another preferred embodiment, with continued reference to fig. 2, a guide rod 227 is fixedly disposed on the piston body 222, a guide plate 228 is disposed in the cylinder cavity of the piston cylinder, the guide plate 228 is penetratingly disposed with a guide hole, the guide rod 227 is disposed in the guide hole, and the guide rod 227 can move relative to the guide hole, so that when the movable body moves in the piston cylinder 221, the guide effect of the guide hole on the guide rod 227 can be utilized to limit the moving direction of the piston body 222, and improve the stability of the piston body 222 in the piston cylinder 221.
Optionally, referring to fig. 3, a side surface of the electric energy meter body 1 is provided with a winding mechanism 4, the winding mechanism 4 includes a rotating shaft 41 and at least two winding boards 42, the rotating shaft 41 is fixedly connected to the winding boards 42, the rotating shaft 41 is rotatably connected to the electric energy meter body 1, the wire 15 of the detection pen 14 of the electric energy meter body 1 is fixedly arranged to the winding boards 42, when the winding boards 42 rotate relative to the electric energy meter body 1, the wire 15 can be wound around the rotating shaft 41 between the two winding boards 42, so as to realize the effect of arranging the wire 15, and avoid knotting of the wire 15 or occupation of the volume of the storage box.
Further, referring to fig. 4 and 5, a second adjusting lever 43 is movably disposed in the electric energy meter body 1, a worm 44 is fixedly disposed at an end of the second adjusting lever 43 close to the rotating shaft 41, a worm wheel 45 is disposed on an outer side wall of the rotating shaft 41, and the worm 44 and the worm wheel 45 are in meshed connection.
In another embodiment, referring to fig. 3, a fixed card slot 46 is provided on a side surface of the electric energy meter body 1 provided with the winding mechanism 4, the fixed card slot 46 can accommodate the detection pen 14, and in this embodiment, the detection pen 14 provided with the electric energy meter body 1 is fixed by using the fixed card slot 46, so that the lead 15 can be conveniently wound on the rotating shaft 41 while the detection pen 14 is protected.
In particular, referring to fig. 1, the telescopic assembly 3 includes at least two hinge rods 31, two ends of the hinge rods 31 in the length direction are provided with hinge structures 32, and two adjacent hinge rods 31 can rotate with each other through the hinge structures 32 to achieve the effect of changing the length and size of the telescopic assembly 3. Therefore, this embodiment directly orders about electric energy meter body 1 and is close to or keeps away from the wall, can directly change the distance of electric energy meter body 1 and wall.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides an electric energy meter debugging device, its characterized in that, includes the electric energy meter body, a side of electric energy meter body is provided with display screen and test button and test knob, and the another side is provided with the sucking disc subassembly, the sucking disc subassembly includes the sucking disc body, the accent of sucking disc body is towards the wall, the accent butt of sucking disc body is in the wall reduces during this internal atmospheric pressure of sucking disc, the sucking disc body can be fixed on the wall, the sucking disc body with be provided with flexible subassembly between the electric energy meter body, flexible subassembly is used for adjusting the electric energy meter body with distance between the sucking disc body.
2. The electric energy meter debugging device of claim 1, wherein a through hole is formed in the bottom of the cavity of the sucker body, the sucker assembly further comprises an adjusting structure, the adjusting structure comprises a piston cylinder and a piston body, a cylinder opening of the piston cylinder is hermetically connected with the through hole, and the piston body can move in the piston cylinder to change the air pressure in the sucker body.
3. The electric energy meter debugging device of claim 2, wherein the adjusting structure further comprises a housing, an internal threaded sleeve and a threaded rod, a cavity wall of the internal threaded sleeve is in threaded connection with the threaded rod, the internal threaded sleeve is rotatably connected with the housing, the piston cylinder is fixedly connected with the housing, one end of the threaded rod is arranged in the cavity of the internal threaded sleeve, the other end of the threaded rod is fixedly connected with the piston body, and when the internal threaded sleeve rotates relative to the housing, the threaded rod can be driven to move relative to the piston cylinder, so that the piston body moves in the piston cylinder.
4. The electric energy meter debugging device of claim 3, wherein the adjusting structure further comprises a first adjusting rod movably disposed in the adjusting hole of the housing, a first bevel gear is disposed at an end of the first adjusting rod close to the internally threaded sleeve, a second bevel gear is disposed on an outer side wall of the internally threaded sleeve, the first bevel gear and the second bevel gear are in meshed connection, and when the first adjusting rod rotates relative to the housing, the internally threaded sleeve can be driven to rotate relative to the housing.
5. The electric energy meter debugging device of claim 3, wherein a sealant layer and a structural sealant layer are disposed between the piston cylinder and the housing.
6. The electric energy meter debugging device of claim 2, wherein a guide rod is fixedly arranged on the piston body, a guide plate is arranged in the cylinder cavity of the piston cylinder, a guide hole is arranged in the guide plate in a penetrating manner, and the guide rod is arranged in the guide hole and can move relative to the guide hole to limit the moving direction of the piston body.
7. The debugging device of claim 1, wherein a winding mechanism is disposed on a side surface of the electric energy meter body, the winding mechanism includes a rotating shaft and at least two winding plates, the rotating shaft is fixedly connected to the winding plates, the rotating shaft is rotatably connected to the electric energy meter body, a lead of a detection pen of the electric energy meter body is fixedly disposed on the winding plates, and when the winding plates rotate relative to the electric energy meter body, the lead can be wound around the rotating shaft between the two winding plates.
8. The electric energy meter debugging device of claim 7, wherein a second adjusting rod is movably disposed in the electric energy meter body, a worm is fixedly disposed at an end of the second adjusting rod close to the rotating shaft, a worm wheel is disposed on an outer side wall of the rotating shaft, and the worm is meshed with the worm wheel.
9. The electric energy meter debugging device according to claim 7, wherein a fixing slot is arranged on a side surface of the electric energy meter body where the winding mechanism is arranged, and the fixing slot can accommodate the detection pen.
10. The electric energy meter debugging device of claim 1, wherein the telescopic assembly comprises at least two hinged rods, two ends of each hinged rod in the length direction are provided with hinged structures, and two adjacent hinged rods can rotate mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011563913.6A CN112526444A (en) | 2020-12-25 | 2020-12-25 | Electric energy meter debugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011563913.6A CN112526444A (en) | 2020-12-25 | 2020-12-25 | Electric energy meter debugging device |
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| Publication Number | Publication Date |
|---|---|
| CN112526444A true CN112526444A (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011563913.6A Pending CN112526444A (en) | 2020-12-25 | 2020-12-25 | Electric energy meter debugging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112526444A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117630804A (en) * | 2024-01-25 | 2024-03-01 | 国网冀北电力有限公司 | Ammeter seal cover verification mechanism |
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| CN210863833U (en) * | 2019-07-19 | 2020-06-26 | 刘红燕 | Fastening equipment for auxiliary installation of electric energy meter |
| CN211955642U (en) * | 2020-03-23 | 2020-11-17 | 保定腾翔电力设备制造有限公司 | Power safety appliance for voltage detection |
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| CN201180730Y (en) * | 2008-04-16 | 2009-01-14 | 赵仲能 | Bolt type suction disc |
| CN201250837Y (en) * | 2008-08-28 | 2009-06-03 | 赵越 | Vacuum suction cup type hook |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117630804A (en) * | 2024-01-25 | 2024-03-01 | 国网冀北电力有限公司 | Ammeter seal cover verification mechanism |
| CN117630804B (en) * | 2024-01-25 | 2024-05-10 | 国网冀北电力有限公司 | Ammeter seal cover verification mechanism |
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