CN113783038B - Electric energy meter interface clamping device - Google Patents
Electric energy meter interface clamping device Download PDFInfo
- Publication number
- CN113783038B CN113783038B CN202111063670.4A CN202111063670A CN113783038B CN 113783038 B CN113783038 B CN 113783038B CN 202111063670 A CN202111063670 A CN 202111063670A CN 113783038 B CN113783038 B CN 113783038B
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- Prior art keywords
- clamping
- rod
- interface
- plugboard
- shell
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Clamps And Clips (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The application discloses an electric energy meter interface clamping device which comprises a shell, a panel arranged on the shell, an interface nail arranged in the shell, and a transmission inserting sheet matched with the interface nail, wherein the panel is arranged on the shell; the clamping assembly comprises a plugboard arranged on the inner wall of the shell, an elastic piece fixedly connected with the bottom surface of the plugboard, a clamping piece movably connected with the bottom surface of the plugboard and a connecting rod fixedly connected on the inner wall of the top surface of the shell, wherein the clamping piece comprises a clamping rod movably connected with the bottom surface of the plugboard, a supporting plate arranged on the clamping rod and a clamping plate movably connected with the top end of the clamping rod, a sliding groove is formed in the bottom of the clamping rod, and the connecting rod is placed in the sliding groove.
Description
Technical Field
The application relates to the technical field of electric energy meter interfaces, in particular to an electric energy meter interface clamping device.
Background
At present, a 485 wiring terminal of the electric energy meter terminal is fastened through screws, because the interface is small, a 485 communication line is thin, wiring is inconvenient and unstable, and after a period of operation, the 485 communication line is easy to loosen and fall off, so that acquisition abnormality is caused, workload of groups is increased, and automatic meter reading rate is influenced.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The application is provided in view of the problem that the 485 wiring terminal of the existing electric energy meter terminal is easy to loosen and fall off.
Therefore, the application aims to provide an electric energy meter interface clamping device.
In order to solve the technical problems, the application provides the following technical scheme: the utility model provides an electric energy meter interface chucking device includes, the interface subassembly includes casing, sets up the panel on the casing, sets up the inside interface nail of casing, and the transmission inserted sheet of cooperation with interface nail; and the clamping assembly comprises a plugboard arranged on the inner wall of the shell, an elastic piece fixedly connected with the bottom surface of the plugboard, a clamping piece movably connected with the bottom surface of the plugboard and a connecting rod fixedly connected on the inner wall of the top surface of the shell.
As a preferable scheme of the interface clamping device of the electric energy meter, the application comprises the following steps: the clamping piece comprises a clamping rod movably connected with the bottom surface of the plugboard, a supporting plate arranged on the clamping rod and a clamping plate movably connected with the top end of the clamping rod, a sliding groove is formed in the bottom of the clamping rod, and the connecting rod is placed in the sliding groove (304).
As a preferable scheme of the interface clamping device of the electric energy meter, the application comprises the following steps: the clamping rod comprises an arc-shaped rod arranged at the bottom and a straight rod fixedly connected with the arc-shaped rod.
As a preferable scheme of the interface clamping device of the electric energy meter, the application comprises the following steps: the support plate comprises a support plate surface movably connected with the straight rod and a spring arranged at the bottom of the support plate surface, and the other end of the spring is fixedly connected to the straight rod.
As a preferable scheme of the interface clamping device of the electric energy meter, the application comprises the following steps: the clamping plate is provided with clamping teeth, and the transmission inserting sheet is provided with clamping grooves matched with the clamping teeth.
As a preferable scheme of the interface clamping device of the electric energy meter, the application comprises the following steps: the clamping plate is provided with a protective strip.
As a preferable scheme of the interface clamping device of the electric energy meter, the application comprises the following steps: the interface nail is provided with threads.
As a preferable scheme of the interface clamping device of the electric energy meter, the application comprises the following steps: the panel is provided with an interface hole matched with the interface nail and the transmission inserting sheet.
As a preferable scheme of the interface clamping device of the electric energy meter, the application comprises the following steps: and the top surface of the plugboard is provided with a limit groove matched with the transmission plugboard.
The application has the beneficial effects that: the automatic meter reading device has the advantages that the conditions that the existing screws are screwed down and the lead is easy to break are improved, the abnormal data acquisition condition of the electric energy meter terminal is reduced, the automatic meter reading rate is improved, the 485 terminal communication line of the electric energy meter terminal is convenient to operate, and the communication reliability is improved while the operation is simple.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of the interface clamping device of the electric energy meter.
Fig. 2 is a structural cross-sectional view of the interface clamping device of the electric energy meter.
Fig. 3 is a schematic structural diagram of a clamping assembly of the interface clamping device of the electric energy meter.
Fig. 4 is a structural cross-sectional view of the clamping assembly of the power meter interface clamping device of the application.
Fig. 5 is an exploded view of the clamping member of the power meter interface clamping device of the present application.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present application in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1-5, there is provided an overall structural schematic of an electrical energy meter interface clamping device, comprising an interface assembly 100, including a housing 101, a faceplate 102 disposed on the housing 101, an interface pin 103 disposed inside the housing 101, and a transmission insert 104 mated with the interface pin 103; and the clamping assembly 200 comprises a plugboard 201 arranged on the inner wall of the shell 101, an elastic piece 202 fixedly connected with the bottom surface of the plugboard 201, a clamping piece 300 movably connected with the bottom surface of the plugboard 201, and a connecting rod 203 fixedly connected on the inner wall of the top surface of the shell 101.
Specifically, the interface assembly 100 includes a square cavity housing 101, a panel 102 with the same length and width as the panel 102, an interface pin 103 and a transmission insertion piece 104, wherein the panel 102 is arranged on the housing 101, the interface pin 103 is arranged in the housing 101, the transmission insertion piece 104 is matched with the interface pin 103, the housing 101 is a square cavity arranged at the interface of the electric energy meter, the signal transmission of the electric energy meter can be carried out by a signal wire inserted into the square cavity, one side of the signal transmission piece is not provided, the panel 102 is arranged on the side of the housing 101, the matching of the interface pin 103 and the transmission insertion piece 104 refers to the insertion operation, and the panel 102 is arranged to facilitate the insertion operation between the transmission insertion piece 104 and the interface pin 103 so as to complete the data transmission; and a chucking assembly 200 comprising a socket 201 provided on an inner wall of the housing 101, an elastic member 202 provided fixedly connected to a bottom surface of the socket 201, and a chucking member 300 movably connected to the bottom surface of the socket 201, wherein the movable connection is a rotational connection, a ball is provided therebetween so that the ball can only rotate a small amount on a vertical horizontal plane with the ball as a fixed point when receiving a force, and a connection rod 203 fixedly connected to an inner wall of a top surface of the housing 101, the bottom of the socket 201 is connected with the elastic member 202, the elastic member 202 is a spring in this embodiment, a top end of the transmission insert 104 generates an acting force on the socket 201 when the transmission insert 104 is inserted into the housing 101, the acting force causes the spring to compress, the chucking member 300 moves in cooperation with the connection rod 203, wherein the cooperation means that the connection rod 203 can control a movement track of the chucking member 300, in this embodiment, the clamping member 300 is a long rod with a certain radian and slight elasticity, when the inserting plate 201 presses down the spring, the rod is pressed to right by the bottom of the shell 101 to move, and because the right side is pressed by the right part of the shell 101, the transmission inserting plate 104 is pressed against the transmission inserting plate 104 to move, the friction force and the pressure of each surface of the long rod and the shell 101 are greater than the elastic force of the elastic member 202, so that the spring cannot rebound, the transmission inserting plate 104 always keeps good contact with the interface nail 103.
The operation process comprises the following steps: the transmission line head is welded with the transmission inserting piece 104, then the transmission inserting piece 104 is inserted into the shell 101 to press down against the inserting plate 201, the elastic piece 202 compresses the clamping piece 300 to displace to clamp the transmission inserting piece 104, when the transmission needs to be released, an extraction force is provided for the transmission inserting piece 104, and the elastic piece 202 pushes the inserting plate 201 to eject the transmission inserting piece 104.
Example 2
Referring to fig. 1-5, this embodiment differs from the first embodiment in that: the clamping piece 300 comprises a clamping rod 301 movably connected with the bottom surface of the plugboard 201, a supporting plate 302 arranged on the clamping rod 301, and a clamping plate 303 movably connected with the top end of the clamping rod 301, wherein a sliding groove 304 is formed in the bottom of the clamping rod 301, and the connecting rod 203 is placed in the sliding groove 304; the chucking lever 301 includes an arc-shaped lever 301a provided at the bottom and a straight lever 301b fixedly connected to the arc-shaped lever 301a, and the other structures are the same as those of embodiment 1.
Specifically, the clamping member 300 includes a clamping rod 301 movably connected to the bottom surface of the plugboard 201, a supporting plate 302 disposed on the clamping rod 301, and a clamping plate 303 movably connected to the top end of the clamping rod 301, where the clamping rod 301 is movably connected to the bottom surface of the plugboard 201, and a rolling ball is disposed between the clamping rod 301 and the clamping rod 301, so that the clamping rod 301 can only rotate slightly on a vertical horizontal plane with a ball as a fixed point when the clamping rod is stressed, a sliding groove 304 is formed in the bottom of the clamping rod 301, the connecting rod 203 is disposed in the sliding groove 304, when the clamping rod 301 moves, the supporting plate 302 can only move along the connecting rod 203 within the opening range of the sliding groove 304, the supporting plate 302 is disposed towards the inner wall of the housing 101 at the upper half section of the clamping rod 301, in this embodiment, when the supporting plate 302 is an elastic plate is in a non-use state of the interface, the supporting plate 202 forms an acute angle with the clamping rod 301 under the pressure of the elastic member 202, after the elastic member 202 is stressed to compress the clamping rod 301, the supporting plate 302 loses the acting force of the inner wall of the housing 101, forms a larger clamping angle with the clamping rod 301, and the bottom end supports the clamping rod 301 against the inner wall of the housing 101 to provide a supporting force for the clamping rod 101, and the lateral transmission of the clamping force.
Further, the clamping rod 301 comprises an arc rod 301a arranged at the bottom and a straight rod 301b fixedly connected with the arc rod 301a, the sliding groove 304 is formed in a range only on the arc rod 301a, the arc bottom enables the angle of the straight rod 301b to change when the clamping rod 301 moves under force, meanwhile, the space required by the movement of the arc rod 301a is not changed, the space is saved, and the clamping of the transmission inserting piece 104 is better controlled by different movement tracks of different shapes in a limited space.
The operation process comprises the following steps: the transmission line head and the transmission inserting sheet 104 are welded, then the transmission inserting sheet 104 is inserted into the shell 101 to press down against the inserting plate 201, the elastic piece 202 is compressed, the sliding groove 304 on the arc-shaped rod 301a moves along the connecting rod 203, the straight rod 301b is angularly offset to be close to the transmission inserting sheet 104, the clamping plate 303 abuts against the transmission inserting sheet 104 to firmly attach to the interface nail 103, meanwhile, the supporting plate 302 is unfolded to abut against the inner wall of the shell 101, when the transmission inserting sheet 104 needs to be pulled out, the insulating sheet is inserted into the interface edge to provide a force for the supporting plate 302 to leave the inner wall of the shell 101, and then the elastic piece 202 pushes the inserting plate 201 to eject the transmission inserting sheet 104.
Example 3
Referring to fig. 1 to 5, this embodiment differs from the above embodiment in that: the support plate 302 comprises a support plate surface 302a movably connected with the straight rod 301b and a spring 302b arranged at the bottom of the support plate surface 302a, and the other end of the spring 302b is fixedly connected to the straight rod 301 b; the clamping plate 303 is provided with clamping teeth 305, and the transmission inserting sheet 104 is provided with clamping grooves 105 matched with the clamping teeth 305; the clamping plate 303 is provided with a protective strip 306; the interface nail 103 is provided with threads; the panel 102 is provided with an interface hole 106 matched with the interface nail 103 and the transmission inserting sheet 104; the top surface of the insert plate 201 is provided with a limit groove 204 matched with the transmission insert plate 104, and the rest of the structure is the same as that of the embodiment 2.
Specifically, the support plate 302 includes a support plate surface 302a movably connected to the straight rod 301b, and a spring 302b disposed at the bottom of the support plate surface 302a, where the other end of the spring 302b is fixedly connected to the straight rod 301b, and the expansion of the support plate 302 is controlled by the spring 302b to operate better, and the spring 302b is in a compressed state when the interface is not in use.
Further, the clamping plate 303 is provided with clamping teeth 305, the transmission inserting sheet 104 is provided with clamping grooves 105 matched with the clamping teeth 305, and the tooth openings of the clamping teeth 305 are provided with angles towards the inserting plate 201.
Further, a protective strip 306 is arranged on the clamping plate 303; the interface pin 103 is provided with threads to further increase the friction between the clamping plate 303 and the interface pin 103 and the transmission insert 104 to make the clamping effect better.
Further, the panel 102 is provided with an interface hole 106 matched with the interface nail 103 and the transmission inserting piece 104, and the size of the interface hole 106 can realize the plugging operation and simultaneously can protect the inner clamping piece 300 from being exposed to the outside and being damaged; the top surface of the plugboard 201 is provided with a limit groove 204 matched with the transmission plug 104, and the limit groove 204 is arranged in the middle and can be clamped in the limit groove 204 when the transmission plug 104 is inserted in, so that the elastic piece 202 can be better applied with force without deflection.
The specific implementation principle is as follows: after the elastic piece 202 is forced to compress the clamping rod 301 to move, the spring 302b losing the acting force of the inner wall of the shell 101 is elastically deformed, so that an included angle formed by the supporting plate surface 302a and the clamping rod 301 is increased, and meanwhile, the bottom end of the supporting plate surface 302a props against the inner wall of the shell 101 to provide a transverse supporting force for the clamping rod 301, so that the clamping transmission inserting piece 104 is more stable when being clamped; the tooth mouth of the clamping tooth 305 has an angle towards the plugboard 201, so that the transmission inserting piece 104 well enters and is clamped with the clamping tooth 305 along the direction of the clamping tooth 305 when being inserted, but the transmission inserting piece 104 cannot be pulled out outwards due to the angle, the clamping tooth 305 is manually inserted into the interface edge by using the insulating piece to provide a force for leaving the inner wall of the shell 101 for the supporting plate 302 to leave, and then the plugboard 201 is pushed by the elastic piece 202 to pop up the transmission inserting piece 104, so that the situation that wires are easy to loosen and fall off and acquisition is abnormal is solved; the size of the interface aperture 106 provides a protective function to the internal fastener 300 while allowing for a plugging operation, avoiding damage to the internal fastener by exposure to the outside; the retention slot 204 may be snapped into the retention slot 204 when the transport tab 104 is inserted so that it can better apply a force to the spring 202 without shifting.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the application, or those not associated with practicing the application).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (5)
1. An electric energy meter interface chucking device, its characterized in that: comprising the steps of (a) a step of,
an interface assembly (100) comprising a housing (101), a faceplate (102) disposed on the housing (101), an interface pin (103) disposed inside the housing (101), and a transport tab (104) mated with the interface pin (103); the method comprises the steps of,
the clamping assembly (200) comprises a plugboard (201) arranged on the inner wall of the shell (101), an elastic piece (202) fixedly connected with the bottom surface of the plugboard (201), a clamping piece (300) movably connected with the bottom surface of the plugboard (201), and a connecting rod (203) fixedly connected on the inner wall of the top surface of the shell (101);
the clamping piece (300) comprises a clamping rod (301) movably connected with the bottom surface of the plugboard (201), a supporting plate (302) arranged on the clamping rod (301) and a clamping plate (303) movably connected with the top end of the clamping rod (301), a sliding groove (304) is formed in the bottom of the clamping rod (301), and the connecting rod (203) is placed in the sliding groove (304);
the clamping rod (301) comprises an arc-shaped rod (301 a) arranged at the bottom and a straight rod (301 b) fixedly connected with the arc-shaped rod (301 a);
a rolling ball is arranged between the clamping rod (301) and the plugboard (201);
the supporting plate (302) comprises a supporting plate surface (302 a) movably connected with the straight rod (301 b) and a spring (302 b) arranged at the bottom of the supporting plate surface (302 a), and the other end of the spring (302 b) is fixedly connected to the straight rod (301 b);
the clamping plate (303) is provided with clamping teeth (305), and the transmission inserting sheet (104) is provided with clamping grooves (105) matched with the clamping teeth (305).
2. The power meter interface chucking device as recited in claim 1, wherein: the clamping plate (303) is provided with a protective strip (306).
3. The power meter interface chucking device as recited in claim 1, wherein: the interface nail (103) is provided with threads.
4. A power meter interface chucking device as recited in claims 1 or 3, wherein: the panel (102) is provided with an interface hole (106) matched with the interface nail (103) and the transmission inserting sheet (104).
5. The power meter interface chucking device as recited in claim 1, wherein: and a limit groove (204) matched with the transmission inserting sheet (104) is formed in the top surface of the inserting plate (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111063670.4A CN113783038B (en) | 2021-09-10 | 2021-09-10 | Electric energy meter interface clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111063670.4A CN113783038B (en) | 2021-09-10 | 2021-09-10 | Electric energy meter interface clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113783038A CN113783038A (en) | 2021-12-10 |
| CN113783038B true CN113783038B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111063670.4A Active CN113783038B (en) | 2021-09-10 | 2021-09-10 | Electric energy meter interface clamping device |
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| CN (1) | CN113783038B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114639995A (en) * | 2022-03-03 | 2022-06-17 | 贵州电网有限责任公司 | Self-adaptive joint clamp |
| CN114838863B (en) * | 2022-03-15 | 2023-06-23 | 华能伊敏煤电有限责任公司 | 220T dumper electric control cabinet heat dissipation ventilation monitoring alarm device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206322902U (en) * | 2016-05-24 | 2017-07-11 | 李洪军 | Auto lock plug anti-electric shock socket |
| CN212751293U (en) * | 2020-08-07 | 2021-03-19 | 上海晶驰炭素有限公司 | Graphite electrode assembly |
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2021
- 2021-09-10 CN CN202111063670.4A patent/CN113783038B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206322902U (en) * | 2016-05-24 | 2017-07-11 | 李洪军 | Auto lock plug anti-electric shock socket |
| CN212751293U (en) * | 2020-08-07 | 2021-03-19 | 上海晶驰炭素有限公司 | Graphite electrode assembly |
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| CN113783038A (en) | 2021-12-10 |
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