CN209056823U - The anti-error investment device of plug-in - Google Patents
The anti-error investment device of plug-in Download PDFInfo
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- CN209056823U CN209056823U CN201822079064.1U CN201822079064U CN209056823U CN 209056823 U CN209056823 U CN 209056823U CN 201822079064 U CN201822079064 U CN 201822079064U CN 209056823 U CN209056823 U CN 209056823U
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- gripping member
- connecting hole
- plug
- error
- connecting piece
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Abstract
The utility model provides a kind of anti-error investment device of plug-in, is related to protection of the technical field of presser device.The anti-error investment device of plug-in includes insulation gripping member and metal connecting piece；Hand of the gripping member for operating personnel that insulate is held；One end of insulation gripping member is free end, and the other end for the gripping member that insulate and one end of metal connecting piece are detachably connected, and the other end of metal connecting piece is for being plugged in the limit hole of pressing plate.It solves in the prior art, the limit hole of pressing plate is blocked using insulating tape winding, implements and releases the low efficiency of insulating tape, there is technical issues that insulating tape fell off.Hand of the insulation gripping member of the utility model for operating personnel is held, and metal connecting piece is for being plugged in the limit hole of pressing plate, and to realize the measure for doing anti-error investment to plug-in pressing plate, operating efficiency is high, it is ensured that equipment is reliable for operation.
Description
Technical field
The utility model relates to protect the technical field of presser device, filled more particularly, to a kind of anti-error investment of plug-in
It sets.
Background technique
Protective relaying device refers to when the force device in electric system, such as: generator, route or electric system
Failure has occurred in itself, when jeopardizing the safe operation of electric system, can send warning signal in time to operator, or
Person directly issues trip signal to the breaker controlled, to terminate a kind of automation equipment of these events development.
It is above-mentioned in the prior art, relay protection automation personnel is in relay protection device service work, it is often necessary to screen cabinet
Interior plug-in pressing plate does anti-error investment measure, currently, blocking the limit hole of pressing plate, using insulating tape winding mainly to keep away
Exempt from running equipment by malfunction.
But it when operating every time, is required to dismount insulating tape, implements and release the low efficiency of insulating tape；
And the problem of due in terms of the quality of insulating tape, can also there be the risk that insulating tape falls off, running equipment is caused to exist
By malfunction, there are security risks.
Utility model content
The purpose of this utility model is to provide a kind of anti-error investment devices of plug-in, to solve to exist in the prior art
, the limit hole of pressing plate is blocked using insulating tape winding, implements and release the low efficiency of insulating tape, there are insulating tapes
The technical issues of risk to fall off.
The anti-error investment device of a kind of plug-in provided by the utility model, including insulation gripping member and metal connecting piece；
Hand of the gripping member for operating personnel that insulate is held；
One end of insulation gripping member is free end, and the other end for the gripping member that insulate and one end of metal connecting piece detachably connect
It connects, the other end of metal connecting piece is for being plugged in the limit hole of pressing plate.
Further, insulate gripping member the other end be equipped with the first connecting hole, one end of metal connecting piece is detachably connected
In the first connecting hole.
Further, link slot is equipped in the first connecting hole, one end of metal connecting piece is equipped with connecting column；
Connecting column is connect with link slot, to realize that one end of metal connecting piece is connected in the first connecting hole.
Further, the side wall of gripping member of insulating is equipped with the second connecting hole, and the second connecting hole is connected with the first connecting hole；
The side wall of metal connecting piece is equipped with third connecting hole, is connected between the second connecting hole and third connecting hole by connector
It connects, with the fixation for realizing metal connecting piece between the gripping member that insulate.
Further, the quantity of the second connecting hole is multiple, and the quantity of third connecting hole is the quantity with the second connecting hole
Corresponding multiple, the quantity of connector is corresponding with the quantity of the second connecting hole multiple；
One connector connects second connecting hole, a third connecting hole.
Further, insulation gripping member is triangular prism, is set on the outside of triangular prism there are three joint face, and adjacent connection
The junction in face forms arc surface.
Further, joint face is equipped with anti-slip part.
Further, anti-slip part is multiple anti-sliding burrs, and multiple anti-sliding burrs are arranged in an axially parallel mode with insulation gripping member；
The free end of the self-insulating gripping member of bump sizes of multiple anti-sliding burrs, until the other end of insulation gripping member successively becomes
Greatly.
Further, joint face is equipped with carved region.
Further, the other end of metal connecting piece is equipped with arc end.
The anti-error investment device of a kind of plug-in provided by the utility model, hand of the insulation gripping member for operating personnel are held
It holds, convenient for the operation by human hand of operating personnel, implements and release high-efficient；One end of insulation gripping member is free end, is convenient for operation
The hand of personnel is held；The other end of insulation gripping member and one end of metal connecting piece are detachably connected, to be held using insulation
Gripping member drives metal connecting piece to carry out operation, and it is more convenient to operate；Being between insulation gripping member and metal connecting piece can
Dismantling connection when damage, is conveniently replaceable；The other end of metal connecting piece is for being plugged in the limit hole of pressing plate, with realization pair
Plug-in pressing plate does anti-error investment measure；The operating time can be greatly reduced in the utility model, reduce in work and lose safety
The risk of measure, improves work efficiency, and increases economic benefit, finally realizes the purpose for avoiding running equipment malfunction.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural representation of the anti-error investment device upper surface of the first plug-in provided by the embodiment of the utility model
Figure；
Fig. 2 is the structural representation of the anti-error investment device lower end surface of the first plug-in provided by the embodiment of the utility model
Figure；
Fig. 3 is the main view of the anti-error investment device of plug-in provided by the embodiment of the utility model；
Fig. 4 is the cross-sectional view in Fig. 3 along the direction A-A；
Fig. 5 is the portion the B enlarged drawing in Fig. 4；
Fig. 6 is the bottom view of the anti-error investment device of plug-in provided by the embodiment of the utility model；
Fig. 7 is the top view of the anti-error investment device of plug-in provided by the embodiment of the utility model；
Fig. 8 is the exploded view of the anti-error investment device of second of plug-in provided by the embodiment of the utility model；
Fig. 9 is the structural schematic diagram of pressing plate provided by the embodiment of the utility model.
Icon: 100- insulation gripping member；200- metal connecting piece；300- pressing plate；The first connecting hole of 101-；102-
Link slot；The second connecting hole of 103-；104- joint face；105- arc surface；106- anti-slip part；The carved region 107-；201-
Connecting column；202- third connecting hole；203- connector；204- arc end；301- limit hole.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is the structural representation of the anti-error investment device upper surface of the first plug-in provided by the embodiment of the utility model
Figure；Fig. 2 is the structural schematic diagram of the anti-error investment device lower end surface of the first plug-in provided by the embodiment of the utility model.
As shown in Fig. 1~2, a kind of anti-error investment device of plug-in provided by the utility model, including insulation gripping member 100
With metal connecting piece 200；
Hand of the gripping member 100 for operating personnel that insulate is held；
One end of insulation gripping member 100 is free end, the other end for the gripping member 100 that insulate and the one of metal connecting piece 200
End is detachably connected, and the other end of metal connecting piece 200 is for being plugged in the limit hole 301 of pressing plate 300.
In Fig. 1, insulation gripping member 100 is made of the material of Teflon, has heat resistance, chemical inertness, excellent
The features such as stability, low frictional properties of insulating.
The gripping member 100 that insulate can also be made of the material of plastics, as long as playing the role of insulation.
Insulation gripping member 100 is vertically arranged rod-shaped, and between 15mm~20mm, the present embodiment takes height value range
Value is 15mm, and for diameter value range between 5mm~8mm, the present embodiment value is 6mm, the radius value model of outside rounded corner
It is trapped among between 0.5mm~0.8mm, the present embodiment value is 0.5mm.
Metal connecting piece 200 is made of the material of brass.
Metal connecting piece 200 is vertically arranged rod-shaped, and between 8mm~10mm, the present embodiment takes height value range
Value is 8mm, and for diameter value range between 2.5mm~3.0mm, the present embodiment value is 2.8mm.
The upper end of insulation gripping member 100 is free end, the insulate lower end of gripping member 100 and the upper end of metal connecting piece 200
It is detachably connected, when so that the damage of insulation gripping member 100 or metal connecting piece 200 damaging, can be convenient for replacing.
The lower end of metal connecting piece 200 is for being plugged and fixed in the limit hole 301 of pressing plate 300.
In one embodiment of the utility model, the hand of operating personnel is held with a firm grip the gripping member 100 that insulate, by metal connecting piece
200 lower end is gradually inserted in the limit hole 301 of pressing plate 300, and the lower end surface of insulation gripping member 100 is made to be connected to pressing plate 300
Around limit hole 301, the process that limit hole 301 is blocked using metal connecting piece 200 is completed, mode of operation is simple, operation effect
Rate is high, has achieved the purpose that 301 maloperation of limit hole for preventing pressing plate 300.
Fig. 3 is the main view of the anti-error investment device of plug-in provided by the embodiment of the utility model；
Fig. 4 is the cross-sectional view in Fig. 3 along the direction A-A；Fig. 5 is the portion the B enlarged drawing in Fig. 4；Fig. 6 is that the utility model is real
The bottom view of the anti-error investment device of plug-in of example offer is provided；Fig. 7 is the anti-miscarrying of plug-in provided by the embodiment of the utility model
Enter the top view of device.
As shown in figure 3 to figure 7, further, the other end of insulation gripping member 100 is equipped with the first connecting hole 101, metal connection
One end of part 200 is detachably connected in the first connecting hole 101.
In Fig. 2, the lower end of insulation gripping member 100 is equipped with the first connecting hole 101, and the internal diameter of the first connecting hole 101 is greater than
The outer diameter of metal connecting piece 200 is fixed in the first connecting hole 101 so that the upper end of metal connecting piece 200 can accommodate, and is utilized
Metal connecting piece 200 is fixed on insulation gripping member 100 by the first connecting hole 101.
In one embodiment of the utility model, the upper end of metal connecting piece 200 is inserted into the first connecting hole 101, with
It is fixedly connected on metal connecting piece 200 on insulation gripping member 100；When metal connecting piece 200 is damaged, by metal connecting piece
200 take out out of first connecting hole 101, the metal connecting piece 200 then more renewed, and the replacement of metal connecting piece 200 is convenient.
In another embodiment of the utility model, multiple raised particles are set in the lower end surface of insulation gripping member 100, with
Using the frictional force between the lower end surface and pressing plate 300 of multiple raised particle increase insulation gripping members 100, make metal connecting piece
200 are securely attached in limit hole 301.
In the other embodiments of the utility model, in the multiple raised lines of the lower end surface setting of insulation gripping member 100, with benefit
With the frictional force between the lower end surface and pressing plate 300 of multiple raised line increase insulation gripping members 100, keep metal connecting piece 200 firm
Solid be connected in limit hole 301.
Fig. 8 is the exploded view of the anti-error investment device of second of plug-in provided by the embodiment of the utility model；Fig. 9 is this reality
With the structural schematic diagram for the pressing plate that new embodiment provides.
As shown in Fig. 8~9, further, it is equipped with link slot 102 in the first connecting hole 101, the one of metal connecting piece 200
End is equipped with connecting column 201；
Connecting column 201 is connect with link slot 102, to realize that one end of metal connecting piece 200 is connected to the first connecting hole 101
It is interior.
As shown in figure 8, link slot 102 is the upper end shape in the first connecting hole 101 in one embodiment of the utility model
At the cylinder groove being recessed inwardly；Connecting column 201 is the upward cylinder formed in the upper end of metal connecting piece 200；Make
Used time, the upper end of metal connecting piece 200 are inserted upwardly into the first connecting hole 101, and connecting column 201 is connected to link slot 102, with reality
Existing metal connecting piece 200 is connected in the first connecting hole 101, it is ensured that consolidating between metal connecting piece 200 and insulation gripping member 100
It is fixed.
In another embodiment of the utility model, link slot 102 is in the inside of the upper end of the first connecting hole 101 formation
The cylinder groove of recess；Connecting column 201 is the upward polygon prism formed in the upper end of metal connecting piece 200；In use, golden
The upper end for belonging to connector 200 is inserted upwardly into the first connecting hole 101, and connecting column 201 is connected in link slot 102, to realize gold
Belonging to connector 200 to be connected in the first connecting hole 101, the structure of cylinder groove is connected to using polygon prism, polygon prism clamping is secured,
Make to connect between metal connecting piece 200 and the gripping member 100 that insulate more secured.
Further, the side wall of insulation gripping member 100 is equipped with the second connecting hole 103, and the second connecting hole 103 is connect with first
Hole 101 is connected；
The side wall of metal connecting piece 200 is equipped with third connecting hole 202, between the second connecting hole 103 and third connecting hole 202
It is connected by connector 203, with the fixation for realizing metal connecting piece 200 between the gripping member 100 that insulate.
In one embodiment of the utility model, the second connecting hole 103 be insulation gripping member 100 side wall formed incline
The side wall of the first connecting hole 101 is arranged in the first cylindrical hole obliquely, the end of the second connecting hole 103；Third connecting hole 202
It is the second cylindrical hole matched with the first cylindrical hole in the side wall formation of metal connecting piece 200；Connector 203 uses rubber
Plug, rubber stopper pass through the first cylindrical hole and are connected in the second cylindrical hole, to realize metal connecting piece 200 and insulation gripping member 100
Between be connected and fixed；Second connecting hole 103, third connecting hole 202 are all made of the setting of direction diagonally downward, rubber stopper connection
Afterwards, it is not easy to deviate from, link position is secured.
In another embodiment of the utility model, the second connecting hole 103 be insulation gripping member 100 side wall formed
The side wall of the first connecting hole 101 is arranged in first cylindrical hole of horizontal direction, the end of the second connecting hole 103；Third connecting hole
202 be the second cylindrical hole in the horizontal direction of the side wall formation of metal connecting piece 200 matched with the first cylindrical hole；Connection
Part 203 use rubber stopper, rubber stopper pass through the first cylindrical hole be connected in the second cylindrical hole, with realize metal connecting piece 200 with
Being connected and fixed between insulation gripping member 100；Second connecting hole 103, third connecting hole 202 are all made of horizontally arranged, rubber
After rubber plug connection, link position is firm, easy to disassemble.
In another embodiment of the utility model, the of horizontal direction is formed in the side wall of insulation gripping member 100
One cylindrical hole forms the second cylindrical hole of a horizontal direction in the side wall of metal connecting piece 200, using a rubber stopper
The first cylindrical hole of insulation gripping member 100, the second cylindrical hole of metal connecting piece 200 are sequentially passed through, rubber stopper being capable of edge
The insulation left side of gripping member 100, any one rectangular taking-up of right side.
Further, the quantity of the second connecting hole 103 is multiple, and the quantity of third connecting hole 202 is and the second connecting hole
103 quantity is corresponding multiple, and the quantity of connector 203 is corresponding multiple with the quantity of the second connecting hole 103；
One connector 203 connects 103, third connecting holes 202 of second connecting hole.
In one embodiment of the utility model, multiple second connecting holes 103 are formed in the side wall of insulation gripping member 100,
Multiple third connecting holes 202, second connecting hole 103 and 202 phase of third connecting hole are formed on metal connecting piece 200
It is corresponding, and 203 clamping fixed of connector is used, from vertical direction to metal connecting piece 200 on insulation gripping member 100
Position be fixed.
In one embodiment of the utility model, connector 203 is rubber stopper, and the inner end of rubber stopper is connected to the second company
Connect in hole 103, the outboard end of rubber stopper forms circular grip cap, after rubber stopper is connected to two connecting holes, grip cap it is interior
Side fastening keeps the link position of connector 203 secured on the outer peripheral surface of insulation gripping member 100.
Further, insulation gripping member 100 is triangular prism, is set on the outside of triangular prism there are three joint face 104, and phase
The junction of adjacent joint face 104 forms arc surface 105.
In one embodiment of the utility model, insulation gripping member 100 uses triangular prism, so that insulation gripping member 100
End face forms triangle, and in Fig. 9, the 301 lateral surface position of limit hole of pressing plate 300 forms the structure of triangle, and insulation is held
The lower end surface of part 100 also uses the structure of triangle, and the lower end surface of insulation gripping member 100 is connected to the limit hole 301 of pressing plate 300
Around, it is ensured that the position of 301 surrounding of the limit hole connection of pressing plate 300 is secured.
Form arc surface 105 in the junction of adjacent connection surfaces 104, arc surface 105 can hand to operating personnel into
Row protection, prevents plowing from.
Further, joint face 104 is equipped with anti-slip part 106.
In one embodiment of the utility model, it is equipped with anti-slip part 106 on the top of joint face 104, anti-slip part 106 uses
Multiple rows of protrusion particle, and the radius of the raised particle of upper row is smaller, and the radius of the raised particle of lower row is larger, is convenient for operation people
The hand of member holds, uses.
Further, anti-slip part 106 is multiple anti-sliding burrs, and multiple anti-sliding burrs and the axial direction of insulation gripping member 100 are flat
Row setting；
The free end of the self-insulating gripping member 100 of the bump sizes of multiple anti-sliding burrs, until the other end of insulation gripping member 100
Successively become larger.
In one embodiment of the utility model, the multiple rows of raised line being laterally arranged of the use of anti-slip part 106, and upper row
The convex radius of raised line is smaller, and the convex radius of the raised line of lower row is larger, using the structure of raised line, makes operating personnel's
The position of finger tripe is held securely, is not fallen out.
In another embodiment of the utility model, anti-slip part 106 uses multiple rows of raised line being laterally arranged, and upper row
Raised line convex radius it is smaller, the convex radius of the raised line of lower row is larger, in addition, the length of the raised line of upper row compared with
Short, the length of the raised line of lower row is longer, convenient for the finger tripe clamping of operating personnel.
Further, joint face 104 is equipped with carved region 107.
In one embodiment of the utility model, carved region 107 is the engraving being recessed inwardly formed on joint face 104
Face can also be carved in carved region 107 according to the needs of use in carved region 107 using the logo of icking tool engraving company
The name for carving user is distinguished convenient for user and is used using department etc..
Further, the other end of metal connecting piece 200 is equipped with arc end 204.
Arc end 204 is formed in the lower end of metal connecting piece 200, arc end 204 is inserted into limit hole 301, using circular arc
The structure at end 204, protects the lateral surface of limit hole 301, avoids the lower end of metal connecting piece 200 to limit hole 301
Lateral surface is scratched, while also being protected to the hand of operating personnel, is prevented plowing from.
The anti-error investment device of plug-in provided by the utility model, in use, the time of operation can be greatly reduced,
The risk for losing safety measure in work is reduced, the malfunction of running equipment is effectively avoided, improves work efficiency, increase
Economic benefit；It is applied widely as a kind of specific purpose tool suitable for relay protection profession plug-in pressing plate connection sheet.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of anti-error investment device of plug-in, which is characterized in that including insulation gripping member (100) and metal connecting piece (200)；
Hand of insulation gripping member (100) for operating personnel is held；
One end of insulation gripping member (100) is free end, and the other end and the metal of insulation gripping member (100) connect
One end of fitting (200) is detachably connected, and the other end of the metal connecting piece (200) is used to be plugged on the limit of pressing plate (300)
In position hole (301).
2. the anti-error investment device of plug-in according to claim 1, which is characterized in that insulation gripping member (100)
The other end is equipped with the first connecting hole (101), and one end of the metal connecting piece (200) is detachably connected on first connecting hole
(101) in.
3. the anti-error investment device of plug-in according to claim 2, which is characterized in that in first connecting hole (101)
Equipped with link slot (102), one end of the metal connecting piece (200) is equipped with connecting column (201)；
The connecting column (201) connect with the link slot (102), to realize one end connection of the metal connecting piece (200)
In first connecting hole (101).
4. the anti-error investment device of plug-in according to claim 3, which is characterized in that insulation gripping member (100)
Side wall is equipped with the second connecting hole (103), and second connecting hole (103) is connected with first connecting hole (101)；
The side wall of the metal connecting piece (200) is equipped with third connecting hole (202), second connecting hole (103) and described the
It is connected between three connecting holes (202) by connector (203), to realize that the metal connecting piece (200) and the insulation are held
Fixation between part (100).
5. the anti-error investment device of plug-in according to claim 4, which is characterized in that second connecting hole (103)
Quantity be it is multiple, the quantity of the third connecting hole (202) is corresponding more with the quantity of second connecting hole (103)
A, the quantity of the connector (203) is corresponding multiple with the quantity of second connecting hole (103)；
One connector (203) connects second connecting hole (103), a third connecting hole (202).
6. the anti-error investment device of plug-in according to claim 1, which is characterized in that the insulation gripping member (100) is
Triangular prism is set on the outside of the triangular prism there are three joint face (104), and the junction of the adjacent joint face (104)
It is formed arc surface (105).
7. the anti-error investment device of plug-in according to claim 6, which is characterized in that the joint face (104) is equipped with
Anti-slip part (106).
8. the anti-error investment device of plug-in according to claim 7, which is characterized in that the anti-slip part (106) is multiple
Anti- sliding burr, multiple anti-sliding burrs are arranged in an axially parallel mode with insulation gripping member (100)；
The bump sizes of multiple anti-sliding burrs are from the free end of insulation gripping member (100), until the insulation gripping member
(100) the other end successively becomes larger.
9. the anti-error investment device of plug-in according to claim 8, which is characterized in that the joint face (104) is equipped with
Carved region (107).
10. the anti-error investment device of plug-in according to claim 1, which is characterized in that the metal connecting piece (200)
The other end is equipped with arc end (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079064.1U CN209056823U (en) | 2018-12-10 | 2018-12-10 | The anti-error investment device of plug-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079064.1U CN209056823U (en) | 2018-12-10 | 2018-12-10 | The anti-error investment device of plug-in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209056823U true CN209056823U (en) | 2019-07-02 |
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ID=67054983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822079064.1U Active CN209056823U (en) | 2018-12-10 | 2018-12-10 | The anti-error investment device of plug-in |
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| Country | Link |
|---|---|
| CN (1) | CN209056823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390866A (en) * | 2018-12-10 | 2019-02-26 | 广东电网有限责任公司 | The anti-error investment device of plug-in |
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2018
- 2018-12-10 CN CN201822079064.1U patent/CN209056823U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390866A (en) * | 2018-12-10 | 2019-02-26 | 广东电网有限责任公司 | The anti-error investment device of plug-in |
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