CN106684577A - Multi-side pressing type intermediate quick energy-saving conductive connector - Google Patents
Multi-side pressing type intermediate quick energy-saving conductive connector Download PDFInfo
- Publication number
- CN106684577A CN106684577A CN201710124910.4A CN201710124910A CN106684577A CN 106684577 A CN106684577 A CN 106684577A CN 201710124910 A CN201710124910 A CN 201710124910A CN 106684577 A CN106684577 A CN 106684577A
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- China
- Prior art keywords
- hole
- pressing type
- interior
- multiaspect
- threading
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/54—Bayonet or keyhole
Abstract
The invention relates to a multi-side pressing type intermediate quick energy-saving conductive connector, comprising an intermediate conductive head with at least two external-thread ends, each external-thread end is provided with a conductive wire locking device, each conductive wire locking device comprises an external locking nut, each external locking nut is provided with a socket hole running through its two ends, one end of each socket hole is provided with an internal thread in threaded connection to the corresponding external-thread end, each conducive wire locking device also comprises an internal pass tension sleeve and a plurality of press balls, each internal pass tension sleeve is provided with a wire hole inside, one end of each wire hole leads to the outer end of the corresponding internal pass tension sleeve, the wall of each internal pass tension sleeve is provided with through holes corresponding to the corresponding press balls, and the through holes are communicated with the outer wall of the corresponding internal pass tension sleeve and the corresponding wire hole; the press balls are arranged in the through holes and raised out of the through holes; the external locking nuts sleeve the internal pass tension sleeves, and the inner wall of the socket hole of each external locking nut is provided with a pressing conical face corresponding to the through hole distribution range. The multi-side pressing type intermediate quick energy-saving conductive connector has the advantages of good locking force reliability, good operational simplicity and convenience, reusability and the like.
Description
Technical field
Plugged into middle conductive contact the present invention relates to a kind of electric power conduction, it is quick in the middle of particularly a kind of multiaspect roof pressing type
Energy-conservation conductive contact.
Background technology
Current electric power conduction to be plugged into and include middle conductive head with middle conductive contact, and middle conductive head two ends are provided with line
Folder, wire clamp is U-shaped, and wire is placed in the U-shaped opening of wire clamp, is then drawn close the opening of wire clamp by hydraulic tongs, realizes wire
Clamping.But, the structure installs complicated, is difficult to dismantle wire after connection, can not be come into operation again after wire dismounting（If
If terminal conductive connection head is reused, it is easily broken off）.Further, since high-tension cable is generally bare wire, hydraulic tongs length compared with
Long, if plugging into wire in the case of powered, hydraulic tongs easily touches other phase lines, causes short circuit accident, so, it is unfavorable for band
Electric operation.But, the repairing of power system generally requires livewire work, otherwise brings huge to people's lives, industrial production
Influence.Therefore, current middle conductive contact significant discomfort is closed and used.
Therefore, we have developed a kind of new middle conductive contact, including middle conductive head, middle conductive head is provided with two
Individual male threaded stub, is provided with clamp cavity in male threaded stub, clamp cavity wall portion is provided with fluting along its axis direction.External screw thread
Outer lock-nut is bolted with outside termination, outer lock-nut is provided with through the set hole at its two ends, and set hole one end is provided with internal thread, interior spiral shell
Line is threadedly coupled with male threaded stub, and set hole other end correspondence clamp cavity outer wall is provided with the extruding conical surface.In addition, male threaded stub
Outside is additionally provided with screw, and screw is connected with clamp cavity from outside to inside, and screw is provided with lock screw.When using, unscrew external lock
Only nut and lock screw is back-outed outside clamp cavity, the conductor wire that will peel insulating barrier off is inserted through outer lock-nut and pressed from both sides
In line cavity, outer lock-nut is then tightened, finally, lock screw is screwed into clamp cavity.This mode needs two steps
The rapid metal wire by wire is locked, its complex operation, and plugging into, the wire time is long, and locking force is uneven, and clamping dynamics is not good, leads
The loss of power is sent a telegraph, and lock screw simply falls out, and is unfavorable for being applied during work high above the ground.
The content of the invention
It is an object of the invention to overcome the shortcomings of that above-mentioned prior art is present, and provide a kind of simple and reasonable for structure, lock
Clamp force degree is reliable, wire of plugging into is settled at one go, locking force is uniform, conductive contact performance is strong, reduces power consumption, simple to operate
Fast energy-saving conductive contact in the middle of convenient multiaspect roof pressing type.
The object of the present invention is achieved like this：
Fast energy-saving conductive contact in the middle of a kind of multiaspect roof pressing type, including middle conductive head, middle conductive head are provided with least two
Male threaded stub, male threaded stub is provided with conductor wire locking device, and conductor wire locking device includes outer lock-nut, outer locking
Nut is provided with through the set hole at its two ends, and set hole one end is provided with internal thread, and internal thread is threadedly coupled with male threaded stub, its feature
It is that the conductor wire locking device also includes interior threading stringing set and multiple line ball holders；Threading is provided with interior threading stringing set
Interior threading stringing set outer face is led in hole, threading hole one end, and correspondence line ball holder is provided with through hole, through hole on interior threading stringing jacket wall
The outer wall and threading hole covered with interior threading stringing are connected；Line ball holder sets in through-holes and protrudes from outside through hole；Outer locking spiral shell
Mother set is located at outside interior threading stringing set, and the set hole inwall correspondence through hole distribution of outer lock-nut is provided with the extruding conical surface.It is such
The line ball holder of fast energy-saving conductive contact can be N number of in the middle of multiaspect roof pressing type, in rule or be randomly distributed, many to wire
Individual position top pressure.Because the structure good connecting effect, i.e. conductive contact effect are good, the loss of power Transmission is reduced, meanwhile, operation
Convenient, installation effectiveness is high, plays certain energy-conserving action.
The purpose of the present invention can also be solved using following technical measures：
Used as a more specifically scheme, the line ball holder is copper pearl, steel ball, pin, voussoir, card, fixture block, corner block, different
Property small rigid conductive material etc., multiple through holes of interior threading stringing set are distributed on interior threading stringing set periphery, through hole and threading hole
The diameter of one end of connection is less than line ball holder diameter, one end of through hole and interior threading stringing set ft connection with diameter greater than or
Equal to line ball holder diameter.
Further, the line ball holder surface is provided with annular knurl, to strengthen the frictional force between its surface and conductor wire.
Further, the conductor wire locking device also includes elastic component, elastic component is arranged in the set hole of outer lock-nut,
And be crimped between middle conductive head and interior threading stringing set.After setting up spring, it is possible to achieve outer lock-nut and outer spiral shell
The self-locking of line termination, while so that conductive contact do not plug into wire when, its interior threading stringing set and multiple line ball holders are by bullet
Property part is pressed in outer lock-nut.
Further, the elastic component is the compression spring by copper wire or steel wire wound, or, elastic component is elastic gum
Set；Interior threading stringing set inner face is provided with positioning convex or detent, elastic component one end and positioning convex or detent phase
Coordinate.
Further, the threading hole other end leads to the inner face of interior threading stringing set.That is, the threading hole other end does not lead to
The inner face of inside threading stringing set（It is blind hole）Also possible, certainly, when threading hole is through hole, the pluggable amount of wire is got over
Greatly, fixed effect is more preferably.
Further, it is provided with cavity in the male threaded stub of the middle conductive head.If conductor wire locking device also includes
During flexible part, cavity can be positioned to one end of elastic component.Certainly, after setting cavity, conductive contact inside is inserted
The position of wire increases, and increases the joint face of wire, the tautness that raising is plugged into.
Further, the male threaded stub center of the middle conductive head is provided with separated time tip nail.Due to 25 square millimeters
Main line above, it is typically twisted into by the small copper cash of multiply or aluminum steel, and separated time tip nail can be inserted between small copper cash or aluminum steel
In gap so that small copper cash or aluminum steel are strutted toward peripheral direction, meanwhile, increased small copper cash or aluminum steel and conductor wire locking device
Frictional force so that wire is held tighter.
Further, the inner periphery of the interior threading stringing set is provided with position limiting convex ring, and it is tight that the through hole is distributed in interior threading
At the periphery of line set middle part.Position limiting convex ring is less than line ball holder diameter with the gap of outer locking nut inner wall, therefore, it can effectively anti-
Only line ball holder is dropped out.
Further, the threading outer end of hole of the interior threading stringing set is provided with flare openings, in order to the metal wire of wire
Easily inject in threading hole.
Further, the outer locking nut outer wall is provided with anti-slip tank, and the personnel of operation can directly grasp outer locking
The anti-skidding groove location of nut is tightened.
Further, the middle conductive head is in yi word pattern, L-type, T-shaped, Y types or cross, and its each termination is respectively institute
State male threaded stub.That is, when middle conductive head is in yi word pattern and L-type, with two male threaded stubs；Middle conductive head
During T-shaped and Y types, with three male threaded stubs；When middle conductive head is in cross, with four male threaded stubs.At present
Middle conductive head there was only two ends, and be straight body, and this structure can be designed to 2-4 ends, also, two ends can be with
It is the shape turned round so that this product can have wider array of applicable situation.
Beneficial effects of the present invention are as follows：
（1）In the middle of such multiaspect roof pressing type fast energy-saving conductive contact by the guide screw movement of outer lock-nut combine its conical surface with
The routing motion of line ball holder, it is possible to achieve the power of very little（The instrument of not needing auxiliary）Outer lock-nut can be just turned, and is caused
During line ball holder compresses conductive line surfaces, or even line ball holder can snap in wire, good locking and conductive contact is formed；
（2）The outer lock-nut of fast energy-saving conductive contact is threadedly coupled with middle conductive head in the middle of such multiaspect roof pressing type, when
The wire tensioning at its two ends, the self-lock ability of its threaded connection is then stronger, prevents outer lock-nut from releasing automatically；
（3）In the middle of such multiaspect roof pressing type fast energy-saving conductive contact unlike the wire clamp of prior art, it is necessary to bend, will not
Its mechanical structure is destroyed, can Reusability；
（4）Fast energy-saving conductive contact is operated without hydraulic tongs in the middle of such multiaspect roof pressing type, and operating personnel can take insulation
Gloves can realize livewire work, can't go out first potential safety hazard as mentioned in the background art, using quite safe, especially fit
Close high-altitude hot line job.
Brief description of the drawings
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is one embodiment of the invention use state cross section structure diagram.
Fig. 3 is another embodiment of the present invention use state cross section structure diagram.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment one, referring to shown in Fig. 1 and Fig. 2, a kind of fast energy-saving conductive contact in the middle of multiaspect roof pressing type, including centre is conductive
First 1, middle conductive head 1 is provided with two male threaded stubs 11, and male threaded stub 11 is provided with conductor wire locking device, conductor wire lock
Tight device includes outer lock-nut 2, and outer lock-nut 2 is provided with through the set hole 23 at its two ends, and set one end of hole 23 is provided with internal thread
24, internal thread 24 is threadedly coupled with male threaded stub 11.The conductor wire locking device also includes interior threading stringing set 3 and multiple
Line ball holder 5；Threading hole 33 is provided with interior threading stringing set 3, the one end of threading hole 33 leads to interior threading stringing and covers 3 outer faces, interior
Threading stringing covers correspondence line ball holder 5 on 3 walls and is provided with through hole 32, and through hole 32 covers 3 outer wall and threading hole 33 with interior threading stringing
Connection；Line ball holder 5 is arranged in through hole 32 and protrudes from outside through hole 32；Outer lock-nut 2 is set in interior threading stringing set 3
Outward, the inwall correspondence distribution of through hole 32 of set hole 23 of outer lock-nut 2 is provided with the extruding conical surface 22.
The line ball holder 5 is the conductive ball such as copper pearl, steel ball, in multiple through holes 32 of interior threading stringing set 3 are distributed on
Threading stringing covers 3 peripheries, the diameter of one end that through hole 32 is connected with threading hole 33 less than the diameter of line ball holder 5, through hole 32 with it is interior
Threading stringing cover one end of 3 ft connections with diameter greater than or equal to the diameter of line ball holder 5.
The conductor wire locking device also includes elastic component 4, elastic component 4 be arranged in the set hole 23 of outer lock-nut 2 and
It is crimped between middle conductive head 1 and interior threading stringing set 3.
The elastic component 4 is the compression spring by copper wire or steel wire wound；Interior threading stringing covers 3 inner faces and is provided with fixed
Position raised 31, is provided with cavity 12 in the male threaded stub 11 of the middle conductive head 1, the two ends of elastic component 4 respectively with positioning convex
31 and cavity 12 be engaged.
The other end of the threading hole 33 leads to the inner face of interior threading stringing set 3.
The inner periphery of the interior threading stringing set 3 is provided with position limiting convex ring 35, and the through hole 32 is distributed in interior threading stringing
Cover at 3 middle part peripheries.
The outer end of threading hole 33 of the interior threading stringing set 3 is provided with flare openings 34；The outer wall of outer lock-nut 2 sets
There is anti-slip tank 21.
The middle conductive head 1 is in yi word pattern, and two termination is respectively the male threaded stub 11.
Embodiment two, referring to shown in Fig. 1 and Fig. 3, fast energy-saving conductive contact in the middle of a kind of multiaspect roof pressing type, including centre
Conductive head 1, middle conductive head 1 is provided with two male threaded stubs 11, and male threaded stub 11 is provided with conductor wire locking device, conductive
Line locking device includes outer lock-nut 2, and outer lock-nut 2 is provided with through the set hole 23 at its two ends, and set one end of hole 23 is provided with interior
Screw thread 24, internal thread 24 is threadedly coupled with male threaded stub 11.The conductor wire locking device also includes that interior threading stringing covers 3 Hes
Multiple line ball holders 5；Threading hole 33 is provided with interior threading stringing set 3, the one end of threading hole 33 leads to interior threading stringing and covers 3 outer ends
Face, interior threading stringing covers correspondence line ball holder 5 on 3 walls and is provided with through hole 32, and through hole 32 covers 3 outer wall and threading with interior threading stringing
Hole 33 connects；Line ball holder 5 is arranged in through hole 32 and protrudes from outside through hole 32；Outer lock-nut 2 is set in interior threading stringing
Outside set 3, the inwall correspondence distribution of through hole 32 of set hole 23 of outer lock-nut 2 is provided with the extruding conical surface 22.
The line ball holder 5 is the conductive ball such as copper pearl, steel ball（Can also be non-conductive ceramic balls）, interior threading is tight
Multiple through holes 32 of line set 3 are distributed on interior threading stringing and cover 3 peripheries, and the diameter of one end that through hole 32 is connected with threading hole 33 is less than
The diameter of line ball holder 5, through hole 32 and interior threading stringing cover one end of 3 ft connections with diameter greater than or equal to line ball holder 5 it is straight
Footpath.
The conductor wire locking device also includes elastic component 4, elastic component 4 be arranged in the set hole 23 of outer lock-nut 2 and
It is crimped between middle conductive head 1 and interior threading stringing set 3.
The elastic component 4 is the compression spring by copper wire or steel wire wound；Interior threading stringing covers 3 inner faces and is provided with fixed
Position raised 31, is provided with cavity 12 in the male threaded stub 11 of the middle conductive head 1, the two ends of elastic component 4 respectively with positioning convex
31 and cavity 12 be engaged.The inner face center of cavity 12 is provided with separated time tip nail 13.
The other end of the threading hole 33 leads to the inner face of interior threading stringing set 3.
The inner periphery of the interior threading stringing set 3 is provided with position limiting convex ring 35, and the through hole 32 is distributed in interior threading stringing
Cover at 3 middle part peripheries.
The outer end of threading hole 33 of the interior threading stringing set 3 is provided with flare openings 34；The outer wall of outer lock-nut 2 sets
There is anti-slip tank 21.
The middle conductive head 1 is in yi word pattern, and two termination is respectively the male threaded stub 11.
Its operation principle is：First the electro-insulating rubber skin 62 of the end of cable 6 is peeled off, exposes multiply plain conductor 61, by gold
Category wire 61 is inserted in the threading hole 33 of interior threading stringing set 3 through flare openings 34, and separated time tip nail 13 enters to many money paid for shares
Major part is separated into the gap of category wire 61 and by the front end of plain conductor 61（Loudspeaker）Shape, gently pulls outward, in line ball holder 5
And under the top power effect of the extruding conical surface 22 of outer lock-nut 2, in the presence of elastic component 4, line ball holder 5 is so as to by metal
Wire 61 is bitten.Now, if necessary to obtain bigger coupling mechanism force, outer lock-nut 2 can be tightened, its extruding conical surface 22 from
Direction constantly extrudes line ball holder 5, meanwhile, elastic component 4 is compressed, and elastic component 4 discharges bigger pressure and from other direction
Line ball holder 5 is extruded toward the extruding conical surface 22 narrow end, the radial motion of line ball holder 5 tightly bite plain conductor 61,
Realize plugging into for cable 6.As a same reason, plugging into for the other end is also the same.The conductive contact of the structure can bear two tons
Pulling force above.If necessary to unlock, can suitably unscrew outer lock-nut 2, in addition, threading stringing set 3 in ejection inside, makes
Threading stringing set 3 and line ball holder 5 are moved toward the extruding conical surface 22 wide end in obtaining so that line ball holder 5 regains activity enough
Space, now, plain conductor 61 can be extracted outside conductive contact.
Claims (10)
1. a kind of fast energy-saving conductive contact in the middle of multiaspect roof pressing type, including middle conductive head（1）, middle conductive head（1）It is provided with
At least two male threaded stubs（11）, male threaded stub（11）Conductor wire locking device is provided with, conductor wire locking device includes
Outer lock-nut（2）, outer lock-nut（2）It is provided with through the set hole at its two ends（23）, cover hole（23）One end is provided with internal thread
（24）, internal thread（24）With male threaded stub（11）Threaded connection, it is characterized in that, the conductor wire locking device also includes interior wearing
Line stringing set（3）With multiple line ball holders（5）；Interior threading stringing set（3）Inside it is provided with threading hole（33）, threading hole（33）One end leads to
Inside threading stringing set（3）Outer face, interior threading stringing set（3）Correspondence line ball holder on wall（5）It is provided with through hole（32）, through hole
（32）With interior threading stringing set（3）Outer wall and threading hole（33）Connection；Line ball holder（5）It is arranged on through hole（32）In and it is convex
For through hole（32）Outward；Outer lock-nut（2）It is set in interior threading stringing set（3）Outward, outer lock-nut（2）Set hole（23）It is interior
Wall correspondence through hole（32）Distribution is provided with the extruding conical surface（22）.
2. fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to claim 1, it is characterized in that, the line ball holder
（5）It is copper pearl, steel ball, pin, voussoir, card, fixture block or corner block, interior threading stringing set（3）Multiple through holes（32）Uniformly
In interior threading stringing set（3）Periphery, through hole（32）With threading hole（33）The diameter of one end of connection is less than line ball holder（5）Directly
Footpath, through hole（32）With interior threading stringing set（3）One end of ft connection with diameter greater than or equal to line ball holder（5）Diameter.
3. fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to claim 1, it is characterized in that, the line ball holder
（5）Surface is provided with annular knurl.
4. fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to claim 1, it is characterized in that, the conductor wire locking
Device also includes elastic component（4）, elastic component（4）It is arranged on outer lock-nut（2）Set hole（23）It is interior and be crimped on middle conduction
Head（1）With interior threading stringing set（3）Between.
5. the fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to any one of Claims 1-4, it is characterized in that, it is described
Threading hole（33）The other end leads to interior threading stringing set（3）Inner face.
6. fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to claim 5, it is characterized in that, the middle conductive head
（1）Male threaded stub（11）Inside it is provided with cavity（12）.
7. fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to claim 5, it is characterized in that, the middle conductive head
（1）Male threaded stub（11）Center is provided with separated time tip nail（13）.
8. fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to claim 1, it is characterized in that, the interior threading stringing
Set（3）Inner periphery be provided with position limiting convex ring（35）, the through hole（32）It is distributed in interior threading stringing set（3）At the periphery of middle part.
9. fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to claim 1, it is characterized in that, the interior threading stringing
Set（3）Threading hole（33）Outer end is provided with flare openings（34）；The outer lock-nut（2）Outer wall is provided with anti-slip tank（21）.
10. fast energy-saving conductive contact in the middle of multiaspect roof pressing type according to claim 1, it is characterized in that, it is described in the middle of it is conductive
Head（1）In yi word pattern, L-type, T-shaped, Y types or cross, its each termination is respectively the male threaded stub（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710124910.4A CN106684577A (en) | 2017-03-03 | 2017-03-03 | Multi-side pressing type intermediate quick energy-saving conductive connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710124910.4A CN106684577A (en) | 2017-03-03 | 2017-03-03 | Multi-side pressing type intermediate quick energy-saving conductive connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106684577A true CN106684577A (en) | 2017-05-17 |
Family
ID=58862507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710124910.4A Withdrawn CN106684577A (en) | 2017-03-03 | 2017-03-03 | Multi-side pressing type intermediate quick energy-saving conductive connector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742798A (en) * | 2017-10-27 | 2018-02-27 | 镇江科胜电子科技有限公司 | A kind of stretchable electric power connector |
| CN111509409A (en) * | 2020-04-15 | 2020-08-07 | 贵州电网有限责任公司 | Novel exempt from crimping intelligence terminal |
| CN111509487A (en) * | 2020-04-16 | 2020-08-07 | 贵州电网有限责任公司 | Temperature sensing secondary binding post that discolours that easily inserts |
| CN111817031A (en) * | 2020-04-15 | 2020-10-23 | 贵州电网有限责任公司 | Connecting terminal strip capable of being connected quickly |
| CN107579391B (en) * | 2017-09-08 | 2024-04-26 | 广东工业大学 | Circuit adapter and circuit adapter anti-drop device |
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Application publication date: 20170517 |