CN108767568A - A kind of wire test equipment - Google Patents
A kind of wire test equipment Download PDFInfo
- Publication number
- CN108767568A CN108767568A CN201810664795.4A CN201810664795A CN108767568A CN 108767568 A CN108767568 A CN 108767568A CN 201810664795 A CN201810664795 A CN 201810664795A CN 108767568 A CN108767568 A CN 108767568A
- Authority
- CN
- China
- Prior art keywords
- wire rod
- contact block
- pressure head
- wire
- fixing piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- 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
-
- 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
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- 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
- H01R13/627—Snap or like fastening
Abstract
The present invention provides a kind of wire test equipment, including：Conduction column, contact block fixing piece and wire rod pressure head；The contact block fixing piece is equipped with groove, and the bottom portion of groove offers through-hole, the wire rod contact block of trench structure is equipped in the groove, and the conduction column is fixedly connected across the through-hole with the slot bottom of the wire rod contact block；The wire rod pressure head is equipped with the convex pressure head being adapted to the trench structure of the wire rod contact block, and the convex pressure head is for when being put into wire rod to be tested in the trench structure of the wire rod contact block, compressing the wire rod to be tested；Wherein, the wire rod contact block and the conduction column are conductor, and the contact block fixing piece and the wire rod pressure head are insulator.Wire test equipment provided by the invention promotes the accuracy rate of wire test when testing wire rod, to overcome the defect of poor contact between wire rod and test equipment.
Description
Technical field
The present invention relates to technical field of measurement and test more particularly to a kind of wire test equipment.
Background technology
In product processing technique field, to ensure that product is with good performance, the wire rod to being used on product is needed
Various tests are carried out, such as either wire rod whether there is open circuit or short for the conduction resistance value of test wire rod, tensile capacity
The defects of road.
In the prior art, when testing wire rod, crocodile clip or wire clamp etc. is mostly used and fixes wire rod.This test mode exists
The problems such as test equipment is with wire rod poor contact so that wire test accuracy rate is relatively low.
Invention content
The present invention provides a kind of wire test equipment, when testing wire rod, to overcome wire rod and test equipment indirectly
Undesirable defect is touched, the accuracy rate of wire test is promoted.
The present invention provides a kind of wire test equipment, including：Conduction column, contact block fixing piece and wire rod pressure head；It is described
Contact block fixing piece is equipped with groove, and the bottom portion of groove offers through-hole, and the wire rod equipped with trench structure connects in the groove
Contact block, the conduction column are fixedly connected across the through-hole with the slot bottom of the wire rod contact block；The wire rod pressure head is equipped with
The convex pressure head being adapted to the trench structure of the wire rod contact block, the convex pressure head are used for the slot in the wire rod contact block
When being put into wire rod to be tested in type structure, the wire rod to be tested is compressed；Wherein, the wire rod contact block and the conduction column
For conductor, the contact block fixing piece and the wire rod pressure head are insulator.
Still optionally further, the conduction column is fixed by the slot bottom of threaded hole and bolt and the wire rod contact block and is connected
It connects.
Still optionally further, the contact block fixing piece is fixed by positioning pin and pin hole with the wire rod contact block and is connected
It connects.
Still optionally further, the wire rod contact block is multiple, and is equipped between the cell wall of two neighboring wire rod contact block
Insulation spacer.
Still optionally further, the wire rod pressure head includes：Metal base plate and the layer of silica gel being sleeved on outside the metal base plate,
The convex pressure head being adapted to the wire rod contact block is convexed to form in the layer of silica gel.
Still optionally further, the equipment further includes：Motion；The wire rod pressure head is connect with the motion,
And it positioned at the top of the wire rod contact block, can be contacted close to or far from the wire rod under the driving of the motion
Block.
Still optionally further, the motion includes：Movement fixed plate, pressure head connecting plate and the movement of L-type structure
Slide unit；The top of the pressure head connecting plate is connect with the sliding part of the movement slide unit, and lower section is fixed with the wire rod pressure head to be connected
It connects；The riser of the movement fixed plate is connect with the fixed part of the movement slide unit, and the end face of bottom plate is fixed with the contact block
Part connects.
Still optionally further, the movement slide unit is Pneumatic slid platform, hydraulic pressure moving platform or NC mechanical slide unit.
Still optionally further, the equipment further includes supporting table；The bottom plate of the movement fixed plate is installed on the support
On platform.
Still optionally further, the supporting table includes：It equipment bay, the riser on the equipment bay and is set to
Support plate on the riser；The support plate is equipped with the movement fixed plate, and corresponding with the conduction column on the support plate
Opening is equipped at position.
In test equipment provided by the invention, the wire rod contact block of groove profile is equipped in contact block fixing piece, conduction column passes through
The through-hole of contact block fixing piece bottom is connect with wire rod contact block；When being put into wire rod to be tested in the trench structure of wire rod contact block
When, convex pressure head on crimping material pressure head can the tight wire rod to be tested, and then ensure that wire rod to be tested can be contacted with wire rod
The slot bottom and/or cell wall of block contact, and overcome the defect of poor contact between wire rod and test equipment, improve wire rod to be tested
On-state rate and wire test result accuracy rate.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the dimensional structure diagram for the test equipment that one embodiment of the invention provides；
Fig. 2 is the dimensional structure diagram for the test equipment that another embodiment of the present invention provides；
Fig. 3 is the front view for the test equipment that Fig. 2 is provided；
Fig. 4 is structural schematic diagram of the test equipment of one embodiment of the invention offer in test.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, is not intended to be limiting
The present invention.In the embodiment of the present invention and "an" of singulative used in the attached claims, " described " and "the"
It is also intended to including most forms, unless context clearly shows that other meanings, " a variety of " generally comprise at least two, but not
It excludes to include at least one situation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Including so that commodity or system including a series of elements include not only those elements, but also include not clear
The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that including the element commodity or system in also
There are other identical elements.
It should be noted that in specification and appended book, it should be understood that when layer, region or element are known as
When "above" or "below" another layer, another region or another element, can be " directly " or " indirectly " another layer,
Region or element up or down, or there may also be one or more middle layers.
Fig. 1 is the structural schematic diagram for the wire test equipment that one embodiment of the invention provides, as shown in Figure 1, the equipment packet
It includes：Conduction column 10, contact block fixing piece 20 and wire rod pressure head 30.
Wherein, contact block fixing piece 20 is equipped with groove, and bottom portion of groove offers through-hole, trench structure is equipped in groove
Wire rod contact block 201, conduction column 10 are fixedly connected across through-hole with the slot bottom of wire rod contact block 201；Wire rod pressure head 30 is equipped with
The convex pressure head 301 being adapted to the trench structure of wire rod contact block 201, convex pressure head 301 are used for the slot in wire rod contact block 201
When being put into wire rod to be tested in type structure, wire rod to be tested is compressed；Wherein, wire rod contact block 201 and conduction column 10 are conductor,
Contact block fixing piece 20 and wire rod pressure head 30 are insulator.
In said structure, contact block fixing piece 20 is for fixing wire rod contact block 201, the groove of contact block fixing piece 20
It is interior to be equipped with one or more wire rod contact blocks 201.The quantity Matching of the quantity and wire rod contact block 201 of conduction column 10, is used for
Wire test instrument outside connection.When wire rod to be tested is put into wire rod contact block 201, conduction column 10 passes through wire rod contact block
201 connect with wire rod to be tested, and then have connected wire test instrument and wire rod to be tested.The structure of wire rod contact block 201 is
Groove profile, convex pressure head 301 are adapted to the trench structure of wire rod contact block 201, when wire rod to be tested be put into wire rod contact block 201 it
Afterwards, the pressing of convex pressure head 301 effect under, wire rod to be tested can be contacted with the slot bottom of wire rod contact block 201, or simultaneously with
The slot bottom and cell wall of wire rod contact block 201 contact.Based on this, poor contact between wire rod and test equipment to be tested is overcome
Defect improves the on-state rate of wire rod to be tested and the accuracy rate of wire test result.
In the above-described embodiments, optionally, wire rod contact block 201 and conduction column 10 can be by metal materials, such as lead
Electrical good brass H62 is process.In practice, the intermetallic composite coating of other materials can also be used to obtain wire rod contact block
201 and conduction column 10, the present embodiment is not limited.
Optionally, contact block fixing piece 20 can be used plastic material and be process.In practice, PEEK material processing can be selected
Obtain contact block fixing piece 20.There is intensity height using the contact block fixing piece 20 that the material is processed, and and can
Carrying is compared with heavy load, and the wire rod to be tested be conducive into wire rod contact block 201 applies larger pressure so that wire rod to be tested
It is released completely with wire rod contact block 201, and presses non-loosening.
Optionally, in said structure, conduction column 10 can pass through threaded hole and the slot bottom of bolt and wire rod contact block 201
It is fixedly connected.Wherein, threaded hole can be opened in the slot bottom of wire rod contact block 201, and bolt is securable to the top of conduction column 10；Or
Person, bolt are securable to the top of conduction column 10, and threaded hole is securable to the slot bottom of wire rod contact block 201.The present embodiment is not
Limitation uses above-mentioned any embodiment.
Optionally, on the basis of above structure, contact block fixing piece 20 can also pass through positioning pin and pin hole and wire rod
Contact block 201 is fixedly connected.Wherein, pin hole can be opened in the slot bottom of wire rod contact block 201, and positioning pin is securable to conduction column 10
Top；Alternatively, positioning pin is securable to the top of conduction column 10, pin hole is securable to the slot bottom of wire rod contact block 201.This reality
Example is applied to be not intended to limit using above-mentioned any embodiment.By positioning pin and pin hole, contact block fixing piece 20 can be to wire rod
Contact block 201 is further reinforced, and is avoided wire rod contact block 201 and is shaken in contact block fixing piece 20, is conducive to
Promote the stability of wire rod test process.
Optionally, in the wire test equipment provided in the present embodiment, wire rod contact block 201 can be one or more.
When wire rod contact block 201 is multiple, as shown in FIG. 2 and 3, can be set between the cell wall of two neighboring wire rod contact block 201
Insulation spacer 202.Insulation spacer 202 can be that plastic spacer can also be silica gel pad, its role is to：Prevent adjacent two
A wire rod contact block 201 contacts with each other and then the process of wire test is caused short trouble occur.
It should be appreciated that in addition to insulation spacer 202 is arranged, other insulation modes, which also can be used, ensures that adjacent wire rod connects
Without contacting with each other between contact block 201, for example, retaining air-gap between two neighboring wire rod contact block 201, or connect in wire rod
The outer sheath insulating layer etc. of 201 cell wall of contact block, does not repeat herein.
Optionally, when wire rod contact block 201 is multiple, quantity can be configured according to actual demand.Preferably, one
4 wire rod contact blocks 201 can be equipped in a contact block fixing piece 20, that is to say, that 4 wire rods to be tested can be measured simultaneously, imitated
Rate is higher.According to actual demand, the size of contact block fixing piece 20 can be extended to accommodate more wire rod contact
Block 201, and then increase the quantity for the wire rod that can be tested simultaneously, the testing efficiency of wire rod is further promoted, is not repeated herein.
Optionally, in said structure, wire rod pressure head 30 may include：Metal base plate and the silica gel being sleeved on outside metal base plate
Layer, convex to form the convex pressure head 301 being adapted to wire rod contact block 201 in layer of silica gel.Wherein, the size of convex pressure head 301
It is slightly less than the trench structure size of wire rod contact block 201, to be put into wire rod to be tested in the trench structure of wire rod contact block 201
When, convex pressure head 301 is inserted into wire rod contact block 201 to compress wire rod to be tested, promotes the on-state rate of test wire rod.
Optionally, in addition to the structure that above-described embodiment is recorded, wire test equipment provided by the invention further includes movement
Mechanism 40.As shown in FIG. 2 and 3, wire rod pressure head 30 can be connect with motion 40, and positioned at the upper of wire rod contact block 201
Side.Under this configuration, wire rod pressure head 30 can be under the driving of motion 40 close to or far from wire rod contact block.
Optionally, as shown in Fig. 3 and Fig. 3, motion 40 may include：The movement fixed plate 401 of L-type structure, pressure head
Connecting plate 402 and movement slide unit 403.Wherein, the top of pressure head connecting plate 402 is connect with the sliding part of movement slide unit 403, under
Side is fixedly connected with wire rod pressure head 30, and then pressure head connecting plate 402 can be when the sliding part for moving slide unit 403 be slided, band
On moving-wire material pressure head 30 or move downward.
It includes riser 4011 and bottom plate 4012 to move fixed plate 401.Wherein, riser 4011 is consolidated with movement slide unit 403
Determine portion's connection, slide unit 403 is moved for well fixed；The end face of bottom plate 4012 is connect with contact block fixing piece 20, for fixing
Contact block fixing piece 20, to ensure that there is stable relative position between contact block fixing piece 20 and wire rod pressure head 30.
Optionally, movement slide unit 403 can be Pneumatic slid platform, hydraulic pressure moving platform or NC mechanical slide unit.For example, when movement is slided
When platform 403 is Pneumatic slid platform, the fixed part of movement slide unit 403 may include that cylinder, pedestal and line slide rail etc., sliding part can wrap
Include the sliding part on line slide rail.By using the movement slide unit with line slide rail, about 301 convex pressure head fortune can be promoted
With the stable direction of motion when dynamic, and when convex pressure head 301 can be kept to be moved to wire rod contact block 201 to press wire rod
With higher positioning accuracy, be conducive to the efficiency and accuracy rate that promote wire rod detection.
Optionally, in addition to the structure that above-described embodiment is recorded, as shown in FIG. 2 and 3, wire rod provided by the invention is surveyed
It further includes supporting table 50 to try equipment, and the bottom plate 4012 of movement fixed plate 401 is installed in supporting table 50.Optionally, such as Fig. 2 and
Shown in Fig. 3, supporting table 50 includes：Equipment bay 501, the riser 502 on equipment bay 501 and on the riser 502
Support plate 503；Support plate 503 is equipped with movement fixed plate 4012, and is equipped with and opens at position corresponding with conduction column 10 on support plate 503
Mouthful.
Wherein, equipment bay 501 is for carrying entire test equipment, and for by test equipment be placed on test platform or
On person's desktop.Riser 502 is for fixing motion 40, contact block fixing piece 20 and wire rod pressure head 30.May be used also on riser 502
Equipped at least one hole, such as threaded hole, pin hole, stepped hole or through-hole etc. for external other equipment, in order to test
The connection of equipment and other equipment.Wherein, support plate 503 is for carrying motion 40, contact block fixing piece 20 and wire rod pressure
First 30.Support plate 503 can be groove profile, and conduction column 10 is located in slot, is not contacted with support plate 503.
It should be noted that this for being equipped with 4 wire rod contact blocks 201 in contact block fixing piece 20 in Fig. 1-Fig. 3
The structure of invention is illustrated, and in practice, the quantity for the wire rod contact block 201 being equipped in contact block fixing piece 20 can be 5
It is a, 6 it is even more, do not repeat herein.
In such a configuration, as shown in FIG. 2 and 3, be put into before wire rod to be tested, wire rod contact block 201 and
In the open state between wire rod pressure head 30, there are larger gaps.When placing wire rod to be tested, more (such as 4) wire rods
Can respectively along enter wire rod contact block 201 in.After the completion of wire rod to be tested is placed, motion 40 can be with dynamic head connecting plate 402
With the movement (to close to the direction of wire rod contact block 201) downwards of wire rod pressure head 30, keep wire rod to be tested and wire rod contact block 201 complete
Full connected, and non-loosening is pressed, as shown in Figure 4；When wire rod is tested in waiting, motion 40 can be with dynamic head connecting plate 402
It is moved upwards (Xiang the direction far from wire rod contact block 201) with wire rod pressure head 30, in order to take out wire rod to be tested.
The apparatus embodiments described above are merely exemplary, wherein the unit illustrated as separating component can
It is physically separated with being or may not be, the component shown as unit may or may not be physics list
Member, you can be located at a place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of module achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be expressed in the form of software products in other words, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of wire test equipment, which is characterized in that including：
Conduction column, contact block fixing piece and wire rod pressure head；
The contact block fixing piece is equipped with groove, and the bottom portion of groove offers through-hole, trench structure is equipped in the groove
Wire rod contact block, the conduction column is fixedly connected across the through-hole with the slot bottom of the wire rod contact block；
The wire rod pressure head is equipped with the convex pressure head being adapted to the trench structure of the wire rod contact block, and the convex pressure head is used
When being put into wire rod to be tested in the trench structure in the wire rod contact block, the wire rod to be tested is compressed；
Wherein, the wire rod contact block and the conduction column are conductor, the contact block fixing piece and the wire rod pressure head
For insulator.
2. equipment according to claim 1, which is characterized in that the conduction column passes through threaded hole and bolt and the line
The slot bottom of material contact block is fixedly connected.
3. equipment according to claim 1, which is characterized in that the contact block fixing piece passes through with the wire rod contact block
Positioning pin and pin hole are fixedly connected.
4. equipment according to claim 1, which is characterized in that the wire rod contact block is multiple, and two neighboring wire rod
Insulation spacer is equipped between the cell wall of contact block.
5. equipment according to claim 1, which is characterized in that the wire rod pressure head includes：Metal base plate and it is sleeved on institute
The layer of silica gel outside metal base plate is stated, the convex pressure head being adapted to the wire rod contact block is convexed to form in the layer of silica gel.
6. equipment according to claim 1, which is characterized in that further include：Motion；
The wire rod pressure head is connect with the motion, and positioned at the top of the wire rod contact block, can be in the fitness machine
Close to or far from the wire rod contact block under the driving of structure.
7. equipment according to claim 6, which is characterized in that the motion includes：The movement of L-type structure is fixed
Plate, pressure head connecting plate and movement slide unit；
The top of the pressure head connecting plate is connect with the sliding part of the movement slide unit, and lower section is fixed with the wire rod pressure head to be connected
It connects；
The riser of the movement fixed plate is connect with the fixed part of the movement slide unit, and the end face of bottom plate is fixed with the contact block
Part connects.
8. equipment according to claim 7, which is characterized in that the movement slide unit is Pneumatic slid platform, hydraulic pressure moving platform or number
Control mechanical skid plateform.
9. equipment according to claim 7 or 8, which is characterized in that the equipment further includes supporting table；The movement is fixed
The bottom plate of plate is installed in the supporting table.
10. equipment according to claim 9, which is characterized in that the supporting table includes：
Equipment bay, the riser on the equipment bay and the support plate on the riser；
The support plate is equipped with the movement fixed plate, and is equipped with and opens at position corresponding with the conduction column on the support plate
Mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664795.4A CN108767568A (en) | 2018-06-25 | 2018-06-25 | A kind of wire test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664795.4A CN108767568A (en) | 2018-06-25 | 2018-06-25 | A kind of wire test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108767568A true CN108767568A (en) | 2018-11-06 |
Family
ID=63977419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810664795.4A Pending CN108767568A (en) | 2018-06-25 | 2018-06-25 | A kind of wire test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108767568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867669A (en) * | 2019-12-19 | 2020-03-06 | 国家电网有限公司 | Grounding nail |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167638A (en) * | 2017-07-12 | 2017-09-15 | 深圳市鹏元晟实业有限公司 | A kind of measurement jig |
| CN206533111U (en) * | 2017-01-13 | 2017-09-29 | 张怀华 | A kind of Physical Experiment anti-dropout connector lug |
-
2018
- 2018-06-25 CN CN201810664795.4A patent/CN108767568A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206533111U (en) * | 2017-01-13 | 2017-09-29 | 张怀华 | A kind of Physical Experiment anti-dropout connector lug |
| CN107167638A (en) * | 2017-07-12 | 2017-09-15 | 深圳市鹏元晟实业有限公司 | A kind of measurement jig |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867669A (en) * | 2019-12-19 | 2020-03-06 | 国家电网有限公司 | Grounding nail |
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Application publication date: 20181106 |