CN110459886A - A kind of ground line fixture - Google Patents
A kind of ground line fixture Download PDFInfo
- Publication number
- CN110459886A CN110459886A CN201910806077.0A CN201910806077A CN110459886A CN 110459886 A CN110459886 A CN 110459886A CN 201910806077 A CN201910806077 A CN 201910806077A CN 110459886 A CN110459886 A CN 110459886A
- Authority
- CN
- China
- Prior art keywords
- shaft
- ground line
- ratchet
- internal spline
- splined shaft
- 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
- 238000000034 method Methods 0.000 claims description 31
- 230000004888 barrier function Effects 0.000 claims description 28
- 208000004141 microcephaly Diseases 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/22—End pieces terminating in a spring clip
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses such a ground line fixtures, to solve the problems, such as to have assembly not easy to be processed existing for ground line fixture, the present invention takes the shaft (9) by splined shaft (3) setting in cavity (6), splined shaft (3) upper end, which passes through, is arranged reeded clamping piece (2) rotation connection on cavity (6) and clamping face, internal spline is provided on cavity (6) inner wall of fixed part (1), internal spline lower end is equipped with middle ratchet (15), the upper part of shaft (9) is installed in splined shaft (3), it is engaged convenient for the external splines (4) in the protrusion (8) and splined shaft (3) on part under shaft (9) with internal spline, and make upper ratchet (7) tooth tip under shaft (9) on part and lower ratchet (5) peak contact of splined shaft (3) lower end, part is also logical under shaft (9) Elastic component (11) is crossed to connect with the connection component (12) that can be connect with insulating bar.
Description
Technical field
The present invention relates to a kind of fixtures of electric system, more particularly, to one kind by fixed part, clamping piece, elastic component
With the ground line fixture of shaft composition.
Background technique
Chinese patent (application number 2017107291177) discloses such a flat mouth type ground line fixture and its user
Method is structurally characterized in that: it includes fixed part, it is equipped with a cavity, and cavity inner wall is equipped with card slot, upper ratchet and lower ratchet,
The opening of card slot is connected with lower ratchet；Clamping piece, it can relatively fixed part sliding；Elastic component, its both ends are separately connected folder
Gripping member and fixed part；Shaft, it and clamping piece are rotatablely connected and protrude into cavity, and shaft periphery is equipped with upper process and lower prominent
Rise, push clamping piece drive shaft move down so that upper process matched with upper ratchet, lower process matched with lower ratchet into
And so that shaft is rotated up to lower process and be caught in or leave card slot.Therefore, because card slot, upper ratchet and lower ratchet are all located at cavity
On inner wall, cause it is not easy to be processed, and due to by elastic component be arranged between clamping piece and fixed part, so that elastic component is placed in air
In, vulnerable to corrosion, reduce the service life；In addition, the structure is only applicable to flat ground line, when ground line is cylindric
When, need to change the chuck body of clamping piece and fixed part.
Summary of the invention
The object of the present invention is to provide a kind of easy processings, can extend elastic component service life, can be used for flat ground line
With the ground line fixture of cylindric ground line clamping.
In order to achieve the above objectives, a kind of ground line fixture of the present invention, by fixed part, clamping piece, elastic component and shaft group
At equipped with a cavity on fixed part, shaft is arranged in the cavity, and clamping piece is slidably connected with fixed part, the shaft
In the cavity by splined shaft setting, splined shaft upper end, which passes through, is arranged reeded clamping piece rotation company on cavity and clamping face
It connects, internal spline is provided on the cavity inner wall of fixed part, internal spline lower end is equipped with middle ratchet, is equipped with and turns in splined shaft
The upper part of axis, is engaged convenient for the external splines in the protrusion and splined shaft on part under shaft with internal spline, and makes shaft lower part
The lower ratchet peak contact of upper ratchet tooth tip and splined shaft lower end on point, under shaft part also by elastic component with can be with insulation
The connection component connection of bar connection.
Internal spline on the cavity inner wall is made of multiple upper process and multiple barrier layers, is existed at interval of two upper process
Upper process bottom is provided with a barrier layer and barrier layer both sides is made to be separately connected adjacent two upper process, and multiple barrier layers are in circle
Circularly symmetric setting, multiple barrier layer surfaces are formed by diameter less than internal spline outer diameter and are greater than internal spline internal diameter, and being convenient for will
Shaft obstructs outside internal spline.
One end of the multiple upper process towards shafts is arranged to ratchet in inclined-plane and composition.
The one end for stating barrier layer towards shaft is arranged to inclined-plane, inclined-plane is parallel with the inclined-plane on upper process.
The splined shaft is arranged to tubulose, the card slot for being capable of clamping part rotation connection is provided in splined shaft upper end, in flower
Key axis lower end periphery is equipped with external splines, so that external splines outer diameter is less than multiple barrier layers and is formed by diameter, in splined shaft lower end surface
On be provided with lower ratchet.
Be arranged on the clamping face in fixed part folder corresponding with clamping piece spy portion it is fluted, it is cylindric convenient for clamping
Object.
The shaft is arranged to axial cross section in T-shaped, the microcephaly of part in shaft is placed in splined shaft, guides shaft
It moves up and down, is evenly equipped with multiple protrusions on the major part of part under shaft, convenient for cooperating with internal spline on cavity inner wall, make multiple
Protrusion is formed by outer diameter less than internal spline outer diameter and is formed by diameter greater than multiple barrier layer surfaces, by multiple protrusion directions
One end face of splined shaft is arranged to inclined-plane and constitutes upper ratchet, is convenient for engaging with lower Ratchet slide, shaft lower end surface is arranged to
Curved.
Inclined-plane in the protrusion is parallel to the inclined-plane on upper process.
The shaft lower end surface is connect by gasket with elastic component one end, and the elastic component other end passes through gasket and connection component
Connection.
The connection component includes upper connector and lower connector, and upper connector upper end in a tubular form is sleeved on fixed part
On, and connect by pin shaft with fixed part, upper connector lower end is connect by screw thread with lower connector upper end, and lower connector is made
Upper end forms a sleeveless jacket in upper connector, convenient for placing gasket, external screw thread is equipped in lower connector upper end, in lower connector
Inner wall is held to be equipped with internal screw thread, convenient for connecting with insulating bar.
After this structure, interior flower need to only be processed on the cavity inner wall of fixed part by having the following beneficial effects:
Key, and one end of internal spline multiple upper process towards shaft is arranged to inclined-plane, thus ratchet in constituting, remaining on ratchet with
Lower ratchet is separately positioned on splined shaft and shaft, easy to process, in addition, in the clamping face of clamping piece and fixed part folder spy portion
On upper setting is fluted, had not only been capable of clamping flat mouth type ground line and had been capable of clamping cylindrical type ground line, no replacement is required clamping piece, simultaneously and also
Elastic component is arranged in the cavity and connection component of fixed part.To reaching easy processing, can extend elastic component service life,
It can be used for the purpose of flat ground line and cylindric ground line clamping.
Detailed description of the invention
The present invention is described in further detail with reference to the accompanying drawings and examples.
Attached drawing 1 is a kind of main cross-sectional schematic diagram for being grounded fixture of the present invention.
Attached drawing 2 is a kind of main cross-sectional schematic diagram for being grounded fixture fixed part of the present invention.
Attached drawing 3 is the elevational schematic view of attached drawing 2.
Attached drawing 4 is a kind of main cross-sectional schematic diagram for being grounded fixture splined shaft of the present invention.
Attached drawing 5 is a kind of schematic front view for being grounded fixture shaft of the present invention.
In figure: ratchet on lower 6. cavity 7. of ratchet of 1. fixed part, 2. clamping piece, 3. splined shaft, 4. external splines 5.
8. ratchet in the lower connector 15. of 12. connection component of protrusion 9. shaft, 10. gasket, 11. elastic component, 13. upper connector 14.
16. 17. upper process of barrier layer.
Specific embodiment
A kind of ground line fixture of the present invention shown in attached drawing 1, attached drawing 2 by fixed part 1, clamping piece 2, elastic component 11 and turns
Axis 9 forms, and a cavity 6 is equipped on fixed part 1, and shaft 9 is arranged in cavity 6, and clamping piece 2 and the sliding of fixed part 1 connect
It connects, the shaft 9 is arranged in cavity 6 by splined shaft 3, and 3 upper end of splined shaft is arranged fluted on cavity 6 and clamping face
Clamping piece 2 be rotatablely connected, be provided with internal spline on 6 inner wall of cavity of fixed part 1, internal spline lower end is equipped with middle ratchet
15, the upper part of shaft 9 is installed in splined shaft 3, convenient for the external splines in the protrusion 8 and splined shaft 3 on the lower part of shaft 9
4 engage with internal spline, and make 7 tooth tip of upper ratchet under shaft 9 on part and 5 peak contact of lower ratchet of 3 lower end of splined shaft, turn
The lower part of axis 9 is also connected by elastic component 11 with the connection component 12 that can be connect with insulating bar.
Internal spline on 6 inner wall of cavity shown in attached drawing 2, attached drawing 3 is by multiple upper process 17 and 16 groups of multiple barrier layers
At being provided with a barrier layer 16 in 17 bottom of upper process at interval of two upper process 17 and be separately connected 16 both sides of barrier layer
Adjacent two upper process 17, multiple barrier layers 16 are annular in shape to be symmetrical arranged, and it is small that multiple 16 surfaces of barrier layer are formed by diameter
In internal spline outer diameter and it is greater than internal spline internal diameter, convenient for obstructing shaft 9 outside internal spline, it is preferred that on 6 inner wall of cavity
Internal spline be made of eight upper process 17 and eight barrier layers 16；One end of multiple upper process 17 towards the shafts 9 is set
Ratchet 15 in being set to inclined-plane and constituting；The one end for stating barrier layer 16 towards shaft 9 is arranged to inclined-plane, inclined-plane and upper process 17
On inclined-plane it is parallel.
The splined shaft 3 is arranged to tubulose shown in attached drawing 4, is provided in 3 upper end of splined shaft and is capable of clamping the rotation connection of part 2
Card slot, 3 lower end periphery of splined shaft be equipped with external splines 4, make 4 outer diameter of external splines be less than multiple barrier layers 16 be formed by directly
Diameter is provided with lower ratchet 5 on 3 lower end surface of splined shaft.
Be arranged shown in attached drawing 1 on the clamping face that the fixed part 1 corresponding with clamping piece 2 presss from both sides special portion it is fluted, just
In clamping cylindrical object.
The shaft 9 is arranged to axial cross section in T-shaped shown in attached drawing 5, the microcephaly of part in shaft 9 is made to be placed in splined shaft
In 3, guidance shaft 9 move up and down, multiple protrusions 8 are evenly equipped on the major part of part under shaft 9, be convenient for on 6 inner wall of cavity
Internal spline cooperation makes multiple protrusions 8 be formed by outer diameter less than internal spline outer diameter and is formed greater than multiple 16 surfaces of barrier layer
Diameter, an end face of multiple protrusions 8 towards splined shaft 3 is arranged to inclined-plane and constitutes upper ratchet 7, is convenient for and lower ratchet 5 is sliding
Dynamic engagement, is arranged to curved for 9 lower end surface of shaft, it is preferred that uniformly distributed on the major part of part under shaft 9 there are four protrusions 8；
Inclined-plane in the protrusion 8 is parallel to the inclined-plane on upper process 17.
9 lower end surface of shaft shown in attached drawing 1 is connect by gasket 10 with 11 one end of elastic component, and 11 other end of elastic component is logical
Gasket 10 is crossed to connect with connection component 12.
The connection component 12 shown in attached drawing 1 includes upper connector 13 and lower connector 14, upper connector 13 in a tubular form
Upper end is sleeved on fixed part 1, and is connect by pin shaft with fixed part 1, and 13 lower end of upper connector passes through screw thread and lower company
The connection of 14 upper end of fitting, makes lower 14 upper end of connector form a sleeveless jacket in upper connector 13, convenient for placing gasket 10, under
14 upper end of connector is equipped with external screw thread, and internal screw thread is equipped on lower 14 lower end inner wall of connector, convenient for connecting with insulating bar.
In use, pushing clamping piece 2, moving down clamping piece 2 and driving splined shaft 3 and with the shaft in internal spline
9 move down, meanwhile, compression elastic piece 11, when the protrusion 8 in shaft 9 is detached from internal spline, due to lower ratchet 5, upper ratchet 7
On ramp effect and elastic component 11 elastic force effect, by shaft 9 rotate to predetermined angular, enter the upper ratchet 7 in shaft 9
Barrier layer 16 on to internal spline prevents the protrusion 8 in shaft 9 from entering internal spline, at this moment, under the effect of gravity, at splined shaft 3
In low level, at this point, conducting position to be grounded is placed between 1 clamping part of fixed part and clamping piece 2, and continues to jack up and fix
Part 1, so that clamping piece 2 moves down and drive splined shaft 3 and shaft 9 to move down, due on lower ratchet 5, upper ratchet 7
The rotation of shaft 9 to predetermined angular is detached from internal spline to the protrusion 8 in shaft 9 by the effect of the elastic force of ramp effect and elastic component 11
On barrier layer 16 when, due to ramp effect and elastic component 11 on lower ratchet 5, upper ratchet 7 elastic force act on, shaft 9 is revolved
Predetermined angular is gone to, the protrusion 8 in shaft 9 is made to enter to internal spline, by shaft 9, splined shaft 3 and is clamped by elastic component 11 at this time
Part 2 jacks up, to achieve the purpose that clamp conducting position, repeatedly.
Claims (10)
1. a kind of ground line fixture, is made of fixed part, clamping piece, elastic component and shaft, a chamber is equipped on fixed part
Body, shaft are arranged in the cavity, and clamping piece is slidably connected with fixed part, it is characterised in that: the shaft (9) passes through splined shaft
(3) in cavity (6), splined shaft (3) upper end, which passes through, is arranged reeded clamping piece (2) turn on cavity (6) and clamping face for setting
Dynamic connection is provided with internal spline on cavity (6) inner wall of fixed part (1), and internal spline lower end is equipped with middle ratchet (15), in flower
The upper part of shaft (9) is installed, convenient for outer in the protrusion (8) and splined shaft (3) on part under shaft (9) in key axis (3)
Spline (4) is engaged with internal spline, and makes upper ratchet (7) tooth tip under shaft (9) on part and the lower ratchet of splined shaft (3) lower end
(5) peak contact, part also passes through elastic component (11) and connection component (12) connection that can connect with insulating bar under shaft (9).
2. a kind of ground line fixture according to claim 1, it is characterised in that: the internal spline on cavity (6) inner wall
It is made of multiple upper process (17) and multiple barrier layers (16), is arranged at interval of two upper process (17) in upper process (17) bottom
There is a barrier layer (16) and barrier layer (16) both sides is made to be separately connected adjacent two upper process (17), multiple barrier layers (16) are in
Annular shape is symmetrical arranged, and multiple barrier layer (16) surfaces are formed by diameter less than internal spline outer diameter and are greater than internal spline internal diameter,
Convenient for obstructing shaft (9) outside internal spline.
3. a kind of ground line fixture according to claim 2, it is characterised in that: turn multiple upper process (17) directions
One end of axis (9) is arranged to ratchet (15) in inclined-plane and composition.
4. a kind of ground line fixture according to claim 2, it is characterised in that: barrier layer (16) will be stated towards shaft (9)
One end be arranged to inclined-plane, inclined-plane is parallel with the inclined-plane on upper process (17).
5. a kind of ground line fixture according to claim 1, it is characterised in that: the splined shaft (3) is arranged to tubulose,
It is provided with the card slot for being capable of clamping part (2) rotation connection in splined shaft (3) upper end, is equipped with external splines in splined shaft (3) lower end periphery
(4), so that external splines (4) outer diameter is less than multiple barrier layers (16) and be formed by diameter, under being provided on splined shaft (3) lower end surface
Ratchet (5).
6. a kind of ground line fixture according to claim 1, it is characterised in that: corresponding with clamping piece (2) described solid
Be arranged on the clamping face in fixed part (1) folder spy portion it is fluted, convenient for clamping cylindrical object.
7. a kind of ground line fixture according to claim 1, it is characterised in that: the shaft (9) is arranged to axial cut
Face is in T-shaped, is placed in the microcephaly of part on shaft (9) in splined shaft (3), and guidance shaft (9) moves up and down, under shaft (9)
It is evenly equipped with multiple protrusions (8) on partial major part, convenient for cooperating with internal spline on cavity (6) inner wall, makes multiple protrusions (8) institute shape
At outer diameter be less than internal spline outer diameter and be greater than multiple barrier layers (16) surface be formed by diameter, by multiple protrusions (8) direction
One end face of splined shaft (3) is arranged to inclined-plane and constitutes upper ratchet (7), convenient for slidably engaging with lower ratchet (5), by shaft (9)
Lower end surface is arranged to curved.
8. a kind of ground line fixture according to claim 7, it is characterised in that: the inclined-plane on the protrusion (8) is parallel to
Inclined-plane on upper process (17).
9. a kind of ground line fixture according to claim 1, it is characterised in that: shaft (9) lower end surface passes through gasket
(10) it is connect with elastic component (11) one end, elastic component (11) other end is connect by gasket (10) with connection component (12).
10. a kind of ground line fixture according to claim 1, it is characterised in that: the connection component (12) includes upper company
Fitting (13) and lower connector (14), upper connector (13) upper end in a tubular form is sleeved on fixed part (1), and passes through pin shaft
It is connect with fixed part (1), upper connector (13) lower end is connect by screw thread with lower connector (14) upper end, and lower connector is made
(14) upper end forms a sleeveless jacket in upper connector (13), convenient for placing gasket (10), is equipped in lower connector (14) upper end
External screw thread is equipped with internal screw thread on lower connector (14) lower end inner wall, convenient for connecting with insulating bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806077.0A CN110459886A (en) | 2019-08-26 | 2019-08-26 | A kind of ground line fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806077.0A CN110459886A (en) | 2019-08-26 | 2019-08-26 | A kind of ground line fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110459886A true CN110459886A (en) | 2019-11-15 |
Family
ID=68489786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910806077.0A Pending CN110459886A (en) | 2019-08-26 | 2019-08-26 | A kind of ground line fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110459886A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588725A (en) * | 2004-09-15 | 2005-03-02 | 无锡市苏源锡能新技术开发有限公司 | Cable earthing tool of cable branch box |
| CN104901207A (en) * | 2015-06-15 | 2015-09-09 | 国网山东章丘市供电公司 | Diverting clamp for diverting wire clamp pressing plate |
| CN105226412A (en) * | 2015-10-23 | 2016-01-06 | 国网山东郓城县供电公司 | Multifunctional grounding wire insulating bar |
| EP3136519A1 (en) * | 2015-08-26 | 2017-03-01 | Hager Electro GmbH & Co. KG | Connection device for connecting a conductor to a busbar |
| CN106785515A (en) * | 2016-12-15 | 2017-05-31 | 沈阳理工大学 | Suitable for the earthing wire clip of mechanical manual task |
| CN107565230A (en) * | 2017-08-23 | 2018-01-09 | 国网福建省电力有限公司 | A kind of flat mouth type ground wire fixture and its application method |
| CN207098093U (en) * | 2017-09-13 | 2018-03-13 | 国网河南省电力公司汝阳县供电公司 | Ground wire with rotary self-locking device |
| CN109167480A (en) * | 2018-11-02 | 2019-01-08 | 浙江斯耐特动力股份有限公司 | The electric corrosion prevention earthing or grounding means of variable frequency motor bearing |
| CN208820073U (en) * | 2018-11-02 | 2019-05-03 | 国网河南省电力公司汝阳县供电公司 | A kind of rotatable ground line of earthing clamp |
| CN210182617U (en) * | 2019-08-26 | 2020-03-24 | 福建亿瑞电力科技有限公司 | Ground wire clamp |
-
2019
- 2019-08-26 CN CN201910806077.0A patent/CN110459886A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588725A (en) * | 2004-09-15 | 2005-03-02 | 无锡市苏源锡能新技术开发有限公司 | Cable earthing tool of cable branch box |
| CN104901207A (en) * | 2015-06-15 | 2015-09-09 | 国网山东章丘市供电公司 | Diverting clamp for diverting wire clamp pressing plate |
| EP3136519A1 (en) * | 2015-08-26 | 2017-03-01 | Hager Electro GmbH & Co. KG | Connection device for connecting a conductor to a busbar |
| CN105226412A (en) * | 2015-10-23 | 2016-01-06 | 国网山东郓城县供电公司 | Multifunctional grounding wire insulating bar |
| CN106785515A (en) * | 2016-12-15 | 2017-05-31 | 沈阳理工大学 | Suitable for the earthing wire clip of mechanical manual task |
| CN107565230A (en) * | 2017-08-23 | 2018-01-09 | 国网福建省电力有限公司 | A kind of flat mouth type ground wire fixture and its application method |
| CN207098093U (en) * | 2017-09-13 | 2018-03-13 | 国网河南省电力公司汝阳县供电公司 | Ground wire with rotary self-locking device |
| CN109167480A (en) * | 2018-11-02 | 2019-01-08 | 浙江斯耐特动力股份有限公司 | The electric corrosion prevention earthing or grounding means of variable frequency motor bearing |
| CN208820073U (en) * | 2018-11-02 | 2019-05-03 | 国网河南省电力公司汝阳县供电公司 | A kind of rotatable ground line of earthing clamp |
| CN210182617U (en) * | 2019-08-26 | 2020-03-24 | 福建亿瑞电力科技有限公司 | Ground wire clamp |
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