CN217656082U

CN217656082U - Alloy moment clamp type electricity testing grounding wire clamp

Info

Publication number: CN217656082U
Application number: CN202221243079.7U
Authority: CN
Inventors: 杨徽; 曾浪; 黄其平
Original assignee: Chongqing Deepu Electric Co ltd
Current assignee: Chongqing Deepu Electric Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-10-25
Anticipated expiration: 2032-05-23

Abstract

The utility model relates to an electric power system technical field especially relates to alloy moment pincers type electricity test earth clamp. Including upper cover, base, ground connection spare and retaining member, ground connection spare fixed connection is on the base, all be equipped with the through-hole of being convenient for to be connected with the retaining member on upper cover and the base, the retaining member passes the base in order and the upper through-hole of covering, be provided with the wire casing that holds the wire on upper cover and the base relatively, when the locking degree of retaining member changes, the wire casing is used for holding the volume correspondence of wire and changes. This technical scheme is used for solving among the prior art test electric earthing device when using, can not carry out the adaptation to the wire of multiple different specifications, leads to application scope little, the kind is more, the commonality is not enough, the poor problem of interchangeability.

Description

Alloy moment clamp type electricity testing grounding wire clamp

Technical Field

The utility model relates to an electric power system technical field especially relates to alloy moment pincers type electricity test earth clamp.

Background

The alloy torque clamp type electricity testing grounding wire clamp is a non-force bearing type electricity testing grounding device, is mainly applied to distribution line systems of 10KV and below, and plays a role in safe operation of electricity testing and grounding.

The traditional electricity testing grounding device mostly adopts a BYD electricity testing grounding wire clamp, a JDL electricity testing grounding wire clamp or a JBCD insulation puncture electricity testing grounding wire clamp and the like. The products need to be equipped with different types and specifications when the wires with different sectional areas are used, and have the advantages of small application range, more types, insufficient universality and poor interchangeability.

SUMMERY OF THE UTILITY MODEL

To the not enough of the above-mentioned technique, the utility model aims to provide an electric earth clamp is tested to alloy moment pincers type for test among the solution prior art electric earthing device and when using, can not carry out the adaptation to the wire of multiple different specifications, lead to application scope little, the commonality is not enough and interchangeability poor problem.

In order to achieve the purpose, the utility model adopts the following technical scheme:

alloy moment pincers type electricity test earth clamp, including upper cover, base, ground connection spare and retaining member, ground connection spare fixed connection is on the base, all be equipped with the through-hole of being convenient for to be connected with the retaining member on upper cover and the base, the retaining member passes the base in order and the through-hole of covering, be provided with the wire casing that holds the wire on upper cover and the base relatively, when the locking degree of retaining member changes, the wire casing is used for holding the volume correspondence of wire and changes.

The working principle of the technical scheme is as follows:

place the wire in the inside of the wire casing that sets up on upper cover and base when using, then through the locking degree that promotes the retaining member, can compress tightly the wire inside the wire casing of the two, then through connect the earth connection on the ground element can.

Further inject, be equipped with the mounting groove on the base, be equipped with the briquetting in the mounting groove, the briquetting is with ground connection spare fixed connection on the base.

Further prescribe that the ground connection piece is the ground ring, the both sides of ground ring are provided with the insulating layer.

Further inject, on cover and be equipped with the guide block, the one end of guide block is fixed in and covers, the both sides face and the base of guide block slide spacing connection, and its beneficial effect lies in, through setting up the guide block, makes the guide block carry on spacingly to the position of upper cover and base, makes it can not appear when using around retaining member pivoted condition, promotes the result of use of this fastener.

Further limited, the cross section of the guide block is in a shape like a Chinese character 'ji', guide grooves are formed in two side faces of the guide block, guide portions matched with the guide grooves are formed in the base, and the guide portions are located in the guide grooves.

Further limit, the retaining member is a fastening bolt, the head end of the fastening bolt is positioned on the outer side surface of the base, the rod end of the fastening bolt is positioned on the outer side surface of the upper cover, and a torque nut is arranged on the rod end.

Further limited, a disc-shaped spring washer is arranged between the torque nut and the outer surface of the upper cover, and the torque nut and the disc-shaped spring washer are combined to ensure that the fastening torque is constant, effectively overcome stress relaxation caused by expansion caused by heat and contraction caused by cold of a wire in operation, dynamically compensate the reduction of an initial torque value, and maintain stable connection pressure and contact resistance.

The torque nut is further limited, the clamping groove is formed in the outer surface of the base, the head end of the fastening bolt is clamped in the limiting groove and the clamping groove, and the torque nut is guaranteed not to rotate when the torque nut is fastened, only one tool is needed to lock the torque nut, labor intensity is reduced, and operation at high altitude is particularly convenient.

In an implementation mode, a conductive block is further arranged between the upper cover and the base, conductive block arc-shaped grooves facing the upper cover and the base are oppositely arranged on the conductive block, an upper cover arc-shaped groove and a base arc-shaped groove which are arranged facing the conductive block are respectively arranged on the upper cover and the base, the upper cover arc-shaped groove and the conductive block arc-shaped groove which is oppositely arranged form a main wire groove, the base arc-shaped groove and the conductive block arc-shaped groove which is oppositely arranged form a branch wire groove, guide portions are arranged on two sides of one end, facing the guide block, of the conductive block, and a through hole which is slidably sleeved on the locking piece is arranged in the middle of the conductive block.

Further inject, the tip of upper cover arc wall and base arc wall is crooked to the conducting block, and is equipped with at least one breach in its bent part's the outside, be equipped with on the conducting block outside with breach assorted dog, upper cover, conducting block and base all set up to the claw shape, and its useful part lies in, and the claw shape setting can be intercepted the wire, and crisscross setting can avoid the edge to interfere simultaneously, makes the wire diameter interval that the wire casing can the centre gripping bigger.

The technical effect achieved by the technical scheme is as follows:

(1) The volume that holds the wire between the two wire casings on can changing upper cover and the base through the locking degree that changes the retaining member, can lock the direction of different specifications, very big promotion the practicality of this fastener, the setting of conducting block makes the wire casing on it can respectively with the space that forms the centre gripping wire between upper cover and the base, can two sets of wires of centre gripping.

(2) The moment nut and the disc spring washer are combined, so that the constant fastening moment is ensured, the condition that the lead is not compressed is avoided, the stress relaxation caused by expansion caused by heat and contraction caused by cold of the lead in operation is effectively overcome, the reduction of the initial moment value is dynamically compensated, and the stable connection pressure and the stable contact resistance are maintained.

(3) The setting of draw-in groove on the base makes fastening bolt's head end can not take place to rotate, only need an instrument locking torque nut promptly can, reduce intensity of labour, promoted the simple operation nature of this fastener when high altitude construction.

Drawings

FIG. 1 is a perspective view of the present clamp;

FIG. 2 is a perspective view of the upper cover of the cable clamp;

FIG. 3 is a perspective view of the upper cover of the present invention from another perspective;

FIG. 4 is a schematic view of a conductive block of the present clip;

FIG. 5 is a schematic view showing the connection of the upper cover and the guide block;

FIG. 6 is a schematic view of the base of the present cleat;

FIG. 7 is a schematic view of a fastening bolt and a base;

FIG. 8 is a schematic view from another perspective of the fastening bolt and base;

FIG. 9 is a schematic view of a grounding member;

FIG. 10 is a schematic view of a briquette;

FIG. 11 is a perspective view of a clip with a conductive block according to example 2;

FIG. 12 is a schematic side view of a clip with a conductive block of example 2;

fig. 13 is a schematic perspective view of the conductive block in embodiment 2.

Reference numerals

The device comprises an upper cover 1, a base 2, a conductive block 3, a fastening bolt 4, a torque nut 5, a disc-shaped spring washer 6, a guide block 7, a guide groove 8, a stop block 9, a guide part 10, a base arc-shaped groove 11, a notch 12, a clamping groove 13, a mounting groove 14, a pressing block 15, a grounding part 16, an upper cover arc-shaped groove 17 and a conductive block arc-shaped groove 18.

Detailed Description

The following is further detailed by way of specific embodiments:

as shown in fig. 1-10, alloy moment clamp type electricity-testing grounding wire clamp, including upper cover 1, base 2, retaining member and ground connection piece 16, ground connection piece 16 fixed connection is on base 2, is equipped with the through-hole on upper cover 1 and the base 2, and the retaining member passes the through-hole that sets up on base 2 and the through-hole that sets up on upper cover 1 in order, and the relative wire casing that holds the wire that is provided with on upper cover 1 and the base 2, when the locking degree of retaining member changed, was used for holding the volume correspondence change of wire between the wire casing.

Grounding member 16 is the ground loop that the rectangle set up, and ground loop both sides are equipped with the insulating layer, and the setting of insulating layer can be insulated the part of ground loop portion connecting wire, guarantees safety in utilization to and insulation recovery nature has been promoted. Be equipped with mounting groove 14 on the base 2, be equipped with briquetting 15 in the mounting groove 14, briquetting 15 with 16 fixed connection of ground connection on base 2. Specifically, base 2 and briquetting 15 all design have with ground ring assorted regular hexagon groove, and base 2 regular hexagon inslot design has the screw hole, and the design has the counter sink on the briquetting 15, and the design has the regular hexagon post on the ground ring, and the regular hexagon is epaxial porosely, can be fixed with the ground ring with interior hexagonal counter sink screw.

Be equipped with guide block 7 on the upper cover 1, on the one end of guide block 7 was fixed in upper cover 1, be equipped with on the upper cover 1 counter sink and with the guide block 7 between used screw fixed connection, guide block 7's both sides face and the base 2 spacing connection that slides, through setting up guide block 7, make guide block 7 carry on spacingly to the position of upper cover 1 and base 2, make it can not appear when using around retaining member pivoted condition, promote the result of use of this fastener. The guide block 7 is in a shape like a Chinese character 'ji', guide grooves 8 are formed in two side faces of the guide block 7, a guide portion 10 matched with the guide grooves 8 is arranged on the base 2, and the guide portion 10 is located in the guide grooves 8.

The upper cover arc wall 17 and the base arc wall 11 that upper cover 1 and base 2 set up are the arc wall, and the outside part of the two arc wall portion is claw shape design, and relative bending, specifically be, be equipped with at least one breach 12 in the outside of the two bending part, in this particular embodiment, the quantity of breach 12 is two, all be provided with the dogtooth in upper cover arc wall 17 and base arc wall 11, the oxidation layer on the wire can be broken open to the dogtooth, promote the wire and upper cover arc wall 17 and base arc wall 11's contact effect, conductive effect has been promoted promptly. The locking member is a fastening bolt 4, the number of the fastening bolts 4 is 2 in the embodiment, the head end of the fastening bolt 4 is located on the outer side surface of the base 2, the rod end of the fastening bolt 4 is located on the outer side surface of the upper cover 1, and the moment nut 5 is arranged on the rod end, which is beneficial to avoid the interference between the tool and the grounding member 16 when the fastening bolt 4 is screwed. A disc spring washer 6 is arranged between the torque nut 5 and the outer surface of the upper cover 1. In the above, the moment nut 5 and the disc spring washer 6 are designed in a combined manner, so that the fastening moment is constant, the stress relaxation caused by expansion with heat and contraction with cold of the wire in operation is effectively overcome, the decrease of the initial moment value is dynamically compensated, and the stable connection pressure and the stable contact resistance are maintained.

The clamping groove 13 is formed in the outer surface of the base 2, the head end of the fastening bolt 4 is clamped in the limiting groove 13, the head of the fastening bolt 4 cannot rotate when the torque nut 5 is fastened, only one tool is needed to lock the torque nut 5, labor intensity is reduced, and operation at high altitude is particularly convenient. In the specific implementation mode, the alloy torque clamp type electricity-testing grounding wire clamp is made of special aluminum alloy materials with high strength, high conductivity and intermediate electrode potential through a special process, is wide in application range and high in universality, and can be suitable for being connected with copper and aluminum wires with the sectional area of 50-300mm & lt 2 & gt.

Example 2

As shown in fig. 11-13, the difference between the embodiment 2 and the embodiment 1 lies in that a conductive block 3 is disposed between the upper cover 1 and the base 2, wherein a guide slot 8 matched with the guide portion 10 is disposed on the conductive block 3, the guide portion 10 is disposed in the guide slot 8, and a through hole is disposed in the middle of the same end, so that a locking bolt can pass through the through hole, and the conductive block 3 is slidably sleeved on the locking bolt, meanwhile, conductive block arc-shaped slots 18 are disposed on the side surfaces of the upper cover 1 and the base 2 facing the other end of the conductive block 3, a main slot for accommodating a wire is formed between the upper cover arc-shaped slot 17 and the conductive block arc-shaped slot 18, which are disposed opposite to each other, on the upper cover 1 and the conductive block 3, and a branch slot for accommodating a wire is formed between the base arc-shaped slot 11 and the conductive block arc-shaped slot 18, which are disposed opposite to each other, on the base 2 and the conductive block 3, and the branch slot can be changed in position according to actual situations. The conductive blocks 3 are provided to have a benefit in that the conductive blocks 3 can form spaces for holding wires with the upper cover 1 and the base 2, respectively, so that two sets of wires can be held.

Preferably, the edge of the arc-shaped groove 18 of the conductive block is provided with the stop blocks 9 corresponding to the notches 12 in number, and the stop blocks 9 are positioned in the notches 12 of the upper cover 1 and the base 2, so that the conductive block has the advantages that the conductive block can stop wires and avoid the wires from being separated from the wire groove under the action of external force, meanwhile, the staggered arrangement can avoid the edge interference, and the diameter interval of the wires which can be clamped by the wire groove is larger.

The working principle of the wire clamp with the conductive block 3 is that a grounding wire is hung on a grounding ring, then a torque nut 5 is screwed out to the highest position, a main wire groove of the alloy torque clamp type electricity testing grounding wire clamp is hung into a main wire, the position is adjusted and then fixed slightly, a branch wire to be replaced by a jumper wire is inserted into a branch wire groove, and then the torque nut 5 is screwed up in a rotating mode until 5 ends of the torque nut are screwed off and the installation is completed.

It should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that, for the person skilled in the art, without departing from the structure of the invention, several variants and modifications can be made, which should also be regarded as the scope of protection of the invention, which will not affect the effectiveness of the implementation of the invention and the utility of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Alloy moment pincers type electricity test earth clamp, its characterized in that, including upper cover, base, ground connection spare and retaining member, ground connection spare fixed connection is on the base, all be equipped with the through-hole of being convenient for to be connected with the retaining member on upper cover and the base, the retaining member passes the base in order and covers the through-hole, be provided with the wire casing that holds the wire on upper cover and the base relatively, when the locking degree of retaining member changes, the volume correspondence that the wire casing is used for holding the wire changes.

2. The alloy torque clamp-type electricity testing ground clamp according to claim 1, wherein a mounting groove is formed in the base, a pressing block is arranged in the mounting groove, and the pressing block fixedly connects the grounding piece to the base.

3. The alloy torque clamp-type electricity testing ground clamp of claim 1, wherein the grounding piece is a grounding ring, and two sides of the grounding ring are provided with insulating layers.

4. The alloy torque clamp-type electricity testing ground clamp according to claim 1, wherein a guide block is arranged on the upper cover, one end of the guide block is fixed on the upper cover, and two side faces of the guide block are connected with the base in a sliding limiting manner.

5. The alloy torque clamp-type electricity testing ground clamp according to claim 4, wherein the cross section of the guide block is in a shape like a Chinese character ji, guide grooves are arranged on two side surfaces of the guide block, a guide part matched with the guide grooves is arranged on the base, and the guide part is positioned in the guide grooves.

6. The alloy torque clamp-type electricity testing ground clamp according to claim 1, wherein the locking member is a fastening bolt, a head end of the fastening bolt is located on the outer side surface of the base, a rod end of the fastening bolt is located on the outer side surface of the upper cover, and a torque nut is arranged on the rod end.

7. The alloy torque clamp-type electricity testing ground clamp according to claim 6, wherein a belleville washer is disposed between the torque nut and the outer surface of the upper cover.

8. The alloy torque clamp-type electricity testing ground clamp according to claim 6, wherein a clamping groove is formed in the outer surface of the base, and the head end of the fastening bolt is clamped in the clamping groove in a limiting manner.

9. The alloy moment clamp type electricity testing ground clamp according to claim 1, characterized in that a conductive block is further arranged between the upper cover and the base, conductive block arc-shaped grooves respectively facing the upper cover and the base are oppositely arranged on the conductive block, an upper cover arc-shaped groove and a base arc-shaped groove respectively arranged facing the conductive block are arranged on the upper cover and the base, the upper cover arc-shaped groove and the conductive block arc-shaped groove oppositely arranged form a main wire groove, the base arc-shaped groove and the conductive block arc-shaped groove oppositely arranged form a branch wire groove, guide portions are arranged on two sides of one end of the conductive block facing the guide block, and a through hole which is slidably sleeved on the locking member is arranged in the middle of the conductive block.

10. The alloy torque clamp type electricity testing ground clamp according to claim 9, wherein the ends of the upper cover arc-shaped groove and the base arc-shaped groove are bent towards the conductive block, and at least one notch is arranged on the outer side of the bent portion of the upper cover arc-shaped groove and the base arc-shaped groove, a stop block matched with the notch is arranged on the outer side of the conductive block, the upper cover, the conductive block and the base are all arranged in a claw shape, and the upper cover arc-shaped groove, the conductive block arc-shaped groove and the base arc-shaped groove are all provided with convex teeth.