CN210668733U - Live-line connection lead wire clamp - Google Patents

Live-line connection lead wire clamp Download PDF

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Publication number
CN210668733U
CN210668733U CN201922202250.4U CN201922202250U CN210668733U CN 210668733 U CN210668733 U CN 210668733U CN 201922202250 U CN201922202250 U CN 201922202250U CN 210668733 U CN210668733 U CN 210668733U
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China
Prior art keywords
plate
wire clamping
wire
main body
sliding sleeve
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CN201922202250.4U
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Chinese (zh)
Inventor
殷洪海
吴彬
章立
王炜
彭涛
何星晔
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State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Changzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Changzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd, Changzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201922202250.4U priority Critical patent/CN210668733U/en
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Publication of CN210668733U publication Critical patent/CN210668733U/en
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Abstract

The utility model provides an electrified connecting wire clamp, which comprises a main body, a wire clamping slide block, a first nut, a second nut and a driving bolt; the main body is integrally formed by a wire clamping part which is used for clamping a wire and is wedge-shaped as a whole when in use and a drainage wire connecting part which is arranged at the lower side of the wire clamping part, is integrally connected with the wire clamping part and is used for connecting a drainage wire when in use; the wire clamping slide block is a structural member which is in sliding fit with the wire clamping part of the main body and is wedge-shaped as a whole; the first nut is fixedly arranged on the wire clamping sliding block; the second nut is fixedly arranged on the lead clamping part of the main body; the driving bolt is respectively in threaded connection with the first nut and the second nut, and when the driving bolt is screwed by a matched tool in use, the wire clamping sliding block can slide in the wire clamping part of the main body to clamp the wire of the power transmission line. The utility model discloses this fastener simple structure, the cost is lower, and installation convenient operation during the use has the advantage of current device of the same kind concurrently and has overcome the shortcoming of current device of the same kind.

Description

Live-line connection lead wire clamp
Technical Field
The utility model relates to a 10kV power supply line operation auxiliary tool field, concretely relates to live working connects lead wire clamp.
Background
The 10kV power distribution network is a power infrastructure for directly supplying power to users, and in order to improve the power supply reliability of the 10kV power distribution network, the 10kV power distribution network needs to be frequently upgraded and modified and operated and maintained. In the work of upgrading and transforming a 10kV power distribution network and operating and maintaining, a large amount of operations of lapping branch drainage wires on a main power transmission line are involved, and an important auxiliary tool for lapping the branch drainage wires on the main power transmission line is a lead connecting clamp for electrically connecting the drainage wires with the main power transmission line.
10kV distribution network that uses commonly at present mainly has with electrified lead connection clamp: bolt J type fastener, bolt C type fastener and launch wedge fastener, wherein: the bolt J-shaped wire clamp comprises 2J-shaped elements with wedges and 1 connecting bolt, the wedges of the upper J-shaped element and the lower J-shaped element are wedged mutually through the longitudinal fastening force of the bolt, the main power line and the drainage line are clamped simultaneously, and the electric conduction between the main power line and the drainage line is realized through the J-shaped wire clamp, so that the bolt J-shaped wire clamp has the advantages that the longitudinal fastening force of the bolt and the transverse force of the two J-shaped elements acting on a lead are not interfered with each other, and the good contact between the wire clamp and the lead can be still ensured even if the fastening force of the bolt is reduced after long-term operation; secondly, the bolt C-shaped wire clamp consists of 1C-shaped element, 2 hinged wedges and 1 bolt, the hinged wedges on the left side and the right side are wedged into a groove of the C-shaped element through the longitudinal fastening force of the bolt to clamp a main power transmission line and a drainage line respectively and realize electric connection, and the bolt C-shaped wire clamp has the advantages of better connection performance, being limited by the fact that the opening of the C-shaped element is small, the hinged wedges can be separated, the action is flexible, the C-shaped wire clamp is troublesome to install, and the installation operation cannot be carried out through an insulating rod. Thirdly, launch wedge clamp by 1C type component that is used for laminating main transmission line and drainage wire and the voussoir that is used for the fastening constitute, and be equipped with dedicated ejection mounting tool (including launching the chip), the installation operation during utilize hit the mounting tool and trigger launch the ejection impact force that the burning of the internal portion of core explosive produced with the voussoir and impress the voussoir into C type component and realize the electric connection between main transmission line and the drainage wire conductor, its advantage lies in need not worry that component fastening power reduces and causes the contact resistance to rise, and because the fastening power of launching the back wire clamp is great, the through-current capacity of wedge clamp is very much higher than other wire clamps, but its problem that exists is: high cost and indirect operation is not possible.
The following analysis shows that the existing electrified lead connecting clamps for 10kV power distribution networks, such as a bolt J type, a bolt C type, an ejection wedge and the like, have obvious defects although having the advantages, so that the development of the more applicable electrified lead connecting clamps for 10kV power distribution networks is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: aiming at the problems in the prior art, the electrified lead connecting clamp for the 10kV power distribution network is provided with an innovative structure, has simple structure, lower cost and convenient installation and operation during use, can firmly and reliably electrically connect the drainage wire with the main power transmission line for a long time, has smaller contact resistance and low temperature rise during use, has the advantages of various electrified lead connecting clamps, overcomes the defects of various electrified lead connecting clamps,
the technical scheme of the utility model is that: the utility model discloses an electrified lead connecting clamp, its structural feature is: the wire clamping device comprises a main body, a wire clamping slide block, a first nut, a second nut and a driving bolt; the main body is integrally formed by a wire clamping part which is used for clamping a wire and is wedge-shaped as a whole when in use and a drainage wire connecting part which is arranged on the lower side of the wire clamping part, is integrally connected with the wire clamping part and is used for connecting a drainage wire when in use; the wire clamping slide block is a structural member which is in sliding fit with the wire clamping part of the main body and is wedge-shaped as a whole; the first nut is fixedly arranged on the wire clamping sliding block; the second nut is fixedly arranged on the lead clamping part of the main body; the driving bolt is respectively in threaded connection with the first nut and the second nut, and when the driving bolt is screwed by a matched tool in use, the wire clamping sliding block can slide in the wire clamping part of the main body to clamp the wire of the power transmission line.
The further scheme is as follows: the main body comprises a wire clamping part positioned on the upper side and a drainage wire connecting part positioned on the lower side; the wire clamping part comprises a rear plate, an upper front side plate, a lower front side plate and a sliding sleeve plate; the rear plate is a wedge-shaped plate body with the left side vertical width larger than the right side vertical width, a front-back through slot hole serving as a bolt abdicating slot hole is formed in the rear plate, and the bolt abdicating slot hole extends from the middle of the left side of the rear plate to the right upper side to the middle of the rear plate; the upper plate is horizontally arranged in the left-right direction and is integrally or fixedly connected with the upper end of the rear plate from the rear end of the upper plate; the upper front side plate is vertically arranged in the left-right direction and is integrally connected with the front end of the upper plate from the upper end of the upper front side plate; the lower end surface of the upper plate is provided with a concave groove which is upwards concave in the left-right direction and is used as a wire clamping groove, the lower plate is obliquely arranged from the left lower part to the right upper part, and the rear end of the lower plate is integrally or fixedly connected with the front end of the lower part of the rear plate; the lower front side plate and the sliding sleeve plate are matched with the lower plate, the lower front side plate is vertically arranged, and the lower front side plate is integrally or fixedly connected with the front end of the lower plate from the lower end of the lower front side plate; the sliding sleeve plate is arranged in parallel with the lower plate, and the front end of the sliding sleeve plate is integrally or fixedly connected with the upper end of the lower front side plate, so that the lower plate, the lower front side plate and the sliding sleeve plate form a sliding sleeve structure; the drainage wire connecting part is a vertically arranged plate body part, 2 drainage wire connecting screw holes are formed in the drainage wire connecting part, and the upper end of the drainage wire connecting part is integrally connected with the lower end of the rear plate of the wire clamping part.
The further scheme is as follows: the wire clamping groove of the wire clamping part of the main body is arc-shaped in the vertical cross section.
The further scheme is as follows: the upper end surface of the lower plate of the wire clamping part of the main body is provided with a group of first non-return teeth which are in a sawtooth structure and open from the left lower part to the right upper part.
The further scheme is as follows: the wire clamping slide block is integrally formed by a body and a sliding sleeve part; the body is a wedge-shaped structural member matched with the wire clamping part of the main body, and the upper end of the body is provided with a wire clamping groove which is arranged in the left-right direction, is recessed downwards and has an arc-shaped longitudinal section; the sliding sleeve part is matched with the sliding sleeve structure of the lead clamping part; the sliding sleeve part is formed by a vertical plate integrally connected with the rear end of the body and a sleeve plate horizontally arranged in the left-right direction, and the wire clamping sliding block is slidably sleeved by a sliding sleeve structure of the sliding sleeve part and the wire clamping part; the lower end face of the sleeve plate of the sliding sleeve part is provided with a non-return tooth matched with the first non-return tooth arranged on the upper end face of the lower plate of the wire clamping part.
The further scheme is as follows: the electrified lead connecting clamp further comprises a check bolt, bolt holes are formed in the right portion of the lower plate of the lead clamping portion of the main body and the right portion of the sleeving and connecting plate of the sliding sleeve portion of the wire clamping slider, when the wire clamping slider clamps a lead in use, the check bolt penetrates through the bolt holes of the lower plate of the lead clamping portion of the main body and then is connected with the bolt holes of the sleeving and connecting plate of the sliding sleeve portion of the wire clamping slider.
The further scheme is as follows: the body of the wire clamping slide block is provided with a groove which is recessed backwards and is used as a reinforcing groove.
The further scheme is as follows: the main body and the wire clamping slide block are made of aluminum alloy.
The further scheme is as follows: the driving bolt sleeve is sleeved with the retaining ring, and the retaining ring is positioned on the right side of the first nut.
The utility model discloses has positive effect: (1) the utility model discloses an electrified lead connection clamp, it is wedge structure sliding fit's structural design through main part and double-layered line slider, makes its wire that can firmly press from both sides tight 10kV distribution lines reliably when using to realize being connected with the electricity of drainage wire, in the use, the resistance that continues does not cross 0.90 times of equal length wire resistance, and fastener surface temperature is less than wire surface temperature, and the performance of continuing is good. (2) The utility model discloses an electrified lead connecting clamp, it slides in the main part through drive bolt drive clamp line slider when using, presss from both sides tight wire by the wire casing of mutually supporting in clamp line slider and the main part, only need screw up drive bolt through the appurtenance during the use and can realize convenient operation, safety to the tight action of clamp of 10kV distribution lines wire. (3) The utility model discloses an electrified lead connecting clamp, its through the non return tooth and the structural design of non return bolt in main part and double-layered line slider mutually support, make it firmly set up not the pine take off on the wire for a long time in the use. (4) The utility model discloses an electrified lead connecting clamp, it can prevent effectively that main part and double-layered line slider excessively lock under drive bolt's effect from causing the damage through set up the retaining ring on drive bolt. (5) The utility model discloses an electrified lead connecting clamp, its simple structure, the cost is lower, and can effectively overcome the drawback that current device of the same kind exists, the sexual valence relative altitude.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of FIG. 1;
fig. 3 is a schematic perspective view of the present invention when viewed from the front;
fig. 4 is a schematic perspective view of the present invention when viewed from the rear.
The reference numbers in the above figures are as follows:
the device comprises a main body 1, a lead clamping part 11, a rear plate 11-1, a bolt abdicating slotted hole 11-1-1, an upper plate 11-2, an upper front side plate 11-3, a lead clamping groove 11-4, a lower plate 11-5, a lower front side plate 11-6 and a sliding sleeve plate 11-7; a drainage wire connecting part 12, wherein the drainage wire is connected with the screw hole 12-1;
the wire clamping device comprises a wire clamping sliding block 2, a body 21, a wire clamping groove 21-1, a reinforcing groove 21-2, a sliding sleeve part 22, a sleeve plate 22-1 and a non-return tooth 22-1-1;
the device comprises a first nut 3, a second nut 4, a driving bolt 5, a retainer ring 6 and a check bolt 7.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
(example 1)
In describing the orientation of the present embodiment, the direction toward which fig. 1 faces is taken as the front in the description, the direction away from the direction toward which fig. 1 faces is taken as the rear in the description, and the up-down and left-right directions in fig. 1 are still the up-down and left-right directions in the description.
Referring to fig. 1 to 4, the live connecting lead clamp of the present embodiment mainly includes a main body 1, a lead clamping slider 2, a first nut 3, a second nut 4, a driving bolt 5, a retainer ring 6, and a check bolt 7.
The main body 1 is mainly composed of a wire holding part 11 at the upper side and a drainage wire connecting part 12 at the lower side. The wire clamping part 11 mainly comprises a rear plate 11-1, an upper plate 11-2, an upper front side plate 11-3, a lower plate 11-5, a lower front side plate 11-6 and a sliding sleeve plate 11-7; the rear plate 11-1 is a wedge-shaped plate body with the left side vertical width larger than the right side vertical width, a front-back through slot hole is formed in the rear plate 11-1 and serves as a bolt abdicating slot hole 11-1-1, and the bolt abdicating slot hole 11-1-1 extends from the middle of the left side of the rear plate 11-1 to the right upper side to the middle of the rear plate 11-1; the upper plate 11-2 is horizontally arranged in the left-right direction, and the rear end of the upper plate 11-2 is integrally or fixedly connected with the upper end of the rear plate 11-1; the upper front side plate 11-3 is vertically arranged in the left-right direction, and the upper front side plate 11-3 is integrally connected with the front end of the upper plate 11-2 from the upper end thereof; a concave groove which is upwards concave is arranged on the lower end face of the upper plate 11-2 in the left-right direction and serves as a lead clamping groove 11-4, and the shape of the vertical section of the lead clamping groove 11-4 is preferably arc-shaped, so that a lead of a power transmission line can be clamped in use; the lower plate 11-5 is obliquely arranged from left lower side to right upper side, the lower plate 11-5 is integrally or fixedly connected with the front end of the lower part of the rear plate 11-1 from the rear end thereof, the lower front side plate 11-6 and the sliding sleeve plate 11-7 are matched with the lower plate 11-5, the lower front side plate 11-6 is vertically arranged, and the lower front side plate 11-6 is integrally or fixedly connected with the front end of the lower plate 11-5 from the lower end thereof; the sliding sleeve plate 11-7 is arranged in parallel with the lower plate 11-5, and the front end of the sliding sleeve plate 11-7 is integrally or fixedly connected with the upper end of the lower front side plate 11-6, so that a sliding sleeve structure is formed by the lower plate 11-5, the lower front side plate 11-6 and the sliding sleeve plate 11-7; preferably, the upper end surface of the lower plate 11-5 is further provided with a set of first non-return teeth with a sawtooth structure, which are opened from the lower left to the upper right. The drainage wire connecting part 12 is a vertically arranged plate body part, 2 drainage wire connecting screw holes 12-1 are arranged on the drainage wire connecting part 12 and used for connecting a drainage wire when in use, and the upper end of the drainage wire connecting part 12 is integrally connected with the lower end of the rear plate 11-1 of the wire clamping part 11.
The wire clamping slide block 2 is a wedge-shaped structural member which is in sliding fit with the wire clamping part 11 of the main body 1, and the wire clamping slide block 2 mainly comprises a body 21 and a sliding sleeve part 22. The body 21 is a wedge-shaped structural member matched with the wire clamping part 11 of the main body 1, the upper end of the body 21 is provided with a wire clamping groove 21-1 which is arranged in the left-right direction, is recessed downwards and has an arc-shaped longitudinal section, and when the wire clamping groove 21-1 at the upper end of the body 21 is matched with the wire clamping groove 11-4 of the wire clamping part 11 to clamp a wire of a power transmission line. Preferably, the body 21 is further provided with a groove recessed backwards, and the reinforcing groove 21-2 is formed as a reinforcing groove 21-2, so that the reinforcing groove 21-2 can reduce the weight of the wire clamping slider 2 on one hand, and can increase the structural strength of the wire clamping slider 2 on the other hand. The sliding sleeve part 22 is matched with the sliding sleeve structure of the lead clamping part 11; the sliding sleeve part 22 is formed by integrating a vertical plate (not marked in the figure) integrally connected with the rear end of the body 21 and a sleeving plate 22-1 obliquely arranged in the left-right direction, the vertical plate of the sliding sleeve part 22 and the sleeving plate 22-1 form a structure with a reverse L-shaped longitudinal section, and the wire clamping sliding block 2 is slidably sleeved by the sliding sleeve part 22 and the sliding sleeve structure of the wire clamping part 11. Preferably, the lower end surface of the sleeve plate 22-1 of the sliding sleeve portion 22 is provided with a non-return tooth 22-1-1 which is matched with the first non-return tooth arranged on the upper end surface of the lower plate 11-5 of the wire clamping portion 11, and when in use, the non-return tooth 22-1-1 arranged on the lower end surface of the sleeve plate 22-1 of the sliding sleeve portion 22 is matched with the first non-return tooth arranged on the upper end surface of the lower plate 11-5 of the wire clamping portion 11, so that the wire clamping slider 2 cannot easily slide to the left and downwards to release the clamping of the wire after clamping the wire, and the electrified lead connecting clamp of the embodiment can be firmly arranged on the wire for a long time without releasing.
The main body 1 and the wire clamping slide block 2 are made of conductive materials, and preferably made of aluminum alloy.
The first nut 3 is fixedly arranged at the left lower part of the rear end surface of the body 21 of the wire clamping slide block 2; the second nut 4 is fixedly arranged on the rear end face of the rear plate 11-1 of the wire clamping part 11 of the main body 1 and is positioned on the right side of the bolt abdicating slotted hole 11-1-1 of the rear plate 11-1.
The driving bolt 5 is respectively connected with the first nut 3 and the second nut 4 by screw threads, and when the driving bolt 5 is screwed by a matched tool in use, the wire clamping slide block 2 can slide from the lower left to the upper right in the wire clamping part 11 of the main body 1 to clamp a wire.
The retaining ring 6 is arranged as the optimal mode, the retaining ring 6 is arranged on the driving bolt 5 and located on the right side of the first nut 3, and the retaining ring 6 is used for preventing the main body 1 and the wire clamping sliding block 2 from being excessively locked under the action of the driving bolt 5 to cause damage.
The check bolt 7 is preferably arranged, and accordingly, the right portion of the lower plate 11-5 of the wire clamping portion 11 of the main body 1 and the right portion of the sleeve plate 22-1 of the sliding sleeve portion 22 of the wire clamping slider 2 are respectively provided with bolt holes, and in use, after the wire clamping slider 2 clamps the wire, the check bolt 7 is connected with the bolt hole of the sleeve plate 22-1 of the sliding sleeve portion 22 of the wire clamping slider 2 after penetrating through the bolt hole of the lower plate 11-5 of the wire clamping portion 11 of the main body 1, so that the electrified wire clamping clamp of the embodiment can be firmly arranged on the wire for a long time without loosening.
When the live lead wire clamp is used, the lead wire clamping groove 11-4 of the lead wire clamping part 11 of the main body 1 and the wire clamping groove 21-1 at the upper end of the body 21 of the wire clamping slider 2 are matched to clamp the lead wire of a 10kV distribution line, and the matched tool is used for screwing the driving bolt 5 so that the wire clamping slider 2 slides from the lower left to the upper right in the lead wire clamping part 11 of the main body 1 to clamp the lead wire; the set drainage wire is connected with the drainage wire connecting part 12 by using 2 drainage wire connecting screw holes 12-1 on the drainage wire connecting part 12 of the main body 1, thereby completing the work of setting the drainage wire on the lead of the 10kV distribution line.
The live lead connecting clamp of the present embodiment has the following brief descriptions of the connection resistance and the temperature rise at the time of energization in the use test:
according to the standard of GB/T2317.3 electric power fittings, for compression fittings, if the resistance value of the compression fittings is not more than the resistance value of a reference lead with equal length of the fittings, the electrical performance meets the requirement; for non-compressive hardware, if the resistance value is not more than 1.1 times of the resistance value of the reference lead equal to the hardware, the test is passed. The live lead connecting clamp of the embodiment belongs to an uncompressed hardware fitting, so the connection resistance of the live lead connecting clamp and a lead is not more than 1.1 times of the resistance of the lead with the same length. Experiments prove that the electrified lead connecting clamp has the advantages that the connection resistance is equal to 0.88 times of the resistance of the lead with the same length before temperature rise, and the connection resistance is equal to 0.90 times of the resistance of the lead with the same length after temperature rise, so that the requirements of national standards are met.
In a temperature rise test for bearing load current of a distribution network line, when the loop current is 300A, the surface temperature of the wire clamp is lower than that of a lead, and the surface temperature of a copper drainage wire is stabilized at 42 ℃; when the loop current is 500A, the surface temperature of the wire clamp is lower than that of the lead, and the surface temperature of the copper drainage wire is stabilized at 62 ℃.
Tests show that the live lead connecting clamp and the lead connecting position of the embodiment have small resistance, and the clamp has a large heat dissipation area, so that the temperature of the surface of the clamp is lower than that of the surface of the lead, and the live lead connecting clamp of the embodiment can safely complete the connection of the drainage wire of a 10kV distribution line.
The above embodiments are illustrative of the specific embodiments of the present invention, but not limiting to the present invention, and those skilled in the relevant art can also make various changes and modifications to obtain the equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should fall under the protection scope of the present invention.

Claims (9)

1. A live wire clamp, comprising: the wire clamping device comprises a main body, a wire clamping slide block, a first nut, a second nut and a driving bolt; the main body is integrally formed by a wire clamping part which is used for clamping a wire and is wedge-shaped as a whole when in use and a drainage wire connecting part which is arranged on the lower side of the wire clamping part, is integrally connected with the wire clamping part and is used for connecting a drainage wire when in use; the wire clamping slide block is a structural member which is in sliding fit with the wire clamping part of the main body and is wedge-shaped as a whole; the first nut is fixedly arranged on the wire clamping sliding block; the second nut is fixedly arranged on the lead clamping part of the main body; the driving bolt is respectively in threaded connection with the first nut and the second nut, and when the driving bolt is screwed by a matched tool in use, the wire clamping sliding block can slide in the wire clamping part of the main body to clamp the wire of the power transmission line.
2. The live lead connection clamp of claim 1, wherein: the main body comprises a wire clamping part positioned on the upper side and a drainage wire connecting part positioned on the lower side; the wire clamping part comprises a rear plate, an upper front side plate, a lower front side plate and a sliding sleeve plate; the rear plate is a wedge-shaped plate body with the left side vertical width larger than the right side vertical width, a front-back through slot hole serving as a bolt abdicating slot hole is formed in the rear plate, and the bolt abdicating slot hole extends from the middle of the left side of the rear plate to the right upper side to the middle of the rear plate; the upper plate is horizontally arranged in the left-right direction and is integrally or fixedly connected with the upper end of the rear plate from the rear end of the upper plate; the upper front side plate is vertically arranged in the left-right direction and is integrally connected with the front end of the upper plate from the upper end of the upper front side plate; the lower end surface of the upper plate is provided with a concave groove which is upwards concave in the left-right direction and is used as a wire clamping groove, the lower plate is obliquely arranged from the left lower part to the right upper part, and the rear end of the lower plate is integrally or fixedly connected with the front end of the lower part of the rear plate; the lower front side plate and the sliding sleeve plate are matched with the lower plate, the lower front side plate is vertically arranged, and the lower front side plate is integrally or fixedly connected with the front end of the lower plate from the lower end of the lower front side plate; the sliding sleeve plate is arranged in parallel with the lower plate, and the front end of the sliding sleeve plate is integrally or fixedly connected with the upper end of the lower front side plate, so that the lower plate, the lower front side plate and the sliding sleeve plate form a sliding sleeve structure; the drainage wire connecting part is a vertically arranged plate body part, 2 drainage wire connecting screw holes are formed in the drainage wire connecting part, and the upper end of the drainage wire connecting part is integrally connected with the lower end of the rear plate of the wire clamping part.
3. The live lead connection clamp of claim 2, wherein: the upper and lower cross-sectional shapes of the wire clamping groove of the wire clamping part of the main body are arc-shaped.
4. The live lead connection clamp of claim 2, wherein: the upper end face of the lower plate of the wire clamping part of the main body is provided with a group of first non-return teeth which are in a sawtooth structure and open from the left lower part to the right upper part.
5. The live lead connection clamp of claim 4, wherein: the wire clamping sliding block is integrally formed by a body and a sliding sleeve part; the body is a wedge-shaped structural member matched with the wire clamping part of the main body, and the upper end of the body is provided with a wire clamping groove which is arranged in the left-right direction, is recessed downwards and has an arc-shaped longitudinal section; the sliding sleeve part is matched with the sliding sleeve structure of the lead clamping part; the sliding sleeve part is formed by a vertical plate integrally connected with the rear end of the body and a sleeve plate horizontally arranged in the left-right direction, and the wire clamping sliding block is slidably sleeved by a sliding sleeve structure of the sliding sleeve part and the wire clamping part; the lower end face of the sleeve plate of the sliding sleeve part is provided with a non-return tooth matched with the first non-return tooth arranged on the upper end face of the lower plate of the wire clamping part.
6. The live lead connection clamp of claim 5, wherein: the wire clamping device is characterized by further comprising a check bolt, bolt holes are formed in the right portion of the lower plate of the wire clamping portion of the main body and the right portion of the sleeving plate of the sliding sleeve portion of the wire clamping slider, and when the wire clamping slider clamps a wire in use, the check bolt penetrates through the bolt holes of the lower plate of the wire clamping portion of the main body and then is connected with the bolt holes of the sleeving plate of the sliding sleeve portion of the wire clamping slider.
7. The live lead connection clamp of claim 5, wherein: and a groove which is recessed backwards is arranged on the body of the wire clamping sliding block and is used as a reinforcing groove.
8. The live lead connecting clamp according to any one of claims 1 to 7, wherein: the main body and the wire clamping slide block are made of aluminum alloy.
9. The live lead connection clamp of claim 1, wherein: the driving bolt sleeve is sleeved with the retaining ring, and the retaining ring is positioned on the right side of the first nut.
CN201922202250.4U 2019-12-10 2019-12-10 Live-line connection lead wire clamp Active CN210668733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922202250.4U CN210668733U (en) 2019-12-10 2019-12-10 Live-line connection lead wire clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922202250.4U CN210668733U (en) 2019-12-10 2019-12-10 Live-line connection lead wire clamp

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Publication Number Publication Date
CN210668733U true CN210668733U (en) 2020-06-02

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Application Number Title Priority Date Filing Date
CN201922202250.4U Active CN210668733U (en) 2019-12-10 2019-12-10 Live-line connection lead wire clamp

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110829060A (en) * 2019-12-10 2020-02-21 国网江苏省电力有限公司常州供电分公司 Electrified lead connecting clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110829060A (en) * 2019-12-10 2020-02-21 国网江苏省电力有限公司常州供电分公司 Electrified lead connecting clamp

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