CN115241814A

CN115241814A - Power transmission and distribution line broken line rapid repair wire clamp

Info

Publication number: CN115241814A
Application number: CN202211004900.4A
Authority: CN
Inventors: 冯志华; 孙保成; 管丽; 王�琦; 胡阳; 赵亮; 魏萌; 赵建业
Original assignee: Bozhou Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: Bozhou Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-10-25
Anticipated expiration: 2042-08-22
Also published as: CN115241814B

Abstract

The invention discloses a wire clamp for quickly repairing broken wires of a power transmission and distribution line, which comprises at least one length adjusting assembly and two connecting assemblies; coupling assembling includes the connecting block and is used for with the fixed block that connecting block and wire are connected, length adjustment assembly's both sides respectively with two the connecting block is connected. The method is helpful for solving the problems that the traditional power transmission and distribution line is large in rush repair workload and long in time, and the power supply service quality is influenced.

Description

Power transmission and distribution line broken line rapid repair wire clamp

Technical Field

The invention relates to the technical field of power transmission and distribution line breakage, in particular to a wire clamp for quickly repairing the power transmission and distribution line breakage.

Background

The transmission and distribution line comprises a transmission and conduction line and a distribution and conduction line, wherein the transmission and conduction line is realized by boosting electric energy generated by a generator by using a transformer and then connecting the electric energy into the transmission and conduction line through control equipment such as a breaker, the distribution and conduction line is a line for transmitting electric power from a step-down transformer substation to a distribution transformer or transmitting electric power from the distribution transformer substation to a power consumption unit, and the transmission and conduction line and the distribution and conduction line are important components for ensuring effective use of the electric power.

In the long-term use process of the power transmission and distribution line, because the power transmission and distribution line has long running time, the gravity of the overhead line conductor and the thermal expansion and cold contraction environment influence, the conductor line is extended, the sag is increased, the distance to the ground is reduced, and the phenomenon that the passing vehicles are pulled or tree obstacles fall on the line, so that the power transmission conductor is broken or damaged is easily caused; moreover, as the line is subjected to severe weather, such as natural conditions of strong wind, lightning stroke, icing and the like, the line conductor is broken or stranded, so that the line is powered off, and the power supply service quality is influenced; the traditional first-aid repair method is that an original broken wire is detached from a linear electric pole close to strain and placed on the ground, the wire is added for binding or crimping, and binding or crimping is needed in an adjacent span, because a power line regulation requires that two joints cannot be arranged in one span, and strain poles and towers need to be remade with strain hanging points, the first-aid repair workload is large, the time is long, and the power supply service quality is influenced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a power transmission and distribution line broken wire rapid rush-repair wire clamp which can rapidly repair broken wires in a power transmission and distribution line.

In order to solve the technical problem, the invention adopts the following technical scheme: a power transmission and distribution line broken line rapid first-aid repair wire clamp comprises at least one length adjusting assembly and two connecting assemblies; coupling assembling includes the connecting block and is used for with the fixed block that the connecting block is connected with the wire, length adjustment assembly's both sides respectively with two the connecting block is connected.

Furthermore, a through groove with an isosceles trapezoid-shaped cross section is formed in the connecting block, and the cross section of the fixing block is also of an isosceles trapezoid-shaped structure and can be inserted into the through groove;

under the connecting state of the connecting block, the large opening end of the through groove faces to the breaking direction of the lead, the fixed block is positioned in the through groove, and the lead is clamped between the side wall of the fixed block and the groove wall of the through groove in a U-shaped manner.

Furthermore, grooves used for increasing the contact area with the lead are formed in the groove walls of the two sides of the through groove and the side walls of the fixing blocks.

Furthermore, the corner position of one side of the corresponding long bottom side of the fixed block is of a round angle structure, the radius length of the round angle is far smaller than the length of the long bottom side of the fixed block, and the groove in the fixed block is formed along the outer edge of the fixed block.

Further, each connecting assembly also comprises a fastener for preventing the fixing block from being separated from the large opening end of the through groove.

Further, the fastener includes baffle basal portion and convex supplementary portion, under the fastener fixed state, the baffle basal portion is located the outside of the little mouthful of logical groove, the convex supplementary portion stretches into in the little mouthful of logical groove, just the baffle basal portion with the convex supplementary portion through the bolt with the fixed block is connected.

Further, the length adjustment assembly comprises a screw rod and two nut groups in threaded connection on the screw rod, two ends of the screw rod are respectively penetrated and arranged on the connecting blocks, the two nut groups correspond to the two connecting blocks one to one, each nut group is composed of two nuts, and the two nuts are respectively located on two sides of the corresponding connecting blocks.

Further, each connecting component also comprises at least two soft aluminum sheets for meeting the current-carrying capacity of the line.

Further, the insulating sheath is used for insulating and protecting the length adjusting assembly and the two connecting assemblies.

Further, insulating sheath includes casing and closing cap, the groove of stepping down that supplies the wire to pass is seted up respectively to the both sides of casing, the opening edge of casing is provided with a plurality of archs, the opening edge of closing cap has been seted up a plurality ofly and a plurality of the fixed orifices that the arch matches, it is a plurality of protruding and a plurality of the fixed orifices one-to-one joint.

The invention has the beneficial effects that:

the invention discloses a quick emergency repair wire clamp for broken wires of a power transmission and distribution line, which is provided with at least one length adjusting component and two connecting components, wherein each connecting component comprises a connecting block and a fixed block, when the power transmission line is subjected to emergency repair, a broken wire is firstly detached from a linear electric pole close to a strain tower and placed on the ground, the length of the original broken wire is measured, the damaged wire is removed, the broken wires at two ends are respectively connected through the connecting blocks and the fixed blocks of the two connecting components, then the distance between the two connecting components is adjusted through the length adjusting component, the integral length of the wire after emergency repair can be adjusted to the original broken front lead length, and the wire can be subsequently hung on the strain tower again only by being hung on the strain tower again, so that the emergency repair work can be finished, the strain tower hanging point does not need to be manufactured again, the emergency repair work load is minimized, the emergency repair time is short, the labor intensity is minimized, and the influence on the power supply service quality is minimized.

Drawings

FIG. 1 is a top cross-sectional view of a portion of a wire clamp for rapid emergency repair of power transmission and distribution line disconnection according to the present invention;

FIG. 2 is a front view of the wire clamp structure for rapid emergency repair of power transmission and distribution line disconnection;

FIG. 3 is a top view of the length adjustment assembly and connection assembly connection structure of the present invention;

FIG. 4 is a top view of the wire connection state structure of the present invention;

FIG. 5 is a side view of the connector assembly construction of the present invention;

fig. 6 is a schematic view of the fixing block of the present invention.

The components in the drawings are labeled as follows: 1. a length adjustment assembly; 101. a screw rod; 102. a nut set; 1021. a nut; 2. a connection assembly; 201. connecting blocks; 2011. a through groove; 202. a fixed block; 2021. a groove; 203. a fastener; 2031. a baffle base; 2032. a convex auxiliary portion; 204. a soft aluminum sheet; 3. an insulating sheath; 301. a housing; 3011. a yielding groove; 3012. a protrusion; 302. sealing the cover; 3021. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if the present invention relates to directional indications such as up, down, left, right, front and back 823082308230, 8230, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three parallel schemes, taking the power transmission and distribution line and/or B as an example, and includes a scheme of the power transmission and distribution line, or a scheme B, or a scheme satisfied by both the power transmission and distribution line and the B. In addition, "a plurality" means two or more. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 1-6.

The invention relates to a wire clamp for quickly repairing broken lines of a power transmission and distribution line, which comprises at least one length adjusting assembly 1 and two connecting assemblies 2; the connecting assembly 2 comprises a connecting block 201 and a fixing block 202 used for connecting the connecting block 201 with a wire, and two sides of the length adjusting assembly 1 are respectively connected with the connecting block 201.

The invention discloses a power transmission and distribution line broken line fast-repair wire clamp which is provided with at least one length adjusting component 1 and two connecting components 2, wherein each connecting component 2 comprises a connecting block 201 and a fixing block 202, when the power transmission line is broken and repaired, a broken wire is firstly detached from a linear electric pole close to a strain tower and placed on the ground, the length of the original broken wire is measured, a damaged wire is removed, the broken wires at two ends are respectively connected through the connecting blocks 201 and the fixing blocks 202 of the two connecting components 2, then the distance between the two connecting components 2 is adjusted through the length adjusting component 1, the integral length of the repaired wire is adjusted to the length of the original broken lead wire, and the broken wire repairing work can be completed only by re-hanging the wire on the strain tower, without re-manufacturing a strain hanging point of the strain tower, so that the repairing work load is minimum, the repairing time is short, the labor intensity is minimum, and the influence on the power supply service quality is minimum;

in the invention, the length adjusting assembly 1 and the connecting assembly 2 are made of conductive materials, and the specific materials are the same as those of the power transmission and distribution line conductors, for example, the aluminum conductor is made of aluminum material, and the copper conductor is made of copper material.

In an embodiment, a through groove 2011 with an isosceles trapezoid cross section is formed inside the connecting block 201, and the cross section of the fixing block 202 is also in an isosceles trapezoid structure and can be inserted into the through groove 2011;

under connecting block 201 connected state, the macrostoma end that leads to groove 2011 is towards wire fracture direction, fixed block 202 is located lead to the groove 2011, the wire is the U type form and is held the lateral wall of fixed block 202 and between the cell wall that leads to groove 2011. In this embodiment, two coupling assembling 2 are the symmetry setting, when connecting cracked wire, the fracture end of wire passes from the osculum end of logical groove 2011, then wind along the outside of fixed block 202, then through inserting fixed block 202 in logical groove 2011, with between the lateral wall of wire centre gripping fixed block 202 and logical groove 2011, the fracture end of wire is around also can wear out from the osculum end of logical groove 2011 after establishing, and hang again along with the wire is fixed well, because the wire on the coupling assembling 2 of both sides has certain pulling force, and because the structural feature of logical groove 2011 and fixed block 202, the pulling force of wire makes fixed block 202 move toward the osculum end of logical groove 2011, make simultaneously the gap between fixed block 202 and the logical groove 2011 diminish, thereby realize the clamp effect to the wire, and in this embodiment, the connection of wire on two coupling assembling 2 is the symmetry setting, design like, through the fixing in connecting block 201 and the logical groove 2011, do not need processes such as crimping or construction, make the connection operation of defeated line method, and the wire balancing force is big, and the wire pulling force is good, coupling assembling 2, binding is balanced.

In one embodiment, grooves 2021 for increasing the contact area with the wires are formed on the groove walls of the through groove 2011 and the side wall of the fixing block 202. In this embodiment, the longitudinal section of the groove 2021 of setting is the triangle-shaped structure, and the design is through setting up groove 2021 and increaseing fixed block 202 and leading to groove 2011 to the wire centre gripping be with the area of contact of wire, during the wire atress, increase frictional force prevents the wire slippage, also can reduce contact resistance simultaneously, reduces the electrical energy damage, practices thrift the electric energy.

In an embodiment, a corner position of one side of the corresponding long bottom side of the fixed block 202 is a rounded corner structure, a radius length of the rounded corner is far smaller than a length of the long bottom side of the fixed block 202, and the groove 2021 on the fixed block 202 is formed along an outer edge of the fixed block 202. By the design, the groove 2021 on the fixing block 202 is in a structure with two small round corners at the corners, so that the wire can be bent and attached to the groove 2021 when being wound, the fixing block 202 is ensured to be in close contact with the wire, and friction is increased, so that the wire cannot slide and cannot be damaged.

In an embodiment, each of the connection assemblies 2 further includes a fastener 203 for preventing the fixing block 202 from being detached from the large-opening end of the through slot 2011. The fixing block 202 is fixed by the fastener 203, so that the fixing block 202 is not shaken to be separated.

In an embodiment, the fastening member 203 includes a baffle base 2031 and a convex auxiliary portion 2032, in a fixed state of the fastening member 203, the baffle base 2031 is located outside a small opening end of the through groove 2011, the convex auxiliary portion 2032 extends into the small opening end of the through groove 2011, and the baffle base 2031 and the convex auxiliary portion 2032 are connected to the fixing block 202 through a bolt. By the design, after the fastening piece 203 is connected with the fixing block 202, the baffle base 2031 is blocked outside the small-opening end of the through groove 2011, so that the small-opening end of the through groove 2011 cannot enter, the situation that the fixing block 202 is separated from the large-opening end of the through groove 2011 is avoided, and the installation is simple and convenient.

In an embodiment, the length adjustment assembly 1 includes a screw rod 101 and two nut sets 102 screwed on the screw rod 101, two ends of the screw rod 101 respectively penetrate through the two connection blocks 201, the two nut sets 102 correspond to the two connection blocks 201 one by one, each nut set 102 is composed of two nuts 1021, and the two nuts 1021 are respectively located at two sides of the corresponding connection block 201. Design like this, when needing to adjust length adjustment subassembly 1, only need adjust the nut of the both sides of a connecting block 201 can, adjust the simple operation, and in this embodiment, still be provided with the spring shim between every nut 1021 and the connecting block 201, prevent that the nut is not hard up.

In an embodiment, each of the connection assemblies 2 further includes at least two soft aluminum pieces 204 for satisfying the current capacity of the line. Design like this, avoid appearing the condition that can't satisfy the circuit current-carrying capacity through coupling assembling 2 and length adjustment subassembly 1 for current transmission is unstable, and in this embodiment, the connection of soft aluminum sheet 204 symmetry is in the upper and lower both sides of two coupling assembling 2, and concrete soft aluminum sheet 204 is according to the wire setting of difference, for example 240 square millimeter's wire is every with three soft aluminum sheets 204.

In an embodiment, the length adjusting assembly 1 further comprises an insulating sheath 3 for insulating and protecting the length adjusting assembly 1 and the two connecting assemblies 2. By the design, the length adjusting component 1 and the two connecting components 2 can be protected by additionally arranging the insulating sheath 3, the safe operation of a power transmission and distribution line is ensured, and the condition of electric shock at a broken line part can be prevented.

In an embodiment, the insulating sheath 3 includes a casing 301 and a cover 302, the abdicating groove 3011 that supplies the wire to pass is seted up respectively to the both sides of casing 301, the opening edge of casing 301 is provided with a plurality of archs 3012, the opening edge of cover 302 is seted up a plurality ofly and a plurality of the fixed orifices 3021 that the arch 3012 matches, and is a plurality of protruding 3012 and a plurality of the one-to-one joint of fixed orifices 3021 is a plurality of. Design like this, make things convenient for insulating sheath 3's dismantlement and installation, and in this embodiment, the groove 3011 of stepping down that sets up is seted up along the border of casing 301, and the groove 3011 of stepping down has two, at casing 301 symmetric distribution, conveniently blocks the wire, and makes the wire be in on same horizontal straight line after connecting.

The specific application method of the invention is as follows: firstly, a broken wire is dismantled from a linear electric pole close to a strain and placed on the ground, the length of an original broken wire is measured, the broken wire is removed, the length of the broken wire is 300-500 mm, two connecting assemblies 2 are respectively connected with the two broken wires, the total length after connection is greater than the length of the original wire, the connection sag is prevented from being small, the stress of the electric pole is large, the slight length is adjusted through a length adjusting assembly 1, the length of the slight length is adjusted to the original length, then an insulating sheath 3 is sleeved on the outer side, and finally, the strain clamp of the strain tower is hung again, so that the wire breakage rush-repair work can be completed. According to different field conditions, a longitudinal mode or a transverse mode can be selected; when the wires are connected, the wires are respectively inserted from the small end in the through grooves 2011, the directions are opposite, the wires are bent by a certain length according to the shape of the fixing block 202, the wires are wound along the outer edge of the fixing block 202, then the fixing block 202 and the wires are placed in the through grooves 2011, and then the wires are fixed through the fasteners 203.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, as various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.

Claims

1. A power transmission and distribution line broken line fast first-aid repair wire clamp is characterized by comprising at least one length adjusting assembly (1) and two connecting assemblies (2); coupling assembling (2) including connecting block (201) and be used for with fixed block (202) that connecting block (201) are connected with the wire, the both sides of length adjustment subassembly (1) respectively with two connecting block (201) are connected.

2. The power transmission and distribution line disconnection rapid first-aid repair wire clamp according to claim 1, characterized in that a through groove (2011) with an isosceles trapezoid cross section is formed in the connecting block (201), and the cross section of the fixing block (202) is also in an isosceles trapezoid structure and can be inserted into the through groove (2011);

under connecting block (201) connected state, the macrostoma end that leads to groove (2011) is towards wire fracture direction, fixed block (202) are located lead to groove (2011), the wire is the centre gripping of U type form and is in the lateral wall of fixed block (202) and between the cell wall that leads to groove (2011).

3. The power transmission and distribution line broken wire rapid first-aid repair wire clamp as claimed in claim 2, wherein grooves (2021) for increasing contact area with a wire are formed in the groove walls on two sides of the through groove (2011) and the side wall of the fixing block (202).

4. The power transmission and distribution line wire breakage fast repair wire clamp according to claim 3, wherein the corner position of one side of the corresponding long bottom side of the fixed block (202) is of a round angle structure, the radius length of the round angle is far smaller than the length of the long bottom side of the fixed block (202), and the groove (2021) in the fixed block (202) is formed along the outer edge of the fixed block (202).

5. The line breakage fast repair clamp for power transmission and distribution lines according to claim 2, wherein each of the connection assemblies (2) further comprises a fastener (203) for preventing the fixing block (202) from being separated from the large-opening end of the through groove (2011).

6. The power transmission and distribution line broken string fast first-aid repair wire clamp according to claim 5, characterized in that fastener (203) includes baffle base (2031) and convex auxiliary portion (2032), under fastener (203) fixed state, baffle base (2031) is located the outside of the osculum end of logical groove (2011), convex auxiliary portion (2032) stretches into in the osculum end of logical groove (2011), just baffle base (2031) with convex auxiliary portion (2032) through the bolt with fixed block (202) is connected.

7. The power transmission and distribution line broken wire fast-repair wire clamp according to any one of claims 1 to 6, wherein the length adjusting assembly (1) comprises a lead screw (101) and two nut sets (102) in threaded connection on the lead screw (101), two ends of the lead screw (101) are respectively arranged on the connecting block (201) in a penetrating manner, two nut sets (102) correspond to two connecting blocks (201) in a one-to-one manner, each nut set (102) comprises two nuts (1021), and the two nuts (1021) are respectively arranged on two sides of the connecting block (201).

8. The power transmission and distribution line disconnection rapid repair clamp according to any one of claims 1 to 6, wherein each connecting assembly (2) further comprises at least two soft aluminum sheets (204) for satisfying the current-carrying capacity of the line.

9. The power transmission and distribution line disconnection rapid repair clamp according to any one of claims 1 to 6, further comprising an insulating sheath (3) for insulating and protecting the length adjustment assembly (1) and the two connection assemblies (2).

10. The wire clamp for rapid first-aid repair of power transmission and distribution line breakage as claimed in claim 9, wherein the insulating sheath (3) comprises a casing (301) and a cover (302), the two sides of the casing (301) are respectively provided with a abdication groove (3011) for a wire to pass through, the opening edge of the casing (301) is provided with a plurality of protrusions (3012), the opening edge of the cover (302) is provided with a plurality of fixing holes (3021) matched with the protrusions (3012), and the protrusions (3012) are clamped with the fixing holes (3021) in a one-to-one correspondence manner.