CN213304936U

CN213304936U - Overhead power line clamp

Info

Publication number: CN213304936U
Application number: CN202021868289.6U
Authority: CN
Inventors: 朱明媚; 景政; 赵晓艳
Original assignee: Jiangsu Jinyi Electric Power Technology Co ltd
Current assignee: Jiangsu Jinyi Electric Power Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-28
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses an overhead power line fastener, including fastener shell and cable, the inside cavity of fastener shell sets up, the fastener shell sets up for preceding shell and back shell components of a whole that can function independently, symmetric distribution around preceding shell and the back shell, the inside splint that are provided with of fastener shell, splint surface and the contact of fastener shell inner wall, splint are the components of a whole that can function independently setting of punch holder and lower plate, the symmetric distribution about punch holder and the lower plate, the vertical a set of fixed plate that is provided with of fastener shell top surface, the fixed plate is two sets of, another group the fixed plate sets up below the fastener shell. The utility model adopts the wedge-shaped arrangement of the wire clamp shell and the clamping plate, so that the clamping force of the wire clamp is enhanced, and the anti-slip strip is arranged between the wire clamp and the cable to ensure the anti-slip clamping, thereby preventing dislocation during installation; through being provided with key piece and fastening screw, guarantee that fastening bolt two can not cause nut one not hard up when receiving the vibration, increase stability effect.

Description

Overhead power line clamp

Technical Field

The utility model relates to an overhead line electric power fitting technical field specifically is an overhead electric power line fastener.

Background

At present, there are three kinds of power line clamps used in power transmission line erection work. One is the pressing mode, and the fastener is aluminum alloy aluminum pipe, and both ends insert the wire during installation, then compress tightly it with hydraulic tool, make the wire link together, and this kind of product is inconvenient firstly, need carry heavy hydraulic tool, and the operating speed is slow. In addition, the aluminum pipe bears hundreds of tons of pressure, the metal deformation of the aluminum pipe is large, and the metal phase is changed to different degrees. The cable clamp body has cracks, so that the mechanical strength is reduced and accidents are easy to happen. The other type is an explosion type, the wire clamp is also an aluminum alloy pipe, after a wire is inserted into the pipe, an explosion cord is wound outside the pipe, the wire clamp clamps the wire by virtue of strong impact force at the moment of explosion initiation, but due to the strong impact force, the metal metallographic phase is changed in different degrees, the mechanical strength is reduced, the other type is a bolt type power line wire clamp, the tension wire is clamped by a bolt, the screw is loosened due to wind power, icing or other vibration, the wire slides in the wire clamp and is drawn out, and the sag of the wire is reduced, so that the wire running phenomenon is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an overhead power line fastener to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: an overhead power line cable clamp comprises a cable clamp shell and a cable, wherein the cable clamp shell is hollow, the cable clamp shell is formed by a front shell and a rear shell which are arranged in a split manner, the front shell and the rear shell are symmetrically distributed in the front and back direction, clamping plates are arranged in the cable clamp shell, the surfaces of the clamping plates are contacted with the inner wall of the cable clamp shell, the clamping plates are formed by an upper clamping plate and a lower clamping plate which are arranged in the split manner, the upper clamping plate and the lower clamping plate are symmetrically distributed in the up and down direction, a set of fixing plates are vertically arranged on the top surface of the cable clamp shell, the two sets of fixing plates are arranged in two sets, the other set of fixing plates are arranged below the cable clamp shell, the upper set of fixing plates is two, the upper two fixing plates are arranged in the front and back direction, the, the front end of the second fastening bolt penetrates through the two fixing plates above the second fastening bolt and is in threaded connection with the first nut, a key groove is formed in the surface of the second fastening bolt along the second axial direction of the second fastening bolt, a groove is formed in the position, corresponding to the key groove, of the inner wall of the upper fixing plate and the inner wall of the first nut, the key groove and the front end opening of the groove are arranged, a key block is arranged inside the key groove, the surface of the key block is in sliding connection with the inner wall of the key groove and the inner wall of the groove, and the key block.

Further, fastener shell and splint all are the narrow wedge setting on the right side of a left side, fastener shell and splint material are the aluminum alloy material, make this fastener whole weight reduction, increase the firmness.

Further, the right end of the cable penetrates through the cable clamp shell and the clamping plate and extends to the right side of the cable clamp shell, anti-slip strips are arranged at the contact positions of the surface of the cable and the inner wall of the clamping plate, and the anti-slip strips are evenly arranged on the bottom surface of the upper clamping plate and the top surface of the lower clamping plate. So that the cable is kept from sliding in the middle of the clamping plate through the anti-slip strip.

Furthermore, the front side of the front shell is fixedly connected with the back side of the fixed column, the front side of the fixed column is fixedly connected with the back side of the limiting disc, the surface of the fixed column is rotatably connected with the inner wall of the left end of the clamping plate, the back side of the rear shell is symmetrically arranged with the front shell, and the right ends of the two clamping plates are fixedly connected through a fastening bolt.

Furthermore, a gasket and an elastic sheet are arranged between the second fastening bolt and the upper end rear fixing plate, and the internal thread of the first nut is matched with the external thread of the fastening bolt.

Furthermore, the key block length is equal to the key slot length, and the key block is made of cast steel, so that the second fastening bolt is further kept not to be loosened through the firmness of the key block.

Furthermore, the inner wall of the key groove is radially provided with a threaded hole along the second fastening bolt, one end, far away from the threaded hole, of the key block is provided with a fastening screw, one end of the fastening screw penetrates through the key block and extends into the threaded hole, and the surface of the fastening screw is in threaded connection with the inner wall of the threaded hole, so that the key block is stably fixed inside the key groove.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model adopts the wedge-shaped arrangement of the wire clamp shell and the clamping plate, so that the clamping force of the wire clamp is enhanced, and the anti-slip strip is arranged between the wire clamp and the cable to ensure the anti-slip clamping, thereby preventing dislocation during installation; through being provided with key piece and fastening screw, guarantee that fastening bolt two can not cause nut one not hard up when receiving the vibration, increase stability.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an overall left side sectional view of the present invention;

fig. 2 is a schematic view of the overall front structure of the present invention;

fig. 3 is an overall front cross-sectional view of the present invention;

fig. 4 is an overall plan view of the present invention;

fig. 5 is an enlarged view of the region a in fig. 1 according to the present invention.

In the figure: 1, a wire clamp shell; 2 a front housing; 3, a rear shell; 4, clamping plates; 5, an upper clamping plate; 6, a lower splint; 7 a cable; 8, anti-slip strips; 9 fixing the column; 10, a limiting disc; 11, a clamping plate; 12 fastening a first bolt; 13 fixing the plate; 14 fastening a second bolt; 15, first nut; 16 key grooves; 17 a threaded hole; 18 key blocks; 19 to tighten the screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an overhead power line cable clamp comprises a cable clamp shell 1 and a cable 7, wherein the cable clamp shell 1 is arranged in a hollow manner, the cable clamp shell 1 is formed by a front shell 2 and a rear shell 3 which are arranged in a split manner, the front shell 2 and the rear shell 3 are symmetrically distributed in the front and the rear direction, a clamping plate 4 is arranged in the cable clamp shell 1, the cable clamp shell 1 and the clamping plate 4 are arranged in a wedge manner, the left side is narrow, the right side is wide, the clamping plate 4 is made of aluminum alloy, the surface of the clamping plate 4 is in contact with the inner wall of the cable clamp shell 1, the clamping plate 4 is formed by an upper clamping plate 5 and a lower clamping plate 6 which are arranged in a split manner, the upper clamping plate 5 and the lower clamping plate 6 are symmetrically distributed in the up and down direction, the right end of the cable 7 penetrates through the cable clamp shell 1 and the clamping plate 4 and extends to the right side of the cable clamp, the front surface of a fixed column 9 is fixedly connected with the back surface of a limiting disc 10, the surface of the fixed column 9 is rotationally connected with the inner wall at the left end of a clamping plate 11, the back surface of a rear shell 3 is symmetrically arranged with a front shell 2, the right ends of two clamping plates 11 are fixedly connected with each other through a fastening bolt I12, the utility model adopts that a cable clamp shell 1 and a clamping plate 4 are both in wedge-shaped arrangement, so that the clamping force of a cable clamp is enhanced, an anti-slip strip 8 is arranged between the cable clamp and a cable 7 to ensure anti-slip clamping, dislocation can be prevented during installation, a group of fixing plates 13 are vertically arranged on the top surface of the cable clamp shell 1, two groups of fixing plates 13 are arranged below the cable clamp shell 1, one group of fixing plates 13 positioned above is two, the two fixing plates 13 above are arranged in front and back, the bottom surfaces of the two fixing, the front end of a second fastening bolt 14 penetrates through two upper fixing plates 13 to be in threaded connection with a first nut 15, a gasket and a spring plate are arranged between the second fastening bolt 14 and the rear fixing plate 13 at the upper end, the internal thread of the first nut 15 is matched with the external thread of the second fastening bolt 14, a key groove 16 is formed in the surface of the second fastening bolt 14 along the axial direction of the second fastening bolt 14, grooves are formed in the inner walls of the upper two fixing plates 13 and the inner wall of the first nut 15 corresponding to the key groove 16, the key groove 16 and the front end of each groove are opened, a key block 18 is arranged inside the key groove 16, the length of the key block 18 is equal to that of the key groove 16, the key block 18 is made of cast steel, the surface of the key block 18 is in sliding connection with the inner wall of the key groove 16 and the inner wall of the groove, a threaded hole 17 is, the surface of the fastening screw 19 is in threaded connection with the inner wall of the threaded hole 17, the group of fixing plates 13 located below and the group of fixing plates 13 located above are arranged in the same mode, and the key block 18 and the fastening screw 19 are arranged, so that the first nut 15 is prevented from loosening when the second fastening bolt 14 is vibrated, and the accident probability is reduced.

The utility model discloses a theory of operation: clamping the cable 7 between the upper clamping plate 5 and the lower clamping plate 6, clamping the front shell 2 and the rear shell 3 outside, fixing the right ends of the two clamping plates 11 on a tower through a first fastening bolt 12, tensioning the left end of the cable 7, matching the cable clamp shell 1 with the clamping plate 4, clamping the cable 7 through the anti-slip strip 8, avoiding slipping, connecting a second fastening bolt 14 with two sets of fixing plates 13 and a first nut 15 through threads, clamping the key block 18 into the key groove 16 and the groove, finally screwing the fastening bolt 19 into the threaded hole 17, and completely clamping the cable 7.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an overhead power line fastener, includes fastener shell (1) and cable (7), its characterized in that: the inside cavity of fastener shell (1) sets up, fastener shell (1) sets up for preceding shell (2) and back shell (3) components of a whole that can function independently, symmetric distribution around preceding shell (2) and back shell (3), inside splint (4) that are provided with of fastener shell (1), splint (4) surface and fastener shell (1) inner wall contact, splint (4) set up for punch holder (5) and lower plate (6) components of a whole that can function independently, punch holder (5) and lower plate (6) longitudinal symmetry distribute, fastener shell (1) top surface is vertical to be provided with a set of fixed plate (13), fixed plate (13) are two sets of, another group fixed plate (13) set up below fastener shell (1), are located the top and a set of fixed plate (13) are two, two in the top fixed plate (13) set up around the fixed plate (13), two in the top fixed plate (13) bottom surface links to preceding shell (2) top surface and back shell (3) top surface are fixed respectively Connect, the top is two be provided with fastening bolt two (14) and nut (15) around fixed plate (13), fastening bolt two (14) front end runs through two fixed plate (13) in top and nut (15) threaded connection, fastening bolt two (14) surface has seted up keyway (16) along fastening bolt two (14) axial, and the top is two fixed plate (13) inner wall and nut (15) inner wall correspond keyway (16) position and have seted up the recess, keyway (16) and recess front end opening set up, keyway (16) inside is provided with key piece (18), key piece (18) surface and keyway (16) inner wall and recess inner wall sliding connection are located the below and are a set of fixed plate (13) and a set of fixed plate (13) the same setting in top.

2. The overhead power line clip of claim 1, wherein: the wire clamp comprises a wire clamp shell (1) and a clamping plate (4), wherein the wire clamp shell (1) and the clamping plate (4) are arranged in a wedge shape with a narrow left side and a wide right side, and are made of aluminum alloy.

3. The overhead power line clip of claim 1, wherein: cable (7) right-hand member runs through fastener shell (1) and splint (4) and extends to fastener shell (1) right side, cable (7) surface and splint (4) inner wall position of contacting are provided with antislip strip (8), antislip strip (8) evenly set up in punch holder (5) bottom surface and lower plate (6) top surface.

4. The overhead power line clip of claim 1, wherein: the front side of the front shell (2) is fixedly connected with the back side of the fixing column (9), the front side of the fixing column (9) is fixedly connected with the back side of the limiting disc (10), the surface of the fixing column (9) is rotatably connected with the inner wall of the left end of the clamping plate (11), the back side of the rear shell (3) is symmetrically arranged with the front shell (2), and the right ends of the two clamping plates (11) are fixedly connected through a first fastening bolt (12).

5. The overhead power line clip of claim 1, wherein: a gasket and an elastic sheet are arranged between the second fastening bolt (14) and the upper end rear fixing plate (13), and the internal thread of the first nut (15) is matched with the external thread of the second fastening bolt (14).

6. The overhead power line clip of claim 1, wherein: the length of the key block (18) is equal to that of the key groove (16), and the key block (18) is made of cast steel.

7. The overhead power line clip of claim 1, wherein: the inner wall of the key groove (16) is radially provided with a threaded hole (17) along a second fastening bolt (14), one end, far away from the threaded hole (17), of the key block (18) is provided with a fastening screw (19), one end of the fastening screw (19) penetrates through the key block (18) and extends to the inside of the threaded hole (17), and the surface of the fastening screw (19) is in threaded connection with the inner wall of the threaded hole (17).