阅读说明：本技术 一种高空电缆连接器及其连接方法 (High-altitude cable connector and connecting method thereof ) 是由 曲国辉 刘艮东 于 2021-08-20 设计创作，主要内容包括：本发明提供一种高空电缆连接器,包括结构相同并互相对称的左连接体与右连接体,以及由上至下依次连接在左连接体与右连接体之间的软导线、铰杆、缓冲弹簧；所述左连接体与右连接体分别都由上套管、下套管、锁定装置、顶盖、导电螺钉、压紧装置、压紧套构成；所述软导线两端分别接有金属环,金属环通过导电螺钉压紧在顶盖顶部的金属导电片上；所述铰杆两端分别铰接在左连接体上套管的上端与右连接体上套管的上端,铰杆中部断开并通过销杆铰接在一起；所述缓冲弹簧两端分别固定在左连接体上套管的下端与右连接体上套管的下端。本发明不仅能将两根电缆牢固连接,而且能够有效缓冲电缆的收缩与拉伸,抗拉伸能力强。(The invention provides a high-altitude cable connector, which comprises a left connector and a right connector which have the same structure and are mutually symmetrical, and a flexible lead, a hinge rod and a buffer spring which are sequentially connected between the left connector and the right connector from top to bottom; the left connector and the right connector respectively comprise an upper sleeve, a lower sleeve, a locking device, a top cover, a conductive screw, a pressing device and a pressing sleeve; two ends of the flexible lead are respectively connected with a metal ring, and the metal rings are tightly pressed on the metal conductive sheet on the top of the top cover through conductive screws; the two ends of the hinge rod are respectively hinged to the upper end of the sleeve on the left connecting body and the upper end of the sleeve on the right connecting body, and the middle part of the hinge rod is disconnected and hinged together through a pin rod; and two ends of the buffer spring are respectively fixed at the lower end of the upper sleeve of the left connector and the lower end of the upper sleeve of the right connector. The invention not only can firmly connect two cables, but also can effectively buffer the contraction and the stretching of the cables, and has strong tensile resistance.)

1. A high-altitude cable connector is characterized by comprising a left connector and a right connector which have the same structure and are mutually symmetrical, and a flexible lead, a hinge rod and a buffer spring which are sequentially connected between the left connector and the right connector from top to bottom; the left connector and the right connector respectively comprise an upper sleeve, a lower sleeve, a locking device, a top cover, a conductive screw, a pressing device and a pressing sleeve; the upper sleeve and the lower sleeve are hollow pipe bodies with openings at two ends, and the inner side of the bottom end of the upper sleeve is hinged with the inner side of the top end of the lower sleeve; the lower sleeve can rotate outwards by 90 degrees by taking a hinge point as an axial direction, and the outer side of the upper sleeve and the outer side of the lower sleeve are butted and locked by a locking device to form an L-shaped structure with the upper sleeve; the top cover is in threaded connection with the top of the upper sleeve, and the middle of the top cover is a metal conducting strip; the conductive screw is in threaded connection with the metal conductive sheet of the top cover and can be screwed into the upper sleeve downwards and then inserted into the cable core; the pressing devices are multiple and are respectively arranged on the upper sleeve and the lower sleeve body to press the cable in the upper sleeve and the lower sleeve; the pressing sleeve is in threaded connection with the lower end of the lower sleeve and can press the cable in the lower sleeve; two ends of the flexible lead are respectively connected with a metal ring, and the metal rings are tightly pressed on the metal conductive sheet on the top of the top cover through conductive screws; the two ends of the hinge rod are respectively hinged to the upper end of the sleeve on the left connecting body and the upper end of the sleeve on the right connecting body, and the middle part of the hinge rod is disconnected and hinged together through a pin rod; and two ends of the buffer spring are respectively fixed at the lower end of the upper sleeve of the left connector and the lower end of the upper sleeve of the right connector.

2. The high-altitude cable connector as claimed in claim 1, wherein the locking means is composed of an upper connecting plate, a lower connecting plate, a locking bolt and a nut; the upper connecting plate is fixed on the outer side of the lower end of the upper sleeve; the lower connecting plate is fixed on the outer side of the upper end of the lower sleeve; butt-joint holes are formed in the upper connecting plate and the lower connecting plate; when the lower sleeve rotates 90 degrees outwards by taking a hinged point as an axial direction, the upper connecting plate and the lower connecting plate are overlapped up and down, the butt joint holes of the upper connecting plate and the lower connecting plate are aligned and communicated with each other, at the moment, the locking bolt penetrates through the butt joint holes of the upper connecting plate and the lower connecting plate, and the upper connecting plate is connected with the lower connecting plate after the nut is screwed on, so that the upper sleeve and the lower sleeve are locked.

3. The high-altitude cable connector as claimed in claim 2, wherein the upper connecting plate and the lower connecting plate are triangular plates.

4. The high-altitude cable connector as claimed in claim 1, wherein the conductive screw has a cylindrical upper section with threads and a conical lower section.

5. The high-altitude cable connector as claimed in claim 1, wherein the upper sleeve and the lower sleeve are three layers of tubes, wherein the inner layer of tube is made of insulating material, the middle layer of tube is made of metal material, and the outer layer is a corrosion-resistant material coating; the inner layer of the upper sleeve extends upwards and exceeds the middle layer and the outer layer of the upper sleeve, and the outer side of the exceeding part of the upper sleeve is provided with an external thread; the middle layer and the outer layer of the lower sleeve extend downwards and exceed the inner layer of the lower sleeve, and the inner side surface of the outer layer of the lower sleeve is provided with internal threads; the outer part of the top cover is made of insulating materials and is in threaded connection with the excess part of the inner layer of the upper sleeve.

6. The high-altitude cable connector as claimed in claim 5, wherein the compressing sleeve is composed of an inner cylinder and an outer cylinder; the outer side surface of the inner cylinder is provided with an external thread matched with the internal thread of the inner layer of the upper sleeve, and the wall of the inner cylinder is provided with a plurality of expansion strips which can be pressed into the inner cylinder by the lower sleeve to compress the cable; the outer barrel is in threaded connection with the outer part of the lower sleeve.

7. The high-altitude cable connector as claimed in claim 5, wherein one or two compression devices are respectively arranged on the upper sleeve and the lower sleeve, and each compression device is composed of a mounting tube and a compression screw; the mounting pipe is respectively and vertically fixed on the inner pipe body of the upper sleeve and the inner pipe body of the lower sleeve; the mounting pipe is composed of two layers of outer layer pipe bodies, the outer layer of the mounting pipe body is made of insulating materials, and the inner layer of the mounting pipe body is made of metal materials; the compression screw is in threaded connection with the inside of the mounting pipe and extends into the upper sleeve or the lower sleeve.

8. The high-altitude cable connector as claimed in claim 7, wherein an access metal inner tube is provided in the upper sleeve at a position corresponding to the pressing means; after the cable extends into the upper sleeve, the cable further penetrates through the metal inner pipe and enters the upper part of the metal inner pipe.

9. A method for connecting a high-altitude cable connector according to any one of claims 1-8, comprising the steps of:

s1, respectively peeling connecting ends of two cables, wherein the peeling length is one half to four fifths of the length of an upper sleeve;

s2, unlocking the locking device to enable the lower sleeves of the left connector and the right connector to rotate to positions parallel to the upper sleeve;

s3, inserting the two cables peeled in the step S1 into the left connecting body and the right connecting body respectively, wherein the cables sequentially penetrate through the lower sleeve and the upper sleeve during insertion until the upper ends of the cables are contacted with the metal conducting strips of the top cover;

s4, screwing down the pressing device on the upper sleeve to press the cable in the upper sleeve;

s5, rotating the lower sleeve outwards until the lower sleeve is vertical to the upper sleeve, and then butting and locking the outer side of the upper sleeve with the outer side of the lower sleeve by using a locking device;

s6, screwing the pressing sleeve to press the cable in the lower sleeve; then, a pressing device on the lower sleeve is screwed down, and the cable is further pressed in the lower sleeve;

s7, respectively sleeving the metal rings connected with the two ends of the flexible lead on the conductive screws of the left connector and the right connector, respectively screwing the conductive screws, tightly pressing the metal rings on the metal conductive sheet on the top of the top cover by using the conductive screws, and simultaneously inserting the conductive screws into the upper sleeve and into the middle of the cable to be connected with the cable; i.e. the butt joint of the cables is completed.

Technical Field

The invention belongs to the technical field of manufacturing of power transmission equipment, and particularly relates to a high-altitude cable connector and a connecting method thereof.

Background

When two cables erected in the air are butted, part of insulation skins of the two cables are usually stripped, the two cables are fixed together through a connector, the cables are erected in the air mostly, so the cables swing in the strong wind and rainstorm weather, the two cables can also shrink and stretch to deform when the external temperature changes sharply, the existing connecting box is poor in connecting effect, when the strong wind and rainstorm weather or the external temperature changes sharply, the two cables are likely to be separated from the connector, power failure is caused, and even safety accidents can occur.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a high-altitude cable connector and a connection method thereof, which can firmly connect two cables, effectively buffer the contraction and extension of the cables, and have strong tensile resistance.

The purpose of the invention is realized by the following technical scheme:

a high-altitude cable connector comprises a left connector and a right connector which have the same structure and are mutually symmetrical, and a flexible lead, a hinge rod and a buffer spring which are sequentially connected between the left connector and the right connector from top to bottom; the left connector and the right connector respectively comprise an upper sleeve, a lower sleeve, a locking device, a top cover, a conductive screw, a pressing device and a pressing sleeve; the upper sleeve and the lower sleeve are hollow pipe bodies with openings at two ends, and the inner side of the bottom end of the upper sleeve is hinged with the inner side of the top end of the lower sleeve; the lower sleeve can rotate 90 degrees outwards by taking a hinge point as an axial direction, and the outer side of the upper sleeve and the outer side of the lower sleeve are butted and locked by a locking device to form an L-shaped structure with the upper sleeve (at the moment, the bottom end of the upper sleeve is butted and folded with the top end of the lower sleeve); the top cover is in threaded connection with the top of the upper sleeve, and the middle of the top cover is a metal conducting strip; the conductive screw is in threaded connection with the metal conductive sheet of the top cover and can be screwed into the upper sleeve downwards and then inserted into the cable core; the pressing devices are multiple and are respectively arranged on the upper sleeve and the lower sleeve body to press the cable in the upper sleeve and the lower sleeve; the pressing sleeve is in threaded connection with the lower end of the lower sleeve and can press the cable in the lower sleeve; two ends of the flexible lead are respectively connected with a metal ring, and the metal rings are tightly pressed on the metal conductive sheet on the top of the top cover through conductive screws; the two ends of the hinge rod are respectively hinged to the upper end of the sleeve on the left connecting body and the upper end of the sleeve on the right connecting body, and the middle part of the hinge rod is disconnected and hinged together through a pin rod; and two ends of the buffer spring are respectively fixed at the lower end of the upper sleeve of the left connector and the lower end of the upper sleeve of the right connector.

Furthermore, the locking device consists of an upper connecting plate, a lower connecting plate, a locking bolt and a nut; the upper connecting plate is fixed on the outer side of the lower end of the upper sleeve; the lower connecting plate is fixed on the outer side of the upper end of the lower sleeve; butt-joint holes are formed in the upper connecting plate and the lower connecting plate; when the lower sleeve rotates 90 degrees outwards by taking a hinged point as an axial direction, the upper connecting plate and the lower connecting plate are overlapped up and down, the butt joint holes of the upper connecting plate and the lower connecting plate are aligned and communicated with each other, at the moment, the locking bolt penetrates through the butt joint holes of the upper connecting plate and the lower connecting plate, and the upper connecting plate is connected with the lower connecting plate after the nut is screwed on, so that the upper sleeve and the lower sleeve are locked.

Furthermore, the upper connecting plate and the lower connecting plate are triangular plates.

Furthermore, the upper half section of the conductive screw is a cylinder with threads, and the lower half section of the conductive screw is a conical body.

Furthermore, the upper sleeve and the lower sleeve are three layers of pipe bodies, wherein the inner layer pipe body is made of an insulating material, the middle layer pipe body is made of a metal material, and the outer layer is a corrosion-resistant material coating; the inner layer of the upper sleeve extends upwards and exceeds the middle layer and the outer layer of the upper sleeve, and the outer side of the exceeding part of the upper sleeve is provided with an external thread; the middle layer and the outer layer of the lower sleeve extend downwards and exceed the inner layer of the lower sleeve, and the inner side surface of the outer layer of the lower sleeve is provided with internal threads; the outer part of the top cover is made of insulating materials and is in threaded connection with the excess part of the inner layer of the upper sleeve.

Furthermore, the compressing sleeve consists of an inner cylinder and an outer cylinder; the outer side surface of the inner cylinder is provided with an external thread matched with the internal thread of the inner layer of the upper sleeve, and the wall of the inner cylinder is provided with a plurality of expansion strips which can be pressed into the inner cylinder by the lower sleeve to compress the cable; the outer barrel is in threaded connection with the outer part of the lower sleeve.

Furthermore, one or two pressing devices are respectively arranged on the upper sleeve and the lower sleeve, and each pressing device consists of an installation pipe and a pressing screw; the mounting pipe is respectively and vertically fixed on the inner pipe body of the upper sleeve and the inner pipe body of the lower sleeve; the mounting pipe is composed of two layers of outer layer pipe bodies, the outer layer of the mounting pipe body is made of insulating materials, and the inner layer of the mounting pipe body is made of metal materials; the compression screw is in threaded connection with the inside of the mounting pipe and extends into the upper sleeve or the lower sleeve.

Furthermore, an inner metal pipe is arranged in the upper sleeve pipe at a position corresponding to the compressing device; after the cable extends into the upper sleeve, the cable further penetrates through the metal inner pipe and enters the upper part of the metal inner pipe. The metal inner tube is arranged to further play a role in fixing and preventing the cable from falling off, the peeled cable upwards penetrates through the metal inner tube and extends to the upper portion of the metal inner tube, the non-peeled portion is located below the metal inner tube, after the conductive screw is inserted into the cable (the cable is combined by a plurality of thin wires at the rear side), the thin wires at the end portion of the cable can be outwards diffused and contacted with the inner wall of the upper sleeve, the conductive screw and the inner wall of the upper sleeve are compressed tightly under the combined action, at the moment, the outer diameter of the cable at the upper portion of the metal inner tube is expanded and is larger than the inner diameter of the metal inner tube, and then the metal inner tube and the conductive screw act together to further limit the downward movement of the cable.

A method for connecting a high-altitude cable connector, comprising the following steps:

s1, peeling the connecting ends of the two cables respectively, wherein the peeling length is one half to four fifths of the length of the upper sleeve.

S2, unlocking the locking device to enable the lower sleeves of the left connecting body and the right connecting body to rotate to be parallel to the upper sleeve.

And S3, inserting the two cables peeled in the step S1 into the left connecting body and the right connecting body respectively, wherein the cables sequentially penetrate through the lower sleeve and the upper sleeve during insertion until the upper ends of the cables are contacted with the metal conducting strips of the top cover.

S4, tightening the pressing device on the upper sleeve to press the cable in the upper sleeve.

S5, the lower sleeve is rotated outwards until the lower sleeve is vertical to the upper sleeve, and then the outer side of the upper sleeve is butted and locked with the outer side of the lower sleeve by a locking device.

S6, screwing the pressing sleeve to press the cable in the lower sleeve; then the pressing device on the lower sleeve is screwed down, and the cable is further pressed in the lower sleeve.

S7, respectively sleeving the metal rings connected with the two ends of the flexible lead on the conductive screws of the left connector and the right connector, respectively screwing the conductive screws, tightly pressing the metal rings on the metal conductive sheet on the top of the top cover by using the conductive screws, and simultaneously inserting the conductive screws into the upper sleeve and into the middle of the cable to be connected with the cable; i.e. the butt joint of the cables is completed.

The invention not only can firmly connect two cables, but also can effectively buffer the contraction and the stretching of the cables, and has strong anti-stretching capability; after two cables are installed in the two L-shaped pipe bodies and fixed, the transverse tension applied to the cables is transferred to the L-shaped pipe bodies through connecting the springs between the two L-shaped pipe bodies, and the cables are further buffered by the springs, so that the connecting effect of the connector is effectively improved, and the probability of disengaging the cables from the connector is greatly reduced.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a high-altitude cable connector according to the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic structural view of the high-altitude cable connector according to the present invention when a cable is inserted for connection and fixation;

FIG. 4 is a cross-sectional view of FIG. 3;

fig. 5 is a schematic structural diagram of the high-altitude cable connector of the present invention when completing the fixing of the cable connection;

FIG. 6 is a cross-sectional view of FIG. 5;

shown in the figure: 1-upper sleeve, 2-lower sleeve, 3-butt joint hole, 4-upper connecting plate, 5-lower connecting plate, 6-locking bolt, 7-top cover, 8-conductive screw, 9-pressing device, 10-pressing sleeve, 11-flexible wire, 12-hinge rod, 13-buffer spring, 14-cable and 15-metal inner tube.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. The described embodiments are only some embodiments of the invention, not all embodiments. 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 understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1 to 6, the high-altitude cable connector of the present invention includes a left connector and a right connector which have the same structure and are symmetrical to each other, and a flexible wire 11, a hinge rod 12, and a buffer spring 13 which are sequentially connected between the left connector and the right connector from top to bottom.

The left connector and the right connector are respectively composed of an upper sleeve 1, a lower sleeve 2, a locking device, a top cover 7, a conductive screw 8, a pressing device 9 and a pressing sleeve 10.

The upper sleeve 1 and the lower sleeve 2 are hollow pipe bodies with openings at two ends, and the inner side of the bottom end of the upper sleeve 1 is hinged with the inner side of the top end of the lower sleeve 2 (the inner side refers to one side between the left connector and the right connector); the lower casing 2 can rotate 90 degrees outwards by taking the hinged point as the axial direction, and after the outer side of the upper casing 1 and the outer side of the lower casing 2 are butted and locked through the locking device (the lower casing 2) and the upper casing 1 form an L-shaped structure (at the moment, the bottom end of the upper casing 1 is butted and folded with the top end of the lower casing 2), the end surface of the bottom end of the upper casing 1 and the end surface of the top end of the lower casing 2 are mutually matched inclined planes, and after the lower casing 2 rotates 90 degrees outwards, the two end surfaces can be mutually attached. The upper casing 1 and the lower casing 2 are three layers of pipe bodies, wherein the inner layer pipe body is made of an insulating material (anti-creeping), the middle layer pipe body is made of a metal material (the integral strength is improved, and the hinge rod 12 and the buffer spring 13 are convenient to mount and fix), and the outer layer is a corrosion-resistant material coating (anti-rust and rain-proof erosion corrosion); the inner layer of the upper sleeve 1 extends upwards and exceeds the middle layer and the outer layer (namely the insulating layer length and the metal layer, and also for preventing electric leakage), and the outer side of the exceeding part is provided with an external thread; the middle layer and the outer layer of the lower sleeve 2 extend downwards and exceed the inner layer of the lower sleeve, and the inner side surface of the outer layer of the lower sleeve 2 is provided with internal threads (a space is reserved for pressing the pressing sleeve 10).

The locking device consists of an upper connecting plate 4, a lower connecting plate 5, a locking bolt 6 and a nut; the upper connecting plate 4 is fixed on the outer side of the lower end of the upper sleeve 1; the lower connecting plate 5 is fixed on the outer side of the upper end of the lower sleeve 2; the upper connecting plate 4 and the lower connecting plate 5 are both provided with butt joint holes 3; after the lower sleeve 2 rotates outwards by 90 degrees by taking a hinged point as an axial direction, the upper connecting plate 4 and the lower connecting plate 5 are overlapped up and down, the butt joint holes 3 of the upper connecting plate 4 and the lower connecting plate 5 are aligned and communicated with each other, at the moment, the locking bolt 6 penetrates through the butt joint holes 3 of the upper connecting plate 4 and the lower connecting plate 5, a nut is screwed on, and then the upper connecting plate 4 is connected with the lower connecting plate 5, so that the upper sleeve 1 and the lower sleeve 2 are locked. The upper connecting plate 4 and the lower connecting plate 5 are both set squares (right-angle set squares), and after the lower sleeve 2 rotates 90 degrees outwards by taking a hinged point as an axial direction, the two right-angle edges of the upper connecting plate 4 and the lower connecting plate 5 are respectively contacted with the upper sleeve 1 and the lower sleeve 2, so that the stability is high.

The top cover 7 is connected to the top of the upper sleeve 1 in a threaded manner, and the middle part of the top cover 7 is provided with a metal conducting strip (the metal conducting strip is fixed in the center of the top cover 7); the top cover 7 is made of insulating material and is screwed on the excess part (insulating inner pipe body) of the inner layer of the upper sleeve 1.

The conductive screw 8 is connected to the metal conductive sheet of the top cover 7 in a threaded manner and can be screwed down into the upper sleeve 1 and then inserted into the core of the cable 14. The upper half section of the conductive screw 8 is a cylinder with threads, and the lower half section is a conical body.

The pressing devices 9 are respectively mounted on the pipe bodies of the upper sleeve 1 and the lower sleeve 2 and then press the cables 14 into the upper sleeve 1 and the lower sleeve 2. One or two pressing devices 9 (both arranged in the middle part) are respectively arranged on the upper sleeve 1 and the lower sleeve 2, and each pressing device 9 consists of an installation pipe and a pressing screw; the mounting pipes are respectively and vertically fixed on the inner layer pipe body of the upper sleeve 1 and the inner layer pipe body of the lower sleeve 2; the mounting pipe is composed of two layers of outer layer pipe bodies, the outer layer of the mounting pipe body is made of insulating materials, and the inner layer of the mounting pipe body is made of metal materials; the compression screw is connected in the mounting pipe in a threaded manner and extends into the upper sleeve 1 or the lower sleeve 2.

The pressing sleeve 10 is screwed on the lower end of the lower sleeve 2 and can press the cable 14 in the lower sleeve 2. The pressing sleeve 10 consists of an inner cylinder and an outer cylinder; the outer side surface of the inner cylinder is provided with an external thread matched with the internal thread of the inner layer of the upper sleeve 1, and the wall of the inner cylinder is provided with a plurality of expansion strips which can be pressed into the inner cylinder by the lower sleeve 2 to compress the cable 14 tightly; the outer cylinder is in threaded connection with the outside of the lower sleeve 2.

The two ends of the flexible conductor 11 are respectively connected with a metal ring, the metal rings are tightly pressed on the metal conductive sheet on the top of the top cover 7 through conductive screws 8, and the flexible conductor 11 can be a flexible copper wire wrapped with an insulating layer.

The two ends of the hinge rod 12 are respectively hinged to the upper end of the sleeve 1 on the left connecting body and the upper end of the sleeve 1 on the right connecting body, and the middle part of the hinge rod 12 is disconnected and hinged together through a pin rod. The hinge rod 12 is V-shaped or inverted V-shaped.

And two ends of the buffer spring 13 are respectively fixed at the lower end of the sleeve 1 on the left connector and the lower end of the sleeve 1 on the right connector. The buffer spring 13 is a hard spring.

A method for connecting a high-altitude cable connector, comprising the following steps:

s1, the connecting ends of the two cables 14 are respectively peeled, and the peeling length is one half to four fifths of the length of the upper sleeve 1.

S2, unlocking the locking device to enable the lower sleeves 2 of the left connecting body and the right connecting body to rotate to the position parallel to the upper sleeve 1, namely the position shown in figures 1 and 3, so that the cables 14 can be conveniently inserted.

S3, inserting the two cables 14 peeled in the step S1 into the left connecting body and the right connecting body respectively; when the cable is inserted, each cable sequentially passes through the lower sleeve 2 and the upper sleeve 1 until the upper end of the cable 14 is contacted with the metal conducting strip of the top cover 7.

S4, the pressing device 9 on the upper sleeve 1 is tightened (the pressing screw is tightened), so that the pressing screw presses the cable 14 in the upper sleeve 1.

S5, the lower sleeve 2 is rotated outwards until the lower sleeve 2 is vertical to the upper sleeve 1, at the moment, the upper connecting plate 4 and the lower connecting plate 5 are overlapped up and down, the butt holes 3 of the upper connecting plate and the lower connecting plate are aligned and communicated with each other, and then the outer side of the upper sleeve 1 is butt-jointed and locked with the outer side of the lower sleeve 2 by using the locking bolt 6 and the nut of the locking device.

S6, screwing the pressing sleeve 10 to press the cable 14 in the lower sleeve 2; the compression means 9 on the lower casing 2 is then tightened further to compress the cable 14 within the lower casing 2.

S7, respectively sleeving the metal rings connected with the two ends of the flexible lead 11 on the conductive screws 8 of the left connector and the right connector, respectively screwing the conductive screws 8, tightly pressing the metal rings on the metal conductive sheet on the top of the top cover 7 by using the conductive screws 8, and simultaneously, inserting the conductive screws 8 into the upper sleeve 1 and connecting the middle of the cable core of the cable 14 with the middle of the cable core of the cable 14.

After the two cables 14 are installed into the left and right connectors according to the steps S3-S7, the cables are mated.

After the docking is completed, the cable 14 stretches or contracts at the connector when windy weather or a sudden change in temperature is encountered.

When stretching occurs, the cable 14 pulls the lower ends of the left and right connecting bodies to open outwards (meanwhile, the upper ends of the lower ends of the left and right connecting bodies are closed), and the stretching force of the cable 14 is buffered under the buffer action of the buffer spring 13. Because the left connector and the right connector form an L-shaped structure, and the end of the cable 14 in the left connector and the right connector is changed into an L-shaped structure, when the cable 14 is transversely pulled, the stretching force can act on the upper sleeve 1 (particularly the lower end of the upper sleeve 1), so that the upper sleeve 1 rotates outwards, and when the upper sleeve 1 rotates, the buffer spring 13 is pulled to deform, and under the elastic force action of the buffer spring 13, the stretching force is further buffered, so that the relative movement trend between the upper sleeve 1 and the cable 14 is relieved, and meanwhile, under the action of the pressing device 9 and the pressing sleeve 10, the cable 14 is more difficult to be separated from the left connector and the right connector.

When the cable is contracted, the cable 14 can drive the lower ends of the left connector and the right connector to be folded, impact force between the cables 14 is buffered under the buffering action of the buffer spring 13, and connection looseness is effectively prevented.

Example two:

the difference between this embodiment and the first embodiment is:

an inner metal pipe 15 is arranged in the upper sleeve 1 corresponding to the position of the pressing device 9; after the cable 14 has been inserted into the upper jacket tube 1, it is passed further through the inner metal tube 15 and over the inner metal tube 15. The arrangement of the metal inner tube 15 can further play a role in fixing and preventing the cable 14 from falling off, the peeled cable 14 penetrates the metal inner tube 15 upwards to extend above the metal inner tube 15, the part without peeling is limited to be positioned below the metal inner tube 15 by the metal inner tube 15, after the conductive screw 8 is inserted into the cable 14 (the cable 14 is combined by a plurality of thin wires at the rear side), the thin wires at the end part of the cable 14 can be diffused outwards and contacted with the inner wall of the upper sleeve 1, and are compressed under the combined action of the conductive screw 8 and the inner wall of the upper sleeve 1, at the moment, the outer diameter of the cable 14 at the part above the metal inner tube 15 is expanded to be larger than the inner diameter of the metal inner tube 15, and under the combined action of the metal inner tube 15 and the conductive screw 8, the downward movement of the cable 14 can be further limited.

It is to be noted that 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.

The scope of the present invention is not limited to the technical solutions disclosed in the embodiments, and any modifications, equivalent substitutions, improvements, etc. made to the above embodiments according to the technical spirit of the present invention fall within the scope of the present invention.