Full-automatic live-line connection device on high-capacity line

Abstract

The invention discloses a full-automatic electrified ignition device on a high-capacity circuit, which comprises two parallel groove clamps and a driving tool, and is characterized in that each parallel groove clamp comprises two clamping plates and two locking bolts; the two clamping plates on one side of the circuit are long clamping plates of an integrated structure, and the two clamping plates on the other side of the circuit are short clamping plates. The short clamping plate is provided with a kidney-shaped hole, and the locking bolt penetrates through the kidney-shaped hole to be in threaded connection with the long clamping plate. The length of the long clamping plate is greater than the sum of the lengths of the two short clamping plates; the two short clamping plates are arranged at the two ends of the elastic rubber strip respectively. The insulating rod is manually held by a hand to operate at a position far away from a high-voltage electric field, clamping installation of two clamping positions of a main line and a connecting line is completed at the same time, and the device has the advantages of being light in weight, easy and fast to operate and low in cost. Through the arrangement of the parallel groove clamp, the structural design of the tool is optimized, the lightweight design is achieved, and the total weight of the tool is small; the whole process is simple in operation, convenient in on-line and off-line operation, safe, time-saving, labor-saving and good in installation effect.

Description

Technical Field

[0001] The invention belongs to the technical field of cable installation, and in particular relates to a fully automatic live fire connection device on a large-capacity line. Background Art

[0002] With the development of economy and society, power users have higher and higher requirements for power supply reliability, especially the maintenance and transformation of 10kV overhead distribution lines, and live work is becoming more and more common. When the power department is doing overhead cable paralleling work, it needs to be done in an environment without power outages. It is very dangerous to manually install overhead cables close to them, which requires workers to have more advanced, safer and more convenient installation tools.

[0003] Most of the existing robots used for live-line work use J-type wire clamps, which generally only use one wire clamp and tighten the wire clamp with only one bolt, which is convenient for machine operation. Therefore, they are generally only used on small-capacity lines. However, the use of robots has strict requirements on the working scene and high requirements on the quality of the staff. Therefore, most of the live-line work is still done manually. The parallel groove wire clamps used in traditional manual work all use two bolts, and two wire clamps need to be used at a time. In order to make the cable and the drainage line have better conductivity and better mechanical connection characteristics, it is best to install two wire clamp groups at the connection between the cable and the drainage line, and each wire clamp is tightened with 2 bolts to form a parallel groove. However, the traditional manual action mode has a high risk factor for live-line work, high work intensity under the premise of wearing insulating clothing, and is time-consuming, labor-intensive and costly. It needs to be further improved.

[0004] The Chinese patent document with publication number CN214626096U discloses a wire clamp installation device suitable for fully automatic operation of distribution network, the wire clamp installation device includes a wire clamp, a wire clamp closing mechanism and a glue injection mechanism; the wire clamp includes a left clamp body, a right clamp body and two parallel connecting bolts, and the left clamp body and the right clamp body are arranged face to face on the connecting bolts; the wire clamp closing mechanism includes a sliding plate, a wire clamp closing motor and a gear set bit; the sliding plate is slidably installed on the base plate, and an elastic member for pulling the sliding plate toward the cable is arranged between the sliding plate and the base plate; the wire clamp closing motor and the gear set bit are both installed on the sliding plate, and the gear set bit is connected to the connecting bolt through a fixed torque nut; the glue injection mechanism includes a glue injection tube, a glue cylinder and an electric push rod; the glue cylinder is connected to the inside of the wire clamp through the glue injection tube; the electric push rod is connected to the glue cylinder to push the glue in the glue cylinder into the wire clamp.

[0005] In the above patent solution, only a single parallel groove wire clamp can be installed for lines with small capacity and low connection strength. For lines with large capacity and high connection strength requirements, two parallel groove wire clamps set at intervals are required to be installed. While increasing the power conduction efficiency, it also evenly distributes the tension of the conductor and reduces the stress concentration phenomenon that may occur in a single parallel groove wire clamp. If the above patent solution is used to install two parallel groove wire clamps in steps, since the locking bolts of the parallel groove wire clamps are located between the main line and the wiring, there is an interference problem with threading, and it also needs to be lifted up for operation, which is not conducive to manual control and obviously cannot meet the use requirements. If the above patent solution is deformed and the installation position of the parallel groove wire clamp is changed from one to two, not only will the two parallel groove wire clamps need to be installed on the above device separately during the preliminary preparation process, while increasing the operation steps, the volume and weight of the entire installation device will also increase significantly, which is not convenient for the operator's preliminary preparation and lifting operation.

[0006] More importantly, since the outer diameters of the main line and the wiring are slightly different and both have irregular curvatures, the two parallel groove clamps increase the wiring length, and the main line / wiring that the two parallel groove clamps need to clamp will be more differentiated. In order to ensure that the main line and the wiring can fully enter the wire trough of the two pairs of parallel groove clamps and fit completely, the four clamps in the two pairs of parallel groove clamps are required to be able to adapt to multi-directional relative movement. In view of this, if the activity margin of the two pairs of clamps is too high, it will be unfavorable for the position control of the clamps, and it will also be unfavorable for the use of automation devices; and if the activity direction or activity margin of the clamps is insufficient, the edge of the wire trough will be partially pressed against the main line / wiring, or the main line and the wiring will not be pressed at the same time. It will cause the wire trough to have insufficient fitting area with the main line / wiring, resulting in excessive local current load, and it will also become loose after long-term use, posing a safety hazard. Summary of the invention

[0007] In order to overcome the problem that large-capacity line wiring in the prior art requires two sets of parallel groove wire clamps to be set at intervals, the increase in the number of parallel groove wire clamps and the increase in wiring length will aggravate the influence of factors such as the main line / wiring outer diameter deviation and irregular curvature on the wiring effect of the parallel groove wire clamps, resulting in technical problems such as insufficient contact area or insufficient clamping force, and the two parallel groove wire clamps are not convenient for automated tool operation. One object of the present invention is to provide a fully automatic live connection device for large-capacity lines, by setting the two clamps on one side of the two pairs of parallel groove wire clamps into a long clamp of an integrated structure, and the two clamps on the other side are set as two short clamps connected by elastic rubber strips, which not only facilitates the installation and operation of automated tools, but also provides a margin of activity between the short clamps and the long clamps, thereby improving the wiring effect.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a fully automatic live connection device on a large-capacity line, comprising two parallel groove line clamps and a driving tool, the parallel groove line clamps comprising two opposite clamps and two locking bolts passing through the two clamps in sequence; the two clamps located on one side of the line are long clamps of an integral structure, and the two clamps located on the other side of the line are short clamps arranged separately; two waist-shaped holes are arranged on the short clamps, and the locking bolts pass through the corresponding waist-shaped holes and are threadedly connected to the long clamps; wherein the length of the long clamp is greater than the sum of the lengths of the two short clamps; the two short clamps are respectively arranged at both ends of an elastic rubber strip.

[0009] Furthermore, an arc-shaped plate is arranged on one side of the two short splints away from the long splint; an arc-shaped outer wall is arranged on one end of the short splint facing the arc-shaped plate; an arc-shaped inner cavity is arranged on one end of the arc-shaped plate facing the arc-shaped outer wall; the arc-shaped outer wall and the arc-shaped inner cavity are against each other and can rotate relatively.

[0010] The parallel groove wire clamp is designed as an integrated whole after assembly, which is convenient for clamping on the driving tool; the two short clamping plates have two independent clamping positions for the main line and the wiring, which can better distribute the tension of the wire and prevent stress concentration at a single clamping position; the two short clamping blocks have a large dynamic margin, and during the locking process of the locking bolt, the short clamping plates are movable to adapt to the main line and the wiring, ensuring the fit between the wire trough and the main line and the wiring, thereby improving the wiring effect.

[0011] Furthermore, one end of the arc plate away from the short clamping plate is detachably connected to a cover shell; a fixed torque sleeve is arranged between the cover shell and the arc plate; one end of the fixed torque sleeve located in the cover shell is transmission connected to the locking bolt, and the other end extends from the side of the cover shell away from the arc plate; an annular fracture groove recessed toward the middle is arranged in the middle part of the outer periphery of the fixed torque sleeve, and the annular fracture groove is located in the cover shell; the twisting torque of the annular fracture groove is greater than the clamping torque of the locking bolt.

[0012] The clamping force of the main line and the wiring should be no less than 10% of the breaking force of the wire according to the specification requirements, and the clamping torque of each screw is calculated; the fixed torque sleeve is rotated to tighten the fastening screw on the long clamping plate to achieve the clamping of the main line and the wiring; after the annular fracture groove is disconnected, the surface of the parallel groove line is smooth and has no protrusions, which avoids hanging on the driving tool and is also convenient for filling glue on the outside; when it needs to be disconnected or readjusted, the cover is removed, and after removing the fixed torque sleeve, the locking bolt is removed.

[0013] Optionally, an outer convex ring is provided on the outer periphery of the constant torque sleeve, and the outer convex ring is located on a side of the cover shell away from the arc plate.

[0014] Optionally, a square hole is coaxially arranged in the middle of the constant torque sleeve; the square hole passes through the middle of the annular fracture groove.

[0015] The outer convex ring and the square hole facilitate the removal of the broken constant torque sleeve from the driving tool.

[0016] Preferably, a cutting ring is provided on the outer wall of the locking bolt; four through holes are provided on the rubber strip; the cutting ring is located in the through holes; and the radial length of the cutting ring is greater than the thickness of the rubber strip.

[0017] The driving tool includes a mounting plate provided with an insulating rod, a lower supporting plate provided at the lower part of the mounting plate, and a locking portion provided at the upper part of the mounting plate; the locking portion includes four long sleeves rotatably connected to the mounting plate and a locking motor provided on the mounting plate and transmission connected to the four long sleeves; wherein a positioning groove is provided at the upper end of the lower supporting plate; a convex strip is provided at one end of the long clamping plate away from the short clamping plate; the convex strip is detachably connected in the positioning groove; the fixed torque sleeve is detachably connected in the corresponding long sleeve and transmission connected thereto.

[0018] The parallel groove wire clamp is located between the locking portion and the positioning groove, which can effectively prevent the parallel groove wire clamp from falling off during the lifting operation of the driving tool, thereby ensuring the safety of the operator below. At the same time, the position of the parallel groove wire clamp is stable, which is also convenient for wiring work and manual operation.

[0019] Furthermore, a wire clamping portion is provided on the mounting plate; the wire clamping portion includes an upper pressure clamp provided on the mounting plate, a lower pressure clamp slidably connected to the mounting plate, and a wire clamping motor provided on the mounting plate and transmission connected to the lower pressure clamp; wherein a tension spring is provided between the lower support plate and the mounting plate, and the elastic force of the tension spring is used to make the lower support plate slide toward the long sleeve; an extension rod is provided on the lower support plate, and the extension rod can selectively abut against the lower end of the lower pressure clamp.

[0020] The lower clamp and the upper clamp clamp the wiring and are lifted onto the main line together with the parallel groove clamp for wiring. After the wiring is completed, the lower clamp moves downward and presses down the lower support plate to separate it from the parallel groove clamp.

[0021] Specifically, the wire clamping part includes a screw rod rotatably connected to the mounting plate, and the screw rod is transmission-connected to the wire clamping motor; a screw nut threadably connected to the screw rod is arranged on the lower pressure clamp; and a hanging ring is arranged at the lower end of the screw rod.

[0022] When the driving tool fails to work due to a malfunction or other unexpected circumstances, a long rod with a hook can be lifted from the ground, inserted into the hanging ring, and the screw rod can be rotated to separate the driving tool from the main line.

[0023] Specifically, a hanging rod is provided at the upper end of the upper pressing clamp; a hanging groove is provided at the lower end of the hanging rod; and the spacing between the hanging groove and the upper pressing clamp is equal to the spacing between the two wire grooves in the clamping plate.

[0024] Compared with the prior art, the present invention has the following beneficial effects: 1. By manually holding the insulating rod and operating at a position far away from the high-voltage electric field, the clamping and installation of the main line and the connection are completed at the same time. It has the characteristics of light weight, simple and fast operation, and low cost. The driving tool not only reflects the convenience of automatic operation of the machine, but also retains the effect of simultaneous installation of double wire clamps in any complex working scene, which can only be completed manually.

[0025] 2. The present invention optimizes the structural design of the driving tool by setting the parallel groove wire clamp, achieving a lightweight design, and the total weight of the driving tool is less than 3kg; the overall process is simple to operate, the online and offline operations are convenient, safe, time-saving and labor-saving, and the installation effect is good.

[0026] 3. The short splint has a larger margin of activity than the long splint, which can adapt to the different outer diameters of the main line and the wiring, ensure that the main line and the wiring are compressed at the same time, and fully fit with a large enough contact area to improve the connection effect; at the same time, the integrated structure of the short splint and the long splint after assembly is also convenient for placement and installation on the drive tool and stable control of the position, which is convenient for the operator's preliminary preparation and lifting operation.

[0027] 4. During the installation process, the fixed torque sleeve provides sufficient clamping force for the long and short clamps and then breaks. The connection effect of the main line and the wiring can be guaranteed without setting up a detection device, and the structure is simple. At the same time, if dismantling or adjustment is required, it can also be dismantled after removing the fixed torque sleeve, which has greater flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the driving tool of the present invention; Figure 2 It is a schematic diagram of the exploded structure of two parallel groove clamps of the present invention; Figure 3 It is a structural schematic diagram of the constant torque sleeve of the present invention; Figure 4 It is a structural schematic diagram of the front side of the mounting plate and the wire clamping part of the present invention; Figure 5 It is a structural schematic diagram of the back side of the mounting plate and the wire clamping part of the present invention; Figure 6 It is a structural schematic diagram of the locking part of the present invention; Figure 7 It is a schematic diagram of the gear transmission cross-sectional structure of the locking part of the present invention; Figure 8 A schematic diagram of the structure of connecting the main line and the wiring during the use of the present invention; Fig. 9 It is a structural schematic diagram of the parallel groove wire clamp of the present invention without locking the main wire and the wiring; Fig.10 It is a schematic cross-sectional structure diagram of the parallel groove wire clamp of the present invention when the main wire and the wiring are not locked; Fig.11 It is a schematic diagram of the structure of the parallel groove wire clamp of the present invention for locking the main wire and the wiring; Fig.12 The present invention is a schematic cross-sectional view of the parallel groove wire clamp for locking the main wire and the wiring.

[0029] In the figure: 11, mounting plate; 12, lower support plate; 121, positioning groove; 122, U-shaped mouth; 123, extension rod; 13, insulating rod; 14, tension spring; 15, first slide rail; 16, second slide rail; 17, distance sensor; 18, power module; 19, insulating rod joint; 2, locking part; 21, long sleeve; 211, sleeve gear; 22, locking motor; 221, motor gear; 23, cooling fan; 24, transmission gear; 3, wire clamping part; 31, upper pressure clamp; 311, hanging rod; 312, hanging groove; 32, lower pressure clamp; 32 1. Screw nut; 33. Clamping motor; 34. Screw; 35. Hanging ring; 41. Long clamp; 411. Raised strip; 412. Threaded hole; 42. Short clamp; 421. Arc-shaped outer wall; 422. Waist-shaped hole; 423. Slot; 43. Rubber strip; 44. Cover; 45. Arc-shaped plate; 451. Arc-shaped inner cavity; 46. Locking bolt; 461. Cutting ring; 47. Constant torque sleeve; 471. External convex ring; 472. Annular fracture groove; 473. Square hole; 48. Closing screw; 49. Anti-loosening gasket; 51. Main line; 52. Wiring. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0031] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] See also Figure 1-Figure 12 A fully automatic live connection device for a large-capacity line comprises two parallel groove clamps and a fully automatic driving tool, wherein the parallel groove clamp comprises two opposite clamps and two locking bolts 46 passing through the two clamps in sequence; wherein the two clamps on one side of the line are long clamps 41 of an integral structure, and the two clamps on the other side of the line are short clamps 42 arranged separately; the length of the long clamp 41 is greater than the sum of the lengths of the two short clamps 42; the two ends of the long clamp 41 are respectively flush with the outer sides of the two short clamps 42; the two short clamps 42 are respectively arranged at the two ends of an elastic rubber strip 43.

[0035] An arc-shaped plate 45 is provided on one side of the two short clamps 42 away from the long clamps 41; an arc-shaped outer wall 421 is provided on the end of the short clamps 42 facing the arc-shaped plate 45; an arc-shaped inner cavity 451 is provided on the end of the arc-shaped plate 45 facing the arc-shaped outer wall 421; the arc-shaped outer wall 421 and the arc-shaped inner cavity 451 are abutted against each other and can rotate relatively; two waist-shaped holes 422 are provided on the short clamps 42; the locking bolts 46 pass through the corresponding waist-shaped holes 422; the end of the locking bolts 46 passes through the corresponding waist-shaped holes 422 and is threadedly connected to the long clamps 41; an anti-loosening gasket 49 is provided between the nut of the locking bolt 46 and the arc-shaped plate 45.

[0036] There is a gap between the two short clamps 42; a slot 423 is provided along the length direction of the short clamp 42 at one end facing the long clamp 41, and the slot 423 is located between the two wire grooves; the rubber strip 43 is inserted into the two slots 423 so that the two ends of the rubber strip 43 are relatively fixed to the short clamp 42.

[0037] The outer wall of the locking bolt 46 is provided with a cutting ring 461 ; the rubber strip 43 is provided with four through holes; the cutting ring 461 is located in the through holes; the length of the cutting ring 461 is equal to the thickness of the rubber strip 43 .

[0038] One end of the arc plate 45 away from the short clamp plate 42 is detachably connected to the cover shell 44 through a plurality of closing screws 48; four fixed torque sleeves 47 are arranged between the cover shell 44 and the arc plate 45; one end of the fixed torque sleeve 47 located in the cover shell 44 is provided with a hexagonal sleeve, and the other end is provided with a hexagonal column, and the other end extends from the side of the cover shell 44 away from the arc plate 45; the nut of the locking bolt 46 is located in the hexagonal sleeve to realize the transmission connection.

[0039] The fixed torque sleeve 47 is provided with an annular fracture groove 472 which is recessed toward the middle part in the outer periphery, and the annular fracture groove 472 is located in the housing 44; the fixed torque sleeve 47 is provided with an outer convex ring 471 on the outer periphery, and the outer convex ring 471 is located on the side of the annular fracture groove 472 away from the arc plate 45; the outer convex ring 471 is located on the outer side of the housing 44; the housing 44 is on the side away from the arc plate; the fixed torque sleeve 47 is provided with a square hole 473 coaxially in the middle part; the square hole 473 penetrates the annular fracture groove 472 and the outer convex ring 471. When the hexagonal column that is twisted off by the fixed torque sleeve 47 is left in the sleeve, the remaining hexagonal column can be conveniently taken out through the outer convex ring 471 or the square hole 473.

[0040] One end of the cable clamping of the long clamp plate 41 and the short clamp plate 42 is provided with two wire troughs covered with grooves; the number of clamp plates and locking bolts meets the requirements of the traditional parallel groove wire clamp operation method, and the gripping force is not less than 10% of the breaking force of the wire according to the specification requirements, and the tightening torque of each locking bolt is calculated to be not less than 4Nm. After the wire clamp clamps the main line and the wiring, the resistance at both ends is less than the resistance of the drainage line of the same length, and the measured tightening torque of 5Nm can be achieved. The present invention ensures that the tightening torque of each locking bolt is above 8Nm through the material and structural design of the fixed torque sleeve 47.

[0041] The driving tool includes a mounting plate 11, an insulating rod 13 arranged at the lower end of the mounting plate 11, a lower support plate 12 longitudinally slidably connected to the mounting plate 11, a locking portion 2 arranged above the lower support plate 12, and a wire clamping portion 3 arranged on the mounting plate 11.

[0042] A positioning groove 121 is provided at the upper end of the lower support plate 12; a convex strip 411 is provided at the end of the long clamp plate 41 away from the short clamp plate 42; the convex strip 411 is detachably connected to the positioning groove 121; four threaded holes 412 are provided on the long clamp plate 41, which are respectively threadedly connected to the corresponding locking bolts 46; the threaded holes 412 are located on the convex strip 411; four U-shaped openings 122 are provided on the end of the lower support plate 12 away from the mounting plate 11; the locking bolts 46 pass through the U-shaped openings 122.

[0043] The locking part 2 includes four long sleeves 21 rotatably connected to the mounting plate 11, a locking motor 22 arranged on the mounting plate 11, and a cooling fan 23 arranged on one side of the locking motor 22; the hexagonal column of the fixed torque sleeve 47 can be selectively inserted into the corresponding long sleeve 21. A sleeve gear 211 is coaxially arranged on the upper end of the long sleeve 21; a motor gear 221 is coaxially arranged on the output shaft of the locking motor 22; the sleeve gears 211 are arranged linearly and do not contact each other, and the motor gear 221 is connected to the two sleeve gears 211 located in the middle in a transmission manner; two transmission gears 24 are rotatably connected to the mounting plate 11; the transmission gears 24 are respectively connected to the two sleeve gears 211 located at both ends in a transmission manner, and the rotation direction of each long sleeve 21 is always consistent.

[0044] The wire clamping part 3 includes an upper clamp 31 arranged on the mounting plate 11, a lower clamp 32 longitudinally slidably connected to the mounting plate 11, a screw rod 34 rotatably connected to the mounting plate 11 and transmission connected to the lower clamp 32, and a wire clamping motor 33 arranged on the mounting plate 11 and transmission connected to the screw rod 34; a screw nut 321 threadedly connected to the screw rod 34 is arranged on the lower clamp 32; a hanging ring 35 is arranged at the lower end of the screw rod 34; the upper clamp 31 and the lower clamp 32 have two respectively; the lower support plate 12 is located between the two upper clamps 31 and between the two lower clamps 32.

[0045] A tension spring 14 is provided between the lower support plate 12 and the mounting plate 11, and the elastic force of the tension spring 14 is used to make the lower support plate 12 slide toward the locking portion 2; extension rods 123 are respectively provided at both ends of the lower support plate 12, and the extension rods 123 can be selectively abutted against the lower end of the lower pressure clamp 32.

[0046] A hanging rod 311 is arranged above the upper pressing clamp 31 ; a hanging groove 312 is arranged at the lower end of the hanging rod 311 ; the distance between the hanging groove 312 and the upper pressing clamp 31 is equal to the distance between the two wire grooves in the parallel groove clamp.

[0047] The front of the mounting plate 11 is longitudinally provided with two first slide rails 15 slidably connected to the lower support plate 12; the back of the mounting plate 11 is longitudinally provided with two second slide rails 16 slidably connected to the lower pressure clamp 32; the front of the mounting plate 11 is provided with a distance sensor 17 between the locking portion 2 and the lower support plate 12, which is used to detect the position of the lower pressure clamp 32; the back of the mounting plate 11 is provided with a power module 18. The lower end of the mounting plate 11 is provided with a plum blossom-shaped insulating rod joint 19, which can be installed on the insulating rod 13 at a certain angle.

[0048] Working process: the clamping motor 33 drives the screw rod 34 to rotate forward, driving the lower pressure clamp 32 to move downward. The downward movement of the lower pressure clamp 32 will abut against the extension rod 123 and synchronously drive it to slide downward, that is, the lower support plate 12 slides downward, and the tension spring 14 stretches and accumulates force. The convex strip 411 of the parallel groove wire clamp is placed in the positioning groove 121, and at the same time, the four fixed torque sleeves 47 are aligned with the long sleeve 21. The clamping motor 33 drives the screw rod 34 to rotate in the opposite direction to move the lower pressure clamp 32 upward, and the tension spring 14 drives the lower support plate 12 to slide upward. Until the hexagonal column of the fixed torque sleeve 47 completely enters the long sleeve 21, the fixed torque sleeve 47 can be rotated left and right to assist the operation during the process, and the parallel groove wire clamp is installed. Pass the stripped wiring 52 through the parallel groove wire clamp, and the wire core corresponds to the wire groove of the parallel groove wire clamp. The clamping motor 33 is rotated in the opposite direction again, so that the lower pressure clamp 32 and the upper pressure clamp 31 press the wiring 52 tightly.

[0049] Then, the insulating rod 13 is manually held, and the wiring 52 is lifted and hung on the main line 51, and the pre-stripped part of the main line 51 is placed in the parallel groove clamp; the locking motor 22 drives each long sleeve 21 to rotate so that each locking bolt 46 is screwed into the long clamp plate 41. When the locking force exceeds the corresponding standard torque, the fixed torque sleeve 47 breaks from the annular fracture groove 472, and the tightening process is completed.

[0050] Finally, the wire clamping motor 33 drives the screw rod 34 to rotate forward, driving the lower clamp 32 to move downward, and the lower clamp 32 drives the lower support plate 12 to move downward, and the wire clamp and the driving tool are separated. The driving tool can be removed from the line by manually holding the insulating rod 13, completing the entire operation process.

[0051] After the production line is removed, it is necessary to conveniently remove the twisted-off part of the fixed torque sleeve 47. When the fixed torque sleeve 47 and the long sleeve 21 rotate and shift due to excessive force during the twisting-off process, they may get stuck. Use a square (or flat) tool to insert it into the middle square hole 473. The jam can be released after reverse rotation. The protruding outer convex ring 471 on the screw sleeve is used to facilitate the removal of the screw sleeve component from the long sleeve 21 after the screw is twisted off.

[0052] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A fully automatic live connection device for a large-capacity line, comprising two parallel groove wire clamps and a driving tool, wherein the parallel groove wire clamps comprise two opposite clamping plates and two locking bolts passing through the two clamping plates in sequence; characterized in that: The two clamps located on one side of the line are long clamps of an integral structure, and the two clamps located on the other side of the line are short clamps arranged separately; two waist-shaped holes are arranged on the short clamps, and the locking bolts pass through the corresponding waist-shaped holes and are threadedly connected to the long clamps; wherein the length of the long clamp is greater than the sum of the lengths of the two short clamps; and the two short clamps are respectively arranged at both ends of the elastic rubber strip.

2. The live fire connection device according to claim 1, characterized in that; An arc plate is arranged on one side of the two short clamps away from the long clamps; an arc outer wall is arranged on one end of the short clamps facing the arc plate; an arc inner cavity is arranged on one end of the arc plate facing the arc outer wall; the arc outer wall and the arc inner cavity are against each other and can rotate relatively.

3. The live fire connection device according to claim 2, characterized in that: The end of the arc plate away from the short clamping plate is detachably connected to a cover shell; a fixed torque sleeve is arranged between the cover shell and the arc plate; one end of the fixed torque sleeve located in the cover shell is transmission connected to the locking bolt, and the other end extends from the side of the cover shell away from the arc plate; an annular fracture groove recessed toward the middle is arranged in the middle part of the outer periphery of the fixed torque sleeve, and the annular fracture groove is located in the cover shell; the twisting torque of the annular fracture groove is greater than the clamping torque of the locking bolt.

4. The live fire connection device according to claim 3, characterized in that: An outer convex ring is arranged on the outer periphery of the fixed torque sleeve, and the outer convex ring is located on a side of the cover shell away from the arc plate.

5. The live fire connection device according to claim 3, characterized in that: A square hole is coaxially arranged in the middle of the constant torque sleeve; the square hole passes through the middle of the annular fracture groove.

6. The live fire connection device according to claim 1, characterized in that: The outer wall of the locking bolt is provided with a cutting ring; the rubber strip is provided with four through holes; the cutting ring is located in the through holes; and the radial length of the cutting ring is greater than the thickness of the rubber strip.

7. The live fire connection device according to any one of claims 1 to 6, characterized in that: The driving tool includes a mounting plate provided with an insulating rod, a lower supporting plate provided at the lower part of the mounting plate, and a locking portion provided at the upper part of the mounting plate; the locking portion includes four long sleeves rotatably connected to the mounting plate and a locking motor provided on the mounting plate and transmission connected to the four long sleeves; wherein a positioning groove is provided at the upper end of the lower supporting plate; a convex strip is provided at one end of the long clamping plate away from the short clamping plate; the convex strip is detachably connected in the positioning groove; the fixed torque sleeve is detachably connected in the corresponding long sleeve and transmission connected thereto.

8. The live fire connection device according to claim 7, characterized in that: A wire clamping part is provided on the mounting plate; the wire clamping part includes an upper pressure clamp provided on the mounting plate, a lower pressure clamp slidably connected to the mounting plate, and a wire clamping motor provided on the mounting plate and transmission connected to the lower pressure clamp; wherein a tension spring is provided between the lower support plate and the mounting plate, and the elastic force of the tension spring is used to make the lower support plate slide toward the long sleeve; an extension rod is provided on the lower support plate, and the extension rod can selectively abut against the lower end of the lower pressure clamp.

9. The live fire connection device according to claim 8, characterized in that: The wire clamping part includes a screw rod rotatably connected to the mounting plate, and the screw rod is drivingly connected to the wire clamping motor; a screw rod nut threadably connected to the screw rod is arranged on the lower pressure clamp; and a hanging ring is arranged at the lower end of the screw rod.

10. The live fire connection device according to claim 8, characterized in that: A hanging rod is arranged at the upper end of the upper pressing clamp; a hanging groove is arranged at the lower end of the hanging rod; and the spacing between the hanging groove and the upper pressing clamp is equal to the spacing between the two wire grooves in the clamping plate.

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