Self-locking pressure buckle for repairing broken strands of power transmission lines

Abstract

The application discloses a self-locking pressing buckle for repairing broken strands of a power transmission line, comprising two rotating plates and a buckle mechanism, one end of the two rotating plates is hingedly connected with each other, the buckle mechanism comprises a first clamping part and a second clamping part, the first clamping part is arranged at a free end of one of the rotating plates, the second clamping part is arranged at a free end of the other rotating plate, the two rotating plates form a ring structure after being folded, the ring structure can press the broken strands on the power transmission line, and the first clamping part and the second clamping part are clamped to prevent the two rotating plates from being opened. The self-locking pressing buckle for repairing broken strands of a power transmission line has the self-locking function and prevents the two ends of the pressing buckle from being opened.

Description

Technical Field

[0001] The present invention relates to the technical field of repairing broken strands of power transmission lines, and in particular to a self-locking buckle for repairing broken strands of power transmission lines. Background Art

[0002] The existing power transmission line broken strand repair robot can refer to the patent application number CN2022203848900, which includes a wire pulling mechanism, a buckle mechanism and a clamping mechanism. When repairing a broken strand of a transmission line, the wire pulling mechanism pulls the broken strand onto the transmission line, the buckle mechanism buckles the buckle on the transmission line and the broken strand, and the clamping mechanism clamps the buckle. Figure 13 As shown, the buckle 91 is deformed to press the broken strand 92 onto the power transmission line 93 to prevent the broken strand from loosening.

[0003] The two ends of the existing buckle are not locked, and the broken strands are pressed against the transmission line by the rigidity of the material itself. When the transmission line shakes, the two ends of the buckle are easy to open, causing the broken strands to fall off the transmission line again. Summary of the Invention

[0004] In order to solve the shortcoming that both ends of the existing press buckle are easy to open, the present invention proposes a self-locking press buckle for repairing broken strands of power transmission lines, which has a self-locking function to prevent the two ends of the press buckle from opening.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A self-locking pressure buckle for repairing broken strands in a power transmission line comprises: two rotating plates and a snap mechanism; one end of the two rotating plates is hinged to each other; the snap mechanism comprises a first snap-fitting portion and a second snap-fitting portion, the first snap-fitting portion being arranged at the free end of one of the rotating plates, and the second snap-fitting portion being arranged at the free end of the other rotating plate; when the two rotating plates are closed, an annular structure is formed which can press the broken strand against the power transmission line; the first snap-fitting portion and the second snap-fitting portion are snapped together to prevent the two rotating plates from opening.

[0007] With the above arrangement, after the rotating plates are closed, the free ends of the two rotating plates are snapped together by the snap mechanism to achieve self-locking. The rotating plates are not easy to loosen, thereby improving the quality of broken strand repair.

[0008] Furthermore, the buckle also includes an elastic pad installed on the inner side of the rotating plate. After the two rotating plates are closed, the elastic pad presses the broken strands onto the transmission line.

[0009] Through the above arrangement, when there are errors in the processing of the rotating plate or the outer diameters of the transmission lines are different, the press buckle can also be used normally.

[0010] Furthermore, a mounting hole is provided on the rotating plate which passes through the inner and outer sides of the rotating plate, and the inner end of the mounting hole is narrowed to form a first limiting boss. The elastic pad includes an extrusion part and a limiting part fixedly connected to the outer side of the extrusion part. The extrusion part is fitted to the inner side of the rotating plate, and the limiting part is embedded in the mounting hole. A limiting annular groove is provided along the outer periphery of the limiting part, and the first limiting boss is inserted into the limiting annular groove.

[0011] The above arrangement prevents the limiting portion from being pulled out of the mounting hole, thereby preventing the elastic pad from falling off from the inner side of the rotating plate during the buckle mounting process.

[0012] Furthermore, the first clamping portion is U-shaped, and both ends of the first clamping portion are fixedly connected to the free end of the rotating plate, forming a bayonet between the first clamping portion and the rotating plate;

[0013] The second clamping part is an elastic body with one end fixedly connected to the free end of the rotating plate. The free end of the second clamping part protrudes outward to form a clamping head. The clamping head is provided with an inclined surface. When the two rotating plates are closed, the first clamping part squeezes the inclined surface to make the second clamping part elastically deform inward. After the clamping head enters the bayonet, the second clamping part restores outward, and the clamping head contacts the inner wall of the bayonet to prevent the buckle from opening.

[0014] Furthermore, the buckle also includes a rotating shaft and a sleeve, wherein one end of one rotating plate is fixedly connected to the rotating shaft, and one end of the other rotating plate is fixedly connected to the sleeve, and the sleeve rotating sleeve is arranged on the rotating shaft.

[0015] Furthermore, the first clamping portion includes a limiting rod and a connecting rod fixedly connected to both ends of the limiting rod, an end of the connecting rod away from the limiting rod is fixedly connected to the free end of the rotating plate, and a clamping opening is formed between the limiting rod, the connecting rod and the rotating plate;

[0016] The press buckle also includes a release mechanism, which includes: an elastic sheet and a slide; a second limit boss is provided on the side of the limit rod close to the bayonet, the elastic sheet is arranged in the bayonet, one end of the elastic sheet is fixedly connected between the limit rod and the second limit boss, a gap is formed between the other end of the elastic sheet and the limit rod, and the elastic sheet extends toward the hinged end of the rotating plate; the middle part of the slide is rotatably connected between the connecting rods and is located in the bayonet, and the free end of the rotating plate is provided with a limit surface facing the hinged end of the rotating plate;

[0017] The buckle includes a ready-to-engage state, an engaged state, a first ready-to-disengage state, and a second ready-to-disengage state; a limiting groove is provided along the outer circumference of the rotating shaft, a first limiting block is fixedly connected to the inner side of the shaft sleeve, and the first limiting block is slidably connected to the limiting groove;

[0018] When the buckle is in the ready-to-engage state, the first limiting block contacts one end of the limiting groove, the clamping head is close to the limiting rod, and is located on the side of the limiting rod away from the clamping mouth;

[0019] When the buckle is in the clamping state, one end of the slide plate faces the limiting rod and is located between the second limiting boss and the elastic sheet, the clamping head is clamped between the elastic sheet and the slide plate, and the other end of the slide plate is inclined toward the hinged end of the rotating plate;

[0020] When the buckle is in the first ready-to-release state, the clamping head presses one end of the slide plate so that the slide plate contacts the limiting surface, and the end of the elastic sheet away from the second limiting boss is located outside the slide plate;

[0021] When the buckle is in the second ready-to-release state, the clamping head squeezes the other end of the slide plate so that the elastic sheet contacts the slide plate, and the slide plate and the side of the limiting rod close to the hinge end of the rotating plate are basically flush.

[0022] Through the above arrangement, after the buckle that has fallen off the elastic pad is closed by the clamping mechanism, after the clamping mechanism releases the buckle, the buckle automatically opens under the action of the release mechanism, preventing the misuse of unqualified buckles and causing rework in the later stage.

[0023] Furthermore, one end of the slide plate close to the limiting rod is fixedly connected to a second limiting block. When the buckle is in the second ready-to-release state, the second limiting block contacts the side of the elastic piece away from the limiting rod.

[0024] With the above arrangement, in the second ready-to-release state of the buckle, when the elastic sheet supports the slide plate, the second limiting block abuts against the end of the elastic sheet to prevent the elastic sheet and the slide plate from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the buckle of the embodiment.

[0026] Figure 2 It is a front view of the buckle of the embodiment.

[0027] Figure 3 2 is a cross-sectional view of a press buckle according to an embodiment.

[0028] Figure 4 Schematic diagram of the embodiment of the press buckle being crimped onto the power transmission line.

[0029] Figure 5 Schematic diagram of unqualified press buckles pressed onto transmission lines.

[0030] Figure 6 Schematic diagram of a buckle according to another embodiment.

[0031] Figure 7 for Figure 6 Enlarged view of point A.

[0032] Figure 8 It is a schematic diagram of the clamping mechanism clamping the buckle to the ready-to-engage state.

[0033] Figure 9 This is a schematic diagram of the press buckle being crimped onto the transmission line.

[0034] Figure 10 It is a schematic diagram of the clamping mechanism clamping the buckle to the first ready-to-release state.

[0035] Figure 11 for Figure 10 Enlarged view of point B.

[0036] Figure 12 This is a schematic diagram of the buckle opening under the action of the tripping mechanism.

[0037] Figure 13 This is a schematic diagram of an existing press-fit buckle being crimped onto a transmission line. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0039] See also Figures 1 to 4 A self-locking pressure buckle for repairing broken strands in a transmission line comprises: two rotating plates 3 and a snap mechanism 4; one end of the two rotating plates 3 is hinged to each other; the snap mechanism 4 comprises a first snap portion 41 and a second snap portion 42, the first snap portion 41 being arranged at the free end of one of the rotating plates 3, and the second snap portion 42 being arranged at the free end of the other rotating plate 3. When the two rotating plates 3 are closed, an annular structure is formed that can press the broken strand against the transmission line 6. The first snap portion 41 and the second snap portion 42 are snapped together to prevent the two rotating plates 3 from opening.

[0040] With the above arrangement, after the rotating plates 3 are closed, the free ends of the two rotating plates 3 are snapped together by the snap mechanism 4 to achieve self-locking. The rotating plates 3 are not easily loosened, thereby improving the quality of broken strand repair.

[0041] In the present application, the two rotating plates 3 are basically arc-shaped structures, and the bending radius of the rotating plates 3 is adapted to the outer diameter of the transmission line 6 to be repaired; when repairing a broken strand, the repair robot places the buckle on the transmission line 6 and the broken strand, and the clamping mechanism clamps the buckle, so that the two rotating plates 3 are slowly closed until the first clamping portion 41 and the second clamping portion 42 are clamped together. The two rotating plates 3 press the broken strand tightly onto the transmission line 6. Relying on the connection function of the buckle mechanism 4, a closed annular structure is formed between the two rotating plates 3 and the buckle mechanism 4. The two rotating plates 3 are not easy to open. Compared with the existing open buckle, the buckle structure of the present application is more stable and has a self-locking function.

[0042] As an implementation method, the press buckle further includes an elastic pad 5 installed on the inner side of the rotating plate 3. After the two rotating plates 3 are closed, the elastic pad 5 presses the broken strands onto the transmission line 6.

[0043] Through the above arrangement, when there are errors in the processing of the rotating plate 3 or the outer diameters of the power transmission lines 6 are different, the press buckle can still be used normally.

[0044] In the present application, the elastic pad 5 is made of silicone material and has good elasticity; in reality, when there are errors in the processing of the rotating plate 3, or the outer diameters of the transmission line 6 are different, after the rotating plates 3 are closed, the elastic pad 5 on the inner side of the two rotating plates 3 can adaptively deform to squeeze the broken strands onto the transmission line 6.

[0045] As an implementation method, a mounting hole 31 is provided on the rotating plate 3, which passes through the inner and outer sides of the rotating plate 3. The inner end of the mounting hole 31 is narrowed to form a first limiting boss 32. The elastic pad 5 includes an extrusion portion 51 and a limiting portion 52 fixedly connected to the outer side of the extrusion portion 51. The extrusion portion 51 is attached to the inner side of the rotating plate 3, and the limiting portion 52 is embedded in the mounting hole 31. A limiting annular groove 53 is provided along the outer periphery of the limiting portion 52, and the first limiting boss 32 is snapped into the limiting annular groove 53.

[0046] The above arrangement prevents the limiting portion 52 from being pulled out of the mounting hole 31 , thereby preventing the elastic pad 5 from falling off from the inner side of the rotating plate 3 during the press-fit installation process.

[0047] The limiting part makes the extrusion part fit on the inner side of the rotating plate. After the buckle is pressed and installed on the transmission line, the extrusion part deforms adaptively to press the broken strands on the transmission line.

[0048] As an implementation method, the first clamping portion 41 is U-shaped, and both ends of the first clamping portion 41 are fixedly connected to the free end of the rotating plate 3, forming a bayonet 7 between the first clamping portion 41 and the rotating plate 3;

[0049] The second clamping portion 42 is an elastic body with one end fixedly connected to the free end of the rotating plate 3. The free end of the second clamping portion 42 protrudes outward to form a clamping head 43. The clamping head 43 is provided with an inclined surface 44. When the two rotating plates 3 are closed, the first clamping portion 41 squeezes the inclined surface 44 to elastically deform the second clamping portion 42 inward. After the clamping head 43 enters the bayonet 7, the second clamping portion 42 recovers outward, and the clamping head 43 contacts the inner wall of the bayonet 7 to prevent the buckle from opening.

[0050] In the present application, the clamping mechanism clamps the buckle, and when the two rotating plates 3 are closed, the elastic pad 5 presses the broken strand on the transmission line 6. When the rotating plates 3 continue to close, the elastic pad 5 deforms and slowly increases the pressure on the broken strand, and the clamping head 43 slowly approaches the first clamping portion 41. After the inclined surface 44 of the clamping head 43 contacts the first clamping portion 41, as the rotating plates 3 continue to close, the end of the second clamping portion 42 close to the clamping head 43 bends toward the transmission line 6 under the action of the inclined surface 44. When the clamping head 43 moves into the bayonet 7, the second clamping portion 42 recovers and is embedded in the bayonet 7. Figure 4After the clamping mechanism releases the buckle, the clamping head 43 presses against the inner wall of the bayonet 7 to achieve the clamping connection.

[0051] As an implementation method, the press buckle also includes a rotating shaft 8 and a sleeve 9, wherein one end of one rotating plate 3 is fixedly connected to the rotating shaft 8, and one end of the other rotating plate 3 is fixedly connected to the sleeve 9, and the sleeve 9 is arranged on the rotating shaft 8.

[0052] In the present application, in one of the rotating plates 3, one end of the rotating plate 3 is fixedly connected to the rotating shaft 8, and the other end of the rotating plate 3 is fixedly connected to the first clamping portion 41; in the other rotating plate 3, one end of the rotating plate 3 is fixedly connected to the shaft sleeve 9, and the other end of the rotating plate 3 is fixedly connected to the second clamping portion 42; one end of the two rotating plates 3 is hinged through the rotating shaft 8 and the shaft sleeve 9.

[0053] In another embodiment, see Figures 6 to 12 The first clamping portion 41 includes a limiting rod 411 and a connecting rod 412 fixedly connected to both ends of the limiting rod 411. One end of the connecting rod 412 away from the limiting rod 411 is fixedly connected to the free end of the rotating plate 3. The limiting rod 411, the connecting rod 412 and the rotating plate 3 form a bayonet 7.

[0054] The press buckle also includes a release mechanism 10, which includes: an elastic sheet 101 and a slide 102; a second limit boss 413 is provided on the side of the limit rod 411 near the bayonet 7, and the elastic sheet 101 is arranged in the bayonet 7, with one end of the elastic sheet 101 fixedly connected between the limit rod 411 and the second limit boss 413, and a gap is formed between the other end of the elastic sheet 101 and the limit rod 411, and extends toward the hinged end of the rotating plate 3; the middle part of the slide 102 is rotatably connected between the connecting rods 412 and is located in the bayonet 7, and the free end of the rotating plate 3 is provided with a limit surface 33 facing the hinged end of the rotating plate 3;

[0055] The buckle includes a ready-to-engage state, an engaged state, a first ready-to-detach state, and a second ready-to-detach state; a limiting groove 81 is provided along the outer circumference of the rotating shaft 8, and a first limiting block 91 is fixedly connected to the inner side of the sleeve 9, and the first limiting block 91 is slidably connected to the limiting groove 81;

[0056] When the buckle is in the ready-to-engage state, the first limiting block 91 contacts one end of the limiting groove 81, and the clamping head 43 is close to the limiting rod 411 and is located on the side of the limiting rod 411 away from the bayonet 7;

[0057] When the buckle is in the engaged state, one end of the slide 102 faces the limiting rod 411 and is located between the second limiting boss 413 and the elastic sheet 101. The clamping head 43 is clamped between the elastic sheet 101 and the slide 102. The other end of the slide 102 is tilted toward the hinged end of the rotating plate 3.

[0058] When the buckle is in the first ready-to-release state, the clamping head 43 presses one end of the slide 102 so that the slide 102 contacts the limiting surface 33, and the end of the elastic piece 101 away from the second limiting boss 413 is located outside the slide 102;

[0059] When the buckle is in the second ready-to-release state, the clamping head 43 squeezes the other end of the slide plate 102 so that the elastic sheet 101 contacts the slide plate 102, and the slide plate 102 and the side of the limiting rod 411 close to the hinge end of the rotating plate 3 are basically flush.

[0060] Through the above arrangement, after the buckle that falls off the elastic pad 5 is closed by the clamping mechanism, after the clamping mechanism releases the buckle, the buckle automatically opens under the action of the tripping mechanism 10, preventing the misuse of unqualified buckles and causing rework later.

[0061] In this application, the second limiting boss 413 prevents the end of the skateboard 102 close to the limiting rod 411 from rotating outward, and the elastic sheet 101 prevents the end of the skateboard 102 close to the limiting rod 411 from rotating inward, so that the skateboard 102 maintains an inclined state, that is, the end of the skateboard 102 close to the limiting rod 411 is between the elastic sheet 101 and the second limiting boss 413, which facilitates the clamping head 43 to be clamped into the clamping port 7.

[0062] In actual production, occasionally due to production factors, the elastic pad 5 is missing in the buckle, that is, the elastic pad 5 is not installed on one side or both sides of the buckle. When the clamping mechanism installs these unqualified buckles, the installation process is similar to the above process. Due to the lack of elastic pad 5, the rotating plate 3 will directly contact the power transmission line or the broken strand. After the clamping force of the clamping mechanism reaches the preset value, the clamping mechanism is released. Although the first clamping portion 41 and the second clamping portion 42 can still be clamped together, due to the lack of elastic pad 5, it is easy to cause the clamping force of the buckle on the broken strand to be small, or even Figure 5 , there is a gap between the rotating plate 3 and the transmission line 6. These situations all lead to the broken strand repair not meeting the standards.

[0063] When the buckle is not missing the elastic pad 5, that is, when the inner sides of the two rotating plates 3 are both provided with the elastic pad 5, the repair robot first buckles the buckle on the lower side of the transmission line 6 when installing the buckle. Figure 6, the first limit block 91 is at one end of the limit groove 81, the clamping mechanism 200 clamps the buckle, the two rotating plates 3 slowly rotate upward, the elastic pad 5 squeezes the transmission line 6, the clamping head 43 moves upward close to the bayonet 7, the first limit block 91 slides along the limit groove 81, and the buckle is in a waiting state. At this time, the clamping head 43 contacts the outer side of the first clamping portion 41, that is, the distance between the clamping head 43 and the bayonet 7 is very small, and the clamping head 43 only needs to move forward a little further to be able to engage with the bayonet 7; when the buckle is in the waiting state, the first limit block 91 contacts the other end of the limit groove 81, and the shaft sleeve 9 and the rotating shaft 8 will not be able to continue to rotate relative to each other, that is, the two rotating plates 3 cannot be easily closed. Figure 8 The material of the rotating plate 3 is the same as that of the second clamping portion 42, both of which have good elasticity. When the clamping mechanism continues to clamp and buckle, the two rotating plates 3 bend inward slightly and deform elastically. The elastic pad 5 presses the broken strands onto the transmission line 6, and the clamping head 43 is clamped into the bayonet 7. The clamping force of the clamping mechanism reaches the preset value. At this time, the clamping head 43 is still at the end of the slide 102 close to the limit rod 411. After the clamping mechanism is released, the clamping head 43 presses the elastic sheet 101 onto the limit rod 411. The limit rod 411 prevents the clamping head 43 from rotating outward, and the buckle is in a clamped state. Figure 9 .

[0064] When the elastic pad 5 is missing on one or both sides of the buckle, the clamping mechanism mistakenly buckles the unqualified buckle on the lower side of the transmission line 6. When the clamping mechanism clamps the buckle and causes the clamping head 43 to be clamped into the bayonet 7, at this time, due to the lack of the elastic pad 5, the pressure of the buckle on the transmission line 6 is small, and the clamping force of the clamping mechanism on the buckle still does not reach the preset value. The clamping mechanism will continue to clamp the buckle inward, that is, the rotating plate 3 will continue to bend inward, and the elastic potential energy of the rotating plate will increase to store energy for subsequent tripping. The clamping head 43 will slide When the plate 102 is in the middle, the clamping head 43 rotates the slide plate 102. During the rotation of the slide plate 102, the end of the slide plate 102 close to the limit rod 411 will squeeze the elastic sheet 101, and the elastic sheet 101 will bend elastically toward the limit rod 411. When the clamping head 43 moves to the other end of the slide plate 102, the clamping head 43 presses the slide plate 102 against the limit surface 33, and the end of the limit rod 411 close to the limit rod 411 passes through the elastic sheet 101 and disengages from the elastic sheet 101, and the elastic sheet 101 recovers. Figure 11The spring 331 is provided on the rotating plate 3 corresponding to the limit surface 33, and the stop surface is close to the limit surface 33 and faces the clamping head 43, and the stop surface can contact the clamping head 43 to prevent the clamping head 43 from continuing to move forward and leaving the slide. After the clamping force of the clamping mechanism reaches the preset value, the clamping mechanism releases the press buckle, the elastic potential energy of the rotating plate 3 begins to be released and rebounds outward, and the clamping head 43 moves away from the stop surface along the slide 102. After the clamping head 43 passes the middle of the slide 102, the clamping head 43 presses the end of the slide 102 on the elastic sheet 101, and the elastic sheet 101 supports the end of the slide 102. The press buckle is in the second waiting to be disengaged state, and as the rotating plate 3 continues to rebound outward, the clamping head 43 slides to the lower side of the limit rod 411 through the slide 102, and then leaves the bayonet 7. Figure 12 Under the action of the buckle's own gravity, the buckle will fall from the transmission line 6, reminding the operator that the crimping has failed, and preventing unqualified buckles from being crimped on the transmission line 6. The operator controls the repair robot to re-buckle and re-crimp.

[0065] As an implementation method, the end of the slide plate 102 close to the limiting rod 411 is fixedly connected to the second limiting block 103. When the buckle is in the second ready-to-release state, the second limiting block 103 contacts the side of the elastic sheet 101 away from the limiting rod 411.

[0066] With the above arrangement, in the second ready-to-release state of the buckle, when the elastic sheet 101 supports the slide plate 102 , the second limit block 103 abuts against the end of the elastic sheet 101 to prevent the elastic sheet 101 and the slide plate 102 from slipping.

[0067] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A self-locking buckle for repairing broken strands of power transmission lines, characterized in that: include: Two rotating plates, one ends of the two rotating plates are hinged to each other; A snap mechanism comprising a first snap-fitting portion and a second snap-fitting portion, wherein the first snap-fitting portion is provided at the free end of one of the rotating plates, and the second snap-fitting portion is provided at the free end of the other rotating plate. When the two rotating plates are closed, an annular structure is formed that can press the broken strand against the transmission line. The first snap-fitting portion and the second snap-fitting portion are engaged to prevent the two rotating plates from opening. The buckle further includes an elastic pad mounted on the inner side of the rotating plate, and when the two rotating plates are closed, the elastic pad presses the broken strands tightly against the transmission line; The first clamping portion is U-shaped, with both ends of the first clamping portion fixedly connected to the free end of the rotating plate, forming a bayonet between the first clamping portion and the rotating plate; the second clamping portion is an elastic body with one end fixedly connected to the free end of the rotating plate, and the free end of the second clamping portion protrudes outward to form a clamping head, and the clamping head is provided with an inclined surface; The first clamping portion includes a limiting rod and a connecting rod fixedly connected to both ends of the limiting rod, one end of the connecting rod away from the limiting rod is fixedly connected to the free end of the rotating plate, and the limiting rod, the connecting rod and the rotating plate form the clamping hole; The buckle further includes a release mechanism, and the release mechanism includes: an elastic sheet, wherein a second limiting boss is provided on one side of the limiting rod close to the bayonet, the elastic sheet is arranged in the bayonet, one end of the elastic sheet is fixedly connected between the limiting rod and the second limiting boss, a gap is formed between the other end of the elastic sheet and the limiting rod, and the elastic sheet extends toward the hinged end of the rotating plate; A skateboard, the middle part of which is rotatably connected between the connecting rods and is located in the bayonet, and the free end of the rotating plate is provided with a limiting surface facing the hinged end of the rotating plate; the buckle includes a waiting state, a clamping state, a first waiting state and a second waiting state.

2. A self-locking buckle for repairing broken strands of a power transmission line according to claim 1, characterized in that: The rotating plate is provided with a mounting hole that passes through the inner and outer sides of the rotating plate, and the inner end of the mounting hole is narrowed to form a first limiting boss. The elastic pad includes an extrusion portion and a limiting portion fixedly connected to the outer side of the extrusion portion. The extrusion portion is attached to the inner side of the rotating plate, and the limiting portion is embedded in the mounting hole. A limiting annular groove is provided along the outer periphery of the limiting portion, and the first limiting boss is clamped in the limiting annular groove.

3. The self-locking buckle for repairing broken strands of a power transmission line according to claim 1, characterized in that: When the two rotating plates are closed, the first clamping portion squeezes the inclined surface to cause the second clamping portion to elastically deform inward. After the clamping head enters the bayonet, the second clamping portion recovers outward, and the clamping head contacts the inner wall of the bayonet to prevent the buckle from opening.

4. A self-locking buckle for repairing broken strands of a power transmission line according to claim 3, characterized in that: The buckle also includes a rotating shaft and a sleeve, wherein one end of one rotating plate is fixedly connected to the rotating shaft, and one end of the other rotating plate is fixedly connected to the sleeve, and the sleeve rotating sleeve is arranged on the rotating shaft.

5. The self-locking buckle for repairing broken strands of a power transmission line according to claim 4, characterized in that: A limiting groove is provided along the outer circumference of the rotating shaft, a first limiting block is fixedly connected to the inner side of the shaft sleeve, and the first limiting block is slidably connected to the limiting groove; When the buckle is in a ready-to-engage state, the first limiting block contacts one end of the limiting groove, and the clamping head is close to the limiting rod and is located on the side of the limiting rod away from the clamping port; When the buckle is in the clamping state, one end of the slide faces the limiting rod and is located between the second limiting boss and the elastic sheet, the clamping head is clamped between the elastic sheet and the slide, and the other end of the slide is inclined toward the hinge end of the rotating plate; When the buckle is in the first ready-to-release state, the clamping head presses one end of the slide so that the slide contacts the limiting surface, and the end of the elastic sheet away from the second limiting boss is located outside the slide; When the buckle is in the second ready-to-release state, the clamping head squeezes the other end of the slide so that the elastic sheet contacts the slide, and the slide and the limiting rod are substantially flush with one side close to the hinge end of the rotating plate.

6. The self-locking buckle for repairing broken strands of a power transmission line according to claim 5, characterized in that: One end of the slide plate close to the limiting rod is fixedly connected to a second limiting block. When the buckle is in the second ready-to-release state, the second limiting block contacts the side of the elastic piece away from the limiting rod.

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