CN220896226U - Live repair mechanism for power transmission cable - Google Patents

Abstract

The utility model discloses an electrified repairing mechanism for a power transmission cable, which comprises a fixed block and a movable block, wherein a fixed supporting claw, an adjusting mechanism and an insulating rod are arranged on the fixed block, and a movable supporting claw and a plurality of guide rods are arranged on the movable block; the fixed support claw and the movable support claw have the same structure and comprise a groove-shaped plate main body, the groove-shaped plate main body comprises a bottom plate, a first side plate and a second side plate, a support plate is arranged at the end part of the first side plate, the support plate is parallel and opposite to the bottom plate, and the second side plate is used for being fixedly connected; the two supporting plates are arranged in parallel and opposite to each other; the guide rods are arranged along the direction of the vertical supporting plates and are inserted into the fixed blocks in a sliding manner; the adjusting mechanism is used for adjusting the position of the moving block relative to the fixed block; one end of the insulating rod is fixedly connected with the fixed block, and the other end of the insulating rod is used for being held by hand. Can strut C type elastic tube jacket clamp through two fagging, cooperation insulator spindle can be with C type elastic tube jacket clamp on insulated cable, wraps up damaged area, realizes long-range electrified restoration, need not the outage, convenient operation and safe convenient.

Description

Live repair mechanism for power transmission cable

Technical Field

The utility model relates to the technical field of cable damage repair, in particular to an electrified repair mechanism for a power transmission cable.

Background

At present, in the power transmission and distribution process, an insulated cable is generally adopted for an overhead line below 10kV, namely, an insulated rubber is wrapped outside a wire, the insulated rubber can be aged and damaged in the outdoor long-term use process, and potential safety hazards can exist when the insulated rubber is not repaired in time. The traditional repair mode needs to cut off the power supply of the circuit, then the aerial work of the electric power personnel is realized, the time consuming period is longer, the production and the life can be greatly influenced after the power is cut off, and certain safety risks exist in the aerial work of the electric power personnel.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a live repair mechanism for a power transmission cable, which can realize long-distance live repair for cable damage by operators.

In order to solve the technical problems, the live repair mechanism for the power transmission cable comprises a fixed block and a movable block, wherein a fixed supporting claw, an adjusting mechanism and an insulating rod are arranged on the fixed block, and a movable supporting claw and a plurality of guide rods are arranged on the movable block; the fixed support claw and the movable support claw have the same structure and comprise a groove-shaped plate main body, the groove-shaped plate main body comprises a bottom plate, a first side plate and a second side plate, the end part of the first side plate is provided with a support plate, the support plate is parallel and opposite to the bottom plate, and the second side plate is used for being fixedly connected; the two supporting plates are arranged in parallel and opposite to each other, and the distance between the two supporting plates is smaller than the distance between the two bottom plates; the guide rods are arranged along the direction vertical to the supporting plates and are inserted into the fixed blocks in a sliding manner; the adjusting mechanism is used for adjusting the position of the moving block relative to the fixed block so as to adjust the distance between the two supporting plates; one end of the insulating rod is fixedly connected with the fixed block, and the other end of the insulating rod is used for being held by hand.

In the live repair mechanism for the power transmission cable, the C-shaped elastic tube sleeve clamp can be opened through the two supporting plates, the C-shaped elastic tube sleeve clamp can be matched with the insulating rod to be clamped on the insulating cable, the damaged area is wrapped, the long-distance live repair is realized, power is not needed, and the live repair mechanism is convenient to operate, safe and convenient.

Further, the adjusting mechanism comprises a knob screw, and a shaft of the knob screw penetrates through the fixed block along the direction vertical to the supporting plate and is screwed with the fixed block; the end part of the knob screw rod is rotationally arranged in the moving block and can drive the moving block to axially move along the rod body.

Further, a through hole is formed in the fixing block, a thread bush is embedded in one end of the through hole, and an inner thread which can be matched with the rod body thread of the knob screw is arranged on the inner hole wall of the thread bush.

Further, an optical axis section is arranged at the end part of the rod body of the knob screw, and an annular groove is formed in the optical axis section.

Further, a first counter bore is formed in the moving block, and the end of the knob screw is inserted into the first counter bore hole; the movable block is further provided with a second counter bore which is perpendicular to the first counter bore, the bottom end of the second counter bore penetrates through the first counter bore, the second counter bore is a threaded hole, the inner thread is screwed with a limit screw, and the bottom end of the limit screw extends into the annular groove.

Further, the fixed block is the ladder piece that the cross-section is class L type, including the first ladder piece that is located the bottom and the second ladder piece that is located the top, the second ladder piece keep away from the side of first ladder piece with decide the second curb plate laminating fixed connection of propping the claw, be provided with a plurality of guiding holes on the second ladder piece with adjustment mechanism, the guiding hole be used for with the guide bar adaptation, thereby right the slip of movable block is led.

Further, the movable block is in a cuboid block shape, the movable block can move along the axial direction of the guide rod and is combined with the fixed block to form a cuboid block shape, and the movable block is far away from the side surface of the first step block and is fixedly connected with the second side plate of the movable supporting claw in a fitting manner.

Further, the length of the first side plate in the axial direction of the guide rod is larger than that of the second side plate.

Further, the insulating rod comprises a handle and a plurality of rod bodies, one end of each rod body is provided with a stud connecting piece, and the other end of each rod body is provided with a nut connecting piece matched with the stud connecting piece.

Further, a threaded mounting hole is formed in one side surface, away from the fixed supporting claw, of the fixed block, and the threaded mounting hole can be in threaded connection with the stud connecting piece.

In conclusion, by adopting the live repair mechanism for the power transmission cable, the damaged cable can be repaired remotely, and the live repair mechanism is safer and more convenient than the current mainstream repair mode.

Drawings

In the drawings:

fig. 1 is an overall structure diagram of the live repair mechanism for a power transmission cable of the present utility model.

Fig. 2 is a partial enlarged view of fig. 1.

Fig. 3 is a block structure diagram of the live repair mechanism for a power transmission cable of the present utility model.

Fig. 4 is a split structure diagram of a fixing block of the live repair mechanism for a power transmission cable.

Fig. 5 is a knob screw structure diagram of the live repair mechanism for the power transmission cable.

Fig. 6 is a diagram showing the structure of a movable block connecting guide rod of the live repair mechanism for the power transmission cable.

Fig. 7 is a split structure diagram of a moving block of the live repair mechanism for a power transmission cable.

Fig. 8 is a structural diagram of a guide rod of the live repair mechanism for a power transmission cable of the present utility model.

Fig. 9 is a diagram showing the structure of an insulating rod of the live repair mechanism for a power transmission cable according to the present utility model.

Fig. 10 is a diagram showing the structure of a rod body of the live repair mechanism for a power transmission cable according to the present utility model.

Fig. 11 is a bottom view of a fixed block of the live repair mechanism for a power transmission cable of the present utility model.

Fig. 12 is a C-shaped elastic tube sleeve clip structure diagram of the live repair mechanism for power transmission cables of the present utility model.

Reference numerals illustrate: 1. a fixed block; 11. a through hole; 12. a thread sleeve; 13. a machine rice screw; 14. a first step block; 15. a second step block; 16. a guide hole; 17. a threaded mounting hole; 2. a moving block; 21. a first counterbore; 22. a second counterbore; 23. a limit screw; 24. a threaded hole; 3. a fixed support claw; 4. a knob screw; 41. a ring groove; 42. a knob portion; 5. a movable supporting claw; 61. a slotted plate body; 611. a bottom plate; 612. a first side plate; 613. a second side plate; 62. a supporting plate; 7. an insulating rod; 71. a handle; 72. a rod body; 721. a stud connector; 722. a nut connector; 8. a guide rod; 81. a first column section; 82. a second column section; 9. c-shaped elastic tube jacket clamp.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model.

Figures 1-11 illustrate an electrified repair mechanism for a power transmission cable in accordance with the present utility model. As shown in fig. 1 and 2, the live repair mechanism for the power transmission cable comprises a fixed block 1 and a movable block 2, wherein a fixed supporting claw 3, an adjusting mechanism and an insulating rod 7 are arranged on the fixed block 1, and a movable supporting claw 5 and a plurality of guide rods 8 are arranged on the movable block 2; the fixed supporting claw 3 and the movable supporting claw 5 have the same structure and comprise a groove-shaped plate main body 61, the groove-shaped plate main body 61 comprises a bottom plate 611, a first side plate 612 and a second side plate 613, a supporting plate 62 is arranged at the end part of the first side plate 612, the supporting plate 62 is parallel to and opposite to the bottom plate 611, and the second side plate 613 is used for being fixedly connected; the two supporting plates 62 are arranged in parallel and opposite to each other, and the distance between the two supporting plates 62 is smaller than the distance between the two bottom plates 611; the guide rods 8 are arranged in a direction perpendicular to the stay plates 62 and are slidably inserted into the fixed block 1; the adjusting mechanism is used for adjusting the position of the moving block 2 relative to the fixed block 1 so as to adjust the distance between the two supporting plates 62; one end of the insulating rod 7 is fixedly connected with the fixed block 1, and the other end of the insulating rod is used for being held by hand.

When the electric repairing mechanism is used, the electric repairing mechanism for the power transmission cable is matched with the C-shaped elastic tube sleeve clamp 9 shown in fig. 12, the C-shaped elastic tube sleeve clamp 9 is in a tube shape with a long notch along the axial direction, the electric repairing mechanism has elasticity and insulativity, the elastic tube sleeve clamp can be elastically stretched along the radial direction from the notch, and the main body is made of plastic rubber. During repair, the C-shaped elastic tube sleeve clamp 9 is firstly placed into a space surrounded by the fixed support claw 3 and the movable support claw 5; then, the C-shaped elastic tube sleeve clamp 9 is moved, so that two parallel opposite supporting plates 62 extend into the notch of the C-shaped elastic tube sleeve clamp 9; then, the moving block 2 is moved by the adjusting mechanism, the movable supporting claw 5 is driven to move along the guide rod 8 in a direction away from the fixed supporting claw 3, the C-shaped elastic tube sleeve clamp 9 is supported to an insulating cable which can be put into a power transmission system, and the C-shaped elastic tube sleeve clamp 9 is clamped on the supporting plate 62 and kept in a supported state due to the elastic force; finally, the insulating rod 7 is held by hand to lift the C-shaped elastic tube sleeve clamp 9 to the bottom of the insulated cable, the insulated cable moves up to the inside of the C-shaped elastic tube sleeve clamp 9 from the gap between the two supporting plates 62, and the C-shaped elastic tube sleeve clamp 9 is separated from the two supporting plates 62 and is elastically clamped on the insulated cable due to downward force applied by the insulated cable to the C-shaped elastic tube sleeve clamp 9, so that the damage of the area wrapped by the C-shaped elastic tube sleeve clamp 9 is repaired. Due to the insulation and long-distance operation of the insulation rod 7, long-distance electrified repair can be realized without power failure.

In addition, the live repair mechanism for power transmission cable is matched with the C-shaped elastic tube jacket clamp 9, and repair of the insulated cable is limited to damage at the bottom of the insulated cable. The O-shaped elastic tube sleeve clamp with the notch can be designed to be matched with the live repair mechanism of the power transmission cable for use, so that the damage repair of the insulated cable in most situations can be satisfied.

Alternatively, as shown in fig. 1 to 7, the adjusting mechanism includes a knob screw 4, and a shaft of the knob screw 4 penetrates through the fixed block 1 in a direction perpendicular to the supporting plate 62 and is screwed with the fixed block 1; the end part of the knob screw 4 is rotatably arranged in the moving block 2 and can drive the moving block 2 to axially move along the rod body.

The knob screw 4 is utilized to rotate inside the fixed block 1, and the fixed block 1 is fixedly arranged, so that the fixed block 1 is in threaded fit with the rod body of the knob screw 4, the end part of the knob screw 4 moves relative to the fixed block 1 along the axial direction while rotating, and the connecting structure of the end part of the knob screw 4 and the movable block 2 can be utilized, so that the end part of the knob screw 4 only drives the movable block 2 to move without rotating with the movable block 2.

Optionally, as shown in fig. 3 and fig. 4, the fixing block 1 is provided with a through hole 11, one end of the through hole 11 is embedded with a threaded sleeve 12, and an inner hole wall of the threaded sleeve 12 is provided with an inner thread capable of being in threaded fit with a shaft of the knob screw 4.

Optionally, the thread form of the internal thread of the thread bush 12 is isosceles trapezoid, the thread form angle is 30 degrees, the thread bush is made of copper, the trapezoidal thread transmission and self-locking fastening mechanical property is good, the copper nut is soft, and the thread bush has good antifriction and running-in properties, so that the thread bush and the copper nut are stable in transmission and smooth in rotation. As shown in fig. 4, the threaded sleeve 12 is a stepped sleeve, and is in interference fit with the through hole, and in addition, in order to ensure that the threaded sleeve 12 is not fixed firmly in a rotating manner, the threaded sleeve 12 is tightly fixed by screwing a machine screw 13 from the top surface of the fixed block 1.

Alternatively, as shown in fig. 5, the end of the shaft of the knob screw 4 is provided with an optical axis section, and the optical axis section is provided with a ring groove 41, and the ring groove 41 is used for forming a structure that the end of the knob screw 4 only drives the moving block 2 to move, and does not drive the moving block 2 to rotate. In addition, a knob portion 42 is provided on the knob screw 4, and knurling is provided to facilitate manual rotation.

Optionally, as shown in fig. 7, the moving block 2 is provided with a first counter bore 21 into which the end of the knob screw 4 is inserted, and the first counter bore 21 is smooth; the movable block 2 is further provided with a second counter bore 22 which is perpendicular to the first counter bore 21, the bottom end of the second counter bore 22 penetrates through the first counter bore 21, the second counter bore 22 is a threaded hole, a limit screw 23 is screwed into the internal thread, and the bottom end of the limit screw 23 extends into the annular groove 41.

The diameter of the end of the limit screw 23 is generally smaller than the width of the ring groove 41, so that no or only small rotation force is applied to the moving block 2 in the process of rotating the optical axis section of the end machine of the knob screw 4, and the moving block 2 is driven to move in the process of moving the optical axis section, so that the position of the moving block 2 relative to the fixed block 1 is adjusted.

Alternatively, as shown in fig. 8, the guide rod 8 has a stepped columnar shape, and includes a first column section 81 and a second column section 82, and the first column section 81 has a smaller diameter than the second column section 82. The side surface of the first column section 81 is provided with external threads for fixedly connecting with the movable block 2; the second column section 82 is an optical axis, and is slidably inserted into the inside of the fixed block 1. As shown in fig. 7, the moving block 2 is provided with a screw hole 24 which is engaged with the first column section 81.

Alternatively, as shown in fig. 1-4, the fixing block 1 is in a stepped block shape with an L-shaped cross section, and includes a first stepped block 14 located at the bottom and a second stepped block 15 located at the top, where the side surface of the second stepped block 15 away from the first stepped block 14 is fixedly connected with the second side plate 613 of the fixing claw 3 in a fitting manner. The second step block 15 is provided with a plurality of guide holes 16 and the adjusting mechanism, and the guide holes 16 are used for being matched with the guide rods 8 so as to guide the sliding of the moving block 2.

The first step block 14 and the second step block 15 are both rectangular block-shaped and have the same length, and the width of the first step block 14 is larger than that of the second step block 15, so that the whole can form a step shape. For convenience in describing the fixed positions of the guide bar 8 and the fixed stay 3, definition is given of: the first step block 14 and the second step block 15 have a length direction of X, a width direction of Y, and a height direction of Z, as shown in fig. 3. Optionally, two guide rods 8 are arranged at intervals along the Y direction; the knob screw 4 is also arranged in the Y-direction and is located in the middle of the two guide rods 8. The first side plate 612, the second side plate 613, and the stay plate 62 of the fixed stay 3 are rectangular plates, and the long side directions are all arranged in the X direction. In addition, the XY plane may be a horizontal plane, and the Z direction may be a vertical direction.

Alternatively, as shown in fig. 6 and fig. 7, the moving block 2 is in a cuboid block shape, the moving block 2 moves axially along the guide rod 8 and can be combined with the fixed block 1 to form a cuboid block shape, so that the fixed block 1 and the moving block 2 have flush side surfaces, and the fixed support claw 3 and the movable support claw 5 are respectively fixed on the flush side surfaces, so that the fixed support claw 3 and the movable support claw 5 can be arranged in a mirror symmetry manner. The side surface of the moving block 2 far away from the first step block 14 is fixedly connected with the second side plate 613 of the movable supporting claw 5 in a fitting manner.

The first counter bore 21 and the threaded hole 24 are both arranged along the Y direction, the second counter bore 22 is arranged along the Z direction, and in order to avoid the movable supporting claw 5, the second counter bore 22 is formed in the side surface of the movable block 2, which is attached to the first step block 14.

Optionally, the length of the first side plate 612 in the axial direction of the guide bar 8 is greater than the second side plate 613, which facilitates a sufficient adjustable gap between the two stay plates 62.

Optionally, the second side plate 613 is fixedly connected with the side surface of the movable supporting claw 5 or the fixed supporting claw 3 through a screw.

Alternatively, as shown in fig. 9 and 10, the insulating rod 7 includes a handle 71 and a plurality of rods 72, one end of each rod 72 is provided with a stud connector 721, and the other end is provided with a nut connector 722 adapted to the stud connector 721. Insulating rod 7 can adopt the order gram stick, and double-screw bolt connecting piece 721 and nut connecting piece 722 can be connected with the body of rod 72 with the rivet, can link to each other many bodies of rod 72 end to end according to actual demand, can freely dismantle when not using, portable, and the order gram stick has insulating properties good, characteristics that intensity is high can satisfy live working requirement.

Alternatively, as shown in fig. 11, a side surface of the fixed block 1 away from the fixed stay claw 3 is provided with a threaded mounting hole 17, and the threaded mounting hole 17 can be in threaded connection with the stud connecting piece 721. When the cable fixing device is used, a jacking force is applied to the opposite side surfaces of the fixing support claws 3 fixed by the fixing blocks 1, namely the cable fixing device is pushed upwards from the bottom surface of the fixing blocks 1, so that a damaged cable can be conveniently positioned between the two support plates 62.

Finally, it should be noted that: the foregoing embodiments are merely for illustrating the technical aspects of the present utility model and not for limiting the scope thereof, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes, modifications or equivalents may be made to the specific embodiments of the present utility model after reading the present utility model, and these changes, modifications or equivalents are within the scope of the utility model as defined in the appended claims.

Claims (10)

1. The live repair mechanism for the power transmission cable is characterized by comprising a fixed block (1) and a movable block (2), wherein a fixed supporting claw (3), an adjusting mechanism and an insulating rod (7) are arranged on the fixed block (1), and a movable supporting claw (5) and a plurality of guide rods (8) are arranged on the movable block (2);

The fixed support claw (3) and the movable support claw (5) have the same structure and comprise a groove-shaped plate main body (61), the groove-shaped plate main body (61) comprises a bottom plate (611), a first side plate (612) and a second side plate (613), a support plate (62) is arranged at the end part of the first side plate (612), the support plate (62) is parallel and opposite to the bottom plate (611), and the second side plate (613) is used for being fixedly connected; the two supporting plates (62) are arranged in parallel and opposite to each other, and the distance between the two supporting plates (62) is smaller than the distance between the two bottom plates (611);

The guide rod (8) is arranged along the direction vertical to the supporting plate (62) and is inserted into the fixed block (1) in a sliding way; the adjusting mechanism is used for adjusting the position of the moving block (2) relative to the fixed block (1) so as to adjust the distance between the two supporting plates (62); one end of the insulating rod (7) is fixedly connected with the fixed block (1), and the other end of the insulating rod is used for being held by hand.

2. The live repair mechanism for the electric transmission cable according to claim 1, wherein the adjusting mechanism comprises a knob screw (4), and a shaft of the knob screw (4) penetrates through the fixed block (1) along a direction perpendicular to the supporting plate (62) and is screwed with the fixed block (1); the end part of the knob screw (4) is rotationally arranged in the moving block (2), and can drive the moving block (2) to axially move along the rod body.

3. The live repair mechanism for the power transmission cable according to claim 2, wherein a through hole (11) is formed in the fixed block (1), a threaded sleeve (12) is embedded into one end of the through hole (11), and an inner thread which can be in threaded fit with a shaft of the knob screw (4) is formed in an inner hole wall of the threaded sleeve (12).

4. Live repair mechanism for electric cables according to claim 2, characterized in that the shaft end of the knob screw (4) is provided with an optical axis section and the optical axis section is provided with a ring groove (41).

5. The live repair mechanism for the power transmission cable according to claim 4, wherein a first counter bore (21) into which the end part of the knob screw (4) is inserted is arranged on the moving block (2), and the first counter bore (21) is provided with a light hole; the movable block (2) is further provided with a second counter bore (22) which is perpendicular to the first counter bore (21), the bottom end of the second counter bore (22) penetrates through the first counter bore (21), the second counter bore (22) is a threaded hole, a limit screw (23) is screwed into the internal thread, and the bottom end of the limit screw (23) extends into the annular groove (41).

6. The live repair mechanism for the power transmission cable according to claim 1, wherein the fixed block (1) is in a ladder block shape with an L-shaped section, the fixed block comprises a first ladder block (14) positioned at the bottom and a second ladder block (15) positioned at the top, the second ladder block (15) is far away from the side surface of the first ladder block (14) and is fixedly connected with a second side plate (613) of the fixed stay claw (3) in a fitting manner, a plurality of guide holes (16) and an adjusting mechanism are arranged on the second ladder block (15), and the guide holes (16) are used for being matched with the guide rods (8) so as to guide sliding of the moving block (2).

7. The live repair mechanism for the power transmission cable according to claim 6, wherein the moving block (2) is in a cuboid block shape, the moving block (2) can be combined with the fixed block (1) to form a cuboid block shape integrally along the axial movement of the guide rod (8), and the side surface, away from the first step block (14), of the moving block (2) is fixedly connected with the second side plate (613) of the movable supporting claw (5) in a fitting manner.

8. A live repair mechanism for electrical cables according to claim 1, wherein the first side plate (612) has a greater length in the axial direction of the guide bar (8) than the second side plate (613).

9. Live repair mechanism for electric cables according to claim 1, characterized in that the insulating rod (7) comprises a handle (71) and a plurality of rods (72), one end of the rods (72) being provided with a stud connection (721) and the other end being provided with a nut connection (722) adapted to the stud connection (721).

10. Live repair mechanism for electric cables according to claim 9, characterized in that a side of the fixed block (1) remote from the fixed stay claw (3) is provided with a threaded mounting hole (17), the threaded mounting hole (17) being threadably connected with the stud connection (721).