An insulation layer repair device for low voltage cable maintenance

Abstract

The present invention relates to an insulation layer repair device for low-voltage cable maintenance, which includes a positioning frame, the positioning frame is symmetrically provided with a clamping mechanism, a tray is provided between the two clamping mechanisms, a slide groove is provided in the middle of the tray, a cutting seat is provided inside the slide groove, a top head is provided on the top of the cutting seat, a knife seat is provided above the cutting seat, an annular groove is provided inside the knife seat, the top head and the annular groove are mutually clamped, a cutting knife is provided inside the knife seat, and a pull rod is fixedly provided on the outside of the knife seat; using this device, the time for cable maintenance can be greatly shortened and work efficiency can be improved. At the same time, the safety risks caused by improper operation are also reduced. The present invention has the advantages of easy installation, stable clamping, simple operation, safety and reliability.

Description

Technical Field

[0001] The invention belongs to the technical field of cable repair equipment, and in particular relates to an insulation layer repair device for low-voltage cable repair. Background Art

[0002] Cables are conductors covered with insulation, protective layers, shielding layers, etc., used to transmit power or signal currents and signal voltages. Low-voltage cables have the characteristics of reliable operation, no need to erect poles, no ground occupation, no obstruction of appearance, and little influence from the outside world, and are widely used in low-voltage power distribution systems. After the low-voltage cable is installed and put into use, as the use time increases, the surface of the low-voltage cable will inevitably age to varying degrees, which is easy to cause damage to the cable insulation surface, and then it needs to be repaired to restore the insulation performance of the low-voltage cable to prevent leakage. When repairing the low-voltage cable, it is necessary to first strip off the damaged insulation layer on the surface of the low-voltage cable, and then wrap and seal the damaged part of the low-voltage cable with insulating materials or sheath tubes, and then re-establish the protective layer. However, when stripping the insulation layer, manual operation is usually used. Since the low-voltage cable body will shake during the operation, and different operators have different technical levels, the cable insulation layer will also be unevenly stripped, affecting the subsequent repair effect. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an insulation layer repair device for low-voltage cable maintenance which is easy to install, stable in clamping, simple in operation, safe and reliable.

[0004] The objective of the present invention is achieved as follows: an insulation layer repair device for low-voltage cable maintenance, comprising a positioning frame, the positioning frame being symmetrically provided with clamping mechanisms, a tray being provided between the two clamping mechanisms, a slide groove being provided in the middle of the tray, a cutting seat being provided inside the slide groove, a top being provided with a head on the top of the cutting seat, a knife seat being provided above the cutting seat, an annular groove being provided inside the knife seat, the head and the annular groove being clamped with each other, a cutting knife being provided inside the knife seat, and a pull rod being fixedly provided on the outside of the knife seat.

[0005] A handle is arranged at the bottom of the clamping mechanism.

[0006] A limiting groove is arranged inside the tray, and a limiting block is arranged at the bottom of the cutting seat.

[0007] A positioning rod is arranged on the side of the limit block, and a rotating block is screwed on the outer end of the positioning rod.

[0008] The clamping mechanism includes a bracket and a clamping jaw, a gear shaft is arranged in the middle of the bracket, a counter gear is connected to the outer side of the gear shaft, an active arm is fixedly arranged on the surface of the gear shaft, the active arm is hinged to the bottom of the clamping jaw, a driven arm is hinged between the top of the bracket and the middle of the clamping jaw, a driving gear is arranged at the bottom of the bracket, and the driving gear and the counter gear are meshed with each other.

[0009] A wire clamping groove is arranged inside the clamping jaw, and the inner shape of the wire clamping groove is an arc shape.

[0010] A driving motor is arranged outside the bracket, a transmission shaft is arranged at the output end of the driving motor, a key slot is arranged between the driving gear and the transmission shaft, and a flat key is arranged inside the key slot.

[0011] A lifting mechanism is arranged inside the cutting seat, and the lifting mechanism includes a vertical handle, a lifting screw is arranged inside the vertical handle, the upper end of the lifting screw is fixedly connected to the top head, a sleeve is clamped on the outer side of the vertical handle, and the sleeve and the lifting screw are screwed together.

[0012] A clamping block is arranged on the inner side of the vertical handle, and a side groove is arranged on the surface of the lifting screw.

[0013] Beneficial effects of the present invention: The device drives the transmission shaft and the driving gear to rotate through the driving motor, and then drives the gear and the gear shaft to rotate, so that the active arm and the driven arm cooperate to achieve a stable clamping of the cable, which not only improves the work efficiency, but also ensures that the cable will not be damaged due to improper clamping during the repair process. The design of the limit groove inside the tray and the limit block at the bottom of the cutting seat, as well as the coordination of the positioning rod and the rotary block, enable the cutting seat to slide and position stably on the tray, which is convenient for repairing the insulation layer at different positions. The coordinated design of the cutting seat and the knife seat enables the cutter to accurately cut the insulation layer of the cable. By adjusting the lifting mechanism, the cutting depth of the cutter can be conveniently controlled, thereby achieving accurate repair of the insulation layer damage. The use of this device can greatly shorten the time for cable maintenance and improve work efficiency. At the same time, it also reduces the safety risks caused by improper operation. The present invention has the advantages of easy installation, stable clamping, simple operation, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is an overall structural diagram of an insulation layer repair device for low-voltage cable maintenance.

[0015] Figure 2 This is a structural diagram of a cutting seat of an insulation layer repair device for low-voltage cable maintenance according to the present invention.

[0016] Figure 3 The present invention is a top view of the interior of a tray of an insulation layer repair device for low-voltage cable maintenance.

[0017] Figure 4 The present invention is a side view of the internal structure of a tray of an insulation layer repair device for low-voltage cable maintenance.

[0018] Figure 5 The present invention is a side view of a clamping mechanism of an insulation layer repair device for low-voltage cable maintenance.

[0019] Figure 6 This is a structural diagram of the connection between the transmission shaft and the driving gear of an insulation layer repair device for low-voltage cable maintenance according to the present invention.

[0020] Figure 7 This is a side structural diagram of a driving gear of an insulation layer repair device for low-voltage cable maintenance according to the present invention.

[0021] Figure 8 The present invention is a diagram showing the internal structure of a cutting seat of an insulation layer repair device for low-voltage cable maintenance.

[0022] Fig. 9 The present invention is a structural diagram of the connection between the side groove and the clamping block of an insulation layer repair device for low-voltage cable maintenance.

[0023] In the figure: 1, positioning frame 2, clamping mechanism 3, handle 4, tray 5, slide 6, cutting seat 7, top head 8, knife seat 9, ring groove 10, cutter 11, pull rod 12, positioning rod 13, rotary block 14, bracket 15, clamping claw 16, gear 17, gear shaft 18, active arm 19, driving gear 20, driven arm 21, wire clamping groove 22, driving motor 23, transmission shaft 24, keyway 25, flat key 26, vertical handle 27, sleeve 28, lifting screw 29, side groove 30, block 31, limit groove 32, limit block. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings. Example 1

[0025] like Figure 1-4 As shown, an insulation layer repair device for low-voltage cable maintenance, an insulation layer repair device for low-voltage cable maintenance, it includes a positioning frame 1, the positioning frame 1 is symmetrically provided with a clamping mechanism 2, a tray 4 is arranged between the two clamping mechanisms 2, a slide groove 5 is arranged in the middle of the tray 4, a cutting seat 6 is arranged inside the slide groove 5, a top head 7 is arranged on the top of the cutting seat 6, a knife seat 8 is arranged above the cutting seat 6, an annular groove 9 is arranged inside the knife seat 8, the top head 7 and the annular groove 9 are clamped with each other, a cutter 10 is arranged inside the knife seat 8, and a pull rod 11 is fixedly arranged on the outside of the knife seat 8.

[0026] A handle 3 is provided at the bottom of the clamping mechanism 2 .

[0027] A limiting groove 31 is disposed inside the tray 4 , and a limiting block 32 is disposed at the bottom of the cutting seat 6 .

[0028] A positioning rod 12 is disposed on the side of the limiting block 32 , and a rotating block 13 is screwed on the outer end of the positioning rod 12 .

[0029] When the present invention is in use, it is ensured that all parts of the device are intact, especially key parts such as the positioning frame 1, the clamping mechanism 2, and the cutting seat 6. The handle 3 is used to drive the device close to the cable, and the clamping mechanism 2 is used to clamp the cable to ensure that the cable will not move or slip during the repair process. The position of the cutting seat 6 outside the tray 4 is adjusted so that the cutter 10 can accurately align with the part of the cable that needs to be repaired. The cooperation of the limit groove 31 and the limit block 32 is used to ensure that the cutting seat 6 remains stable during the sliding process, and the rotary block 13 is rotated to fix the positioning rod 12 and the cutting seat 6. The cutter 10 inside the knife seat 8 is used to cut the insulation layer of the cable. If necessary, the pull rod 11 can be used to drive the knife seat 8 to move, so that the head 7 moves along the annular groove 9, and then the cutter 10 can be used to perform a ring cutting operation on the cable. The present device integrates multiple functions such as clamping and cutting into one, has a compact structure, is easy to use at the low-voltage cable maintenance site, and effectively ensures the stability and durability of the device. Example 2

[0030] like Figure 1-7 As shown, an insulation layer repair device for low-voltage cable maintenance includes a positioning frame 1, the positioning frame 1 is symmetrically provided with a clamping mechanism 2, a tray 4 is provided between the two clamping mechanisms 2, a slide groove 5 is provided in the middle of the tray 4, a cutting seat 6 is provided inside the slide groove 5, a top head 7 is provided on the top of the cutting seat 6, a knife seat 8 is provided above the cutting seat 6, an annular groove 9 is provided inside the knife seat 8, the top head 7 and the annular groove 9 are clamped with each other, a cutter 10 is provided inside the knife seat 8, and a pull rod 11 is fixedly provided on the outside of the knife seat 8.

[0031] For better effect, a handle 3 is provided at the bottom of the clamping mechanism 2. The provision of the handle 3 makes the whole device more convenient to carry and operate.

[0032] For better effect, a limiting groove 31 is arranged inside the tray 4, and a limiting block 32 is arranged at the bottom of the cutting seat 6. The limiting block 32 can move along the limiting groove 31, so as to increase the stability of the tray 4.

[0033] For better effect, a positioning rod 12 is arranged on the side of the limit block 32, and a rotary block 13 is screwed on the outer end of the positioning rod 12. The positioning rod 12 can move with the limit block 32, and the rotary block 13 can be clamped on the outer side of the tray 4 by rotating the rotary block 13.

[0034] For better effect, the clamping mechanism 2 includes a bracket 14 and a clamping jaw 15. A gear shaft 17 is arranged in the middle of the bracket 14. A pair of gears 16 are connected to the outside of the gear shaft 17. An active arm 18 is fixedly arranged on the surface of the gear shaft 17. The active arm 18 is hinged to the bottom of the clamping jaw 15. A driven arm 20 is hinged between the top of the bracket 14 and the middle of the clamping jaw 15. A driving gear 19 is arranged at the bottom of the bracket 14. The driving gear 19 is meshed with the pair of gears 16.

[0035] For better effect, a clamping groove 21 is provided inside the clamping jaw 15, and the inner shape of the clamping groove 21 is arc-shaped. The arc-shaped clamping groove 21 inside the clamping jaw 15 can better adapt to the shape of the cable and ensure the stability and safety of clamping.

[0036] For better effect, a driving motor 22 is arranged outside the bracket 14, a transmission shaft 23 is arranged at the output end of the driving motor 22, a key slot 24 is arranged between the driving gear 19 and the transmission shaft 23, and a flat key 25 is arranged inside the key slot 24. Under the action of the flat key 25 and the key slot 24, the transmission shaft 23 can drive the driving gear 19 to rotate synchronously.

[0037] When the present invention is in use, it is ensured that all parts of the device are intact, especially key parts such as the positioning frame 1, the clamping mechanism 2, and the cutting seat 6. The handle 3 is used to drive the device close to the cable, and the clamping mechanism 2 is used to clamp the cable to ensure that the cable does not move or slip during the repair process. The position of the cutting seat 6 on the outside of the tray 4 is adjusted so that the cutter 10 can be accurately aligned with the part of the cable that needs to be repaired. The cooperation of the limit groove 31 and the limit block 32 is used to ensure that the cutting seat 6 remains stable during the sliding process, and the rotary block 13 is rotated to fix the positioning rod 12 and the cutting seat 6. The cutter 10 inside the knife seat 8 is used to cut the insulation layer of the cable. If necessary, the pull rod 11 can be used to drive the knife seat 8 to move, so that the head 7 moves along the annular groove 9, and then the cable can be ring-cut by the cutter 10. Furthermore, the clamping mechanism is preferably: start the drive motor 22 to start running, under the action of the key slot 24 and the flat key 25, the output end of the drive motor 22 drives the drive gear 19 to rotate through the transmission shaft 23, and the drive gear 19 and the counter gear 16 are meshed with each other, so when the drive gear 19 rotates, the counter gear 16 will also rotate accordingly, and when the counter gear 16 rotates, it will drive the gear shaft 17 to rotate together, and the active arm 18 fixed on the surface of the gear shaft 17 will swing with the rotation of the gear shaft 17, and the driven arm 20 hinged between the top of the bracket 14 and the middle of the clamping claw 15 will also move accordingly due to the swing of the active arm 18, and the coordinated action of the active arm 18 and the driven arm 20 enables the clamping claw 15 to clamp or release the cable. This device integrates multiple functions such as clamping and cutting into one, has a compact structure, is easy to use at the low-voltage cable maintenance site, and effectively ensures the stability and durability of the device. Example 3

[0038] like Figure 1-9 As shown, an insulation layer repair device for low-voltage cable maintenance includes a positioning frame 1, the positioning frame 1 is symmetrically provided with a clamping mechanism 2, a tray 4 is provided between the two clamping mechanisms 2, a slide groove 5 is provided in the middle of the tray 4, a cutting seat 6 is provided inside the slide groove 5, a top head 7 is provided on the top of the cutting seat 6, a knife seat 8 is provided above the cutting seat 6, an annular groove 9 is provided inside the knife seat 8, the top head 7 and the annular groove 9 are clamped with each other, a cutter 10 is provided inside the knife seat 8, and a pull rod 11 is fixedly provided on the outside of the knife seat 8.

[0039] For better effect, a handle 3 is provided at the bottom of the clamping mechanism 2. The provision of the handle 3 makes the whole device more convenient to carry and operate.

[0040] For better effect, a limiting groove 31 is arranged inside the tray 4, and a limiting block 32 is arranged at the bottom of the cutting seat 6. The limiting block 32 can move along the limiting groove 31, so as to increase the stability of the tray 4.

[0041] For better effect, a positioning rod 12 is arranged on the side of the limit block 32, and a rotary block 13 is screwed on the outer end of the positioning rod 12. The positioning rod 12 can move with the limit block 32, and the rotary block 13 can be clamped on the outer side of the tray 4 by rotating the rotary block 13.

[0042] For better effect, the clamping mechanism 2 includes a bracket 14 and a clamping jaw 15. A gear shaft 17 is arranged in the middle of the bracket 14. A pair of gears 16 are connected to the outside of the gear shaft 17. An active arm 18 is fixedly arranged on the surface of the gear shaft 17. The active arm 18 is hinged to the bottom of the clamping jaw 15. A driven arm 20 is hinged between the top of the bracket 14 and the middle of the clamping jaw 15. A driving gear 19 is arranged at the bottom of the bracket 14. The driving gear 19 is meshed with the pair of gears 16.

[0043] For better effect, a clamping groove 21 is provided inside the clamping jaw 15, and the inner shape of the clamping groove 21 is arc-shaped. The arc-shaped clamping groove 21 inside the clamping jaw 15 can better adapt to the shape of the cable and ensure the stability and safety of clamping.

[0044] For better effect, a driving motor 22 is arranged outside the bracket 14, a transmission shaft 23 is arranged at the output end of the driving motor 22, a key slot 24 is arranged between the driving gear 19 and the transmission shaft 23, and a flat key 25 is arranged inside the key slot 24. Under the action of the flat key 25 and the key slot 24, the transmission shaft 23 can drive the driving gear 19 to rotate synchronously.

[0045] For better effect, a lifting mechanism is arranged inside the cutting seat 6, and the lifting mechanism includes a vertical handle 26, and a lifting screw 28 is arranged inside the vertical handle 26. The upper end of the lifting screw 28 is fixedly connected to the top head 7, and a sleeve 27 is clamped on the outer side of the vertical handle 26, and the sleeve 27 and the lifting screw 28 are screwed together.

[0046] For better effect, a clamping block 30 is provided inside the vertical handle 26 , and a side groove 29 is provided on the surface of the lifting screw rod 28 .

[0047] When the present invention is used, it is ensured that all parts of the device are intact, especially key parts such as the positioning frame 1, the clamping mechanism 2, and the cutting seat 6. The handle 3 is used to drive the device close to the cable, and the clamping mechanism 2 is used to clamp the cable to ensure that the cable will not move or slip during the repair process. The position of the cutting seat 6 outside the tray 4 is adjusted so that the cutter 10 can accurately align with the part of the cable that needs to be repaired. The cooperation of the limit groove 31 and the limit block 32 is used to ensure that the cutting seat 6 remains stable during the sliding process, and the rotary block 13 is rotated to fix the positioning rod 12 and the cutting seat 6. The cutter 10 inside the knife seat 8 is used to cut the insulation layer of the cable. If necessary, the knife seat 8 can be driven to move by the pull rod 11, so that the head 7 moves along the annular groove 9, and then the cable can be cut by the cutter 10. Further, the lifting mechanism is preferably: holding the sleeve 27 and rotating it. Since the lifting screw 28 and the sleeve 27 are screwed together, rotating the sleeve 27 will cause the lifting screw 28 to rise or fall inside the vertical handle 26. The top head 7 at the upper end of the lifting screw 28 is engaged with the annular groove 9 inside the knife seat 8, so the lifting and lowering of the lifting screw 28 will drive the knife seat 8 and the cutter 10 to move together. By observation or measurement, the cutting depth required by the knife seat 8 and the cutter 10 can be accurately adjusted. After the lifting position is fixed, the cutting operation can be performed. The device integrates multiple functions such as clamping and cutting into one, has a compact structure, is easy to use at the low-voltage cable maintenance site, and effectively ensures the stability and durability of the device.

Claims

1. An insulation layer repair device for low voltage cable maintenance, comprising a positioning frame, characterized in that: The positioning frame is symmetrically provided with clamping mechanisms, a tray is provided between the two clamping mechanisms, a slide groove is provided in the middle of the tray, a cutting seat is provided inside the slide groove, a top head is provided on the top of the cutting seat, a knife seat is provided above the cutting seat, an annular groove is provided inside the knife seat, the top head and the annular groove are clamped with each other, a cutting knife is provided inside the knife seat, and a pull rod is fixedly provided on the outside of the knife seat.

2. The insulation layer repair device for low voltage cable maintenance as claimed in claim 1, characterized in that: A handle is arranged at the bottom of the clamping mechanism.

3. The insulation layer repair device for low voltage cable maintenance as claimed in claim 2, characterized in that: A limiting groove is arranged inside the tray, and a limiting block is arranged at the bottom of the cutting seat.

4. The insulation layer repair device for low voltage cable maintenance as claimed in claim 3, characterized in that: A positioning rod is arranged on the side of the limit block, and a rotating block is screwed on the outer end of the positioning rod.

5. The insulation layer repair device for low voltage cable maintenance as claimed in claim 1, characterized in that: The clamping mechanism includes a bracket and a clamping jaw, a gear shaft is arranged in the middle of the bracket, a counter gear is connected to the outer side of the gear shaft, an active arm is fixedly arranged on the surface of the gear shaft, the active arm is hinged to the bottom of the clamping jaw, a driven arm is hinged between the top of the bracket and the middle of the clamping jaw, a driving gear is arranged at the bottom of the bracket, and the driving gear and the counter gear are meshed with each other.

6. The insulation layer repair device for low voltage cable maintenance as claimed in claim 5, characterized in that: A wire clamping groove is arranged inside the clamping jaw, and the inner shape of the wire clamping groove is an arc shape.

7. The insulation layer repair device for low voltage cable maintenance as claimed in claim 6, characterized in that: A driving motor is arranged outside the bracket, a transmission shaft is arranged at the output end of the driving motor, a key slot is arranged between the driving gear and the transmission shaft, and a flat key is arranged inside the key slot.

8. The insulation layer repair device for low voltage cable maintenance as claimed in claim 1, characterized in that: A lifting mechanism is arranged inside the cutting seat, and the lifting mechanism includes a vertical handle, a lifting screw is arranged inside the vertical handle, the upper end of the lifting screw is fixedly connected to the top head, a sleeve is clamped on the outer side of the vertical handle, and the sleeve and the lifting screw are screwed together.

9. The insulation layer repair device for low voltage cable maintenance as claimed in claim 8, characterized in that: A clamping block is arranged on the inner side of the vertical handle, and a side groove is arranged on the surface of the lifting screw.

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