Fixture for replacing insulator

Abstract

The utility model discloses a fixture for replacing an insulator, which relates to the technical field of insulators, and comprises a metal clamp, a side hoop block and a bidirectional screw rod, one side of the metal clamp is connected with a guide block, the outer side of the metal clamp is provided with a positioning mechanism, the positioning mechanism selects a rubber sleeve with a corresponding size according to the diameter of the insulator, and the two-way screw rod is connected with the side hoop block. The top end and the tail end of the insulator are positioned through the metal hoops and the side hoop blocks, the distance adjusting mechanisms are arranged on the two sides of the metal hoops, the distance adjusting mechanisms adjust the distance between the two sets of metal hoops, then the insulators of different lengths and sizes are positioned, the load on the insulator to be replaced is transferred to the clamp, and the replacement efficiency of the insulator to be replaced is improved. Therefore, the insulator can be replaced. By holding the handheld rod, the handheld rod is used for driving the double-hand screw rod to rotate, the two-way screw rod is used for lifting the threads of the inner tooth sleeve blocks arranged on the two sides, then the distance between the metal hoops is adjusted, and meanwhile the guide rod and the guide block arranged on one side are used for guiding.

Description

Technical Field

[0001] This utility model relates to the technical field of insulators, and specifically to a clamp for replacing insulators. Background Technology

[0002] Insulators near crossarms or conductors are more prone to aging, damage, and failure, which can easily lead to lightning strikes or surface flashover discharges, causing line faults and tripping. Traditional replacement methods involve live-line replacement, typically using insulated pulley blocks or equipotential bonding to replace the entire string, or using semi-circular clamps or closed clamps to replace individual insulators except for the first insulator on the crossarm side.

[0003] During use, the spacing between the two sets of clamps is generally adjusted according to the size of the insulator. However, with frequent use, the symmetrically arranged lead screws will cause the difference in the threads of the two sets of clamps to increase after a period of use, which will affect the accuracy of the clamps in adjusting the distance. Summary of the Invention

[0004] The purpose of this invention is to provide a clamp for insulator replacement, so as to solve the above-mentioned defects caused by the prior art.

[0005] A clamp for replacing insulators includes a metal clamp, a side clamp block, and a bidirectional screw rod. A guide block is connected to one side of the metal clamp, and a positioning mechanism is provided on the outer side of the metal clamp. The positioning mechanism selects a rubber sleeve of an appropriate size according to the diameter of the insulator and positions the top and bottom ends of the insulator through the metal clamp and the side clamp block. An adjustment mechanism is provided on both sides of the metal clamp to adjust the distance between the two sets of metal clamps, thereby satisfying the positioning of insulators of different lengths and transferring the load on the insulator to be replaced to the clamp, thus replacing the insulator.

[0006] Preferably, the positioning mechanism includes a positioning through hole, a rubber sleeve, a flat iron sheet, a side clamping block, and fasteners. The positioning through hole is opened through the outside of the metal clamp. A rubber sleeve is provided on the outside of the positioning through hole. A side clamping block is connected to one side of the rubber sleeve. Flat iron sheets are provided on both the upper and lower sides of the side clamping block. Fasteners are symmetrically connected to the outside of the flat iron sheets.

[0007] Preferably, the flat iron sheet is symmetrically connected to the outside of a metal clamp via fasteners.

[0008] Preferably, the adjusting mechanism includes an adjusting rod, positioning holes, a hand lever, a two-way lead screw, a nut, and an internal threaded block. The adjusting rod is disposed on one side of the two sets of metal clamps. Positioning holes are equally spaced on the outer side of the adjusting rod. An internal threaded block is connected to one side of the metal clamp. A two-way lead screw is connected inside the internal threaded block. A hand lever is connected through the middle of the two-way lead screw. A nut is connected to the outer side of the two-way lead screw.

[0009] Preferably, the metal clamp is connected to both sides of the bidirectional lead screw via an internal toothed block connected to one side.

[0010] Preferably, the adjusting rod is connected to the outside of the guide block through positioning holes that are equally spaced on the outside.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. During use, by holding the hand lever, the two-hand screws are rotated. The two-way screws are used to raise and lower the threads of the inner threaded blocks on both sides, thereby adjusting the spacing of the metal clamps. At the same time, the guide rod and guide block on one side are used for guidance, which prevents the adjustment spacing of the metal clamps from increasing during use, thus affecting the positioning accuracy of insulators of different sizes. This greatly reduces the labor intensity of the operator and effectively improves work efficiency.

[0013] 2. Positioning is achieved by using the side clamp block and the outer side of the metal clamp. During use, the flat iron plates on the upper and lower sides of the side clamp block fit against the outer side of the metal clamp, which facilitates the positioning of the side clamp block and the outer side of the metal clamp. This also facilitates the positioning of rubber sleeves of different thicknesses, thus meeting the positioning requirements of insulators of different diameters. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the side clamp block structure in this utility model.

[0016] Figure 3 This is a top view schematic diagram of the overall structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the overall side view structure of this utility model.

[0018] in:

[0019] 1. Metal clamp; 2. Positioning through hole; 3. Rubber sleeve; 4. Flat iron sheet; 5. Positioning mechanism; 6. Adjusting rod; 7. Adjusting distance mechanism; 8. Positioning hole; 9. Hand handle; 10. Two-way lead screw; 11. Nut; 12. Guide block; 13. Side clamp block; 14. Fastener; 15. Internal threaded sleeve block. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1 to 4 As shown, an insulator replacement clamp includes a metal clamp 1, a side clamp block 13, and a bidirectional screw 10. A guide block 12 is connected to one side of the metal clamp 1, and a positioning mechanism 5 is provided on the outer side of the metal clamp 1. The positioning mechanism 5 selects a rubber sleeve 3 of the appropriate size according to the diameter of the insulator, and positions the top and bottom ends of the insulator through the metal clamp 1 and the side clamp block 13. An adjustment mechanism 7 is provided on both sides of the metal clamp 1, and the adjustment mechanism 7 adjusts the distance between the two sets of metal clamps 1, thereby satisfying the positioning of insulators of different lengths and transferring the load on the insulator to be replaced to the clamp, thereby replacing the insulator.

[0022] In this embodiment, the positioning mechanism 5 includes a positioning through hole 2, a rubber sleeve 3, a flat iron sheet 4, a side clamping block 13, and a fastener 14. The positioning through hole 2 is opened through the outside of the metal clamp 1. The rubber sleeve 3 is provided on the outside of the positioning through hole 2. The side clamping block 13 is connected to one side of the rubber sleeve 3. Flat iron sheets 4 are provided on both the upper and lower sides of the side clamping block 13. Fasteners 14 are symmetrically connected to the outside of the flat iron sheets 4. The upper and lower sides of the insulator are positioned by rubber sleeves 3 of different diameters.

[0023] In this embodiment, the flat iron sheet 4 is symmetrically connected to the outside of the metal clamp 1 by fasteners 14. The flat iron sheet 4 increases the friction at the connection between the side clamp block 13 and the metal clamp 1, making it easier to quickly replace the side clamp block 13.

[0024] In this embodiment, the adjusting mechanism 7 includes an adjusting rod 6, a positioning hole 8, a hand lever 9, a bidirectional lead screw 10, a nut 11, and an internal threaded block 15. The adjusting rod 6 is disposed on one side of the two sets of metal clamps 1. Positioning holes 8 are equally spaced on the outer side of the adjusting rod 6. An internal threaded block 15 is connected to one side of the metal clamp 1. The bidirectional lead screw 10 is connected inside the internal threaded block 15. The hand lever 9 is connected through the middle of the bidirectional lead screw 10. The nut 11 is connected to the outer side of the bidirectional lead screw 10.

[0025] In this embodiment, the metal clamp 1 is connected to both sides of the bidirectional screw 10 via an internal toothed block 15 connected to one side, and the distance between the internal toothed block 15 and the two sets of metal clamps 1 is adjusted by the bidirectional screw 10.

[0026] In this embodiment, the adjusting rod 6 is connected to the outside of the guide block 12 through positioning holes 8 that are equally spaced on the outside, and the adjusting rod 6 and the guide block 12 are positioned through the positioning holes 8 that are equally spaced.

[0027] In practical applications, this type of insulator replacement clamp includes the following tasks:

[0028] Step 1: Before use, first install both ends of the adjusting rod 6 in the guide block 12, then connect the outer side of the bidirectional screw 10 to the outer side of the inner toothed block 15, and then position the bidirectional screw 10 and the two sets of symmetrically arranged metal clamps 1 on both sides. Before going up to the high altitude, select the appropriate size of the rubber sleeve 3 according to the diameter of the insulator, cut the rubber sleeve 3 into two parts, fix one part of the rubber sleeve 3 to the outer side of the metal clamp 1, and install the other part of the rubber sleeve 3 on the outer side of the side clamp block 13. Position the rubber sleeve 3 and the side clamp block 13 with screws.

[0029] Step 2: Then, according to the length of the insulator, by holding the hand rod 9, the double-acting screw 10 is rotated. The double-acting screw 10 rotates the outer sides of the inner toothed blocks 15 on both sides. At the same time, the adjusting rod 6 is displaced inside the guide block 12, so that the distance between the two sets of metal clamps 1 is greater than the length of the insulator. The notch on one side of the metal clamp 1 is connected to the top and bottom of the insulator. The rubber sleeve 3 inside the positioning through hole 2 is used to position the upper and lower sides of the insulator. The nut 11 is used to position the upper and lower sides of the double-acting screw 10 and the metal clamp 1.

[0030] Step 3: Hold the handle 9 and use it to rotate the double screw 10 so that the metal clamps 1 on both sides are positioned with the upper and lower sides of the insulator. Then insert the screw into the positioning hole 8 and use the screw to position the adjusting rod 6, guide block 12 and metal clamp 1, so as to prevent the metal clamp 1 from shaking on one side after the pitch adjustment is completed.

[0031] Step 4: The operator then attaches the flat iron pieces 4 on the upper and lower sides of the side clamp block 13 to the two sides of the metal clamp 1. By attaching the flat iron pieces 4 to the outside of the metal clamp 1, the rubber sleeves 3 on the outside of the side clamp block 13 are positioned on the upper and lower sides of the insulator. Then, the fasteners 14 on the outside of the flat iron pieces 4 are positioned to the outside of the metal clamp 1, thereby forming a sealed positioning structure between the metal clamp 1 and the side clamp block 13.

[0032] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A clamp for replacing insulators, characterized in that: The device includes a metal clamp (1), a side clamp block (13), and a two-way screw (10). A guide block (12) is connected to one side of the metal clamp (1). A positioning mechanism (5) is provided on the outside of the metal clamp (1). The positioning mechanism (5) selects a rubber sleeve (3) of the appropriate size according to the diameter of the insulator. The top and bottom ends of the insulator are positioned by the metal clamp (1) and the side clamp block (13). An adjustment mechanism (7) is provided on both sides of the metal clamp (1). The adjustment mechanism (7) adjusts the distance between the two sets of metal clamps (1) to meet the positioning of insulators of different lengths and to transfer the load on the insulator to be replaced to the clamp, thereby replacing the insulator.

2. The insulator replacement clamp of claim 1, wherein: The positioning mechanism (5) includes a positioning through hole (2), a rubber sleeve (3), a flat iron sheet (4), a side clamp block (13), and a fastener (14). The positioning through hole (2) is opened through the outside of the metal clamp (1). A rubber sleeve (3) is provided on the outside of the positioning through hole (2). A side clamp block (13) is connected to one side of the rubber sleeve (3). Flat iron sheets (4) are provided on both the upper and lower sides of the side clamp block (13). Fasteners (14) are symmetrically connected to the outside of the flat iron sheets (4).

3. The holder for replacing an insulator according to claim 2, characterized in that: The flat iron sheet (4) is connected to the outside of the metal clamp (1) by fasteners (14) symmetrically connected on the outside.

4. The insulator replacement clamp of claim 1, wherein: The adjusting mechanism (7) includes an adjusting rod (6), a positioning hole (8), a hand lever (9), a two-way screw (10), a nut (11), and an internal threaded block (15). The adjusting rod (6) is located on one side of two sets of metal clamps (1). The adjusting rod (6) has positioning holes (8) evenly spaced on its outer side. The metal clamp (1) is connected to one side of the internal threaded block (15). The internal threaded block (15) is connected to the inside of the internal threaded block (15). The hand lever (9) is connected through the middle of the two-way screw (10). The nut (11) is connected to the outer side of the two-way screw (10).

5. The insulator replacement clamp of claim 4, wherein: The metal clamp (1) is connected to both sides of the bidirectional screw (10) via an internal toothed block (15) connected to one side.

6. The holder for replacing an insulator according to claim 4, wherein: The adjusting rod (6) is connected to the outside of the guide block (12) through positioning holes (8) that are equally spaced on the outside.

Images