Electric porcelain insulator capable of preventing cable from loosening

Abstract

The utility model discloses an electric porcelain insulator capable of preventing a cable from loosening, which relates to the field of insulators and comprises a core rod, the top end of the core rod is rotatably connected with a fixed disc, the top end of the fixed disc is fixedly connected with a connecting seat, an umbrella skirt is fixed on the outer side of the core rod, a plurality of first springs are fixed between the bottom end of the fixed disc and the umbrella skirt, and a plurality of second springs are fixed between the bottom end of the fixed disc and the umbrella skirt. A first semicircular pipe is fixed to the top end of the connecting seat, a second semicircular pipe is arranged above the first semicircular pipe, in actual operation, a high-voltage cable can be placed in the first semicircular pipe and the second semicircular pipe, the first semicircular pipe and the second semicircular pipe can clamp and fix the cable, and the high-voltage cable can be placed in the first semicircular pipe and the second semicircular pipe. In addition, the plurality of spikes in the first semicircular pipe and the second semicircular pipe can penetrate into the high-voltage cable in the process of pressing the cable, so that the contact area with the high-voltage cable is increased, the fixing strength of the cable is improved, and the cable can be prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the field of insulators, in particular to an electric porcelain insulator which can prevent a cable from loosening. Background Art

[0002] Insulators are devices installed between conductors of different potentials or between conductors and grounded components, and are able to withstand voltage and mechanical stress. Insulators are of various types and shapes. Although the structures and appearances of different types of insulators are quite different, they are all composed of two major parts: insulating parts and connecting fittings. Insulators are a special type of insulating control that can play an important role in overhead transmission lines.

[0003] Existing insulators are installed on utility poles to support cables. However, due to the limited contact area between the top of the insulator and the cable, most of the connections between the cable and the insulator are fixed by pressing, which is easily loosened due to the influence of wind.

[0004] Therefore, it is necessary to propose a porcelain insulator that can prevent the cable from loosening to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an electric porcelain insulator which can prevent the loosening of electric cables, so as to solve the problem that the existing insulators are installed on electric poles to support the cables, but the contact area between the top of the insulator and the cable is limited, and the connection between the cable and the insulator is mostly fixed by pressing, which is easily affected by wind and becomes loose.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric porcelain insulator capable of preventing a cable from loosening, comprising a core rod, the top end of the core rod being rotatably connected to a fixed disk, the top end of the fixed disk being fixedly connected to a connecting seat, an umbrella skirt being fixed to the outer side of the core rod, a plurality of first springs being fixed between the bottom end of the fixed disk and the umbrella skirt, a first semicircular tube being fixed to the top end of the connecting seat, a second semicircular tube being arranged above the first semicircular tube, a plurality of spikes being fixed to opposite sides of the first semicircular tube and the second semicircular tube, the plurality of spikes being evenly distributed around the centers of the first semicircular tube and the second semicircular tube, and a top cover being engaged with the outer side of the connecting seat.

[0007] Preferably, two fixing columns are fixed to the top of the connecting seat, and second springs are sleeved on the outer sides of the two fixing columns. A lower pressure block is provided on the top of the two second springs, and the lower pressure block is sleeved on the two fixing columns, and the second semicircular tube is fixed to the bottom end of the lower pressure block. The top ends of the outer sides of the two fixing columns are threaded with nuts, and the two nuts are pressed tightly against the top ends of the lower pressure blocks.

[0008] Preferably, a slot for the first semicircular tube and the second semicircular tube to pass through is formed at the bottom end of the top cover.

[0009] Preferably, two fixing screws are provided on the outer side of the top cover, and a fixing hole is opened on the outer side of the connecting seat, and one end of the two fixing screws is threadedly engaged with the inside of the corresponding fixing holes.

[0010] Preferably, a plurality of umbrella skirts are provided, a spacing is left between each pair of umbrella skirts, and the plurality of umbrella skirts are all sleeved on the outer side of the core rod.

[0011] Preferably, both ends of the first semicircular tube and the second semicircular tube extend out of the connecting seat.

[0012] Technical effects and advantages of the utility model:

[0013] 1. In the actual operation of the utility model, the high-voltage cable can be placed inside the first semicircular tube and the second semicircular tube, and the first semicircular tube and the second semicircular tube can clamp and fix the cable. In addition, the multiple spikes inside the first semicircular tube and the second semicircular tube can penetrate into the high-voltage cable during the process of pressing the cable, thereby increasing the contact area with the high-voltage cable, improving the fixing strength of the cable, and preventing the cable from loosening.

[0014] 2. In addition, after the cable is fixed, when the cable is affected by wind, the wind will drive the fixing plate to rotate slightly. When the wind stops, the tension of the first spring will automatically drive the fixing plate to reset, reducing the shaking of the cable caused by wind. During installation, the fixing plate can also be rotated so that the first semicircular tube and the second semicircular tube can adapt to the installation direction of the cable, making the installation easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of an electric porcelain insulator which can prevent a cable from loosening.

[0016] Figure 2 For this utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0017] In the figure: 1, core rod; 2, umbrella skirt; 3, fixing plate; 4, first spring; 5, connecting seat; 6, first semicircular tube; 7, top cover; 8, fixing column; 9, lower pressure block; 10, nut; 11, second semicircular tube; 12, spike; 13, fixing screw; 14, slot. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1 - Figure 2 The electric porcelain insulator shown can prevent the loosening of the cable, comprises a core rod 1, the top end of the core rod 1 is rotatably connected to a fixing plate 3, the top end of the fixing plate 3 is fixedly connected to a connecting seat 5, an outer side of the core rod 1 is fixed with an umbrella skirt 2, a plurality of umbrella skirts 2 are provided, and a spacing is left between each two umbrella skirts 2, and the plurality of umbrella skirts 2 are all sleeved on the outer side of the core rod 1, and the setting of the umbrella skirts 2 provides the necessary creepage distance and can protect the core rod 1 from environmental influences and wind deflection.

[0020] A plurality of first springs 4 are fixed between the bottom end of the fixing plate 3 and the umbrella skirt 2, a first semicircular tube 6 is fixed to the top end of the connecting seat 5, a second semicircular tube 11 is arranged above the first semicircular tube 6, a plurality of spikes 12 are fixed on the side opposite to the first semicircular tube 6 and the second semicircular tube 11, the plurality of spikes 12 are evenly distributed around the center of the first semicircular tube 6 and the second semicircular tube 11, and a top cover 7 is engaged with the outer side of the connecting seat 5.

[0021] Two fixing columns 8 are fixed to the top of the connecting seat 5, and second springs are sleeved on the outer sides of the two fixing columns 8. A lower pressure block 9 is arranged on the top of the two second springs. The lower pressure block 9 is sleeved on the two fixing columns 8, and the second semicircular tube 11 is fixed to the bottom end of the lower pressure block 9. The top ends of the outer sides of the two fixing columns 8 are threadedly matched with nuts 10, and the two nuts 10 are pressed tightly against the top ends of the lower pressure blocks 9.

[0022] In the actual operation of the utility model, the high-voltage cable can be placed inside the first semicircular tube 6 and the second semicircular tube 11, and the first semicircular tube 6 and the second semicircular tube 11 can clamp and fix the cable. In addition, the multiple spikes 12 inside the first semicircular tube 6 and the second semicircular tube 11 can penetrate into the high-voltage cable during the process of pressing the cable, thereby increasing the contact area with the high-voltage cable, improving the fixing strength of the cable, and preventing the cable from loosening.

[0023] In addition, after the cable is fixed, when the cable is affected by wind, the wind will drive the fixing plate 3 to rotate slightly. When the wind stops, the tension of the first spring 4 will automatically drive the fixing plate 3 to reset, reducing the shaking of the cable caused by wind.

[0024] In addition, during installation, the fixing plate 3 may also be rotated so that the first semicircular tube 6 and the second semicircular tube 11 can adapt to the installation direction of the cable, making the installation easier.

[0025] A slot 14 is formed at the bottom of the top cover 7 for the first semicircular tube 6 and the second semicircular tube 11 to pass through.

[0026] Two fixing screws 13 are arranged on the outside of the top cover 7, and fixing holes are opened on the outside of the connecting seat 5. One end of the two fixing screws 13 is threadedly matched with the inside of the corresponding fixing holes. The top cover 7 can protect the top of the device, reduce the impact of rain and hail, and reduce the corrosive effect of the environment.

[0027] Both ends of the first semicircular tube 6 and the second semicircular tube 11 extend out of the connecting seat 5 .

Claims

1. An electric porcelain insulator capable of preventing a cable from loosening, comprising a core rod (1), characterized in that: The top end of the mandrel (1) is rotatably connected to a fixing disk (3), the top end of the fixing disk (3) is fixedly connected to a connecting seat (5), an outer side of the mandrel (1) is fixed with an umbrella skirt (2), a plurality of first springs (4) are fixed between the bottom end of the fixing disk (3) and the umbrella skirt (2), a first semicircular tube (6) is fixed to the top end of the connecting seat (5), a second semicircular tube (11) is arranged above the first semicircular tube (6), a plurality of spikes (12) are fixed on opposite sides of the first semicircular tube (6) and the second semicircular tube (11), the plurality of spikes (12) are evenly distributed around the center of the first semicircular tube (6) and the second semicircular tube (11), and a top cover (7) is engaged with the outer side of the connecting seat (5).

2. The electric porcelain insulator capable of preventing a cable from loosening according to claim 1 is characterized in that: Two fixing columns (8) are fixed at the top of the connecting seat (5), and second springs are sleeved on the outer sides of the two fixing columns (8). A lower pressing block (9) is arranged at the top of the two second springs. The lower pressing block (9) is sleeved on the two fixing columns (8), and the second semicircular tube (11) is fixed to the bottom end of the lower pressing block (9). The top ends of the outer sides of the two fixing columns (8) are threadedly matched with nuts (10), and the two nuts (10) are pressed tightly against the top ends of the lower pressing blocks (9).

3. The electric porcelain insulator capable of preventing a cable from loosening according to claim 1 is characterized in that: The bottom end of the top cover (7) is provided with a slot (14) for the first semicircular tube (6) and the second semicircular tube (11) to pass through.

4. The electric porcelain insulator capable of preventing a cable from loosening according to claim 1 is characterized in that: Two fixing screws (13) are arranged on the outer side of the top cover (7), and a fixing hole is opened on the outer side of the connecting seat (5), and one end of the two fixing screws (13) is threadedly engaged with the inside of the corresponding fixing hole.

5. The electric porcelain insulator capable of preventing a cable from loosening according to claim 1 is characterized in that: A plurality of umbrella skirts (2) are provided, with a spacing between each pair of umbrella skirts (2), and the plurality of umbrella skirts (2) are all sleeved on the outside of the core rod (1).

6. The electric porcelain insulator capable of preventing a cable from loosening according to claim 1, characterized in that: Both ends of the first semicircular tube (6) and the second semicircular tube (11) extend out of the connecting seat (5).

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