Novel buckle type high-voltage post insulator

Abstract

The utility model belongs to the technical field of power equipment, and particularly relates to a novel buckle type high-voltage post insulator, which comprises a body, a mounting bolt, a fastening bolt, a fastening nut and a buckle cover, the mounting bolt is fixedly connected to the bottom of the body for mounting the body; a supporting table is arranged on the top of the body, a mounting table is arranged on one side of the upper end of the supporting table, a first cable groove is formed in the top of the mounting table, and the two radial sides of the first cable groove incline downwards. The fastening bolt is fixed to the upper end of the supporting table, the buckle cover is buckled to the top of the supporting table, the buckle cover is provided with a fastening hole allowing the fastening bolt to penetrate through, the bottom of the buckle cover is provided with a buckling groove, and the fastening nut is installed on the fastening bolt. After being fixed in the fixing mode, the cable is not easy to jump out of the high-voltage post insulator and is safe and reliable, and the structure has better ventilation and drainage performance, so that the aging time can be delayed, and the service life of the cable can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power equipment, and in particular relates to a novel clip-on high-voltage post insulator. Background Art

[0002] The connection between the post insulator and the high-voltage cable is usually made by binding with iron wire through a porcelain bottle. The iron wire binding is unstable and will be used in various environments for a long time. The iron wire is very easy to age and break, and the cable is easy to loosen and jump out of the groove of the insulator, which will cause great safety hazards. Therefore, in response to the above problems, we proposed a new type of clip-on high-voltage post insulator. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the utility model discloses a novel clip-on high-voltage post insulator.

[0004] In order to achieve the above purpose, a technical solution adopted by the utility model is:

[0005] A novel clip-on high-voltage post insulator comprises a body, mounting bolts, fastening bolts, fastening nuts and a clip-on cover;

[0006] The mounting bolts are fixedly connected to the bottom of the body for mounting the body;

[0007] The top of the main body is provided with a support platform, one side of the upper end of the support platform is provided with a mounting platform, the top of the mounting platform is provided with a first cable groove for placing cables, and both radial sides of the first cable groove are inclined downward;

[0008] The fastening bolt is fixed to the upper end of the support platform, the snap cover is snapped on the top of the support platform, the snap cover is provided with a fastening hole for allowing the fastening bolt to pass through, the bottom of the snap cover is provided with a snapping groove for snapping with the mounting platform, and the fastening nut is installed on the fastening bolt to fasten the snap cover to the support platform.

[0009] Furthermore, the mounting platform is provided with a plurality of water guide grooves spaced apart along the axial direction of the first cable groove, the extension direction of the water guide grooves is perpendicular to the axial direction of the first cable groove, the water guide grooves are low at both ends and high in the middle, and the highest point of the water guide grooves is located below the lowest point of the first cable groove.

[0010] Furthermore, a drainage groove is provided at the connection between the mounting platform and the supporting platform on one side close to the fastening bolt, the extension direction of the drainage groove is parallel to the axial direction of the first cable groove, and the plurality of water guide grooves are all connected to the drainage groove.

[0011] Furthermore, the top of the snap-fit ​​groove has a second cable groove matching the first cable groove.

[0012] Furthermore, a plurality of anti-slip protrusions are provided on the inner wall of the second cable groove at intervals along the axial direction of the second cable groove, and an extending direction of the anti-slip protrusions is perpendicular to the axial direction of the second cable groove.

[0013] Furthermore, both ends of the anti-slip protrusion extend to the inner walls on both sides of the buckling groove respectively, and among the plurality of anti-slip protrusions, the interval between each adjacent two anti-slip protrusions is aligned one by one with each water guide groove.

[0014] Furthermore, a limiting protrusion is provided on the upper end of the support platform, and a limiting groove matching the limiting protrusion is provided on the lower end of the snap cover. When the limiting protrusion is inserted into the limiting groove, the snap cover will be restricted from rotating relative to the fastening bolt.

[0015] Furthermore, a plurality of umbrella skirts are provided in the middle of the main body and are spaced apart from each other.

[0016] Furthermore, the mounting bolt is fixedly connected to the center of the bottom of the body.

[0017] Furthermore, the mounting bolts and the fastening bolts are both Dacromet bolts.

[0018] The utility model discloses a novel clip-on high-voltage post insulator, which can stably fix the cable through its own clip-on fixing structure. After being fixed in this way, the cable is not easy to jump out of the high-voltage post insulator, which is safe and reliable. In addition, the structure has good ventilation and drainage performance, which can delay the aging time and increase its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure enlargement at the center A;

[0022] Figure 3 This is a schematic diagram of the main body structure in one embodiment of the utility model;

[0023] Figure 4 for Figure 3 A schematic diagram of the structure enlarged at B in the middle;

[0024] Figure 5 It is a structural schematic diagram of a snap cover in one embodiment of the utility model.

[0025] The meanings of the symbols in the accompanying drawings are:

[0026] Main body 1, support platform 11, mounting platform 12, first cable groove 13, water guide groove 14, drainage groove 15, limiting protrusion 16, umbrella skirt 17, mounting bolt 2, fastening bolt 3, fastening nut 4, snap cover 5, fastening hole 51, buckling groove 52, second cable groove 53, anti-slip protrusion 54, limiting groove 55. DETAILED DESCRIPTION

[0027] The utility model will be further described below in conjunction with the accompanying drawings.

[0028] Reference Figure 1-Figure 5 As shown, the novel clip-on high-voltage post insulator of this embodiment includes a body 1, mounting bolts 2, fastening bolts 3, fastening nuts 4 and a clip cover 5.

[0029] In this embodiment, the mounting bolt 2 is fixed to the center of the bottom of the body 1 for mounting and fastening the body 1 .

[0030] In this embodiment, a support platform 11 is provided on the top of the main body 1, and a mounting platform 12 is provided on one side of the upper end of the support platform 11. A first cable groove 13 for placing cables is provided on the top of the mounting platform 12, and both radial sides of the first cable groove 13 are inclined downward so that the front appearance of the mounting platform 12 is approximately "M" shaped.

[0031] In this embodiment, the fastening bolt 3 is fixed to the upper end of the support platform 11, the snap cover 5 is snapped on the top of the support platform 11, the snap cover 5 is provided with a fastening hole 51 for allowing the fastening bolt 3 to pass through, and the bottom of the snap cover 5 is provided with a snapping groove 52 for snapping with the mounting platform 12, and the fastening nut 4 is installed on the fastening bolt 3 to fasten the snap cover 5 to the support platform 11.

[0032] When supporting and fixing the cable, first unscrew the fastening nut 4, then take out the buckle cover 5 upwards to expose the first cable groove 13, then put the cable in the first cable groove 13, then put the buckle cover 5 on the outside of the fastening bolt 3 through the fastening hole 51, and let the mounting platform 12 buckle with the mounting platform 12 through the buckle groove 52, and finally tighten the fastening nut 4 on the fastening bolt 3, so that the cable can be fastened to the upper end of the body 1 under the extrusion of the buckle cover 5 and the mounting platform 12. This installation method is more convenient than wire binding installation. Due to its high structural strength, it has good anti-aging performance and can adapt to various environments.

[0033] It is worth mentioning that since both radial sides of the first cable groove 13 are inclined downward, when rainwater flows to the radial sides of the first cable groove 13, it will be automatically drained away under the action of gravity. This can reduce the probability of water accumulation in the first cable groove 13, thereby delaying the aging time of the cable to a certain extent.

[0034] In this embodiment, the mounting platform 12 is provided with a plurality of water guide grooves 14 spaced apart along the axial direction of the first cable groove 13. The extending direction of the water guide grooves 14 is perpendicular to the axial direction of the first cable groove 13. The water guide grooves 14 are low at both ends and high in the middle. The highest point of the water guide grooves 14 is located below the lowest point of the first cable groove 13. After such arrangement, when rainwater enters the first cable groove 13, it will flow into the water guide grooves 14 and be discharged through both sides of the water guide grooves 14. In this way, water can be prevented from accumulating in the water guide grooves 14, so as to prevent the water in the water guide grooves 14 from soaking the cables, thereby extending the service life of the cables. It is worth mentioning that this structure will also increase the air permeability of the first cable groove 13, so that the cables can dry quickly after being soaked. In addition, this structure can increase the friction coefficient of the inner side of the first cable groove 13, so that the first cable groove 13 can tightly clamp the cables, thereby improving the fastening strength.

[0035] In this embodiment, a drainage groove 15 is provided at the connection between the mounting platform 12 and the support platform 11 on the side close to the fastening bolt 3. The extension direction of the drainage groove 15 is parallel to the axial direction of the first cable groove 13, and the plurality of water guide grooves 14 are connected to the drainage groove 15. Such a configuration can improve the drainage performance of the side of the mounting platform 12 close to the fastening bolt 3, so that rainwater on this side can be drained smoothly. It is worth mentioning that the water guide groove 14 directly penetrates to the edge of the mounting platform 12 on the side away from the fastening bolt 3, so that rainwater on this side can also be drained smoothly.

[0036] In this embodiment, the top of the buckle groove 52 has a second cable groove 53 that matches the first cable groove 13. Such an arrangement enables the buckle cover 5 to be in close contact with the upper part of the cable, so that it can clamp the cable more firmly.

[0037] In this embodiment, a plurality of anti-skid protrusions 54 are provided at intervals along the axial direction of the second cable groove 53 on the inner wall of the second cable groove 53, and the extending direction of the anti-skid protrusions 54 is perpendicular to the axial direction of the second cable groove 53. Such a configuration can increase the friction coefficient inside the second cable groove 53, so that the second cable groove 53 can tightly clamp the cable, thereby further improving the fixing strength.

[0038] In this embodiment, both ends of the anti-skid protrusion 54 extend to the inner walls of both sides of the buckle groove 52, and among the plurality of anti-skid protrusions 54, the interval between each adjacent two anti-skid protrusions 54 is aligned with each water guide groove 14. Here, the interval between each adjacent two anti-skid protrusions 54 can be regarded as a ventilation groove, so that when the buckle cover 5 is buckled with the support platform 11 to fix the cable, each ventilation groove will be aligned with each water guide groove 14 to form a larger ventilation channel, which can promote the air circulation on the upper and lower sides of the cable, so that the cable can be kept ventilated and dry, and avoid the cable being in a wet state for a long time and accelerating the aging speed.

[0039] In this embodiment, a limiting protrusion 16 is provided at the upper end of the support platform 11, and a limiting groove 55 matching the limiting protrusion 16 is provided at the lower end of the snap cover 5. When the limiting protrusion 16 is inserted into the limiting groove 55, the snap cover 5 is limited from rotating relative to the fastening bolt 3. In this embodiment, the limiting protrusion 16 has a "D"-shaped cross section, and the shape of the limiting groove 55 matches the shape of the limiting protrusion 16. Such shapes can axially constrain each other when plugged into each other, so as to stably position the snap cover 5 and the support platform 11 when they are covered, so that the snap cover 5 and the support platform 11 can be accurately aligned to ensure the installation accuracy of the cable.

[0040] In this embodiment, a plurality of sheds 17 are provided in the middle of the main body 1 at intervals. Such a configuration can ensure the creepage distance from the high voltage end to the low voltage end. At the same time, this design can also improve the bending resistance and tensile strength of the main body 1.

[0041] In this embodiment, the mounting bolts 2 and the fastening bolts 3 are both Dacromet bolts. This type of bolt has good rust resistance and strong aging resistance and can adapt to a variety of environments.

[0042] In summary, the utility model discloses a new type of snap-on high-voltage post insulator, which can stably fix the cable through its own snap-on fixing structure. After being fixed in this way, the cable is not easy to jump out of the high-voltage post insulator, which is safe and reliable, and the structure has good ventilation and drainage performance, which can delay the aging time and increase its service life.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A novel clip-on high-voltage post insulator, comprising a body, mounting bolts, fastening bolts, fastening nuts and a clip cover, characterized in that: The mounting bolts are fixedly connected to the bottom of the body for mounting the body; The top of the main body is provided with a support platform, one side of the upper end of the support platform is provided with a mounting platform, the top of the mounting platform is provided with a first cable groove for placing cables, and both radial sides of the first cable groove are inclined downward; The fastening bolt is fixed to the upper end of the support platform, the snap cover is snapped on the top of the support platform, the snap cover is provided with a fastening hole for the fastening bolt to pass through, the bottom of the snap cover is provided with a snap groove for snapping with the mounting platform, and the fastening nut is installed on the fastening bolt to fasten the snap cover to the support platform; The mounting platform is provided with a plurality of water guide grooves spaced apart along the axial direction of the first cable groove, wherein the extending direction of the water guide grooves is perpendicular to the axial direction of the first cable groove, the water guide grooves are low at both ends and high in the middle, and the highest point of the water guide grooves is located below the lowest point of the first cable groove.

2. A novel clip-on high voltage post insulator according to claim 1, characterized in that: A drainage groove is provided at the connection between the mounting platform and the supporting platform on one side close to the fastening bolt. The extension direction of the drainage groove is parallel to the axial direction of the first cable groove. The plurality of water guide grooves are all connected to the drainage groove.

3. A novel clip-on high voltage post insulator according to claim 1, characterized in that: The top of the buckling groove is provided with a second cable groove matching the first cable groove.

4. A novel clip-on high voltage post insulator according to claim 3, characterized in that: A plurality of anti-slip protrusions are provided on the inner wall of the second cable groove at intervals along the axial direction of the second cable groove, and the extending direction of the anti-slip protrusions is perpendicular to the axial direction of the second cable groove.

5. A novel clip-on high voltage post insulator according to claim 4, characterized in that: The two ends of the anti-slip protrusion extend to the inner walls of the buckling groove on both sides respectively. Among the plurality of anti-slip protrusions, the interval between each adjacent two anti-slip protrusions is aligned with each water guide groove one by one.

6. The novel clip-on high voltage post insulator according to claim 1 is characterized in that: A limiting protrusion is provided on the upper end of the support platform, and a limiting groove matching the limiting protrusion is provided on the lower end of the buckle cover. When the limiting protrusion is inserted into the limiting groove, the buckle cover will be restricted from rotating relative to the fastening bolt.

7. The novel clip-on high voltage post insulator according to claim 1 is characterized in that: A plurality of umbrella skirts are arranged in the middle of the main body and are spaced apart from each other.

8. The novel clip-on high voltage post insulator according to claim 1 is characterized in that: The mounting bolt is fixedly connected to the center of the bottom of the body.

9. The novel clip-on high voltage post insulator according to claim 1 is characterized in that: The mounting bolts and the fastening bolts are both Dacromet bolts.

Images