Bird damage prevention grading ring type insulator

Abstract

The utility model relates to an insulator, and particularly discloses a bird damage prevention grading ring type insulator, which comprises an insulating core rod, an umbrella skirt arranged on the outer side of the insulating core rod, an arc-shaped tray arranged above the insulating core rod, a fixed seat arranged at the upper end of the insulating core rod, an upper pressing plate arranged above the fixed seat and detachably connected with the fixed seat. Threading grooves are formed in the sides, close to each other, of the upper pressing plate and the fixing base, a fixing sleeve is arranged at the lower end of the arc-shaped tray, a first rotating sleeve is arranged outside the fixing sleeve in a sleeving mode, a second rotating sleeve is arranged outside the fixing base, and wire sleeve structures are arranged on the sides, close to each other, of the first rotating sleeve and the second rotating sleeve. After the upper pressing plate and the fixing base complete fixation of the cable, the first rotary sleeve is rotated downwards, the second rotary sleeve is rotated upwards, the first rotary sleeve and the second rotary sleeve are screwed tightly, the cable sleeve structure can protect the part, penetrating out of the upper pressing plate and the fixing base, of the cable, the assembly safety of the joint of the insulator and the cable is improved, and due to the multi-section assembly mode, the assembly efficiency is improved. And a user can conveniently replace all parts.

Description

Technical Field

[0001] The utility model relates to an insulator, in particular to a bird-damage-proof equalizing ring insulator. Background Art

[0002] Insulators have two functions: one is to firmly support and fix the current-carrying conductor, and the other is to form a good insulation between the current-carrying conductor and the ground, that is, fixing and insulating. Fixing means that one end is fixed on the pole tower or support object, and the other end is fixed on the conductor. Insulation means that the conductor is insulated from the pole tower and other ground.

[0003] The traditional grading ring insulator is mainly composed of two parts: the insulator body and the core body. The umbrella extends from the middle insulating part of the insulator. The umbrella is the protruding insulating part on the insulator body to increase the creepage distance. The core body is the center of the insulator and provides mechanical properties for the insulator. A gland is also provided at the upper end of the insulator body. The gland is used to support and fix the cable. The common fixing method is to fix the arc pressure plate above the arc groove opened at the upper end of the insulator body. After the cable passes through the arc groove, the arc pressure plate is fixed to the upper end of the insulator body by a fixing bolt. The cable passes through both ends of the arc pressure plate. During the assembly process, if the cable bends during stretching, the edge of the arc pressure plate will often squeeze the wire harness, which will lead to increased wear of the outer coat on the surface of the wire harness, affecting the work safety at the assembly of the wire harness and the insulator. Utility Model Content

[0004] In view of the above problems, the utility model proposes a bird-proof equalizing ring insulator to solve the shortcomings of existing insulators. During the assembly process, if the cable is bent when stretched, the edge of the arc pressure plate will often squeeze the wire harness, which will lead to increased wear on the surface of the wire harness and affect the working safety of the assembly between the wire harness and the insulator.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: an anti-bird damage grading ring insulator, comprising an insulating core rod, an outer side of the insulating core rod is provided with an shed, an arc tray is provided above the insulating core rod, and the diameter of the arc tray is greater than the maximum diameter of the shed;

[0006] A fixing seat is arranged at the upper end of the insulating core rod, an upper pressing plate is arranged above the fixing seat, the upper pressing plate is detachably connected to the fixing seat, and a threading groove is arranged on one side of the upper pressing plate and the fixing seat close to each other;

[0007] A fixing sleeve is provided at the lower end of the arc-shaped tray, and the lower end of the fixing sleeve is detachably connected to the upper pressure plate, a first rotating sleeve is provided on the outer side of the fixing sleeve, and the inner wall of the first rotating sleeve is threadedly matched with the fixing sleeve and the upper pressure plate, a second rotating sleeve is provided on the outer side of the fixing seat, and the inner wall of the second rotating sleeve is threadedly matched with the fixing seat, and a wire sleeve structure for protecting the cables passing through the wire threading groove is provided on the side where the first rotating sleeve and the second rotating sleeve are close to each other.

[0008] A further improvement is that at least two adjusting bolts are installed at the upper end of the upper pressing plate, the adjusting bolts penetrate the upper pressing plate and are threadedly connected to the bolt holes opened at the upper end of the fixing seat, and the adjusting bolts are threadedly connected to the upper pressing plate.

[0009] A further improvement is that a first threaded surface is provided on the outer side of the fixing sleeve, and a second threaded surface is provided on the outer side of the upper pressure plate. After the lower end of the fixing sleeve contacts the upper end of the upper pressure plate, the first threaded surface is connected to the second threaded surface, and the first threaded surface is threadedly connected to the third threaded surface provided on the inner side of the first rotating sleeve.

[0010] A further improvement is that a fourth threaded surface is provided on the outer side of the fixing seat, and the fourth threaded surface is threadedly connected with a fifth threaded surface provided on the inner side of the second rotating sleeve.

[0011] A further improvement is that the wire sleeve structure includes a first rubber ring and a second rubber ring, the first rubber ring is rotatably connected to the lower end of the first rotary sleeve, the first rubber ring is sleeved on the outside of the fixed sleeve and is slidably connected to the fixed sleeve and the upper pressure plate, the second rubber ring is rotatably connected to the upper end of the second rotary sleeve, the second rubber ring is rotatably connected to the upper end of the second rotary sleeve, the second rubber ring is sleeved on the outside of the fixed seat and is slidably connected to the fixed seat, the first rubber ring is provided with a first arc groove on the side facing the second rubber ring, and the second rubber ring is provided with a second arc groove on the side facing the first rubber ring.

[0012] Further improvement lies in that: the upper end of the fixed sleeve is fixedly connected to the lower end of the arc tray, the lower end of the fixed sleeve is provided with a pipe plug, the lower end of the pipe plug is fixedly connected to the upper end of the upper pressure plate, the outer wall of the pipe plug is provided with a sixth threaded surface, and the sixth threaded surface is threadedly connected to the seventh threaded surface provided on the inner side of the fixed sleeve.

[0013] The beneficial effects of the utility model are as follows: after the upper pressure plate and the fixing seat complete the fixation of the cable, the first rotary sleeve is rotated downward, and the second rotary sleeve is rotated upward to tighten the first rotary sleeve and the second rotary sleeve. The wire sleeve structure will protect the part of the cable that passes through the upper pressure plate and the fixing seat, thereby improving the assembly safety of the connection between the insulator and the cable. The multi-stage assembly method makes it convenient for users to replace various components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the insulating core rod in the utility model.

[0015] Figure 2This utility model Figure 1 A magnified view of the structure at center.

[0016] Figure 3 It is a structural diagram of the upper pressing plate in the utility model.

[0017] Figure 4 It is a structural diagram of the first rubber ring in the utility model.

[0018] Among them: 1. arc tray; 2. insulating core rod; 3. umbrella skirt; 4. first arc groove; 5. second arc groove; 6. fixing sleeve; 7. upper pressure plate; 8. fixing seat; 9. first rotary sleeve; 10. second rotary sleeve; 11. pipe plug; 12. adjusting bolt; 13. threading groove; 14. first rubber ring; 15. second rubber ring. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0020] according to Figure 1 , 2 As shown in Figures 3 and 4, a bird-damage-proof equalizing ring insulator is proposed in this embodiment, including an insulating core rod 2, an outer side of the insulating core rod 2 is provided with an umbrella skirt 3, and an arc-shaped tray 1 is provided above the insulating core rod 2, and the diameter of the arc-shaped tray 1 is larger than the maximum diameter of the umbrella skirt 3; bird droppings falling from the sky will be blocked by the arc-shaped tray 1 and will not fall on the umbrella skirt 3.

[0021] A fixing seat 8 is provided at the upper end of the insulating core rod 2, and an upper pressing plate 7 is provided above the fixing seat 8. The upper pressing plate 7 and the fixing seat 8 are detachably connected, and a threading groove 13 is provided on the side where the upper pressing plate 7 and the fixing seat 8 are close to each other; the cable passes through the threading groove 13 provided between the upper pressing plate 7 and the fixing seat 8, and when the upper pressing plate 7 and the fixing seat 8 are matched, the cable will also be fixed.

[0022] A fixing sleeve 6 is provided at the lower end of the arc-shaped tray 1, and the lower end of the fixing sleeve 6 is detachably connected to the upper pressing plate 7. A first rotary sleeve 9 is provided on the outer side of the fixing sleeve 6, and the inner side wall of the first rotary sleeve 9 is threadedly matched with the fixing sleeve 6 and the upper pressing plate 7. A second rotary sleeve 10 is provided on the outer side of the fixing seat 8, and the inner side wall of the second rotary sleeve 10 is threadedly matched with the fixing seat 8. A wire sleeve structure for protecting the cables passing through the wire threading groove 13 is provided on the side where the first rotary sleeve 9 and the second rotary sleeve 10 are close to each other. After the upper pressing plate 7 and the fixing seat 8 complete the fixing of the cables, the first rotary sleeve 9 on the outer side of the fixing sleeve 6 is rotated downward, and the second rotary sleeve 10 on the outer side of the fixing seat 8 is rotated upward, and the first rotary sleeve 9 and the second rotary sleeve 10 are tightened. The wire sleeve structure will protect the part of the cable passing through the upper pressing plate 7 and the fixing seat 8. The multi-stage assembly method is convenient for users to replace various components.

[0023] The cable passes through the threading groove 13 opened between the upper pressing plate 7 and the fixing seat 8. The upper pressing plate 7 fixes the cable passing through the threading groove 13 by pressing down to fit the fixing seat 8. Specifically, at least two adjusting bolts 12 are assembled on the upper end of the upper pressing plate 7. The adjusting bolts 12 penetrate the upper pressing plate 7 and are threadedly connected with the bolt holes opened on the upper end of the fixing seat 8. The adjusting bolts 12 are threadedly connected with the upper pressing plate 7. The assembly position of the adjusting bolts 12 is staggered from the threading groove 13. After the cable passes through the threading groove 13, the adjusting bolts 12 are screwed, and the adjusting bolts 12 are screwed into the fixing seat 8 and press the upper pressing plate 7 on the upper end of the fixing seat 8. In order to protect the cable, a gasket can be added to the threading groove 13 to prevent the cable skin from being excessively squeezed.

[0024] Regarding the matching mode between the fixed sleeve 6, the upper pressing plate 7 and the first rotating sleeve 9: the fixed sleeve 6 is provided with a first threaded surface on the outside, and the upper pressing plate 7 is provided with a second threaded surface on the outside. After the lower end of the fixed sleeve 6 contacts the upper end of the upper pressing plate 7, the first threaded surface is connected with the second threaded surface, and the first threaded surface is threadedly connected with the third threaded surface provided on the inside of the first rotating sleeve 9. The first rotating sleeve 9 is threadedly connected to the outside of the fixed sleeve 6. When the lower end of the fixed sleeve 6 is aligned with the upper end of the upper pressing plate 7, the first rotating sleeve 9 can be screwed onto the second threaded surface on the outside of the upper pressing plate 7 along the first threaded surface on the outside of the fixed sleeve 6.

[0025] Regarding the matching mode between the fixing seat 8 and the second rotary sleeve 10: a fourth threaded surface is provided on the outer side of the fixing seat 8, and the fourth threaded surface is threadedly connected with a fifth threaded surface provided on the inner side of the second rotary sleeve 10. The second rotary sleeve 10 is also threadedly connected, and is sleeved on the outer side of the fixing seat 8, so no further explanation is given.

[0026] When the first rotary sleeve 9 and the second rotary sleeve 10 are close to each other, the wire sleeve structure will protect the cables passing through the wire threading groove 13. Specifically, the wire sleeve structure includes a first rubber ring 14 and a second rubber ring 15. The first rubber ring 14 is rotatably connected to the lower end of the first rotary sleeve 9, the first rubber ring 14 is sleeved on the outside of the fixed sleeve 6 and is slidably connected to the fixed sleeve 6 and the upper pressure plate 7, the second rubber ring 15 is rotatably connected to the upper end of the second rotary sleeve 10, the second rubber ring 15 is rotatably connected to the upper end of the second rotary sleeve 10, the second rubber ring 15 is sleeved on the outside of the fixed seat 8 and is slidably connected to the fixed seat 8, the first rubber ring 14 is provided with a first arc groove 4 on the side facing the second rubber ring 15, and the second rubber ring 15 is provided with a second arc groove 5 on the side facing the first rubber ring 14. After the cable passes through the threading groove 13 and the upper pressure plate 7 and the fixing seat 8 complete the fixation of the cable, the first rotary sleeve 9 is rotated onto the upper pressure plate 7, and the first rubber ring 14 at the lower end of the first rotary sleeve 9 falls down, and the first arc groove 4 at the lower end of the first rubber ring 14 will fit on the upper half of the cable, and the second rotary sleeve 10 is rotated upward, and the second rubber ring 15 at the upper end of the second rotary sleeve 10 approaches the first rubber ring 14, and the second arc groove 5 on the second rubber ring 15 will fit on the upper half of the cable, and the first rotary sleeve 9 and the second rotary sleeve 10 are tightened to protect the part of the cable passing through the upper pressure plate 7 and the fixing seat 8, so as to have higher reliability.

[0027] In order to facilitate the operators to assemble the arc-shaped pallet 1, the fixing sleeve 6 is installed at the lower end of the arc-shaped pallet 1 and fixed to the upper pressing plate 7 by a detachable connection method. Specifically, the upper end of the fixing sleeve 6 is fixedly connected to the lower end of the arc-shaped pallet 1, and the lower end of the fixing sleeve 6 is provided with a pipe plug 11, and the lower end of the pipe plug 11 is fixedly connected to the upper end of the upper pressing plate 7. The outer wall of the pipe plug 11 is provided with a sixth threaded surface, and the sixth threaded surface is threadedly connected with the seventh threaded surface provided on the inner side of the fixing sleeve 6. The fixing sleeve 6 also adopts a threaded connection method to fix the upper pressing plate 7 to the lower end of the fixing sleeve 6. During assembly, it is only necessary to screw the pipe plug 11 at the upper end of the upper pressing plate 7 into the fixing sleeve 6. The adjusting bolt 12 is located in the middle of the pipe plug 11, and the fixing sleeve 6 sleeved on the outer side of the pipe plug 11 also plays a protective role for the adjusting bolt 12.

[0028] Working principle: an arc tray 1 is arranged above the insulating core rod 2, and the diameter of the arc tray 1 is larger than the maximum diameter of the shed 3; bird droppings falling from the sky will be blocked by the arc tray 1 and will not fall on the shed 3. After the upper pressing plate 7 and the fixing seat 8 complete the fixing of the cable, the first rotary sleeve 9 on the outside of the fixing sleeve 6 is rotated downward, and the second rotary sleeve 10 on the outside of the fixing seat 8 is rotated upward, and the first rotary sleeve 9 and the second rotary sleeve 10 are tightened. The wire sleeve structure will protect the part of the cable passing through the upper pressing plate 7 and the fixing seat 8, thereby improving the assembly safety of the connection between the insulator and the cable.

[0029] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bird-damage-proof grading ring insulator, comprising an insulating core rod (2), wherein an outer side of the insulating core rod (2) is provided with a shed skirt (3), characterized in that: An arc-shaped tray (1) is provided above the insulating core rod (2), and the diameter of the arc-shaped tray (1) is greater than the maximum diameter of the shed (3); A fixing seat (8) is provided at the upper end of the insulating core rod (2), an upper pressing plate (7) is provided above the fixing seat (8), the upper pressing plate (7) and the fixing seat (8) are detachably connected, and a threading groove (13) is provided on one side of the upper pressing plate (7) and the fixing seat (8) close to each other; The lower end of the arc-shaped tray (1) is provided with a fixing sleeve (6), and the lower end of the fixing sleeve (6) is detachably connected to the upper pressure plate (7). The outer side of the fixing sleeve (6) is provided with a first rotating sleeve (9), and the inner side wall of the first rotating sleeve (9) is threadedly matched with the fixing sleeve (6) and the upper pressure plate (7). The outer side of the fixing seat (8) is provided with a second rotating sleeve (10), and the inner side wall of the second rotating sleeve (10) is threadedly matched with the fixing seat (8). The first rotating sleeve (9) and the second rotating sleeve (10) are provided with a wire sleeve structure for protecting the wire passing through the wire threading groove (13) on one side close to each other.

2. The bird damage prevention grading ring insulator according to claim 1, characterized in that: At least two adjusting bolts (12) are mounted on the upper end of the upper pressure plate (7). The adjusting bolts (12) penetrate the upper pressure plate (7) and are threadedly connected to bolt holes provided at the upper end of the fixing seat (8). The adjusting bolts (12) are threadedly connected to the upper pressure plate (7).

3. The bird damage prevention grading ring insulator according to claim 1, characterized in that: The fixing sleeve (6) has a first threaded surface on its outer side, and the upper pressure plate (7) has a second threaded surface on its outer side. After the lower end of the fixing sleeve (6) contacts the upper end of the upper pressure plate (7), the first threaded surface is connected to the second threaded surface, and the first threaded surface is threadedly connected to a third threaded surface provided on the inner side of the first rotating sleeve (9).

4. The bird damage prevention grading ring insulator according to claim 1, characterized in that: A fourth threaded surface is provided on the outer side of the fixing seat (8), and the fourth threaded surface is threadedly connected to a fifth threaded surface provided on the inner side of the second rotating sleeve (10).

5. The bird damage prevention grading ring insulator according to claim 1, characterized in that: The wire sleeve structure comprises a first rubber ring (14) and a second rubber ring (15), wherein the first rubber ring (14) is rotatably connected to the lower end of the first rotary sleeve (9), the first rubber ring (14) is sleeved on the outer side of the fixed sleeve (6) and is slidably connected to the fixed sleeve (6) and the upper pressure plate (7), the second rubber ring (15) is rotatably connected to the upper end of the second rotary sleeve (10), the second rubber ring (15) is rotatably connected to the upper end of the second rotary sleeve (10), the second rubber ring (15) is sleeved on the outer side of the fixed seat (8) and is slidably connected to the fixed seat (8), the first rubber ring (14) is provided with a first arc groove (4) on a side facing the second rubber ring (15), and the second rubber ring (15) is provided with a second arc groove (5) on a side facing the first rubber ring (14).

6. The bird damage prevention grading ring insulator according to claim 1, characterized in that: The upper end of the fixing sleeve (6) is fixedly connected to the lower end of the arc-shaped tray (1), the lower end of the fixing sleeve (6) is provided with a pipe plug (11), the lower end of the pipe plug (11) is fixedly connected to the upper end of the upper pressure plate (7), the outer wall of the pipe plug (11) is provided with a sixth threaded surface, and the sixth threaded surface is threadedly connected to a seventh threaded surface provided on the inner side of the fixing sleeve (6).

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