Hard insulating sheath with elastic end sleeves for double porcelain bottles chargeable

Abstract

The utility model relates to a kind of hard insulation sheath of double porcelain bottle equipped with elastic end sleeve, which can be charged installation, including two porcelain bottle sleeves for wrapping the top of porcelain bottle, outer wire sleeve for wrapping wire is provided on one side of each porcelain bottle sleeve, and telescopic wire sleeve is provided on the other side of each porcelain bottle sleeve;Opening corresponding with the upper part of porcelain bottle is provided at the lower end of porcelain bottle sleeve, slits passing through the opening of the lower end of porcelain bottle sleeve are provided at the lower edge of outer wire sleeve and the telescopic wire sleeve, and downwardly extending butt edges are respectively provided at both sides of the slits;Mounting plate is provided on each porcelain bottle sleeve;Clamp plate is mounted on the inner side of both butt edges of outer wire sleeve and wire inner sleeve;Elastic end sleeve is respectively mounted on the outer end of each wire sleeve and wrapped on the outer end of the wire sleeve;The utility model has the advantages that by mounting an elastic end sleeve on the outer end of each wire sleeve, the damage of wire by the outer end of wire sleeve is avoided, the service life of wire is prolonged, and the safety of power transmission is improved.

Description

Technical Field

[0001] This utility model relates to a double porcelain insulator rigid insulating sleeve with elastic end sleeve that can be installed under live conditions. It is mainly used to install on the top of two parallel porcelain insulators on a utility pole and on the power line supported by them, to prevent rain and snow from entering and birds from building nests, thus preventing damage to the binding wire between the top of the porcelain insulator and the power line, as well as to the power line itself. Background Technology

[0002] Power lines are typically erected on utility poles 16, with crossarms 15 fixed to the poles 16. Power lines 13 are supported on the crossarms 15 by two parallel porcelain insulators 14 (see reference). Figure 11 The power line 13 is usually tied to the top of the porcelain insulator 14 with binding wire (usually bare aluminum wire). The binding wire and the adjacent power line are prone to corrosion under long-term rain and snow erosion, and may even break in severe cases. Birds often build nests or perch on the top of the porcelain insulator, and bird nests and bird droppings can cause corrosion damage to the binding wire and the power line, which will have an adverse impact on the safe operation of the power line.

[0003] To address the aforementioned problems, I hereby propose an improved rigid insulating sleeve for bird protection on utility poles, capable of live installation. Its structure includes two porcelain sleeves for covering the top of the porcelain insulators. On one side of each sleeve is an outer wire sleeve for wrapping the electrical wire, and on the other side of each sleeve are interlocking telescopic wire sleeves symmetrically arranged with the outer wire sleeve. At the lower end of each sleeve is an opening corresponding to the upper part of the porcelain insulator. At the lower edge of the outer wire sleeve and the telescopic wire sleeve, there is a slit penetrating the opening at the lower end of the sleeve. On both sides of this slit are downwardly extending mating edges. The telescopic wire sleeve consists of an outer wire sleeve and an inner wire sleeve. The end of the outer wire sleeve is coaxially fitted onto the outside of the end of the inner wire sleeve, allowing for axial telescopic sliding. Each sleeve has a mounting plate with mounting holes. The cross-section of the mating edges on both sides is V-shaped, and on each opposite side of the two mating edges, a clamping plate matching the shape of the mating edge is connected via an elastic body.

[0004] The disadvantages of this insulating sleeve are: because it is made of rigid insulating material, the two ends of the wire sleeve are prone to causing dents (indentations) on the aluminum power lines, especially when the power lines sway under the force of the wind, which affects the safety of power transmission; the mounting plate is located on the top of the porcelain insulator sleeve, off the center of gravity of the half, and is prone to tilting and slipping during installation, causing trouble for use. Summary of the Invention

[0005] This invention provides a rigid insulating sleeve with elastic end caps for double porcelain insulators that can be installed under energized conditions, in order to solve the aforementioned problems existing in the prior art.

[0006] The technical solution of this utility model is as follows: a double porcelain insulator rigid insulating sleeve with elastic end sleeves that can be installed under live conditions includes two porcelain insulator sleeves for wrapping the top of the porcelain insulator. On one side of each porcelain insulator sleeve is an outer wire sleeve for wrapping an electrical wire, and on the other side of each porcelain insulator sleeve are retractable wire sleeves that are symmetrically arranged and interlocked with each other, corresponding to the outer wire sleeve. An opening corresponding to the upper part of the porcelain insulator is provided at the lower end of each porcelain insulator sleeve. A slit penetrating the lower end opening of the porcelain insulator sleeve is provided at the lower edge of both the outer wire sleeve and the retractable wire sleeve. A downwardly extending mating edge is provided on each side of the slit. The retractable wire sleeve consists of an outer wire sleeve and an inner wire sleeve. The end of the outer wire sleeve is coaxially fitted outside the end of the inner wire sleeve, allowing for axial retraction and sliding. The outer and inner sheaths of the wire are equipped with a mating edge identical to the mating edge on their lower sides. The cross-sections of the mating edges on both sides of the outer wire sheath and the mating edges on both sides of the outer and inner wire sheaths are all V-shaped. A clamping plate matching the shape of the mating edge is connected to the inner side of each mating edge of the outer wire sheath via an elastic body. A corresponding middle clamping plate is connected to each of the two mating edges of the inner wire sheath via an elastic body on opposite sides. The insulating sheath is made of rigid insulating material. The outer wire sheath is characterized by having an elastic end sleeve covering the outer end of each outer wire sheath. A mounting plate with mounting holes is provided at the top of each outer wire sheath.

[0007] The advantages of this invention are: by installing an elastic end sleeve at the outer end of each outer wire sleeve, the wire is prevented from being damaged by the outer end of the wire sleeve, thus extending the service life of the wire and improving the safety of power transmission. Only one mounting plate is set on the outer wire sleeve (located in the middle or near the center of gravity), eliminating the need for auxiliary mounting plates, simplifying the structure, saving costs, and preventing tilting during installation, making installation convenient. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural schematic diagram (oblique top view, partially exploded) of an embodiment of the present utility model;

[0009] Figure 2 From Figure 1 A perspective structural diagram in the lower left corner;

[0010] Figure 3 yes Figure 1 A schematic diagram of the exploded structure (the elastic end sleeve has been assembled on the outer wire sleeve);

[0011] Figure 4 yes Figure 1 A schematic diagram of the assembled side structure;

[0012] Figure 5 yes Figure 3Enlarged view of the three-dimensional structure of the set of clamps and coil springs assembled on the left side of the middle section;

[0013] Figure 6 This is a three-dimensional structural diagram of a set of central clamping plates and helical springs assembled according to this utility model;

[0014] Figure 7 yes Figure 5 or Figure 6 A front view of one end;

[0015] Figure 8 yes Figure 4 Structural view at section AA in the middle;

[0016] Figure 9 This is a three-dimensional structural diagram of the mounting rod used during installation in the above embodiments;

[0017] Figure 10 This is a three-dimensional structural diagram of the aforementioned mounting rod in use;

[0018] Figure 11 This is a side view of the insulating sleeve of this utility model installed on a double porcelain insulator on a utility pole.

[0019] Explanation of reference numerals in the attached drawings: 1. Porcelain insulator sleeve; 2. Outer wire sleeve; 21. Outer flange; 22. Wire outer sleeve; 23. Wire inner sleeve; 24. Reinforcing rib; 3. Butt joint edge; 31. Through hole; 4. Mounting plate; 41. Mounting hole; 5. Clamping plate; 51. Plug; 5'. Middle clamping plate; 6. Elastic end sleeve; 61. Slot; 7. Helical spring; 8. Connecting plate; 9. Protruding post; 10. Handle bolt; 11. Anti-rotation mechanism; 12. Insulating rod; 13. Power line; 14. Porcelain insulator; 15. Crossarm; 16. Utility pole. Detailed Implementation

[0020] See Figures 1-8This utility model discloses an embodiment of a double-ceramic insulated rigid sheath with elastic end sleeves capable of live installation. It includes two insulator sleeves 1 for covering the top of the insulators. On one side of each insulator sleeve 1 is an outer wire sleeve 2 for wrapping an electrical wire. On the other side of each insulator sleeve 1 are retractable wire sleeves that are symmetrically arranged and interlocked with each other, corresponding to the outer wire sleeve 2. The lower end of each insulator sleeve 1 has an opening corresponding to the upper part of the insulator. The lower edges of the outer wire sleeve 2 and the retractable wire sleeve have slits that penetrate the opening at the lower end of the insulator sleeve 1. On both sides of these slits are downwardly extending mating edges 3. The retractable wire sleeve consists of an outer wire sleeve 22 and an inner wire sleeve 23. The shapes of the outer wire sleeve 22 and the inner wire sleeve 23 correspond to those of the outer wire sleeve 2, and they also have mating edges corresponding to the mating edges 3. The end of the outer wire sleeve 22 is coaxially fitted around the outside of the end of the inner wire sleeve 23, allowing for axial extension and retraction. A mounting plate 4 is provided at the top (middle or center of gravity) of each outer wire sleeve 2, and mounting holes 41 are provided on the mounting plate 4; the cross-section of the mating edge 3 on both sides is V-shaped. On the inner side of the mating edge 3 of each outer wire sleeve 2, a clamping plate 5 that matches the shape of the mating edge 3 is connected by an elastic body. The insulating sheath is made of rigid insulating material.

[0021] On each of the two mating edges of the inner sleeve 23 of the wire, there is a middle clamping plate 5' corresponding to the clamping plate 5, which is connected by an elastic body.

[0022] Each of the aforementioned wire sleeves 2 has an elastic end sleeve 6 attached to its outer end. The elastic end sleeve 6 may be made of rubber and its shape is designed to fit the shape of the outer end of the wire sleeve 2. One end of the elastic end sleeve 6 has a slot 61 for insertion into the outer end of the wire sleeve 2. The outer end of the wire sleeve 2 and the elastic end sleeve 6 can be bonded together with an adhesive (conventional material).

[0023] The connection structure between the clamping plate 5 and the mating edge 3 is existing technology (see [link]). Figures 5-8 A row of through holes 31 is provided on the mating edge 3. A plurality of plugs 51 corresponding to the through holes 31 are provided on the outer side of the clamping plate 5. A conical petal flange (three or four petals, see below) is provided at the top of the plug 51. Figure 6 The maximum outer diameter of the flange is slightly larger than the diameter of the through hole 31; the elastic body is a helical spring 7, which is fitted at the base of the plug 51; after radial compression, the flange at the top of the plug 51 passes through the through hole 31 and then returns to its original position (locked on the outside of the through hole 31, see reference). Figure 8 The helical spring 7 is supported between the clamping plate 5 and the mating edge 3. The connection structure between the middle clamping plate 5' and the mating edge of the inner sleeve 23 is the same as the connection structure between the clamping plate 5 and the mating edge 3 described above. The helical spring 7 is supported between the middle clamping plate 5' and the mating edge of the inner sleeve 23 (see...). Figure 8 ).

[0024] The mounting plate 4 of this utility model has at least two circular holes or one or two non-circular holes (such as elongated holes or square holes). The purpose of providing two circular holes or non-circular holes is to provide stable support during installation and prevent the sheath from swinging.

[0025] Reinforcing ribs 24 can also be provided between the top of the two porcelain bottle sleeves 1 and the top of the root of the adjacent outer wire sleeve 2.

[0026] This invention may also provide an outer flange 21 at the outer end of the outer wire sleeve 2, which can increase the strength of the outer end of the outer wire sleeve 2. In this case, the elastic end sleeve 6 is fitted onto the outer flange 21.

[0027] A rainproof rim (not shown) can also be provided at the lower end of the porcelain bottle sleeve 1 to improve the waterproof effect.

[0028] In this invention, one porcelain insulator sleeve 1 and its two outer wire sleeves 2 and wire outer sheaths 22 are integrally formed (constituting half of the entire insulating sheath), and the other porcelain insulator sleeve 1 and its two outer wire sleeves 2 and wire inner sheaths 23 are integrally formed (the other half), both of which are injection molded from rigid plastic (such as polycarbonate 2805).

[0029] See Figure 9 This utility model also includes a mounting rod used in conjunction with the mounting plate 4 and the auxiliary mounting plate 6. It includes: a connecting plate 8 bent (deflected) to one side connected to the top of the insulating rod 12; a protrusion 9 corresponding to the mounting hole 41 of the mounting plate 4 is provided on one side of the connecting plate 8; one end of the connecting plate 8 is connected to the top of the insulating rod 12 via a handle bolt 10; an anti-rotation mechanism 11 (such as a mating concave-convex structure, or a spline-like structure) is provided between the connecting plate 8 and the insulating rod 12. The angle between the connecting plate 8 and the insulating rod 12 is adjusted by the handle bolt 10 for ease of use.

[0030] See Figure 10 and Figure 11 During installation, firstly, an elastic end sleeve 6 is fitted onto the outer end of each outer wire sleeve 2, and the two can be fixed together by applying adhesive; then, the protruding post 9 is inserted into the mounting hole 41 of the mounting plate 4 with an insulating sheath containing the inner wire sleeve 23, and then the insulating sheath is lifted to... Figure 11Above the porcelain insulator 14 on the right, pull down the insulating rod 12 to place the insulating sleeve over the upper part of the porcelain insulator 14 and the wires 13 on both sides; then remove the protruding post 9 from the mounting hole 41 of the top mounting plate 4 to complete the installation of the right half of the insulating sleeve. Then, use the same method to install the left half of the insulating sleeve on the porcelain insulator 14 on the left, and put the outer wire sleeve 22 of this half of the insulating sleeve over the inner wire sleeve 23 of the already installed insulating sleeve. This completes the installation of a complete set of insulating sleeves. The utility pole after installing the insulating sleeves is as follows: Figure 11 As shown.

Claims

1. A rigid insulating sleeve with elastic end sleeves for energized installation, comprising two porcelain sleeves (1) for wrapping the top of the porcelain insulators, an outer wire sleeve (2) for wrapping wires is provided on one side of each porcelain sleeve (1), and a telescopic wire sleeve is provided on the other side of each porcelain sleeve (1) and is symmetrically arranged with the outer wire sleeve (2) to be connected to each other; an opening corresponding to the upper part of the porcelain insulator is provided at the lower end of the porcelain sleeve (1), and a slit communicating with the opening at the lower end of the porcelain sleeve (1) is provided at the lower edge of the outer wire sleeve (2) and the telescopic wire sleeve, and a downwardly extending butt joint edge (3) is provided on both sides of the slit; the telescopic wire sleeve is composed of a wire outer sleeve (22) and a wire inner sleeve (23), the end of the wire outer sleeve (22) being the same as the end of the inner sleeve (23). The bushing is located on the outer side of the end of the inner sleeve (23) of the wire, and can slide axially to each other; the lower side of the outer sleeve (22) and the inner sleeve (23) of the wire is provided with a mating edge identical to the mating edge (3), and the cross-sections of the mating edges (3) on both sides of the outer sleeve (2) and the mating edges on both sides of the outer sleeve (22) and the inner sleeve (23) of the wire are all V-shaped; on the inner side of the mating edge (3) of the outer sleeve (2), a clamping plate (5) matching the shape of the mating edge (3) is connected by an elastic body; on the opposite side of the two mating edges of the inner sleeve (23), a middle clamping plate (5') corresponding to the clamping plate (5) is connected by an elastic body; the insulating sheath is made of a rigid insulating material, characterized in that, Each of the outer wire sleeves (2) is provided with an elastic end sleeve (6) covering the outer end of the outer wire sleeve (2); each of the outer wire sleeves (2) is provided with a mounting plate (4) at the top end, and the mounting plate (4) is provided with a mounting hole (41).

2. The double-ceramic insulated rigid sleeve with elastic end sleeve capable of being installed under energized conditions according to claim 1, characterized in that, The elastic end sleeve (6) is made of rubber and its shape is designed to match the shape of the outer end of the outer wire sleeve (2). One end of the elastic end sleeve (6) is provided with a slot (61) that can be inserted into the outer end of the outer wire sleeve (2).

3. The double-porcelain insulated rigid sleeve with elastic end sleeve capable of live installation according to claim 1, characterized in that, The connection structure between the clamp (5) and the mating edge (3) is as follows: a row of multiple through holes (31) is provided on the mating edge (3), and multiple plugs (51) corresponding to the through holes (31) are provided on the outside of the clamp (5). A conical petal flange is provided at the top of the plug (51), and the maximum outer diameter of the flange is slightly larger than the diameter of the through hole (31). The elastic body is a helical spring (7), which is sleeved at the root of the plug (51). After the flange at the top of the plug (51) is radially compressed, it passes through the through hole (31) and then returns to its original position. The helical spring (7) is supported between the clamp (5) and the mating edge (3). The connection structure between the middle clamp (5') and the mating edge of the wire inner sleeve (23) is the same as the connection structure between the clamp (5) and the mating edge (3).

4. The double-porcelain insulated rigid sleeve with elastic end sleeve capable of live installation according to claim 1, characterized in that, The mounting holes (41) are two round holes or one or two non-circular holes.

5. The double-porcelain insulated rigid sleeve with elastic end sleeve capable of live installation according to claim 1, characterized in that, A reinforcing rib (24) is provided between the top of the two porcelain insulator sleeves (1) and the root of the adjacent outer wire sleeve (2).

6. The double-ceramic insulated rigid sleeve with elastic end sleeve capable of being installed energized according to claim 1, characterized in that, An outer flange (21) is provided at the outer end of the outer wire sleeve (2); the elastic end sleeve (6) is fitted onto the outer flange (21).

7. The double-ceramic insulated rigid sleeve with elastic end sleeve capable of live installation according to claim 1, characterized in that, A rainproof rim is provided at the lower end of the porcelain bottle sleeve (1).

8. The double-porcelain insulated rigid sleeve with elastic end sleeve capable of live installation according to claim 1, characterized in that, It also includes a mounting rod used in conjunction with the mounting plate (4), the mounting rod comprising: a connecting plate (8) bent to one side connected to the top end of the insulating rod (12), and a protrusion (9) corresponding to the mounting hole (41) on one side of the connecting plate (8); one end of the connecting plate (8) is connected to the top end of the insulating rod (12) by a handle bolt (10), and an anti-rotation mechanism (11) is provided between the connecting plate (8) and the insulating rod (12).

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