CN218733093U - Composite insulating cross arm - Google Patents
Composite insulating cross arm Download PDFInfo
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- CN218733093U CN218733093U CN202222841763.1U CN202222841763U CN218733093U CN 218733093 U CN218733093 U CN 218733093U CN 202222841763 U CN202222841763 U CN 202222841763U CN 218733093 U CN218733093 U CN 218733093U
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Abstract
The utility model discloses a composite insulating cross arm, which comprises a connecting component, an insulating core rod and a wire clamping component, wherein the connecting component comprises a middle hardware fitting which is suitable for being fixedly connected with a telegraph pole; one end of the insulating core rod is connected with the middle hardware fitting; the wire clamping assembly comprises an end fitting and a first wire clamping piece, the other end of the insulating core rod is connected with the end fitting, a first wire groove is formed in the end fitting and suitable for the periphery of a part of a wire to be attached, the first wire clamping piece is connected with the end fitting, and the first wire clamping piece is suitable for hooking the wire. Arrange the wire in first wire casing in, hang the wire with first card line spare hook again, can make the wire fix at this first wire casing, need not the manual work and fix the wire through the ligature rope, so this insulating cross arm installation wire is convenient, and has saved the time of winding ligature rope on hanging the line gold utensil, has improved the installation effectiveness.
Description
Technical Field
The utility model relates to a power equipment's technical field, concretely relates to compound insulation cross arm.
Background
In the field of electrical equipment, a cross arm for a power transmission line is an important matched structural member of a power transmission pole, the cross arm is an angle iron transversely fixed at the top of the power transmission pole, and a porcelain insulator is arranged on the cross arm and used for supporting an overhead wire and enabling the wire to be fixed at a certain safety distance; at present, metal cross arms such as iron cross arms and steel cross arms are widely used in power transmission lines with the voltage class of 35KV and below, the metal cross arms are heavy in mass and poor in insulativity and are easy to cause flashover problem, and flashover refers to the phenomenon that when gas or liquid dielectric medium around a solid insulator is broken down, the gas or liquid dielectric medium discharges along the surface of the solid insulator.
The conventional composite insulating cross arm comprises a wire hanging hardware fitting, an insulating core rod, a jacket and a connecting hardware fitting, wherein a second end of the wire hanging hardware fitting is provided with a fixing groove for fixing a lead, and a bulge is arranged on the outer wall of an opening of the fixing groove and used for preventing a binding rope for binding the lead from falling off; outside the overcoat cover established and insulating plug, the one end of overcoat was pegged graft in the first end of hanging wire gold utensil, and the other end of overcoat is pegged graft in link fitting, and link fitting passes through the U-shaped staple bolt to be fixed on the wire pole, and the wire card is fixed in the fixed slot, and the manual work is fixed through the outer wall of ligature rope winding fixed slot opening part many times. The hardware fitting is an iron or aluminum metal accessory widely used for power transmission lines, and the cross arm adopts partial metal and partial insulating materials, so that the insulativity of the composite cross arm is enhanced, and the insulativity conforming to the insulating cross arm is improved.
However, the composite insulating cross arm requires a worker to fix the wires by binding ropes, which results in complex installation of the wires and low efficiency.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that because need the manual work to fix the wire through the ligature rope among the prior art, lead to foretell compound cross arm installation wire comparatively loaded down with trivial details, and inefficiency.
Therefore, the utility model provides a compound insulating cross arm, include:
the connecting assembly comprises a middle fitting, and the middle fitting is suitable for being fixedly connected with the telegraph pole;
one end of the insulating core rod is connected with the middle hardware fitting;
the wire clamping assembly comprises an end fitting and a first wire clamping piece, the other end of the insulating core rod is connected with the end fitting, a first wire groove is formed in the end fitting and suitable for the periphery of a part of a wire to be attached, the first wire clamping piece is connected with the end fitting, and the first wire clamping piece hooks the wire.
Optionally, in the composite insulating cross arm, a pin hole is formed in the end fitting, the wire clamping assembly further includes a pin shaft rotatably connected in the pin hole, a first through hole extending in a radial direction of the pin shaft is formed in one end of the pin shaft, the first wire clamping member has a first threaded rod matched with the first through hole in size, and the first threaded rod penetrates through the first through hole and is fixedly connected with the pin shaft through a fastening nut.
Optionally, in the composite insulating cross arm, a second through hole extending in a radial direction of the pin shaft is formed in the other end of the pin shaft, the wire clamping assembly further includes a second wire clamping member, the second wire clamping member has a second threaded rod matched with the second through hole in size, the second threaded rod penetrates through the second through hole and is fixedly connected with the pin shaft through a fastening nut, and the second wire clamping member is suitable for hooking the wire.
Optionally, in the composite insulating cross arm, the first wire clamping piece and the second wire clamping piece are arranged in a staggered manner, and a first hooking force generated by the first wire clamping piece is opposite to a second hooking force generated by the second wire clamping piece in direction.
Optionally, foretell compound insulating cross arm still includes insulating sheath, insulating sheath cover is established insulating plug periphery, first installation cavity has on the end gold utensil, insulating plug one end with first installation cavity is pegged graft, the insulating plug other end with middle gold utensil is pegged graft, insulating sheath pot head establishes the part first installation cavity periphery, insulating sheath's another pot head establishes the part middle gold utensil periphery.
Optionally, in the composite insulating cross arm, a plurality of sheds are uniformly distributed on the insulating sheath.
Optionally, in the composite insulating cross arm, the cross sections of the insulating core rod, the insulating sheath and the intermediate fitting are in an opposite-i shape.
Optionally, in the composite insulating cross arm, the end fitting includes:
the second wire groove is formed in one side, facing the insulating core rod, of the end fitting;
the third wire groove is arranged on one side, away from the insulating core rod, of the end fitting;
the first wire groove is arranged between the second wire groove and the third wire groove and is positioned at the top of the end fitting.
Optionally, the end fitting of the composite insulating cross arm is provided with a lifting hole.
Optionally, in the composite insulating cross arm, two groups of the insulating core rods and two groups of the wire clamping assemblies are arranged, and the insulating core rods and the wire clamping assemblies are symmetrically arranged with respect to the middle hardware fitting.
Optionally, in the above composite insulating cross arm, the connecting assembly further includes:
the cross arm hoop is provided with an arc-shaped contact part, the arc-shaped contact part is suitable for abutting against the periphery of the electric wire rod part, and the cross arm hoop is fixedly connected with the middle hardware fitting through a first connecting piece;
and the U-shaped hoop wraps part of the periphery of the telegraph pole, and two ends of the U-shaped hoop are fixedly connected with the cross arm hoop through two second connecting pieces respectively.
The technical scheme provided by the utility model, following advantage has:
1. the utility model provides a composite insulating cross arm, which comprises a connecting component, an insulating core rod and a wire clamping component, wherein the connecting component comprises an intermediate fitting which is suitable for being fixedly connected with a telegraph pole; one end of the insulating core rod is connected with the intermediate fitting; the wire clamping assembly comprises an end fitting and a first wire clamping piece, the other end of the insulating core rod is connected with the end fitting, a first wire groove is formed in the end fitting and suitable for the periphery of a part of a wire to be attached, the first wire clamping piece is connected with the end fitting, and the first wire clamping piece is suitable for hooking the wire.
The compound insulation cross arm of this structure arranges the wire in first wire casing, catches the wire with first card line spare hook again, can make the wire fix at this first wire casing, need not the manual work and fixes the wire through the ligature rope, and consequently this insulation cross arm's installation wire is convenient, and has saved the time of winding the ligature rope on hanging the line gold utensil, has improved the installation effectiveness.
2. The utility model provides a compound insulation cross arm, insulating plug overcoat are equipped with insulating sheath, a plurality of full skirt of evenly distributed on the insulating sheath, and the full skirt can increase the creepage distance of compound cross arm.
3. The utility model provides a compound insulation cross arm, the cross-section of insulating plug, insulating sheath and middle gold utensil is opposite sex I shape. The composite insulating cross arm with the different-shaped I-shaped cross section structure has stronger bending resistance, and compared with other shapes, the composite insulating cross arm with the different-shaped I-shaped cross section structure is light in weight.
4. The utility model provides a compound insulation cross arm, because the end has first wire casing, second wire casing and third wire casing, and this end gold utensil of first calorie of wire spare rotatable coupling, first calorie of wire spare is used for the hook wire, the wire also can set up on second wire casing or third wire casing promptly, the second wire casing sets up in one side of end gold utensil orientation insulating plug, the third wire casing sets up the one side that deviates from insulating plug at the end gold utensil, first wire casing, the wire is all placed to second wire casing and third wire casing, three kinds of wire casings are applied to various wires and lay the occasion, choose one of them wire casing for use according to the mode of laying of wire difference.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the composite insulating cross arm provided by the present invention;
fig. 2 is another schematic diagram of the layout of the conductive wires of the composite insulating cross arm provided by the present invention;
FIG. 3 is a schematic view of the connecting assembly provided in FIG. 1 securing a conductor;
fig. 4 is a schematic view of an end fitting provided in the present invention;
fig. 5 is a schematic view of a pin shaft provided in the present invention;
fig. 6 is a schematic view of a first wire clamping member provided in the present invention;
fig. 7 is a schematic view of an insulating core rod and an insulating sheath provided in the present invention;
fig. 8 is a schematic view of an intermediate fitting provided in the present invention;
fig. 9 is a schematic view of a cross arm hoop provided in the present invention;
fig. 10 is a schematic view of the U-shaped hoop provided in the present invention.
Description of reference numerals:
11. an intermediate hardware fitting; 111. a strip-shaped hole; 12. a cross arm hoop; 121. an arc-shaped contact portion; 122. reinforcing ribs; 13. a U-shaped hoop;
2. an insulating core rod; 21. an insulating sheath; 211. an umbrella skirt;
31. an end fitting; 311. a first wire slot; 312. a second wire slot; 313. a third wire slot; 314. hoisting holes; 315. a first mounting cavity; 316. a pin shaft hole; 32. a first wire clamping piece; 321. a first threaded rod; 33. a pin shaft; 331. a first through hole; 332. a second through hole; 34. a second wire clamping piece;
4. a wire;
5. a utility pole.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a composite insulating cross arm, as shown in fig. 1 to 10, including a connection assembly, an insulating core rod 2 and a wire clamping assembly, where the connection assembly includes an intermediate fitting 11 adapted to be fixedly connected to a telegraph pole 5, one end of the insulating core rod 2 is connected to the intermediate fitting 11, the wire clamping assembly includes an end fitting 31 and a first wire clamping member 32, the other end of the insulating core rod 2 is connected to the end fitting 31, the end fitting 31 has a first wire groove 311, the first wire groove 311 is adapted to fit to the periphery of a part of a conducting wire 4, the first wire clamping member 32 is connected to the end fitting 31, and the first wire clamping member 32 hooks the conducting wire 4.
The compound insulating cross arm that this embodiment provided arranges wire 4 in first wire casing 311, withstands wire 4 with first card line spare 32 hook again, can make wire 4 fix in this first wire casing 311, need not the manual work and fix wire 4 through the ligature rope, and consequently this insulating cross arm installation wire 4 is convenient, and has saved the time of winding the ligature rope on the gold utensil of being qualified for the next round of competitions, has improved the installation effectiveness.
As shown in fig. 3 to 6, in the composite insulating cross arm provided in this embodiment, the end fitting 31 is provided with a pin hole 316, the pin hole 316 is a circular through hole, the wire clamping assembly further includes a pin shaft 33, the pin shaft 33 is a cylindrical rod, the pin shaft 33 passes through the pin hole 316, two ends of the pin shaft 33 all extend out of the pin hole 316, one end of the pin shaft 33 is provided with a first through hole 331 extending along a radial direction thereof, the other end of the pin shaft 33 is provided with a second through hole 332 extending along the radial direction thereof, the first through hole 331 and the second through hole 332 are respectively located at two ends of the pin shaft 33, and diameters of the first through hole 331 and the second through hole 332 are the same. The first wire clamping piece 32 is provided with a first threaded rod 321 matched with the first through hole 331 in size, the upper portion of the first wire clamping piece 32 is in a C shape, the lower portion of the first wire clamping piece 32 is provided with the first threaded rod 321, the first threaded rod 321 penetrates through the first through hole 331 and is fixedly connected with the pin shaft 33 through a fastening nut, a gasket is further arranged between the fastening nut and the pin shaft 33, the second wire clamping piece 34 is in the same structure as the first wire clamping piece 32, the second wire clamping piece 34 is provided with a second threaded rod matched with the second through hole 332 in size, the second threaded rod penetrates through the second through hole 332 and is fixedly connected with the pin shaft 33 through the fastening nut, the gasket is also arranged between the fastening nut and the pin shaft 33, and the second wire clamping piece 34 hooks the lead 4. The first wire clamping piece 32 and the second wire clamping piece 34 are arranged in a staggered mode, and the first hooking force generated by the first wire clamping piece 32 and the second hooking force generated by the second wire clamping piece 34 are opposite in direction, namely the first wire clamping piece 32 and the second wire clamping piece 34 limit the positions of each other.
In practical application, the composite insulating cross arm that this embodiment provided, first card line piece 32 is the buckle, and first card line piece 32 has the arc mounting groove for hook wire 4 has joint portion on the end gold utensil 31, first card line piece 32 and end gold utensil 31 joint.
As shown in fig. 7, the composite insulating cross arm provided by this embodiment further includes an insulating sheath 21 and a plurality of sheds 211, the cross-sections of the insulating core rod 2, the insulating sheath 21 and the middle hardware fitting 11 are in the shape of an opposite-type i, the insulating core rod 2 is formed by squeezing and drawing glass fibers, the insulating sheath 21 is made of rubber, the insulating sheath 21 is sleeved on the periphery of the insulating core rod 2, the insulating sheath 21 can be fixed on the insulating core rod 2 by injection, squeezing and covering the umbrella or molding, the plurality of sheds 211 are uniformly arranged along the length direction of the insulating sheath 21 at intervals, the sheds 211 can increase the creepage distance of the composite insulating cross arm, and the creepage distance is: in different use cases, the creepage distance is the shortest path between two conductive parts or between a conductive part and an equipment protection interface, measured along the insulating surface, due to the fact that the insulating material around the conductor is electrically polarized, causing the insulating material to exhibit a charging phenomenon. The end fitting 31 is provided with a first mounting cavity 315, one end of the insulating core rod 2 is spliced and glued with the first mounting cavity 315, the insulating sheath 21 and a part of the insulating sheath at the same end of the insulating core rod 2 are sleeved outside the first mounting cavity 315, an anti-falling structure is arranged between the first mounting cavity 315 and the insulating sheath 21, the first mounting cavity 315 is externally provided with a bulge, the insulating sheath 21 is internally provided with a groove, and when a part of the insulating sheath 21 wraps part of the outer periphery of the first mounting cavity 315, the bulge is clamped with the groove to prevent the end fitting 31 from being separated from the insulating core rod 2; one side that is close to end gold utensil 31 at middle gold utensil 11 is equipped with the second installation cavity, and first installation cavity 315 is just right with the second installation cavity promptly, and the other end of insulating plug 2 is pegged graft and is glued with this second installation cavity, and the periphery of partial second installation cavity is established to the other end cover of insulating sheath 21, is provided with anti-drop structure equally, and the cross-section of first cavity and second cavity is the opposite sex's I shape. The end fitting 31, the pin 33, the middle fitting 11, the first wire clamping member 32, the second wire clamping member 34, and various bolts are all formed by low-pressure casting of aluminum alloy and are strengthened by T6 heat treatment. The cross sections of the insulating core rod 2, the insulating sheath 21 and the middle hardware fitting 11 are in the shape of the opposite-sex h-shaped cross section, the composite insulating cross arm with the structure of the opposite-sex h-shaped cross section has strong bending resistance, and the composite insulating cross arm with the structure of the opposite-sex h-shaped cross section is light in weight compared with other shapes.
As shown in fig. 1, fig. 2 and fig. 4, in the composite insulating cross arm provided in this embodiment, the end fitting 31 is provided with a second wire groove 312, a third wire groove 313 and a hanging hole 314, the second wire groove 312 is disposed on one side of the end fitting 31 facing the insulating core rod 2, the third wire groove 313 is disposed on one side of the end fitting 31 facing away from the insulating core rod 2, the first wire groove 311 is disposed between the second wire groove 312 and the third wire groove 313 and located at the top of the end fitting 31, that is, the first wire groove 311 is located at the top of the end fitting 31, the second wire groove 312 is located at the left side of the end fitting 31, the second wire groove 312 is located at the right side of the end fitting 31, and the second wire groove 312 and the third wire groove 313 are disposed opposite to each other, and openings of the second wire groove 312 and the third wire groove 313 face away from each other. The first wire groove 311, the second wire groove 312 and the third wire groove 313 can be used for containing wires 4, the three wire grooves can be applied to various wire 4 arrangement occasions, one wire groove is selected according to different arrangement modes of the wires 4, the first wire groove 311, the second wire groove 312 and the third wire groove 313 are all arc-shaped grooves and are used for containing the wires 4 with different diameters, namely the wires with different wire diameters can be used, and the universality is high; a lifting hole 314 is arranged below the pin hole 316 of the end fitting 31 and used for lifting the end fitting 31.
As shown in fig. 8 to 10, the connecting assembly of the composite insulating cross arm provided by this embodiment further includes a cross arm hoop 12 and a U-shaped hoop 13, the cross section of the upper portion of the middle hardware fitting 11 is an i-shaped hollow member, the lower portion of the middle hardware fitting is a hollow rectangle, and the bottom of the rectangle is symmetrically provided with two strip-shaped holes 111, the cross arm hoop 12 is formed by welding a top plate, a back plate, a reinforcing rib 122 and arc-shaped contact portions 121, the top plate is perpendicular to the back plate, the upper side of the reinforcing rib 122 is welded to the top plate, the rear side of the reinforcing rib 122 is welded to the back plate, the two arc-shaped contact portions 121 are welded to the rear wall of the back plate at intervals, the top plate is provided with two strip-shaped holes, two liang of correspondences in bar hole 111 on this rectangular shape hole and the gold utensil, the bolt passes this rectangular shape hole and this bar hole 111 in proper order, and stretch out outside the bar hole, the end and the fastening nut threaded connection that stretch out of this bolt, can fix middle gold utensil 11 on cross arm staple bolt 12, U-shaped staple bolt 13 wraps up partial wire pole 5 periphery, and the both ends of U-shaped staple bolt 13 are the threaded rod that has certain length, two through-holes have been seted up on the backplate, even through-hole is passed respectively at this U-shaped staple bolt 13's both ends, and through nut and backplate fixed connection, can be fixed in on wire pole 5 with cross arm staple bolt 12, be about to this compound insulating cross arm to fix on wire pole 5
As shown in fig. 1 and fig. 2, in the composite insulating cross arm provided by this embodiment, two groups of insulating core rods 2, insulating sheaths 21 and wire clamping assemblies are provided, and the two groups are symmetrically arranged with respect to the middle hardware fitting 11.
The working process of the composite insulating cross arm provided by the embodiment is as follows:
firstly, wrapping a part of the periphery of a telegraph pole 5 with a specified height by a U-shaped hoop 13, abutting an arc-shaped contact part 121 on a cross arm hoop 12 against the other part of the periphery of the telegraph pole 5, simultaneously penetrating two ends of the U-shaped hoop through two through holes on the cross arm hoop 12, fixing two ends of the U-shaped hoop 13 on the cross arm hoop 12 by nuts, namely, fixing the U-shaped hoop 13 and the cross arm hoop 12 on the telegraph pole 5, integrally forming an insulating core rod 2 and an insulating sheath 21, then inserting one end of the insulating core rod 2 into a second mounting cavity of the cross arm hoop 12, gluing an inner wall of the insulating core rod 2 and the second mounting cavity, simultaneously sleeving the insulating sheath 21 on part of the periphery of the second mounting cavity, inserting the other end of the insulating core rod 2 into a first mounting cavity 315, gluing the inner wall of the insulating core rod 2 and the first mounting cavity 315, sleeving one end of the insulating sheath 21 far away from an intermediate fitting 11 on part of the periphery of the first mounting cavity 315, placing a conducting wire 4 into a first wire slot 311, then penetrating a pin shaft 33 of the end fitting 31, penetrating a first wire fastener 32, and simultaneously allowing a second wire fastener to pass through a second pin fastener 32, allowing a second fastener to pass through a second fastener 32, and a second fastener to pass through a second fastener 32, allowing a second fastener to pass through a second fastener 33, and a second fastener to pass through a second fastener 32, and a second fastener 33 to pass through a second fastener. Another set of connection assemblies, insulating core rod 2 and insulating sheath 21 are mounted in the same manner.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (11)
1. A composite insulating cross arm, comprising:
the connecting assembly comprises a middle fitting (11), and the middle fitting (11) is suitable for being fixedly connected with the telegraph pole (5);
one end of the insulating core rod (2) is connected with the intermediate hardware (11);
the wire clamping assembly comprises an end fitting (31) and a first wire clamping piece (32), the other end of the insulating core rod (2) is connected with the end fitting (31), a first wire groove (311) is formed in the end fitting (31), the first wire groove (311) is suitable for the periphery of a part of a wire (4) to be attached, the first wire clamping piece (32) is connected with the end fitting (31), and the first wire clamping piece (32) is hooked on the wire (4).
2. The insulating cross arm according to claim 1, wherein a pin shaft hole (316) is formed in the end fitting (31), the wire clamping assembly further comprises a pin shaft (33) rotatably connected in the pin shaft hole (316), a first through hole (331) extending in a radial direction of the pin shaft (33) is formed at one end of the pin shaft (33), the first wire clamping member (32) is provided with a first threaded rod (321) matched with the first through hole (331) in size, and the first threaded rod (321) penetrates through the first through hole (331) and is fixedly connected with the pin shaft (33) through a fastening nut.
3. The insulating cross arm according to claim 2, wherein the other end of the pin (33) is provided with a second through hole (332) extending in a radial direction thereof, the wire clamping assembly further comprises a second wire clamping member (34), the second wire clamping member (34) has a second threaded rod adapted to the size of the second through hole (332), the second threaded rod passes through the second through hole (332) and is fixedly connected with the pin (33) through a fastening nut, and the second wire clamping member (34) is adapted to hook the wire (4).
4. An insulating cross arm according to claim 3, characterized in that the first wire clamping member (32) and the second wire clamping member (34) are arranged in a staggered manner, and the first hooking force generated by the first wire clamping member (32) and the second hooking force generated by the second wire clamping member (34) are in opposite directions.
5. The insulating cross arm according to any one of claims 1 to 4, characterized by further comprising an insulating sheath (21), wherein the insulating sheath (21) is sleeved on the periphery of the insulating core rod (2), the end fitting (31) is provided with a first mounting cavity (315), one end of the insulating core rod (2) is inserted into the first mounting cavity (315), the other end of the insulating core rod (2) is inserted into the middle fitting (11), one end of the insulating sheath (21) is sleeved on a part of the periphery of the first mounting cavity (315), and the other end of the insulating sheath (21) is sleeved on a part of the periphery of the middle fitting (11).
6. An insulating cross arm according to claim 5, characterized in that a plurality of sheds (211) are evenly distributed on the insulating sheath (21).
7. The insulating cross arm according to claim 6, characterized in that the cross sections of the insulating core rod (2), the insulating sheath (21) and the middle hardware fitting (11) are all in the shape of an opposite I.
8. An insulating cross arm according to any of claims 1-4, characterized in that the end fitting (31) has:
the second wire slot (312) is arranged on one side, facing the insulating core rod (2), of the end fitting (31);
the third wire groove (313) is arranged on one side, away from the insulating core rod (2), of the end fitting (31);
the first wire groove (311) is arranged between the second wire groove (312) and the third wire groove (313) and is positioned at the top of the end fitting (31).
9. The insulating cross arm according to any one of claims 1 to 4, wherein the end fitting (31) is provided with a hanging hole (314).
10. An insulating crossarm according to any of claims 1-4, characterized in that the insulating mandrels (2) and the wire clamping assemblies are provided in two groups and are arranged symmetrically with respect to the intermediate fittings (11).
11. An insulating cross arm according to any of claims 1-4, wherein the connection assembly further comprises:
the cross arm hoop (12), the cross arm hoop (12) is provided with an arc-shaped contact part (121), the arc-shaped contact part (121) is suitable for being abutted against part of the periphery of the telegraph pole (5), and the cross arm hoop (12) is fixedly connected with the middle fitting (11) through a first connecting piece;
the U-shaped anchor ear (13) wraps part of the periphery of the telegraph pole (5), and two ends of the U-shaped anchor ear (13) are fixedly connected with the cross arm anchor ear (12) through two second connecting pieces respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222841763.1U CN218733093U (en) | 2022-10-26 | 2022-10-26 | Composite insulating cross arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222841763.1U CN218733093U (en) | 2022-10-26 | 2022-10-26 | Composite insulating cross arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218733093U true CN218733093U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222841763.1U Active CN218733093U (en) | 2022-10-26 | 2022-10-26 | Composite insulating cross arm |
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| CN (1) | CN218733093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118137411A (en) * | 2024-05-10 | 2024-06-04 | 武汉凯源电力科技有限公司 | 10KV line column type composite insulating cross arm |
-
2022
- 2022-10-26 CN CN202222841763.1U patent/CN218733093U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118137411A (en) * | 2024-05-10 | 2024-06-04 | 武汉凯源电力科技有限公司 | 10KV line column type composite insulating cross arm |
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