CN212535278U - Composite cross arm hardware fitting, cross arm assembly and power transmission tower - Google Patents
Composite cross arm hardware fitting, cross arm assembly and power transmission tower Download PDFInfo
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- CN212535278U CN212535278U CN202021001116.4U CN202021001116U CN212535278U CN 212535278 U CN212535278 U CN 212535278U CN 202021001116 U CN202021001116 U CN 202021001116U CN 212535278 U CN212535278 U CN 212535278U
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- cross arm
- connecting piece
- composite cross
- fitting
- composite
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims description 44
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010931 gold Substances 0.000 claims abstract description 12
- 229910052737 gold Inorganic materials 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 claims abstract description 4
- 239000012212 insulator Substances 0.000 claims description 29
- 238000003466 welding Methods 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a compound cross arm gold utensil, cross arm subassembly and power transmission tower, gold utensil include first connecting piece, second connecting piece and a plurality of fastener, first connecting piece and second connecting piece fixed connection, and the second connecting piece is the U type, and fastener fixed connection is on the second connecting piece, and the fastener is suspension clamp or strain clamp. Through the mode, the problems that abnormal discharge is easily caused due to non-uniform electric field of the wire hanging node in the prior art, the wire connection of the power transmission line in a small corner is complex and the risk of wind deflection jumper wires exists, and particularly, the wire in a tension line is disconnected and the arrangement of a jumper wire connection structure is complex are solved.
Description
Technical Field
The utility model relates to a transmission of electricity technical field, in particular to compound cross arm gold utensil, cross arm subassembly and transmission of electricity tower.
Background
In the prior art, the wire connecting hardware fitting is generally cylindrical, the hardware fitting with the structure is generally heavy, the weight and the volume are large, the manufacturing cost is high, meanwhile, the installation is inconvenient, and the cylindrical hardware fitting structure does not have an electric field shielding function, so that an electric field singular point is easily formed, and abnormal discharge is generated. In addition, due to the shape of the cylinder, the number of connectable wire clamps on the cylindrical connecting hardware fitting is small, generally, only one wire clamp is arranged on each lead for fixing, force bearing cannot be achieved, the cylindrical connecting hardware fitting cannot be used on a corner tower, and the application range is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a compound cross arm gold utensil, cross arm subassembly and power transmission tower to transmission line wire link fitting electric field distribution is uneven among the solution prior art, and need carry out the wire when the low-angle corner and cut off and wire jumper connection structure arranges loaded down with trivial details problem.
For solving the technical problem, the utility model discloses a technical scheme provide a compound cross arm gold utensil, the gold utensil includes first connecting piece, second connecting piece and a plurality of fastener, first connecting piece and second connecting piece fixed connection, and the second connecting piece includes at least one U type structure, and fastener fixed connection is on the second connecting piece, and the fastener is suspension clamp or strain clamp.
Furthermore, the hardware fitting further comprises a third connecting piece, and the third connecting piece is fixedly connected with the first connecting piece and/or the second connecting piece.
Furthermore, the first connecting piece is a flange tube, the number of the first connecting pieces is one, two or more, and the first connecting pieces are connected and fixed at the closed end of the U-shaped structure through a flange plate or in a welding mode.
Furthermore, the second connecting piece is horizontally arranged, and the wire clamp is fixedly connected to two horizontal edges of the second connecting piece.
Further, the open end of the U-shaped structure is connected and closed through a cover.
Further, the second connecting piece includes two at least U type structures and a plurality of fourth connecting piece, and syntropy parallel arrangement passes through fourth connecting piece interconnect between two at least U type structures.
Further, the wire clamp is connected to the fourth connector and/or the U-shaped structure.
In order to solve the above problem, the present application further provides a cross arm assembly, the cross arm assembly includes at least two post insulators and the composite cross arm fitting of any one of the above, and the at least two post insulators are fixedly connected through the composite cross arm fitting of any one of the above.
Furthermore, the cross arm assembly is provided with two diagonal insulators, and the two post insulators and the two diagonal insulators are fixedly connected through a composite cross arm hardware fitting.
In order to solve the above problem, the present application further provides a transmission tower, which includes a tower body and the cross arm assembly described in any one of the above.
Different from the prior art, the composite cross arm hardware fitting, the cross arm assembly and the power transmission tower provided by the utility model have the advantages that by designing a novel composite cross arm connecting hardware fitting and integrally arranging the wire clamp and the composite cross arm connecting piece, the distance between the wire and the composite cross arm can be effectively reduced, and the problem of wind deflection jumper wire can be effectively solved; the design of the U-shaped structure can well improve the electric field distribution around the cross arm connecting hardware fitting; in addition, the proper wire clamp form is selected through the improvement design combination on the hardware fitting structure, the bearing capacity of the hardware fitting is improved, the hardware fitting is suitable for a small-angle corner tower, a jumper structure of the corner tower is omitted, a lead is not required to be disconnected, the construction complexity is reduced, and the line reliability is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic perspective view of an embodiment of a composite cross arm hardware fitting provided in the present invention;
fig. 2 is a schematic perspective view of another embodiment of the composite cross arm hardware fitting provided in the present invention;
fig. 3 is a schematic perspective view of another embodiment of the composite cross arm hardware fitting provided in the present invention;
fig. 4 is a schematic perspective view of a composite cross arm hardware fitting according to another embodiment of the present invention;
fig. 5 is a schematic perspective view of an embodiment of a cross arm assembly according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the utility model provides a compound cross arm gold utensil 1001, compound cross arm gold utensil 1001 includes first connecting piece 1110, second connecting piece 1120 and a plurality of fastener 1101, first connecting piece 1110 and second connecting piece 1120 fixed connection, and second connecting piece 1120 includes at least one U type structure 1102, and fastener 1101 fixed connection is on second connecting piece 1120. Compared with the traditional cylindrical hardware fitting, the U-shaped hardware fitting is less in overall material consumption, lighter in weight and convenient to install.
When the composite cross arm hardware 1001 is used on a common tangent tower or the requirement on the holding force of the cable clamp 1101 is not high, the cable clamp 1101 can be a common suspension cable clamp convenient to connect; when the hardware 1001 is applied to a tension resistant tower or a corner tower or when the requirement on the holding force of the cable clamp 1101 is high, a tension resistant cable clamp or a crimping cable clamp with a high holding force may be selected, which is not particularly limited herein.
First connecting piece 1110 is used for the fixed connection post insulator, connect the wire on the body of the tower through the fixed articulate of post insulator, in order to make the connection between compound cross arm and the transmission tower more stable, compound cross arm gold utensil 1001 still includes third connecting piece 1130 that can be used for articulating oblique pull insulator, third connecting piece 1130 can be connected on first connecting piece 1110 or second connecting piece 1120, also can connect simultaneously on first connecting piece 1110 and second connecting piece 1120, the connected mode between each connecting piece can also be connected through modes such as bolt screw through welded fastening connection, the connected mode here can be adjusted according to actual demand, do not specifically restrict. In a specific embodiment, in order to facilitate connection with the composite cross arm, the first connecting member 1110 may have a flange structure, the first connecting member 1110 is fixedly connected to an end of the composite cross arm through the flange, and the first connecting member 1110 and the second connecting member 1120 may be connected by bolts or flanges. According to different working conditions and different requirements of hardware fittings on bearing force, the number of the first connecting pieces 1110 included in each composite cross arm hardware fitting 1001 can be one, two or more, each first connecting piece 1110 is connected with a post insulator, and the wire can be well supported.
The second connecting member 1120 is transversely disposed, the second connecting member 1120 includes two horizontal portions 1121 and a bending portion 1122 (i.e., a closed end of the U-shaped structure), and two ends of the bending portion 1122 are respectively fixedly connected to the two horizontal portions 1121 to form the integral U-shaped structure 1102. The two horizontal portions 1121 are located in the same vertical plane, and an open end of a U-shaped structure is formed between the two horizontal portions 1121. The cable clamp 1101 is fixedly connected to the horizontal portion 1121 of the U-shaped structure 1102. The number of the clips 1101 may be one, two, or more, and is used to fixedly connect each split conductor, and when the number of the clips 1101 is two or more, the two or more clips 1101 are respectively disposed on the two horizontal portions 1121, so that the stress of the second connecting member 1120 is more uniform. The second connecting member 1120 is U-shaped, and can fully utilize the gap between the two horizontal portions 1121 of the U-shaped structure 1102 to hang the wire clamp in different horizontal planes, thereby realizing the hanging of the multi-split wire; meanwhile, the closed end of the U-shaped hardware fitting is similar to the shape of a half equalizing ring, so that a good electric field closing effect can be realized on one side connected with the cross arm, the generation of electric field singularities is reduced, and the possibility of abnormal discharge is reduced.
The wire clamp 1101 and the second connecting member 1120 can be connected by welding, riveting, bolting, and the like, and the wire clamp and the second connecting member can be stably connected, and the specific connection mode is not limited.
In order to make the overall structure of the composite cross arm hardware fitting 1100 more stable, the opening end of the U-shaped structure 1102 of the second connecting member 1120 is provided with the cover 1123, the cover 1123 is fixedly connected to one end of the two horizontal portions 1121, which is far away from the bending portion 1122, and a good support is formed at the opening end, so that the whole connection is more stable, and meanwhile, the structure of the cover 1123 makes the U-shaped structure 1102 of the second connecting member 1120 become a relatively closed structure, so that a better ground field shielding effect can be achieved.
In other embodiments, referring to fig. 2, the composite cross arm hardware 1002 includes a first connecting member 1110, a second connecting member 1120 and two third connecting members 1130, the third connecting members 1130 are disposed on the second connecting member 1120, and two horizontal portions 1121 of the U-shaped structure 1102 are located in the same horizontal plane. Two third connecting pieces 1130 are respectively arranged at two ends of the bent portion 1122 of the U-shaped structure 1102, and a certain angle is formed between the two third connecting pieces 1130, so that a triangular structure is formed between the cable-stayed insulator hung on the two third connecting pieces 1130 and the iron tower, and the whole supporting structure is more stable. The wire clamps 1101 are respectively arranged on the two horizontal portions 1121, along the advancing direction of the wires, the two corresponding wire clamps 1101 on the two horizontal portions 1121 are used for hanging the same wire, and therefore higher holding force for the wires can be achieved, the composite cross arm hardware fitting 1002 is applied to the small-angle corner tower, jumper connection is not needed, and wiring complexity of the small-angle corner tower is greatly reduced.
Of course, in other structures that are not subject to high stress requirements, the composite cross arm hardware 1002 may also include only the first connecting member 1110 and the second connecting member 1120, or include the first connecting member 1110, the second connecting member 1120 and the third connecting member 1130, which is not particularly limited herein and may be selected according to actual situations.
Referring to fig. 1, 3 and 4, in order to enhance the load-bearing capacity of the composite cross arm hardware, better bear the pulling force of the wire, and more stably connect the wire, in another embodiment of the present invention, the composite cross arm hardware 1100 includes two first connecting members 1110 and one second connecting member 1120, and the second connecting member includes two U-shaped structures 1102 and a plurality of fourth connecting members 1140. The two U-shaped structures 1102 are arranged in parallel in the same direction and connected to each other through a plurality of fourth connecting members 1140, and two ends of the fourth connecting members 1140 are respectively connected to two corresponding horizontal portions 1121 of the two U-shaped structures 1102.
Specifically, the fourth connector 1140 may be an elongated cylindrical or rectangular parallelepiped structure in fig. 3 or a flat plate structure in fig. 4 according to different requirements, and when the fourth connector 1140 is an elongated structure, the overall weight of the composite cross arm hardware 1100 is low, which may reduce the cost; under the condition that the fourth connecting piece 1140 is of a flat plate structure, the composite cross arm hardware fitting 1100 is more stably supported and has higher reliability, and the specific shape and structure of the fourth connecting piece 1140 is not particularly limited and can be selected according to actual working conditions.
In this embodiment, due to the addition of the fourth connecting member 1140, the wire clamp 1101 can be disposed not only on the horizontal portion 1121 of the second connecting member 1120, but also on the fourth connecting member 1140, which is not specifically limited herein, based on the uniform and reasonable distribution of the wire clamp 1101 and the overall stress of the composite cross arm hardware 1100. Two U type structures syntropy parallel arrangement sets up two fastener on every horizontal part 1121 of every U type structure, can realize that two fasteners are fixed to same root wire. Meanwhile, the whole composite cross arm hardware fitting 1100 can also be used for hooking the four-split conductor, can provide better support for a power transmission line with larger current capacity, can improve the reliability of fixing the conductor under the condition that the conductor needs to realize a small-angle corner, can save a jumper wire structure of a corner tower, enables the conductor not to be disconnected, reduces the construction complexity and improves the reliability of the line.
In this embodiment, the open end and the closed end of the bending portion 1122 are not located in the same plane, the closed ends of the bending portions 1122 of the two U-shaped structures are away from each other, the two first connecting members 1110 are connected to the two bending portions 1122 of the second connecting member 1120 respectively, so that the two composite cross arms connected to the hardware 1100 are in a triangular structure, and the support of the whole structure is more stable.
Because the wire clamp 1101 is directly connected to the composite cross arm hardware fitting 1100, the force transmission effect between the wire clamp 1101 and the composite cross arm hardware fitting 1100 is good, the distance between the wire clamp 1101 and the composite cross arm hardware fitting 1100 is small, and the problem of windage yaw jumper is solved, so that the wire can be directly connected to the wire clamp 1101 under the condition that the wire is subjected to small-angle corner turning, the jumper is avoided, the wire is prevented from being disconnected, the overall structure is simplified, and the installation is convenient. At this time, the cable clamp 1101 should be a strain clamp with a large holding force.
As shown in fig. 5, the utility model also provides a cross arm assembly 1000, including two post insulators 1200, two oblique pull insulators 1300 and compound cross arm gold utensil 1100.
Specifically, the post insulator 1200 and the second connecting member are fixedly connected through the first connecting member, the diagonal insulator 1300 and the third connecting member are fixedly connected, and the combination of the two post insulators 1200 and the two diagonal insulators 1300 can stably support the wire.
Of course, in other embodiments, such as the case where the cable clamp only bears the dead weight of the conductor, the cross arm assembly may be a single-post cross arm structure, including only one post insulator; alternatively, the cross arm assembly may also include a cable-stayed insulator, a post insulator; under the condition that other stress requirements are higher, the cross arm assembly can also comprise three diagonal tension insulators and a post insulator. The number of the diagonal insulators and the post insulators included in the cross arm assembly may be freely combined, and is not particularly limited herein.
The utility model also provides a transmission tower (not shown), including body of the tower (not shown) and cross arm subassembly 1000. By different combinations of the tower body and the various embodiments in this application, the transmission tower can be a straight tower or a small angle turning tower, where the change can be made freely.
To sum up, the composite cross arm hardware, the cross arm assembly and the power transmission tower provided by the utility model have the advantages that by designing a novel composite cross arm connecting hardware and integrally arranging the wire clamp and the composite cross arm connecting piece, the weight and the cost of the hardware can be reduced, the distance between the wire and the composite cross arm can be effectively reduced, and the problem of wind deflection jumper can be effectively solved; the design of the U-shaped structure can well improve the electric field distribution around the cross arm connecting hardware fitting; in addition, the proper wire clamp form is selected through the improvement design combination on the hardware fitting structure, the bearing capacity of the hardware fitting is improved, the hardware fitting is suitable for a small-angle corner tower, a jumper structure of the corner tower is omitted, a lead is not required to be disconnected, the construction complexity is reduced, and the line reliability is improved.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a compound cross arm gold utensil, its characterized in that, the gold utensil includes first connecting piece, second connecting piece and a plurality of fastener, first connecting piece with second connecting piece fixed connection, the second connecting piece includes at least one U type structure, fastener fixed connection in on the second connecting piece, the fastener is suspension clamp or strain clamp.
2. The composite cross arm fitting of claim 1, further comprising a third connector fixedly connected to the first connector and/or the second connector.
3. The composite cross arm hardware fitting of claim 1, wherein the first connecting piece is a flange barrel, the number of the first connecting pieces is one, two or more, and the first connecting pieces are connected and fixed to the closed end of the U-shaped structure through a flange plate or a welding mode.
4. The composite cross arm fitting of claim 1, wherein the second connecting member is horizontally disposed, and the wire clamp is fixedly connected to two horizontal edges of the second connecting member.
5. The composite cross arm hardware of claim 1, wherein the open end of the U-shaped structure is connected closed by a cover.
6. The composite cross arm fitting of claim 1, wherein the second connecting member comprises at least two U-shaped structures and a plurality of fourth connecting members, and the at least two U-shaped structures are arranged in parallel in the same direction and are connected with each other through the fourth connecting members.
7. The composite cross arm hardware of claim 6, wherein the wire clamp is connected to the fourth connector and/or the U-shaped structure.
8. A cross arm assembly, characterized in that the cross arm assembly comprises at least two post insulators and the composite cross arm fitting of any one of claims 1 to 7, at least two post insulators being fixedly connected by the composite cross arm fitting.
9. The cross arm assembly of claim 8, wherein the cross arm assembly comprises two post insulators and two cable-stayed insulators, and the two post insulators and the two cable-stayed insulators are fixedly connected through the composite cross arm hardware fitting.
10. A transmission tower comprising a tower body and a cross arm assembly according to any one of claims 8 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021001116.4U CN212535278U (en) | 2020-06-03 | 2020-06-03 | Composite cross arm hardware fitting, cross arm assembly and power transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021001116.4U CN212535278U (en) | 2020-06-03 | 2020-06-03 | Composite cross arm hardware fitting, cross arm assembly and power transmission tower |
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| Publication Number | Publication Date |
|---|---|
| CN212535278U true CN212535278U (en) | 2021-02-12 |
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| CN202021001116.4U Active CN212535278U (en) | 2020-06-03 | 2020-06-03 | Composite cross arm hardware fitting, cross arm assembly and power transmission tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636750A (en) * | 2020-06-03 | 2020-09-08 | 上海神马电力工程有限公司 | A composite cross arm fitting, cross arm assembly and transmission tower |
| CN114142419A (en) * | 2021-12-07 | 2022-03-04 | 中国南方电网有限责任公司超高压输电公司广州局 | Wire hanging device |
| WO2024192938A1 (en) * | 2023-03-22 | 2024-09-26 | 上海神马电力工程有限公司 | Crossarm assembly and power transmission tower |
-
2020
- 2020-06-03 CN CN202021001116.4U patent/CN212535278U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636750A (en) * | 2020-06-03 | 2020-09-08 | 上海神马电力工程有限公司 | A composite cross arm fitting, cross arm assembly and transmission tower |
| WO2021244326A1 (en) * | 2020-06-03 | 2021-12-09 | 上海神马电力工程有限公司 | Composite cross arm fitting, cross arm assembly and power transmission tower |
| CN114142419A (en) * | 2021-12-07 | 2022-03-04 | 中国南方电网有限责任公司超高压输电公司广州局 | Wire hanging device |
| CN114142419B (en) * | 2021-12-07 | 2024-04-26 | 中国南方电网有限责任公司超高压输电公司广州局 | Wire hooking device |
| WO2024192938A1 (en) * | 2023-03-22 | 2024-09-26 | 上海神马电力工程有限公司 | Crossarm assembly and power transmission tower |
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Address after: 200050 room 801, building 2, No. 55, Jinlun Road, Changning District, Shanghai Patentee after: Shanghai Shenma Electric Power Engineering Co.,Ltd. Address before: 201106 room 501-2, 69 Yonghong Road, Minhang District, Shanghai Patentee before: Shanghai Shenma Electric Power Engineering Co.,Ltd. |