Large-angle angle tower

Abstract

The invention discloses a large-angle angle tower which comprises a tower body, an upper-phase cross arm set, a middle-phase cross arm set and a lower-phase cross arm set, and the upper-phase cross arm set, the middle-phase cross arm set and the lower-phase cross arm set are sequentially installed on the tower body from top to bottom and are each provided with an inner angle side wire cross arm, an outer angle side wire cross arm and an outer angle side wire jumper cross arm. The inner angle side wire cross arms are arranged on the front side of the tower body, the outer angle side wire cross arms are arranged on the left side and the right side of the tower body, the outer angle side jumper cross arms are arranged on the rear side of the tower body, connecting assemblies are arranged between the tops of the outer angle side jumper cross arms and the rear side of the tower body, and jumper assemblies are arranged at the bottoms of the outer angle side jumper cross arms. According to the embodiment of the invention, the large-angle rotation of the power transmission line is realized, the safety and stability of the large-angle angle tower are improved, and the engineering cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission lines, and in particular to a large-angle corner tower. Background Art

[0002] In power transmission line projects, corner towers are critical structures for changing line direction. Conventional corner tower designs typically accommodate angles between 0 and 90°. However, in some areas with complex terrain and limited space, transmission line routes are often strictly restricted, which can result in the required angle exceeding 90°. When angles exceed this range, continuing to use conventional tower designs can cause the electrical distance between the conductors and the tower to exceed safety limits, potentially causing electrical faults and compromising transmission line safety. Summary of the Invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a large-angle corner tower, which not only realizes the large-angle turning of the transmission line, improves the safety and stability of the large-angle corner tower, but also effectively reduces the project cost.

[0004] An embodiment of the present invention provides a large-angle corner tower, comprising a tower body and an upper phase crossarm group, a middle phase crossarm group, and a lower phase crossarm group, which are sequentially installed on the tower body from top to bottom. The upper phase crossarm group, the middle phase crossarm group, and the lower phase crossarm group are all provided with inner corner conductor crossarms, outer corner conductor crossarms, and outer corner jumper crossarms. The inner corner conductor crossarms are arranged on the front side of the tower body, the outer corner conductor crossarms are arranged on the left and right sides of the tower body, and the outer corner jumper crossarms are arranged on the rear side of the tower body. A connecting assembly is arranged between the top of the outer corner jumper crossarm and the rear side of the tower body, and a jumper assembly is arranged at the bottom of the outer corner jumper crossarm.

[0005] A large-angle corner tower provided according to an embodiment of the present invention has at least the following beneficial effects: by rationally arranging the upper, middle and lower phase crossarm groups on the tower body, and respectively providing the inner corner side conductor crossarm, the outer corner side conductor crossarm and the outer corner side jumper crossarm in each crossarm group for supporting the conductors on the inner corner side and the outer corner side, and connecting the outer corner side jumper crossarm and the tower body through a connecting component, and connecting the large and small side conductors through a jumper component, the corner tower structure meets the large-angle turning requirements of the transmission line while optimizing the transmission line path, ensuring that the electrical distance between the conductor and the tower body meets the safety standards, improving the safety and stability of the large-angle corner tower, and effectively reducing the project cost.

[0006] According to some embodiments of the present invention, the inner corner side conductor crossarm is provided with a first suspension point and a second suspension point, a first tension insulator string is connected between the inner corner side conductor crossarm and the large side inner corner side conductor, and the upper end of the first tension insulator string is hung on the first suspension point, a second tension insulator string is connected between the inner corner side conductor crossarm and the small side inner corner side conductor, and the upper end of the second tension insulator string is hung on the second suspension point.

[0007] According to some embodiments of the present invention, a first inner corner side jumper string and a second inner corner side jumper string are connected between the large side inner corner side wire and the small side inner corner side wire, the upper end of the first inner corner side jumper string is hung on the first hanging point, and the upper end of the second inner corner side jumper string is hung on the second hanging point.

[0008] According to some embodiments of the present invention, the outer corner side conductor crossarm includes a first outer corner side conductor crossarm arranged on the left side of the tower body, the first outer corner side conductor crossarm is provided with a third suspension point, a third tension insulator string is connected between the first outer corner side conductor crossarm and the small side outer corner side conductor, and the upper end of the third tension insulator string is hung on the third suspension point.

[0009] According to some embodiments of the present invention, the outer corner side conductor cross arm also includes a second outer corner side conductor cross arm arranged on the right side of the tower body, the second outer corner side conductor cross arm is provided with a fourth suspension point, and a fourth tension insulator string is connected between the second outer corner side conductor cross arm and the large side outer corner side conductor, and the upper end of the fourth tension insulator string is hung on the fourth suspension point.

[0010] According to some embodiments of the present invention, the jumper assembly, the first outer corner jumper string and the second outer corner jumper string are connected between the large side outer corner side wire and the small side outer corner side wire, the upper end of the first outer corner side jumper string is hung on the third hanging point, and the upper end of the second outer corner side jumper string is hung on the fourth hanging point.

[0011] According to some embodiments of the present invention, the outer corner side jumper crossarm is provided with a fifth hanging point and a sixth hanging point, the jumper assembly includes a third outer corner side jumper string, a fourth outer corner side jumper string and a rigid jumper, the upper end of the third outer corner side jumper string is hung on the fifth hanging point, the upper end of the fourth outer corner side jumper string is hung on the sixth hanging point, and the rigid jumper is respectively connected to the lower end of the third outer corner side jumper string and the lower end of the fourth outer corner side jumper string.

[0012] According to some embodiments of the present invention, the first inner corner jumper string, the second inner corner jumper string, the first outer corner jumper string, the second outer corner jumper string, the third outer corner jumper string and the fourth outer corner jumper string are all rigid jumper insulator strings.

[0013] According to some embodiments of the present invention, the connecting assembly includes a plurality of flexible slings, which are respectively obliquely arranged on both sides of the outer corner jumper crossarm, one end of any flexible sling is fixed to the rear side of the tower body, and the other end is anchored downward to the outer corner jumper crossarm.

[0014] According to some embodiments of the present invention, a ground crossarm is further included that is installed on the top of the tower body and located above the upper phase crossarm group, and the ground crossarm includes a first ground crossarm arranged on the left side of the tower body and a second ground crossarm arranged on the right side of the tower body.

[0015] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purposes and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation to the technical solution of the present invention.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the three-dimensional structure of a large-angle corner tower provided by an embodiment of the present invention; Figure 2 This is a front view of a large-angle corner tower provided by an embodiment of the present invention; Figure 3 is a side view of a large-angle corner tower provided by an embodiment of the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of the crossarm group provided by an embodiment of the present invention; Figure 5 It is a top view of the cross arm group provided by an embodiment of the present invention.

[0018] Reference numerals: tower body 10, upper phase cross arm group 20, middle phase cross arm group 30, lower phase cross arm group 40, inner corner side conductor cross arm 100, outer corner side conductor cross arm 200, outer corner side jumper cross arm 300, connection assembly 310, jumper assembly 320, first suspension point 101, second suspension point 102, first tension insulator string 110, second tension insulator string 120, first inner corner side jumper string 130, second inner corner side jumper string 140, first outer corner side conductor cross arm 210, first outer corner side jumper string 130, second inner corner side jumper string 140, first outer corner side conductor cross arm 210, second inner corner side jumper string 150, first outer corner side conductor cross arm 210, first outer ... conductor cross arm 210, first outer corner side conductor cross arm 210, first outer corner side conductor cross arm 210, first outer corner side conductor cross arm 210, first outer corner side conductor cross arm 210, first outer corner side conductor cross arm 210, first outer corner side conductor cross arm 210, first outer corner side conductor cross arm 210, first inner corner side conductor cross arm 210, first inner corner side conductor cross arm 210, first inner corner side conductor cross arm 210, first inner corner side conductor cross arm 210, first inner corner side conductor cross arm 210, first inner corner side conductor cross arm 210, first Three suspension points 201, third tension insulator string 211, second outer corner conductor crossarm 220, fourth suspension point 202, fourth tension insulator string 221, first outer corner jumper string 230, second outer corner jumper string 240, fifth suspension point 301, sixth suspension point 302, third outer corner jumper string 321, fourth outer corner jumper string 322, rigid jumper 323, flexible sling 311, ground wire crossarm 50, first ground wire crossarm 510, second ground wire crossarm 520. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. "Any one" refers to one or more, and "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly indicating the quantity of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] It should be noted that the terms "dispose," "install," and "connect" in the embodiments of the present invention should be interpreted broadly. Those skilled in the art can reasonably determine the specific meanings of these terms in the embodiments of the present invention based on the specific content of the technical solution. For example, the term "connect" can refer to mechanical connection, electrical connection, or communication; it can be direct connection or indirect connection through an intermediary.

[0022] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] In power transmission line projects, corner towers are critical structures for changing line direction. Conventional corner tower designs typically accommodate angles between 0 and 90°. However, in some areas with complex terrain and limited space, transmission line routes are often strictly restricted, which can result in the required angle exceeding 90°. When angles exceed this range, continuing to use conventional tower designs can cause the electrical distance between the conductors and the tower to exceed safety limits, potentially causing electrical faults and compromising transmission line safety.

[0024] Based on this, an embodiment of the present invention provides a large-angle corner tower, which not only realizes the large-angle rotation of the transmission line, improves the safety and stability of the large-angle corner tower, but also effectively reduces the project cost.

[0025] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0026] Reference Figure 1 , Figure 1 The figure is a schematic diagram of the three-dimensional structure of a large-angle corner tower provided by one embodiment of the present invention. In some embodiments of the present invention, the large-angle corner tower includes a tower body 10 and an upper phase crossarm group 20, a middle phase crossarm group 30, and a lower phase crossarm group 40, which are sequentially installed on the tower body 10 from top to bottom. The upper phase crossarm group 20, the middle phase crossarm group 30, and the lower phase crossarm group 40 are each equipped with an inner corner conductor crossarm 100, an outer corner conductor crossarm 200, and an outer corner jumper crossarm 300. The inner corner conductor crossarm 100 is arranged at the front side of the tower body 10, the outer corner conductor crossarm 200 is arranged on the left and right sides of the tower body 10, and the outer corner jumper crossarm 300 is arranged at the rear side of the tower body 10. A connecting assembly 310 is arranged between the top of the outer corner jumper crossarm 300 and the rear side of the tower body 10, and a jumper assembly 320 is arranged at the bottom of the outer corner jumper crossarm 300.

[0027] According to an embodiment of the present invention, a large-angle corner tower is provided. By rationally arranging upper, middle and lower phase crossarm groups 40 on the tower body 10, and respectively providing an inner corner conductor crossarm 100, an outer corner conductor crossarm 200 and an outer corner jumper crossarm 300 in each crossarm group for supporting the conductors on the inner and outer corners, and connecting the outer corner jumper crossarm 300 and the tower body 10 through a connecting component 310, and connecting the large and small side conductors through a jumper component 320, the corner tower structure meets the large-angle corner requirements of the transmission line while optimizing the transmission line path, ensuring that the electrical distance between the conductor and the tower body 10 meets safety standards, improving the safety and stability of the large-angle corner tower, and effectively reducing engineering costs.

[0028] Reference Figures 1 to 5In some embodiments of the present invention, the inner corner conductor cross arm 100 is provided with a first suspension point 101 and a second suspension point 102, a first tension insulator string 110 is connected between the inner corner conductor cross arm 100 and the large-side inner corner conductor, and the upper end of the first tension insulator string 110 is hung on the first suspension point 101, a second tension insulator string 120 is connected between the inner corner conductor cross arm 100 and the small-side inner corner conductor, and the upper end of the second tension insulator string 120 is hung on the second suspension point 102.

[0029] It is understandable that Figure 4 This is a three-dimensional structural diagram of one of the cross arm groups of a large-angle corner tower. Figure 5 This is a top view of one of the crossarm groups of the large-angle corner tower, combined with Figure 4 and Figure 5 The specific structural components of the upper phase crossarm group 20, the middle phase crossarm group 30, or the lower phase crossarm group 40 can be seen. Specifically, the inner corner conductor crossarm 100 is installed on the inner corner side of the corner tower, and two suspension points are set at the end of the inner corner conductor crossarm 100, and the first tension insulator string 110 and the second tension insulator string 120 are respectively suspended. This makes the installation and removal of the insulator strings more convenient, facilitating on-site construction and subsequent maintenance work. At the same time, the upper end of the first tension insulator string 110 is suspended at the first suspension point 101, and the lower end is connected to the large inner corner conductor. The upper end of the second tension insulator string 120 is suspended at the second suspension point 102, and the lower end is connected to the small inner corner conductor. This ensures that the large and small inner corner conductors are stably suspended on the inner corner conductor crossarm 100, so that the transmission line facing the inner corner end and the transmission line starting point are electrically isolated from the corner tower, improving the safety of the transmission line. It should be noted that at high-angle corners, the inner-corner conductors on the large and small sides are connected via tension insulator strings, meeting the bidirectional connection requirements of the transmission line at high-angle corners and ensuring the continuity of power supply and the integrity of the transmission line. Furthermore, the tension insulator strings can withstand the tension of the conductors, ensuring the mechanical stability of the conductors in different directions. They can effectively balance the tension of the conductors, preventing deformation of the tower body 10 or damage to the conductors due to uneven tension, and thus improving the stability of the high-angle corner tower.

[0030] Reference Figures 1 to 5 In some embodiments of the present invention, a first inner corner side jumper string 130 and a second inner corner side jumper string 140 are connected between the large side inner corner side wire and the small side inner corner side wire. The upper end of the first inner corner side jumper string 130 is hung on the first hanging point 101, and the upper end of the second inner corner side jumper string 140 is hung on the second hanging point 102.

[0031] It should be noted that the first inner corner jumper string 130 and the second inner corner jumper string 140 can be respectively hung on the first hanging point 101 and the second hanging point 102 of the inner corner conductor crossarm 100, so that electrical conduction can be achieved between the large side and small side inner corner conductors through the jumper connection. Specifically, the upper end of the first inner corner jumper string 130 can be hung on the first hanging point 101, and the lower end is connected to the large side inner corner jumper. At the same time, the upper end of the second inner corner jumper string 140 can be hung on the second hanging point 102, and the lower end is connected to the small side inner corner jumper. This can ensure that the insulation distance between the large side and small side inner corner conductors and the inner corner conductor crossarm 100 on the front side of the tower body 10 meets the safety standards, thereby achieving a large-angle turning angle.

[0032] Reference Figures 1 to 5 In some embodiments of the present invention, the outer corner conductor crossarm 200 includes a first outer corner conductor crossarm 210 arranged on the left side of the tower body 10, and the first outer corner conductor crossarm 210 is provided with a third suspension point 201. A third tension insulator string 211 is connected between the first outer corner conductor crossarm 210 and the small-side outer corner conductor, and the upper end of the third tension insulator string 211 is hung on the third suspension point 201.

[0033] It is understood that the outer corner conductor crossarms 200 are installed on the outer corners of the corner tower and are located on the left and right sides of the tower body 10. The first outer corner conductor crossarm 210 is located on the left side of the tower body 10. Specifically, by providing a third suspension point 201 at the end of the first outer corner conductor crossarm 210 and attaching a third tension insulator string 211, the installation and removal of the insulator string is more convenient, facilitating on-site construction and subsequent maintenance. Simultaneously, the upper end of the third tension insulator string 211 is attached to the third suspension point 201, and the lower end is connected to the small-side outer corner conductor, thereby ensuring that the small-side outer corner conductor is stably suspended on the first outer corner conductor crossarm 210. This ensures electrical insulation between the transmission line on the outer corner side facing the line starting point and the corner tower, thereby improving the safety of the transmission line on the large-angle corner tower.

[0034] Reference Figures 1 to 5 In some embodiments of the present invention, the outer corner conductor crossarm 200 also includes a second outer corner conductor crossarm 220 arranged on the right side of the tower body 10, and the second outer corner conductor crossarm 220 is provided with a fourth suspension point 202. A fourth tension insulator string 221 is connected between the second outer corner conductor crossarm 220 and the large-side outer corner conductor, and the upper end of the fourth tension insulator string 221 is hung on the fourth suspension point 202.

[0035] It should be noted that the other part of the outer corner conductor crossarm 200 is a second outer corner conductor crossarm 220, located on the right side of the tower body 10. Specifically, by providing a fourth suspension point 202 at the end of the second outer corner conductor crossarm 220 and attaching a fourth tension insulator string 221, the installation and removal of the insulator string is facilitated, facilitating on-site construction and subsequent maintenance. Furthermore, the upper end of the fourth tension insulator string 221 is attached to the fourth suspension point 202, while the lower end is connected to the large-side outer corner conductor. This ensures that the large-side outer corner conductor is stably suspended on the second outer corner conductor crossarm 220, thereby electrically isolating the transmission line at the outer corner facing the line end from the corner tower, thereby improving the safety of the transmission line. It should be understood that at the high-angle corner, the large and small-side outer corner conductors are connected by tension insulator strings, respectively, meeting the bidirectional connection requirements of the transmission line at the high-angle corner tower, ensuring power supply continuity and transmission line integrity.

[0036] In some embodiments of the present invention, Figure 5 As shown, the first and second outer corner conductor crossarms 210, 220, located on the left and right sides of the tower body 10, together with the outer corner jumper crossarm 300 located at the rear of the tower body 10, form a T-shaped corner structure. Consequently, the outer corner conductors on the large and small sides can sequentially pass through the first, second, and outer corner conductor crossarms 210, 220, and outer corner jumper crossarms 300, enabling smooth, wide-angle turns. This not only improves the mechanical stability of the tower body 10 but also enhances the adaptability of the transmission line on the wide-angle turn tower in complex terrain and wide-angle turns.

[0037] Reference Figures 1 to 5 In some embodiments of the present invention, a jumper assembly 320, a first outer corner jumper string 230, and a second outer corner jumper string 240 are connected between the large-side outer corner wire and the small-side outer corner wire. The upper end of the first outer corner jumper string 230 is hung on the third hanging point 201, and the upper end of the second outer corner jumper string 240 is hung on the fourth hanging point 202.

[0038] It should be noted that the first outer corner side jumper string 230 and the second outer corner side jumper string 240 can be respectively hung on the third hanging point 201 of the first outer corner side conductor cross arm 210 and the fourth hanging point 202 of the second outer corner side conductor cross arm 220. At the same time, the first outer corner side jumper string 230 and the second outer corner side jumper string 240 are also connected to the jumper assembly 320 of the outer corner side jumper cross arm 300, so that the large side and small side outer corner side conductors can be electrically connected by the jumper connection. Specifically, the upper end of the first outer corner side jumper string 230 can be hung on the third hanging point 201 of the first outer corner side conductor cross arm 210. Point 201, the lower end is connected to the large side outer corner jumper, and at the same time, the upper end of the second outer corner jumper string 240 is hung on the fourth suspension point 202, and the lower end is connected to the small side outer corner jumper, and the large side outer corner jumper and the small side outer corner jumper are connected and conductive through the jumper assembly 320, thereby ensuring that the insulation distance between the large and small side outer corner conductors and the first outer corner conductor crossarms 210 and the second outer corner conductor crossarms 220 on the left and right sides of the tower body 10, as well as the outer corner jumper crossarms 300 on the rear side of the tower body 10 meet the safety standards, thereby achieving a large-angle turning angle.

[0039] Reference Figures 1 to 5 In some embodiments of the present invention, the outer corner side jumper crossarm 300 is provided with a fifth suspension point 301 and a sixth suspension point 302, and the jumper assembly 320 includes a third outer corner side jumper string 321, a fourth outer corner side jumper string 322 and a rigid jumper 323. The upper end of the third outer corner side jumper string 321 is hung on the fifth suspension point 301, the upper end of the fourth outer corner side jumper string 322 is hung on the sixth suspension point 302, and the rigid jumper 323 is respectively connected to the lower end of the third outer corner side jumper string 321 and the lower end of the fourth outer corner side jumper string 322.

[0040] It is understood that by providing a fifth hanging point 301 and a sixth hanging point 302 at the end of the outer corner jumper crossarm 300, they are used to respectively hang the third outer corner jumper string 321 and the fourth outer corner jumper string 322 of the jumper assembly 320. Specifically, the upper end of the third outer corner jumper string 321 is hung on the fifth hanging point 301, while the upper end of the fourth outer corner jumper string 322 is hung on the sixth hanging point 302. The lower ends of the third outer corner jumper string 321 and the fourth outer corner jumper string 322 are connected to the rigid jumper 323, thereby electrically connecting the large-side outer corner jumper and the small-side outer corner jumper through the rigid jumper 323, thereby ensuring that the insulation distance between the large-side and small-side outer corner conductors and the outer corner jumper crossarm 300 on the rear side of the tower body 10 meets safety standards, thereby achieving a large angle of rotation.

[0041] In some embodiments of the present invention, the first inner corner jumper string 130, the second inner corner jumper string 140, the first outer corner jumper string 230, the second outer corner jumper string 240, the third outer corner jumper string 321, and the fourth outer corner jumper string 322 are all rigid jumper insulator strings. It should be noted that by using rigid jumper insulator strings 323 as jumper strings for the inner and outer corner conductors, the inner and outer corner conductors can be effectively electrically isolated from the tower 10 or crossarms, ensuring the safe operation of the transmission line. Furthermore, the rigid jumper insulator strings can withstand mechanical stresses such as tension and wind loads on the inner and outer corner conductors, preventing displacement or damage to the inner and outer corner conductors due to external forces, thereby improving the safety and stability of the transmission line.

[0042] Reference Figure 1 、 Figure 3 and Figure 4 In some embodiments of the present invention, the connection assembly 310 includes multiple flexible slings 311, which are arranged at an angle on either side of the outer corner jumper crossarm 300. One end of each flexible sling 311 is fixed to the rear side of the tower body 10, and the other end is anchored downwardly to the outer corner jumper crossarm 300. It is understood that the connection assembly 310 can be made of multiple flexible slings 311 made of high-strength fiber or steel wire rope. Furthermore, by arranging the multiple flexible slings 311 at an angle, the tensile force on the outer corner jumper crossarm 300 can be effectively dispersed and balanced, thereby improving the structural stability of the large-angle corner tower. Furthermore, the inclined arrangement of the flexible slings 311 optimizes the spatial layout, facilitates installation and maintenance, and reduces engineering costs.

[0043] Reference Figures 1 to 3 In some embodiments of the present invention, a ground crossarm 50 is further included, mounted at the top of the tower 10 and above the upper phase crossarm assembly 20. The ground crossarm 50 comprises a first ground crossarm 510 located on the left side of the tower 10 and a second ground crossarm 520 located on the right side of the tower 10. It should be noted that the ground crossarm 50 is used to support the ground wire of the transmission line. Installing it at the top of the tower 10 enhances the stability of the tower 10. Specifically, the first ground crossarm 510 can be located on the left side of the top of the tower 10, and the second ground crossarm 520 can be located on the right side of the top of the tower 10. Furthermore, the ground crossarm 50 is positioned above the upper phase crossarm assembly 20. Together with the upper phase crossarm assembly 20, the middle phase crossarm assembly 30, and the lower phase crossarm assembly 40, it forms a four-layer corner tower. This not only effectively utilizes the space in the tower 10 and reduces interactions with other components, but also reduces maintenance difficulty and engineering costs.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the scope of the present invention.

Claims

1. A large-angle corner tower, characterized in that: It includes a tower body and an upper phase crossarm group, a middle phase crossarm group and a lower phase crossarm group installed on the tower body from top to bottom. The upper phase crossarm group, the middle phase crossarm group and the lower phase crossarm group are all provided with an inner corner conductor crossarm, an outer corner conductor crossarm and an outer corner jumper crossarm. The inner corner conductor crossarm is arranged on the front side of the tower body, the outer corner conductor crossarm is arranged on the left and right sides of the tower body, and the outer corner jumper crossarm is arranged on the rear side of the tower body. A connecting component is arranged between the top of the outer corner jumper crossarm and the rear side of the tower body, and a jumper component is arranged at the bottom of the outer corner jumper crossarm.

2. The large-angle corner tower according to claim 1, characterized in that: The inner corner side conductor cross arm is provided with a first suspension point and a second suspension point. A first tension insulator string is connected between the inner corner side conductor cross arm and the large side inner corner side conductor, and the upper end of the first tension insulator string is hung on the first suspension point. A second tension insulator string is connected between the inner corner side conductor cross arm and the small side inner corner side conductor, and the upper end of the second tension insulator string is hung on the second suspension point.

3. The large-angle corner tower according to claim 2, characterized in that: A first inner corner side jumper string and a second inner corner side jumper string are connected between the large side inner corner side wire and the small side inner corner side wire. The upper end of the first inner corner side jumper string is hung on the first hanging point, and the upper end of the second inner corner side jumper string is hung on the second hanging point.

4. The large-angle corner tower according to claim 3, characterized in that: The outer corner conductor cross arm includes a first outer corner conductor cross arm arranged on the left side of the tower body, the first outer corner conductor cross arm is provided with a third suspension point, a third tension insulator string is connected between the first outer corner conductor cross arm and the small-side outer corner conductor, and the upper end of the third tension insulator string is hung on the third suspension point.

5. The large-angle corner tower according to claim 4, characterized in that: The outer corner conductor cross arm also includes a second outer corner conductor cross arm arranged on the right side of the tower body, the second outer corner conductor cross arm is provided with a fourth suspension point, a fourth tension insulator string is connected between the second outer corner conductor cross arm and the large-side outer corner conductor, and the upper end of the fourth tension insulator string is hung on the fourth suspension point.

6. The large-angle corner tower according to claim 5, characterized in that: The jumper assembly, the first outer corner jumper string and the second outer corner jumper string are connected between the large side outer corner wire and the small side outer corner wire. The upper end of the first outer corner jumper string is hung on the third hanging point, and the upper end of the second outer corner jumper string is hung on the fourth hanging point.

7. The large-angle corner tower according to claim 6, characterized in that: The outer corner side jumper cross arm is provided with a fifth hanging point and a sixth hanging point, and the jumper assembly includes a third outer corner side jumper string, a fourth outer corner side jumper string and a rigid jumper, the upper end of the third outer corner side jumper string is hung on the fifth hanging point, the upper end of the fourth outer corner side jumper string is hung on the sixth hanging point, and the rigid jumper is respectively connected to the lower end of the third outer corner side jumper string and the lower end of the fourth outer corner side jumper string.

8. The large-angle corner tower according to claim 7, characterized in that: The first inner corner jumper string, the second inner corner jumper string, the first outer corner jumper string, the second outer corner jumper string, the third outer corner jumper string and the fourth outer corner jumper string are all rigid jumper insulator strings.

9. The large-angle corner tower according to claim 1, characterized in that: The connecting assembly includes a plurality of flexible slings, which are respectively obliquely arranged on both sides of the outer corner jumper crossarm. One end of any flexible sling is fixed to the rear side of the tower body, and the other end is anchored downward to the outer corner jumper crossarm.

10. The large-angle corner tower according to claim 1, characterized in that: It also includes a ground cross arm installed on the top of the tower body and located above the upper phase cross arm group, and the ground cross arm includes a first ground cross arm arranged on the left side of the tower body and a second ground cross arm arranged on the right side of the tower body.

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