Ground wire double-hanging-point structure of suspension tower of power transmission line

Abstract

A power transmission line overhanging tower ground wire double-hanging-point structure comprises an iron tower fixing frame, supporting angle steel is symmetrically arranged on the iron tower fixing frame and fixedly connected with the iron tower fixing frame through a first locking piece, and the supporting angle steel is fixedly connected with symmetrically-arranged hanging point angle steel through a second locking piece. The hanging point angle steel is connected with one end of the installation piece through a third locking piece, an installation groove is formed in the installation piece, a hanging point steel plate is arranged in the installation groove and fixedly connected with the installation piece through a fourth locking piece, and hanging holes are symmetrically formed in the hanging point steel plate. By adopting the structure, the original structure of the transmission tower is slightly changed, flexibly adjusted and refitted, and is convenient and practical; the hanging point steel plates are convenient to prefabricate, are independently manufactured according to different sizes and intervals of hanging holes, and are convenient to disassemble, assemble and select; the whole structure is simple and firm, modification, maintenance and replacement are convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission line equipment structures, in particular to a ground wire double hanging point structure of a transmission line suspension tower. Background Art

[0002] Most of the existing 220 kV and below China Southern Power Grid and State Grid towers with typical design have single hanging points for the ground wire. Taking the typical design 2D1W2-Z3 tower of the Southern Power Grid as an example, only one tower connection hardware such as a trunnion hanging plate can be installed between the two hanging angles, which is a single hanging point and cannot meet the latest requirements of independent double strings. Therefore, it is necessary to develop a structure that changes the single hanging point of the ground wire of the transmission line suspension tower to a double hanging point to meet the demand that the ground wire suspension should adopt an independent double string design. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a double hanging point structure for the ground wire of a transmission line suspension tower, which has little change on the original structure of the transmission tower, and is flexible to adjust and modify, and is convenient and practical; the hanging point steel plates are convenient to prefabricate, and are individually made according to the size and interval of the hanging holes, and are convenient to disassemble, select and operate; the overall structure is simple and reliable, and is convenient to modify, maintain and replace, and has strong practicality.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a double hanging point structure for the ground wire of a transmission line suspension tower, including an iron tower fixing frame, on which supporting angle steels are symmetrically arranged and fixedly connected to the iron tower fixing frame through a first locking member, the supporting angle steels are fixedly connected to the symmetrically arranged hanging angle steels through a second locking member, the hanging angle steels are connected to one end of a mounting member through a third locking member, the mounting member is provided with a mounting groove, a hanging point steel plate is provided in the mounting groove, and is fixedly connected to the hanging point steel plate through a fourth locking member, and hanging holes are symmetrically arranged on the hanging point steel plate.

[0005] In a preferred solution, stiffening plates are symmetrically provided on the hanging angle steels.

[0006] In a preferred solution, the mounting member is provided with a rotating sleeve that cooperates with the third locking member.

[0007] In a preferred solution, the first locking member, the second locking member, the third locking member and the fourth locking member are all double-thread fixing bolts.

[0008] In a preferred solution, the stiffening plate is smaller than the hanging angle steel and is welded to the hanging angle steel.

[0009] The utility model provides a transmission line suspension tower ground wire double hanging point structure, which has the following beneficial effects by adopting the above structure:

[0010] (1) The original structure of the transmission tower is slightly changed, and it can be flexibly adjusted and modified, which is convenient and practical;

[0011] (2) The hanging point steel plate is easy to prefabricate and can be made individually according to the size and spacing of the hanging holes. It is easy to disassemble and operate;

[0012] (3) The overall structure is simple and reliable, easy to modify, maintain and replace, and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the connection structure of the iron tower fixing frame and the supporting angle steel of the utility model.

[0016] Figure 3 This is a schematic diagram of the hanging angle steel structure of the utility model.

[0017] Figure 4 This is a schematic diagram of the mounting structure of the utility model.

[0018] Figure 5 This is a schematic diagram of the hanging point steel plate structure of the utility model.

[0019] In the figure: iron tower fixing frame 1, supporting angle steel 2, hanging angle steel 3, mounting member 4, hanging point steel plate 5, first locking member 6, second locking member 7, third locking member 8, stiffening plate 9, rotating sleeve 10, mounting groove 11, fourth locking member 12, hanging hole 13. DETAILED DESCRIPTION

[0020] like Figure 1-5 A double hanging point structure for a ground wire of a suspended tower of a power transmission line includes an iron tower fixing frame 1, on which supporting angle steels 2 are symmetrically arranged and fixedly connected to the iron tower fixing frame 1 through a first locking member 6, the supporting angle steels 2 are fixedly connected to symmetrically arranged hanging angle steels 3 through a second locking member 7, the hanging angle steels 3 are connected to one end of a mounting member 4 through a third locking member 8, the mounting member 4 is provided with a mounting groove 11, a hanging point steel plate 5 is arranged in the mounting groove 11 and fixedly connected to the hanging point steel plate 5 through a fourth locking member 12, and hanging holes 13 are symmetrically arranged on the hanging point steel plate 5.

[0021] In the preferred solution, the hanging angle steel 3 is symmetrically provided with stiffening plates 9 to improve the structural strength and make the assembly more stable and reliable.

[0022] In a preferred solution, the mounting member 4 is provided with a rotating sleeve 10 that cooperates with the third locking member 8. The rotating cooperation makes the adjustment flexible and convenient, and the tension self-adaptation ability is strong.

[0023] In the preferred solution, the first locking member 6, the second locking member 7, the third locking member 8 and the fourth locking member 12 are all double-thread fixing bolts. The double threads of the screws are staggered and matched with two nuts with different thread directions to prevent the locking members from loosening.

[0024] In the preferred solution, the stiffening plate 9 is smaller than the hanging angle steel 3 and is welded to the hanging angle steel 3. The processing and modification cost is low and it is convenient and flexible.

[0025] The beneficial effects of the utility model are as follows: little change is made to the original structure of the transmission tower, and flexible adjustment and modification are provided, which is convenient and practical; the hanging point steel plates are conveniently prefabricated and individually made according to the sizes and intervals of the hanging holes, and are convenient to disassemble, assemble, select and operate; the overall structure is simple and reliable, and modification, maintenance and replacement are convenient, and the practicability is strong.

Claims

1. A double-hanging-point structure for a ground wire of a transmission line suspension tower, comprising an iron tower fixing frame (1), characterized in that: The iron tower fixing frame (1) is symmetrically provided with supporting angle steels (2) and fixedly connected to the iron tower fixing frame (1) via a first locking member (6); the supporting angle steels (2) are fixedly connected to symmetrically provided hanging angle steels (3) via a second locking member (7); the hanging angle steels (3) are connected to one end of a mounting member (4) via a third locking member (8); the mounting member (4) is provided with a mounting groove (11); a hanging point steel plate (5) is provided in the mounting groove (11) and fixedly connected to the hanging point steel plate (5) via a fourth locking member (12); and hanging holes (13) are symmetrically provided on the hanging point steel plate (5).

2. A double hanging point structure for ground wire of a transmission line suspension tower according to claim 1, characterized in that: Stiffening plates (9) are symmetrically arranged on the hanging point angle steel (3).

3. A double hanging point structure for ground wire of a transmission line suspension tower according to claim 1, characterized in that: The mounting member (4) is provided with a rotating sleeve (10) that cooperates with the third locking member (8).

4. A double hanging point structure for ground wire of a transmission line suspension tower according to claim 1, characterized in that: The first locking piece (6), the second locking piece (7), the third locking piece (8) and the fourth locking piece (12) are all double-thread fixing bolts.

5. A double hanging point structure for ground wire of a transmission line suspension tower according to claim 2, characterized in that: The stiffening plate (9) is smaller in size than the hanging angle steel (3) and is welded to the hanging angle steel (3).

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