Combined strain tower structure

Abstract

The utility model relates to the technical field of strain towers, in particular to a combined strain tower structure, which is characterized in that a first threaded hole and a second threaded hole are in threaded connection with a bolt, the outer wall of a conical barrel is attached to a conical groove, and the left side of the conical barrel is fixedly connected with a post insulator. According to the combined type strain tower structure, through cooperation of the tower body, the post insulator and the installation structure, the conical barrel is inserted into the conical groove, then the strain fitting is hung on the tower body in a string mode, and then an operator inserts a bolt into a groove in the right side of the post insulator, so that the bolt is sequentially screwed into a first threaded hole and a second threaded hole; according to the invention, the support insulator can be fixed on the tower body, and the combination work of parts such as the support insulator and the tower body is completed, so that the first threaded hole and the second threaded hole can be quickly aligned through the matching of the plurality of conical barrels and the conical grooves, and the support insulator can be installed in a short time.

Description

A composite tension tower structure Technical Field

[0001] This utility model relates to the field of tension tower technology, specifically a combined tension tower structure. Background Technology

[0002] Tension towers are an important type of tower in power transmission lines. They are mainly used to bear the tensile load of conductors and ensure the stability and safety of the line. Tension towers are widely used by large power companies such as State Grid Corporation of China and China Southern Power Grid Company and are an indispensable and important component of power transmission lines.

[0003] For example, a compact composite crossarm structure and tension tower with announcement number "CN217135118U" employs a single-column, single-tension design, fully leveraging the advantages of composite crossarms. This further reduces the ground wire support and interlayer spacing, while also minimizing the root opening, resulting in an overall compact design. The compact composite crossarm tension tower reduces conductor interlayer spacing, shortens corridor width, and reduces foundation footprint, solving the problems of traditional tension towers in areas with limited corridor space and high land acquisition requirements. However, when fixing the support insulators, operators need to rotate multiple bolts to secure them to the tower body. The threaded holes on the support insulators are not easily aligned with the threaded holes on the tower body, requiring a considerable amount of time to secure the support insulators. Summary of the Invention

[0004] The purpose of this utility model is to solve the problem that when fixing post insulators, operators need to rotate multiple bolts to fix the post insulators to the tower body, and the threaded holes on the post insulators are not easy to align with the threaded holes on the tower body, which takes a long time to fix the post insulators. Therefore, a combined tension tower structure is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined tension tower structure is designed, including a tower body and a tension fitting string. The upper left side of the tower body is connected to the tension fitting string, and an installation structure is provided on the lower left side of the tower body. The installation structure includes a conical cylinder, and the inner wall of multiple conical cylinders is machined with a first threaded hole. The first threaded hole and the second threaded hole are both threaded with bolts. The outer wall of each conical cylinder fits into a conical groove, and the left side of each conical cylinder is fixedly connected to a support insulator.

[0007] Preferably, the conical grooves are all machined on the left side of the inner wall of the tower body, and the right side of the conical grooves are all machined with a second threaded hole.

[0008] Preferably, a connecting flange is fixedly connected to the left side of the post insulator.

[0009] Preferably, a line insulator is provided above the connecting flange.

[0010] Preferably, both sides of the line insulator are movably connected to the tension fitting string and the connecting flange respectively via pins.

[0011] The present invention proposes a combined tension tower structure with the following advantages: through the cooperation of the tower body, post insulator, and installation structure, a conical cylinder is inserted into a conical groove, and then tension hardware is strung onto the tower body. Then, the operator inserts bolts into the groove on the right side of the post insulator, and screws the bolts into the first threaded hole and the second threaded hole in sequence, thereby fixing the post insulator to the tower body. This completes the combination of the post insulator and other components with the tower body. By cooperating with multiple conical cylinders and conical grooves, the first threaded hole and the second threaded hole can be quickly aligned, thus requiring less time to install the post insulator. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the structure of this utility model;

[0013] Figure 2 is a front sectional view of Figure 1;

[0014] Figure 3 is a magnified view of part A in Figure 2;

[0015] Figure 4 shows the connection relationship between the tower body, the conical groove, and the second threaded hole in Figure 2.

[0016] Figure 5 is a partial three-dimensional schematic diagram of the installation structure in Figure 3; Figure 6 is a schematic diagram of Figure 3.

[0017] 2. A partial left view.

[0018] In the diagram: 1. Tower body, 2. Installation structure, 201. Conical cylinder, 202. Bolt, 203. Conical groove, 204. First threaded hole, 205. Second threaded hole, 3. Post insulator, 4. Connecting flange, 5. Line insulator, 6. Tension fitting string. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Referring to Figures 1-6: In this embodiment, a combined tension tower structure includes a tower body 1 and a tension fitting string 6. The upper left side of the tower body 1 is connected to the tension fitting string 6. An installation structure 2 is provided on the lower left side of the tower body 1. The installation structure 2 includes a conical cylinder 201. The inner wall of multiple conical cylinders 201 is machined with a first threaded hole 204. The first threaded hole 204 and the second threaded hole 205 are both threadedly connected to bolts 202. The outer wall of the conical cylinders 201 is fitted with a conical groove 203. The left side of the conical cylinders 201 is fixedly connected to a post insulator 3. The conical grooves 201 are all machined on the left side of the inner wall of the tower body 1. The right side of the conical grooves 201 is machined with a second threaded hole 205. A connecting flange 4 is fixedly connected to the left side of the post insulator 3. A line insulator 5 is provided above the connecting flange 4. The two sides of the line insulator 5 are movably connected to the tension fitting string 6 and the connecting flange 4 respectively through pins. The post insulator 3 and the line insulator 5 form an acute angle.

[0021] Working principle:

[0022] When using a combined tension tower structure:

[0023] The post insulator 3, line insulator 5, and tower body 1 are the main structures of the tension tower. The operator inserts the conical cylinder 201 into the conical groove 203, and then hangs the tension hardware string 6 on the tower body 1 through the U-shaped hanging ring. The tension hardware string 6 (which can protect the conductor and bear the conductor tension required by the tension section of the line), line insulator 5, connecting flange 4, and post insulator 3 form a triangular structure, so the operator does not need to hold the post insulator 3 with his hand all the time. The post insulator 3 and line insulator 5 form an acute angle.

[0024] Then, the operator inserts bolt 201 into the groove on the right side of the post insulator 3, and screws bolt 201 into the first threaded hole 204 and the second threaded hole 205 in sequence, thereby fixing the post insulator 3 to the tower body 1. This completes the assembly of the post insulator 3 and other components with the tower body 1 (a single tower body 1 located at the top). By using multiple conical cylinders 201 and conical grooves 203, the first threaded hole 204 and the second threaded hole 205 can be quickly aligned, allowing the post insulator 3 to be installed in a shorter time. Both the post insulator 3 and the line insulator 5 provide insulation. The post insulator 3 maintains spacing to ensure a uniform distribution of the electric field and prevents phase-to-phase short circuits or discharge to ground. The line insulator 5 has a certain lightning protection performance, and to a certain extent, it can withstand lightning overvoltage and protect the line and equipment from lightning damage.

[0025] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A combined tension tower structure, comprising a tower body (1) and a tension fitting string (6), wherein the upper left side of the tower body (1) is connected to the tension fitting string (6), characterized in that: An installation structure (2) is provided on the lower left side of the tower body (1). The installation structure (2) includes a conical cylinder (201). The inner walls of the multiple conical cylinders (201) are machined with first threaded holes (204). The first threaded holes (204) and the second threaded holes (205) are threadedly connected to bolts (202). The outer walls of the conical cylinders (201) are fitted with conical grooves (203). The left side of the conical cylinders (201) is fixedly connected to the support insulator (3).

2. The combined dead end / tension structure of claim 1, wherein: The conical grooves (203) are all machined on the left side of the inner wall of the tower body (1), and the right side of the conical grooves (203) is machined with a second threaded hole (205).

3. The combined dead end / tension structure of claim 1, wherein: The left side of the post insulator (3) is fixedly connected to a connecting flange (4).

4. The combined dead end / tension structure of claim 3, wherein: A line insulator (5) is provided above the connecting flange (4).

5. The combined dead end / tension structure of claim 4, wherein: The line insulator (5) is movably connected to the tension fitting string (6) and the connecting flange (4) on both sides by pins.

Images