Power transmission single-column terminal tower

Abstract

The utility model provides a power transmission single-column terminal tower, which belongs to the technical field of electric power facilities and comprises a tower body, a cable switching platform, an outdoor cable terminal head, a cable lead hanging frame, an assembly seat, a mounting seat, a cross arm, a shaft seat, a bracket, an insulator chain, a bolt and a nut. The cross arm can be rotationally adjusted along the periphery of the assembly base, the angle of the cross arm can be adjusted on a terminal tower, when a power transmission line deflects in the hanging direction, the cross arm can rotate towards the pre-deflection angle identical with the deflection direction of the power transmission line, and the cross arm can be adjusted in the pre-deflection angle. The operation possibility between the wire and the deflection direction of the wire is increased, the safety of a wire hanging point is improved, and the cable can be always in a pushed state by adjusting the position of the bracket on the cross arm to move in the direction close to or away from the cable, so that the connection stability of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power facilities, and particularly relates to a single-column transmission terminal tower. Background Art

[0002] A terminal tower is a pole tower used to convert an overhead line into a cable laying. It is a classification of the pole tower of an overhead transmission line and is generally used at the end of the overhead line, so it is called a terminal tower. The cable terminal tower is also only stressed on the overhead line side and not on the cable side, so it is called a cable terminal tower;

[0003] Since the terminal tower includes multiple conductor crossarms, and at least one conductor hanging point is provided under each conductor crossarm, the position of the existing terminal tower crossarm is fixed. When the hanging direction of the transmission line deflects, the conductor fittings on the crossarm collide with the facilities in its deflection direction, affecting the safety of the conductor hanging point;

[0004] Insulators for guiding the cable to the cable terminal head are installed on the crossarm. Actually, in order to meet the need of the thermal expansion and contraction of the cable, the cable between the cable terminal head and the insulator needs to be in a slack state. The existing insulator string is horizontally installed on the crossarm with a fixed position, and the slack cable is easily blown back and forth by the wind, affecting the connection stability with the cable terminal head;

[0005] Therefore, the present application provides a new single-column transmission terminal tower to meet the requirements. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the problems existing in the above background art, and to provide a single-column transmission terminal tower.

[0007] To solve the above technical problems, the utility model provides the following technical solutions:

[0008] A single-column transmission terminal tower includes: a tower body, a cable transfer platform, an outdoor cable terminal head, a cable lead hanging bracket, an assembly seat, a mounting seat, a crossarm, a shaft seat, a bracket, an insulator string, bolts and nuts. The cable transfer platform is installed at the lower end of the tower body, several outdoor cable terminal heads are installed at the upper end of the cable transfer platform, several cable lead hanging brackets are installed at the lower end of the cable transfer platform, several assembly seats are installed above the cable transfer platform on the tower body, a mounting seat is installed at the outer end of the assembly seat, a crossarm is installed inside the mounting seat, shaft seats are installed at the upper and lower ends inside the crossarm, a bracket is installed at the upper end inside the crossarm, an insulator string is installed at the lower end inside the bracket, a bolt is installed at the upper end inside the bracket, and a nut is installed at the outer end of the bolt.

[0009] Preferably, there are two sets of the mounting seats, and the two sets of mounting seats are respectively located at the upper and lower ends of the assembly seat.

[0010] Preferably, the assembly seat is cylindrical, the mounting seat is annular, the mounting seat and the assembly seat are in threaded connection, and the diameter of the mounting seat is larger than that of the assembly seat.

[0011] Preferably, an annular groove is arranged inside the mounting seat, and the shaft seat of the cross arm is installed in the groove of the mounting seat.

[0012] Preferably, the cross arm is assembled at the periphery of the assembly seat, and the cross arm is movably connected to the mounting seat through the shaft seat.

[0013] Preferably, the inside of the cross arm is hollowed out, a long strip-shaped groove is horizontally arranged at the upper end of the cross arm, and the bracket vertically penetrates downward through the cross arm and extends to the inside of the cross arm.

[0014] Preferably, the bracket is in a "U" shape, and the bracket is installed on the cross arm through bolts.

[0015] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0016] 1. Since the cross arm can be rotated and adjusted along the periphery of the assembly seat, the angle of the cross arm can be adjusted on the terminal tower. When the transmission line with a deflected hanging direction is encountered, it can be rotated to a pre-deviation angle in the same direction as the deflection direction of the transmission line, increasing the operation possibility between the conductor and its deflection direction and improving the safety of the conductor hanging point.

[0017] 2. By arranging the bracket to be able to move horizontally along the cross arm, the insulator string on the bracket and the connected line can pass through the cross arm for adjustment. In order to adapt to the length of the slack cable, the position of the bracket on the cross arm can be adjusted to move closer to or away from the cable, so that the cable can always be in a tightened state, thereby increasing the connection stability of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the specific connection structure between the assembly seat and the cross arm of the present utility model;

[0021] Figure 3Schematic diagram of the specific structure of the assembly seat and the mounting seat of the present utility model;

[0022] Figure 4 Schematic diagram of the specific connection structure of the bracket and the insulator string of the present utility model.

[0023] [Reference numerals]

[0024] 1 - Tower body; 2 - Cable transfer platform; 3 - Outdoor cable terminal head; 4 - Cable lead hanging bracket; 5 - Assembly seat; 6 - Mounting seat; 7 - Cross arm; 8 - Axle seat; 9 - Bracket; 10 - Insulator string; 11 - Bolt; 12 - Nut.

[0025] As shown in the figure, in order to clearly show the structure of the embodiments of the present utility model, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present utility model to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications made are still within the scope of the appended claims. Detailed implementation manners

[0026] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, an embodiment of the present utility model provides a single-column transmission terminal tower, including: a tower body 1, a cable transfer platform 2, an outdoor cable terminal head 3, a cable lead hanging bracket 4, an assembly seat 5, a mounting seat 6, a cross arm 7, an axle seat 8, a bracket 9, an insulator string 10, a bolt 11 and a nut 12. A cable transfer platform 2 is installed at the lower end of the tower body 1, several outdoor cable terminal heads 3 are installed at the upper end of the cable transfer platform 2, several cable lead hanging brackets 4 are installed at the lower end of the cable transfer platform 2, several assembly seats 5 are installed above the cable transfer platform 2 on the tower body 1, a mounting seat 6 is installed at the outer end of the assembly seat 5, a cross arm 7 is installed inside the mounting seat 6, axle seats 8 are installed at the upper and lower ends inside the cross arm 7, a bracket 9 is installed at the upper end inside the cross arm 7, an insulator string 10 is installed at the lower end inside the bracket 9, a bolt 11 is installed at the upper end inside the bracket 9, and a nut 12 is installed at the outer end of the bolt 11.

[0027] In this embodiment, there are two sets of mounting seats 6, and the two sets of mounting seats 6 are respectively located at the upper and lower ends of the assembly seat 5.

[0028] In this embodiment, the assembly seat 5 is in a cylindrical shape, the mounting seat 6 is in an annular shape, the mounting seat 6 is threadedly connected to the assembly seat 5, and the diameter of the mounting seat 6 is larger than that of the assembly seat 5.

[0029] In this embodiment, an annular groove is provided inside the mounting base 6, and the shaft seat 8 of the cross arm 7 is installed in the groove of the mounting base 6. The annular groove surrounds the outer end of the assembly base 5, providing an annular adjustment range for the cross arm 7 through the shaft seat 8.

[0030] In this embodiment, the cross arm 7 is assembled at the periphery of the assembly base 5, and the cross arm 7 is movably connected to the mounting base 6 through the shaft seat 8. The cross arm 7 can rotate in the inner groove of the mounting base 6 through the shaft seat 8.

[0031] In this embodiment, the inside of the cross arm 7 is hollowed out, and a long strip-shaped groove is horizontally provided at the upper end of the cross arm 7. The bracket 9 extends vertically downward through the cross arm 7 to the inside of the cross arm 7. The bracket 9 can move horizontally along the cross arm 7, and the insulator string 10 on the bracket 9 and the line connected thereto can pass through the cross arm 7 for adjustment.

[0032] In this embodiment, the bracket 9 is in a "U" shape, and the bracket 9 is installed on the cross arm 7 through bolts 11 and nuts 12, so that the mounting guide insulator string 10 on the bracket 9 can be exposed at the outer end.

Claims

1. A single-column transmission terminal tower, characterized in that, Including: Tower body (1), cable transfer platform (2), outdoor cable terminal head (3), cable lead hanging bracket (4), assembly seat (5), mounting seat (6), cross arm (7), shaft seat (8), bracket (9), insulator string (10), bolt (11) and nut (12). A cable transfer platform (2) is installed at the lower end of the tower body (1). A plurality of outdoor cable terminal heads (3) are installed at the upper end of the cable transfer platform (2). A plurality of cable lead hanging brackets (4) are installed at the lower end of the cable transfer platform (2). A plurality of assembly seats (5) are installed above the cable transfer platform (2) on the tower body (1). A mounting seat (6) is installed at the outer end of the assembly seat (5). A cross arm (7) is installed inside the mounting seat (6). Shaft seats (8) are installed at the upper and lower ends inside the cross arm (7). A bracket (9) is installed at the upper end inside the cross arm (7). An insulator string (10) is installed at the lower end inside the bracket (9). A bolt (11) is installed at the upper end inside the bracket (9). A nut (12) is installed at the outer end of the bolt (11).

2. The transmission single-column terminal tower according to claim 1, characterized in that: There are two sets of the mounting seats (6), and the two sets of mounting seats (6) are respectively located at the upper and lower ends of the assembly seat (5).

3. The transmission single-column terminal tower according to claim 1, characterized in that: The assembly seat (5) is cylindrical, the mounting seat (6) is annular, the mounting seat (6) is threadedly connected with the assembly seat (5), and the diameter of the mounting seat (6) is larger than that of the assembly seat (5).

4. The transmission single-column terminal tower according to claim 1, characterized in that: An annular groove is provided inside the mounting seat (6), and the shaft seat (8) of the cross arm (7) is installed in the groove of the mounting seat (6).

5. The transmission single-column terminal tower according to claim 1, wherein: The cross arm (7) is assembled at the periphery of the assembly seat (5), and the cross arm (7) is movably connected with the mounting seat (6) through the shaft seat (8).

6. The transmission single-column terminal tower according to claim 1, wherein: The inside of the cross arm (7) is hollowed out, a long strip-shaped groove is horizontally provided at the upper end of the cross arm (7), and the bracket (9) extends vertically downward through the cross arm (7) to the inside of the cross arm (7).

7. The transmission single-column terminal tower according to claim 1, wherein: The bracket (9) is in a "U" shape, and the bracket (9) is installed on the cross arm (7) through a bolt (11) and a nut (12).

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