CN203733958U - Wire clamp for power transformation equipment - Google Patents

Abstract

The utility model relates to a convenient and reliable wire clip for power transformation equipment, which comprises a main pipe and a secondary pipe. There is an annular deformation groove on the top, and the outer wall of the main pipe cone at the lower part of the deformation groove is provided with external threads, and four expansion joints are symmetrically opened on the outer wall of the main pipe cone along the axial direction; The cone cavity of the auxiliary pipe, the inner cavity wall at the bottom of the auxiliary pipe is provided with internal threads; the bottom end of the main pipe is connected to the connecting plate of the main pipe, and there are bolt holes on the connecting plate of the main pipe. The utility model has the advantages of simple structure, portability, easy implementation, convenient connection and replacement, reliable use and strong versatility, and can be applied to busbar down leads of different specifications and electrical equipment terminals of different angles.

Description

A wire clip for power transformation equipment

technical field

The utility model relates to a wire clip for power transformation equipment, in particular to the connection between a bus down-lead and an outlet terminal of an electrical equipment.

Background technique

At present, the outlet terminal connection methods used for substation bus down conductors and electrical equipment, such as transformers, short circuit breakers, transformers, isolating switches, wall bushings, etc., are mainly explosive clamps, hydraulic clamps and bolt-type clamps. wait. With the advancement of technology, explosive clamps and bolt clamps are gradually being replaced by hydraulic clamps. Whether it is an explosive clamp or a hydraulic clamp, there are defects such as difficult construction, many safety hazards, non-reusability, and the damage of the clamp must be replaced together with the busbar down-conductor.

Contents of the invention

The technical problem to be solved by the utility model is to provide a convenient and reliable wire clamp for power transformation equipment.

For solving above technical problem, the technical scheme that the utility model adopts is:

A wire clamp for power transformation equipment, including a main pipe and an auxiliary pipe. The main pipe includes a main pipe cone, and a through hole is opened in the inside of the main pipe cone along the axial direction. There are external threads on the outer wall of the main pipe cone, and four expansion joints are arranged symmetrically along the axial direction on the outer wall of the main pipe cone;

A secondary pipe cone cavity corresponding to the main pipe cone is formed inside the secondary pipe in the axial direction, and an internal thread is provided on the inner cavity wall at the bottom of the secondary pipe;

The bottom end of the main pipe is connected with the main pipe connecting plate, and the main pipe connecting plate is provided with bolt holes.

When in use, first pass the auxiliary pipe through the bus down conductor, then pass the main pipe through the bus down conductor to the bottom, and then connect the bus down conductor, the main pipe and the auxiliary pipe tightly through the external thread of the main pipe and the internal thread of the auxiliary pipe. connected together. Deformation grooves and expansion joints are used to tighten the busbar down conductor and release the deformation stress during the tightening process of the external thread of the main pipe and the internal thread of the auxiliary pipe. The connecting plate of the main pipe is bolted together with the terminal of the electrical equipment through the bolt hole.

The utility model has the advantages of simple structure, portability, easy implementation, convenient connection and replacement, reliable use and strong versatility, and can be applied to busbar down leads of different specifications and electrical equipment terminals of different angles.

Description of drawings

Figure 1 is a schematic diagram of the structure after the main pipe is connected to the auxiliary pipe.

Figure 2 is a schematic diagram of the structure of the supervisor.

Figure 3 is a side view of the main tube.

Figure 4 is a top view of the main tube.

Fig. 5 is a schematic diagram of the structure of the auxiliary pipe.

In the figure, 1-main pipe, 2-secondary pipe, 3-main pipe cone, 4-deformation groove, 5-external thread, 6-expansion joint, 7-secondary pipe cone cavity, 8-internal thread, 9-main pipe connecting plate , 10-bolt holes, 11-bus downleads, 12-hexagonal head bolts.

Detailed ways

In order to enable those skilled in the art to better understand the utility model, the utility model will be further clearly and completely described below in conjunction with the accompanying drawings.

As shown in FIG. 1 , the utility model provides a clamp for power transformation equipment, which includes a main pipe 1 and an auxiliary pipe 2 .

As shown in Figures 2, 3 and 4, the main pipe 1 includes a main pipe cone 3, the upper part of the main pipe cone 3 is a 2° cone, and the lower part is a section of cylinder. A through hole is opened in the inside of the main pipe cone 3 along the axial direction, and the busbar down conductor 11 passes through the through hole. An annular deformation groove 4 is provided on the outer wall of the lower part of the main pipe cone 3, and an external thread 5 is provided on the outer wall of the main pipe cone 3 cylinder at the lower part of the deformation groove 4, and four expansion joints are arranged symmetrically along the axial direction on the outer wall of the main pipe cone 3 6 (as shown in Figure 4); the function of the deformation groove 4 and the expansion joint 6 is to tighten the busbar down conductor and release the deformation stress during the tightening process during the tightening process of the external thread of the main pipe and the internal thread of the auxiliary pipe.

As shown in FIG. 5 , a secondary pipe cone cavity 7 corresponding to the main pipe cone 3 is formed in the axial direction inside the secondary pipe 2 , and an internal thread 8 is provided on the inner cavity wall at the bottom of the secondary pipe. The secondary pipe 2 is sleeved on the outside of the main pipe 1, and is connected together by the external thread 5 of the main pipe and the internal thread 8 of the secondary pipe. A hexagon head bolt 12 is installed on the top of the auxiliary pipe 2 .

As shown in FIGS. 2 and 3 , the bottom end of the main pipe 1 is connected to a main pipe connecting plate 9 , and a bolt hole 10 is opened on the main pipe connecting plate 9 .

According to different installation methods and structural forms, the equipment clamps can be made into 0°, 45°, 30°, 90° and other specifications according to the different angles formed between the lead wire and the electrical equipment terminal.

The protection scope of the utility model is not limited to the above specific embodiments. For those skilled in the art, the utility model can have multiple deformations and changes, and any modifications and improvements made within the concept and principles of the utility model and equivalent replacements should be included within the protection scope of the present utility model.

Claims (1)

1. a converting equipment wire clamp, it is characterized in that: comprise supervisor (1) and looped pipeline (2), described supervisor (1) comprises supervisor's cone (3), supervisor cone (3) inside has through hole vertically, on the outer wall of supervisor cone (3) bottom, offer annular distortion groove (4), on supervisor's cone (3) outer wall of distortion groove (4) bottom, offer external screw thread (5), on supervisor's cone (3) outer wall, offer symmetrically vertically 4 expansion joints (6);

Described looped pipeline (2) inside forms a looped pipeline cone cavity (7) corresponding with supervisor's cone (3) vertically, and looped pipeline bottom internal chamber wall is provided with internal thread (8);

Supervisor (1) bottom connects supervisor's connecting plate (9), on supervisor's connecting plate (9), has bolt hole (10).