CN204834901U - Novel pile head piece of transformer fastener - Google Patents

Abstract

Novel pile head piece of transformer fastener (b). (B, ) effective tight pile head and the superior novel pile head piece of transformer fastener of electric conductive property of pressing from both sides of ability is provided. The pile head piece includes the flaky body of aluminium matter, and the one end of sheet noumenon is equipped with column circular arc head, and the other end is equipped with hollow cylindrical pile head hole, the broken seam of axial has been seted up in hollow cylindrical pile head hole. U type groove has been seted up at the horizontal middle part of sheet noumenon, and U type groove opening direction is towards column circular arc head. The skin of aluminium matter pile head piece has plated one deck copper layer, but not single aluminium material, has increased the electric conductivity of pile head piece, the pile head piece becomes general C molded lines and presss from both sides the accommodation space that adopts two circular arcs to form the pile head for the screw pile head hole with the pile head adaptation, realize with the zonulae occludens of pile head, and has opened one in the axial in pile head hole and has pointed out seam frankly, increase the elastic deformation ability of pile head piece, the proper motion pressurized fastens when making the pile head piece compress tightly.

Description

New pile head blocks for transformer clamps

technical field

The utility model relates to the field of electric fittings, in particular to a novel pile head block of a transformer wire clip.

Background technique

C-type clamp is a kind of electric power connection fittings, and it is a kind of conductor connection terminal (line joint) for continuous current.

The new pile head blocks of the current transformer clamps are mostly arc-shaped, forming a pile head accommodation space with the curved part of the C-shaped clamp body; or the curved part of the clamp body is semicircular and supported by a supporting pressure block The accommodation space for the pile head is formed. The disadvantage of this structure is that the pile head is not securely clamped, and it is easy to slide and fall off. In addition, most of the current pile head blocks are single aluminum material, and the electrical conductivity is not superior enough.

Utility model content

Aiming at the above problems, the utility model provides a new type of pile head block which can effectively clamp the pile head and has superior electrical conductivity.

The technical scheme of the utility model is: the pile head block includes an aluminum sheet-shaped body, one end of the sheet-shaped body is provided with a columnar arc head, and the other end is provided with a hollow columnar pile head hole, and the hollow columnar pile head hole There are axial cracks.

A U-shaped groove is opened in the lateral middle part of the sheet-like body, and the opening direction of the U-shaped groove faces the cylindrical arc head.

Internal thread is provided in the hollow columnar pile head hole.

The outer surface of the aluminum sheet-shaped body is provided with a copper layer.

A copper layer is provided on the outer surface of the aluminum sheet-shaped body bounded by the center toward the pile head hole.

The beneficial effects of the utility model are: the outer layer of the aluminum pile head block is plated with a layer of copper, instead of a single aluminum material, which increases the conductivity of the pile head block; The accommodation space of the pile head formed by the two circular arcs is the threaded pile head hole adapted to the pile head to realize the close connection with the pile head, and a crack is opened in the axial direction of the pile head hole to increase the elasticity of the pile head block Deformation ability, so that when the pile head block is compressed, it will be compressed and fastened by itself.

Description of drawings

Fig. 1 is the front view of the utility model,

Fig. 2 is the top view of the utility model,

Fig. 3 is the first embodiment of the present utility model,

Fig. 4 is the second kind of embodiment of the present utility model,

Fig. 5 is a structural schematic diagram of a transformer C-type clamp,

Fig. 6 is a top view of the main body of the transformer C-type clamp,

Fig. 7 is a top view of the clamp block of the transformer C-type clamp;

In the figure, 1 is the main body of the clamp, 11 is the installation hole, 2 is the clamping block, 21 is the U-shaped groove 1, 3 is the pile head block, 31 is the pile head hole, 32 is the broken seam, 33 is the U-shaped groove, 34 It is an arc head, and 4 is a bolt, and 41 is a flat washer, and 42 is a spring washer, and 43 is a nut.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figures 1 and 2, the pile head block 3 of the present utility model comprises an aluminum sheet-shaped body, one end of the sheet-shaped body is provided with a columnar arc head 34, and the other end is provided with a hollow columnar pile head hole 31, The hollow columnar pile head hole 31 is provided with an axial slit 32 .

A U-shaped groove 33 is opened in the lateral middle part of the sheet-like body, and the opening direction of the U-shaped groove faces the cylindrical arc head 34 .

The hollow columnar stud hole 31 is provided with an internal thread.

Fig. 3 is the first embodiment of the present utility model, the outer surface of the aluminum sheet-shaped body is provided with a copper layer.

Fig. 4 is a second embodiment of the present utility model, the aluminum sheet-shaped body is provided with a copper layer on the outer surface facing the pile head hole 31 with the center as the boundary.

Fig. 5 is a structural schematic diagram of a transformer C-shaped clamp applied to the utility model, including a clamp main body 1, a clamping block 2 and an aluminum pile head block 3, the clamping block 2 and the pile head block 3 It is connected with the clamp main body 1 by bolts 4. The clamp main body 1 includes a straight part and a curved part 1 and a curved part 2 symmetrically arranged on both sides of the straight part. The middle part of the clamp main body 1 is equipped with a Hole 11 (as shown in Figure 6);

One end of the clamping block 2 is provided with a circular arc clamping groove, and the circular arc clamping groove and the bending part form a cable accommodation space, and the other end is provided with a circular arc socket;

The arc head 34 of the pile head block 3 is adapted to the arc socket, and the outer side of the pile head hole 31 is adapted to the second curved portion.

A U-shaped groove 21 (as shown in FIG. 7 ) is provided in the transverse middle part of the arc socket, and the bolt 4 passes through the mounting hole 11, the U-shaped groove 2 33, the U-shaped groove 21, and the flat pad 41 sequentially. , spring washer 42 and nut 43 are connected to the clamping block 2, pile head block 3 and clamp main body 1, in order to facilitate contact with the flat pad 41, the position where the arc socket of the clamping block 2 is in contact with the flat pad 41 is set to flat.

The inner side of the pile head hole 31 is provided with an internal thread adapted to the transformer pile head, which facilitates the connection with the pile head and makes the connection more firm.

The hollow column-shaped pile head hole 31 is provided with an axial slit 32 to increase the elastic deformation of the pile head block and make the fastening more reliable.

The inner side of the bending part 1 and the bending part 2 of the clamp main body 1 is provided with an anti-slip strip, which improves the bite force of the clamping block 2 on the cable and the clamp main body 1 on the pile head block, and improves the stability of the clamping.

Claims (5)

1. the novel pile crown block of transformer wire clamp, pile crown block comprises the body of aluminium matter sheet, and one end of sheet noumenon is provided with column circular arc head, and the other end is provided with the pile crown hole of open column shape, it is characterized in that, the pile crown hole of described open column shape offers axial tear.

2. the novel pile crown block of transformer wire clamp according to claim 1, it is characterized in that, the lateral middle of described sheet noumenon offers U-type groove, and U-type groove opening direction is towards column circular arc head.

3. the novel pile crown block of transformer wire clamp according to claim 1, is characterized in that, is provided with internal thread in the pile crown hole of described open column shape.

4. the novel pile crown block of transformer wire clamp according to claim 1, is characterized in that, the body outer surface of described aluminium matter sheet is provided with layers of copper.

5. the novel pile crown block of transformer wire clamp according to claim 1, is characterized in that, to take center as boundary be provided with layers of copper towards the outer surface in direction, pile crown hole for the body of described aluminium matter sheet.