CN205509027U - Take plug -in fastener of screw expansion work ability - Google Patents

Abstract

The utility model discloses a plug-in wire clamp with screw expansion function, which comprises a base, a plug and screws, the base made of metal is fixedly connected with the terminals of electrical equipment, the base is hollowly provided with a mounting hole, and the plug is used Insert into the installation hole; the plug made of metal is hollowly provided with a threaded hole, the diameter of the top of the threaded hole is larger than the diameter of the bottom, and the screw is inserted into the threaded hole when used. The plug-in cable clamp has a simple structure and is easy to operate. The user can insert the plug into the base and tighten the screws to make the connection stable, which greatly improves the stability of the plug-in cable clamp.

Description

A plug-in clamp with screw expansion function

technical field

The utility model relates to the field of mechanical engineering, in particular to a plug-in clamp with screw expansion function.

Background technique

The wire clip is a commonly used connection tool in the power system. It is used to connect the busbar down-conductor with electrical equipment (such as transformers, circuit breakers, transformers, isolating switches, wall bushings, etc.), among which the plug-in type wire clip is The most commonly used type of clamp. The existing plug-in clamps are divided into bases and plugs, which are generally connected by shrapnel to facilitate temporary connection to the circuit. However, this shrapnel-type wire clamp has the following problems in the use of circuit conduction and connection: (1 ) is unstable and unreliable when connected to the circuit for a long time, and unintentional contact may cause the clip to fall off, resulting in an open circuit or poor contact, which affects the conduction of the circuit; (2) The plug-in clip shrapnel may lose its elasticity after long-term operation , It is easy to affect the circuit connection and cause an open circuit.

Utility model content

In view of the above problems, the utility model provides a plug-in clamp with screw expansion function.

The purpose of this utility model adopts following technical scheme to realize:

A plug-in cable clamp with screw expansion function, which is characterized in that it includes a base, a plug and screws, the base made of metal is fixedly connected to the terminal of the electrical equipment, the base is hollowed with a mounting hole, and the plug is used When inserted into the mounting hole; the plug made of metal is hollowly provided with a threaded hole, the diameter of the top of the threaded hole is larger than the diameter of the bottom, and the screw is inserted into the threaded hole when used.

Preferably, both the base and the plug are in the shape of a hollow cylinder.

Preferably, the cross-sectional diameter of the screw is equal to the top diameter of the threaded hole.

Preferably, the plug is connected to a bus bar or a cable from a power supply.

The beneficial effects of the utility model are: the plug-in type wire clip overcomes the shortcoming that the shrapnel type wire clip is prone to loose connection, has a simple structure and is easy to operate. The user can insert the plug into the base and tighten the screw to connect firmly, greatly Improved stability of plug-in clamps.

Description of drawings

Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model, for those of ordinary skill in the art, under the premise of not paying creative work, also can obtain according to following accompanying drawing Additional drawings.

Fig. 1 is the structural representation of base;

Figure 2 is a schematic diagram of the structure of the plug and screws.

Reference signs: base-1; plug-2; screw-3; mounting hole-4; terminal-5; threaded hole-6.

detailed description

The utility model is further described in conjunction with the following examples.

As shown in Figure 1-2, a plug-in clamp with screw expansion function includes a base 1, a plug 2 and a screw 3, and the base 1 made of metal is fixedly connected to the terminal 5 of the electrical equipment. The base 1 is hollowly provided with a mounting hole 4, and the plug 2 is inserted into the mounting hole 4 when used, and the plug 2 is connected to the bus bar or the cable drawn from the power supply (the connection method between the base 1 and the terminal 5 can be used, or other connection methods can be used. ). The plug 2 made of metal is hollowly provided with a threaded hole 6, the top diameter of the threaded hole 6 is larger than the bottom diameter thereof, and the section diameter of the screw 3 (the screw body of the screw 3 is a cylinder) is equal to the top diameter of the threaded hole 6, the screw 3 Insert it into the threaded hole 6 when in use. Both the base 1 and the plug 2 are in the shape of a hollow cylinder.

When using this plug-in clamp, insert the plug 2 into the installation hole 4, and then screw in the screw 3 from the top of the threaded hole 6. Since the cross-section of the threaded hole 6 tapers from top to bottom, the screw 3 is screwed in. During the process, the plug 2 is subjected to an outward force, so that the outer surface of the plug 2 is in close contact with the inner surface of the base 1, thereby playing a role of a stable connection.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (4)

1. band screw expands a plug-in wire clamp for function, it is characterized in that, including base, plug and screw, is made of metal Base affixed with the terminals of electric equipment, described base hollow is provided with installing hole, and plug inserts described installing hole when using In；The described plug hollow being made of metal is provided with screwed hole, and the top diameter of described screwed hole is more than its base diameter, institute State when screw uses and insert in screwed hole.

A kind of band screw the most according to claim 1 expands the plug-in wire clamp of function, it is characterized in that, described base is with slotting Head all cylindrical shapes in hollow.

A kind of band screw the most according to claim 2 expands the plug-in wire clamp of function, it is characterized in that, cutting of described screw Face diameter is equal to the top diameter of described screwed hole.

A kind of band screw the most according to claim 1 expands the plug-in wire clamp of function, it is characterized in that, described plug is with female The cable that line or power supply are drawn is connected.