BG744Y1 - Terminal for extension - Google Patents

Abstract

The terminal is used for splicing of wire- from a central electricity grid for land vehicles and can find an application in urban electric transport. The terminal contains two jaws (1, 2) for pressing a conductor from an electro- network connected at least two dismountable screw (3) to one another. The screws (3) are made of with an opening (4) along the axis thereof, the aperture being adapted for co-operation with a key. Each jaw (1 or 2) has a longitudinal tooth (5) at its lower end, the two opposite- the tooth (5) of the jaws (1, 2) form a channel for the conductor, the longitudinal teeth (5) having a lever (6) at least on one forming surface.

Description

(54) SUPPLY CLAMP

Field of application

This utility model relates to a connection terminal for an aerial central electrical network, for example when driving ground vehicles. The terminal may be most widely used in the city's electricity network, for example, for wiring the network.

BACKGROUND OF THE INVENTION

Electric ground vehicles move along predetermined routes, drawing electricity from overhead contact lines along the routes. The junction terminals are used to maintain and connect the wires and prevent the wires from unplugging from the mains. In practice, the reliability of the network itself, as well as the convenience of servicing it, depend largely on the design of the terminals.

It is known from the BG 35071 junction terminal containing two jaws for clamping the electrical wires, which are connected to the threaded connections. The known terminal also includes more than one bolt, in this case five bolts, for connecting and fastening the two jaws to each other. Each jaw has a longitudinal tooth at its lower end, with the two opposite teeth of the jaws forming a conduit for the conductor. The jaws of the known terminal are hinged by at least one rib with an oval section located on one jaw and a corresponding groove of the other jaw. The jaws of the known terminal are positioned above the longitudinal teeth between the apertures of the screws alternating projections and slots so that the projections of one jaw fit into the slots of the other jaw. In each projection, a retaining screw is mounted perpendicular to the groove. Characteristic of the known terminal is that it is inconvenient for installation and does not provide a good enough clamping of the conductor.

The essence of the utility model

A major problem that is solved with the present utility model is that it reduces the weight of the terminal, making it more reliable, improving service, and achieving universal terminals with respect to left and right suspension positions.

These and other utility model problems are solved with a splicing clamp comprising two jaws for clamping a wiring from the mains, disassembled with at least two threaded connections for connecting and clamping the two jaws to each other. In this case, the threaded connections are filled with screws. The terminal screws according to the present utility model are made with a hole in their axis and the hole is adapted for key operation. In one embodiment, the opening may be cross-sectional in the form of an angle. This avoids the inconvenience of having a screw slot when the threaded connection is tightened. The terminal is lightened, the width of the terminal is reduced, and accidents are avoided, and no protruding parts are avoided. Each jaw has a longitudinal tooth at its lower end, with the two opposite teeth of the jaws forming a conduit for the conductor. The longitudinal teeth of the present terminal are flanged on their two forming surfaces. The knurl provides a more secure grip on the wires, thus avoiding slipping.

In a preferred embodiment of the utility model, the screws have a concealed head. This avoids protruding parts that can cause accidents.

In another embodiment, the angle is hexagonal.

In another embodiment, the openings for the screws of the two jaws are different in appearance, with one jaw threaded and the other jaw smooth.

In another embodiment, the at least one screw opening of one jaw is different from the type of other openings of the same jaw, the corresponding holes of the other jaw being opposite in appearance. In one preferred embodiment, the openings of one jaw alternate in type threaded or smooth, with the corresponding openings of the other jaw being opposite in appearance. In this way, a more even distribution of voltages is achieved by tightening the screws along the terminal.

In one embodiment of the utility model, the terminal has at least one ear for connection to the supporting wires of the web attached to the jaw.

Brief description of the attached figures

Figure 1 shows a side view of the junction terminal according to the utility model;

Figure 2 shows a top view of the terminal of FIG. 1;

Figure 3 shows a section through a screw in AA of FIG. 1;

Figure 4 shows a side view of a jaw from the terminal of FIG. 1;

Figure 5 shows a cross-section through the longitudinal tooth of the jaw of FIG. 4;

Figure 6 shows the terminal according to the utility model with ears.

Description of utility model

The accompanying drawings show exemplary terminals according to the utility model. The examples are for illustrative purposes only and do not specify the scope of the utility model.

Figures 1 to 5 show an exemplary embodiment of a splice terminal. The clamp contains a jaw 1 and a jaw 2 connected to each other by screws 3. The screws 3 in this case have a hidden head, which removes the protruding parts. The screws 3 have a longitudinal opening 4, the cross section of which is angular. In this case, a screw 3 with a hexagonal central hole 4 is shown. It will be appreciated by one of ordinary skill in the art that this opening may be square, octagonal or any other key that can be coupled.

Each jaw 1 or 2 has a longitudinal tooth 5 at its lower end beneath the screw holes, the two opposite teeth of the jaws forming a conduit for the conductor. The longitudinal teeth 5 of the terminal shown are knurled 6 on their two forming surfaces. Thus designed, the knurl 6 ensures a firm grip on the conductor head while avoiding sliding of its body.

In the embodiment shown, the openings for the screws 3 of one jaw 1 or 2 alternate in type thread 7 and smooth 8, with the corresponding openings of the other jaw 2 or 1 being opposite in appearance. This staggered positioning of the screws 3 on both sides of the terminal ensures that the tension of the screws 3 is tightened along the terminal.

Each jaw 1 or 2 of the connecting terminal shown has one oval rib 9 with an oval section located at the top of one end and a channel 10 at its other end also located at the top of the jaw so that the rib 9 of one jaw 1 to enter the groove 10 of the other jaw 2. This provides better alignment of the jaws and enables the jaws to rotate relative to each other around the ribs 9.

The terminal shown in FIG. 6 of the utility model, there is one ear 11 for connection to the carrier wires of the web attached to each of the jaws 1 or 2. It is clear to one skilled in the art that the terminal may have an ear on only one jaw. Such an ear plug can serve as a safety pin.

It will be apparent to those skilled in the art that other modifications and variations of the present utility model are possible in the light of the foregoing disclosure. It is clear that all modifications and variations are within the spirit and scope of the utility model, which is limited and defined only by the appended claims.

Claims

Claims (9)

1. A clamping clamp comprising two jaws (1,2) for clamping a wire from the mains, disassembled with at least two threaded connections to each other, and each jaw (1 or 2) has a longitudinal tooth (5) in its lower an end, the two opposing teeth (5) of the jaws (1,2) forming a conduit for the conductor, characterized in that: - the threaded connections are provided with screws (3); - the screws (3) are made with an aperture (4) along their axis, the aperture being adapted for cooperating with a key; - the longitudinal teeth (5) are knurled (6) on at least one forming surface. The clamping clamp according to claim 1, characterized in that the screws (3) have a hidden head. Connection clamp according to claim 1 or 2, characterized in that the openings (4) are in the cross-section in an angle. The splicing clamp according to claim 3, characterized in that the angle is hexagonal. Connector for clamping according to any one of the preceding claims, characterized in that the openings for the screws (3) of the two jaws (1,2) are different in appearance and that of the one jaw (1) are threaded (7). ) and the other jaw (2) is smooth (8). 6. The snap clamp according to claim 5, characterized in that at least one opening (7 or 8) for screwing one jaw (1) is different from the type of other openings (7 or 8) of the same jaw (5). 1), the corresponding openings (8 or 7) of the other jaw (2) being opposite in appearance. Connector according to claim 6, characterized in that the openings (7 or 8) of one jaw (1) are alternated by threaded (7) or smooth (8), such as the corresponding openings (8 or 7). the other jaw (2) is opposite in appearance. The clamping clamp according to claim 1, characterized in that it has at least one ear (11) for connection to the supporting wires of the web attached to the jaw (1 or 2). The clamping clamp according to claim 1, characterized in that each jaw (1 or 2) has at least one rib (9) with an oval section, the upper part of one end of the jaw (1 or 2) and a groove (1). 10) at the top of the other end of the same jaw (1 or 2) so that the rib (9) of one jaw (1 or 2) falls into the groove (10) of the other jaw (2 or 1). Attachment: 6 figures Publication of the Patent Office of the Republic of Bulgaria 1113 Sofia, 52-B Dr. GM Dimitrov Blvd.