DE1914169U - ISOLATED PARALLEL-PHASE SCREW CLAMP. - Google Patents

Description

INSULATED PARALLEL - PHASE CLOSURES

The innovation relates to a terminal for temporary connection to draw electrical energy from a high-voltage network or to the same terminal as a ground terminal for temporary connection of ground conductors, the terminal with is equipped with two parallel clamping jaws and is therefore particularly suitable for conductors in the form of rails in high-voltage systems, but also used for other ladder profiles and ropes can be"

The following can be said about the state of the art:

A large group of parallel clamps is in the form of screw clamps designed, one jaw usually forms the body of the clamp at the same time, the other is by means of a screw spindle going through a threaded hole in the body is guided in parallel against the first clamping jaw so as to to hold the ladder firmly, or to move in the opposite direction to solve.

The aforementioned embodiment has the disadvantage that it is rigid and is heavy and takes up a lot of space, so that the installation often makes spatial difficulties. Isolated versions are not provided, although this would significantly increase operational reliability.

Furthermore, the design as a four-bar linkage or as a parallelogram is known; this represents a certain improvement but only allows the jaws to move relative to one another on a diagonal of the four-bar linkage or the parallelogram, the contacts sliding closer so that the

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There is a risk that a shift of the Head enters.

In order to avoid the shortcomings outlined above, the task was to create an isolated parallel grounding or pantograph terminal, which in combination

a) requires little space and is light in weight, and therefore particularly suitable for busbar systems suitable is.

b) can be used at any angle, a property that also makes it possible to use especially increased in busbar systems.

c) is so isolated that practically only the for

Power routing necessary parts made of good conductive Material exist, while for the other clusters the pollution of plastics is provided.

d) Movement of the clamping jaws relative to one another is only permitted perpendicular to the contact or clamping points.

The above objects have now been achieved according to the invention in that the clamp consists of two plastic jaws, one of which one contains a firmly pressed insert made of highly conductive material, while in the other a Kontakteinsatζ is used, which has a sleeve for receiving a plug pin on the rear part. Another improvement is achieved in that the sleeve is cut open on one or both sides and thus a secure pressing of the contact insert made possible with the connector pin. A spring clip is attached to the body that carries the Kontakteinsatζ snaps into place behind an annular shoulder of the connector pin, thus making the pin captive.

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A more detailed description of the clamp now follows:

(as shown in the drawing)

It consists of the two plastic jaws 1 and 2, which are attached to the Clamp mouth at jaw 2 is a rigidly pressed-in part 7 and have a contact insert 6 as a counterpart in the jaw 1, which is made captive by means of the pin 12 is »This contact insert has a sleeve 9» on the opposite side, which is used to hold the connector pin 1-6 serves, whose contact with the contact one at z thereby it is improved that the sleeve 9 located in it

along the line A - ■ A through one or both I landings

is cut open. This connector pin carries a bing 14 and the jaw 1 a spring clip 17 _} which engages behind the bing 14 and thus prevents the connector pin from being lost.

In addition, the structure and the mode of operation of the terminals - type is known, so it should only be mentioned briefly here:

The clamp consists of the spindle 5 to operate the Baking with the toggle 13 as an attack on the operating rod. Next follows the guide nut 8 for the scissor-shaped one Element with the bolt 10, the washer 11 and the tabs 3 and 4 and finally the guide bolt 15, which is essentially the Allows parallel guidance of the jaws. The mechanism is operated by turning the spindle 5 by means of the gag 13.

The following protection claims result from the above statements :

Claims (5)

SCHÜTZAWSPEÜCHE 1, Isolated parallel phase screw terminal for temporary Connection for taking electrical energy from a high-voltage network or to the same terminal as an earth terminal for the temporary connection of earth conductors, whereby the terminal is equipped with two clamping jaws guided in parallel and therefore especially for conductors in the form of rails of high-voltage systems, but also used for other ladder profiles and ropes can be characterized by the fact that the plastic jaws (1) and (2) contact inserts from well Contain conductive material (6) and (7), of which the insert located in the jaw (2) is firmly pressed in, while the contact insert located in the jaw (l) ^ 6) with the sleeve (9) for the power line and the sleeve for receiving the plug— pin (l6) is used. 2. Insulated parallel -.Phasenschraubklemme according to claim 1 characterized characterized in that the sleeve (9) along the line A A is slit. 3 »Insulated parallel phase screw terminal according to claims 1 and 2 dadureh marked that the jaw (l) a Has a spring clip (l?) That holds the connector pin serves. 4 »Insulated parallel phase screw terminal according to claims 1 to 3 dadureh that the connector pin has a retaining ring (l4) behind which the spring clip (17) engages. 5. Isolated parallel - phase screw terminal according to claims 1 to 4 indicated that the contact insert (6) Is attached captive by means of a pin (12).