CN217768866U - Disassembly-free expansion terminal - Google Patents

Abstract

The utility model relates to an exempt from to tear open extension terminal, including terminal insulating casing to and install center set screw and binding post on terminal insulating casing, during the use, center set screw and screw formula binding post's central screw hole threaded connection, with fixed connection terminal insulating casing and screw formula binding post's casing, binding post is connected with screw formula binding post's fastening screw electricity. The shell of the connecting terminal insulating shell and the shell of the screw type wiring terminal are fixed through the central fixing screw, so that the terminal insulating shell and the screw type wiring terminal are relatively static, the wiring terminal is in contact with a fastening screw of the screw type wiring terminal to achieve electric connection, and the purpose of achieving wire access under the condition of disassembling the existing wiring terminal can be avoided.

Description

Disassembly-free expansion terminal

Technical Field

The utility model relates to a technical field is connected to the terminal, concretely relates to exempt from to tear open extension terminal.

Background

The common terminals in the transformer substation are screw type terminals such as phoenix UK5N, UK6N, UDK and UKK. Fig. 1 shows a UK 5N-type screw terminal, which includes a housing 10, a connecting plate 11 is provided in the housing 10, a central threaded hole 110 is provided in the connecting plate 11, terminal blocks 12 are provided on both sides of the connecting plate 11, and fastening screws are connected to the terminal blocks 12.

The protection test needs to remove the wire of terminal wiring position and insert experimental contact pin, inserts the test wire through experimental contact pin access, needs the mark position, screws up the screw, and it is difficult and labouring, probably causes wrong wiring, wire not hard up problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an exempt from to tear open extension terminal to realize the wire under the condition of not dismantling current binding post and insert the purpose.

The technical scheme of the utility model is that:

the utility model provides a exempt from to tear open extension terminal, includes the terminal insulating casing to and install central set screw and binding post on the terminal insulating casing, central set screw with terminal insulating casing threaded connection, binding post includes fixation nut, screw and connects the electric pole, fixation nut with the terminal insulating casing revolute pair is connected, screw nut with terminal insulating casing sliding rail connection, the screw respectively with fixation nut, screw nut threaded connection, connect the electric pole with screw nut fixed connection.

Preferably, still include the push type fastener, screw nut is metal nut, the push type fastener includes button, electrically conductive pressure spring and wire, still be equipped with the wire jack in the terminal insulating casing and set up the groove with the button, the button activity sets up and sets up the inslot at the button, the button includes fixed connection's insulating part and electrically conductive line ball knot, electrically conductive pressure spring both ends butt respectively electrically conductive line ball knot the button sets up the tank bottom in groove, the wire is used for the electricity to be connected screw nut with electrically conductive pressure spring.

Preferably, the screw type connecting terminal is a UK5N type screw connecting terminal, a UK6N type screw connecting terminal or a UDK4 type screw connecting terminal.

The utility model has the advantages that:

1. the shell of the connecting terminal insulating shell and the shell of the screw type connecting terminal are fixed through the central fixing screw, so that the terminal insulating shell and the screw type connecting terminal are relatively static, the connecting terminal is in contact with a fastening screw of the screw type connecting terminal to achieve electric connection, and the purpose of achieving wire access under the condition of disassembling the existing connecting terminal can be avoided.

Drawings

Fig. 1 is a block diagram of a UK5N screw terminal.

Fig. 2 is a structural view of a disassembly-free expansion terminal.

Fig. 3 is a reference diagram of a use state of the non-detachable expansion terminal.

Fig. 4 is a partially enlarged view of fig. 2.

The reference number indicates that 1-UK 5N-type screw terminal, 10-shell, 11-central threaded hole, 12-fastening screw, 2-disassembly-free expansion terminal, 20-terminal insulating shell, 21-central fixing screw, 22-terminal, 221-screw, 222-fixing nut, 223-lead screw nut, 224-electric connecting column, 23-button, 231-insulating part, 232-conductive wire pressing buckle, 24-wire jack, 25-conductive compression spring and 26-wire.

Detailed Description

The present invention is described below in terms of embodiments with reference to the accompanying drawings to assist those skilled in the art in understanding and realizing the invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.

Example 1: a disassembly-free expansion terminal, see fig. 2, includes a terminal insulation case 20, and a central fixing screw 21 and a connection terminal 22 mounted on the terminal insulation case 20. Referring to fig. 1 to 3, in use, the central fixing screw 21 is screwed into the central screw hole 11 of the screw type terminal 1 to fix the terminal insulating housing 20 and the housing 10 of the screw type terminal 1, and the terminal 22 is electrically connected to the fastening screw 12 of the screw type terminal 1.

Referring to fig. 2, in the present embodiment, a center fixing screw 21 is screwed with the terminal insulating case 20.

Referring to fig. 4, in the present embodiment, the connection terminal 22 includes a fixing nut 222, a lead screw nut 223, a screw 221, and an electrical connection post 224, the fixing nut 222 is connected to the rotation pair of the terminal insulation housing 20, the lead screw nut 223 is connected to the terminal insulation housing 20 in a sliding manner, the screw 221 is respectively connected to the fixing nut 222 and the lead screw nut 223 in a threaded manner, and the electrical connection post 224 is fixedly connected to the lead screw nut 223. The screw 221 is made of an insulating material, the fixing nut is preferably made of an insulating material, and the electric pole 224 is made of a conductor material. In use, the screw 221 is rotated, the lead screw nut 223 moves along the guide track formed by the terminal insulating housing 20, and the electric connecting post 224 is driven to extend or retract.

Referring to fig. 4, exempt from to tear open extension terminal still includes the push type fastener, screw nut 223 is metal nut, the push type fastener includes button 23, electrically conductive pressure spring 25 and wire 26, still be equipped with first wire jack 24 and button in the terminal insulating casing 20 and set up the groove, button 23 activity sets up at the button and sets up the inslot, button 23 includes fixed connection's insulating part 231 and electrically conductive line ball and detains 232, electrically conductive line ball detains and is equipped with the second wire jack on 232, electrically conductive pressure spring 25 both ends butt electrically conductive line ball respectively detains 232, the tank bottom that the button set up the groove, and thus, when pressing the button, make first wire jack 24 align with second wire jack, just can insert the wire, when loosening the button, the dislocation of first wire jack 24 of pressure spring roof pressure and second wire jack, realize the purpose that compresses tightly of wire. The lead wires 26 are used to electrically connect the lead screw nut 223 and the conductive pressure spring 25. Therefore, the purpose that the lead in the second lead jack is electrically connected with the electric connection column 224 through the conductive wire pressing buckle 232, the conductive compression spring 25, the lead 26 and the lead screw nut 223 is achieved.

The utility model discloses a exempt from to tear open screw formula binding post of extension terminal adaptation is UK5N type screw binding post, UK6N type screw binding post or UDK4 type screw binding post.

In other embodiments, the central fixing screw 21 may be movably connected to the terminal insulating housing 20, but in this case, it is cumbersome to fix the terminal insulating housing 20 and the housing 10 of the screw type connection terminal 1.

In other embodiments, the wire connecting terminal 22 may be screwed with the terminal insulating case 20.

The present invention has been described in detail with reference to the accompanying drawings and examples. It should be understood that in practice the description of all possible embodiments is not exhaustive and that the inventive concepts are presented herein by way of illustration as much as possible. Without departing from the inventive concept of the present invention and without paying creative labor, technical personnel in the technical field can make or delete combinations, specific parameters to perform experimental changes to the technical features in the above embodiments, or use the prior art in the technical field to perform the specific embodiments of conventional replacement and formation by the disclosed technical means, which all belong to the content hidden in the present invention.

Claims (3)

1. The utility model provides an exempt from to tear open extension terminal, its characterized in that includes the terminal insulation shell to and install central set screw and binding post on the terminal insulation shell, central set screw with terminal insulation shell threaded connection, binding post includes fixation nut, screw and connects the electric post, fixation nut with the terminal insulation shell revolute pair is connected, screw nut with terminal insulation shell sliding rail connection, the screw respectively with fixation nut, screw nut threaded connection, connect the electric post with screw nut fixed connection.

2. The disassembly-free expansion terminal of claim 1, further comprising a pressing type wire clamp, wherein the lead screw nut is a metal nut, the pressing type wire clamp comprises a button, a conductive pressure spring and a wire, the terminal insulation shell is further provided with a wire jack and a button setting groove, the button is movably arranged in the button setting groove, the button comprises an insulation part and a conductive pressure wire buckle which are fixedly connected, two ends of the conductive pressure spring are respectively abutted against the conductive pressure wire buckle and the groove bottom of the button setting groove, and the wire is used for electrically connecting the lead screw nut and the conductive pressure spring.

3. The detachment-free expansion terminal of claim 1, wherein the screw type connection terminal is a UK5N type screw connection terminal, a UK6N type screw connection terminal, or a UDK4 type screw connection terminal.

Images