Wiring structure of thread clamping type terminal

Abstract

The utility model discloses a wiring structure of a thread clamping type terminal, which belongs to the field of switch socket wiring terminals, and comprises a wire pressing sheet, a screw and a terminal frame, the wire pressing sheet comprises an end part and a tail part which are connected, the tail part is inserted into the terminal frame, one surface of the tail part is provided with a transverse bulge, and the transverse bulge is connected with the screw. The two sides of the tail portion are provided with side position protrusions, a wire is inserted into the terminal frame, a screw is connected to the terminal frame in a screwed mode and inserted into the terminal frame, the wire is located on one side of the tail portion, and the screw is located on the other side of the tail portion. The wire pressing sheet is provided with the transverse projection with the arc-shaped surface, so that the wire can be effectively pressed and prevented from falling off, and the wire is prevented from being damaged. The two ends of the transverse protrusion are chamfered, the transverse protrusion can be better matched with the arc-shaped end face to clamp the wire, the wire clamp is suitable for clamping wires with different diameters, two or more wires with different diameters can be clamped at the same time without falling off, and the wire clamp is simple and reliable in structure, low in cost and convenient for industrial batch production.

Description

Technical Field

[0001] The utility model relates to a wiring terminal of a switch socket, in particular to a wiring structure of a threaded clamping terminal. Background Art

[0002] The terminal block provides a reliable connection point for transmitting current from one circuit to another, and usually includes a terminal frame, a wire pressing piece, and a screw. The terminal frame is used to place the terminal of the wire. The screw is screwed into the frame from a screw hole on one surface of the terminal frame, causing the terminal frame to move. The wire pressing piece is pressed by the top of the screw, thereby locking the wire.

[0003] The existing terminal structure is usually unable to clamp multiple wires of different diameters at the same time. In order to stably clamp wires of different diameters, a guide end can be set in the terminal frame to provide support for the guide of the smaller diameter, but it is easy for the wire to slip out of the two sides of the wire pressing piece, and it will also cause the wiring space in the terminal frame to become smaller, and more wires cannot be connected at the same time. In addition, the wire pressing piece is a flat structure, and the wire is easy to slip out.

[0004] Therefore, the utility model provides a wiring structure of a threaded clamping terminal to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wiring structure of a threaded clamping terminal, comprising:

[0007] A terminal frame, the terminal frame comprising two side surfaces, a fastening end surface connected to one end of the two side surfaces, and an arc-shaped end surface connected to the other end of the two side surfaces;

[0008] A wire pressing piece, the wire pressing piece comprises a connected end and a tail, the tail is inserted into the terminal frame, one side of the tail is provided with a transverse protrusion, the other side is provided with a transverse groove corresponding to the position of the transverse protrusion, and both sides of the tail are provided with lateral protrusions;

[0009] A screw is threaded onto the fastening end surface and inserted into the terminal frame.

[0010] A further solution: the transverse raised surface is arc-shaped.

[0011] A further solution is that the side protrusion is in the shape of a frustum, the bottom surface with a larger area is connected to the side surface of the tail, and the top surface with a smaller area is in contact with the inner wall surface of the terminal frame.

[0012] A further solution is that both ends of the transverse protrusion are chamfered.

[0013] In a further embodiment, the arc-shaped end surface protrudes outward from the terminal frame.

[0014] A further solution is that the end portion is arranged perpendicularly to the tail portion.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The wiring space is increased, and multiple wires with diameters matching the current can be connected at the same time. The structure is simple and reliable, the cost is low, and it is easy to industrialize and mass produce.

[0017] 2. The horizontal protrusions on the curved surface of the wire pressing piece are in contact with the wire, so that the wire can be effectively pressed between the wire pressing piece and the curved end surface to prevent it from slipping out and avoid damaging the wire. The chamfers at both ends of the horizontal protrusions can better cooperate with the curved end surface to clamp the wire. It is suitable for clamping wires of different diameters, and can also clamp two or more wires of different diameters at the same time to prevent them from slipping out.

[0018] 3. The side protrusions can prevent the wire from slipping out of the gap between the side of the crimping piece and the terminal frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the wire pressing piece (I);

[0022] Figure 3 It is the structural schematic diagram of the wire pressing piece (II);

[0023] Figure 4 This is a schematic diagram of the structure of the terminal frame.

[0024] In the figure: 1-conductor; 2-wire pressing piece; 21-end; 22-tail; 221-lateral protrusion; 222-lateral protrusion; 223-lateral groove; 3-screw; 4-terminal frame; 41-fastening end face; 42-arc end face; 43-side face. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 In the embodiment of the utility model, a wiring structure of a threaded clamping terminal includes a wire pressing piece 2, a screw 3, and a terminal frame 4. The wire pressing piece 2 is inserted into the terminal frame 4, and the wire 1 is inserted into the terminal frame 4. The screw 3 is screwed on the terminal frame 4 and inserted into the terminal frame 4, and the screw 3 is perpendicular to the wire 1. The wire 1 is located on one side of the wire pressing piece 2, and the screw 3 is located on the other side of the wire pressing piece 2.

[0028] Specifically, see Figure 2 , Figure 3 The wire pressing piece 2 includes a connected end portion 21 and a tail portion 22, and the end portion 21 and the tail portion 22 are not in the same plane and can be arranged vertically. The tail portion 22 is inserted into the terminal frame 4, and the end portion 21 is located outside the terminal frame 4. A transverse protrusion 221 is provided on one side of the tail portion 22, and a transverse groove 223 is provided on the other side corresponding to the position of the transverse protrusion 221, and side protrusions 222 are provided on both sides of the tail portion 22. The surface of the transverse protrusion 221 is arc-shaped, which will not damage the wire 1, and the two ends of the transverse protrusion 221 are chamfered, which can better provide a clamping effect on the wire 1. The side protrusion 222 is in the shape of a cone, and the bottom surface with a larger area is connected to the side of the tail portion 22, and the top surface with a smaller area is in contact with the inner wall surface of the terminal frame 4.

[0029] Specifically, see Figure 4 The terminal frame 4 includes two side surfaces 43, a fastening end surface 41 connected to one end of the two side surfaces 43, and an arcuate end surface 42 connected to the other end of the two side surfaces 43, and the arcuate end surface 42 protrudes outward from the terminal frame 4. The screw 3 is screwed on the fastening end surface 41 and inserted into the terminal frame 4.

[0030] The tail 22 is inserted into the terminal frame 4, the transverse protrusion 221 faces the arc-shaped end face 42, the transverse groove 223 faces the fastening end face 41, and the side protrusion 222 contacts the side face 43. The wire 1 is inserted into the terminal frame 4 and is located between the tail 22 and the arc-shaped end face 42. The screw 3 is screwed on the fastening end face 41 and inserted into the terminal frame 4. The screw 3 is turned to move the terminal frame 4 toward the side of the wire pressing piece 2, so that the wire 1 contacts the wire pressing piece 2, and the wire 1 is clamped between the arc-shaped end face 42 and the wire pressing piece 2. The transverse protrusion 221 can effectively press the wire 1 to prevent it from falling out, and because the surface of the transverse protrusion 221 is a circular arc surface, it will not damage the wire. At this time, the end face of the screw 3 is in contact with the tail 22, and the tail 22 is provided with a transverse groove 223, which can disperse the top pressure of the screw 3 to avoid stress concentration on the transverse protrusion 221 and damage to the wire 1. The chamfers at both ends of the transverse protrusion 221 can better match the arc-shaped end surface 42, and are suitable for clamping wires 1 of different diameters, and can also simultaneously clamp two or more wires 1 of different diameters to prevent them from slipping out. The side protrusion 222 is set in a frustum shape, so that the wire will not slip out of the gap between the terminal 4 and the wire pressing piece 2.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A wiring structure of a screw clamping terminal, characterized in that: include: A terminal frame, the terminal frame comprising two side surfaces, a fastening end surface connected to one end of the two side surfaces, and an arc-shaped end surface connected to the other end of the two side surfaces; A wire pressing piece, the wire pressing piece comprises a connected end and a tail, the tail is inserted into the terminal frame, one side of the tail is provided with a transverse protrusion, the other side is provided with a transverse groove corresponding to the position of the transverse protrusion, and both sides of the tail are provided with lateral protrusions; A screw is threaded onto the fastening end surface and inserted into the terminal frame.

2. A wiring structure of a screw clamping terminal according to claim 1, characterized in that: The transverse convex surface is arc-shaped.

3. A wiring structure of a screw clamping terminal according to claim 1, characterized in that: The side protrusion is in the shape of a frustum, a bottom surface with a larger area is connected to the side surface of the tail, and a top surface with a smaller area is in contact with the inner wall surface of the terminal frame.

4. A wiring structure of a screw clamping terminal according to claim 1, characterized in that: Both ends of the transverse protrusion are chamfered.

5. The wiring structure of a screw clamping terminal according to claim 1, characterized in that: The arc-shaped end surface protrudes outward from the terminal frame.

6. A wiring structure of a screw clamping terminal according to claim 1, characterized in that: The end portion is arranged perpendicularly to the tail portion.

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