A secure connection terminal

Abstract

The utility model discloses a kind of wiring terminal of firm connection, including wiring frame, and screw is connected on wiring frame, the inside of wiring frame is slidably installed with pressure frame, the driving column of screw thread connection is rotatably installed on wiring frame with pressure frame, the top of driving column is equipped with disc, square slot is passed through and is arranged in the inside of driving column and disc, the bottom of screw is equipped with the square block of sliding connection with square slot, the utility model is realized to the two-way clamping action of wire by the wiring frame, driving column, square block, pressure frame and screw being set, wire is clamped from two directions, to significantly improve the firmness and reliability of wire connection.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, specifically to a terminal block with a secure connection. Background Technology

[0002] Terminal blocks are a common accessory in electrical connections. They are mainly used to connect, disconnect, or transfer electrical circuits, and serve to fix wires and conduct current. They achieve connection by tightening wires with screws. Compared with direct welding or twisting, loosening the screws can disconnect the circuit, which is convenient for equipment debugging and maintenance.

[0003] Existing terminal blocks mostly use screws to tighten the wires, clamping the wires only from one direction. This results in insufficient fixing force and uneven stress, which can easily cause the wires to loosen during long-term use, affecting the stability and reliability of the electrical connection. Utility Model Content

[0004] The purpose of this invention is to provide a securely connected terminal block to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a securely connected terminal block, including a terminal frame and a screw threaded onto the terminal frame. A pressure frame is slidably installed inside the terminal frame, and a drive column threaded onto the pressure frame is rotatably installed on the terminal frame. A disc is provided at the top of the drive column, and a square groove is formed through the drive column and the disc. A square block is provided at the bottom of the screw and slidably connected to the square groove.

[0006] As a preferred embodiment of this utility model, the top of the pressure frame is provided with a first threaded hole, and the outer side of the drive column is provided with an external thread that mates with the first threaded hole.

[0007] As a preferred embodiment of this utility model, the top of the wiring frame is provided with a second threaded hole and a through hole from top to bottom, the drive column is rotatably installed in the through hole, and the screw is threadedly connected to the second threaded hole.

[0008] As a preferred embodiment of this utility model, the wiring frame is provided with a gap, the gap is located between the second threaded hole and the through hole, and the disk is located inside the gap.

[0009] In a preferred embodiment of this utility model, the diameter of the second threaded hole is smaller than the diameter of the through hole, and the diameter of the square block is larger than the diameter of the screw.

[0010] Compared with the prior art, the beneficial effects of this utility model are: this utility model achieves bidirectional clamping of the wire by setting the wiring frame, drive column, square block, pressure frame and screw, clamping the wire from two directions, thereby significantly improving the firmness and reliability of the wire connection. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a schematic diagram of the wiring frame of this utility model; Figure 5 This is a schematic diagram of the screw and square block of this utility model; Figure 6 This is a schematic diagram of the structure of the drive column and the disc of this utility model.

[0012] In the diagram: 1. Wiring frame; 2. Screw; 3. Pressure frame; 4. Drive column; 5. Disc; 6. Gap; 7. Square block; 8. First threaded hole; 9. Through hole; 10. Second threaded hole; 11. Square groove; 12. External thread. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1 to 6This utility model provides a technical solution: a securely connected terminal block, including a terminal frame 1 and a screw 2 threaded onto the terminal frame 1. A pressure frame 3 is slidably installed inside the terminal frame 1. When fixing a wire, the wire is inserted into the pressure frame 3, and the screw 2 is rotated to move it downwards. The screw 2 drives a square block 7 to move downwards and press the wire. During the rotation of the screw 2, the square block 7 at its bottom drives a drive column 4 to rotate synchronously. The drive column 4 causes the pressure frame 3 to move upwards and press the wire. At this time, the square block 7 and the pressure frame 3 form a bidirectional clamping force, clamping the wire from both above and below, thereby significantly improving the firmness and reliability of the wire connection. Furthermore, the square block... 7. The wire is clamped. Compared with the screw 2 directly clamping the wire, the contact area with the wire is larger and the fixing effect is better. The drive column 4, which is threadedly connected to the clamping frame 3, is rotatably installed on the wiring frame 1. The top of the drive column 4 is provided with a disc 5. The diameter of the disc 5 is larger than the diameter of the through hole 9, so that the disc 5 cannot pass through the through hole 9, thereby preventing the drive column 4 from separating from the wiring frame 1. A square groove 11 is opened through the interior of the drive column 4 and the disc 5. The bottom of the screw 2 is provided with a square block 7 that is slidably connected to the square groove 11. When the screw 2 rotates, it will drive the square block 7 to rotate. The square block 7 will drive the drive column 4 to rotate together. Due to the existence of the square groove 11, the screw 2 can move up and down smoothly.

[0015] The pressure frame 3 has a first threaded hole 8 at its top, and the drive column 4 has an external thread 12 that mates with the first threaded hole 8 on its outer side. The drive column 4 is threadedly connected to the first threaded hole 8 through the external thread 12.

[0016] The top of the wiring frame 1 has a second threaded hole 10 and a through hole 9 sequentially from top to bottom. The drive column 4 is rotatably installed in the through hole 9, and the screw 2 is threadedly connected to the second threaded hole 10.

[0017] The wiring frame 1 has a gap 6, which is used to accommodate the disc 5 and ensure that the disc 5 can rotate smoothly. The gap 6 is located between the second threaded hole 10 and the through hole 9, and the disc 5 is located inside the gap 6.

[0018] The diameter of the second threaded hole 10 is smaller than the diameter of the through hole 9, allowing the screw 2 to pass smoothly through the through hole 9. The diameter of the square block 7 is larger than the diameter of the screw 2, allowing the screw 2 to pass smoothly through the square groove 11.

[0019] Specifically, when connecting the wires, first insert the wires into the clamping frame 3, then rotate the screw 2 to make it move downwards. The screw 2 drives the square block 7 to move downwards. During the rotation of the screw 2, the square block 7 at its bottom will drive the drive column 4 to rotate synchronously. Since the drive column 4 is threadedly connected to the clamping frame 3, and the clamping frame 3 is restricted by the wiring frame 1 and cannot rotate, it can only move along the inside of the wiring frame 1. Therefore, the clamping frame 3 will move upwards, thereby causing the square block 7 to press the wires downwards and the clamping frame 3 to press the wires upwards, clamping the wires from both the top and bottom to ensure that the wire connection is firm.

[0020] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A securely connected terminal block, comprising a terminal frame (1) and a screw (2) threaded onto the terminal frame (1), characterized in that: The wiring frame (1) has a pressure frame (3) slidably installed inside. The wiring frame (1) has a drive column (4) rotatably installed on it and threadedly connected to the pressure frame (3). The top of the drive column (4) is provided with a disc (5). The drive column (4) and the disc (5) have a square groove (11) through them. The bottom of the screw (2) is provided with a square block (7) slidably connected to the square groove (11).

2. The securely connected terminal block according to claim 1, characterized in that: The top of the pressure frame (3) is provided with a first threaded hole (8), and the outer side of the drive column (4) is provided with an external thread (12) that mates with the first threaded hole (8).

3. A securely connected terminal block according to claim 1, characterized in that: The top of the wiring frame (1) is provided with a second threaded hole (10) and a through hole (9) from top to bottom. The drive column (4) is rotatably installed in the through hole (9). The screw (2) is threadedly connected to the second threaded hole (10).

4. A securely connected terminal block according to claim 3, characterized in that: The wiring frame (1) has a gap (6) located between the second threaded hole (10) and the through hole (9), and the disk (5) is located inside the gap (6).

5. A securely connected terminal block according to claim 3, characterized in that: The diameter of the second threaded hole (10) is smaller than the diameter of the through hole (9), and the diameter of the square block (7) is larger than the diameter of the screw (2).

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