Ground wire wiring terminal capable of preventing stranded wire from falling off

Abstract

The utility model discloses a ground wire binding post capable of preventing a stranded wire from falling off, a binding post main body comprises a fixed plate and a sleeve, one end of the sleeve is provided with the fixed plate, the sleeve is provided with a wire insertion cavity along the axial direction, the sleeve is provided with an extension groove at the top end of the wire insertion cavity, and the sleeve is provided with a blocking table at the opening and at the outer end of the extension groove. The upper portion of the sleeve is provided with a bolt, the arc-shaped pressing plate is movably arranged in the extending groove and the wire inserting cavity, the lower surface of the arc-shaped pressing plate is provided with a plurality of triangular barbs, and the upper surface of the arc-shaped pressing plate is matched with the bolt. The inner side surfaces of the arc-shaped pressing plates press the stranded wires through the triangular barbs, so that the stranded wires are prevented from being separated from the sleeve, the arc-shaped pressing plates can be prevented from being separated from the wire inserting cavities through the blocking tables at the outer ends of the extending grooves, and the stranded wires are not prone to being separated from the sleeve.

Description

Technical Field

[0001] This utility model relates to the field of grounding terminal block technology, specifically a grounding terminal block for preventing stranded wires from falling off. Background Technology

[0002] In electrical engineering, terminals generally refer to wiring terminals, also called wire terminals. Types include single-hole, double-hole, plug-in, and hook types. Materials include silver-plated copper, zinc-plated copper, copper, aluminum, and iron. Their primary function is to transmit electrical signals or conduct electricity.

[0003] Currently, grounding terminals connected to stranded wires are generally made of aluminum, iron, etc. One type of grounding terminal for connecting to stranded wires uses a pressure device to press the sleeve part tightly, thereby clamping the stranded wire; the other type uses bolts to press the stranded wire tightly, thereby preventing the stranded wire from coming off. However, with the above connection methods, the stranded wire and the terminal are still prone to coming off. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a grounding terminal block that prevents stranded wires from falling off, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grounding terminal block for preventing stranded wire from falling off, comprising a terminal block body, an arc-shaped pressure plate, and a bolt. The terminal block body includes a fixing plate and a sleeve. The fixing plate is provided at one end of the sleeve, and a insertion cavity is provided along the axial direction of the sleeve. The insertion cavity is open at the end away from the fixing plate. An extension groove is provided at the top of the insertion cavity of the sleeve. A stop is provided at the outer end of the extension groove of the sleeve at the open end. A screw hole is provided through the upper part of the sleeve, and the screw hole communicates with the insertion cavity. The bolt cooperates with the screw hole. The arc-shaped pressure plate is movably disposed in the extension groove and the insertion cavity. Several triangular barbs are provided on the lower surface of the arc-shaped pressure plate, and the upper surface of the arc-shaped pressure plate cooperates with the bolt.

[0006] Preferably, the grounding terminal block provided by this utility model for preventing stranded wire from falling off includes a thickened connecting section at the connection between the sleeve and the fixing plate.

[0007] Preferably, the grounding terminal block provided by this utility model for preventing stranded wire from falling off includes a fixing plate having several fixing holes.

[0008] Preferably, the grounding terminal block provided by this utility model for preventing stranded wire from falling off has a chamfered end at the end of the insertion cavity away from the fixing plate.

[0009] Preferably, the grounding terminal block provided by this utility model for preventing stranded wire from falling off has a vertical surface at the end of the triangular barb near the fixing plate and an inclined surface at the end of the triangular barb away from the fixing plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] An extension groove is provided at the upper end of the insertion cavity inside the sleeve, and a baffle is provided at the outer end of the extension groove. A screw hole is provided at the top of the sleeve to cooperate with the bolt. The insertion cavity of the sleeve is connected by an arc-shaped pressure plate. When the stranded wire is inserted into the insertion cavity of the sleeve, the bolt presses down on the arc-shaped pressure plate. The inner surface of the arc-shaped pressure plate presses down on the stranded wire with a triangular barb, thereby preventing the stranded wire from coming off the sleeve. The baffle at the outer end of the extension groove can prevent the arc-shaped pressure plate from coming off the insertion cavity, thus making it difficult for the stranded wire to come off the sleeve. Attached Figure Description

[0012] Figure 1 This is a side view cross-sectional structural diagram of the present invention;

[0013] Figure 2 This is a top view of the main body of the terminal block.

[0014] Figure 3 This is a front view structural diagram of the present invention;

[0015] Figure 4 This is a front view structural diagram of the main body of the terminal block;

[0016] Figure 5 This is a schematic diagram of an arc-shaped pressure plate structure;

[0017] Figure 6 This is a schematic diagram showing the connection between the present invention and the stranded wire.

[0018] In the diagram: 1. Arc-shaped pressure plate; 2. Bolt; 3. Fixing plate; 4. Sleeve; 5. Wire insertion cavity; 6. Extension groove; 7. Stand; 8. Screw hole; 9. Triangular barb; 10. Thickened connecting section; 11. Fixing hole. Detailed Implementation

[0019] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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] Please see Figure 1-5 This utility model provides a technical solution: a grounding terminal block for preventing stranded wire from falling off, comprising a terminal block body, an arc-shaped pressure plate 1, and bolts 2. The terminal block body includes a fixing plate 3 and a sleeve 4. The fixing plate 3 is provided at one end of the sleeve 4. A thickened connecting section 10 is provided at the connection between the sleeve 4 and the fixing plate 3. The thickened connecting section 10 ensures the structural strength of the connection between the fixing plate 3 and the sleeve 4, preventing easy breakage between the fixing plate 3 and the sleeve 4. The fixing plate 3 has several fixing holes 11 to cooperate with bolts and nuts, thereby realizing the installation and fixation of the fixing plate 3. The sleeve 4 has a wire insertion cavity 5 along its axial direction. The end of the wire insertion cavity 5 away from the fixing plate 3 has a chamfer to facilitate the smooth insertion of the stranded wire head. Insert the cable into the insertion cavity 5. The end of the insertion cavity 5 away from the fixing plate 3 is open. The sleeve 4 is located at the top of the insertion cavity 5 and has an extension groove 6. The sleeve 4 is located at the open end and at the outer end of the extension groove 6 and has a baffle 7. The upper part of the sleeve 4 has a through screw hole 8, which is connected to the insertion cavity 5. The bolt 2 is engaged with the screw hole 8. The arc-shaped pressure plate 1 is movably disposed in the extension groove 6 and the insertion cavity 5. The lower surface of the arc-shaped pressure plate 1 is provided with several triangular barbs 9. The end of the triangular barb 9 near the fixing plate 3 is a vertical surface, and the end of the triangular barb 9 away from the fixing plate 3 is an inclined surface. In this way, when the stranded wire is inserted into the insertion cavity, the vertical surface of the fixing plate 3 can prevent the stranded wire from easily detaching from the sleeve 4. The upper surface of the arc-shaped pressure plate 1 is engaged with the bolt 2.

[0022] Processing Method and Operating Principle: First, a blank of the terminal block body is prepared. The terminal block body is made of aluminum. A wire insertion cavity 5 and an extension groove 6 are opened on the blank of the terminal block body, and a screw hole 8 is tapped at the top of the sleeve 4. Simultaneously, a flat plate with a triangular barb 9 is processed. The flat plate is bent using a bending device to obtain an arc-shaped pressure plate 1. In use, the terminal block body is inverted, and the arc-shaped pressure plate 1 is placed in the extension groove 6, with the triangular barb 9 facing the center of the wire insertion cavity 5. The bolt 2 is then connected to the screw hole 8. Next, the end of the stranded wire is inserted into the wire insertion cavity 5, and the bolt 2 is tightened, causing the bolt 2 to press against the arc-shaped pressure plate 1. The arc-shaped pressure plate 1 applies pressure to the stranded wire, and the tip of the triangular barb 9 is inserted radially into the stranded wire, completing the tight connection between the stranded wire and the terminal block body. Figure 6As shown. This utility model has a reasonable structure. The upper end of the insertion cavity 5 inside the sleeve 4 is provided with an extension groove 6, and the outer end of the extension groove 6 is provided with a baffle 7. The top of the sleeve 4 is provided with a screw hole 8 to cooperate with the bolt 2. The insertion cavity 5 of the sleeve 4 is cooperated with by an arc-shaped pressure plate 1. When the stranded wire is inserted into the insertion cavity 5 of the sleeve 4, the bolt 2 presses down on the arc-shaped pressure plate 1. The inner surface of the arc-shaped pressure plate 1 is pressed by a triangular barb 9 to press the stranded wire, thereby preventing the stranded wire from coming out of the sleeve 4. The baffle 7 at the outer end of the extension groove 6 can prevent the arc-shaped pressure plate 1 from coming out of the insertion cavity 5, thus making it difficult for the stranded wire to come out of the sleeve 4.

[0023] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0024] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A grounding terminal block for preventing stranded wire from falling off, characterized in that: The device includes a terminal block body, an arc-shaped pressure plate (1), and bolts (2). The terminal block body includes a fixing plate (3) and a sleeve (4). The fixing plate (3) is provided at one end of the sleeve (4). The sleeve (4) has a wire insertion cavity (5) along its axial direction. The end of the wire insertion cavity (5) away from the fixing plate (3) is open. An extension groove (6) is provided at the top of the sleeve (4) in the wire insertion cavity (5). The sleeve (4) is located at the open end and... A baffle (7) is provided at the outer end of the extension groove (6). A screw hole (8) is provided through the upper part of the sleeve (4). The screw hole (8) is connected to the insertion cavity (5). The bolt (2) is engaged with the screw hole (8). The arc-shaped pressure plate (1) is movably disposed in the extension groove (6) and the insertion cavity (5). Several triangular barbs (9) are provided on the lower surface of the arc-shaped pressure plate (1). The upper surface of the arc-shaped pressure plate (1) is engaged with the bolt (2).

2. A grounding terminal block for preventing stranded wire from falling off according to claim 1, characterized in that: A thickened connecting section (10) is provided at the connection between the sleeve (4) and the fixing plate (3).

3. A grounding terminal block for preventing stranded wire from falling off according to claim 1, characterized in that: The fixing plate (3) has several fixing holes (11).

4. A grounding terminal block for preventing stranded wire from falling off according to claim 1, characterized in that: The insertion cavity (5) has a chamfer at the end away from the fixing plate (3).

5. A grounding terminal block for preventing stranded wire from falling off according to claim 1, characterized in that: The end of the triangular barb (9) near the fixing plate (3) is a vertical surface, and the end of the triangular barb (9) away from the fixing plate (3) is an inclined surface.

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