A self-locking end clamp

Abstract

The utility model relates to the technical field of end head wire clamp, and disclose a self -locking type end head wire clamp, it includes the mounting panel, one side symmetry fixed connection of mounting panel has two limit blocks, the one side of two limit blocks all is seted up limit slot, the inside slide coupling of two limit slots has same mobile link, one side of mobile link is provided with clamping mechanism, clamping mechanism includes two first connecting rods, two first connecting rods with mobile link one side rotation connection, through the setting of clamping mechanism, mechanism through adopting first connecting rod, second connecting rod and movable plate structure, the linear motion of mobile link is converted into the opening and closing movement of movable plate, can adapt to the cable of different thickness, and the clamping firmness is high, can effectively prevent the cable slack, simultaneously, the fixed base is connected with movable plate through fixed bolt, and the different specifications or types of fixed base are convenient to replace, further improved the security to different cable end.

Description

Technical Field

[0001] This utility model belongs to the field of end clamp technology, specifically a self-locking end clamp. Background Technology

[0002] Transformers are an indispensable part of the power grid, and their reliability is paramount. However, the connection points between the transformer and external conductors are a relatively weak link in the entire system, prone to frequent failures. Analysis reveals that the main cause lies in poor contact and the lack of self-locking functionality at these connections. Under the influence of environmental factors such as thermal expansion and contraction, the connections between the terminals and clamps, and between the clamps and conductors, are easily loosened. When external forces cause vibrations, gaps may appear between these connections, potentially allowing air to be ignited by voltage breakdown and generate an electric arc. The extremely high temperature of this arc can potentially lead to serious accidents such as fires, resulting in power outages and causing significant inconvenience to production and daily life.

[0003] In the prior art, under the influence of environmental factors such as thermal expansion and contraction and external vibration, the terminal clamp is prone to loosening between the terminal block and the clamp, and between the clamp and the conductor, resulting in poor contact. This not only affects the stability of power transmission, but may also cause safety hazards such as electric arc. Therefore, this application proposes a self-locking terminal clamp. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a self-locking end clamp, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-locking end clamp, including a mounting plate, on one side of which two limiting blocks are symmetrically fixedly connected, and each of the two limiting blocks has a limiting groove on one side. The two limiting grooves are slidably connected to the same moving rod, and a clamping mechanism is provided on one side of the moving rod.

[0006] Preferably, the clamping mechanism includes two first connecting rods, which are rotatably connected to one side of the moving rod. One end of each of the two first connecting rods is rotatably connected to a second connecting rod, and one end of each of the two second connecting rods is rotatably connected to a movable plate. The two movable plates are rotatably connected to each other, and one side of each of the two movable plates is fixedly connected to a fixing block. The fixing block is rotatably connected to the mounting plate through a fixing pin, and a fixing seat is provided on the inner side of each of the two movable plates.

[0007] Preferably, a through groove is provided on one side of the mounting plate, and a lead screw is rotatably installed inside the through groove. The lower end of the lead screw is rotatably connected to the inner wall of the through groove, and the upper end of the lead screw extends to the top of the mounting plate. A movable block is threadedly connected to the outside of the lead screw, and one side of the movable block is fixedly connected to one side of the movable rod.

[0008] Preferably, the lead screw is externally threaded with a locking block, which is located at the upper end of the mounting plate.

[0009] Preferably, mounting holes are provided on the inner sides of both movable plates, and the fixing seat is threadedly connected to the mounting holes by fixing bolts.

[0010] Preferably, the mounting base is made of insulating material.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Through the clamping mechanism, the linear motion of the moving rod is converted into the opening and closing motion of the movable plate by adopting the structure of the first link, the second link and the movable plate. It can adapt to cables of different thicknesses and has a high clamping firmness, which can effectively prevent the cable from loosening. At the same time, the fixed base is connected to the movable plate by the fixing bolt, which makes it easy to replace the fixed base of different specifications or types, further improving the safety of different end clamps.

[0013] 2. The limiting groove on the limiting block provides guidance for the moving rod, ensuring the stability of the moving rod's movement and helping to improve the overall stability of the wire clamp structure; by controlling the movement of the moving rod through the lead screw and the moving block, the opening and closing of the clamping mechanism can be precisely controlled, and the locking block can fix the position of the lead screw, preventing it from rotating on its own due to external force, ensuring that the clamping mechanism remains in a fixed position, and ensuring the reliability of the clamping operation. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the mounting plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the fixing base of this utility model.

[0020] In the diagram: 1. Mounting plate; 2. Limiting block; 3. Limiting groove; 4. Moving rod; 5. Clamping mechanism; 501. First connecting rod; 502. Second connecting rod; 503. Movable plate; 504. Fixed block; 505. Fixed pin; 506. Fixed seat; 507. Through groove; 508. Lead screw; 509. Moving block; 510. Locking block; 511. Mounting hole; 512. Fixing bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Depend on Figures 1 to 4 As shown, this utility model includes an installation plate 1, on one side of which two limiting blocks 2 are symmetrically fixedly connected. Each of the two limiting blocks 2 has a limiting groove 3 on one side. The same moving rod 4 is slidably connected inside the two limiting grooves 3. A clamping mechanism 5 is provided on one side of the moving rod 4.

[0023] Mounting plate 1 serves as the carrier of clamping mechanism 5. The limiting groove 3 on the limiting block 2 provides guidance for moving rod 4, allowing moving rod 4 to slide only in a specific direction within the limiting groove 3. This provides stable support and a moving track for the subsequent action of clamping mechanism 5. The setting of limiting block 2 and limiting groove 3 ensures the stability of moving rod 4, helps improve the overall stability of the wire clamp structure, lays the foundation for achieving reliable clamping function, and facilitates subsequent clamping operations on cables.

[0024] The clamping mechanism 5 includes two first connecting rods 501, which are rotatably connected to one side of the moving rod 4. One end of each of the two first connecting rods 501 is rotatably connected to a second connecting rod 502. One end of each of the two second connecting rods 502 is rotatably connected to a movable plate 503. The two movable plates 503 are rotatably connected to each other. One side of each of the two movable plates 503 is fixedly connected to a fixing block 504. The fixing block 504 is rotatably connected to the mounting plate 1 through a fixing pin 505. The inner side of each of the two movable plates 503 is provided with a fixing seat 506.

[0025] When the moving rod 4 moves, it drives the first connecting rod 501, which is rotatably connected to it, to move. The first connecting rod 501 then drives the movable plate 503 to rotate around the fixed pin 505 through the second connecting rod 502, which is rotatably connected to it. This causes the two movable plates 503 to open and close relative to each other, thereby clamping or releasing the cable. The fixed seat 506 is used to directly contact and clamp the cable. The clamping mechanism 5 composed of this connecting rod structure can convert the linear motion of the moving rod 4 into the opening and closing motion of the movable plate 503, which facilitates the clamping and fixing of the cable. It can adapt to cables of different thicknesses, and the structure is relatively flexible. The clamping firmness is high, and it can effectively prevent the cable from loosening.

[0026] A through groove 507 is provided on one side of the mounting plate 1. A lead screw 508 is rotatably installed inside the through groove 507. The lower end of the lead screw 508 is rotatably connected to the inner wall of the through groove 507. The upper end of the lead screw 508 extends to the top of the mounting plate 1. A moving block 509 is threadedly connected to the outside of the lead screw 508. One side of the moving block 509 is fixedly connected to one side of the moving rod 4.

[0027] By rotating the lead screw 508, since the lead screw 508 is threadedly connected to the moving block 509, the rotation of the lead screw 508 will be converted into the up and down linear motion of the moving block 509, which in turn drives the moving rod 4, which is fixedly connected to the moving block 509, to move, and finally controls the opening and closing of the clamping mechanism 5.

[0028] The lead screw 508 is externally threaded with a locking block 510, which is located at the upper end of the mounting plate 1;

[0029] After the moving block 509 is adjusted to the appropriate position by rotating the lead screw 508, tighten the locking block 510 so that it fits tightly against the mounting plate 1. Since the locking block 510 is threadedly connected to the lead screw 508, the lead screw 508 is fixed in place, preventing the lead screw 508 from rotating on its own due to external forces or other factors during subsequent use, thereby ensuring that the moving block 509 and the clamping mechanism 5 remain in a fixed position.

[0030] The inner sides of both movable plates 503 are provided with mounting holes 511, and the fixed base 506 is threadedly connected to the mounting holes 511 by fixing bolts 512.

[0031] The fixed base 506 is threadedly connected to the mounting hole 511 on the movable plate 503 by the fixing bolt 512. By tightening or loosening the fixing bolt 512, the fixed base 506 can be installed on the movable plate 503 or removed from the movable plate 503, making it convenient to replace the fixed base 506 of different specifications or types according to actual needs.

[0032] The mounting bracket 506 is made of insulating material;

[0033] The mounting base 506 is made of insulating material. When clamping the cable, it can separate the cable from the metal parts such as the movable plate 503, prevent current from being conducted through the mounting base 506, and play a role in electrical insulation.

[0034] Working principle: In use, rotating the lead screw 508, since the lead screw 508 is threadedly connected to the moving block 509, the rotation of the lead screw 508 is converted into the up-and-down linear motion of the moving block 509. The moving block 509 is fixedly connected to the moving rod 4, and thus the moving block 509 drives the moving rod 4 to slide along the limiting groove 3 on the limiting block 2. The movement of the moving rod 4 drives the two first connecting rods 501 rotatably connected to it to move. The first connecting rods 501 push the movable plate 503 to rotate around the fixed pin 505 through the rotatably connected second connecting rod 502, so that the two movable plates 503 open and close relative to each other. When the moving rod 4 moves upward, the transmission of the connecting rod structure... When the movable plate 503 closes inward, the inner fixed seat 506 contacts and clamps the end clamp. When moving in the opposite direction, the movable plate 503 opens outward, releasing the end clamp. After adjusting to a suitable clamping state, the locking block 510 outside the screw 508 is tightened. The screw 508 is fixed by the thread self-locking to prevent it from rotating on its own due to external force, thereby keeping the positions of the moving block 509, the moving rod 4, and the clamping mechanism 5 stable and ensuring that the end clamp is firmly clamped. The fixed seat 506 is connected to the movable plate 503 by the fixing bolt 512. Different specifications can be replaced to adapt to different cables. The insulating material of the fixed seat 506 can isolate current and improve safety.

Claims

1. A self-locking end clamp, comprising a mounting plate (1), characterized in that: Two limiting blocks (2) are symmetrically fixedly connected to one side of the mounting plate (1). Each of the two limiting blocks (2) has a limiting groove (3) on one side. The two limiting grooves (3) are slidably connected to the same moving rod (4). A clamping mechanism (5) is provided on one side of the moving rod (4).

2. The self-locking end clamp according to claim 1, characterized in that: The clamping mechanism (5) includes two first connecting rods (501), which are rotatably connected to one side of the moving rod (4). One end of each of the two first connecting rods (501) is rotatably connected to a second connecting rod (502), and one end of each of the two second connecting rods (502) is rotatably connected to a movable plate (503). The two movable plates (503) are rotatably connected to each other. One side of each of the two movable plates (503) is fixedly connected to a fixing block (504), and the fixing block (504) is rotatably connected to the mounting plate (1) through a fixing pin (505). The inner side of each of the two movable plates (503) is provided with a fixing seat (506).

3. A self-locking end clamp according to claim 1, characterized in that: A through groove (507) is provided on one side of the mounting plate (1). A lead screw (508) is rotatably installed inside the through groove (507). The lower end of the lead screw (508) is rotatably connected to the inner wall of the through groove (507). The upper end of the lead screw (508) extends to the top of the mounting plate (1). A moving block (509) is threadedly connected to the outside of the lead screw (508). One side of the moving block (509) is fixedly connected to one side of the moving rod (4).

4. A self-locking end clamp according to claim 3, characterized in that: The lead screw (508) is externally threaded with a locking block (510), which is located at the upper end of the mounting plate (1).

5. A self-locking end clamp according to claim 2, characterized in that: The inner sides of both movable plates (503) are provided with mounting holes (511), and the fixed seat (506) is threadedly connected to the mounting holes (511) by fixing bolts (512).

6. A self-locking end clamp according to claim 2, characterized in that: The mounting base (506) is made of insulating material.

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