A cable terminal capable of adjusting to different wire diameters

Abstract

The utility model relates to cable terminal technology field discloses a kind of adjustable cable terminal of adaptation different wire diameter, including terminal, the shape of terminal is rectangle, fixed assembly is provided on terminal, fixed assembly includes threaded sleeve and two circular boxes, threaded sleeve is fixedly connected on the left side of terminal, two circular boxes are fixedly connected on the left side of terminal, two circular boxes are correspondingly set up in front and back, threaded transmission is adjusted fixed plate spacing, arc groove adapts different wire diameter, antiskid line enhances friction, spring buffer protection, rubber sleeve sealing preliminary fixed combination cooperation, it can be flexibly adapted to the cable of multiple wire diameters, both ensure the stability and conductivity of different wire diameter cable after fixing, avoid the trouble that traditional terminal needs to replace model according to wire diameter, significantly improve the versatility and practicality of device, applicable to a variety of cable connection scene.

Description

Technical Field

[0001] This utility model relates to the field of cable terminal technology, specifically an adjustable cable terminal that can adapt to different wire diameters. Background Technology

[0002] Cable terminals are key components for connecting cables in power transmission systems. Their core requirements are flexible adaptation to multiple wire diameters, stable fixation, and sealed protection. In practical applications, cable diameters vary greatly. For example, different specifications of cables are required in low-voltage and high-voltage scenarios. Terminals need to be able to dynamically adapt without replacement.

[0003] However, the existing cable terminals in the industry are designed for fixed wire diameters. When changing to cables of different wire diameters, the entire terminal needs to be replaced. This lack of dynamic adjustment restricts connection efficiency and results in low connection efficiency and frequent terminal replacements that extend operation time when different specifications of cables are required in low-voltage and high-voltage scenarios. Utility Model Content

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an adjustable cable terminal block that can adapt to different wire diameters. This solves the problem that existing cable terminals in the industry are designed with a fixed wire diameter, requiring the entire terminal block to be replaced when changing to a different wire diameter cable. This lack of dynamic adjustment restricts connection efficiency and leads to low connection efficiency and frequent terminal replacements that extend operation time when using different specifications of cables in low-voltage and high-voltage scenarios.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an adjustable cable terminal block for different wire diameters, comprising a terminal block in rectangular shape, a fixing component on the terminal block, the fixing component comprising a threaded sleeve and two circular boxes, the threaded sleeve being fixedly connected to the left side of the terminal block, and the two circular boxes being fixedly connected to the left side of the terminal block, the two circular boxes being arranged in a front-to-back correspondence. The threaded sleeve is located on the opposite sides of the two circular boxes; The right side of the threaded sleeve extends into the interior of the terminal block; The outer wall of the threaded sleeve is threaded with a fixing screw.

[0006] Preferably, the left end of the fixing screw is fixedly connected to a rotating head, and the right end of the fixing screw extends rotatably into the interior of the terminal block.

[0007] Preferably, a rectangular fixing plate is rotatably connected to the right end of the fixing screw, and the rectangular fixing plate is slidably connected to the inner wall of the terminal block.

[0008] Preferably, the right side of the rectangular fixing plate is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is provided with multiple arc-shaped anti-slip textures.

[0009] Preferably, two auxiliary rods are fixedly connected to the left side of the rectangular fixing plate, and the left ends of the two auxiliary rods slide through the left side of the wiring terminal and extend into the interior of the corresponding circular box.

[0010] Preferably, a circular plate is fixedly connected to the left side of each of the two auxiliary rods, and the two circular plates are slidably connected to the inner wall of the corresponding circular box. Both auxiliary rods have springs that are movably sleeved on their outer walls.

[0011] Preferably, the left ends of the two springs are fixedly connected to the corresponding circular plates, and the right ends of the two springs are rotatably connected to the inner walls of the corresponding circular boxes. There are two fixed components, and the two fixed components are set up as left and right mirror images.

[0012] Preferably, a connecting terminal is fixedly connected to the front surface of the terminal block; A rubber sleeve is fixedly connected to the rear surface of the terminal block, and the surface of the rubber sleeve extends into the interior of the terminal block. The rubber sleeve uses elastic deformation to fit against the outer wall of the cable.

[0013] Preferably, the rectangular fixing plate can be replaced with a filled rectangular fixing plate. The filled rectangular fixing plate retains the connection and sliding function with the fixing screw and auxiliary rod. The filled rectangular fixing plate is integrally formed into an arc plate with the cable contact surface, and multiple elastic arc strips are provided on the outer surface of the arc plate.

[0014] Preferably, the rectangular fixing plate can be replaced with a convex fixing plate. The convex fixing plate retains the connection and sliding function with the fixing screw and auxiliary rod. The contact surface of the convex fixing plate is integrally formed with three parallel semicircular strips, and the surface of the semicircular strips is sandblasted.

[0015] (III) Beneficial Effects Compared with the prior art, this utility model provides an adjustable cable terminal block that can adapt to different wire diameters, and has the following beneficial effects: By combining the advantages of threaded drive to adjust the spacing of the fixing plates, arc grooves to adapt to different wire diameters, anti-slip texture to enhance friction, spring buffer protection, and rubber sleeve sealing for initial fixation, this device can flexibly adapt to cables of various wire diameters. It not only ensures the stability and conductivity of cables of different diameters after fixing, but also avoids the trouble of changing the model of traditional terminal blocks according to the wire diameter. This significantly improves the versatility and practicality of the device and is suitable for various cable connection scenarios. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of the adjustable cable terminal block that can adapt to different wire diameters according to this utility model; Figure 2 This is a schematic diagram of the rubber sleeve of this utility model; Figure 3 This is a schematic diagram of the circular plate of this utility model; Figure 4 This is a schematic diagram of the internal structure of the terminal block of this utility model; Figure 5 This is a schematic diagram of the replaceable rectangular fixing plate of this utility model; Figure 6 This is a schematic diagram of the replaceable rectangular fixing plate of this utility model.

[0017] In the diagram: 1. Terminal block; 2. Circular box; 3. Rotating head; 4. Connecting terminal; 5. Threaded sleeve; 6. Fixing screw; 7. Rubber sleeve; 8. Auxiliary rod; 9. Spring; 10. Circular plate; 11. Rectangular fixing plate; 12. Arc groove; 13. Arc anti-slip texture. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-6 This utility model provides a new technical solution: an adjustable cable terminal block that can adapt to different wire diameters, including a terminal block 1: the terminal block 1 is rectangular, and two left-right mirror-image fixing components are provided on the terminal block 1. A connecting terminal 4 is fixedly connected to the front surface of the terminal block 1, and a rubber sleeve 7 is fixedly connected to the rear surface of the terminal block 1. The terminal block 1 is the core load-bearing frame of the entire device, providing installation space for the fixing components, connecting terminal 4, and rubber sleeve 7, ensuring that each component works together to achieve cable fixing and current transmission. The rectangular structure makes the overall installation and operation more convenient.

[0020] Connection terminal 4: Connection terminal 4 is fixedly connected to the front surface of terminal 1. Connection terminal 4 is used to connect with external circuits to realize the current transmission between the cable fixed inside terminal 1 and the external circuit. It is a key connecting component for circuit conduction.

[0021] Rubber sleeve 7: The rubber sleeve 7 utilizes its own elastic deformation characteristics to seal the connection between the cable and the terminal 1, preventing external dust and moisture from entering the terminal and affecting its conductivity. On the other hand, it provides initial fixation to the cable through elastic pressure, preventing the cable from shifting left or right during subsequent adjustments, thus laying the foundation for precise fixation.

[0022] Threaded sleeve 5: Threaded sleeve 5 provides a threaded transmission basis for fixed screw 6. By meshing with fixed screw 6, it converts the rotational motion of fixed screw 6 into axial movement, thereby realizing the position adjustment of subsequent clamping components.

[0023] Fixed screw 6: Fixed screw 6 is the core of the transmission. It drives the rectangular fixed plate 11 to move axially by rotating itself, thereby adjusting the distance between the rectangular fixed plate 11 and the cable, so as to clamp and fix cables of different diameters.

[0024] Rotating head 3: Rotating head 3 provides a force application point for the operator, making it easy to manually rotate to drive the fixed screw 6 to rotate. Compared with directly rotating the screw, it is less labor-intensive and improves the ease of operation.

[0025] Rectangular fixing plate 11: The rectangular fixing plate 11 is a component that directly clamps the cable. The sliding connection design ensures that it only moves along the axial direction. The arc groove 12 adapts to cables of different diameters through the arc structure. The arc anti-slip texture 13 increases the friction with the outer wall of the cable, preventing the cable from sliding due to vibration or external force after it is fixed.

[0026] Circular box 2: Circular box 2 provides a closed installation space for auxiliary rod 8, circular plate 10 and spring 9, to prevent external impurities from affecting the movement of the parts, and at the same time provides fixed support for spring 9.

[0027] Auxiliary rod 8: Auxiliary rod 8 is used to limit the movement direction of rectangular fixing plate 11, prevent rectangular fixing plate 11 from tilting or rotating during movement, ensure that it always remains horizontal, and thus ensure that the arc groove 12 is in uniform contact with the outer wall of the cable.

[0028] Circular plate 10: Circular plate 10 is used to connect auxiliary rod 8 and spring 9, converting the axial movement of auxiliary rod 8 into the extension and contraction deformation of spring 9, while preventing auxiliary rod 8 from falling out of circular box 2, ensuring the integrity of auxiliary structure.

[0029] Spring 9: Spring 9 provides a buffering effect through its own elastic deformation to prevent the rectangular fixing plate 11 from hitting the cable instantly due to the fast rotation of the fixing screw 6, which would damage the cable sheath or deform the internal wires. At the same time, when the cable is disassembled, the elastic restoring force can assist the rectangular fixing plate 11 to return to its original position.

[0030] Furthermore, when using this adjustable cable terminal block to adapt to different wire diameters, the cable is first stripped, and then the through hole on the rubber sleeve 7 is widened to allow the stripped end of the cable to pass through. When the stripped end of the cable is fully inserted into the terminal 1, the through hole of the rubber sleeve 7 is reset. After the rubber sleeve 7 is reset, it will use its own elastic deformation to fit tightly against the outer wall of the cable. On the one hand, it seals the connection between the cable and the terminal 1 to prevent external dust and moisture from entering the terminal 1 and affecting the conductivity. On the other hand, it initially fixes the cable through elastic pressure to prevent the cable from shifting left or right during subsequent adjustment, thus laying the foundation for precise fixation. Then, the rotating head 3 is rotated, and the rotating head 3 drives the fixed screw 6 fixedly connected to it to rotate synchronously. Since the fixed screw 6 is threadedly connected to the threaded sleeve 5 on the left side of the terminal 1, and the rectangular fixing plate 11 slides and is limited to the inner wall of the terminal 1, the rotation of the fixed screw 6 will be converted into a rightward movement along the axial direction of the threaded sleeve 5, thereby pushing the rectangular fixing plate 11 to move horizontally to the right inside the terminal 1, gradually approaching the outer wall of the cable. During the rightward movement of the rectangular fixing plate 11, the two auxiliary rods 8 fixed on its left side will slide synchronously along the left side hole of the terminal 1, and the circular plate 10 at the left end of the auxiliary rod 8 will move synchronously inside the circular box 2, compressing the spring 9. The auxiliary rods 8 can prevent the rectangular fixing plate 11 from tilting or rotating during the movement, ensuring that the rectangular fixing plate 11 always remains horizontal. The elastic deformation of the spring 9 can provide a buffer for the rectangular fixing plate 11, preventing the fixing screw 6 from rotating too fast and causing the fixing plate to hit the cable instantly, resulting in damage to the cable sheath or deformation of the internal wires. When the arc-shaped groove 12 on the right side of the rectangular fixing plate 11 contacts the outer wall of the cable, the rotating head 3 continues to rotate slowly. The arc-shaped structure of the arc-shaped groove 12 can adapt to cables of different diameters. Cables with thicker diameters will fit against the inner wall of the arc-shaped groove 12, while cables with thinner diameters will fit against the outer wall of the arc-shaped groove 12, ensuring that the arc-shaped groove 12 can form a stable contact with the outer wall of the cable regardless of the cable diameter. At the same time, the multiple arc-shaped anti-slip textures 13 on the inner wall of the arc-shaped groove 12 will tightly engage with the outer wall of the cable, increasing the friction between the two and preventing the cable from sliding due to vibration or external force after fixing, further improving the fixing stability. Among them, pressure is applied simultaneously from both sides of the cable by two rectangular fixing plates 11 on the left and right sides, so that the cable is firmly clamped between two arc-shaped grooves 12; Once the cable is fixed, the connection terminal 4 on the front surface of the terminal block 1 can be used to connect to an external circuit to transmit current. If the cable needs to be replaced or disassembled later, simply rotate the rotating heads 3 on both sides in the opposite direction to move the fixing screw 6 to the left. The rectangular fixing plate 11 moves to the left synchronously under the elastic restoring force of the spring 9, releasing the clamp on the cable. Then, the cable can be pulled out from the rubber sleeve 7. The operation is convenient and will not damage the cable. The device features a combination of features, including threaded drive to adjust the spacing of the fixing plates, arc-shaped grooves to adapt to different wire diameters, anti-slip textures to enhance friction, spring buffer protection, and rubber sleeve sealing for initial fixation. This combination allows for flexible adaptation to cables of various diameters, ensuring both stability and conductivity after fixing cables of different diameters. It also avoids the hassle of changing the model of traditional terminals according to wire diameter, significantly improving the versatility and practicality of the device, making it suitable for various cable connection scenarios.

[0031] Example 1: Application of multi-strand thin cable replacement of original rectangular fixing plate with filled rectangular fixing plate like Figure 5 As shown An electronic equipment manufacturer uses multi-strand thin copper core cables with a single strand diameter of 0.5-1mm for wiring. The original rectangular fixing plate with arc groove 12 had a dispersed clamping force on the thin cables. Using the original rectangular fixing plate exposed the following core problems: First, the multi-strand thin cables were prone to loosening in the arc groove, and the contact between the single strand and the groove wall was uneven, resulting in poor conductivity stability. Second, the thin outer sheath of the thin cables was easily scratched by the pressure concentration of the original anti-slip texture 13. Third, even after the spring 9 buffer, the fixing plate was still prone to gaps with the cable, resulting in poor contact during vibration. At this time, the original rectangular fixing plate was replaced with a filled rectangular fixing plate. The filled rectangular fixing plate retains the connection and sliding function with the fixing screw 6 and the auxiliary rod 8. The filled rectangular fixing plate and the cable contact surface are integrally formed into an arc plate, and multiple elastic arc strips are set on the outer surface of the arc plate. The elastic arc strip wraps around the multi-strand thin cable, bringing loose strands together and ensuring uniform stress on each strand, thus improving conductivity and adapting to the wiring needs of electronic devices with tightly connected multi-strand thin cables, reducing circuit contact failures.

[0032] Example 2: Application of irregular cross-section cables where a convex fixing plate replaces the original rectangular fixing plate. like Figure 6 As shown In an industrial equipment workshop, cables with flat, trapezoidal, and other irregular cross-sections are connected. The original arc-shaped groove 12 had poor fit, and there were obvious problems when using the original rectangular fixing plate: First, the contact area between the irregular cable and the arc-shaped groove was small, making it easy to rotate and shift after fixing, resulting in unstable conductivity. Second, the pressure was concentrated in a local area, and long-term clamping caused deformation of the cable cross-section. Third, there was no positioning structure, and the position needed to be repeatedly adjusted after the cable was inserted, prolonging the wiring time. At this time, the original rectangular fixing plate was replaced with a convex fixing plate. The convex fixing plate retains the connection and sliding function with the fixing screw 6 and the auxiliary rod 8. The contact surface of the convex fixing plate is integrally formed with three parallel semi-circular strips, the surface of which is sandblasted. The spacing of the three semi-circular strips is adapted to the width of common irregular cross-sections. Three semi-circular bars form a triangular support to clamp irregularly shaped cables, restricting rotation and offset, increasing the contact area, improving conductivity stability, adapting to industrial scenarios for fixing irregularly shaped cross-section cables, and reducing wiring rework; Multi-point contact disperses clamping pressure, preventing local deformation of irregularly shaped cables, maintaining the integrity of the cross-sectional shape, and ensuring unaffected conductivity. This adapts to the protection needs of irregularly shaped cable structures and extends cable service life.

[0033] 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. An adjustable cable terminal block for different wire diameters, comprising a terminal block (1), characterized in that: The terminal block (1) is rectangular in shape. A fixing component is provided on the terminal block (1). The fixing component includes a threaded sleeve (5) and two circular boxes (2). The threaded sleeve (5) is fixedly connected to the left side of the terminal block (1). The two circular boxes (2) are fixedly connected to the left side of the terminal block (1). The two circular boxes (2) are arranged in a front-to-back correspondence. Among them, the threaded sleeve (5) is located on the opposite sides of the two circular boxes (2); The right side of the threaded sleeve (5) penetrates into the interior of the terminal (1); Among them, the outer wall of the threaded sleeve (5) is threaded with a fixing screw (6).

2. The adjustable cable terminal block for different wire diameters according to claim 1, characterized in that: The left end of the fixing screw (6) is fixedly connected to the rotating head (3), and the right end of the fixing screw (6) extends rotatably into the interior of the terminal (1).

3. The adjustable cable terminal block for different wire diameters according to claim 1, characterized in that: The right end of the fixing screw (6) is rotatably connected to a rectangular fixing plate (11), and the rectangular fixing plate (11) is slidably connected to the inner wall of the terminal block (1).

4. The adjustable cable terminal block for different wire diameters according to claim 3, characterized in that: The rectangular fixing plate (11) has an arc groove (12) on its right side, and the inner wall of the arc groove (12) has multiple arc anti-slip patterns (13).

5. The adjustable cable terminal block for different wire diameters according to claim 3, characterized in that: Two auxiliary rods (8) are fixedly connected to the left side of the rectangular fixing plate (11). The left ends of the two auxiliary rods (8) slide through the left side of the wiring terminal (1) and extend into the interior of the corresponding circular box (2).

6. The adjustable cable terminal block for different wire diameters according to claim 5, characterized in that: A circular plate (10) is fixedly connected to the left side of each of the two auxiliary rods (8), and the two circular plates (10) are slidably connected to the inner wall of the corresponding circular box (2); Among them, the outer walls of the two auxiliary rods (8) are movably sleeved with springs (9).

7. The adjustable cable terminal block for different wire diameters according to claim 6, characterized in that: The left ends of the two springs (9) are fixedly connected to the corresponding circular plates (10), and the right ends of the two springs (9) are rotatably connected to the inner wall of the corresponding circular box (2). There are two fixed components, and the two fixed components are set up as left and right mirror images.

8. The adjustable cable terminal block for different wire diameters according to claim 1, characterized in that: The front surface of the terminal block (1) is fixedly connected to the connection terminal (4); Among them, a rubber sleeve (7) is fixedly connected to the rear surface of the terminal (1). The surface of the rubber sleeve (7) extends into the interior of the terminal (1). The rubber sleeve (7) fits against the outer wall of the cable by means of elastic deformation.

9. The adjustable cable terminal block for different wire diameters according to claim 3, characterized in that: The rectangular fixing plate (11) can be replaced by a filled rectangular fixing plate. The filled rectangular fixing plate retains the connection and sliding function with the fixing screw (6) and the auxiliary rod (8). The filled rectangular fixing plate is integrally formed with the cable contact surface into an arc plate, and multiple elastic arc strips are provided on the outer surface of the arc plate.

10. An adjustable cable terminal block for different wire diameters according to claim 3, characterized in that: The rectangular fixing plate (11) can be replaced by a convex fixing plate. The convex fixing plate retains the connection and sliding function with the fixing screw (6) and the auxiliary rod (8). The contact surface of the convex fixing plate is integrally formed with three parallel semicircular strips, and the surface of the semicircular strips is sandblasted.

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