Locking rod cable clamp suitable for cables of different diameters

Abstract

The utility model provides a kind of lock rod wire clamp suitable for different wire diameter cable, comprising: wire clamp body, the movable clamp block for clamping cable and the driving component of driving movable clamp block sliding with wire clamp body sliding cooperation, wire clamp body is provided with fixed clamp block, fixed clamp block is provided with the first arc clamping surface with cable contact, movable clamp block is provided with the second arc clamping surface with cable contact, wire clamp body is equipped with the sliding slot or plane with movable clamp block sliding connection, fixed clamp block and movable clamp block between being provided with the limiting mechanism for clamping arbitrary wire diameter cable. The utility model is simple in structure, easy to operate, suitable for the cable of arbitrary wire diameter, can install torque simultaneously, reduce the possibility of cable loosening and abrasion.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology for overhead lines, and in particular to a locking rod clamp suitable for cables of different diameters. Background Technology

[0002] Locking rod clamps are metal clamps used in overhead power and communication lines, primarily for securing conductors. They tighten the conductors using bolts, wedges, or crimping structures to prevent slippage or loosening. They are typically made of aluminum alloy or galvanized steel, combining strength and corrosion resistance, with some designs incorporating moisture-proof features. Traditional clamp installation is cumbersome, requiring multiple operating rods, increasing operational complexity and safety risks. During installation, the clamping force relies on manual operation, resulting in inconsistent clamping and incompatibility with cables of different diameters, leading to issues like inadequate or excessive clamping causing cable deformation. Furthermore, under wind-induced vibration and thermal expansion and contraction, the contact area between the clamp and the cable is prone to loosening or even wear after prolonged use. Utility Model Content

[0003] The purpose of this invention is to overcome the problems of cumbersome operation, poor clamping torque consistency, and easy loosening and wear of existing wire clamps. It provides a locking rod wire clamp suitable for cables of different diameters, with a simple structure, easy installation and operation, and can unify the installation torque while reducing the possibility of loosening and wear.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a locking bar clamp suitable for cables of different diameters, comprising: a clamp body, a movable clamping block for clamping the cable that slides with the clamp body, and a driving component for driving the movable clamping block to slide, characterized in that: the clamp body is provided with a fixed clamping block, the fixed clamping block is provided with a first arc-shaped clamping surface that contacts the cable, the movable clamping block is provided with a second arc-shaped clamping surface that contacts the cable, the clamp body is provided with a groove or plane that slides with the movable clamping block, and a limiting mechanism for clamping cables of any diameter is provided between the fixed clamping block and the movable clamping block.

[0005] Furthermore, the limiting mechanism includes a limiting block disposed on the movable clamping block and a limiting groove correspondingly opened on the fixed clamping block. When clamping the cable, if the cable diameter is relatively small, the limiting block will be inserted into the limiting groove, so that the space for installing the cable forms a closed ring and clamps the cable, thereby achieving clamping and fixing of cables of any diameter.

[0006] Furthermore, the limiting block is a protrusion located on the front side or both sides of the movable clamping block. The front protrusion is higher than the rear protrusion. When installing the cable, the front protrusion can prevent the cable from coming off the movable clamping block.

[0007] Furthermore, the clamp body is provided with a sliding inclined surface that is slidably connected to the movable clamping block. The sliding inclined surface forms an angle with the vertical direction, and the angle ranges from 10° to 45°. The sliding inclined surface provides guidance for the movable clamping block to slide towards the fixed clamping block and, due to its inclined setting, makes it easier to place the cable and prevent the cable from falling off. On the other hand, it can disperse the weight of the cable and reduce the working intensity of tightening.

[0008] Furthermore, the cable extension directions on both sides of the second arc-shaped clamping surface are chamfered, and the cable extension directions on both sides of the first arc-shaped clamping surface are set as flared openings with the openings widening outwards. The chamfering and flared openings enable the cable to transition effectively in the clamping area, preventing local stress concentration from damaging the cable.

[0009] Furthermore, the second arc-shaped clamping surface is provided with protruding ridges to increase the frictional force on the cable, thereby increasing the frictional force between the second arc-shaped clamping surface and the cable.

[0010] Furthermore, the first arc-shaped clamping surface, the second arc-shaped clamping surface, the chamfer, and the flared surface are provided with soft rubber pads. When the cable expands and contracts due to temperature changes, the soft rubber pads are elastic and can always keep the cable clamped. At the same time, the soft rubber pads can effectively protect the cable from wear.

[0011] Furthermore, the driving component includes a screw threadedly connected to the clamp body and an operating part disposed at the lower end of the screw, the top of the screw being rotatably connected to the movable clamping block.

[0012] Furthermore, the operating part is a torque cap located at the bottom of the screw, and the head of the torque cap is fitted with a detachable turning ring.

[0013] The beneficial effects of this utility model are: 1. This utility model's locking rod cable clamp has a simple structure, high stability, and easy operation. It clamps the cable reliably through a fixed clamping block and a bolt-driven movable clamping block. The arc-shaped clamping surface effectively limits cable displacement and prevents loosening. Furthermore, a torque cap is provided at the tail of the bolt. During installation, after the bolt is tightened to the set torque, the head of the torque cap breaks off directly, ensuring uniform installation torque and proper cable clamping. Simultaneously, the head of the torque cap is fitted with a detachable tightening ring, making it suitable for socket-type tools or lever-type tools, thus offering strong versatility.

[0014] 2. The locking rod clamp of this utility model is suitable for cables of different diameters both indoors and outdoors, and has a wide range of applications. By setting an upward protruding limiting block on the movable clamping block and a corresponding limiting groove on the fixed clamping block, the inner wall of the limiting block is set as an arc. When clamping the cable, if the cable diameter is relatively small, the limiting block will be inserted into the limiting groove, so that the space for installing the cable forms a closed ring and clamps the cable, thus making it suitable for cables of any diameter.

[0015] 3. The cable extension directions on both sides of the second arc-shaped clamping surface of the locking rod clamp of this utility model are chamfered, and the cable extension directions on both sides of the first arc-shaped clamping surface are set as flared mouths, which can protect the cable and prevent the clamp from damaging the cable insulation layer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0018] Figure 2 This is a schematic diagram of the torsion cap and the turning ring of this utility model.

[0019] Figure 3 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0020] Figure 4 This is a bottom view of Embodiment 2 of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Wire clamp body; 1-1. Limiting groove; 1-2. Fixing clamping block; 1-3. Support block; 1-4. Flared mouth; 1-5. First arc-shaped clamping surface; 1-6. Sliding inclined surface; 2. Movable clamping block; 2-1. Limiting block; 2-2. Second arc-shaped clamping surface; 2-3. Chamfer; 2-4. Raised edge; 3. Screw; 4. Torque cap; 4-1. Limiting ball hole; 5. Tightening ring; 6. Spring ball clamp; 7. Insulating support column; 8. Soft rubber pad; 9. Avoidance groove. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Example 1: Please refer to Figures 1 to 2As shown in the figure, this embodiment of a locking bar clamp suitable for cables of different diameters includes a clamp body 1, a fixed clamping block 1-2, a movable clamping block 2, and a driving component. The clamp body 1 is disposed above an insulating support column 7. The movable clamping block 2 is slidably engaged with the fixed clamping block 1-2 to clamp the cable. The driving component is used to drive the movable clamping block 2 to slide. The fixed clamping block 1-2 is integral with the clamp body 1 and is located above the clamp body 1. The fixed clamping block 1-2 is a C-shaped block and has a downward-facing first arc-shaped clamping surface 1-5 for contacting the cable. The movable clamping block 2 is located below the fixed clamping block 1-2 and has an upward-facing second arc-shaped clamping surface 2-2. The bottom of the clamp body 1 is also provided with a support block 1-3 for mounting the driving component. The support block 1-3 has a threaded hole. The driving component includes a screw 3 threadedly connected to the support block 1-3 of the clamp body 1 and an operating part disposed at the lower end of the screw 3. The movable clamping block 2 is located on the top of the screw 3 and rotatably connected to the top of the screw 3. The operating part includes a torque cap 4 located at the bottom of the screw 3 and a turning ring 5 sleeved on the head of the torque cap 4. The turning ring 5 engages with the head of the torque cap 4, and a spring ball retainer 6 is provided inside the turning ring 5. The head of the torque cap 4 has a spherical hole for engaging with the turning ring 5 and the spring ball retainer 6, facilitating disassembly. During installation, after the bolt is tightened to the set torque, the head of the torque cap will break off directly, thus ensuring uniform installation torque and proper cable clamping. It can be used with socket-type tools or lever-type tools, making it highly versatile.

[0024] The clamp body 1 is also provided with a sliding inclined surface 1-6, which is located in the downward extension direction of the first arc-shaped clamping surface 1-5. The movable clamping block 2 is slidably connected to the sliding inclined surface 1-6, and the sliding inclined surface 1-6 forms an angle with the vertical direction, with the angle ranging from 10° to 45°. In another embodiment, the clamp body 1 may also be provided with a groove, and the movable clamping block 2 is provided with a slider slidably disposed in the groove. The surface of the second arc-shaped clamping surface 2-2 is provided with a protruding ridge to increase the friction force on the cable. The cable extension direction on both sides of the second arc-shaped clamping surface 2-2 is provided with a chamfer 2-3, and the cable extension direction on both sides of the first arc-shaped clamping surface 1-5 is provided with a flared opening 1-4 that widens outward, which serves to transition the cable and prevent stress concentration between the cable and the edge area of ​​the clamp, thus preventing wear.

[0025] The fixed clamping block 1-2 and the movable clamping block 2 are equipped with limiting mechanisms for clamping cables of any diameter. The limiting mechanism includes a limiting groove 1-1 and a limiting block 2-1. The limiting block 2-1 is located on the movable clamping block 2, and the limiting groove 1-1 is located on the fixed clamping block 1-2. The limiting block 2-1 is a protrusion located on the front or both sides of the movable clamping block 2. In this embodiment, the limiting block 2-1 consists of two protrusions located on the front and rear sides of the movable clamping block 2, with the front protrusion higher than the rear protrusion, used to prevent the cable from detaching from the movable clamping block during cable installation. The limiting groove 1-1 consists of two clearance grooves located at corresponding positions on the fixed clamping block 1-2. In this embodiment, the two clearance grooves on the front and rear sides are interconnected, dividing the fixed clamping block 1-2 into two C-shaped blocks. The inner surfaces of the two C-shaped blocks form limiting surfaces. The two sides of the limiting block 2-1 cooperate with the two sides of the limiting groove 1-1 to restrict the deflection of the movable clamping block 2. When clamping the cable, if the cable diameter is relatively small, the limiting block will be inserted into the limiting groove, so that the space where the cable is installed forms a closed ring and clamps the cable, thus making it suitable for cables of any diameter.

[0026] In this embodiment, the clamp body and movable clamp block can be made of metal or insulating composite materials, depending on the application scenario (such as low temperature environment, high temperature environment, etc.) or design requirements (such as lightweight).

[0027] Example 2: Please refer to Figures 2 to 4 As shown, based on the locking bar clamp of Embodiment 1, the limiting groove 1-1 of the locking bar clamp in this embodiment fills the limiting groove 1-1 that completely penetrates the fixing block 1-2 in Embodiment 1. In this embodiment, the limiting groove 1-1 is only formed on the edge of the fixing block 1-2. The front part of the fixing block 1-2 has a groove to form the limiting groove 1-1, and the rear end of the fixing block 1-2 has a non-through clearance groove 9 to prevent interference with the rear limiting block 2-1. This embodiment improves the strength of the fixing block 1-2 and can be applied to cables with greater weight. In this embodiment, soft rubber pads 8 are provided on the surfaces of the first arc-shaped clamping surface 1-5, the second arc-shaped clamping surface 2-2, the chamfer 2-3, and the flared opening 1-4 to increase the friction with the cable and prevent scratching the cable.

[0028] 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 locking pole clamp suitable for use with cables of different diameters, comprising: The clamp body (1), the movable clamp block (2) for clamping the cable and slidingly cooperating with the clamp body (1), and the driving component for driving the movable clamp block (2) to slide are characterized in that: the clamp body (1) is provided with a fixed clamp block (1-2), the fixed clamp block (1-2) is provided with a first arc-shaped clamping surface (1-5) in contact with the cable, the movable clamp block (2) is provided with a second arc-shaped clamping surface (2-2) in contact with the cable, the clamp body (1) is provided with a groove or plane that is slidably connected to the movable clamp block (2), and a limiting mechanism for clamping cables of any diameter is provided between the fixed clamp block (1-2) and the movable clamp block (2).

2. The locking-pole cable clamp suitable for cables of different diameters according to claim 1, characterized in that: The limiting mechanism includes a limiting block (2-1) disposed on the movable clamping block (2) and a limiting groove (1-1) correspondingly opened on the fixed clamping block (1-2).

3. The locking barrel cable clamp suitable for cables of different diameters as claimed in claim 2, wherein: The limiting block (2-1) is a protrusion located on the front or both sides of the movable clamping block (2), with the front protrusion being higher than the rear protrusion.

4. The locking-pole cable clamp suitable for cables of different diameters according to claim 1, wherein: The clamp body (1) is provided with a sliding inclined surface (1-6) that is slidably connected to the movable clamp block (2). The sliding inclined surface (1-6) forms an angle with the vertical direction, and the angle ranges from 10° to 45°.

5. The locking-pole cable clamp suitable for cables of different diameters according to claim 1, wherein: The cable extension directions on both sides of the second arc-shaped clamping surface (2-2) are provided with chamfers (2-3), and the cable extension directions on both sides of the first arc-shaped clamping surface (1-5) are provided with flared mouths (1-4) with the openings widening outward.

6. The locking-pole cable clamp suitable for cables of different diameters according to claim 1, wherein: The first arc-shaped clamping surface (1-5) and the second arc-shaped clamping surface (2-2) are provided with protruding ridges to increase the friction force on the cable.

7. The locking rod clamp applicable to cables of different diameters as described in claim 1, characterized in that: The first arc-shaped clamping surface (1-5), the second arc-shaped clamping surface (2-2), the chamfer (2-3) and the flared mouth (1-4) are provided with soft rubber pads (8).

8. The locking barrel cable clamp of claim 1 adapted for use with cables of different diameters, wherein: The driving component includes a screw (3) threadedly connected to the clamp body (1) and an operating part disposed at the lower end of the screw (3). The top of the screw (3) is rotatably connected to the movable clamp (2).

9. The locking barrel cable grip adapted for use with cables of different diameters of claim 8, wherein: The operating part is a torque cap (4) located at the bottom of the screw (3).

10. The locking-pole cable clamp suitable for cables of different diameters according to claim 9, characterized in that: The head of the torque cap (4) is fitted with a detachable twisting ring (5).

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