Bend-resistant electrical cable and bend-resistant structure

Abstract

The utility model relates to cable protection equipment technical field, concretely relates to the wire cable and anti -bending structure of anti -bending, wherein, the anti -bending structure includes the protection mechanism, and the protection mechanism mainly is connected with the length adjusting mechanism by two fixed bases and is constituted, and the fixed base both ends are equipped with fixed bolt symmetrically, and the bolt output end connects the self -adaptation clamping assembly, and this clamping assembly adopts three -layer composite structure: rigid support layer provides main clamping force, and elastic buffer layer absorbs vibration stress, and the resistance block on rubber pad ensures that cable is fixed and does not slide. The length adjusting mechanism includes fixed cylinder and movable column, and realizes the flexible adjustment of protection mechanism length through sliding fit. The utility model discloses through multilayer clamping structure and adjustable design, effectively solved the problem that traditional protection device clamping force is uneven, and cable surface is easy to damage, has the characteristics such as structural stability, installation flexibility, good protection effect.

Description

Technical Field

[0001] This utility model relates to the field of cable protection equipment technology, specifically to anti-bending wires and cables and anti-bending structures. Background Technology

[0002] In industrial automation, robotics, and mobile devices, wires and cables often need to bend or twist frequently in dynamic environments. For example, the joint movements of robotic arms and the reciprocating motion of automated production lines place high demands on the durability and reliability of cables. To address this issue, existing technologies typically add protective devices to the outside of the cable to reduce the risk of mechanical damage from bending.

[0003] The main problem with existing protective devices lies in the insufficient compatibility between their fixing structure and the cable. Specifically, traditional fixing methods often employ rigid clamping or simple fastening structures, which are difficult to adapt to the fixing requirements of cables with different diameters and can easily lead to uneven distribution of clamping force. This insufficient compatibility not only affects the fixing effect of the cable but may also damage the cable sheath due to local stress concentration, thereby affecting the cable's service life and electrical performance. Utility Model Content

[0004] This utility model provides a bend-resistant wire and cable and a bend-resistant structure, which solves the problems mentioned in the background art by using an adaptive clamping assembly: a rigid support layer, an elastic buffer layer, and a specially textured rubber pad in conjunction with an adjustable fixing mechanism.

[0005] The existing protective devices suffer from uneven clamping force and cable surface damage due to their simple structure at the fixing points.

[0006] To achieve the above objectives, the anti-bending structure includes a protective mechanism, which includes two fixed seats connected by a length adjustment mechanism, and fixing bolts are symmetrically threaded at both ends of each fixed seat.

[0007] The output end of the fixing bolt is fixedly connected to an adaptive clamping assembly, which includes a rigid support layer, an elastic buffer layer, and a rubber pad.

[0008] The rigid support layer is rigidly connected to the output end of the fixing bolt;

[0009] The elastic buffer layer covers the outside of the rigid support layer;

[0010] The rubber pad is located on the contact surface between the elastic buffer layer and the cable body. Several contact blocks are provided on its surface. The contact blocks are arranged in an array along the surface of the rubber pad to increase the contact force with the cable by increasing the elastic deformation of the rubber pad when clamping the cable.

[0011] The above technical solution employs a three-stage composite clamping structure based on the dual requirements of cable protection: secure fixation and damage prevention. The rigid support layer, as the core load-bearing frame, ensures the mechanical strength of the entire clamping structure; its absence would lead to force dispersion and failure. The elastic buffer layer, as an intermediate transition layer, absorbs and disperses clamping pressure due to its flexibility; without this buffer design, direct rigid clamping could easily damage the cable sheath. The innermost rubber pad is made of nitrile rubber, with an array of hemispherical contact blocks on its surface. These blocks are integrated with the rubber pad through a vulcanization process, forming a direct contact interface with the cable surface. When clamping the cable, the elastic deformation of the rubber pad causes the contact blocks to adapt, increasing the contact area with the cable surface. Simultaneously, the arrayed contact blocks work synergistically under pressure, creating a multi-point, evenly distributed clamping force, preventing localized stress concentration from damaging the cable surface.

[0012] Based on this, auxiliary telescopic rods are inserted on both the upper and lower sides of the fixing nail on the fixing base, and the output end of the auxiliary telescopic rods is fixedly connected to the rigid support layer.

[0013] In another technical solution, the length adjustment mechanism includes a fixed cylinder fixedly connected to one of the fixed seats, and a movable column fixedly connected to the other fixed cylinder, the movable column being movably disposed inside the fixed cylinder.

[0014] This technical solution utilizes the coordinated design of the auxiliary telescopic rod and the movable column to achieve multi-dimensional adjustment of the protective mechanism. The auxiliary telescopic rods are symmetrically distributed on both sides of the fixed pin, forming a stable linkage structure with the rigid support layer. This allows for synchronous expansion and contraction when the cable bends, avoiding deformation caused by single-point stress. Without this design, the clamping assembly is prone to stress concentration during dynamic bending. The sliding structure of the movable column within the fixed cylinder provides a simple length adjustment method. By changing the relative positions of the two, it can adapt to the needs of cables of different lengths. This sliding engagement method ensures both adjustment flexibility and maintains overall rigidity through the cylinder structure.

[0015] Additionally, a bend-resistant wire and cable is provided, comprising a cable body, wherein the aforementioned bend-resistant structure is sleeved on the outside of the cable body at the bend-resistant portion.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] A three-dimensional fixed system was constructed: a rigid support layer, an elastic buffer layer, and a rubber pad, forming a gradient protective structure from the outside in. The significance of this structural layout lies in the fact that the rigid support layer bears the main mechanical load on the outside, the elastic buffer layer in the middle facilitates stress transition, and the rubber pad on the inside ensures interface stability. The precise spatial coordination of the three layers not only achieves functional zoning but also produces effective protection through interlayer synergy. This three-dimensional structural design concept fundamentally changes the limitations of traditional single-planar protective devices, providing comprehensive dynamic protection for cables. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the protective mechanism of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the fixing base part of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 1. Cable body; 2. Protective mechanism; 3. Fixed cylinder; 4. Movable column; 5. Fixing nail; 6. Fixed seat; 7. Fixing bolt; 8. Auxiliary telescopic rod; 9. Threaded groove; 10. Hole groove; 11. Rigid support layer; 12. Elastic buffer layer; 13. Rubber pad; 14. Contact block. Detailed Implementation

[0024] 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.

[0025] To address the issues of uneven clamping force and cable surface damage caused by the simple structure of existing protective devices, this utility model provides a bend-resistant wire / cable and a bend-resistant structure. (See [reference]). Figures 1-3As shown, the cable includes a cable body 1, with a protective mechanism 2 fitted around its outer side. The protective mechanism 2 mainly includes two fixing seats 6, which are connected to each other via a length adjustment mechanism in the middle. The fixing seats 6 are made of high-strength aluminum alloy, and threaded holes are symmetrically machined at both ends for installing fixing bolts 7. This symmetrical arrangement ensures that the clamping force is evenly distributed, avoiding structural deformation caused by excessive force on one side.

[0026] like Figure 4 As shown, the output end of the fixing bolt 7 is connected to an adaptive clamping assembly, which adopts a three-layer composite structure design. The outermost rigid support layer 11 is directly connected to the fixing bolt 7 and is made of stainless steel, forming the force-bearing skeleton of the entire clamping structure. The middle elastic buffer layer 12 is made of polyurethane material and covers the outside of the rigid support layer 11. Its thickness has been optimized to balance buffering effect and structural strength. The innermost rubber pad 13 is made of nitrile rubber material, and its surface is provided with an array of hemispherical contact blocks 14. The contact blocks 14 are integrated with the rubber pad 13 through a vulcanization process, forming a direct contact interface with the cable surface. When clamping the cable, the elastic deformation of the rubber pad 13 causes the contact blocks 14 to undergo adaptive deformation, thereby increasing the contact area with the cable surface; at the same time, the array of contact blocks 14 work together under pressure to form a multi-point uniformly distributed clamping force, avoiding local stress concentration that could damage the cable surface.

[0027] Auxiliary telescopic rods 8 are also provided on the fixed base 6. These telescopic rods are arranged symmetrically, located on the upper and lower sides of the fixing bolt 7, respectively. The output end of the auxiliary telescopic rods 8 is fixedly connected to the rigid support layer 11, forming a stable support structure. Figure 2 As shown, the length adjustment mechanism consists of a fixed cylinder 3 and a movable column 4. One fixed seat 6 is fixedly connected to the fixed cylinder 3 by welding, while the other fixed seat 6 is connected to the fixed cylinder 3 via the movable column 4. The movable column 4 can slide freely inside the fixed cylinder 3, enabling multi-level adjustment of the length of the protective mechanism 2. Fixing pins 5 on the side wall of the fixed cylinder 3 can be inserted into positioning grooves on the surface of the movable column 4 to lock the adjusted length position.

[0028] The mounting base 6 has several holes and slots 10 machined on it for installing the auxiliary telescopic rod 8. The dimensions of these holes and slots 10 are reasonably designed to ensure smooth extension and retraction of the auxiliary telescopic rod 8 while providing sufficient guiding accuracy. The fixing bolts 7 are installed in the threaded slots 9 of the mounting base 6, achieving a reliable fixing effect through threaded connection.

[0029] This structural design achieves multiple protective functions: the rigid support layer 11 ensures the overall structural strength, the elastic buffer layer 12 effectively absorbs and disperses mechanical stress, and the elastic deformation of the rubber pad 13 causes the contact block 14 to undergo adaptive deformation. The symmetrical arrangement of the auxiliary telescopic rods 8 enhances the stability of the structure, and the sliding cooperation between the movable column 4 and the fixed cylinder 3 allows the entire protective mechanism 2 to adapt to installation requirements of different lengths. All components work together to form a complete and efficient cable protection system.

[0030] Working Principle: The cable body 1 is reliably fixed and protected by the protective mechanism 2. The fixing seat 6 serves as the main support structure, and the self-adaptive clamping assembly is pressed against the cable surface by fixing bolts 7. The rigid support layer 11 bears the main clamping force, the elastic buffer layer 12 absorbs vibration and impact, and the elastic deformation of the rubber pad 13 causes the contact block 14 to undergo adaptive deformation, thereby increasing the contact area with the cable surface. Simultaneously, the arrayed contact blocks 14 work together under pressure to form a multi-point uniformly distributed clamping force. The auxiliary telescopic rod 8 is connected to the rigid support layer 11, providing additional support when the cable bends and preventing structural deformation. The length adjustment mechanism adjusts the length of the protective mechanism 2 through the sliding cooperation of the fixed cylinder 3 and the movable column 4, and is locked in place by the fixing pin 5. The entire system works in concert to effectively ensure the secure fixing of the cable.

[0031] In another embodiment, a bend-resistant wire and cable is provided, which includes a cable body 1, and the cable body 1 is externally sleeved with a bend-resistant structure for the bend-resistant portion.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-bending structure, comprising a protective mechanism (2), the protective mechanism (2) comprising two fixed seats (6), the two fixed seats (6) being connected by a length adjustment mechanism, and fixed bolts (7) being symmetrically threaded at both ends of the fixed seats (6), characterized in that: The output end of the fixing bolt (7) is fixedly connected to an adaptive clamping assembly, which includes a rigid support layer (11), an elastic buffer layer (12), and a rubber pad (13). The rigid support layer (11) is rigidly connected to the output end of the fixing bolt (7); The elastic buffer layer (12) covers the outside of the rigid support layer (11); The rubber pad (13) is located on the contact surface between the elastic buffer layer (12) and the cable body (1). Several abutment blocks (14) are provided on its surface. The abutment blocks (14) are arranged in an array along the surface of the rubber pad (13) to increase the contact force between the rubber pad (13) and the cable when the cable is clamped.

2. The anti-bending structure according to claim 1, characterized in that: Auxiliary telescopic rods (8) are inserted on both the upper and lower sides of the fixing bolt (7) on the fixing base (6), and the output end of the auxiliary telescopic rods (8) is fixedly connected to the rigid support layer (11).

3. The anti-bending structure according to claim 2, characterized in that: The fixed base (6) is provided with a threaded groove (9), and the fixing bolt (7) is movably disposed in the threaded groove (9).

4. The anti-bending structure according to claim 2, characterized in that: The fixed base (6) is provided with a plurality of holes and slots (10), and the auxiliary telescopic rod (8) is inserted into the holes and slots (10).

5. The anti-bending structure according to claim 1, characterized in that: The length adjustment mechanism includes a fixed cylinder (3) fixedly connected to one of the fixed seats (6), and a movable column (4) fixedly connected to the other fixed cylinder (3), the movable column (4) being movably disposed inside the fixed cylinder (3).

6. The anti-bending structure according to claim 5, characterized in that: The fixed cylinder (3) is provided with a fixing nail (5), which penetrates the side wall of the fixed cylinder (3) and is inserted into the groove on the surface of the movable column (4) to lock the extension and retraction position of the movable column (4).

7. A bend-resistant wire and cable, comprising a cable body (1), characterized in that, The cable body (1) is externally sleeved at the anti-bending point with an anti-bending structure as described in any one of claims 1-6.

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