Bending-resistant cable
By using rubber outer layer, elastic support layer and other structures in the cable, the cable's rebound ability is enhanced, and the temperature is controlled through components such as heat absorption layer, the problem of poor rebound ability and excessive temperature when bending is solved. Achieve higher service life and better protection performance.
Patent Information
- Application Number
- CN202421308582.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-11
AI Technical Summary
Existing cables have poor rebound ability when bending, which is prone to creases and wire breakage. At the same time, too high cable temperature will also affect its service life.
Using structures such as rubber outer layer, elastic support layer, elastic rod, inner buffer layer, outer buffer layer, arc-shaped elastic bar, reinforcement rib, rubber block and heat absorption layer, through the mutual cooperation of these components, the cable rebound ability is enhanced. , and the cable temperature is controlled by the cooperation of the heat absorbing layer, the flame retardant layer and the heat dissipation layer.
Improves the automatic reset capability of the cable when bent, reduces the possibility of surface creases and internal wire breaks, while effectively controlling the cable temperature, extending service life, and providing additional fire and waterproof protection.
Smart Images
Figure CN222530072U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a bending-resistant cable. Background Art
[0002] A cable is an electrical energy or signal transmission device, usually composed of several or several groups of conductors. It can be a single conductor (called a "wire") or a combination of multiple conductors (called a "cable"). Depending on its diameter, structural complexity and purpose, it is sometimes customarily referred to as "cables". Cables have a wide range of uses, including but not limited to power transmission, signal transmission, etc. Their structure may include conductors, insulation layers, inner sheaths, outer sheaths, etc. to achieve their functions.
[0003] When laying cables, ensure that the cables are not excessively stretched or bent. Use cable clamps, brackets or supports to fix the cables in place to prevent them from moving or being damaged. Strip the insulation layer of the cables at the wiring points to expose the conductors. Use appropriate wiring terminals or wiring methods to connect the cable conductors to the wiring terminals or equipment to make the wiring firm and reliable and meet the requirements of electrical connection. Insulate the wiring points and use insulating tape or heat shrink tubing for insulation. Then check the cables for short circuits or breaks to ensure that the cables can be used normally.
[0004] However, some cables on the market currently have poor resilience, which means that the cables cannot automatically reset when bent, resulting in creases on the cable surface. Excessive force when straightening the cables may cause the wires inside the cables to break. In addition, heat is generated during cable operation. If the temperature is too high, it will affect the service life of the cable. Therefore, a bend-resistant cable is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above deficiencies, the utility model provides a bend-resistant cable, aiming to improve the problems in the prior art that the cable has poor resilience performance which makes the cable easy to deform, and the cable has excessively high temperature which affects the service life of the cable.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bend-resistant cable, comprising a rubber outer layer, an elastic supporting layer is arranged in the middle of the rubber outer layer, an elastic rod is arranged in the middle of the elastic supporting layer, three supporting grooves are arranged at equal distances on the outer end of the elastic rod, the inner sides of the three supporting grooves are all fitted with insulating layers, the inner sides of the insulating layers are all provided with inner cores, the outer ends of the elastic supporting layer and the inner core are provided with heat-absorbing layers, the inner ends of the heat-absorbing layers are both provided with arc grooves on one side of the outer end of the insulating layer, the outer end of the heat-absorbing layer is provided with a flame-retardant layer, the outer end of the flame-retardant layer is provided with a heat dissipation layer, the outer end of the heat dissipation layer is provided with a rebound mechanism, the outer end of the rebound mechanism is provided with a waterproof layer, and the outer side of the waterproof layer is fitted with the inner side of the rubber outer layer.
[0007] As a further description of the above technical solution: the rebound mechanism includes an inner buffer layer and an outer buffer layer, a filling cavity is formed between the inner buffer layer and the outer buffer layer, a plurality of arc-shaped elastic strips are arranged inside the filling cavity, the plurality of arc-shaped elastic strips are connected to each other, the outer sides of the arc-shaped elastic strips are fixedly connected to the inner side of the outer buffer layer, the inner sides of the arc-shaped elastic strips are fixedly connected to the outer side of the inner buffer layer, and reinforcing ribs are fixedly connected between the middle part of the arc-shaped elastic strip and the inner buffer layer.
[0008] As a further description of the above technical solution: the gaps between the inner buffer layer, the arc-shaped elastic strip and the reinforcing ribs are filled with rubber block 1, and the gaps between the outer buffer layer and the arc-shaped elastic strip are filled with rubber block 2.
[0009] As a further description of the above technical solution: the inner side of the inner buffer layer is in contact with the outer side of the heat dissipation layer, and the outer side of the outer buffer layer is in contact with the inner side of the waterproof layer.
[0010] As a further description of the above technical solution: the inner side of the heat absorption layer is bonded to the outer side of the elastic support layer.
[0011] As a further description of the above technical solution: the arc groove and the supporting groove form a circular hole, and the radius of the circular hole is consistent with the radius of the insulating layer.
[0012] As a further description of the above technical solution: the inner sides of the arc-shaped grooves are in contact with the outer sides of the adjacent insulating layers.
[0013] As a further description of the above technical solution: the outer side of the heat absorption layer is bonded to the inner side of the flame retardant layer, and the outer side of the flame retardant layer is bonded to the inner side of the heat dissipation layer.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, the elastic support layer, the elastic rod, the inner buffer layer, the outer buffer layer, the arc elastic strip, the reinforcing ribs, the rubber block 1 and the rubber block 2 cooperate with each other to enhance the resilience of the cable, so that the cable can automatically reset when bent, reduce the possibility of creases on the cable surface, and prevent the wires inside the cable from breaking.
[0016] 2. In the utility model, the heat generated during the operation of the cable is absorbed and dissipated through the cooperation of the heat absorption layer, the flame retardant layer and the heat dissipation layer, so as to prevent the cable from overheating and affecting its service life. The flame retardant layer can serve as an additional protective layer for the cable to prevent the cable from being quickly damaged under the direct action of high temperature or flame, thereby protecting the conductor and insulating material inside the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a three-dimensional schematic diagram of a bend-resistant cable proposed by the utility model;
[0018] Figure 2 This is a front cross-sectional view of a bend-resistant cable proposed by the utility model;
[0019] Figure 3 This is a front cross-sectional view of a rebound mechanism of a bend-resistant cable proposed by the utility model.
[0020] Legend:
[0021] 1. Rubber outer layer; 2. Elastic supporting layer; 3. Elastic rod; 4. Insulating layer; 5. Inner core; 6. Heat absorbing layer; 7. Flame retardant layer; 8. Heat dissipation layer; 9. Inner buffer layer; 10. Outer buffer layer; 11. Filling cavity; 12. Arc elastic strip; 13. Reinforcing rib; 14. Rubber block one; 15. Rubber block two; 16. Waterproof layer; 17. Support groove; 18. Arc groove. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Reference Figure 1 and Figure 2The utility model provides an embodiment: a bend-resistant cable, comprising a rubber outer layer 1, an elastic supporting layer 2 is arranged in the middle of the rubber outer layer 1, an elastic rod 3 is arranged in the middle of the elastic supporting layer 2, three supporting grooves 17 are equidistantly provided at the outer end of the elastic rod 3, an insulating layer 4 is fitted on the inner side of the three supporting grooves 17, an inner core 5 is arranged inside the insulating layer 4, a heat absorption layer 6 is arranged at the outer ends of the elastic supporting layer 2 and the inner core 5, an arc groove 18 is arranged on the inner end of the heat absorption layer 6 on one side of the outer end of the insulating layer 4, a flame retardant layer 7 is arranged at the outer end of the heat absorption layer 6, a heat dissipation layer 8 is arranged at the outer end of the flame retardant layer 7, a rebound mechanism is arranged at the outer end of the heat dissipation layer 8, a waterproof layer 16 is arranged at the outer end of the rebound mechanism, and the outer side of the waterproof layer 16 is fitted with the inner side of the rubber outer layer 1.
[0024] The insulating layer 4 protects the inner core 5, and the support groove 17 on the elastic support layer 2 and the arc groove 18 on the heat absorption layer 6 wrap the outer end of the insulating layer 4. When the insulating layer 4 and the inner core 5 are squeezed, the elasticity of the elastic support layer 2 and the elastic rod 3 will limit the bending amplitude of the insulating layer 4 and the inner core 5, and drive the cable as a whole to reset through the rebound mechanism, thereby improving the flexibility of the cable and preventing creases from appearing on the rubber outer layer 1. The cable will dissipate heat during operation, and the heat will be absorbed by the heat absorption layer 6. The heat will be transferred to the heat dissipation layer 8 through the flame retardant layer 7 and dissipated, thereby preventing the cable from overheating and affecting its service life. The flame retardant layer 7 can serve as an additional protective layer for the cable to prevent the cable from being quickly damaged under the direct action of high temperature or flame, thereby protecting the conductor and insulating material inside the cable. The waterproof layer 16 prevents moisture from entering the cable and affecting the performance of the cable. The rubber outer layer 1 protects the interior.
[0025] Reference Figure 2 and Figure 3 The rebound mechanism includes an inner buffer layer 9 and an outer buffer layer 10, a filling cavity 11 is formed between the inner buffer layer 9 and the outer buffer layer 10, a plurality of arc-shaped elastic strips 12 are arranged inside the filling cavity 11, the plurality of arc-shaped elastic strips 12 are connected to each other, the outer sides of the arc-shaped elastic strips 12 are fixedly connected to the inner sides of the outer buffer layer 10, the inner sides of the arc-shaped elastic strips 12 are fixedly connected to the outer sides of the inner buffer layer 9, a reinforcing rib 13 is fixedly connected between the middle part of the arc-shaped elastic strip 12 and the inner buffer layer 9, the gaps between the inner buffer layer 9, the arc-shaped elastic strip 12 and the reinforcing rib 13 are filled with a rubber block 14, the gaps between the outer buffer layer 10 and the arc-shaped elastic strip 12 are filled with a rubber block 2 15, the inner side of the inner buffer layer 9 is bonded to the outer side of the heat dissipation layer 8, and the outer side of the outer buffer layer 10 is bonded to the inner side of the waterproof layer 16.
[0026] When the cable is subjected to bending force, the arc-shaped elastic strip 12 and the reinforcing ribs 13 bend synchronously, and the filling cavity 11 is also filled with rubber block 14 and rubber block 2 15 as fillers, which makes the cable have better bending resistance and tensile resistance than traditional cables. When the bending force decreases, the arc-shaped elastic strip 12, the reinforcing ribs 13 drive the inner buffer layer 9 and the outer buffer layer 10 to rebound, so that the cable is reset, reducing the possibility of creases on the cable surface.
[0027] Reference Figure 1 and Figure 2 The inner side of the heat absorption layer 6 is bonded to the outer side of the elastic supporting layer 2, the arc groove 18 and the supporting groove 17 form a circular hole, the radius of the circular hole is consistent with the radius of the insulating layer 4, the inner sides of the arc grooves 18 are bonded to the outer sides of the adjacent insulating layers 4, the outer side of the heat absorption layer 6 is bonded to the inner side of the flame retardant layer 7, and the outer side of the flame retardant layer 7 is bonded to the inner side of the heat dissipation layer 8.
[0028] The support groove 17 and the arc groove 18 jointly protect the insulating layer 4, making it convenient for the elastic support layer 2 to provide support for the insulating layer 4, while also facilitating the heat absorption layer 6 to absorb heat from the inner core 5. The flame retardant layer 7 and the heat absorption layer 6 are used in close proximity to each other, which can provide more effective fire and explosion resistance.
[0029] Working principle: when the cable is bent, the elastic supporting layer 2, the elastic rod 3, the arc-shaped elastic strip 12 and the reinforcing ribs 13 are also bent synchronously. When the bending force decreases, the elastic supporting layer 2, the elastic rod 3, the arc-shaped elastic strip 12 and the reinforcing ribs 13 drive the cable to reset, reducing the possibility of creases on the surface of the rubber outer layer 1. The cable will dissipate heat during operation. The heat inside the cable is reduced through the cooperation of the heat-absorbing layer 6, the flame-retardant layer 7 and the heat-dissipating layer 8. The waterproof layer 16 prevents moisture from entering the cable and affecting the performance of the cable.
[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A bend-resistant cable, comprising a rubber outer layer (1), characterized in that: An elastic support layer (2) is arranged in the middle of the rubber outer layer (1), an elastic rod (3) is arranged in the middle of the elastic support layer (2), three support grooves (17) are arranged at equal distances on the outer end of the elastic rod (3), an insulating layer (4) is arranged in contact with the inner side of the three support grooves (17), an inner core (5) is arranged in the interior of the insulating layer (4), a heat absorption layer (6) is arranged at the outer ends of the elastic support layer (2) and the inner core (5), an arc groove (18) is arranged at the inner end of the heat absorption layer (6) on one side of the outer end of the insulating layer (4), a flame retardant layer (7) is arranged at the outer end of the flame retardant layer (7), a heat dissipation layer (8) is arranged at the outer end of the heat dissipation layer (8), a rebound mechanism is arranged at the outer end of the rebound mechanism, a waterproof layer (16) is arranged at the outer end of the waterproof layer (16), and the outer side of the waterproof layer (16) is in contact with the inner side of the rubber outer layer (1).
2. A bend-resistant cable according to claim 1, characterized in that: The rebound mechanism comprises an inner buffer layer (9) and an outer buffer layer (10), a filling cavity (11) is formed between the inner buffer layer (9) and the outer buffer layer (10), a plurality of arc-shaped elastic strips (12) are arranged inside the filling cavity (11), the plurality of arc-shaped elastic strips (12) are interconnected, the outer sides of the arc-shaped elastic strips (12) are fixedly connected to the inner side of the outer buffer layer (10), the inner sides of the arc-shaped elastic strips (12) are fixedly connected to the outer side of the inner buffer layer (9), and a reinforcing rib (13) is fixedly connected between the middle of the arc-shaped elastic strip (12) and the inner buffer layer (9).
3. A bend-resistant cable according to claim 2, characterized in that: The spaces between the inner buffer layer (9), the arc-shaped elastic strip (12) and the reinforcing rib (13) are filled with rubber block 1 (14), and the spaces between the outer buffer layer (10) and the arc-shaped elastic strip (12) are filled with rubber block 2 (15).
4. A bend-resistant cable according to claim 2, characterized in that: The inner side of the inner buffer layer (9) is bonded to the outer side of the heat dissipation layer (8), and the outer side of the outer buffer layer (10) is bonded to the inner side of the waterproof layer (16).
5. The bend-resistant cable according to claim 1, characterized in that: The inner side of the heat absorption layer (6) is bonded to the outer side of the elastic support layer (2).
6. The bend-resistant cable according to claim 1, characterized in that: The arc-shaped groove (18) and the supporting groove (17) form a circular hole, and the radius of the circular hole is consistent with the radius of the insulating layer (4).
7. The bend-resistant cable according to claim 1, characterized in that: The inner sides of the arc-shaped grooves (18) are in contact with the outer sides of the adjacent insulating layers (4).
8. The bend-resistant cable according to claim 1, characterized in that: The outer side of the heat absorption layer (6) is bonded to the inner side of the flame retardant layer (7), and the outer side of the flame retardant layer (7) is bonded to the inner side of the heat dissipation layer (8).