High-resilience fatigue-resistant spiral cable
The high-resilience fatigue-resistant spiral cable addresses the issues of weak resilience and fatigue in existing cables by employing an elastic core, wire cores, and protective layers, achieving stable elastic force and improved durability.
Patent Information
- Application Number
- CN202421636901.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-07-11
AI Technical Summary
Current spiral cables exhibit weak resilience and fatigue resistance, leading to poor rebound ability and a gradual weakening of elastic force, resulting in a suboptimal user experience.
A high-resilience fatigue-resistant spiral cable design featuring an elastic core surrounded by multiple wire cores, a reinforcement layer, and an outer protective layer, with specific materials like ethylene propylene rubber and chloroprene rubber used for enhanced durability and elasticity.
The design provides stable elastic force and improved fatigue resistance, ensuring high resilience and maintaining user experience over long-term use, with enhanced mechanical strength and protection against wear.
Smart Images
Figure CN222260661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power cables, in particular to a high-resilience fatigue-resistant spiral cable. Background Art
[0002] Spiral cable, also known as spring cable, slingshot wire, spring wire, coiled wire or telescopic wire, is a rope-like wire cable made of one or several groups of insulated wires twisted together. This cable is wound and hot processed, and finally cooled to form a spiral state, which has the characteristics of retractability. Spiral cables are used in almost all industries, including but not limited to communications, medical technology, electric locomotive industry, mechanical engineering and lighting industry. However, the current spiral cables have weak resilience and fatigue resistance, poor rebound ability, and the elastic force is easy to gradually weaken, resulting in poor user experience. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a high-resilience and fatigue-resistant spiral cable, which has high resilience and fatigue resistance and good use experience.
[0004] According to the embodiment of the utility model, the high-resilience fatigue-resistant spiral cable includes an elastic core, a wire core, a reinforcement layer and an outer protective layer. The wire core is arranged along the extension direction of the elastic core, and the wire core is provided with multiple wire cores, and the multiple wire cores are arranged around the outer peripheral side of the elastic core; the reinforcement layer is arranged around the outer peripheral side of the multiple wire cores; the outer protective layer is arranged on the outer peripheral side of the reinforcement layer.
[0005] The high-resilience fatigue-resistant spiral cable according to the embodiment of the utility model has at least the following beneficial effects: the wire core is arranged along the extension direction of the elastic core, and there are multiple wire cores, and the multiple wire cores are arranged around the outer peripheral side of the elastic core; the reinforcement layer is arranged around the outer peripheral side of the multiple wire cores; the outer sheath is arranged on the outer peripheral side of the reinforcement layer. Through the above arrangement, the elastic core is located at the center of the high-resilience fatigue-resistant spiral cable, and can evenly provide elastic force to the entire high-resilience fatigue-resistant spiral cable, making it have high resilience. At the same time, the fatigue resistance of the elastic core is good, the elastic force remains stable during long-term use, and the user experience is good.
[0006] According to an embodiment of the utility model, the elastic core includes an elastic steel wire rope and an anti-wear layer, and the anti-wear layer is coated on the outer peripheral side of the elastic steel wire rope.
[0007] According to an embodiment of the utility model, the anti-wear layer is made of ethylene propylene rubber.
[0008] According to an embodiment of the present invention, a plurality of the wire cores are evenly arranged around the outer circumference of the elastic core.
[0009] According to an embodiment of the present invention, the outer diameter of the elastic core is d 1 , the outer diameter of the wire core is d 2 , satisfy: d 1 ≤d 2 .
[0010] According to an embodiment of the utility model, it also includes a filling layer, and the filling layer is arranged in the gap formed by the elastic core, the reinforcement layer and the plurality of wire cores.
[0011] According to an embodiment of the utility model, the filling layer includes a plurality of rubber filling strips arranged along the extension direction of the elastic core, and the elastic core, the plurality of wire cores and the plurality of rubber filling strips are twisted into a cable.
[0012] According to an embodiment of the utility model, the wire core includes a conductor and an insulating layer, the conductor is arranged along the extension direction of the elastic core, and the insulating layer is arranged on the outer peripheral side of the conductor.
[0013] According to an embodiment of the utility model, the insulating layer is made of ethylene propylene rubber.
[0014] According to an embodiment of the utility model, the wire core includes a conductor and an insulating layer, the conductor is arranged along the extension direction of the elastic core, the insulating layer is arranged on the outer peripheral side of the conductor, and the outer diameter of the elastic steel wire rope is d 3 , the outer diameter of the conductor is d 4 , satisfy: d 3 <d 4 .
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:
[0017] Figure 1 A side view of a high resilience and fatigue resistant spiral cable according to an embodiment of the utility model;
[0018] Figure 2 A schematic cross-sectional view of a high resilience and fatigue-resistant spiral cable according to an embodiment of the utility model;
[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0020] Reference numerals:
[0021] High resilience and fatigue resistant spiral cable 1000;
[0022] Elastic core 100; elastic steel wire rope 110; anti-wear layer 120;
[0023] Core 200; conductor 210; insulation layer 220;
[0024] Reinforcement layer 300;
[0025] Outer sheath 400;
[0026] Filling layer 500. DETAILED DESCRIPTION
[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0029] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0031] Spiral cable, also known as spring cable, slingshot wire, spring wire, coiled wire or telescopic wire, is a rope-like wire cable made of one or several groups of insulated wires twisted together. This cable is wound through a hot process and finally cooled to form a spiral state, which has the characteristics of being retractable. Spiral cables are used in almost all industries, including but not limited to communications, medical technology, electric locomotive industry, mechanical engineering and lighting industry.
[0032] This wide range of applications has led to a continued strong demand for spiral cables. China is one of the world's major spiral cable consumer markets, and its growth rate is higher than the global average. It is expected that in the next few years, with the acceleration of product development by domestic companies and the promotion of new technologies and industrial policies, China's spiral cable market will usher in new development opportunities. However, spiral cables also have certain problems. The current spiral cables have weak resilience and fatigue resistance, poor rebound ability, and the elastic force is easy to gradually weaken, resulting in a poor user experience.
[0033] To this end, the utility model proposes a high resilience fatigue resistant spiral cable 1000, specifically referring to the attached drawings of the specification Figures 1 to 3 shown.
[0034] Reference Figure 1 and Figure 2 As shown, a high resilience and fatigue-resistant spiral cable 1000 of an embodiment of the utility model comprises an elastic core 100, a wire core 200, a reinforcement layer 300 and an outer sheath 400. Among them, the wire core 200 is arranged along the extension direction of the elastic core 100. It should be noted that there are multiple wire cores 200, and the multiple wire cores 200 are all arranged along the extension direction of the elastic core 100, and the multiple wire cores 200 are arranged around the outer peripheral side of the elastic core 100. It can be understood that through the above arrangement, the elastic core 100 is surrounded by multiple wire cores 200. Refer to Figure 2 As shown, in one embodiment, the number of the wire cores 200 is five. It should be noted that the number of the wire cores 200 may also be four, six, etc., which is not specifically limited here.
[0035] In addition, continue to refer to Figure 1 and Figure 2 As shown, the reinforcement layer 300 is arranged around the outer circumference of the plurality of cores 200, and the outer sheath 400 is arranged on the outer circumference of the reinforcement layer 300. It can be understood that, through the above arrangement, the elastic core 100 is located at the center of the high-resilience fatigue-resistant spiral cable 1000, and can evenly provide elastic force to the entire high-resilience fatigue-resistant cable, making it have high resilience. At the same time, the elastic core 100 has good fatigue resistance, and the elastic force remains stable during long-term use, providing a good user experience.
[0036] In one embodiment, the reinforcement layer 300 is braided with nylon threads, and the nylon threads are braided and coated on the outer peripheral side of the plurality of wire cores 200. It can be understood that by providing the reinforcement layer 300 braided with nylon threads, the mechanical strength of the high-resilience and fatigue-resistant spiral cable 1000 is improved, and the high-resilience and fatigue-resistant spiral cable 1000 is prevented from being damaged by pulling or dragging when in use.
[0037] In one embodiment, the outer sheath 400 is made of chloroprene rubber. It should be noted that chloroprene rubber has a strong ability to maintain its shape, and can keep the high-resilience fatigue-resistant spiral cable 1000 in a spiral shape. At the same time, chloroprene rubber has good tensile strength, elongation at break, resilience and tear strength, aging resistance and heat resistance. Therefore, chloroprene rubber is used to make the outer sheath 400, which can make the high-resilience fatigue-resistant spiral cable 1000 adapt to a variety of use environments and provide a certain elastic force while stably maintaining the spiral shape.
[0038] Reference Figure 2 As shown, in one embodiment, a plurality of cores 200 are evenly arranged around the outer periphery of the elastic core 100. It can be understood that, through the above arrangement, the position distribution between the elastic core 100 and the plurality of cores 200 is more reasonable, and the elastic core 100 can evenly apply a rebound force to all places when rebounding. It should be noted that the plurality of cores 200 are evenly arranged around the outer periphery of the elastic core 100 specifically means that, in the cross section, the connecting line distance between the center points of each two adjacent cores 200 is equal, and the connecting line distance from the center point of each core 200 to the center point of the elastic core 100 is equal.
[0039] Reference Figure 2 As shown, a high-resilience and fatigue-resistant spiral cable 1000 of an embodiment of the utility model, the elastic core 100 includes an elastic steel wire rope 110 and an anti-wear layer 120. Among them, the anti-wear layer 120 is coated on the outer peripheral side of the elastic steel wire rope 110. It should be noted that the elastic steel wire rope 110 is a high-performance material with significant elasticity, which can provide elasticity well in the use of the high-resilience and fatigue-resistant spiral cable 1000. In addition, the anti-wear layer 120 can protect other components when the high-resilience and fatigue-resistant spiral cable 1000 stretches and rebounds, and prevent the elastic steel wire rope 110 from wearing the wire core 200 or other components during rebound.
[0040] In one embodiment, the anti-wear layer 120 is made of ethylene propylene rubber. It should be noted that ethylene propylene rubber is a synthetic elastomer, mainly copolymerized by ethylene and propylene, and has the characteristics of low density, high filling capacity, good electrical insulation performance, impact elasticity, low temperature performance and hot water resistance. Therefore, the anti-wear layer 120 made of ethylene propylene rubber has excellent performance, wear resistance and insulation.
[0041] Reference Figure 2 As shown, a high resilience and fatigue-resistant spiral cable 1000 according to an embodiment of the utility model, the core 200 includes a conductor 210 and an insulating layer 220. The conductor 210 is arranged along the extension direction of the elastic core 100, and the insulating layer 220 is arranged on the outer peripheral side of the conductor 210. It can be understood that the conductor 210 is used for conducting electricity, and the insulating layer 220 separates the conductor 210 from other components to play a role of protection and insulation.
[0042] In one embodiment, the conductor 210 is a Class 6 copper conductor. It is understood that the Class 6 copper conductor is a copper conductor material with high electrical conductivity, high flexibility and wide application, which can make the cable more flexible and reduce the stress of the conductor 210 when the cable is bent and stretched.
[0043] In one embodiment, the insulating layer 220 is made of EPDM, that is, the insulating layer 220 is made of EPDM and is extruded on the outer peripheral side of the conductor 210. It should be noted that EPDM is a synthetic elastomer, mainly copolymerized by ethylene and propylene, and has the characteristics of low density, high filling, good electrical insulation performance, impact elasticity, low temperature performance and hot water resistance, etc., and can play a good role in insulation and protection.
[0044] Continue to refer to Figure 2 As shown, a high resilience and fatigue-resistant spiral cable 1000 of an embodiment of the utility model further includes a filling layer 500. The filling layer 500 is arranged in the gap formed by the elastic core 100, the reinforcement layer 300 and the plurality of wire cores 200. It can be understood that, through the above arrangement, the elastic core 100 and the plurality of wire cores 200 are buffered by the filling layer 500, which reduces the extrusion force on the wire core 200 when the high resilience and fatigue-resistant spiral cable 1000 is stretched and rebounded, and avoids contact wear between the elastic core 100 and the plurality of wire cores 200, effectively extending the service life of the high resilience and fatigue-resistant spiral cable 1000.
[0045] In one embodiment, the filling layer 500 includes a plurality of rubber filling strips, and the plurality of rubber filling strips are arranged along the extension direction of the elastic core 100. It should be noted that the number of rubber filling strips can be selected independently and is not specifically limited here. It should also be noted that the elastic core 100, the plurality of wire cores 200 and the plurality of rubber filling strips are twisted into a cable. It is understandable that by twisting into a cable, the elastic core 100, the plurality of wire cores 200 and the plurality of rubber filling strips are firmly twisted together.
[0046] Reference Figure 2 and Figure 3 As shown, in a high resilience and fatigue resistant spiral cable 1000 according to an embodiment of the utility model, the outer diameter of the elastic core 100 is d 1 , the outer diameter of the core 200 is d 2 , satisfy: d 1 ≤d 2 It should be noted that, through the above configuration, the size relationship between the elastic core 100 and the wire core 200 is more reasonable, and the high resilience fatigue-resistant spiral cable 1000 has better resilience performance. 1 and the outer diameter d of the core 200 2The size of is not specifically limited, as long as it satisfies d1≤d2.
[0047] In one embodiment, the outer diameter of the elastic steel wire rope 110 is d 3 , the outer diameter of the conductor 210 is d 4 , satisfy: d 3 <d 4 It should be noted that, through the above configuration, the size relationship between the elastic steel wire rope 110 and the conductor 210 is more reasonable, and the high resilience fatigue-resistant spiral cable 1000 has better resilience performance. 3 and the outer diameter d of the conductor 210 4 The size of d 3 ≤d 4 In one embodiment, the outer diameter d of the elastic steel wire rope 110 is 3 Slightly smaller than the outer diameter d of the conductor 210 4 .
[0048] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings. Finally, it should be explained that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. High resilience and fatigue resistant spiral cable, characterized by: include: Elastic core; A wire core is arranged along the extension direction of the elastic core, and a plurality of the wire cores are provided, and the plurality of wire cores are arranged around the outer peripheral side of the elastic core; A reinforcement layer, arranged around the outer circumference of the plurality of wire cores; The outer protective layer is arranged on the outer peripheral side of the reinforcement layer.
2. The high resilience and fatigue resistant spiral cable according to claim 1, characterized in that: The elastic core comprises an elastic steel wire rope and an anti-wear layer, and the anti-wear layer is coated on the outer peripheral side of the elastic steel wire rope.
3. The high resilience and fatigue-resistant spiral cable according to claim 2, characterized in that: The anti-wear layer is made of ethylene-propylene rubber.
4. The high resilience and fatigue resistant spiral cable according to claim 1, characterized in that: The plurality of wire cores are evenly arranged around the outer periphery of the elastic core.
5. The high resilience and fatigue resistant spiral cable according to claim 1, characterized in that: The outer diameter of the elastic core is d1, and the outer diameter of the wire core is d2, satisfying: d1≤d2.
6. The high resilience and fatigue resistant spiral cable according to claim 1, characterized in that: It also includes a filling layer, which is arranged in the gap formed by the elastic core, the reinforcement layer and the plurality of wire cores.
7. The high resilience and fatigue-resistant spiral cable according to claim 6, characterized in that: The filling layer comprises a plurality of rubber filling strips arranged along the extending direction of the elastic core, and the elastic core, the plurality of wire cores and the plurality of rubber filling strips are twisted into a cable.
8. The high resilience and fatigue resistant spiral cable according to claim 1, characterized in that: The wire core comprises a conductor and an insulating layer, wherein the conductor is arranged along the extending direction of the elastic core, and the insulating layer is arranged on the outer peripheral side of the conductor.
9. The high resilience and fatigue-resistant spiral cable according to claim 8, characterized in that: The insulating layer is made of ethylene propylene rubber.
10. The high resilience and fatigue resistant spiral cable according to claim 2, characterized in that: The wire core includes a conductor and an insulating layer. The conductor is arranged along the extension direction of the elastic core. The insulating layer is arranged on the outer peripheral side of the conductor. The outer diameter of the elastic steel wire rope is d3, and the outer diameter of the conductor is d4, satisfying: d3<d4.