A bend-resistant insulated electrical cable

Abstract

This utility model discloses a bend-resistant insulated cable, comprising: a conductor, an insulation layer, a first shielding layer, a bend-resistant filler, a cable protection mechanism, and a bend assist mechanism; the insulation layer is disposed on the outer circumference of the conductor; the first shielding layer is disposed on the outer circumference of the insulation layer; the bend-resistant filler is disposed on the outer circumference of the first shielding layer; the cable protection mechanism is disposed on the outer circumference of the bend-resistant filler; and the bend assist mechanism is disposed on the outer circumference of the cable protection mechanism. This bend-resistant insulated cable greatly improves the cable's environmental tolerance through the cable protection mechanism, making it suitable for extremely harsh environments; furthermore, the bend assist mechanism guides, supports, and limits the cable's bending radius, effectively preventing excessive bending and damage, and significantly extending the cable's lifespan.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, and in particular to a bend-resistant insulated cable. Background Technology

[0002] Wires and cables are wire products used to transmit electrical (magnetic) energy, information, and realize the conversion of electromagnetic energy. In a broad sense, wires and cables are also simply referred to as cables. In a narrow sense, cables refer to insulated cables, which can be defined as: an assembly consisting of one or more insulated conductors, and their respective possible coverings, overall protective layers, and outer sheaths. Cables may also have additional uninsulated conductors.

[0003] The prior art patent document CN217933234U provides a bend-resistant insulated cable. This utility model discloses a bend-resistant cable, including a cable body and an bend-resistant mechanism. The bend-resistant mechanism is sleeved on the cable body. The cable body includes an outer insulating sheath, at least three sets of inner insulating sheaths, and at least three sets of copper cores. The at least three sets of inner insulating sheaths are disposed inside the outer insulating sheath, and the copper cores are respectively disposed inside the inner insulating sheaths. Three sets of arc-shaped plastic blocks are equidistantly bonded to one end of the inner wall of the outer insulating sheath. When the cable body bends, the plastic springs can limit the bending angle of the cable body, thereby protecting the copper cores and preventing them from being broken. The annular plastic blocks and stainless steel springs included in the bend-resistant mechanism can generate resistance, preventing excessive bending of the cable body and further protecting the cable body. When the connection between the cable body and the electronic equipment is damaged, the operator can move the bend-resistant mechanism to facilitate protection of other parts of the cable body.

[0004] Although the device has many beneficial effects, the following problems still exist: This type of anti-bend insulated cable has poor flexibility and bending performance, and the cable is prone to breakage and damage during bending. More effective waterproof, moisture-proof and high-temperature resistance performance is required in some extremely harsh environments.

[0005] Secondly, without effective bending aids, prefabricated power cables are not always laid in a straight line. Sometimes, when encountering bends, the cables need to be bent according to the site conditions. Utility Model Content

[0006] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0007] 1. Technical problem to be solved: This type of bend-resistant insulated cable has poor flexibility and bending performance, and the cable is prone to breakage during bending. More effective waterproof, moisture-proof and high-temperature resistance is required in some extreme and harsh environments.

[0008] Secondly, without effective bending aids, prefabricated power cables are not always laid in a straight line. Sometimes, when encountering bends, the cables need to be bent according to the site conditions.

[0009] 2. Technical Solution: To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: wire core, insulation layer, first shielding layer, bend-resistant filler, cable protection mechanism and bending auxiliary mechanism; An insulating layer is disposed on the outer circumference of the wire core; A first shielding layer is disposed on the outer circumferential wall of the insulating layer; A flexural filler is disposed on the outer circumferential wall of the first shielding layer; Cable protection mechanism, wherein the cable protection mechanism is disposed on the outer circumferential wall of the bend-resistant filler; A bending auxiliary mechanism is disposed on the outer circumference of the cable protection mechanism.

[0010] As a preferred embodiment of the present invention, the cable protection mechanism includes a high-temperature resistant layer, which is disposed on the outer circumferential wall of the bend-resistant filler. A first silicone rubber layer is disposed on the outer circumferential wall of the high-temperature resistant layer; A Kevlar fiber layer is disposed on the outer circumferential wall of the first silicone rubber layer; A second silicone rubber layer is disposed on the outer circumferential wall of the Kevlar fiber layer; Nylon mesh, wherein the nylon mesh layer is disposed on the outer circumferential wall of the second silicone rubber layer; The second shielding layer is disposed on the outer circumference of the nylon mesh layer.

[0011] As a preferred embodiment of the bend-resistant insulated cable of this utility model, the bending auxiliary mechanism includes: The first retaining ring is disposed at one end of the outer circumferential wall of the cable protection mechanism; The second retaining ring is disposed at the other end of the outer circumferential wall of the cable protection mechanism; Multiple fastening bolts are disposed on the outer circumferential wall of the first and second retaining rings; Multiple first support arms are disposed on the outer circumferential wall of the first retaining ring; Multiple second support arms are disposed on the outer circumferential wall of the second retaining ring; A pivot is provided at the connection point between the first support arm and the second support arm; Diagonal bracing rods are installed at the upper ends of the first and second support arms.

[0012] As a preferred embodiment of the anti-bending insulated cable of this utility model, the support arm further includes: a limiting hole, which is disposed at the upper end of the first support arm; A rotating groove is provided at the upper end of the second support arm.

[0013] As a preferred embodiment of the anti-bending insulated cable of this utility model, the diagonal brace further includes: a limiting buckle, which is disposed at the lower left end of the diagonal brace and connected to the first support arm; A rotating wheel is located at the lower right end of the diagonal brace and connected to the two support arms.

[0014] As a preferred embodiment of the anti-bending insulated cable of this utility model, the cable protection mechanism further includes: a waterproof layer, which is disposed on the outer circumferential wall of the second shielding layer; A protective layer is disposed on the outer circumference of the waterproof layer.

[0015] 3. Beneficial effects: Compared with the prior art, the beneficial effects of this utility model are: The cable protection mechanism features a gear-shaped high-temperature resistant layer on the inner circumference, typically made of high-temperature resistant materials such as mica tape. This layer is fitted onto the outer circumference of the cable, ensuring that the internal cable can still function normally in high-temperature environments. A mesh-like Kevlar fiber layer is fitted onto the outer circumference of the first silicone rubber layer to increase tensile strength, while a mesh-like nylon mesh layer is fitted onto the outer circumference of the second silicone rubber layer to prevent wear and cuts. This multi-layered protective structure allows the cable to adapt to some extremely harsh working environments.

[0016] Secondly, the bending assist mechanism is a mechanical device, not part of the cable. It is installed in the bending area of ​​the cable and forms a stable triangular structure through the support arm and diagonal brace at the upper end of the clasp. This structure is used to guide, support, and limit the bending radius of the cable, preventing it from being damaged by excessive bending. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of the anti-bending insulated cable of this utility model; Figure 2 This invention relates to an anti-bending insulated cable. Figure 3 This utility model is intended to provide a cable protection mechanism for anti-bending insulated cables. Figure 4 This utility model relates to an anti-bending insulated cable bending auxiliary mechanism. Figure 5 This invention relates to a bend-resistant insulated cable diagonal brace. The following are the labeling instructions in the diagram: 1. Core wire; 2. Insulation layer; 3. First shielding layer; 4. Bending-resistant filler; 100. Cable protection mechanism; 101. High-temperature resistant layer; 102. First silicone rubber layer; 103. Kevlar fiber layer; 104. Second silicone rubber layer; 105. Nylon mesh layer; 106. Second shielding layer; 107. Waterproof layer; 108. Protective layer; 200. Bending auxiliary mechanism; 201. First retaining ring; 202. Second retaining ring; 203. First support arm; 204. Rotating shaft; 205. Diagonal brace; 206. Fastening bolt; 207. Limiting hole; 208. Rotating groove; 209. Second support arm; 210. Limiting buckle; 211. Rotating wheel. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0020] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0021] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0023] This utility model provides an overall structural schematic diagram of an embodiment of an anti-bend insulated cable, including: Please see Figures 1-5 The present embodiment of a bend-resistant insulated cable includes: a conductor 1, an insulation layer 2, a first shielding layer 3, a bend-resistant filler 4, a cable protection mechanism 100, and a bend-assisted mechanism 200; the insulation layer 2 is a material that wraps around the conductor 1, and commonly used materials include polyvinyl chloride and fluoroplastics, which are used to prevent current leakage. The first shielding layer 3 is a material wrapped around the outside of the insulating layer 2, usually consisting of woven copper mesh or aluminum foil wrapping, and is mainly used to shield the internal electric and magnetic fields. The flexural filler 4 fills the gaps between the cables inside the high-temperature resistant layer 101. It is usually made of thermoplastic polyurethane elastomer rubber. Its main function is to ensure that the cable structure does not deform when bent, protect the core 1 from compression, and enhance the overall tensile and torsional resistance.

[0024] It is worth noting that, in order to protect the cable, specifically, the high-temperature resistant layer 101 is wrapped around the outer wall of the circumference of the bending filler 4, which is usually made of mica-woven material or special high-temperature resistant plastics such as polytetrafluoroethylene, to ensure that the internal cable can still work normally in high-temperature environments. The inner ring of the first silicone rubber layer 102 is fitted around the outer circumference of the high-temperature resistant layer 101, mainly providing excellent cushioning and bending performance; Kevlar fiber layer 103 is fitted on the outer circumference of the first silicone rubber layer 102. This layer is specifically designed to withstand huge tensile forces and prevent the cable from being pulled apart during movement and dragging. The inner ring of the second silicone rubber layer 104 is fitted around the outer circumference of the Kevlar fiber layer 103, providing cushioning and sealing again. The nylon mesh layer 105 is fitted onto the outer circumference of the second silicone rubber layer 104. The nylon mesh layer 105 has good wear resistance and a certain strength, protecting the internal structure from mechanical wear and cutting. The second shielding layer 106 is fitted onto the outer circumference of the nylon mesh layer 105, providing double electromagnetic shielding protection; The waterproof layer 107 is fitted onto the outer circumference of the second shielding layer 106 and is usually made of materials such as waterproof tape to ensure that the cable has good waterproof and moisture-proof performance in humid or even underwater environments. The protective layer 108 is the outermost layer covering the entire cable protection mechanism 100. It is in direct contact with the outside world and is usually made of materials with excellent wear resistance, such as polyurethane or neoprene rubber, which have properties such as oil resistance, chemical corrosion resistance, wear resistance, and weather resistance.

[0025] Next, in order to assist in bending the cable, specifically, the first retaining ring 201 is divided into upper and lower halves, which are fixed to the left end of the cable protection mechanism 100 by fastening bolts 206, and are used to clamp and fix the cable. The first retaining ring 201 consists of two halves, upper and lower, which are fixed to the right end of the cable protection mechanism 100 by fastening bolts 206, and are used to clamp and fix the cable. The second retaining ring 202 consists of two halves, upper and lower, which are fixed to the right end of the cable protection mechanism 100 by fastening bolts 206 and are used to clamp and fix the cable. Multiple fastening bolts 206 are inserted into the outer circumference of the joint between the upper and lower halves of the first retaining ring 201 and the outer circumference of the joint between the upper and lower halves of the second retaining ring 202. Multiple first support arms 203 are welded to the first retaining ring 201 and the upper end of the first retaining ring 201; Multiple second support arms 209 are welded to the first retaining ring 201 and the lower end of the first retaining ring 201 are rotatably connected to the second support arms 209 via a rotating shaft 204; The rotating shaft 204 is rotatably connected to the second support arm 209 by welding the first support arm 203; Subsequently, in order to adjust the bending auxiliary mechanism 200, specifically, the limiting hole 207 is opened at the upper end of the first support arm 203; The swivel 208 is located at the upper end of the second support arm 209; Next, in order to limit the diagonal brace 205, specifically, the limiting buckle 210 is welded to the lower left end of the diagonal brace 205, and the diagonal brace 205 is adjusted by inserting the limiting holes 207 at different positions; The rotating wheel 211 is inserted into the right end of the diagonal brace 205 via a shaft provided at the right end of the diagonal brace 205. The right end of the diagonal brace 205 is provided with a shaft, through which a rotating wheel 211 is inserted, and then the rotating wheel 211 is rotatably connected to the rotating groove 208. When the limit buckle 210 is inserted into the limit groove, it can form a stable triangular structure with the support arm to share the rebound force generated when the cable bends.

[0026] Combination Figures 1-5 The specific usage process of the anti-bending insulated cable of this embodiment is as follows: 1. First, the cable is sleeved in the cable protection mechanism 100, and then the bend-resistant filler 4 is filled into the gap inside it. 2. When cable protection is required, the high-temperature resistant layer 101, the first silicone rubber layer 102, the Kevlar fiber layer 103, the second silicone rubber layer 104, the nylon mesh layer 105, the second shielding layer 106, the waterproof layer 107, and the protective layer 108 are sequentially applied to the outer circumference of the cable, which can greatly improve the mechanical and environmental resistance of the cable. 3. When bending the cable, firstly, the first retaining ring 201 and the second retaining ring 202 are respectively fitted onto the outer circumference of the cable protection mechanism 100. The limiting buckle 210 at the lower end of the diagonal brace 205 is inserted into the limiting hole 207, so that the first support arm 203 and the second support arm 209 and the diagonal brace 205 form a stable triangular structure, which can support and limit the bending radius of the cable and prevent it from being damaged by excessive bending.

[0027] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A bend-resistant insulated cable, characterized in that, It includes: wire core (1), insulation layer (2), first shielding layer (3), bending resistant filler (4), cable protection mechanism (100) and bending auxiliary mechanism (200); Insulation layer (2), the insulation layer (2) is disposed on the outer circumference of the wire core (1); The first shielding layer (3) is disposed on the outer circumferential wall of the insulating layer (2); A flexural filler (4) is disposed on the outer circumferential wall of the first shielding layer (3); A cable protection mechanism (100) is disposed on the outer circumferential wall of the bend-resistant filler (4); A bending auxiliary mechanism (200) is disposed on the outer circumference of the cable protection mechanism (100).

2. The bend-resistant insulated cable according to claim 1, characterized in that, The cable protection mechanism (100) includes a high-temperature resistant layer (101), which is disposed on the outer circumferential wall of the bending filler (4); A first silicone rubber layer (102) is disposed on the outer circumferential wall of the high-temperature resistant layer (101); A Kevlar fiber layer (103) is disposed on the outer circumferential wall of the first silicone rubber layer (102); The second silicone rubber layer (104) is disposed on the outer circumferential wall of the Kevlar fiber layer (103); A nylon mesh layer (105) is disposed on the outer circumferential wall of the second silicone rubber layer (104); The second shielding layer (106) is disposed on the outer circumferential wall of the nylon mesh layer (105).

3. The bend-resistant insulated cable according to claim 2, characterized in that, The bending assist mechanism (200) includes: The first retaining ring (201) is disposed at one end of the outer circumferential wall of the cable protection mechanism (100); The second retaining ring (202) is disposed at the other end of the outer circumference of the cable protection mechanism (100); Multiple fastening bolts (206) are provided on the outer circumferential wall of the first retaining ring (201) and the second retaining ring (202); Multiple first support arms (203) are disposed on the outer circumferential wall of the first retaining ring (201); Multiple second support arms (209) are disposed on the outer circumferential wall of the second retaining ring (202); A rotating shaft (204) is provided at the connection point between the first support arm (203) and the second support arm (209); Diagonal brace (205), which is disposed on the upper end of the first support arm (203) and the second support arm (209).

4. The bend-resistant insulated cable according to claim 3, characterized in that, The support arm further includes a limiting hole (207), which is disposed at the upper end of the first support arm (203); Rotary groove (208) is provided on the upper end of the second support arm (209).

5. The bend-resistant insulated cable according to claim 4, characterized in that, The diagonal brace (205) also includes a limiting buckle (210), which is located at the lower left end of the diagonal brace (205) and connected to the first support arm (203). A rotating wheel (211) is located at the lower right end of the diagonal brace (205) and connected to the two support arms (209).

6. The bend-resistant insulated cable according to claim 5, characterized in that, The cable protection mechanism (100) also includes: A waterproof layer (107) is disposed on the outer circumferential wall of the second shielding layer (106); A protective layer (108) is disposed on the outer circumference of the waterproof layer (107).

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