Anti-bending cable
By introducing buffer protective sleeves, support layers, outer flexure cores and inner flexure cores into the cables, steel cores or aramid fibers and polyurethane composites, the problem of cable breaking when bending is achieved, and stronger resistance is achieved Bending performance and longer service life.
Patent Information
- Application Number
- CN202420843396.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-23
AI Technical Summary
Existing cables are prone to breakage and damage when frequently changing positions, bending or folding, which affects transmission capabilities and insufficient bending resistance.
A bending-resistant cable is designed, made of steel core or aramid fiber composite material by introducing a buffering sheath, support layer, outer bending core and inner bending core into the cable, combining transition buffer layer and protection Protruding, sharing bending pressure layer by layer, enhancing bending resistance.
It significantly improves the bending resistance of the cable, prevents breakage and damage, ensures safety and reliability, and extends service life. At the same time, the material is easy to obtain, the cost is low, and the structure is beautiful and firm.
Smart Images
Figure CN222145852U_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] Cables are wire products used to transmit electrical energy, electrical signals or realize electromagnetic energy conversion. They are usually composed of multiple cable cores and an insulating sheath covering the cable cores.
[0003] In some places where the position needs to be changed frequently, bent or folded frequently, the cable is easily broken and damaged due to long-term bending, which in turn affects the normal transmission capacity of the cable. The bending resistance of ordinary cables is average, and a new bending-resistant cable needs to be designed to enhance the bending resistance of the cable. Utility Model Content
[0004] In view of the above-mentioned shortcomings that currently exist, the utility model provides a bending-resistant cable, which has good bending resistance, is not easy to break or damage, is safe and reliable, and has a long service life.
[0005] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:
[0006] The bend-resistant cable comprises, from the outside to the inside, a buffer protective sleeve, an outer insulating layer, and a cable core. A buffer body is arranged inside the buffer protective sleeve. The bend-resistant cable also comprises a supporting layer, an outer bend-resistant core, a protective layer, and an inner bend-resistant core. The supporting layer is arranged between the outer insulating layer and the protective layer. The outer bend-resistant core is evenly distributed in the supporting layer. The cable core and the inner bend-resistant core are both arranged in the protective layer. The cable cores are evenly distributed around the inner bend-resistant core.
[0007] According to one aspect of the utility model, the inner anti-bending core and the outer anti-bending core are both steel cores.
[0008] According to one aspect of the utility model, the inner anti-bending core and the outer anti-bending core are both made of aramid fiber and polyurethane composite material.
[0009] According to one aspect of the utility model, the bend-resistant cable further includes a transition buffer layer, and the transition buffer layer is arranged between the support layer and the protective layer.
[0010] According to one aspect of the present invention, the transition buffer layer is made of acrylic material.
[0011] According to one aspect of the utility model, the buffer protective sleeve is provided with a plurality of protective protrusions evenly spaced in the circumferential direction, and the buffer body is arranged inside the protective protrusions.
[0012] According to one aspect of the utility model, the buffer body is made of nylon or rubber material.
[0013] According to one aspect of the utility model, the support layer is a silicone rubber layer.
[0014] According to one aspect of the utility model, the protective layer is made of nylon fiber.
[0015] According to one aspect of the utility model, there are six groups of outer bending-resistant cores, which are equidistantly distributed in the circumferential direction.
[0016] Advantages of the implementation of the utility model: when the cable is bent, the buffer protective sleeve with a buffer body will first buffer and share part of the pressure, then the outer anti-bending core will play an anti-bending effect, and finally the inner anti-bending core will further resist bending; in this way, the anti-bending cable has stronger anti-bending ability, is not easy to break or damage, is safe and reliable, and has a long service life. By using steel cores for both the inner and outer anti-bending cores, the anti-bending strength of the cable can be guaranteed. By using aramid fiber and polyurethane composite materials for both the inner and outer anti-bending cores, the anti-bending performance of the cable can be better, and it has the advantages of high strength and light weight. By evenly arranging a number of protective protrusions on the circumference of the buffer protective sleeve, the cable can be prevented from being cut and worn, and the structure is more beautiful and firm. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 It is a structural schematic diagram of the utility model.
[0019] The names corresponding to the serial numbers in the figure are as follows:
[0020] 1. Buffer protective sleeve; 2. Outer insulation layer; 3. Support layer; 4. Transition buffer layer; 5. Protective layer; 6. Cable core; 7. Inner anti-bending core; 8. Buffer body; 9. Outer anti-bending core; 10. Protective protrusion. DETAILED DESCRIPTION
[0021] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying 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 to the utility model.
[0022] Embodiment 1
[0023] like Figure 1 As shown, the bending-resistant cable includes, from outside to inside, a buffer protective sleeve 1, an outer insulating layer 2, a supporting layer 3, a transition buffer layer 4, a protective layer 5, a cable core 6, and an inner bending-resistant core 7, wherein a buffer body 8 is arranged inside the buffer protective sleeve 1, and an outer bending-resistant core 9 is arranged inside the supporting layer 3. The buffer protective sleeve 1 is made of polytetrafluoroethylene or polyvinyl chloride, and the buffer body 8 is made of nylon or rubber material, which is evenly distributed in the buffer protective sleeve 1 in the circumferential direction. The two are used to protect the cable and play the role of resisting the buffering external pressure at the initial time. The outer insulating layer 2 is used for cable insulation and is made of cross-linked polyvinyl chloride material. The supporting layer 3 is a silicone rubber layer with high strength, and six groups of outer bending-resistant cores 9 are evenly installed in the inner circumferential direction. The transition buffer layer 4 is used for the transition connection between the supporting layer 3 and the protective layer 5, and at the same time has a certain buffering effect on the external pressure. The transition buffer layer 4 is made of acrylic material. The protective layer 5 is made of nylon fiber and is used for insulation protection of the inside of the cable; three groups of cable cores 6 and one group of inner bending-resistant core 7 are installed in the protective layer 5. The cable core 6 is composed of a cable conductor and an insulating shielding layer and is a conductive body. The inner bending-resistant core 7 is located at the center of the entire cable, and three groups of cable cores 6 are evenly distributed around the inner bending-resistant core 7.
[0024] In this embodiment, the inner bending-resistant core 7 and the outer bending-resistant core 9 are both steel cores, which can ensure the bending strength of the cable.
[0025] In this embodiment, a plurality of protective protrusions 10 are evenly spaced around the buffer protective sleeve 1, and the two are integrated. The materials are both made of polytetrafluoroethylene or polyvinyl chloride, which ensures that the cable has good wear resistance and corrosion resistance, increases the service life of the cable, and prevents the cable from being cut and worn; the buffer body 8 is arranged in the protective protrusion 10. The protective protrusion 10 is in the shape of an isosceles trapezoid. By providing the protective protrusion 10, the entire cable is in the shape of a "spline", and the structure is both beautiful and firm.
[0026] In this embodiment, the buffer protection sleeve 1, the outer insulating layer 2, the support layer 3, the transition buffer layer 4, the protective layer 5, and the inner anti-bending core 7 are concentrically arranged.
[0027] In practical applications, the buffer protective sleeve 1, the protective protrusion 10, the buffer body 8, the outer insulating layer 2, and the cable core 6 are all existing technologies and will not be described in detail.
[0028] The working principle of this embodiment is as follows: when the cable is bent, the buffer protection sleeve 1 with the buffer body 8 first buffers and shares part of the pressure, then the outer anti-bending core 9 has an anti-bending effect, and finally the inner anti-bending core 7 further resists bending.
[0029] The beneficial effect of this embodiment is that by providing the buffer protection sleeve 1, the buffer body 8, the outer bending-resistant core 9, and the inner bending-resistant core 7 to resist bending, the bending-resistant cable has a stronger bending resistance, is not easy to break or damage, is safe and reliable, and has a long service life. By using steel cores for both the inner bending-resistant core 7 and the outer bending-resistant core 9, the bending strength of the cable can be guaranteed.
[0030] Embodiment 2
[0031] The difference between this embodiment and the first embodiment is that the inner anti-bending core 7 and the outer anti-bending core 9 are both made of aramid fiber and polyurethane composite material.
[0032] In this embodiment, the inner bending-resistant core 7 and the outer bending-resistant core 9 are both made of a plurality of aramid fibers twisted and hot-melt-bonded with thermoplastic polyurethane resin. Thus, compared with the steel core, the cable has higher bending strength, better toughness, lighter weight and better comprehensive performance.
[0033] The working principle of this embodiment is as follows: when the cable is bent, the buffer protection sleeve 1 with the buffer body 8 first buffers and shares part of the pressure, then the outer anti-bending core 9 has an anti-bending effect, and finally the inner anti-bending core 7 further resists bending.
[0034] The beneficial effect of this embodiment is that by providing the buffer protective sleeve 1, the buffer body 8, the outer anti-bending core 9, and the inner anti-bending core 7 to resist bending, the anti-bending cable has a stronger anti-bending ability, is not easy to break or damage, is safe and reliable, and has a long service life. By making the inner anti-bending core 7 and the outer anti-bending core 9 both of aramid fiber and polyurethane composite material, the anti-bending performance of the cable can be improved, and it has the advantages of high strength and light weight.
[0035] Advantages of the utility model:
[0036] 1. Good bending resistance, not easy to break or damage, safe and reliable, long service life;
[0037] 2. Materials are easily available and cost-effective;
[0038] 3. The structure is beautiful and firm.
[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.
Claims
1. A bend-resistant cable, comprising, from outside to inside, a buffer protective sleeve (1), an outer insulating layer (2), and a cable core (6), wherein a buffer body (8) is provided inside the buffer protective sleeve (1). It is characterized in that The bend-resistant cable further comprises a support layer (3), an outer bend-resistant core (9), a protective layer (5), and an inner bend-resistant core (7); the support layer (3) is arranged between the outer insulating layer (2) and the protective layer (5); the outer bend-resistant core (9) is evenly distributed in the support layer (3); the cable core (6) and the inner bend-resistant core (7) are both arranged in the protective layer (5); and the cable core (6) is evenly distributed on the periphery of the inner bend-resistant core (7).
2. The bend-resistant cable according to claim 1, It is characterized in that The inner bending-resistant core (7) and the outer bending-resistant core (9) are both steel cores.
3. The bend-resistant cable according to claim 1, It is characterized in that The inner anti-bending core (7) and the outer anti-bending core (9) are both made of aramid fiber and polyurethane composite material.
4. The bend-resistant cable according to claim 1, It is characterized in that The bending-resistant cable further comprises a transition buffer layer (4), wherein the transition buffer layer (4) is arranged between the supporting layer (3) and the protective layer (5).
5. The bend-resistant cable according to claim 4, It is characterized in that The transition buffer layer (4) is made of acrylic acid ester material.
6. The bend-resistant cable according to claim 4, It is characterized in that The buffer protection sleeve (1) is provided with a plurality of protective protrusions (10) at even intervals in the circumferential direction, and the buffer body (8) is arranged inside the protective protrusions (10).
7. The bend-resistant cable according to claim 6, It is characterized in that The buffer body (8) is made of nylon or rubber material.
8. The bend-resistant cable according to claim 1, It is characterized in that The supporting layer (3) is a silicone rubber layer.
9. The bend-resistant cable according to claim 7, It is characterized in that The protective layer (5) is made of nylon fiber.
10. The bend-resistant cable according to claim 9, It is characterized in that There are six groups of the outer bending-resistant cores (9), which are equidistantly distributed in the circumferential direction.