Cable with high tensile strength
By adopting an oblique connection design of three-row conductors and reinforcement strips in the cable, combining the inner and outer skin and braided layer, the problem of insufficient tensile strength of the existing cable is solved, and uniform force transmission and dispersion is achieved, which significantly improves the cable tensile resistance.
Patent Information
- Application Number
- CN202420796186.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-17
AI Technical Summary
When existing cables are subjected to pulling forces, the cortex mainly bears the force, resulting in uneven distribution of forces, insufficient tensile strength, and inability to effectively transmit to the conductor, resulting in low tension resistance of the cable.
Three rows of wires are used and connected with reinforcement strips to form a clamping space. The inner and outer skin and braided layer are wound by aluminum wire. The oblique setting of reinforcement strips disperses the force to the radial direction to ensure that the force is transmitted to the wire and subjected to a uniform force. Enhance the tensile resistance of the cable.
Through the oblique arrangement of the reinforcement strips and the design of the braided layer, the uniform transmission and dispersion of force on the conductor is achieved, which significantly improves the tensile strength of the cable and reduces the risk of breakage.
Smart Images
Figure CN222190316U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a high tensile strength cable. Background Art
[0002] Cables are used in a wide range of applications, including residential and commercial buildings, industry, energy transmission and distribution, and communication networks. They play an indispensable role in indoor and outdoor power supply, control signal transmission, long-distance power transmission and distribution in power grids, as well as telephone networks, Internet infrastructure, and cable TV networks. In addition, special environments such as submarine or high-temperature environments also require specific types of cables to ensure the safe transmission of power or signals. Choosing the right cable requires considering its transmission performance, environmental conditions, installation requirements, and cost. With the development of technology, the types and performance of cables are constantly improving to meet the ever-expanding application needs.
[0003] The tensile strength of the cable in the prior art is mainly reflected by the several wires therein and the cortex wrapped around the outer ring of the wires. However, since the cortex and the several wires are only connected together in the form of wrapping, that is, the friction between the two is used to share the force to reflect its tensile strength. Therefore, when the ordinary cable is subjected to a large pulling force in its length direction, the force is mainly borne by the cortex, and only a small part will be transmitted to the wire, so that the internal force of the cable is not well shared, which leads to the general tensile strength of the existing cable.
[0004] Therefore, a high tensile strength cable is proposed to solve or alleviate the above problems. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes a high tensile strength cable.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A high tensile strength cable comprises three rows of conductors and an inner skin layer wrapped around the outer side thereof, wherein the three rows of conductors are arranged in parallel, and there is a clamping space 1 and a clamping space 2 between the three rows of conductors, wherein the clamping space 1 and the clamping space 2 are respectively fixedly connected with an inclined reinforcing strip 1 and a reinforcing strip 2, and both ends of the two are fixedly connected to the inner circle of the inner skin layer.
[0008] Preferably, the first reinforcement bar and the second reinforcement bar are arranged in opposite directions, and the first reinforcement bar and the second reinforcement bar are arranged alternately in the length direction of the wire.
[0009] Preferably, the number of the first reinforcement strip and the second reinforcement strip are both several, and the several first reinforcement strips and the second reinforcement strip are evenly spaced in the length direction of the wire.
[0010] Preferably, the outer ring of the wire is wrapped with an insulating layer, and the insulating layer is made of polyvinyl chloride.
[0011] Preferably, the inner skin layer is filled with a filling layer made of polyethylene material.
[0012] Preferably, the outer circle of the inner skin layer is wound with a braided layer, the outer circle of the braided layer is fixedly connected with the outer skin layer, the braided layer is wound by aluminum wire, and both the outer skin layer and the inner skin layer are made of polyvinyl chloride.
[0013] Preferably, the first reinforcement strip and the second reinforcement strip are both made of acrylonitrile rubber.
[0014] The utility model has the following beneficial effects:
[0015] In the utility model, when the cable is subjected to longitudinal force, the outer layer first bears the force, and forms an integrated structure with the inner layer through the extrusion process, thereby transmitting the force to the inner layer, and also distributing it through the braided layer. The reinforcing strips 1 and 2 are obliquely arranged in the inner layer, which effectively disperse the force in the radial direction, thereby improving the tensile strength of the cable and ensuring that the force is transmitted to the conductor evenly, thereby enhancing the overall tensile resistance and reducing the risk of breakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a cross-sectional view of the utility model after removing the filling layer;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0019] 1. Wire; 2. Insulation layer; 3. Reinforcement strip 1; 4. Reinforcement strip 2; 5. Inner layer; 6. Braided layer; 7. Outer layer; 8. Filling layer. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0021] A high tensile strength cable, such as Figure 1 and 2The figure shows three rows of conductors 1 and an inner layer 5 made of polyvinyl chloride wrapped on the outside thereof. The outer circle of the conductor 1 is wrapped with an insulating layer 2 made of polyvinyl chloride, and the inner layer 5 is filled with a filling layer 8 made of polyethylene. The outer circle of the inner layer 5 is wound with a braided layer 6 wound by aluminum wire, and the outer circle of the braided layer 6 is fixedly connected with an outer layer 7 made of polyvinyl chloride.
[0022] like Figure 3 As shown, three rows of conductors 1 are arranged in parallel, and the number of conductors 1 in each row is three, and there are clamping spaces 1 and 2 between the three rows of conductors 1. The clamping space 1 and the clamping space 2 are respectively fixedly connected with a reinforcement strip 1 3 and a reinforcement strip 2 4 which are arranged obliquely and made of acrylonitrile rubber, and both ends of the two are fixedly connected to the inner circle of the inner skin layer 5, the reinforcement strip 1 3 and the reinforcement strip 2 4 are arranged in opposite directions, and the reinforcement strip 1 3 and the reinforcement strip 2 4 are staggered in the length direction of the conductor 1, and the number of the reinforcement strip 1 3 and the reinforcement strip 2 4 are both several, and the several reinforcement strips 1 3 and the reinforcement strip 2 4 are evenly spaced in the length direction of the conductor 1.
[0023] When the utility model is subjected to a force in the length direction, the outer skin layer 7 is subjected to the force first. Since the outer skin layer 7 is extruded by an extruder, it will pass through the braided layer 6 and be fixedly connected with the inner skin layer 5 to maintain an integrated structure, and the force will be transmitted to the inner skin layer 5 accordingly. When the inner skin layer 5 is subjected to a force in the length direction, the inclined reinforcing strips 1 3 and 2 4 have the effect of transmitting the force to two positions of the inner circle of the inner skin layer 5, and can decompose the force in the radial direction of the inner skin layer 5, so that the inner skin layer 5 is subjected to the force. At the same time, the reinforcing strips 1 3 and 2 4 can also play an effective tensile effect in the positive and negative length directions of the cable through their own strong tensile strength, thereby enhancing the tensile performance of the entire cable. In addition, the reinforcing strips 1 3 and 2 4 can transmit the force transmitted from the outside to the wire 1 wrapped with the insulating layer 2, so that several wires 1 can be connected together to share the force, thereby giving the entire cable a higher tensile strength and preventing it from being broken.
[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high tensile strength cable, characterized in that: The invention comprises three rows of conductive wires (1) and an inner skin layer (5) wrapped around the outer side thereof. The three rows of conductive wires (1) are arranged in parallel, and a clamping space 1 and a clamping space 2 are present between the three rows of conductive wires (1). The clamping space 1 and the clamping space 2 are respectively fixedly connected to a first reinforcement strip (3) and a second reinforcement strip (4) arranged obliquely, and both ends of the two reinforcement strips are fixedly connected to the inner circle of the inner skin layer (5).
2. A high tensile strength cable according to claim 1, characterized in that: The reinforcing strip one (3) and the reinforcing strip two (4) are arranged in opposite directions, and the reinforcing strip one (3) and the reinforcing strip two (4) are arranged alternately in the length direction of the conductor (1).
3. A high tensile strength cable according to claim 1 or 2, characterized in that: The number of the reinforcing strips one (3) and two (4) is a plurality, and the plurality of reinforcing strips one (3) and two (4) are evenly spaced in the length direction of the conductor (1).
4. A high tensile strength cable according to claim 1, characterized in that: The outer ring of the wire (1) is wrapped with an insulating layer (2), and the insulating layer (2) is made of polyvinyl chloride.
5. The high tensile strength cable according to claim 1, characterized in that: The inner skin layer (5) is filled with a filling layer (8) made of polyethylene material.
6. A high tensile strength cable according to claim 1, characterized in that: The outer ring of the inner skin layer (5) is wound with a braided layer (6), the outer ring of the braided layer (6) is fixedly connected with an outer skin layer (7), the braided layer (6) is wound with aluminum wire, and the outer skin layer (7) and the inner skin layer (5) are both made of polyvinyl chloride.
7. A high tensile strength cable according to claim 1, characterized in that: The reinforcing strip 1 (3) and the reinforcing strip 2 (4) are both made of acrylonitrile rubber.