Cable with high protection performance

Abstract

The utility model relates to the technical field of cables, in particular to a high-protection cable, which comprises an inner sheath, a cable core assembly is fixedly mounted in an inner cavity of the inner sheath, an inner supporting assembly is mounted on the outer surface of the inner sheath in a sleeving manner, and the inner supporting assembly comprises an inner supporting sleeve. According to the utility model, the problems that the installation mode of the cable is limited, the sliding effect through the inclined surface of the pressure block is poor, the external strength is general, and the external deformation of the cable is possibly caused when the cable is punctured due to pressure buffering and force releasing can be carried out only in one direction are solved, and the purpose of efficient buffering is achieved; buffering can be carried out from two directions at the same time, the limitation of the installation mode is avoided, the cable installation applicability is improved, high-strength puncture-resistant protection can be carried out on the cable, deformation and damage cannot occur when the exterior of the cable is impacted or punctured, the protection performance of the cable is improved, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a highly protective cable. Background Art

[0002] A power cable is a special wire that conducts electricity by insulating and winding an extruded layer on a metal wire core and shielding and sealing it with protective materials. A low-smoke and halogen-free wire sheath is composed of thermoplastic or thermosetting materials that emit low amounts of smoke when heated and do not contain halogens themselves.

[0003] After retrieval, the utility model patent with the patent number CN216450415U and the name of an anti-puncture highly protective cable with an inclined force unloading structure includes a cable main body, a rubber outer skin, and a limiting plate. Through research and analysis, it is found that although the cable makes the sharp object slide along the inclined surface of the pressure block and drive the support ring to rotate to achieve the purpose of force unloading when the sharp object contacts the pressure block through the obliquely arranged pressure block, so that the sharp object will not directly pierce the cable, effectively achieving the protection effect on the cable. However, to a certain extent, there are still the following disadvantages.

[0004] For example, it can only buffer and release pressure from one direction, making the installation method of the cable relatively limited, and the sliding effect through the inclined surface of the pressure block is poor. When under long-term pressure, the sharp object will slide to the maximum position of the inclined surface of the pressure block, and then the buffering effect cannot be achieved continuously. The protection performance is average, and the external strength is general. When being punctured, the external part of the cable may deform. To solve the above technical problems, we have designed a highly protective cable. Content of the Utility Model

[0005] The purpose of the utility model is to provide a highly protective cable, which has the advantages of high efficiency in buffering and high strength, and solves the problems that the pressure can only be buffered and released from one direction, making the installation method of the cable relatively limited, the sliding effect through the inclined surface of the pressure block is poor, and the external strength is general, and the external part of the cable may deform when being punctured.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A highly protective cable includes an inner sheath, a cable core assembly is fixedly installed in the inner cavity of the inner sheath, an inner support assembly is sleeved on the outer surface of the inner sheath, the inner support assembly includes an inner support sleeve, an outer support assembly is sleeved on the outer surface of the inner support sleeve, the outer support assembly includes an outer support sleeve, and an outer sheath is fixedly sleeved on the outer surface of the outer support sleeve.

[0007] Preferably, the cable core assembly includes copper stranded wires, a strengthening core is disposed through the inner cavity of the copper stranded wires, the number of the copper stranded wires is four, and the copper stranded wires are wound around the outer surface of the strengthening core in a hinged state, and the strengthening core is made of low-carbon galvanized steel wire.

[0008] Preferably, the inner support sleeve is fixedly sleeved on the outer surface of the inner sheath, a plurality of inner sliding grooves are formed on the outer surface of the inner support sleeve, and connecting blocks are fixedly installed on the peripheries of the outer surface of the inner support sleeve.

[0009] Preferably, a fixing rod is fixedly connected to the surface of the connecting block, and buffer rollers are rotatably sleeved on the surface of the fixing rod at positions corresponding to the inner sliding grooves, and the surface of the buffer rollers is in sliding contact with the surface of the inner sliding grooves.

[0010] Preferably, a plurality of outer sliding grooves are formed on the inner wall of the outer support sleeve, the outer support sleeve is made of flame-retardant polyvinyl fluoride, and a high-temperature refractory silicon coating is sprayed on the outer surface of the outer support sleeve.

[0011] Preferably, the inner sheath is made of PE material, the inner support sleeve is made of armored steel strip, and the outer sheath is made of PVC material.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the outer support sleeve rolls on the surface of the buffer roller. When the cable is externally impacted, the impact force is buffered by the rotation of the outer support sleeve, so as to achieve the purpose of efficient buffering, and the buffering can be carried out simultaneously from two directions, avoiding the limitation of the installation method and improving the installation applicability of the cable.

[0014] 2. By using the outer sheath, the outer support sleeve and the inner support sleeve, the present utility model can provide high-strength puncture resistance protection for the cable, so that the cable will not be deformed or damaged when externally impacted or punctured, improving the protection performance of the cable and extending the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional exploded sectional view of a partial structure of the present utility model;

[0017] Figure 3 is a three-dimensional schematic diagram of a partial structure of the cable core assembly of the present utility model;

[0018] Figure 4 is the present utility model Figure 2 an enlarged schematic diagram of A in.

[0019] In the figure: 1. Inner sheath; 2. Outer support assembly; 21. Outer support sleeve; 22. Outer sliding groove; 3. Outer sheath; 4. Inner support assembly; 41. Inner support sleeve; 42. Inner sliding groove; 43. Fixed rod; 44. Connecting block; 45. Buffer roller; 5. Cable core assembly; 51. Copper stranded wire; 52. Reinforcing core. Detailed implementation manners

[0020] Please refer to Figures 1-4 A highly protective cable includes an inner sheath 1. A cable core assembly 5 is fixedly installed in the inner cavity of the inner sheath 1. An inner support assembly 4 is sleeved on the outer surface of the inner sheath 1. The inner support assembly 4 includes an inner support sleeve 41. An outer support assembly 2 is sleeved on the outer surface of the inner support sleeve 41. The outer support assembly 2 includes an outer support sleeve 21. An outer sheath 3 is fixedly sleeved on the outer surface of the outer support sleeve 21;

[0021] Please refer to Figure 1 and Figure 3 The cable core assembly 5 includes copper stranded wires 51. A reinforcing core 52 is disposed through the inner cavity of the copper stranded wires 51. By providing the reinforcing core 52, the cable can be strengthened and protected, preventing the copper stranded wires 51 inside the cable from breaking, and extending the service life of the cable. The number of copper stranded wires 51 is four, and they are wound around the outer surface of the reinforcing core 52 in a hinged state. The material of the reinforcing core 52 is low-carbon galvanized steel wire;

[0022] Please refer to Figure 1 and Figure 2 The inner support sleeve 41 is fixedly sleeved on the outer surface of the inner sheath 1. A plurality of inner sliding grooves 42 are formed on the outer surface of the inner support sleeve 41. By using the inner sliding grooves 42 and the outer sliding grooves 22, the buffer roller 45 can be limited, preventing it from shifting during rotation and improving its stability during rotation, so as to buffer external impacts more stably. Connecting blocks 44 are fixedly installed on the four circumferences of the outer surface of the inner support sleeve 41. By providing the connecting blocks 44, it is convenient to fix the fixed rods 43 on the outer surface of the inner support sleeve 41, enabling the buffer roller 45 to rotate stably on the surface of the fixed rods 43;

[0023] Please refer to Figure 2 and Figure 4 The surface of the connecting block 44 is fixedly connected to a fixed rod 43. Buffer rollers 45 are rotatably sleeved on the surface of the fixed rod 43 at the positions of the inner sliding grooves 42. The surface of the buffer roller 45 is in sliding contact with the surface of the inner sliding groove 42;

[0024] Please refer to Figure 2 and Figure 4The inner wall of the outer support sleeve 21 is provided with a plurality of outer sliding grooves 22. The material of the outer support sleeve 21 is flame-retardant polyvinyl fluoride. The outer surface of the outer support sleeve 21 is sprayed with a high-temperature fire-resistant silicon coating. The outer support sleeve 21 has a supporting effect on the one hand, and can also provide flame-retardant protection on the other hand to prevent the cable from burning after contacting a fire source. The surface of the buffer drum 45 is in sliding contact with the inner wall of the outer sliding groove 22;

[0025] See also Figure 1 The inner sheath 1 is made of PE material, which can shield the signal and prevent the external current from interfering with the internal copper stranded wire 51. The inner support sleeve 41 is an armored steel belt, and the outer sheath 3 is made of PVC material.

[0026] When in use, through the use of the outer sheath 3, the outer support sheath 21 and the inner support sheath 41, the cable can be provided with high-strength puncture-resistant protection, so that the cable will not be deformed or damaged when the outside is impacted or punctured. When the cable is impacted, it first contacts the surface of the outer sheath 3, and the outer sheath 3 drives the outer support sheath 21 to rotate, so that it rolls on the outer surface of the buffer roller 45. The buffer roller 45 slides inside the outer sliding groove 22 and the inner sliding groove 42, and buffers the impact force in a rotational manner, thereby achieving a high protection effect. The copper stranded wire 51 is hinged on the surface of the reinforcing core 52, which can effectively avoid the breakage of the copper stranded wire 51 and extend the service life of the cable.

[0027] In summary: this highly protective cable, through the cooperation of the inner sheath 1, the outer support assembly 2, the outer sheath 3, the inner support assembly 4 and the cable core assembly 5, solves the problem that the pressure buffering and force release can only be performed in one direction, which makes the installation method of the cable more limited, the sliding effect of the inclined surface through the pressure block is poor, and the external strength is general, which may cause the external deformation of the cable when punctured.

Claims

1. A highly protective cable, comprising an inner sheath (1), characterized in that: The inner cavity of the inner sheath (1) is fixedly mounted with a cable core assembly (5); the outer surface of the inner sheath (1) is sleeved with an inner support assembly (4); the inner support assembly (4) comprises an inner support sleeve (41); the outer surface of the inner support sleeve (41) is sleeved with an outer support assembly (2); the outer support assembly (2) comprises an outer support sleeve (21); the outer surface of the outer support sleeve (21) is fixedly sleeved with an outer sheath (3).

2. A highly protective cable according to claim 1, characterized in that: The cable core assembly (5) comprises a copper stranded wire (51), the inner cavity of the copper stranded wire (51) being penetrated by a reinforcing core (52), the number of the copper stranded wires (51) being four and being wound around the outer surface of the reinforcing core (52) in a hinged state, and the material of the reinforcing core (52) being low-carbon galvanized steel wire.

3. A highly protective cable according to claim 1, characterized in that: The inner support sleeve (41) is fixedly sleeved on the outer surface of the inner protective sleeve (1), a plurality of inner sliding grooves (42) are provided on the outer surface of the inner support sleeve (41), and connecting blocks (44) are fixedly mounted on all four sides of the outer surface of the inner support sleeve (41).

4. A highly protective cable according to claim 3, characterized in that: A fixing rod (43) is fixedly connected to the surface of the connecting block (44), and a buffer roller (45) is rotatably sleeved on the surface of the fixing rod (43) and located at the inner sliding groove (42), and the surface of the buffer roller (45) is in sliding contact with the surface of the inner sliding groove (42).

5. A highly protective cable according to claim 1, characterized in that: The inner wall of the outer support sleeve (21) is provided with a plurality of outer sliding grooves (22); the material of the outer support sleeve (21) is flame-retardant polyvinyl fluoride; and the outer surface of the outer support sleeve (21) is sprayed with a high-temperature fire-resistant silicon coating.

6. A highly protective cable according to claim 1, characterized in that: The inner sheath (1) is made of PE material, the inner support sleeve (41) is an armored steel belt, and the outer sheath (3) is made of PVC material.

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