Compact armored cable

Abstract

The utility model discloses a compact armored cable, belonging to the armored cable technology field, the compact armored cable comprises an outer sheath, an anti-scraping assembly and a connecting assembly, the outer sheath is used for wrapping the armored cable, the outer sheath is sleeved on the outer surface of the outer sheath, the anti-scraping assembly comprises two symmetrically arranged sleeves, the sleeves are installed at the outer end of the outer sheath, and the connecting assembly is connected with the outer sheath. A sleeve is arranged on the outer surface of the outer sheath, the sleeve protrudes out of the outer surface of the outer sheath, anti-scraping rings are fixedly installed at the outer end of the sleeve at equal intervals, anti-scraping assemblies are installed on the outer surface of the outer sheath at intervals, the anti-scraping assemblies surround the surface of the outer sheath, and at the moment, due to the fact that the anti-scraping assemblies protrude out of the surface of the outer sheath, when a worker drags a cable in a laying mode, the anti-scraping rings can be prevented from being scratched. The outer sheath is supported by the plurality of anti-scraping assemblies on the outer surface to be isolated from the ground, so that only the anti-scraping assemblies are rubbed with the ground, the surface of the outer sheath can be prevented from being damaged, and the damage rate of the cable is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to armored cable technical field more specifically, relate to a compact armored cable. BACKGROUND

[0002] Armored cable is a kind of special cable with metal or non-metal armored layer between insulation layer and outer sheath, mainly used for enhancing mechanical protection, corrosion resistance and anti-interference ability, mechanical protection against extrusion, impact, gnawing animal damage, armored layer blocks chemical substances and moisture penetration, can shield electromagnetic interference.

[0003] Chinese patent authorized announcement number: CN222562308U provides a kind of novel armored cable, the scheme is by being arranged into carbon fiber reinforced plastic material in the support strip inside non-metal armored layer, can significantly reduce the weight of cable while guaranteeing the mechanical protection performance of cable, by installing elastic belt between adjacent support strip, the installation of elastic belt can evenly distribute multiple support strips to the outer wall of fireproof layer, while facilitating the fixation of multiple support strips, multiple jack are opened in the inside of buffer layer, soft rubber tube is installed in the inside of jack, soft rubber tube has good elasticity, can play good buffer anti-collision effect.

[0004] Armored cable is used in high-current and voltage scenarios due to high cost, resulting in thick wires, and armored layer is designed to increase its protection, resulting in heavy weight, and the outer skin of the cable is prone to contact and friction with the ground during laying due to the need for dragging and moving the cable, and long-term dragging and laying can easily damage the surface of the cable.

[0005] Therefore, a compact armored cable is proposed to solve the above problems. Utility model content

[0006] 1. Technical problem to be solved

[0007] The utility model provides a compact armored cable, which can improve the problems in the related art: the weight of the armored cable is heavy, and the outer skin of the cable is prone to contact and friction with the ground during laying due to the need for dragging and moving the cable, and long-term dragging and laying can easily damage the surface of the cable.

[0008] 2. Technical solution

[0009] To solve the above problems, the utility model adopts the following technical solution.

[0010] This application provides a compact armored cable, including: an outer sheath, a scratch-resistant component, and a connecting component. The outer sheath is used to wrap the armored cable and is fitted onto the outer surface of the outer sheath. The scratch-resistant component includes two symmetrically arranged sleeves, which are installed at the outer ends of the outer sheath and protrude from the outer surface of the outer sheath. Scratch-resistant rings are fixedly installed at equal intervals at the outer ends of the sleeves. The connecting component is used to connect the two sleeves. The sleeves elevate the outer sheath, and the scratch-resistant rings contact the ground to prevent the outer sheath from rubbing against the ground.

[0011] The technical solutions described in this application embodiment have at least the following technical effects:

[0012] Anti-scratch components are installed at intervals on the outer surface of the outer sheath. These components surround the surface of the outer sheath. Since the anti-scratch components protrude from the surface of the outer sheath, when workers lay cables and drag them, the outer sheath is supported by multiple anti-scratch components on the outer surface and isolated from the ground. Therefore, only the anti-scratch components rub against the ground, which can prevent the surface of the outer sheath from being damaged and reduce the damage rate of the cable.

[0013] In some embodiments, the armored cable further includes: an installation assembly and an inner sheath, wherein the inner side of the installation assembly is provided with annularly distributed tensile wires, the outer ends of the tensile wires are wound with a steel strip layer, the outer sheath is sleeved on the outer surface of the steel strip layer, the installation assembly is sleeved on the outer surface of the inner sheath, and three conductors are provided on the inner side of the inner sheath.

[0014] In some embodiments, an insulating layer is provided on the outer surface of each of the three conductors, a shielding layer is provided on the outer surface of the insulating layer, and a filler block for wrapping and fixing the shielding layer is filled inside the inner sheath, the filler block abutting against the outer end of the shielding layer and the inner side of the inner sheath.

[0015] In some embodiments, connecting plates are fixedly connected to both ends of the sleeve, the outer end of the connecting plate is provided with an external protrusion groove, an anti-vibration pad is installed on the inner side of the sleeve, and the outer surface of the anti-vibration pad is provided with equally spaced through holes to reduce weight.

[0016] In some embodiments, the connecting assembly includes two connecting clamps, each of which has an inner groove adapted to the outer protrusion groove, and the connecting clamps are sleeved on the outer surface of the connecting plate through the inner groove.

[0017] In some embodiments, the two ends of the connecting hoop are respectively fixedly connected with a plug and a locking block, the plug and the locking block are adapted to each other, and the two connecting hoops are connected end to end through the plug and the locking block.

[0018] In some embodiments, the mounting assembly includes a mounting ring, an annular groove on the outer surface of the mounting ring, a steel ring mounted inside the annular groove, and an annularly equidistant mounting grooves on the inner side of the mounting ring, wherein the tensile wire is mounted inside the mounting grooves. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an enlarged cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the installation component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the explosion structure of the anti-scratch component of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection component structure of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Outer sheath;

[0026] 2. Anti-scratch component; 21. Sleeve; 22. Connecting plate; 23. Outer groove; 24. Anti-scratch ring; 25. Anti-vibration pad; 26. Through hole;

[0027] 3. Connecting components; 31. Connecting clamp; 32. Inner groove; 33. Insert block; 34. Locking block;

[0028] 4. Mounting components; 41. Mounting ring; 42. Annular groove; 43. Steel ring; 44. Mounting slot;

[0029] 5. Tensile strength;

[0030] 6. Steel strip layer;

[0031] 7. Inner sheath;

[0032] 8. Fill block;

[0033] 9. Shielding layer;

[0034] 10. Insulation layer;

[0035] 11. Conductor. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0037] Please see Figure 1 - Figure 5 A compact armored cable includes: an outer sheath 1, a scratch-resistant component 2, and a connecting component 3. The outer sheath 1 is used to wrap the armored cable and is fitted onto the outer surface of the outer sheath 1. The scratch-resistant component 2 includes two symmetrically arranged sleeves 21, which are installed at the outer end of the outer sheath 1 and protrude from the outer surface of the outer sheath 1. Scratch-resistant rings 24 are fixedly installed at equal intervals at the outer end of the sleeves 21. The connecting component 3 is used to connect the two sleeves 21. The sleeves 21 raise the outer sheath 1, and the scratch-resistant rings 24 contact the ground to prevent the outer sheath 1 from rubbing against the ground.

[0038] The armored cable also includes: an installation component 4 and an inner sheath 7. The inner side of the installation component 4 is provided with ring-shaped and equidistantly distributed tensile filaments 5. The outer end of the tensile filaments 5 is wrapped with a steel strip layer 6. The outer sheath 1 is fitted on the outer surface of the steel strip layer 6. The installation component 4 is fitted on the outer surface of the inner sheath 7. The inner sheath 7 is provided with three conductors 11.

[0039] Compared to traditional armored cables, the armored cable in this solution prevents direct friction between the cable and the ground when dragged. The outermost sheath 1, made of polyvinyl chloride, is primarily used to protect the cable's internal components from chemical corrosion and mechanical damage. Multiple anti-scratch components 2 are evenly distributed on the outer surface of the sheath 1. The spacing between each anti-scratch component 2 can be adjusted according to actual conditions, for example, fifty or thirty centimeters. Each anti-scratch component 2 requires two connecting components 3 to be used, which secure both ends of the anti-scratch component 2 to the outer sheath 1.

[0040] The anti-scratch component 2 surrounds the surface of the outer sheath 1. Since the anti-scratch component 2 protrudes from the surface of the outer sheath 1, when workers lay the cable and drag it, the outer sheath 1 will be supported by multiple anti-scratch components 2 on the outer surface and isolated from the ground. Because the armored cable has a larger diameter, after being supported by the anti-scratch component 2, the middle of the cable is not easy to bend downward and contact the ground. Instead, the anti-scratch component 2 will rub against the ground, thereby preventing the surface of the outer sheath 1 from being damaged and reducing the damage rate of the cable.

[0041] Please see Figure 2The outer surfaces of the three conductors 11 are all covered with an insulating layer 10, and the outer surface of the insulating layer 10 is covered with a shielding layer 9. The inner sheath 7 is filled with a filling block 8 for wrapping and fixing the shielding layer 9. The filling block 8 abuts against the outer end of the shielding layer 9 and the inner side of the inner sheath 7.

[0042] In this design, the inner side of the outer sheath 1 is provided with a steel strip layer 6, and the inner side of the steel strip layer 6 is provided with multiple anti-tensile wires 5 arranged in a ring at equal intervals. The anti-tensile wires 5 are made of materials such as steel wire or high-strength fiber rope. The steel strip layer 6 is wound around the outer end of the ring-shaped anti-tensile wires 5, and the winding method can be similar to wrapping rubber tape. Multiple installation components 4 are sleeved on the outer end of the anti-tensile wires 5. The multiple installation components 4 can be evenly distributed along the path of the anti-tensile wires 5. The installation components 4 are mainly used to restrict and fix the anti-tensile wires 5 to prevent them from shifting and getting tangled together.

[0043] The steel strip layer 6 provides a certain degree of compressive strength. When the cable is subjected to external compression, the steel strip layer 6 can provide resistance. The multiple tensile wires 5 set inside the steel strip layer 6 are used to increase the cable's tensile strength. When the cable is installed vertically, it needs to resist the tensile force generated by its own weight. The tensile wires 5 can improve its tensile strength. The tensile wires 5 and the steel strip layer 6 work together to improve the cable's compressive and tensile strength, thus enhancing its mechanical protection.

[0044] Inside the mounting assembly 4 and the tensile wire 5, there is an inner sheath 7, which is mainly used to isolate the conductive part of the cable from the mechanical protection part to prevent internal damage. Inside the inner sheath 7, there are three conductors 11, each of which is composed of multiple strands of copper or aluminum. The conductors 11 are surrounded by an insulation layer 10, which mainly protects the conductors 11 and isolates them from the outside.

[0045] The outer surface of the insulation layer 10 is covered with a shielding layer 9, which is made of copper and is used to suppress electromagnetic interference and radio frequency interference. According to the Faraday cage effect, the shielding layer 9 reflects external electromagnetic waves, preventing them from penetrating the inside of the cable, thereby improving the stability of the cable operation. The gap between the shielding layer 9 and the inner sheath 7 is filled with a filler block 8. The filler block 8 mainly serves to support and fix the shielding layer 9, preventing it from causing the conductor 11 to move inside the inner sheath 7, thereby improving the stability of the internal structure of the cable.

[0046] Please see Figure 4 and Figure 5 Both ends of the sleeve 21 are fixedly connected to connecting plates 22. The outer end of the connecting plate 22 is provided with an external protrusion 23. An anti-vibration pad 25 is installed on the inner side of the sleeve 21. The outer surface of the anti-vibration pad 25 is provided with equally spaced through holes 26 to reduce weight.

[0047] The connecting assembly 3 includes two connecting clamps 31. The inner side of each connecting clamp 31 is provided with an inner groove 32 that matches the outer protrusion 23. The connecting clamp 31 is sleeved on the outer surface of the connecting plate 22 through the inner groove 32.

[0048] The two ends of the connecting clamp 31 are respectively fixedly connected with the insert block 33 and the locking block 34. The insert block 33 and the locking block 34 are adapted to each other, and the two connecting clamps 31 are connected end to end through the insert block 33 and the locking block 34.

[0049] In this design, the sleeve 21 is semi-cylindrical, and two sleeves 21 can be combined to form a complete cylinder. Connecting plates 22 are fixed at both ends of each sleeve 21. The connecting plates 22 are semi-circular rings that fit the sleeve 21. Multiple equidistant anti-scratch rings 24 are fixed on the outer surface of the sleeve 21. The anti-scratch rings 24 are made of hard and wear-resistant engineering plastic, such as polyamide or polyurethane. The sleeve 21 is higher than the surface of the outer sheath 1, and the anti-scratch rings 24 are higher than the surface of the sleeve 21. When the cable is dragged on the ground, the anti-scratch rings 24 will come into contact with the ground and rub against it, which can protect the outer sheath 1 and prevent it from being damaged and exposing the steel strip layer 6. Thus, the cable can be protected during construction and laying.

[0050] An anti-vibration pad 25 is filled inside the sleeve 21. The anti-vibration pad 25 is located between the sleeve 21 and the outer sheath 1, and its two sides abut against the sleeve 21 and the outer sheath 1 respectively. The anti-vibration pad 25 can be made of rigid foam material. The outer end of the anti-vibration pad 25 is also provided with evenly distributed through holes 26, which not only reduces weight, but also reduces the amount of material used and saves costs. The anti-vibration pad 25 is filled between the sleeve 21 and the outer sheath 1, mainly to play a buffering role. When the cable falls from a height, the anti-scratch component 2 will contact the ground first. At this time, the anti-vibration pad 25 can buffer the impact force on the sleeve 21, thereby protecting the sleeve 21.

[0051] The outwardly protruding groove 23 on the connecting plate 22 protrudes outwards. The connecting component 3 mainly consists of two connecting clamps 31, which are also semi-circular rings. However, an inner groove 32 is formed on the inner side of the connecting clamp 31. The inner groove 32 matches the outwardly protruding groove 23. When the connecting clamp 31 covers the outwardly protruding groove 23, the inner groove 32 can fit with it. At both ends of the connecting clamp 31, a plug 33 and a locking block 34 are fixed respectively. The plug 33 and the locking block 34 are matched. By connecting the two connecting clamps 31 end to end, the plug 33 can be inserted into the locking block 34. The locking block 34 is provided with a threaded hole. The plug 33 and the locking block 34 can be connected together by using screws. At this time, the upper and lower ends of the anti-scratch component 2 are fixed at the same time by the connecting component 3, and the anti-scratch component 2 can be fixed.

[0052] Please see Figure 2 and Figure 4 The mounting component 4 includes a mounting ring 41, an annular groove 42 is formed on the outer surface of the mounting ring 41, a steel ring 43 is installed inside the annular groove 42, and an annularly distributed mounting groove 44 is formed on the inner side of the mounting ring 41. The tensile wire 5 is installed inside the mounting groove 44.

[0053] The mounting component 4 in this scheme is mainly used to install multiple tensile wires 5. An annularly distributed mounting groove 44 is opened on the inner side of the mounting ring 41. The tensile wires 5 can be locked in place by the mounting groove 44, thereby constraining them to be surrounded by the inner sheath 7. The number of mounting components 4 can be adjusted according to the length of the tensile wires 5.

[0054] An annular groove 42 is formed around the mounting ring 41, and a steel ring 43 is installed inside the annular groove 42. The steel ring 43 has a compressive strength function. When the steel strip layer 6 is compressed, the steel ring 43 supports the inner side of the steel strip layer 6, which can improve the compressive strength of the steel strip layer 6 and make it less prone to large deformation.

[0055] Working principle: When the cable is being laid and dragged, the sleeve 21 is higher than the surface of the outer sheath 1, and the anti-scratching ring 24 is higher than the surface of the sleeve 21. The anti-scratching ring 24 will rub against the ground, which can protect the outer sheath 1. The steel strip layer 6 can provide a certain compressive strength, while the multiple tensile wires 5 set inside the steel strip layer 6 are used to increase the tensile strength of the cable. The tensile strength can be improved by the tensile wires 5. The tensile wires 5 and the steel strip layer 6 work together to improve the compressive and tensile strength of the cable and improve mechanical protection.

Claims

1. A compact armored cable, characterized in that, include: Outer sheath (1), used to wrap the armored cable; The anti-scratch component (2) is sleeved on the outer surface of the outer sheath (1). The anti-scratch component (2) includes two symmetrically arranged sleeves (21). The sleeves (21) are installed on the outer end of the outer sheath (1) and protrude from the outer surface of the outer sheath (1). Anti-scratch rings (24) are fixedly installed at equal intervals on the outer end of the sleeves (21). A connecting component (3) is used to connect the two sleeves (21); The sleeve (21) elevates the outer sheath (1), and the anti-scratch ring (24) contacts the ground to prevent the outer sheath (1) from rubbing against the ground.

2. A compact armored cable according to claim 1, characterized in that, The armored cable also includes: The mounting component (4) has an annularly distributed tensile wires (5) on its inner side, and a steel strip layer (6) is wound around the outer end of the tensile wires (5). The outer sheath (1) is fitted on the outer surface of the steel strip layer (6). The inner sheath (7) is fitted with the mounting component (4) on the outer surface of the inner sheath (7), and three conductors (11) are provided on the inner side of the inner sheath (7).

3. A compact armored cable according to claim 2, characterized in that: The outer surfaces of the three conductors (11) are covered with an insulating layer (10), and the outer surface of the insulating layer (10) is covered with a shielding layer (9). The inner sheath (7) is filled with a filling block (8) for wrapping and fixing the shielding layer (9). The filling block (8) abuts against the outer end of the shielding layer (9) and the inner side of the inner sheath (7).

4. A compact armored cable according to claim 2, characterized in that: Both ends of the sleeve (21) are fixedly connected to connecting plates (22). The outer end of the connecting plate (22) is provided with an external protrusion groove (23). An anti-vibration pad (25) is installed on the inner side of the sleeve (21). The outer surface of the anti-vibration pad (25) is provided with equally spaced through holes (26) to reduce weight.

5. A compact armored cable according to claim 4, characterized in that: The connecting assembly (3) includes two connecting clamps (31), and each of the two connecting clamps (31) has an inner groove (32) adapted to the outer protrusion (23) on its inner side. The connecting clamps (31) are fitted onto the outer surface of the connecting plate (22) through the inner groove (32).

6. A compact armored cable according to claim 5, characterized in that: The two ends of the connecting hoop (31) are respectively fixedly connected to the insert block (33) and the locking block (34). The insert block (33) and the locking block (34) are adapted to each other, and the two connecting hoops (31) are connected end to end through the insert block (33) and the locking block (34).

7. A compact armored cable according to claim 6, characterized in that: The mounting assembly (4) includes a mounting ring (41), an annular groove (42) is provided on the outer surface of the mounting ring (41), a steel ring (43) is installed inside the annular groove (42), and an annularly distributed mounting groove (44) is provided inside the mounting ring (41), and the tensile wire (5) is installed inside the mounting groove (44).

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