Double-layer shielding high-performance low-cost composite cable

Abstract

The utility model discloses a double-layer shielding high-performance low-cost composite cable, which belongs to the technical field of cables and comprises three groups of cable cores, an outer sheath, a protection assembly and a connection assembly. The connecting assembly comprises a threaded sleeve, a threaded column, a waterproof mechanism, a limiting mechanism and a connecting mechanism. Through cooperative use of the threaded sleeve, the threaded column, the waterproof mechanism and the limiting mechanism, one end of the threaded column is in threaded connection with the inner cavity of the threaded sleeve, a gap generated between the threaded column and one end of the threaded sleeve is blocked through the waterproof mechanism, and then the threaded sleeve and the threaded column are limited through the limiting mechanism; according to the cable end-to-end connection device, two cables can be connected end to end, operation is simple, convenient and rapid, meanwhile, rotation between the threaded sleeve and the threaded column can be prevented, loss caused by loosening of connection between the threaded sleeve and the threaded column is avoided, the safety of end-to-end connection of the two cables is guaranteed, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a double-layer shielded high-performance and low-cost composite cable. Background Technique

[0002] The cable is similar to a rope in shape and is usually composed of multiple groups of wires twisted together. Each group of wires is insulated from each other and is often twisted around a center. The whole is covered with a highly insulating covering layer; the cables are mostly erected in the air or installed underground or underwater for telecommunications or power transmission; in order to ensure the normal and stable operation of the cables, the cables need to have basic safety performance, such as wear resistance, flame retardancy, fire resistance, etc., and corresponding special performance according to different application occasions, such as insect repellency, corrosion resistance, cold resistance, etc.

[0003] The existing cable has a simple structure, and there is a problem that it is not convenient to connect the end of the cable to the end of other cables. Therefore, it is necessary for us to propose a double-layer shielded high-performance and low-cost composite cable. Content of the Utility Model

[0004] The purpose of the utility model is to provide a double-layer shielded high-performance and low-cost composite cable, which has a structure that makes the end of the cable convenient to connect, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A double-layer shielded high-performance and low-cost composite cable, including three groups of cable cores. An outer sheath is arranged on the outer surface of the three groups of cable cores. A protection component for protecting the cable cores is arranged between the inner wall of the outer sheath and the three groups of cable cores. Connection components for connecting the cables are arranged at both ends of the outer sheath;

[0006] The connection component includes a threaded sleeve fixedly installed at one end of the outer sheath and a threaded post arranged at the other end of the outer sheath. The inner wall of the threaded sleeve is adapted to the surface of one end of the threaded post, and the threaded post is threadedly connected to the inner cavity of the threaded sleeve. A waterproof mechanism is arranged between one end of the threaded sleeve and the threaded post. A limiting mechanism is arranged between the surface of the threaded sleeve and the surface of the threaded post. A connection mechanism is arranged at one end of the threaded post, and one end of the threaded post is connected to one end of the outer sheath through the connection mechanism.

[0007] Preferably, the waterproof mechanism includes an annular groove opened at one end of the threaded sleeve and a fixing plate fixedly installed on the surface of one end of the threaded post. A waterproof ring is arranged on one side of the fixing plate and on the surface of the threaded post. The waterproof ring corresponds to the annular groove, and the surface of the waterproof ring fits against the inner wall of the annular groove.

[0008] Preferably, the limiting mechanism includes two groups of limiting blocks fixedly installed on both sides of the threaded sleeve. A limiting rod is slidably connected inside the limiting block. A limiting plate is fixedly installed on the surface of the limiting rod and inside the limiting block. A telescopic spring is arranged on one side of the limiting plate and on the surface of the limiting rod. One end of the telescopic spring is fixedly installed on the inner wall of one end of the limiting block.

[0009] Preferably, the limiting mechanism further includes two groups of mounting plates fixedly installed on both sides of the fixing plate. A limiting hole is formed through one side of the mounting plate. The limiting hole is adapted to one end of the limiting rod, and one end of the limiting rod is inserted into the inner cavity of the limiting hole.

[0010] Preferably, the connecting mechanism includes a connecting seat fixedly installed at one end of the cable core and a connecting groove formed at one end of the surface of the threaded column. One end of the connecting seat is fixedly installed with a connecting plate. One end of the connecting plate is adapted to the inside of the connecting groove, and one end of the connecting plate is slidably connected to the inner wall of the connecting groove.

[0011] Preferably, the cable core includes a conductor. An insulating layer is arranged on the surface of the conductor. A first shielding layer is arranged outside the insulating layer. The outside of the first shielding layer is connected with an inner sheath. The outside of the inner sheath is connected with the protection component.

[0012] Preferably, the protection component includes a water-proof layer arranged on the inner wall of the outer sheath. A second shielding layer is arranged inside the water-proof layer. The inside of the second shielding layer is connected with a filling layer. The inside of the filling layer is in fitting connection with the outside of the three inner sheaths.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By the combined use of the threaded sleeve, the threaded column, the waterproof mechanism and the limiting mechanism, one end of the threaded column is first threadedly connected to the inner cavity of the threaded sleeve. The waterproof mechanism is used to seal the gap generated between the threaded column and one end of the threaded sleeve. Then, the limiting mechanism is used to limit the threaded sleeve and the threaded column, so that the heads and tails of two cables can be connected. The operation is simple, convenient and fast. At the same time, it can prevent the threaded sleeve and the threaded column from rotating, avoid losses caused by the loosening of the connection between the threaded sleeve and the threaded column, ensure the safety of the connection of the heads and tails of two cables, and improve the practicability of the device.

[0015] Other features and advantages of the present utility model will be described in the following specification. And, some of them will become obvious from the specification, or be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the specification and the drawings. Description of the Drawings

[0016] Figure 1 is a schematic structural view of the present utility model;

[0017] Figure 2 is a schematic cross-sectional structural view of the limit block of the present utility model;

[0018] Figure 3 is a schematic structural view of the connection mechanism of the present utility model;

[0019] Figure 4 is a schematic cross-sectional structural view of the cable core of the present utility model.

[0020] In the figure: 1. Cable core; 101. Conductor; 102. Isolation layer; 103. First shielding layer; 104. Inner sheath; 2. Outer sheath; 3. Threaded sleeve; 4. Threaded post; 5. Waterproof mechanism; 501. Annular groove; 502. Fixed plate; 503. Waterproof ring; 6. Limiting mechanism; 601. Limit block; 602. Limiting rod; 603. Limiting plate; 604. Telescopic spring; 605. Mounting plate; 606. Limiting hole; 7. Connection mechanism; 701. Connection seat; 702. Connection groove; 703. Connection plate; 8. Water isolation layer; 9. Second shielding layer; 10. Filling layer. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a double-layer shielded high-performance and low-cost composite cable, including a cable core 1, an outer sheath 2, a protection component, and a connection component.

[0023] Preferably, three groups of cable cores 1 are provided. An outer sheath 2 is arranged on the outer surfaces of the three groups of cable cores 1. A protection component for protecting the cable cores 1 is arranged between the inner wall of the outer sheath 2 and the three groups of cable cores 1. Connection components for connecting the cables are arranged at both ends of the outer sheath 2.

[0024] Preferably, the connecting component includes a threaded sleeve 3, a threaded post 4, a waterproof mechanism 5, a limiting mechanism 6, and a connecting mechanism 7. The threaded sleeve 3 is fixedly installed at one end of the outer sheath 2, the threaded post 4 is arranged at the other end of the outer sheath 2. The inner wall of the threaded sleeve 3 is adapted to the surface of one end of the threaded post 4, and the threaded post 4 is threadedly connected to the inner cavity of the threaded sleeve 3. A waterproof mechanism 5 is arranged between one end of the threaded sleeve 3 and the threaded post 4, a limiting mechanism 6 is arranged between the surface of the threaded sleeve 3 and the surface of the threaded post 4, a connecting mechanism 7 is arranged at one end of the threaded post 4, and one end of the threaded post 4 is connected to one end of the outer sheath 2 through the connecting mechanism 7.

[0025] Specifically, through the coordinated use of the threaded sleeve 3, the threaded post 4, the waterproof mechanism 5, and the limiting mechanism 6, first threadedly connect one end of the threaded post 4 to the inner cavity of the threaded sleeve 3, use the waterproof mechanism 5 to block the gap generated between one end of the threaded post 4 and the threaded sleeve 3, and then use the limiting mechanism 6 to limit the threaded sleeve 3 and the threaded post 4, so that the heads and tails of the two cables can be connected. The operation is simple, convenient and fast. At the same time, it can prevent the threaded sleeve 3 and the threaded post 4 from rotating, avoid losses caused by loosening of the connection between the threaded sleeve 3 and the threaded post 4, ensure the safety of the connection between the heads and tails of the two cables, and improve the practicability of the device.

[0026] Preferably, the waterproof mechanism 5 includes an annular groove 501, a fixing plate 502, and a waterproof ring 503. The annular groove 501 is opened at one end of the threaded sleeve 3, the fixing plate 502 is fixedly installed at one end of the surface of the threaded post 4, a waterproof ring 503 is arranged on one side of the fixing plate 502 and on the surface of the threaded post 4. The waterproof ring 503 corresponds to the annular groove 501, and the surface of the waterproof ring 503 fits against the inner wall of the annular groove 501, which can seal between one end of the threaded sleeve 3 and the threaded post 4 and prevent water from seeping into the cable.

[0027] Preferably, the limiting mechanism 6 includes a limiting block 601, a limiting rod 602, a limiting plate 603, a telescopic spring 604, a mounting plate 605, and a limiting hole 606. Two groups of limiting blocks 601 are respectively fixedly installed on both sides of the threaded sleeve 3. The limiting rod 602 is slidably connected inside the limiting block 601. A limiting plate 603 is fixedly installed on the surface of the limiting rod 602 and inside the limiting block 601. A telescopic spring 604 is arranged on one side of the limiting plate 603 and on the surface of the limiting rod 602. One end of the telescopic spring 604 is fixedly installed on the inner wall of one end of the limiting block 601. Two groups of mounting plates 605 are fixedly installed on both sides of the fixing plate 502. A limiting hole 606 is opened through one side of the mounting plate 605. The limiting hole 606 is adapted to one end of the limiting rod 602, and one end of the limiting rod 602 is inserted into the inner cavity of the limiting hole 606.

[0028] Specifically, through the combined use of the limit block 601, limit rod 602, limit plate 603, telescopic spring 604, mounting plate 605 and limit hole 606, the threaded sleeve 3 and threaded post 4 after threaded connection can be limited, avoiding losses caused by the reverse rotation between the threaded sleeve 3 and the threaded post 4.

[0029] Preferably, the connecting mechanism 7 includes: a connecting seat 701, a connecting groove 702 and a connecting plate 703. The connecting seat 701 is fixedly installed at one end of the cable core 1. The connecting groove 702 is opened at one end of the surface of the threaded post 4. One end of the connecting seat 701 is fixedly installed with a connecting plate 703. One end of the connecting plate 703 is adapted to the inside of the connecting groove 702, and one end of the connecting plate 703 is slidably connected to the inner wall of the connecting groove 702.

[0030] Specifically, through the combined use of the connecting seat 701, connecting groove 702 and connecting plate 703, the threaded post 4 can be connected to one end of the outer sheath 2, making it convenient for the threaded post 4 to rotate and thread-connect with the inner wall of the threaded sleeve 3.

[0031] Preferably, the cable core 1 includes: a conductor 101, an insulating layer 102, a first shielding layer 103 and an inner sheath 104. The insulating layer 102 is arranged on the surface of the conductor 101. The first shielding layer 103 is arranged outside the insulating layer 102. The inner sheath 104 is connected to the outside of the first shielding layer 103. The outside of the inner sheath 104 is connected to the protection component.

[0032] Preferably, the protection component includes: a water barrier layer 8, a second shielding layer 9 and a filling layer 10. The water barrier layer 8 is arranged on the inner wall of the outer sheath 2. The second shielding layer 9 is arranged inside the water barrier layer 8. The filling layer 10 is connected to the inside of the second shielding layer 9. The inside of the filling layer 10 is in close contact with the outside of the three inner sheaths 104.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer shielded high-performance and low-cost composite cable, characterized in that: It includes three groups of cable cores (1). An outer sheath (2) is arranged on the outer surfaces of the three groups of cable cores (1). A protection component for protecting the cable cores (1) is arranged between the inner wall of the outer sheath (2) and the three groups of cable cores (1). Connection components for connecting the cables are arranged at both ends of the outer sheath (2). The connection components include a threaded sleeve (3) fixedly installed at one end of the outer sheath (2) and a threaded post (4) arranged at the other end of the outer sheath (2). The inner wall of the threaded sleeve (3) is adapted to the surface of one end of the threaded post (4), and the threaded post (4) is threadedly connected to the inner cavity of the threaded sleeve (3). A waterproof mechanism (5) is arranged between one end of the threaded sleeve (3) and the threaded post (4). A limiting mechanism (6) is arranged between the surface of the threaded sleeve (3) and the surface of the threaded post (4). A connection mechanism (7) is arranged at one end of the threaded post (4), and one end of the threaded post (4) is connected to one end of the outer sheath (2) through the connection mechanism (7).

2. The double-layer shielded high-performance and low-cost composite cable according to claim 1, wherein: The waterproof mechanism (5) includes an annular groove (501) opened at one end of the threaded sleeve (3) and a fixing plate (502) fixedly installed on the surface of one end of the threaded post (4). A waterproof ring (503) is arranged on one side of the fixing plate (502) and on the surface of the threaded post (4). The waterproof ring (503) corresponds to the annular groove (501), and the surface of the waterproof ring (503) fits against the inner wall of the annular groove (501).

3. A double-layer shielded high-performance and low-cost composite cable according to claim 1, characterized in that: The limiting mechanism (6) includes two groups of limiting blocks (601) fixedly installed on both sides of the threaded sleeve (3). A limiting rod (602) is slidably connected inside the limiting block (601). A limiting plate (603) is fixedly installed on the surface of the limiting rod (602) and inside the limiting block (601). A telescopic spring (604) is arranged on one side of the limiting plate (603) and on the surface of the limiting rod (602). One end of the telescopic spring (604) is fixedly installed on the inner wall of one end of the limiting block (601).

4. A double-layer shielded high-performance and low-cost composite cable according to claim 3, characterized in that: The limiting mechanism (6) further includes two groups of mounting plates (605) fixedly installed on both sides of the fixing plate (502). A limiting hole (606) is opened through one side of the mounting plate (605). The limiting hole (606) is adapted to one end of the limiting rod (602), and one end of the limiting rod (602) is inserted into the inner cavity of the limiting hole (606).

5. The double-layer shielded high-performance and low-cost composite cable according to claim 1, characterized in that: The connection mechanism (7) includes a connection seat (701) fixedly installed at one end of the cable core (1) and a connection groove (702) opened on the surface of one end of the threaded post (4). A connecting plate (703) is fixedly installed at one end of the connection seat (701). One end of the connecting plate (703) is adapted to the inside of the connection groove (702), and one end of the connecting plate (703) is slidably connected to the inner wall of the connection groove (702).

6. A double-layer shielded high-performance and low-cost composite cable according to claim 1, characterized in that: The cable core (1) includes a conductor (101), an insulating layer (102) is provided on the surface of the conductor (101), a first shielding layer (103) is provided outside the insulating layer (102), an inner sheath (104) is connected to the outside of the first shielding layer (103), and the outside of the inner sheath (104) is connected to the protection component.

7. A double-layer shielded high-performance and low-cost composite cable according to claim 6, characterized in that: The protection component includes a water-proof layer (8) provided on the inner wall of the outer sheath (2), a second shielding layer (9) is provided inside the water-proof layer (8), a filling layer (10) is connected to the inside of the second shielding layer (9), and the inside of the filling layer (10) is in fitting connection with the outside of the three groups of inner sheaths (104).

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