Cable with shielding layer
By setting a waterproof sheath between the cable core and the grounding wire core, and adding a fire-resistant sheath on the metal belt net, combined with the use of sealing rings and electrical tape, the problem of moisture infiltration at the docking of shielded cables is solved, improving the safety of the cable and service life, and enhance wear and fire resistance.
Patent Information
- Application Number
- CN202420852142.X
- 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
The existing shielded cables have gaps at the butt ends of the cable core, which easily enters water, affecting the safe use of the cable and the service life of the shielding layer.
A cable with a shield is designed, by providing a first and second waterproof sheath between the cable core and the grounding core, and adding a refractory sheath to the outer surface of the metal strip mesh, using a sealing ring and electrical tape. Sealed to ensure waterproof and flame retardant protection at the connection.
It effectively prevents moisture from infiltration at the docking of the cable core, improves the safety of the cable and the service life of the shielding layer, and enhances the wear resistance and fire resistance of the cable.
Smart Images
Figure CN222145833U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shielded cable waterproofing, in particular to a cable with a shielding layer. Background Art
[0002] Cables are an important component of the power distribution system. In recent years, with the increasing development and popularization of the use of wires and cables in production and life, the demand for wires and cables has increased rapidly. Moreover, with the development of the economy, the requirements for their materials have become higher and higher.
[0003] Shielded cable is a transmission line that uses a metal mesh braided layer to wrap the signal line. The braided layer is generally red copper or tinned copper, but when the existing shielded cable is connected at the cable core butt end, there will be a gap inside the cable. After the butt is completed, water is easy to enter the gap, which affects the safe use of the cable and reduces the service life of the shielding layer and the cable core. In order to solve the above problem, a cable with a shielding layer is proposed to solve the above problem. Utility Model Content
[0004] In view of this, the utility model provides a cable with a shielding layer. The utility model can be connected to the shielding end after the shielding cable is disassembled, the shielding cable core is pulled out, and the shielding cable core is twisted together. The first waterproof sheath provides waterproof protection for the grounding wire core, the second waterproof sheath provides waterproof protection for the cable core, the first flame retardant sheath provides flame retardant protection for the grounding wire core, and the second flame retardant sheath provides flame retardant protection for the cable core. After the cable cores are butt-connected, a sealing ring is used to wrap the connection and then an electrical tape is used to wrap and seal it.
[0005] In order to solve the above technical problems, the utility model provides a cable with a shielding layer, including a cable core, a PE sheath and a metal belt mesh, a grounding wire core is provided in the middle of the PE sheath, a first waterproof sheath is provided on the surface of the grounding wire core, a cable core is provided around the first waterproof sheath, a second waterproof sheath is provided on the surface of the cable core, a shielded cable core is filled between the second waterproof sheaths, the shielded cable core is woven in a fan shape, a sealing ring is provided on the surface of the PE sheath, the sealing ring is slidably matched with the surface of the PE sheath, and the sealing ring is made of insulating rubber material.
[0006] A first flame retardant sheath for protecting the grounding core from fire is provided on the surface of the first waterproof sheath. The first flame retardant sheath fits the shielding cable core, and the outer wall of the first waterproof sheath fits the inner wall of the first flame retardant sheath.
[0007] A second flame retardant sheath for protecting the cable core from fire is arranged on the surface of the second waterproof sheath. The second flame retardant sheath fits the shielded cable core, and the outer wall of the second waterproof sheath fits the inner wall of the second flame retardant sheath.
[0008] The metal belt mesh is laid longitudinally in the same length as the cable core.
[0009] The outer surface of the metal belt mesh is provided with a fire-resistant sheath for protecting the internal material of the metal belt mesh from high temperature, and the inner wall of the fire-resistant sheath is in contact with the outer wall of the metal belt mesh.
[0010] The outer wall of the fire-resistant sheath fits the inner wall of the PE sheath, and the longitudinal laying of the PE sheath is consistent with the length of the cable core.
[0011] The inner wall of the metal belt mesh is in contact with the outer wall of the shielded cable core.
[0012] The shielded cable core is made of multiple strands of fine copper wires twisted together.
[0013] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:
[0014] 1. After disassembling the cable, pull out the shielded cable core, twist it together and connect it to the shielded end. The first waterproof sheath provides waterproof protection for the grounding core, the second waterproof sheath provides waterproof protection for the cable core, the first flame retardant sheath provides flame retardant protection for the grounding core, the second flame retardant sheath provides flame retardant protection for the cable core, the grounding core is connected to the grounding port, the cable core is butt-connected, the connection is wrapped with a sealing ring, and then the electrical tape is used to seal it, and then after the cable cores of the shielded cable are butt-connected, water is prevented from entering the gap, thereby improving the safe use of the cable, and thereby increasing the service life of the shielding layer and the cable core.
[0015] 2. The shielded cable core is fan-shaped and is made of multiple strands of fine copper wires twisted together, so that the shielding layer in the shielded cable can be easily pulled out and connected to the shielding end.
[0016] 3. The outer surface of the metal belt mesh is provided with a fire-resistant sheath for protecting the internal material of the metal belt mesh from high temperature. The inner wall of the fire-resistant sheath is in contact with the outer wall of the metal belt mesh. The use of the fire-resistant sheath and the PE sheath improves the wear resistance and fire resistance of the cable core. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the main structure of a cable with a shielding layer according to the utility model;
[0018] Figure 2 This is a front view structural schematic diagram of the utility model;
[0019] Figure 3 It is a front cross-sectional view of the utility model;
[0020] Figure 4 It is a side sectional view of the utility model.
[0021] Description of reference numerals:
[0022] 100, cable core; 101, PE sheath; 102, metal belt mesh; 103, grounding core; 104, first waterproof sheath; 105, second waterproof sheath; 200, shielded cable core; 201, sealing ring; 202, first flame retardant sheath; 203, second flame retardant sheath; 204, fire-resistant sheath. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 The technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the utility model.
[0024] like Figure 1-4 As shown: This embodiment provides a cable with a shielding layer, including a cable core 100, a PE sheath 101 and a metal belt mesh 102, a grounding core 103 for cable grounding protection is provided in the middle of the PE sheath 101, a first waterproof sheath 104 for preventing water from entering the grounding core 103 is provided on the surface of the grounding core 103, a cable core 100 is provided around the first waterproof sheath 104, a second waterproof sheath 105 for preventing water from entering the cable core 100 is provided on the surface of the cable core 100, a shielded cable core 200 for protecting the cable core 100 from electromagnetic interference is filled between the second waterproof sheath 105, the shielded cable core 200 is fan-shaped, a sealing ring 201 for sealing the connection after the cable core 100 is connected is provided on the surface of the PE sheath 101, the sealing ring 201 is slidably matched with the surface of the PE sheath 101, the sealing ring 201 is made of insulating rubber, and the grounding core 103 is the same length as the cable core 100.
[0025] When in use, after disassembling the cable, pull out the shielded cable core 200, twist it together and connect it to the shielding end, the first waterproof sheath 104 provides waterproof protection for the grounding core 103, the second waterproof sheath 105 provides waterproof protection for the cable core 100, the first flame retardant sheath 202 provides flame retardant protection for the grounding core 103, the second flame retardant sheath 203 provides flame retardant protection for the cable core 100, the grounding core 103 is connected to the grounding port, and after the cable core 100 is butt-connected, the sealing ring 201 is used to wrap the connection and then the electrical tape is used to wrap it and seal it.
[0026] This embodiment provides a cable with a shielding layer.
[0027] like Figure 2 , 3As shown: the surface of the first waterproof sheath 104 is provided with a first flame retardant sheath 202 for protecting the grounding core 103 from fire, the first flame retardant sheath 202 is in contact with the shielding cable core 200, the outer wall of the first waterproof sheath 104 is in contact with the inner wall of the first flame retardant sheath 202, the length of the first flame retardant sheath 202 is consistent with the length of the grounding core 103, and the length of the first waterproof sheath 104 is consistent with the grounding core 103.
[0028] like Figure 1 , 2 As shown in Figure 3: the surface of the second waterproof sheath 105 is provided with a second flame retardant sheath 203 for protecting the cable core 100 from fire, the second flame retardant sheath 203 is in contact with the shielded cable core 200, the outer wall of the second waterproof sheath 105 is in contact with the inner wall of the second flame retardant sheath 203, the length of the second flame retardant sheath 203 is consistent with the length of the cable core 100, and the second waterproof sheath 105 is consistent with the length of the cable core 100.
[0029] like Figure 1 , 2 As shown: the metal mesh 102 is laid longitudinally in the same length as the cable core 100 , and a fire-resistant sheath 204 is provided on the outer surface of the metal mesh 102 for protecting the internal material of the metal mesh 102 from high temperature, and the inner wall of the fire-resistant sheath 204 is in contact with the outer wall of the metal mesh 102 .
[0030] like Figure 2 , 4 As shown: the outer wall of the fire-resistant sheath 204 is in contact with the inner wall of the PE sheath 101, the PE sheath 101 is longitudinally laid in the same length as the cable core 100, the inner wall of the metal belt mesh 102 is in contact with the outer wall of the shielded cable core 200, and the shielded cable core 200 is formed by twisting multiple strands of fine copper wires.
[0031] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0032] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A cable with a shielding layer, characterized in that: The invention comprises a cable core (100), a PE sheath (101) and a metal belt mesh (102); a grounding core (103) is arranged in the middle of the PE sheath (101); a first waterproof sheath (104) is arranged on the surface of the grounding core (103); the cable core (100) is arranged around the first waterproof sheath (104); a second waterproof sheath (105) is arranged on the surface of the cable core (100); a shielded cable core (200) is filled between the second waterproof sheaths (105); the shielded cable core (200) is braided in a fan shape; a sealing ring (201) is arranged on the surface of the PE sheath (101); the sealing ring (201) is slidably matched with the surface of the PE sheath (101); and the sealing ring (201) is made of insulating rubber material.
2. A cable with a shielding layer as claimed in claim 1, characterized in that: A first flame retardant sheath (202) is provided on the surface of the first waterproof sheath (104); the first flame retardant sheath (202) is in contact with the shielded cable core (200); and the outer wall of the first waterproof sheath (104) is in contact with the inner wall of the first flame retardant sheath (202).
3. A cable with a shielding layer as claimed in claim 2, characterized in that: A second flame-retardant sheath (203) is provided on the surface of the second waterproof sheath (105); the second flame-retardant sheath (203) is in contact with the shielded cable core (200); and the outer wall of the second waterproof sheath (105) is in contact with the inner wall of the second flame-retardant sheath (203).
4. A cable with a shielding layer as claimed in claim 3, characterized in that: The metal belt mesh (102) is laid longitudinally to a length consistent with that of the cable core (100).
5. A cable with a shielding layer as claimed in claim 4, characterized in that: A fire-resistant jacket (204) is provided on the outer surface of the metal belt mesh (102), and the inner wall of the fire-resistant jacket (204) is in contact with the outer wall of the metal belt mesh (102).
6. A cable with a shielding layer as claimed in claim 5, characterized in that: The outer wall of the fire-resistant sheath (204) is in contact with the inner wall of the PE sheath (101), and the PE sheath (101) is longitudinally laid to be consistent with the length of the cable core (100).
7. A cable with a shielding layer as claimed in claim 6, characterized in that: The inner wall of the metal belt mesh (102) is in contact with the outer wall of the shielded cable core (200).
8. A cable with a shielding layer as claimed in claim 7, characterized in that: The shielded cable core (200) is formed by twisting and braiding a plurality of fine copper wires.