Compatible cable for instrument

Abstract

The utility model provides a compatible cable for an instrument, which belongs to the technical field of instrument cables and comprises a cable body, the cable body comprises a wire group, the wire group comprises a plurality of wire cores which are woven and wound mutually, a polyvinyl chloride waterproof layer is arranged outside the wire group, and a styrene butadiene rubber elastic compression-resistant layer is arranged on the polyvinyl chloride waterproof layer. A metal shielding layer is arranged outside the butadiene styrene rubber elastic compression-resistant layer, the metal shielding layer comprises a tin-coated copper wire, the tin-coated copper wire is wrapped outside the butadiene styrene rubber elastic compression-resistant layer, the interior of the tin-coated copper wire is hollow, and a metal aluminum layer is arranged outside the tin-coated copper wire. A traditional metal layer overlapping mode is not needed, the cost and quality of the cable are effectively reduced, the internal space structure of the cable is optimized, normal bending of the cable is not affected, and workers can conveniently conduct detection in complex environments such as large motors, transformers or high-frequency communication equipment.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the technical field of instrument cable, specifically is a kind of instrument compatible cable. BACKGROUND

[0002] Instrument cable is a kind of cable specially used for transmitting signal in instrument, is the important bridge between electronic equipment and measuring instrument, is applicable to signal transmission and control circuit in instrument, instrument and other electrical equipment, is widely used in power, petrochemical industry, metallurgy, light industry, food, machinery and other industries control, signal, data transmission system.

[0003] In complex industrial environment or electrical equipment dense area, instrument cable is vulnerable to external electromagnetic interference, for example, the electromagnetic field generated by nearby large motor, transformer or high-frequency communication equipment, will interfere with the weak electric signal transmitted by cable, if the shielding layer of cable is damaged or shielding effect is not good, it will lead to signal distortion, fluctuation or even error, affect the normal reading of instrument and the accurate control of system, in order to improve the anti-interference ability of cable, the existing instrument compatible cable mainly adds metal layer inside the cable, however, with the addition of metal layer, the weight and cost of cable will also increase, at the same time, the bending ability of cable will be greatly reduced, if cable is not convenient to bend between large motor, transformer or high-frequency communication equipment, it will increase the difficulty of detection work for detection personnel. UTILITY MODEL CONTENTS

[0004] The utility model technical scheme is aimed at the technical problem that existing technical solution is too single, provides a solution significantly different from prior art, specifically the utility model mainly provides a kind of instrument compatible cable to solve the technical problem that the anti-interference ability of cable is improved, mainly by adding metal layer inside the cable, however, with the addition of metal layer, the bending ability of cable will be greatly reduced, and the difficulty of detection work for detection personnel is increased.

[0005] The utility model solves the technical problem by the technical scheme that:

[0006] A kind of instrument compatible cable, including cable body, the cable body includes line group, the line group includes multiple mutually braided winding wire core, the line group is provided with polyvinyl chloride waterproof layer outside, the polyvinyl chloride waterproof layer is provided with butadiene styrene rubber elastic pressure layer, the butadiene styrene rubber elastic pressure layer is provided with metal shielding layer outside, the metal shielding layer includes tinned copper wire, tinned copper wire is wrapped in butadiene styrene rubber elastic pressure layer outside, and tinned copper wire is hollow inside, the outside of tinned copper wire is provided with metal aluminum layer.

[0007] Further, the metal shielding layer is provided with a halogen-free low-smoke flame-retardant layer, the thickness of the halogen-free low-smoke flame-retardant layer is 3-4 mm, and the thickness of the halogen-free low-smoke flame-retardant layer is the same as the thickness of the butadiene-styrene rubber elastic compression-resistant layer.

[0008] Further, the halogen-free low-smoke flame-retardant layer is externally provided with a neoprene outer sheath.

[0009] Further, the thickness of the neoprene outer sheath is 5-8 mm.

[0010] Further, the wire group is provided with a reinforcing rib, and the wire core is wound on the reinforcing rib.

[0011] Further, each wire core comprises a plurality of conductors and an insulating layer wrapping the conductors.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The utility model discloses a wire core, polyvinyl chloride waterproof layer, butadiene-styrene rubber elastic compression-resistant layer, metal shielding layer, tinned copper wire, metal aluminum layer, halogen-free low-smoke flame-retardant layer, neoprene outer sheath and reinforcing rib are arranged, realize the improvement of cable anti-interference ability, do not need to adopt the traditional superposition metal layer's mode, effectively reduced the cost and quality of cable, optimized the space structure in the cable, and the shielding layer constitutes the form of spiral winding, does not affect the normal bending of cable, facilitates the staff to detect in the complex environment such as large -scale motor, transformer or high -frequency communication equipment, and simple structure, and the existing equipment can produce, has certain practical value.

[0014] The utility model will be explained in detail below in combination with the drawings and specific embodiments. DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the whole structure exploded schematic diagram of the utility model;

[0017] Figure 3 It is the whole structure of the utility model Figure 2 A area amplification schematic diagram.

[0018] In the drawing: 1, cable body;11, wire core;111, conductor;112, insulating layer;12, polyvinyl chloride waterproof layer;13, butadiene-styrene rubber elastic compression-resistant layer;14, metal shielding layer;141, tinned copper wire;142, metal aluminum layer;15, halogen-free low-smoke flame-retardant layer;16, neoprene outer sheath;17, reinforcing rib. DETAILED DESCRIPTION

[0019] For the convenience of understanding the utility model, the utility model will be described more comprehensively below with reference to relevant drawings, and several embodiments of the utility model are given in the drawings, but the utility model can be realized by different forms and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the utility model more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element, and the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, and the terms used in the specification of the utility model herein are for the purpose of describing specific embodiments and are not intended to limit the utility model, and the term "and / or" used herein includes any and all combinations of one or more relevant listed items.

[0022] Please refer to the accompanying drawings Figures 1-3 A compatible cable for instruments, comprising a cable body 1, the cable body 1 comprises a wire group, the wire group comprises a plurality of wire cores 11 which are interwovenly wound, a polyvinyl chloride waterproof layer 12 is arranged outside the wire group, a butadiene styrene rubber elastic compression-resistant layer 13 is arranged on the polyvinyl chloride waterproof layer 12, the waterproof layer and the compression-resistant layer are both extrusion-formed, a metal shielding layer 14 is arranged outside the butadiene styrene rubber elastic compression-resistant layer 13, the metal shielding layer 14 comprises a tinned copper wire 141, the tinned copper wire 141 is wrapped outside the butadiene styrene rubber elastic compression-resistant layer 13, and the tinned copper wire 141 is hollow inside, a metal aluminum layer 142 is arranged on the outside of the tinned copper wire 141, the hollow design of the tinned copper wire 141 reduces the use of metal raw materials and reduces the cost and weight.

[0023] Through the above structure, the anti-interference ability of the cable is improved, the traditional metal layer stacking mode is not needed, the cost and quality of the cable are effectively reduced, the space structure inside the cable is optimized, the normal bending of the cable is not affected, the staff is facilitated to detect in a complex environment such as a large motor, a transformer or a high-frequency communication device, and the structure is simple, the existing equipment can be produced, and has certain practical value.

[0024] Please refer to the accompanying drawings Figure 2 and the accompanying drawings Figure 3The metal shielding layer 14 is provided with a halogen-free low-smoke flame-retardant layer 15, the thickness of the halogen-free low-smoke flame-retardant layer 15 is 3-4 mm, the thickness of the halogen-free low-smoke flame-retardant layer 15 is the same as the thickness of the butadiene styrene rubber elastic compression-resistant layer 13, the butadiene styrene rubber elastic compression-resistant layer 13 is synthetic rubber which is copolymerized by butadiene and styrene, the elasticity and wear resistance of the butadiene styrene rubber are superior to natural rubber, and the butadiene styrene rubber has good aging resistance and oil resistance, the halogen-free low-smoke flame-retardant layer 15 is externally provided with a neoprene outer sheath 16, the neoprene has the characteristics of good weather resistance, oil resistance and flame retardance, the elastic recovery capacity of the neoprene is also excellent, and the neoprene can bear a certain degree of tensile and compressive deformation, when the cable is subjected to external pressure, the neoprene outer sheath 16 can protect the internal structure of the cable through the elastic deformation of the neoprene outer sheath 16, and due to the good oil resistance of the neoprene, the neoprene is suitable for cables in environments which may contact oil, such as cables used in the petrochemical industry, the thickness of the neoprene outer sheath 16 is 5-8 mm, the wire group is provided with a reinforcing rib 17, and the wire core 11 is wound on the reinforcing rib 17, through the reinforcing rib 17, the bending resistance of the cable is improved, and the stability of the cable as a whole is improved, each wire core 11 comprises a plurality of conductors 111 and an insulating layer 112 which wraps the conductors 111.

[0025] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as the method concept and technical scheme of the utility model are adopted to make such non-essential improvement, or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, all of which are within the protection scope of the utility model.

Claims

1. A compatible cable for instruments, comprising a cable body (1) comprising a wire group comprising a plurality of wire cores (11) intertwined with each other, outside of which a polyvinyl chloride waterproof layer (12) is provided, characterized in that, The polyvinyl chloride waterproof layer (12) is provided with a butadiene styrene rubber elastic compression-resistant layer (13), the butadiene styrene rubber elastic compression-resistant layer (13) is externally provided with a metal shielding layer (14), the metal shielding layer (14) comprises a tinned copper wire (141), the tinned copper wire (141) is wrapped outside the butadiene styrene rubber elastic compression-resistant layer (13), and the tinned copper wire (141) is hollow inside, and the tinned copper wire (141) is externally provided with a metal aluminum layer (142).

2. A universal cable for instrumentation according to claim 1, wherein, The metal shielding layer (14) is provided with a halogen-free low-smoke flame-retardant layer (15), the thickness of the halogen-free low-smoke flame-retardant layer (15) is 3-4 mm, and the thickness of the halogen-free low-smoke flame-retardant layer (15) is the same as the thickness of the butadiene styrene rubber elastic compression-resistant layer (13).

3. A compatible cable for instrumentation according to claim 2, wherein, The halogen-free low-smoke flame-retardant layer (15) is externally provided with a chloroprene rubber outer sheath (16).

4. A compatible cable for instruments according to claim 3, characterized in that, The thickness of the chloroprene rubber outer sheath (16) is 5-8 mm.

5. A universal cable for instrumentation according to claim 1, wherein, The wire group is provided with a reinforcing rib (17), and the wire core (11) is wound on the reinforcing rib (17).

6. A compatible cable for instrumentation according to claim 5, wherein, Each wire core (11) comprises a plurality of conductors (111) and an insulating layer (112) wrapping the conductors (111).

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