Polyvinyl chloride sheath flat cable

Abstract

The utility model relates to the technical field of flat cables, in particular to a polyvinyl chloride sheath flat cable, which comprises three wire cores, the three wire cores are arranged at equal intervals, a stable structure is arranged on the surface of each wire core, the stable structure comprises a protective sleeve, the protective sleeve is sleeved on the wire cores, and the polyvinyl chloride sheath is arranged on the protective sleeve. An air bag is arranged between every two adjacent wire cores, one side of each air bag is fixedly connected with a first connecting strip, and the end, away from the corresponding air bag, of each first connecting strip is fixedly connected with the surface of the protective sleeve. According to the technical scheme of the utility model, the internal structure of the cable is effectively improved, and when the cable is deformed under the action of external force, the internal air bag can be used for buffering and providing balanced supporting force for the cable, so that the cable can keep stable in shape under different working conditions, the electrical performance is prevented from being influenced by structural deformation, and the service life of the cable is prolonged. Stable use of the cable is ensured, and the service life of the cable is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to flat cable technical field especially relates to a polyvinyl chloride sheath flat cable. BACKGROUND

[0002] Flat cable is a kind of cable with flat shape, it is usually composed of multiple wires, wrapped with insulation layer and sheath outside, the design of flat cable has unique advantages, on the one hand, its flat shape makes it more convenient to install and wire, can easily pass through narrow space or along the irregular surface laying, especially suitable for some space-limited occasions, such as the wiring inside the equipment such as elevator, crane.

[0003] The prior art such as the utility model with publication number CN216435487U discloses a polyvinyl chloride butyronitrile composite material outer sheath flat anti-piezoelectric cable, which comprises an outer sheath, an inner sheath and a wire assembly, the outer sheath, the inner sheath and the wire assembly are distributed from outside to inside in turn, the number of the wire assembly is four, and the outer surface of the outer sheath is glued with an outer insulation layer. The polyvinyl chloride butyronitrile composite material outer sheath flat anti-piezoelectric cable has the advantages that multiple wire assemblies are arranged flatly, the flat shape of the cable improves the overall compression resistance, the outer insulation layer isolates the external power supply, and the waterproof layer effectively prevents rainwater from penetrating into the interior. The polyvinyl chloride butyronitrile composite material outer sheath flat anti-piezoelectric cable has a flat shape, so that the compression resistance of the cable is improved, and the protection performance is good. In addition, the wire assembly can be insulated and waterproofed during protection.

[0004] At present, the wires in most flat cables are usually arranged horizontally, when the cable is subjected to external impact, the wire cores are easily directly extruded and impacted, leading to damage of the wire cores, and at the same time, the wire cores are prone to position deviation and winding in the cable, which not only affects the stability of signal transmission, but also may cause damage of the insulation layer due to friction between the wire cores during long-term use, increasing the risk of short circuit. Therefore, improvement is needed. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art that most flat cables usually arrange wires horizontally, when the cable is subjected to external impact, the wire cores are easily directly extruded and impacted, leading to damage of the wire cores, and at the same time, the wire cores are prone to position deviation and winding in the cable, which not only affects the stability of signal transmission, but also may cause damage of the insulation layer due to friction between the wire cores during long-term use, increasing the risk of short circuit, and proposes a polyvinyl chloride sheath flat cable.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a polyvinyl chloride sheathed flat cable, comprising three cores, the three cores being arranged at equal intervals, the surface of the core being provided with a stabilizing structure, the stabilizing structure comprising a protective cover, the protective cover being sleeved on the core, an air bag being provided between two adjacent cores, a first connecting strip being fixedly connected to one side of the air bag, the end of the first connecting strip away from the air bag being fixedly connected to the surface of the protective cover, a buffer layer being sleeved on the protective cover, the surface of the buffer layer being provided with a protective structure, the three protective covers wrapping the cores, helping to maintain the relative position of the cores stable and prevent excessive displacement and entanglement between the cores, the present solution effectively improves the internal structure of the cable, when the cable is deformed by external force, the internal air bag can provide buffering and provide balanced support force for the cable, so that the cable can maintain a stable shape under different working conditions, avoid affecting the electrical performance due to structural deformation, ensure the stable use of the cable, and improve the service life of the cable.

[0007] Preferably, the number of the airbags is two, and the two airbags are symmetrically arranged. The airbags between adjacent cores play a key buffering role. When the cable is squeezed, stretched or vibrated by external force, the airbags can absorb and disperse energy through their own elastic deformation. The first connecting strip connects the airbag to the protective cover, so that the buffering effect of the airbag can be effectively transmitted to the core and helps to fix the position of the airbag. The second connecting strip further enhances the connection stability between the airbag and the external structure, and can evenly disperse and transmit the force when the cable is subjected to external force.

[0008] Preferably, the upper and lower surfaces of the airbag are fixedly connected with two symmetrically arranged second connecting strips. The second connecting strips on the upper and lower surfaces of the airbag, together with the filling layer, not only enhance the structural strength, but also help buffer external force impact to a certain extent.

[0009] Preferably, the two second connecting strips are both inclined, and are arranged in a mirror image to ensure stable use of the cable.

[0010] Preferably, a filling layer is provided between the two second connecting strips and the airbag to disperse the force exerted on the second connecting strips.

[0011] Preferably, the number of the first connecting strips is two, and the two first connecting strips are respectively located on both sides of the airbag to establish a stable connection between the airbag and the protective cover.

[0012] Preferably, the protection structure comprises a reinforcing layer, the reinforcing layer is sleeved on the buffer layer and the filling layer, one end of the second connecting strip away from the air bag is fixedly connected with the inner wall of the reinforcing layer, the side of the reinforcing layer away from the buffer layer is provided with a shielding layer, and the side of the shielding layer away from the reinforcing layer is provided with a sheath layer, the reinforcing layer is sleeved on the buffer layer and the filling layer, as an enhanced part of the overall structure, the tensile and extrusion resistance of the cable is improved, the second connecting strip is fixedly connected with the inner wall of the reinforcing layer, so that the buffer supporting effect of the air bag and the reinforcing effect of the reinforcing layer are combined to resist external forces together, the internal wire core and other structures are protected, the sheath layer effectively protects the internal structure, and stable use of the cable is ensured.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1、the reinforcing layer is sleeved on the buffer layer and the filling layer, as an enhanced part of the overall structure, the tensile and extrusion resistance of the cable is improved, the second connecting strip is fixedly connected with the inner wall of the reinforcing layer, so that the buffer supporting effect of the air bag and the reinforcing effect of the reinforcing layer are combined to resist external forces together, the internal wire core and other structures are protected, the sheath layer effectively protects the internal structure, and stable use of the cable is ensured, three protective sheaths are wrapped around the wire core, which helps to maintain the relative position stability of the wire core, prevents excessive displacement and winding between the wire cores, and the air bags between adjacent wire cores play a key buffering role, when the cable is extruded, stretched or vibrated by external force, the air bag can absorb and disperse energy through its elastic deformation, the first connecting strip connects the air bag and the protective sheath, so that the buffering effect of the air bag can be effectively transmitted to the wire core, and the position of the air bag is fixed, and the second connecting strip further enhances the connection stability of the air bag and the external structure, when the cable is subjected to external force, the force can be evenly dispersed and transmitted, the second connecting strips on the upper and lower surfaces of the air bag together with the filling layer enhance the structural strength and assist in buffering external force impact to a certain extent, the scheme effectively improves the internal structure of the cable, the internal air bag can be buffered when the cable is deformed by external force, and balanced supporting force is provided for the cable, so that the cable can maintain shape stability under different working conditions, avoids affecting electrical performance due to structural deformation, ensures stable use of the cable, and prolongs the service life of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic diagram of the polyvinyl chloride sheathed flat cable is provided for the utility model;

[0016] Figure 2 An internal structure schematic diagram of the polyvinyl chloride sheathed flat cable is provided for the utility model;

[0017] Figure 3The utility model provides a kind of polyvinyl chloride sheath flat cable Figure 2 Structure schematic diagram of A in it;

[0018] Figure 4 The utility model provides a kind of polyvinyl chloride sheath flat cable's section structure schematic diagram.

[0019] Legend:

[0020] 1, core; 2, protective structure; 21, sheath layer; 22, shielding layer; 23, reinforcing layer; 3, stabilizing structure; 31, protective sleeve; 32, filling layer; 33, first connecting strip; 34, second connecting strip; 35, buffer layer; 36, air bag. Specific implementation

[0021] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of polyvinyl chloride sheath flat cable, including core 1, the number of core 1 is three, three core 1 is equidistantly arranged between, the surface of core 1 is provided with stabilizing structure 3, stabilizing structure 3 includes protective sleeve 31, protective sleeve 31 is set on core 1, air bag 36 is provided between adjacent two core 1, one side of air bag 36 is fixedly connected with first connecting strip 33, the end of first connecting strip 33 away from air bag 36 is fixedly connected with the surface of protective sleeve 31, protective sleeve 31 is set with buffer layer 35, the surface of buffer layer 35 is provided with protective structure 2, three protective sleeves 31 are wrapped core 1, help to maintain the relative position stability of core 1, prevent excessive displacement and entanglement between core 1, the scheme is effectively improved to the internal structure of cable, when cable is deformed under external force, buffer can be carried out through internal air bag 36, and balanced support force is provided for cable, so that cable can keep shape stable under different working conditions, avoid that structure deformation influences electrical property, ensure the stable use of cable, improve the service life of cable.

[0022] In the embodiment: the number of air bag 36 is two, two air bags 36 are symmetrically arranged, air bag 36 between adjacent core 1 plays a key buffering role, when cable is extruded, stretched or vibrated by external force, air bag 36 can absorb and disperse energy through the elastic deformation of itself, first connecting strip 33 connects air bag 36 with protective sleeve 31, so that the buffering effect of air bag 36 can be effectively transmitted to core 1, and help to fix the position of air bag 36, second connecting strip 34 further enhances the connection stability of air bag 36 and external structure, when cable is subjected to external force, can evenly disperse and transmit force.

[0023] Specifically, the upper surface and the lower surface of the air bag 36 are fixedly connected with two symmetrically arranged second connecting strips 34, and the second connecting strips 34 on the upper and lower surfaces of the air bag 36 together with the filling layer 32 not only enhance the structural strength, but also assist in buffering the external force impact to a certain extent.

[0024] Specifically, the two second connecting strips 34 are both in an inclined shape, and the two second connecting strips 34 are mirror image arranged, so as to ensure the stable use of the cable.

[0025] Specifically, the filling layer 32 is arranged between the two second connecting strips 34 and the air bag 36, so as to disperse the force borne by the second connecting strip 34.

[0026] Specifically, the number of the first connecting strips 33 is two, and the two first connecting strips 33 are respectively located on the two sides of the air bag 36, so as to establish the stable connection between the air bag 36 and the protective sleeve 31.

[0027] In the embodiment, the protection structure 2 includes a reinforcing layer 23, the reinforcing layer 23 is sleeved on the buffer layer 35 and the filling layer 32, one end of the second connecting strip 34 away from the air bag 36 is fixedly connected with the inner wall of the reinforcing layer 23, the reinforcing layer 23 is provided with a shielding layer 22 away from the buffer layer 35, the shielding layer 22 is provided with a sheath layer 21 away from the reinforcing layer 23, the reinforcing layer 23 is sleeved on the buffer layer 35 and the filling layer 32, and serves as an enhanced part of the overall structure, so as to improve the tensile and extrusion resistance of the cable, the second connecting strip 34 is fixedly connected with the inner wall of the reinforcing layer 23, so that the buffering and supporting effect of the air bag 36 is combined with the reinforcing effect of the reinforcing layer 23, and the external force is resisted together, so as to protect the internal wire core 1 and other structures, the sheath layer 21 effectively protects the internal structure, and ensures the stable use of the cable.

[0028] Working principle: the reinforcing layer 23 is sleeved on the buffer layer 35 and the filling layer 32, as the reinforcing part of the overall structure, improving the tensile and extrusion resistance of the cable, the second connecting strip 34 is fixedly connected with the inner wall of the reinforcing layer 23, so that the buffer supporting effect of the air bag 36 is combined with the reinforcing effect of the reinforcing layer 23, and the external force is resisted together, the internal core 1 and other structures are protected, the sheath layer 21 effectively protects the internal structure, ensures the stable use of the cable, the three protective sleeves 31 wrap the core 1, which helps to maintain the relative position of the core 1 stable, prevents excessive displacement and winding between the cores 1, the air bag 36 between adjacent cores 1 plays a key buffering role, when the cable is extruded, stretched or vibrated by external force, the air bag 36 can absorb and disperse energy through its elastic deformation, the first connecting strip 33 connects the air bag 36 and the protective sleeve 31, so that the buffering effect of the air bag 36 can be effectively transmitted to the core 1, and helps to fix the position of the air bag 36, the second connecting strip 34 further enhances the connection stability of the air bag 36 and the external structure, when the cable is subjected to external force, the force can be uniformly dispersed and transmitted, the second connecting strip 34 on the upper and lower surfaces of the air bag 36 together with the filling layer 32 not only enhances the structural strength, but also assists to buffer the external force impact to a certain extent, the scheme effectively improves the internal structure of the cable, when the cable is deformed under external force, the internal air bag 36 can buffer and provide balanced supporting force for the cable, so that the cable can maintain stable shape under different working conditions, avoid affecting the electrical performance due to structural deformation, ensure the stable use of the cable, and prolong the service life of the cable.

Claims

1. A polyvinyl chloride sheathed flat cable, comprising a core (1), wherein the number of the cores (1) is three and the three cores (1) are arranged at equal intervals, and wherein: The surface of the wire core (1) is provided with a stabilizing structure (3), the stabilizing structure (3) comprises a protective cover (31), the protective cover (31) is sleeved on the wire core (1), an air bag (36) is provided between two adjacent wire cores (1), one side of the air bag (36) is fixedly connected to a first connecting strip (33), an end of the first connecting strip (33) away from the air bag (36) is fixedly connected to the surface of the protective cover (31), a buffer layer (35) is sleeved on the protective cover (31), and a protective structure (2) is provided on the surface of the buffer layer (35).

2. The polyvinyl chloride sheathed flat cable according to claim 1, characterized in that: The number of the airbags (36) is two, and the two airbags (36) are symmetrically arranged.

3. The polyvinyl chloride sheathed flat cable according to claim 1, characterized in that: The upper surface and the lower surface of the airbag (36) are both fixedly connected to two symmetrically arranged second connecting strips (34).

4. The polyvinyl chloride sheathed flat cable according to claim 3, characterized in that: The two second connecting bars (34) are both inclined, and the two second connecting bars (34) are arranged in a mirror image.

5. The polyvinyl chloride sheathed flat cable according to claim 3, characterized in that: A filling layer (32) is provided between the two second connecting strips (34) and the airbag (36).

6. The polyvinyl chloride sheathed flat cable according to claim 1, characterized in that: The number of the first connecting strips (33) is two, and the two first connecting strips (33) are respectively located on both sides of the airbag (36).

7. The polyvinyl chloride sheathed flat cable according to claim 3, characterized in that: The protective structure (2) comprises a reinforcing layer (23), the reinforcing layer (23) being sleeved on the buffer layer (35) and the filling layer (32), the second connecting strip (34) having an end away from the airbag (36) being fixedly connected to the inner wall of the reinforcing layer (23), a shielding layer (22) being provided on a side of the reinforcing layer (23) away from the buffer layer (35), and a sheath layer (21) being provided on a side of the shielding layer (22) away from the reinforcing layer (23).

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