Reinforced compression-resistant polyvinyl chloride cable

Abstract

The utility model discloses a reinforced compression-resistant polyvinyl chloride cable, which comprises a flame-retardant layer, wire cores and a filling layer, a protection mechanism is arranged outside the flame-retardant layer, and an insulating layer is fixedly connected in the flame-retardant layer. According to the reinforced compression-resistant polyvinyl chloride cable provided by the utility model, the pressure borne by the cable can be supported through the protection rings, the situation that the flame-retardant layer, the insulating layer and the wire cores are deformed and damaged due to the action of external pressure is reduced, the compression resistance of the cable is improved, and when the pressure borne by the cable acts between the protection rings, the cable is prevented from being damaged. When the pressure is applied to the first protective layer, the pressure acts on the first protective layer, so that the first protective layer deforms to a certain extent, the first protective layer generates elastic force opposite to the pressure in direction, and the external pressure can be resisted to a certain extent by the elastic force of the first protective layer; therefore, the cable core and the insulating layer in the cable are prevented from being damaged due to compression, and the anti-compression capability of the cable is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a reinforced, pressure-resistant polyvinyl chloride cable. Background Technology

[0002] Polyvinyl chloride (PVC) cable is a type of cable that uses polyvinyl chloride as both its insulation and sheath. It possesses excellent electrical properties, corrosion resistance, and weather resistance, and is widely used in low-voltage power transmission, building wiring, and industrial equipment. Due to the strong fire resistance, aging resistance, and low cost of polyvinyl chloride, PVC cables are widely used in many fields.

[0003] For example, Chinese utility model patent (CN216528120U) discloses a reinforced pressure-resistant polyvinyl chloride cable, which states: "The reinforced pressure-resistant polyvinyl chloride cable of this utility model has good conductivity and can connect different cables without the use of tools, making cable connection more convenient. The polyethylene sheath wraps the wire core more tightly, and the wire core is more stable inside the polyethylene sheath." It also states: "Existing reinforced pressure-resistant polyvinyl chloride cables do not have the ability to connect different cables without the use of tools, and the connection between cables is not convenient enough."

[0004] In summary, it can be seen that the existing technology uses clips and blocks to compress and restrict the wire core to make the wire core more stable inside the polyethylene sheath. However, this method has the following technical problems: the above-mentioned cables have relatively few structures to resist external pressure, making the cables unable to effectively resist external pressure. Therefore, this application proposes a reinforced pressure-resistant polyvinyl chloride cable to provide a new technical solution to solve the technical problems mentioned in the above-mentioned patents. Utility Model Content

[0005] Therefore, it is necessary to provide a reinforced, pressure-resistant PVC cable to address the aforementioned technical problems. The protective rings support the cable against pressure, reducing the deformation and damage to the flame-retardant layer, insulation layer, and core caused by external pressure, thus improving the cable's pressure resistance. Furthermore, when pressure is applied between the protective rings, it acts on the first protective layer, causing it to deform to a certain extent. This deformation generates an elastic force in the first protective layer, which resists external pressure, reducing the risk of damage to the cable's core and insulation layer due to compression. The multiple spaced support frames further protect the core, reducing the risk of deformation and damage caused by external pressure, thus improving the device's practicality.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A reinforced, pressure-resistant polyvinyl chloride cable, which is used in cables.

[0008] The reinforced, pressure-resistant polyvinyl chloride cable specifically includes:

[0009] The device comprises a flame-retardant layer, a wire core, and a filler layer. The flame-retardant layer is provided with a protective mechanism on its exterior. An insulating layer is fixedly connected inside the flame-retardant layer. Multiple support frames are fixedly connected inside the insulating layer. The support frames are sleeved on the outside of the wire core. The filler layer fills the gaps in the insulating layer.

[0010] As a preferred embodiment of the reinforced pressure-resistant polyvinyl chloride cable provided by this utility model, the protection mechanism includes a first protective layer, the outer wall of the flame-retardant layer is fixedly connected to the first protective layer, and a plurality of annular cavities are formed in the first protective layer.

[0011] In a preferred embodiment of the reinforced pressure-resistant polyvinyl chloride cable provided by this utility model, a plurality of connecting grooves are provided in the first protective layer and between adjacent annular cavities, and the two ends of the connecting grooves are respectively connected to two adjacent annular cavities.

[0012] As a preferred embodiment of the reinforced and pressure-resistant polyvinyl chloride cable provided by this utility model, the protection mechanism further includes a second protective layer, and the outer wall of the first protective layer is fixedly connected to the second protective layer.

[0013] In a preferred embodiment of the reinforced and pressure-resistant polyvinyl chloride cable provided by this utility model, a plurality of protective rings are fixedly connected to the inner wall of the second protective layer.

[0014] In a preferred embodiment of the reinforced and pressure-resistant PVC cable provided by this utility model, the second protective layer is made of PVC, the protective ring is made of rigid material, the first protective layer is made of silicone rubber, and the support frame is made of polypropylene.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The reinforced pressure-resistant PVC cable provided by this utility model uses protective rings to support the cable under pressure, reducing the deformation and damage to the flame-retardant layer, insulation layer, and core caused by external pressure, thus improving the cable's pressure resistance. When pressure is applied between the protective rings, the pressure is also applied to the first protective layer, causing it to deform to a certain extent. This results in an elastic force in the first protective layer that is opposite to the direction of the pressure, which can resist external pressure to a certain extent. This reduces the possibility of damage to the cable's core and insulation layer due to compression, further improving the cable's pressure resistance. In addition, multiple support frames arranged at intervals can protect the core, reducing the possibility of deformation and damage to the core caused by external pressure, thus improving the practicality of the device.

[0017] The reinforced and pressure-resistant PVC cable provided by this utility model can buffer the impact of external pressure on the cable through the annular cavity and the connecting groove. When the external pressure impacts the second protective layer, the impact will compress the annular cavity in the corresponding area, thereby squeezing the air inside the annular cavity into the connected connecting groove. The compressed air in the annular cavity is then squeezed into the adjacent annular cavity through the connected groove, thus forming a buffering effect. This effectively reduces the direct damage of external impact to the cable and can effectively protect the internal core and insulation layer of the cable. Attached Figure Description

[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A partially enlarged structural schematic diagram of the reinforced, pressure-resistant polyvinyl chloride cable provided by this utility model;

[0020] Figure 2 A schematic diagram of the internal structure of the reinforced, pressure-resistant polyvinyl chloride cable provided by this utility model;

[0021] Figure 3 A front sectional view of the reinforced, pressure-resistant polyvinyl chloride cable provided by this utility model.

[0022] The markings in the diagram are explained as follows:

[0023] 1. Flame-retardant layer; 2. Protective mechanism; 3. Insulation layer; 4. Support frame; 5. Filling layer; 6. Wire core; 7. First protective layer; 8. Annular cavity; 9. Connecting groove; 10. Second protective layer; 11. Protective ring. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] As described in the background art, however, the aforementioned cables have relatively few structures to withstand external pressure, making them unable to effectively resist external pressure.

[0026] To solve this technical problem, this utility model provides a reinforced, pressure-resistant polyvinyl chloride cable, which is used in cables.

[0027] For details, please refer to Figure 1 Reinforced, pressure-resistant PVC cables specifically include:

[0028] It includes a flame-retardant layer 1, a wire core 6 and a filling layer 5. A protective mechanism 2 is provided on the outside of the flame-retardant layer 1. An insulating layer 3 is fixedly connected inside the flame-retardant layer 1. Multiple support frames 4 are fixedly connected inside the insulating layer 3. The support frames 4 are sleeved on the outside of the wire core 6. The filling layer 5 fills the gaps in the insulating layer 3.

[0029] The reinforced pressure-resistant PVC cable provided by this utility model can support the pressure on the cable through the protective ring 11, reducing the deformation and damage to the flame-retardant layer 1, insulation layer 3 and core 6 caused by external pressure, thus improving the cable's pressure resistance. When the pressure on the cable is applied between the protective rings 11, the pressure will act on the first protective layer 7, causing the first protective layer 7 to deform to a certain extent, thereby generating an elastic force in the first protective layer 7 opposite to the pressure direction. The elastic force of the first protective layer 7 can resist the external pressure to a certain extent, thus reducing the damage to the core 6 and insulation layer 3 caused by compression, improving the cable's pressure resistance. Furthermore, the multiple support frames 4 arranged at intervals can protect the core 6, reducing the deformation and damage to the core 6 caused by external pressure, thus improving the practicality of the device.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] Example 1:

[0032] Please refer to Figures 1-3A reinforced, pressure-resistant polyvinyl chloride cable, comprising:

[0033] The protective mechanism 2 includes a first protective layer 7. The outer wall of the flame-retardant layer 1 is fixedly connected to the first protective layer 7. Multiple annular cavities 8 are opened in the first protective layer 7. The interior of the annular cavities 8 can be appropriately filled with materials to mitigate external impacts.

[0034] Multiple connecting grooves 9 are provided within the first protective layer 7 and between adjacent annular cavities 8, with the two ends of the connecting grooves 9 respectively connected to two adjacent annular cavities 8.

[0035] The protection mechanism 2 also includes a second protective layer 10, which is fixedly connected to the outer wall of the first protective layer 7. The second protective layer 10 is made of polyvinyl chloride and provides the cable with chemical resistance, abrasion resistance, weather resistance, fire resistance, insulation and waterproof protection, which can effectively ensure the electrical performance and mechanical strength of the cable.

[0036] Multiple protective rings 11 are fixedly connected to the inner wall of the second protective layer 10. The protective rings 11 can block and support external impacts and pressures falling on the protective rings 11, so as to protect the cable.

[0037] Through the above structural design, the protective ring 11 can support the pressure on the cable, reducing the possibility of deformation and damage to the flame-retardant layer 1, insulation layer 3, and core 6 caused by external pressure. Furthermore, when pressure is applied to the cable between the protective rings 11, the pressure acts on the first protective layer 7, causing it to deform to a certain extent. This results in an elastic force in the first protective layer 7 that is opposite to the direction of the pressure. This elastic force of the first protective layer 7 can resist external pressure to a certain extent, thereby reducing the compression on the core 6 and insulation layer 3 inside the cable. In the event of damage, the annular cavity 8 and the connecting groove 9 can provide some buffering when the cable is subjected to external pressure. When the external pressure impacts the second protective layer 10, the impact will compress the corresponding area of ​​the annular cavity 8, thereby squeezing the air inside the annular cavity 8 into the connected connecting groove 9. This allows the compressed air in the annular cavity 8 to be squeezed into the adjacent annular cavity 8 through the connected connecting groove 9, thus forming a buffering effect. This effectively reduces the direct damage to the cable from external impacts and effectively protects the cable's internal core 6 and insulation layer 3.

[0038] Example 2:

[0039] The reinforced, pressure-resistant PVC cable provided in Example 1 has been further optimized, specifically, as follows: Figure 3 As shown, the second protective layer 10 is made of polyvinyl chloride, the protective ring 11 is made of rigid material, the first protective layer 7 is made of silicone rubber, and the support frame 4 is made of polypropylene.

[0040] Through the above structural design, the second protective layer 10 can provide the cable with chemical resistance, wear resistance, weather resistance, fire resistance, insulation and waterproof protection, which can effectively ensure the electrical performance and mechanical strength of the cable. The rigid protective ring 11 can support and resist some of the external pressure and impact. The polypropylene support frame 4 has advantages such as lightweight and high strength, chemical corrosion resistance, high temperature resistance, impact resistance and low friction.

Claims

1. A reinforced, pressure-resistant polyvinyl chloride cable, characterized in that Including fire -retardant layer (1), core (6) and filling layer (5), the outer of fire -retardant layer (1) is provided with protection mechanism (2), the inside fixedly connected with insulating layer (3) of fire -retardant layer (1), the inside fixedly connected with multiple support frames (4) of insulating layer (3), the outside of support frame (4) is set in core (6), and the gap in insulating layer (3) is filled with filling layer (5).

2. The reinforced, pressure-resistant polyvinyl chloride cable according to claim 1, characterized in that The protection mechanism (2) includes a first protective layer (7), and the outer wall of the fire-retardant layer (1) is fixedly connected with the first protective layer (7). A plurality of annular cavities (8) are formed in the first protective layer (7).

3. The reinforced, pressure-resistant polyvinyl chloride cable of claim 2, wherein, A plurality of communication grooves (9) are formed in the first protective layer (7) and between adjacent annular cavities (8). The two ends of the communication grooves (9) are respectively communicated with the two adjacent annular cavities (8).

4. The reinforced, pressure-resistant polyvinyl chloride cable of claim 2, wherein, The protection mechanism (2) further includes a second protective layer (10), and the outer wall of the first protective layer (7) is fixedly connected with the second protective layer (10).

5. The reinforced, pressure-resistant polyvinyl chloride cable of claim 4, wherein, The inner wall of the second protective layer (10) is fixedly connected with a plurality of protective rings (11).

6. The reinforced, pressure-resistant polyvinyl chloride cable of claim 5, wherein, The second protective layer (10) is made of polyvinyl chloride, the protective rings (11) are made of rigid material, the first protective layer (7) is made of silicone rubber, and the support frames (4) are made of polypropylene.

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