CN216597019U

CN216597019U - Impact-resistant and compression-resistant power cable

Info

Publication number: CN216597019U
Application number: CN202122780198.8U
Authority: CN
Inventors: 冯行根; 蒋乐鸣
Original assignee: Wuxi Huangpu Electric Wire & Cable Co ltd
Current assignee: Wuxi Huangpu Electric Wire & Cable Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-24
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses an impact-resistant and compression-resistant power cable which comprises a main cable core and an auxiliary cable core, wherein an inner sheath is arranged outside the main cable core, a plurality of buffer blocks are arranged outside the inner sheath, accommodating grooves are formed in the buffer blocks along the radial direction of the inner sheath, an auxiliary cable core is arranged in each accommodating groove, an outer sheath is arranged outside each buffer block, a buffer layer is arranged in each outer sheath, buffer grooves are formed in the buffer layers and located between every two adjacent buffer blocks, the cross sections of the buffer grooves are of arc structures, the buffer blocks and the buffer layers are made of buffer materials, a flame-retardant layer is arranged outside each outer sheath, a waterproof layer is arranged outside each flame-retardant layer, and a wear-resistant layer is arranged outside each waterproof layer. According to the impact-resistant and compression-resistant power cable, the buffer block and the buffer layer can buffer extrusion and impact, the service performance of the power cable is guaranteed, and the power cable is convenient to popularize and use.

Description

Impact-resistant and compression-resistant power cable

Technical Field

The utility model relates to the technical field of cables, in particular to an impact-resistant and compression-resistant power cable.

Background

With the continuous promotion of the modern construction process, the application of the cable in the building is more and more extensive. The power cable is made of a plurality of mutually insulated cable cores and an outer insulating protection layer, and the power cable is used for transmitting power from one place to another place. In the actual laying process of the power cable, the power cable is likely to collide with other articles or be extruded by other articles, and the existing power cable in the market lacks a certain pressure-proof structure, so that the cable core of the power cable is easy to deform, damage or break due to pressure or impact, and the service performance of the power cable is difficult to ensure. In addition, in the case of a multi-core power cable, when the multi-core power cable is pressed or impacted, the multi-core power cable may be broken due to mutual compression, and short-circuit may occur, which may affect normal use of the power cable.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to overcome the defects in the prior art, the power cable capable of resisting impact and pressure is provided.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an impact-resistant resistance to compression power cable, includes main cable core and vice cable core, the outside of main cable core is provided with the inner sheath, the outside of inner sheath is provided with a plurality of buffers, follow on the buffer block the storage tank has radially been seted up of inner sheath, every set up one in the storage tank the vice cable core, the outside of buffer block is provided with the oversheath, be provided with the buffer layer in the oversheath, lie in adjacent two on the buffer layer the buffering recess has all been seted up to part between the buffer block, the cross-section of buffering recess is the arc structure, the buffer block with the buffer layer is made by buffer material, the outside of oversheath is provided with fire-retardant layer, the outside on fire-retardant layer is provided with the waterproof layer, the outside of waterproof layer is provided with the wearing layer.

Furthermore, the inner side of the buffer block is bonded with the outer wall of the inner sheath, the outer side of the buffer block is bonded with the inner wall of the outer sheath, the inner side of the buffer layer is bonded with the outer wall of the inner sheath, and the outer side of the buffer layer is bonded with the inner wall of the outer sheath.

Furthermore, the buffer grooves are arranged along the extending direction of the main cable core, and the plurality of buffer grooves are all positioned on the same circumference with the center of the main cable core as the circle center.

Further, the number of the buffer blocks is four, and the four buffer blocks are uniformly distributed on the outer peripheral surface of the inner sheath.

Further, the buffer block and the buffer layer are made of natural rubber materials.

Further, the flame retardant layer is made of a polyvinyl chloride material.

Further, the waterproof layer is made of a polytetrafluoroethylene material.

Further, the wear-resistant layer is made of a polyurethane rubber material.

The utility model has the beneficial effects that: according to the impact-resistant and compression-resistant power cable provided by the utility model, when the cable is extruded and impacted by an external force, the buffer block and the buffer layer can deform in a certain amount, so that a good buffer effect is achieved, meanwhile, the auxiliary cable core is arranged in the accommodating groove, and when the buffer block is radially compressed, due to the existence of the accommodating groove, the pressure borne by the auxiliary cable core can be reduced, the auxiliary cable core is further protected, the service performance of the power cable is ensured, and the power cable is convenient to popularize and use.

Drawings

The utility model is further illustrated by the following figures and examples.

Fig. 1 is a schematic structural view of an impact-resistant and compression-resistant power cable of the present invention.

In the figure: 1. the cable comprises a main cable core, 2, an auxiliary cable core, 3, an inner sheath, 4, a buffer block, 41, a containing groove, 5, an outer sheath, 6, a buffer layer, 61, a buffer groove, 7, a flame-retardant layer, 8, a waterproof layer, 9 and a wear-resistant layer.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Referring to fig. 1, the utility model provides an impact-resistant and compression-resistant power cable, which comprises a main cable core 1 and an auxiliary cable core 2, wherein an inner sheath 3 is arranged outside the main cable core 1, a plurality of buffer blocks 4 are arranged outside the inner sheath 3, storage grooves 41 are formed in the buffer blocks 4 along the radial direction of the inner sheath 3, one auxiliary cable core 2 is arranged in each storage groove 41, an outer sheath 5 is arranged outside the buffer blocks 4, a buffer layer 6 is arranged in the outer sheath 5, buffer grooves 61 are formed in the buffer layer 6 between every two adjacent buffer blocks 4, the cross sections of the buffer grooves 61 are arc-shaped, the buffer blocks 4 and the buffer layers 6 are made of buffer materials, a flame-retardant layer 7 is arranged outside the outer sheath 5, a waterproof layer 8 is arranged outside the flame-retardant layer 7, and a wear-resistant layer 9 is arranged outside the waterproof layer 8.

According to the impact-resistant and compression-resistant power cable disclosed by the utility model, when the position, corresponding to the buffer block 4, on the power cable is subjected to radially inward pressure or impact force, the buffer block 4 can deform, so that a buffering effect is achieved, and the main cable core 1 and the auxiliary cable core 2 are prevented from being damaged under pressure. The accommodating groove 41 is used for accommodating the auxiliary cable core 2 on the one hand, and the structural strength of the buffer block 4 is reduced on the other hand, so that the buffer block 4 is deformed when being pressed. When the power cable is pressed inward at a position corresponding to the buffer layer 6, the buffer layer 6 can be deformed, thereby functioning as a buffer force. Meanwhile, the main cable core 1 and the auxiliary cable core 2 are mutually isolated through the buffer block 4 and the inner sheath 3, the conditions of breakage and short circuit caused by mutual extrusion between the main cable core 1 and the auxiliary cable core 2 are reduced, and the service performance of the power cable is ensured.

Specifically, the inner side of the buffer block 4 is bonded with the outer wall of the inner sheath 3, the outer side of the buffer block 4 is bonded with the inner wall of the outer sheath 5, the inner side of the buffer layer 6 is bonded with the outer wall of the inner sheath 3, and the outer side of the buffer layer 6 is bonded with the inner wall of the outer sheath 5. Through fixing buffer block 4 and buffer layer 6 between inner sheath 3 and oversheath 5, promoted the steadiness of structure, avoided misplacing easily between the inside spare part of power cable to influence the normal use of cable. The inner sides of the buffer block 4 and the buffer layer 6 are closer to the main cable core 1, and the outer sides of the buffer block 4 and the buffer layer 6 are farther from the main cable core 1.

Further, the buffer grooves 61 are arranged along the extending direction of the main cable core 1, and the plurality of buffer grooves 61 are all located on the same circumference with the center of the main cable core 1 as the center of circle.

In the present embodiment, the number of the buffer blocks 4 is four, and the four buffer blocks 4 are uniformly distributed on the outer peripheral surface of the inner sheath 3. It is understood that in other embodiments not shown, the buffer blocks 4 may also have two, three or more than four, and the number of the buffer blocks 4 may be determined according to the number of the sub cable cores 2, and is not limited herein.

In addition, the buffer block 4 and the buffer layer 6 are made of natural rubber materials, so that the buffer block can deform when being subjected to external force and restore to the original shape when the external force disappears, and the overall shape of the power cable is further ensured not to be damaged.

In a specific embodiment, the inner sheath 3 and the outer sheath 5 are made of an insulating material, such as silicone or rubber.

In this embodiment, the flame retardant layer 7 is bonded to the outer sheath 5, the waterproof layer 8 is bonded to the flame retardant layer 7, and the wear-resistant layer 9 is bonded to the waterproof layer 8.

In a specific embodiment, the flame retardant layer 7 is made of polyvinyl chloride material to ensure good flame retardant properties of the power cable.

In a specific embodiment, the waterproof layer 8 is made of a polytetrafluoroethylene material to ensure good waterproof performance of the power cable.

In a specific embodiment, the wear-resistant layer 9 is made of a polyurethane rubber material, and the wear-resistant layer 9 can improve the wear resistance of the surface of the power cable, so that the surface of the cable is prevented from being worn when being extruded or impacted by external force, and the internal parts of the cable are well protected.

According to the impact-resistant and compression-resistant power cable provided by the utility model, when the cable is extruded and impacted by an external force, the buffer block 4 and the buffer layer 6 can deform in a certain amount, so that a good buffer effect is achieved, meanwhile, the auxiliary cable core 2 is arranged in the accommodating groove 41, and when the buffer block 4 is compressed in the radial direction, due to the existence of the accommodating groove 41, the pressure on the auxiliary cable core 2 can be reduced, the auxiliary cable core 2 is further protected, the service performance of the power cable is ensured, and the power cable is convenient to popularize and use.

In light of the foregoing description of preferred embodiments in accordance with the utility model, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an impact-resistant resistance to compression power cable, includes main cable core and vice cable core, its characterized in that: the outside of main cable core is provided with the inner sheath, the outside of inner sheath is provided with a plurality of buffers, follow on the buffer block the radial storage tank of having seted up of inner sheath, every set up one in the storage tank the vice cable core, the outside of buffer block is provided with the oversheath, be provided with the buffer layer in the oversheath, lie in adjacent two on the buffer layer the buffering recess has all been seted up to part between the buffer block, the cross-section of buffering recess is the arc structure, the buffer block with the buffer layer is made by buffer material, the outside of oversheath is provided with fire-retardant layer, the outside on fire-retardant layer is provided with the waterproof layer, the outside of waterproof layer is provided with the wearing layer.

2. The impact and compression resistant power cable of claim 1, wherein: the inner side of the buffer block is bonded with the outer wall of the inner sheath, the outer side of the buffer block is bonded with the inner wall of the outer sheath, the inner side of the buffer layer is bonded with the outer wall of the inner sheath, and the outer side of the buffer layer is bonded with the inner wall of the outer sheath.

3. The impact and compression resistant power cable of claim 1, wherein: the buffer grooves are arranged along the extending direction of the main cable core, and the plurality of buffer grooves are all positioned on the same circumference with the center of the main cable core as the circle center.

4. The impact and compression resistant power cable of claim 1, wherein: the buffer blocks are four and are uniformly distributed on the outer peripheral surface of the inner sheath.

5. The impact and compression resistant power cable of claim 1, wherein: the buffer block and the buffer layer are made of natural rubber materials.

6. The impact and compression resistant power cable of claim 1, wherein: the flame-retardant layer is made of polyvinyl chloride material.

7. The impact and compression resistant power cable of claim 1, wherein: the waterproof layer is made of polytetrafluoroethylene materials.

8. An impact-resistant compression-resistant power cable as claimed in claim 1, wherein: the wear-resistant layer is made of a polyurethane rubber material.