Compression-resistant and impact-resistant power line

Abstract

The utility model relates to the technical field of wires and cables, in particular to a compression-resistant and impact-resistant power line, which comprises a wire core group, a buffer layer extruded outside the wire core group, a shielding layer woven outside the buffer layer and an outer sheath extruded outside the shielding layer, a milk-peak-shaped protruding block located on the inner side of the buffer layer is connected between every two adjacent phase lines in an abutting mode, an inferior-arc-shaped strip for holding and fixing the phase lines is arranged between every two milk-peak-shaped protruding blocks, elastic arms are oppositely arranged on the inferior-arc-shaped strips, the free ends of the two elastic arms are close to each other and folded inwards, and then a second buffer cavity is defined by the free ends of the two elastic arms and the inferior-arc-shaped strips. According to the utility model, the milk peak-shaped protruding blocks are arranged between the adjacent phase lines, and the two elastic arms are symmetrically arranged on the inferior arc-shaped strip for holding and fixing the phase lines, so that when the outer sheath is subjected to external extrusion or impact, the damage of external impact force to the phase lines is well reduced, and the compression resistance and impact resistance of the power line are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric wire and cable, concretely to a power cord of compression resistance and impact resistance. BACKGROUND

[0002] In daily use, household appliances often need to be moved, and the power cord will be subjected to various external forces in the process, such as twisting, extrusion and impact, which are very common. At present, most power cords are simply wrapped with an outer layer, and this design structure has weak impact resistance. Once subjected to strong impact and extrusion, the outer layer is easy to be damaged, thereby causing the conductor to be exposed, and even causing the conductor to be short-circuited, which may cause an electrical hazard. SUMMARY

[0003] The utility model discloses a power cord of compression resistance and impact resistance, which solves the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a power cord of compression resistance and impact resistance, which comprises a core group, a buffer layer extruded on the outside of the core group, a shielding layer woven on the outside of the buffer layer, and an outer covering extruded on the outside of the shielding layer. The core group comprises three phase lines arranged in a triangular shape. A triangular buffer strip is abutted and matched between the three phase lines. Each adjacent phase line is abutted and matched with a milk peak-shaped protruding block integrally formed on the inner side of the buffer layer on the side away from the triangular buffer strip. A poor arc-shaped strip is arranged between each adjacent milk peak-shaped protruding block to hold and fix the phase line. Two elastic arms arranged in opposite directions are fixedly connected to the side of the poor arc-shaped strip away from the phase line. The free ends of the two elastic arms are folded inward and enclose a second buffer cavity with the outer side of the poor arc-shaped strip.

[0005] Optionally, a first buffer cavity in the shape of a crescent moon is formed on each milk peak-shaped protruding block.

[0006] Optionally, the phase line comprises a conductor core and an insulating layer wrapped around the conductor core. The insulating layer is made of perfluoroethylene propylene copolymer material.

[0007] Optionally, the buffer layer, the outer covering and the milk peak-shaped protruding block are all made of polyvinyl chloride material.

[0008] Optionally, the shielding layer is made of tinned copper wire weaving.

[0009] Optionally, the triangular buffer strip, the poor arc-shaped strip and the elastic arm are all made of TPE material.

[0010] Compared with the prior art, the utility model provides a power cord of compression resistance and impact resistance, which has the following beneficial effects:

[0011] The utility model discloses a structure of the power line, including the line core group, the phase line, the buffer layer, the shielding layer, the outer covering, the triangular buffer strip, the peak-shaped convex block, the first buffer cavity, the inferior arc strip and the elastic arm, wherein, the phase line is fixed in the line core group, the buffer layer is fixed on the phase line, the shielding layer is fixed on the buffer layer, the outer covering is fixed on the shielding layer, the triangular buffer strip is fixed on the phase line, the peak-shaped convex block is fixed between the adjacent phase lines, two elastic arms are fixed on the inferior arc strip of the embracing fixed phase line, and the first buffer cavity is fixed on the peak-shaped convex block. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structure schematic diagram of the front view of the utility model;

[0013] Fig. 2 It is the structure schematic diagram of the utility model whole.

[0014] In the drawing: 1, the line core group;101, the phase line;2, the buffer layer;3, the shielding layer;4, the outer covering;5, the triangular buffer strip;6, the peak-shaped convex block;7, the first buffer cavity;8, the inferior arc strip;9, the elastic arm;10, the second buffer cavity. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0016] Embodiment: please refer to Figs. 1-2The utility model provides an anti -pressure impact -resistant power line, including the core group 1, the buffer layer 2 of extruding in the core group 1 outside, the shielding layer 3 of weaving in the buffer layer 2 outside, the shielding layer 3 is made of tinned copper wire weaving and the outer sheath 4 of extruding in the shielding layer 3 outside, the core group 1 includes three phase lines 101 of triangle distribution, and the phase line 101 includes the lead core and the insulating layer of covering in the lead core outside, and the insulating layer is made of perfluoroethylene propylene copolymer material, and one triangle buffer strip 5 is abutted with between three phase lines 101, and one block of the milk peak shaped protruding block 6 of integrally forming in the buffer layer 2 inside is abutted with between every adjacent phase line 101 and the side away from the triangle buffer strip 5, and the buffer layer 2, the outer sheath 4 and the milk peak shaped protruding block 6 are made of polyvinyl chloride material, and one arc strip 8 of holding fixed phase line 101 is arranged between every adjacent milk peak shaped protruding block 6, and two elastic arms 9 of opposite vertical setting are fixedly connected to the side of the arc strip 8 away from phase line 101, and the free end of two elastic arms 9 is close to each other and is folded inwards and is surrounded with the outside of arc strip 8 and has second buffer cavity 10, and the triangle buffer strip 5, arc strip 8 and elastic arm 9 are made of TPE material, further, when the outer sheath 4 suffers external extrusion or impact, the external force will be transmitted to the buffer layer 2, and the buffer layer 2 in turn acts on the milk peak shaped protruding block 6, and the milk peak shaped protruding block 6 carries out force buffering first through the first buffer cavity 7 arranged therein and transmits the remaining force to the phase line 101, and the phase line 101 transmits the force received to the elastic arm 9 through the arc strip 8, and the elastic arm 9 carries out second step force buffering by virtue of the elasticity of itself and the second buffer cavity 10 surrounded with the outside of arc strip 8, and gradually reduces the damage caused by impact force to the phase line 101 through such step-by-step buffering, thereby effectively enhancing the anti -pressure impact -resistant power line.

[0017] In view of the principle of the utility model is relatively simple and clear, and has been described in detail in the foregoing, here will not repeat.

[0018] It should be noted that, in this article, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0019] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant and shock-resistant power cord, comprising a core assembly (1), a buffer layer (2) extruded over the core assembly (1), a shielding layer (3) braided over the buffer layer (2), and an outer sheath (4) extruded over the shielding layer (3), characterized in that: The core assembly (1) includes three phase wires (101) arranged in a triangle. A triangular buffer strip (5) is abutted between the three phase wires (101). A nipple-shaped protrusion (6) integrally formed on the inner side of the buffer layer (2) is abutted between each adjacent phase wire (101) on the side away from the triangular buffer strip (5). A minor arc strip (8) is provided between each adjacent nipple-shaped protrusion (6) to hug and fix the phase wire (101). Two relatively vertical elastic arms (9) are fixedly connected on the side of the minor arc strip (8) away from the phase wire (101). The free ends of the two elastic arms (9) approach each other and fold inward to form a second buffer cavity (10) with the outside of the minor arc strip (8).

2. The pressure-resistant and shock-resistant power cord according to claim 1, characterized in that: Each of the aforementioned nipple-shaped protrusions (6) has a crescent-shaped first buffer cavity (7).

3. The pressure-resistant and shock-resistant power cord according to claim 1, characterized in that: The phase wire (101) includes a conductor core and an insulating layer covering the conductor core, the insulating layer being made of perfluoroethylene propylene copolymer.

4. The pressure-resistant and shock-resistant power cord according to claim 1, characterized in that: The buffer layer (2), outer sheath (4), and nipple-shaped protrusions (6) are all made of polyvinyl chloride.

5. A power cord resistant to pressure and impact according to claim 1, characterized in that: The shielding layer (3) is made of tin-plated copper wire.

6. The pressure-resistant and shock-resistant power cord according to claim 1, characterized in that: The triangular buffer strip (5), the inferior arc strip (8), and the elastic arm (9) are all made of TPE material.

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