Elastic cable with compression-resistant inner framework

Abstract

The utility model discloses an inner skeleton compression-resistant elastic cable, which comprises a skeleton shaft arranged at the innermost side, the skeleton shaft is consistent with the length extension direction of the cable, four vertical plate skeletons which are uniformly arranged at intervals are also arranged on the skeleton shaft, the four vertical plate skeletons are arranged in a crossed manner, and elastic sheets are also correspondingly arranged between adjacent vertical plate skeletons. And an internal cable core is correspondingly arranged at the outer side part of the elastic sheet and is correspondingly pressed on the elastic sheet. According to the utility model, the inner armor layer is arranged in the inner cable core, and the outer armor layer is correspondingly arranged on the outer side of the whole cable, so that through the design of the double armor layers, the anti-pressure capability of the whole cable is enhanced, and the structural design is reasonable; according to the utility model, the internal skeleton structure is arranged, firstly, the skeleton shaft is arranged, the four vertical plate skeletons are arranged on the skeleton shaft, the end parts of the four vertical plate skeletons are correspondingly provided with the elastic sheets, the compression resistance and elastic reset functions of the cable are realized through the design of the elastic sheets, and the structure arrangement is reasonable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the anti -pressure cable technical field among cable technology, specifically say a kind of inner framework anti -pressure elastic cable. BACKGROUND

[0002] In prior art, in addition to the need for good signal and power transmission performance, it should also have good compression resistance, bending resistance, tensile resistance, fire and water resistance and other properties; And especially the compression resistance is more important, there are various compression resistance technical means in prior art cable technology.

[0003] For example: the "low-temperature-resistant and pressure-resistant cable" disclosed in publication (announcement) No. CN118398297A, which includes a cable outer protective sleeve and a cable core, and the inner wall of the cable outer protective sleeve is provided with a pressure-resistant component; the pressure-resistant component includes an armored shell and an inner armored layer, and the inner armored layer is provided with a locking component, and the inside of the pressure-resistant component is further provided with a stabilizing component. The present application sets the pressure-resistant component inside the cable outer protective sleeve, and cooperates with the armored shell, inner armored layer, sleeve, compression plate and push rod to form a pressure-resistant cavity inside the armored shell when the cable is extruded, so as to improve the compression resistance.

[0004] For example: the "pressure-resistant and fireproof cable" disclosed in publication (announcement) No. CN114864167B, which includes a cable body and a cable core arranged inside the cable body, and the outer wall of the cable core is provided with a core protection layer, the protection piece is used for anti-pressure protection of the cable body, and the kiss connection between the splicing clamping block and the splicing clamping groove is used for reinforcing the connection between the protection piece and the cable body. The pressure-resistant and fireproof cable can first use the protection piece to protect the outside of the cable body from impact, use the elastic metal characteristics of the internal heat dissipation metal strip to protect the inside of the cable from impact, secondly, use the heat conduction method to dissipate heat quickly through the connection between the metal strip and the protection piece, and use the characteristic of metal strip memory alloy returning to original state at high temperature to make the metal strip return to original state quickly and wrap around the ignition point when fire occurs in the cable, effectively avoiding the spread of fire.

[0005] The anti-pressure cable in the technical scheme has a layered structure to achieve the anti-pressure function, and the most commonly used anti-pressure layered structure is a sheath layer or a metal layer structure to achieve the anti-pressure function. However, the anti-pressure cable with the sheath layer or the metal layer structure has certain anti-pressure capacity when subjected to specific pressure, but the recovery capacity after pressure is weak, and the cable has poor elasticity and is not good at preventing extrusion and rotation displacement. The cable may be displaced when extruded, and the existing rigid cable cannot be effectively reset.

[0006] Therefore, in order to solve the above problems, it is necessary to develop an inner framework anti-pressure elastic cable with reasonable structure and strong anti-pressure capacity. Content of the utility model

[0007] The utility model aims at the deficiency of the prior art, and provides an inner framework anti-pressure elastic cable.

[0008] An inner framework anti-pressure elastic cable comprises a framework shaft arranged at the innermost side, the framework shaft is consistent with the length extension direction of the cable, four uniformly spaced vertical plate frameworks are further arranged on the framework shaft, the four vertical plate frameworks are arranged in a cross shape, and elastic sheets are further arranged between adjacent vertical plate frameworks, the elastic sheets are made of elastic material, internal cable cores are arranged at the outer side of the elastic sheets, and the internal cable cores are pressed on the elastic sheets.

[0009] An internal wrapping layer is arranged at the outer side of the internal cable cores and the vertical plate frameworks, the end part of the vertical plate framework and the internal cable core on the elastic sheet are wrapped by the internal wrapping layer, an external sheath layer is further arranged at the outer side of the wrapping layer, and an outer protective sheath is arranged at the outer side of the external sheath layer.

[0010] Further, the framework shaft is provided with elastic supports, the elastic supports are arranged between every two adjacent vertical plate frameworks, and the elastic supports are supported and fixed on the elastic sheets.

[0011] Further, the elastic support comprises a sleeve arranged on the framework shaft and a support shaft sleeved in the sleeve, the sleeve is open at the upper end, a spring is arranged in the sleeve, the support shaft is arranged in the sleeve from the opening, the support shaft presses the spring, and the end part of the support shaft is supported and fixed on the elastic sheet.

[0012] Further, the elastic sheet is arranged in an arc shape, and the elastic sheet is arranged to bend towards the inner side of the vertical plate framework when arranged.

[0013] Further, two internal cable cores are arranged in axial symmetry with the elastic support as the axis, and the elastic support supports the two internal cable cores.

[0014] Further, the gap between the internal cable core, the spring sheet and the wrapping layer is filled with fiber material.

[0015] Further, the internal cable core comprises a conductor arranged at the innermost layer, an insulation layer outside the conductor, a shielding layer outside the insulation layer, an inner armor layer outside the shielding layer, and an inner sheath outside the inner armor layer.

[0016] Further, the inner armor layer and the outer armor layer are arranged in the form of metal wires, and the armor layer in the form of metal wires can effectively increase the compression resistance.

[0017] Beneficial effects: the utility model has the following beneficial effects:

[0018] 1) in the utility model, the inner armor layer is arranged in the internal cable core, and the outer armor layer is arranged outside the overall cable, the double-layer armor layer design can strengthen the compression resistance of the overall cable, and the structure design is reasonable;

[0019] 2) in the utility model, the internal framework structure is arranged, first, the framework shaft is arranged, four vertical plate frameworks are arranged on the framework shaft, and the spring sheet is arranged at the end of the four vertical plate frameworks, the spring sheet design can realize the compression resistance and elastic reset function of the cable, and the structure is reasonably arranged;

[0020] 3) in the utility model, in addition to the spring sheet with the elastic function, the elastic support is arranged, the elastic support can further increase the compression resistance and reset function of the spring sheet, and the overall structure is more reasonable;

[0021] 4 in the utility model, two internal cable cores are arranged outside each spring sheet, on the one hand, the spring sheet is in the form of an arc, and is used for placing two internal cable cores, the space size is reasonable, and too much spare area is not generated; in addition, the arrangement of multiple internal cable cores is helpful to increase the transmission efficiency, and the structure is reasonably arranged. DRAWINGS

[0022] Figure 1 is a structural diagram of the utility model;

[0023] Figure 2 is Figure 1 is an enlarged view of A in the utility model;

[0024] Figure 3 is a framework shaft structure diagram in the utility model;

[0025] Figure 4The internal cable core structure diagram in the utility model;

[0026] The skeleton shaft 1, the vertical plate skeleton 2, the elastic sheet 3, the internal cable core 4, the conductor 401, the insulating layer 402, the shielding layer 403, the internal armoring layer 404, the internal sheath 405, the wrapping layer 5, the external armoring layer 6, the external sheath 7, the elastic supporting piece 8, the fiber material 9, the sleeve piece 81, the supporting shaft 82 and the spring piece 83 are sequentially arranged. DETAILED DESCRIPTION

[0027] The utility model is further illustrated in combination with the drawings and specific embodiments, and the embodiments are implemented under the premise of the technical scheme of the utility model, and it should be understood that the embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model.

[0028] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, an internal skeleton compression-resistant elastic cable comprises a skeleton shaft 1 arranged at the innermost side, the skeleton shaft 1 is consistent with the length extension direction of the cable, and four uniformly spaced vertical plate skeletons 2 are further arranged on the skeleton shaft 1, the four vertical plate skeletons 2 are arranged in a cross shape, and an elastic sheet 3 is further arranged between adjacent vertical plate skeletons 2, the elastic sheet 3 is made of elastic material, and an internal cable core 4 is arranged at the outer side of the elastic sheet 3, and the internal cable core 4 is pressed on the elastic sheet 3.

[0029] A wrapping layer 5 is arranged outside the internal cable core 4 and the vertical plate skeleton 2, the end of the vertical plate skeleton 2 and the internal cable core 4 on the elastic sheet 3 are wrapped by the wrapping layer 5 to form an internal wrapping cable, an external armoring layer 6 is further arranged outside the wrapping layer 5, and an external sheath 7 is arranged outside the external armoring layer 6.

[0030] An elastic supporting piece 8 is arranged on the skeleton shaft 1, the elastic supporting piece 8 is arranged between every two adjacent vertical plate skeletons 2, and the elastic supporting piece 8 is supported and fixed on the elastic sheet 3.

[0031] The elastic supporting piece 8 comprises a sleeve piece 81 fixedly arranged on the skeleton shaft 1 and a supporting shaft 82 sleeved in the sleeve piece 81, the sleeve piece 81 is open at the upper end, a spring piece 83 is arranged in the sleeve piece 81, the supporting shaft 82 is arranged in the sleeve piece 81 from the opening, and the supporting shaft 82 supports and fixes the spring piece 83.

[0032] The elastic sheet 3 is arranged in an arc shape, and the elastic sheet 3 is arranged to bend towards the inside of the vertical plate skeleton 2 when arranged.

[0033] Two internal cable cores 4 are arranged in axial symmetry through the elastic support 8 corresponding to each side of the spring piece 3.

[0034] The gap between the internal cable core 4, the spring piece 3 and the wrapping layer 5 is filled with fiber material 9. The internal cable core 4 comprises a conductor 401 arranged in the innermost layer, an insulation layer 402 arranged outside the conductor 401, a shielding layer 403 arranged outside the insulation layer 402, an inner armor layer 404 arranged outside the shielding layer 403, and an inner sheath 405 arranged outside the inner armor layer 404.

[0035] The cable has the following specific structure: it comprises an internal cable core and a whole framework, wherein the internal cable core comprises a conductor, an insulation layer, a shielding layer, an inner armor layer and an inner sheath.

[0036] In addition, the whole framework is arranged as follows: a framework shaft is arranged as a base, the extension direction of the framework shaft is consistent with the direction of the cable, four vertical plate frameworks are arranged on the framework shaft at equal intervals, the vertical plate frameworks are arranged to install the spring pieces, the spring pieces are installed at the ends of every two adjacent vertical plate frameworks, and the spring pieces are arranged in a concave arc structure.

[0037] Two internal cable cores are arranged on the outer side of each spring piece, which is reasonable in terms of space size and does not cause too much free area.

[0038] Therefore, when the whole cable structure is subjected to external pressure, the internal cable core is pressed down to press the spring piece, the spring piece has good compression resistance and elasticity, and after the external pressure disappears, the internal cable core can be restored to the original position through the spring piece, and has good compression resistance.

[0039] And in order to further increase the overall cable compression resistance, the device is provided with elastic support on the framework shaft, which is first installed between every two adjacent vertical plate frameworks, and is staggered with the vertical plate framework in position, and is reasonably installed; in addition, it is correspondingly composed of sleeve, support shaft and spring, and the support shaft is correspondingly supported and fixed on the arc-shaped elastic sheet, so that when the internal cable core is pressed on the elastic sheet under external pressure, the internal elastic support will also support the elastic sheet, and the elastic sheet will be reset under the action of the internal spring, and the structure design is very reasonable.

[0040] The above specific embodiment is only a preferred embodiment of the present application, and is not intended to limit the implementation and the scope of claims of the present application. Any equivalent changes and modifications made according to the content of the patent protection scope of the present application should be included in the patent application scope of the present application.

Claims

1. An endoskeletal crush-resistant electrical cable characterized by: The skeleton shaft (1) is arranged at the innermost position and is consistent with the length extension direction of the cable, four vertical plate skeletons (2) are arranged on the skeleton shaft (1), the four vertical plate skeletons (2) are arranged in a cross shape, and elastic sheets (3) are arranged between the adjacent vertical plate skeletons (2); the elastic sheets (3) are made of elastic material, and internal cable cores (4) are arranged on the outer side of the elastic sheets (3); the internal cable cores (4) are pressed on the elastic sheets (3); a wrapping layer (5) is arranged on the outer side of the internal cable cores (4) and the vertical plate skeletons (2); the end of the vertical plate skeleton (2) and the internal cable core (4) on the elastic sheet (3) are wrapped by the wrapping layer (5) to form an internal wrapping cable; and the wrapping layer (5) is wrapped by an outer armor layer (6), and the outer armor layer (6) is wrapped by an outer sheath (7). The elastic support (8) is arranged on the skeleton shaft (1), the elastic support (8) is arranged between every two adjacent vertical plate skeletons (2), and the elastic support (8) is supported and fixed on the elastic sheet (3).

2. An endoskeletal crush-resistant electrical cable according to claim 1, characterised in that: The elastic support (8) comprises a sleeve (81) arranged on the skeleton shaft (1) and a support shaft (82) sleeved in the sleeve (81), the sleeve (81) is open at the upper end, a spring (83) is arranged in the sleeve (81), the support shaft (82) is arranged in the sleeve (81) from the opening, and the spring (83) is pressed by the support shaft (82), and the end of the support shaft (82) is supported and fixed on the elastic sheet (3).

3. An endoskeletal crush-resistant electrical cable according to claim 2, characterised in that: The elastic sheet (3) is arranged in an arc shape, and the elastic sheet (3) is arranged to be curved to the inner side of the vertical plate skeleton (2) when being arranged.

4. An endoskeletal crush-resistant electrical cable according to claim 1, characterized in that: Two internal cable cores (4) are arranged on the outer side of each elastic sheet (3), the two internal cable cores (4) are arranged symmetrically with the elastic support (8) as the axis, and the two internal cable cores (4) are supported by the elastic support (8).

5. An endoskeletal crush-resistant electrical cable according to claim 2, characterised in that: Fiber material (9) is filled in the gap between the internal cable core (4), the elastic sheet (3) and the wrapping layer (5).

6. An endoskeletal crush-resistant electrical cable according to claim 5, characterised in that: The internal cable core (4) comprises a conductor (401) arranged at the innermost position, an insulation layer (402) arranged outside the conductor (401), a shielding layer (403) arranged outside the insulation layer (402), an inner armor layer (404) arranged outside the shielding layer (403), and an inner sheath (405) arranged outside the inner armor layer (404).

7. An endoskeletal crush-resistant electrical cable according to claim 5, characterised in that: The inner armor layer (404) and the outer armor layer (6) are arranged in a wire structure.

8. An endoskeletal crush-resistant electrical cable according to claim 7, characterised in that: ​

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