Striped tube with good elasticity

Abstract

The utility model relates to a striped pipe with good elasticity in the field of striped pipes, which comprises a pipe body and a striped layer, the surface of the pipe body is fixedly connected with the inner wall of the striped layer, a reinforcing layer is arranged between the pipe body and the striped layer, the reinforcing layer is composed of two mutually crossed spiral reinforcing ribs, the two reinforcing ribs are crossed to form a rhombic grid, and the rhombic grid is arranged between the pipe body and the striped layer. A plurality of raised lines are integrally formed on the outer surface of the stripe layer, are parallel to the axis of the pipe body and are uniformly distributed around the axis of the pipe body, the side walls of the raised lines are symmetrical double inclined planes, the inclined planes on the two sides intersect to form an acute angle ridge line, equal-width grooves are formed between the adjacent raised lines, and the surface of the pipe body is combined with the bottom surface of the reinforcing layer through hot melting. By arranging the diamond-shaped grid reinforcing layer formed by the double-spiral reinforcing ribs in the crossed mode, the radial compression resistance and the axial torsional elasticity of the pipe body are effectively improved, even deformation compensation can be generated when diamond-shaped grids are pressed, the structural strength of the pipe body is guaranteed, and the multidirectional deformation recovery capacity is given to the stripe pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stripe tube field especially a stripe tube with good elasticity. BACKGROUND

[0002] As a flexible pipe material with both functionality and decorative property, stripe tube is widely used in home decoration, electronic product protection and other fields. In home scenarios, it is often used as decorative structures such as curtain rail, furniture edge banding, etc., to realize the combination of visual aesthetics and anti-skid function through surface stripe design; in the field of electronic product protection, it is often used in cable protection sleeve, device anti-collision edge strip and other components to buffer external impact by using the elasticity of the pipe body. In the prior art, such stripe tubes are mostly single-layer or simply composite structures, and the surface relief is usually formed by mold extrusion. Although it can meet the basic protection requirements, it is prone to permanent deformation or interlayer peeling under repeated bending and extrusion working conditions, and the wear resistance and stain resistance of the surface stripe are insufficient, which may affect the decorative effect or protection reliability after long-term use.

[0003] The structure design of the stripe tube currently applied in home and electronic products often cannot balance the elastic deformation capacity and the durability of decoration and protection function. For example, the stripe tube formed by a single material has the advantage of lightweight, but is limited by the material strength and is prone to ridge line fracture when heavy objects are overlaid or frequently bent; and the reinforced layer structure combined by adhesive process is prone to delamination and warping due to insufficient interfacial bonding strength, resulting in uneven decorative surface or falling of the protective edge strip. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a stripe tube with good elasticity, which can effectively solve the technical problem of insufficient interfacial bonding strength.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] A stripe tube with good elasticity, comprising a pipe body and a stripe layer, the surface of the pipe body is fixedly connected with the inner wall of the stripe layer, a reinforcing layer is arranged between the pipe body and the stripe layer, the reinforcing layer is composed of two spiral reinforcing ribs intersecting with each other, the two reinforcing ribs intersect to form a rhombic grid, a plurality of reliefs are integrally formed on the outer surface of the stripe layer, the plurality of reliefs are parallel to the axis of the pipe body and are uniformly distributed around the axis of the pipe body, the side wall of the relief is a symmetrical double inclined plane, the two side inclined planes intersect to form an acute ridge line, an equal-width groove is formed between adjacent reliefs, the surface of the pipe body and the bottom surface of the reinforcing layer are combined by heat melting, so that the surface of the pipe body and the bottom surface of the reinforcing layer are fused to form a mutual penetration area, the pipe body material part in the mutual penetration layer is embedded in the interweaving node gap of the grid structure in the reinforcing layer, the stripe layer covers the surface of the reinforcing layer by extrusion molding process, the outer surface of the reinforcing layer is embedded in the inner wall of the stripe layer, and the inner wall of the stripe layer melts to wrap the surface of the reinforcing rib.

[0007] Further, the spiral directions of the two reinforcing ribs are opposite, and the spiral angle of any one of the two reinforcing ribs is greater than that of the other reinforcing rib.

[0008] Further, the inner wall of the stripe layer is formed with a recessed groove, the reinforcing layer is embedded in the recessed groove, and the side wall of the reinforcing layer is provided with an anchoring tooth which engages the inner wall of the recessed groove.

[0009] Further, the inside of the convex stripe is formed with a continuous cavity structure, the cavity is provided through along the extending direction of the convex stripe, the cross section of the cavity is triangular and the top angle points to the ridge line direction.

[0010] Further, the bottom of the groove is formed with an arc-shaped transition surface, the arc radius gradually increases from the groove bottom to the root of the convex stripe on both sides, and a gradual involute groove bottom profile is formed.

[0011] Further, the interpenetration area forms a wavy bonding interface, the surface material of the pipe body and the bottom surface material of the reinforcing layer are periodically and alternately fused and engaged, and the wave crests and troughs of the bonding interface are equally distributed along the axial direction of the pipe body.

[0012] Compared with the prior art, the utility model has the beneficial effects that: the rhombic grid reinforcing layer formed by the double spiral reinforcing ribs intersecting each other effectively improves the radial compression resistance and the axial torsional elasticity of the pipe body, the rhombic grid can produce uniform deformation compensation when being compressed, the structure strength of the pipe body is ensured, the stripe pipe is endowed with multidirectional deformation recovery ability, the convex stripe adopts the symmetrical double inclined plane structure and forms the acute ridge line, the frictional resistance of the motion contact surface is significantly reduced while the surface anti-skid performance is maintained, the interpenetration area formed by the hot melt bonding is fused at the material molecular level, the gradient transition structure is constructed between the pipe body and the reinforcing layer, the stress concentration problem caused by the traditional bonding process is eliminated, the mechanical embedding effect of the grid node gap is utilized, the interface bonding strength and the elastic deformation ability are coordinately improved, and the interlayer peeling strength is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a sectional view of the utility model;

[0015] Figure 3 It is a schematic view of the stripe layer in the utility model;

[0016] Figure 4 It is a connection schematic view of the reinforcing layer, the stripe layer and the pipe body in the utility model

[0017] The numbers in the diagram are: 1-pipe body, 2-striped layer, 3-reinforcing layer, 4-diamond grid, 5-convex texture, 6-groove, 7-recessed groove, 8-anchoring tooth, 9-cavity. Detailed Implementation

[0018] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] The following is combined Figures 1-4 A detailed description of a striped tube with good elasticity according to this utility model is provided below:

[0020] A striped tube with good elasticity includes a tube body 1 and a striped layer 2. The surface of the tube body 1 is fixedly connected to the inner wall of the striped layer 2. A reinforcing layer 3 is provided between the tube body 1 and the striped layer 2. The reinforcing layer 3 is composed of two intersecting spiral reinforcing ribs, which intersect to form a diamond-shaped grid 4. The outer surface of the striped layer 2 is integrally formed with a plurality of raised patterns 5. The raised patterns 5 are parallel to the axis of the tube body 1 and are evenly distributed around the axis of the tube body 1. The sidewalls of the raised patterns 5 are symmetrical double-sloped surfaces, and the two sides of the slope intersect to form an acute-angled ridge. Grooves 6 of equal width are formed between adjacent raised patterns 5. The surface of the tube body 1 and the bottom surface of the reinforcing layer 3 are bonded by heat fusion. The surface of the tube body 1 and the bottom surface of the reinforcing layer 3 are fused together to form an interpenetrating zone. The material of the tube body 1 in the interpenetrating layer is embedded in the gaps of the mesh nodes in the reinforcing layer 3. The striped layer 2 is covered on the surface of the reinforcing layer 3 by an extrusion molding process. The outer surface of the reinforcing layer 3 is embedded in the inner wall of the striped layer 2. The inner wall of the striped layer 2 is fused to wrap the surface of the reinforcing rib. The inner wall of the striped layer 2 has a recessed groove 7. The reinforcing layer 3 is embedded in the recessed groove 7. The side wall of the reinforcing layer 3 is provided with anchoring teeth 8. The anchoring teeth 8 bite into the inner wall of the recessed groove 7. The interlocking structure formed by the recessed groove 7 and the anchoring teeth 8 increases the contact area between the reinforcing layer 3 and the striped layer 2.

[0021] By setting a diamond-shaped grid 4 reinforcement layer 3 formed by the intersection of double helical reinforcing ribs, the radial compressive strength and axial torsional elasticity of the tube body 1 are effectively improved. The diamond-shaped grid 4 can generate uniform deformation compensation under pressure, which not only ensures the structural strength of the tube body 1, but also gives the striped tube multi-directional deformation recovery capability. The raised texture 5 adopts a symmetrical double-bevel structure and forms an acute-angle ridge line, which significantly reduces the frictional resistance of the moving contact surface while maintaining the surface anti-slip performance. The interpenetration zone formed by thermal fusion creates a gradient transition structure between the tube body 1 and the reinforcement layer 3 through the mutual fusion of materials at the molecular level. This not only eliminates the stress concentration problem caused by traditional bonding processes, but also utilizes the mechanical interlocking effect of the grid node gaps to achieve a synergistic improvement in interface bonding strength and elastic deformation capability, and improves interlayer peel strength.

[0022] The two reinforcing ribs have opposite helical directions, and the helix angle of one rib is greater than that of the other. By setting up a double-reinforcing rib structure with opposite helical angles, when the tube body 1 is subjected to torsional load, the two helical ribs generate opposite deformation compensation, reducing the nodal displacement of the rhombic mesh 4 and effectively suppressing local stress concentration. The differential helix angle design allows the helical rib with the larger helix angle to preferentially bear the axial tensile load, while the helical rib with the smaller helix angle focuses on resisting radial compression, achieving a directional match between the load type and the mechanical properties of the ribs, thereby improving the axial tensile strength and radial compressive strength of the tube body 1.

[0023] A cavity 9 is formed inside the raised texture 5, extending through the raised texture 5. The cross-section of the cavity 9 is triangular, with its apex pointing towards the ridge line. This triangular cavity 9 structure reduces the mass of the raised texture 5 unit while converting the compressive load into surface stress distribution on the sidewalls of the cavity 9 through the distribution of cavities with their apexes pointing towards the ridge line. Furthermore, the cavity 9 has a guiding and constraining effect on the deformation of the ridge line. The bottom of the groove 6 forms an arc-shaped transition surface, with the radius of the arc gradually increasing from the bottom of the groove to the roots of the raised textures 5 on both sides, forming an involute groove bottom profile. The stress concentration factor at the bottom of the groove 6 decreases, and combined with the gradually increasing radius distribution, it guides the strain energy to be released uniformly along the groove bottom profile when the tube body 1 bends.

[0024] The interpenetrating zone forms a wave-shaped bonding interface. The surface material of the tube body 1 and the bottom material of the reinforcing layer 3 are periodically and alternately melted and interlocked. The peaks and troughs of the bonding interface are equidistantly distributed along the axial direction of the tube body 1. The peak area forms a strong bonding point dominated by mechanical interlocking, while the trough area retains space for elastic deformation. The peaks and troughs alternately bear the load, thereby improving the tensile strength.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A striped tube with good elasticity, comprising a tube body and a striped layer, wherein the surface of the tube body is fixedly connected to the inner wall of the striped layer, characterized in that: A reinforcing layer is provided between the tube body and the striped layer. The reinforcing layer consists of two intersecting spiral reinforcing ribs, which intersect to form a rhomboid grid. The outer surface of the striped layer is integrally formed with several raised patterns, which are parallel to the axis of the tube body and evenly distributed around the axis. The sidewalls of the raised patterns are symmetrical double-sloped surfaces, and the two sides of the slope intersect to form an acute-angled ridge. Grooves of equal width are formed between adjacent raised patterns. The surface of the tube body and the bottom surface of the reinforcing layer are heat-fused together to form an interpenetrating zone. The tube body material is partially embedded in the weaving node gaps of the grid structure in the interpenetrating layer. The striped layer covers the surface of the reinforcing layer through an extrusion molding process. The outer surface of the reinforcing layer is embedded in the inner wall of the striped layer, and the inner wall of the striped layer melts and wraps the surface of the reinforcing ribs.

2. The striped tube with good elasticity according to claim 1, characterized in that: The two reinforcing ribs have opposite helical directions, and the helix angle of either reinforcing rib is greater than that of the other reinforcing rib.

3. A striped tube with good elasticity according to claim 1, characterized in that: The inner wall of the striped layer has a recessed groove, the reinforcing layer is embedded in the recessed groove, and the side wall of the reinforcing layer is provided with anchoring teeth that engage with the inner wall of the recessed groove.

4. A striped tube with good elasticity according to any one of claims 1-3, characterized in that: The ridge has a cavity inside, which extends through the ridge. The cavity has a triangular cross-section with its apex pointing towards the ridge line.

5. A striped tube with good elasticity according to any one of claims 1-3, characterized in that: The bottom of the groove forms an arc-shaped transition surface, and the radius of the arc gradually increases from the bottom of the groove to the root of the convex texture on both sides, forming an involute groove bottom profile.

6. A striped tube with good elasticity according to any one of claims 1-3, characterized in that: The interpenetrating zone forms a wave-shaped bonding interface, where the surface material of the pipe body and the bottom material of the reinforcing layer are periodically and alternately melted and interlocked, and the peaks and valleys of the bonding interface are equidistantly distributed along the axial direction of the pipe body.

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