Silicone tube with high pressure resistance

Abstract

The utility model discloses a silica gel tube with high pressure resistance, which comprises an inner silica gel layer, an inner braid layer arranged on the outer side of the inner silica gel layer, reinforcing wires wound on the outer side of the inner braid layer in a threaded manner, a middle connecting layer arranged on the outer side of the reinforcing wires, an outer braid layer arranged on the outer side of the middle connecting layer, and an outer silica gel layer arranged on the outer side of the outer braid layer, due to the adoption of the composite structure, the overall compression resistance of the silicone tube can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of silica gel pipe more specifically, it relates to a silica gel pipe that strong pressure resistance. BACKGROUND

[0002] The silica gel pipe that strong pressure resistance is applicable to high pressure, high deformation resistance requirement scene, including medical treatment (high pressure infusion pipe, breathing machine pipeline), industry (chemical fluid transmission, hydraulic system), car (turbocharging pipe, brake system), food pharmacy (high pressure homogenizer, cleaning pipeline), new energy (battery liquid injection, fuel cell) and household electrical appliances (coffee machine, water purifier) etc. field. It has flexibility and durability, and is an ideal choice to replace traditional metal / hard pipe.

[0003] At present, the silica gel pipe that strong pressure resistance on the market mainly depends on internal addition braided layer (such as polyester fiber) to improve the compression resistance, but this method has obvious limitations: on the one hand, the bonding strength of braided layer and silica gel matrix is insufficient, and interlayer separation is prone to occur under long-term high pressure or pulse pressure;On the other hand, the dispersion effect of simple braided structure on radial pressure is limited, and the compression resistance enhancement amplitude can usually be increased by only 30-50%. Especially under dynamic bending working condition, braided layer is prone to fatigue fracture due to repeated deformation, resulting in rapid attenuation of compression resistance. This traditional enhancement method is difficult to meet the severe requirements of medical high pressure injection (such as CT contrast requiring to withstand 10-15MPa instantaneous pressure) or industrial superhigh pressure fluid transmission (such as hydraulic system above 20MPa). UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the problems in the prior art, the utility model provides a silica gel pipe that strong pressure resistance to solve the technical problem of poor compression resistance of the silica gel pipe that strong pressure resistance in the prior art by simply adopting the internal braided layer.

[0006] (II) technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A silica gel pipe that strong pressure resistance, including inner silica gel layer, the outer side of the inner silica gel layer is provided with inner braided layer, the outer side of the inner braided layer is provided with reinforcing wire with thread winding, the outer side of the reinforcing wire is provided with middle layer connecting layer, the outer side of the middle layer connecting layer is provided with outer braided layer, the outer side of the outer braided layer is provided with outer silica gel layer.

[0009] The present invention is further configured such that the middle connecting layer includes a connecting body, an inner connecting structure is provided between the inner side of the connecting body and the inner silicone layer, and an outer connecting structure is provided between the outer side of the connecting body and the outer silicone layer.

[0010] The present invention is further configured such that the inner connection structure includes an inner connection groove, the inner connection groove is formed on the inner wall of the connection body, an inner connection block is provided on the outer side of the inner silicone layer, and the inner connection block and the inner connection groove are mutually limiting and engaging. The connection stability between the middle connection layer and the inner silicone layer can be improved by the cooperation between the inner connection block and the inner connection groove.

[0011] The present invention is further configured such that the external connection structure includes an external connection groove, the external connection groove is formed on the inner wall of the outer silicone layer, and an external connection block is provided on the outer side wall of the connection body. The external connection block and the external connection groove are mutually limiting and engaging. The connection stability between the middle connection layer and the outer silicone layer can be improved through the cooperation between the external connection block and the external connection groove.

[0012] The present invention is further provided with a protective surface layer on the outer side of the outer silicone layer, thereby improving the overall protective performance of the outer surface of the silicone tube.

[0013] The present invention is further configured such that a reinforcing ridge is provided on the outer side of the outer silicone layer, and a connecting groove is formed on the inner side of the protective surface layer. The reinforcing ridge is engaged and fixed in the connecting groove. The protective surface layer can be made of a wear-resistant flexible thermoplastic material or wear-resistant silicone material to improve the overall surface protection of the silicone tube. The cooperation between the reinforcing ridge and the connecting groove can improve the connection stability between the protective surface layer and the outer silicone layer. At the same time, the setting of the reinforcing ridge can improve the radial load-bearing capacity of the silicone tube, further improving the overall compressive strength of the silicone tube.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a silicone tube with strong pressure resistance, which has the following beneficial effects:

[0016] 1. This utility model features an inner braided layer on the outside of the inner silicone layer, with reinforcing wires spirally wound around its outer side. First, the inner braided layer is wrapped around the outside of the inner silicone layer, and then the reinforcing wires are spirally wound around the outside of the inner braided layer. In this way, the combination of the inner braided layer and the reinforcing wires can improve the overall compressive deformation resistance of the inner silicone layer during use. The reinforcing wires can be made of stainless steel wire, nylon wire, or polyester fiber, forming a spiral structure on the outside of the inner silicone tube and the inner braided layer to disperse external pressure and prevent the tube body of the inner silicone tube from collapsing.

[0017] 2、The utility model discloses a middle layer connecting layer is provided with on the outside of reinforcing wire, the outside of middle layer connecting layer is provided with outer braid, and the outside of outer braid is provided with outer silica gel layer, so, through the setting of middle layer connecting layer can improve the installation stability of outer braid, simultaneously, through the setting of middle layer connecting layer and outer silica gel layer can improve the composite of silica gel pipe whole, balance the flexibility and pressure resistance of whole, further improve the pressure resistance of silica gel pipe whole.

[0018] 3、The utility model discloses connecting main part and inner silica gel layer between middle layer connecting layer are connected through the cooperation limiting connection of inner connecting block and inner connecting groove, simultaneously, connecting main part and outer silica gel layer are connected through the cooperation limiting connection of outer connecting block and outer connecting groove, wherein, inner connecting block preferably passes through or avoids inner braid and reinforcing wire, and outer connecting block passes through or avoids outer braid, so, through middle layer connecting layer can connect limitingly the inner silica gel layer and outer silica gel layer, reduce the delamination phenomenon in use, improve the use performance. DRAWINGS

[0019] Fig. 1 It is the whole structure cross section schematic drawing of the silica gel pipe of strong pressure resistance in the utility model;

[0020] Figs. 2-5 It is the whole structure cooperation process schematic drawing of the silica gel pipe of strong pressure resistance in the utility model.

[0021] In the drawing: 1, inner silica gel layer;2, inner braid;3, reinforcing wire;4, middle layer connecting layer;5, outer braid;6, outer silica gel layer;7, connecting main part;8, inner connecting groove;9, inner connecting block;10, outer connecting groove;11, outer connecting block;12, protective surface layer;13, reinforcing rib;14, connecting groove. PREFERRED EMBODIMENT

[0022] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0024] In the present application, unless otherwise specified, the orientation such as "up, down" is generally with respect to the direction shown in the drawings, or with respect to the vertical, perpendicular or gravitational direction. Similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the present application.

[0025] Please refer to Figs. 1-5 A kind of strong silicon tube of compression resistance, including inner silica gel layer 1, the outside of inner silica gel layer 1 is provided with inner braided layer 2, the outside of inner braided layer 2 is provided with reinforcing wire 3 by thread winding, the outside of reinforcing wire 3 is provided with middle layer connecting layer 4, the outside of middle layer connecting layer 4 is provided with outer braided layer 5, the outside of outer braided layer 5 is provided with outer silica gel layer 6.

[0026] Please refer to Figs. 1-5 As an embodiment of middle layer connecting layer 4: middle layer connecting layer 4 includes connecting body 7, and the inside of connecting body 7 is provided with inner connecting structure between inner silica gel layer 1, and the outside of connecting body 7 is provided with outer connecting structure between outer silica gel layer 6.

[0027] Wherein, the inner connecting structure includes inner connecting groove 8, and inner connecting groove 8 is opened on the inner wall of connecting body 7, the outside of inner silica gel layer 1 is provided with inner connecting block 9, and inner connecting block 9 and inner connecting groove 8 are limit snap, and the connection stability between middle layer connecting layer 4 and inner silica gel layer 1 can be improved by the cooperation between inner connecting block 9 and inner connecting groove 8.

[0028] Further, the outer connecting structure includes outer connecting groove 10, and outer connecting groove 10 is opened on the inner wall of outer silica gel layer 6, and the outer wall of connecting body 7 is provided with outer connecting block 11, and outer connecting block 11 and outer connecting groove 10 are limit snap, and the connection stability between middle layer connecting layer 4 and outer silica gel layer 6 can be improved by the cooperation between outer connecting block 11 and outer connecting groove 10.

[0029] Please refer to Figs. 1-5 As an embodiment of outer silica gel layer 6: the outside of outer silica gel layer 6 is provided with protective surface layer 12, and the protection performance of the overall outer surface of the silica gel tube is improved by the arrangement of protective surface layer 12.

[0030] Please refer to Figs. 1-5 As an embodiment of outer silica gel layer 6: the outside of outer silica gel layer 6 is provided with reinforcing convex rib 13, and the inside of protective surface layer 12 is formed with connecting groove 14, and reinforcing convex rib 13 is clamped and fixed in connecting groove 14, wherein protective surface layer 12 can be made of flexible thermoplastic material with wear-resistant effect, or made of wear-resistant silica gel material, to improve the surface protection of the overall silica gel tube, and the connection stability between protective surface layer 12 and outer silica gel layer 6 can be improved by the cooperation of reinforcing convex rib 13 and connecting groove 14, and the radial bearing of the silica gel tube can be improved by the arrangement of reinforcing convex rib 13, to further improve the compression resistance of the overall silica gel tube.

[0031] In summary:

[0032] The utility model discloses a reinforcing silk 3 is spirally wound on the outside of the inner braided layer 2, and the inner braided layer 2 is wrapped and covered on the outside of the inner silica gel layer 1, and the reinforcing silk 3 is spirally wound on the outside of the inner braided layer 2, so that the overall compression deformation performance of the inner silica gel layer 1 during use can be improved through the cooperation of the inner braided layer 2 and the reinforcing silk 3.

[0033] The reinforcing silk 3 can adopt stainless steel wire, nylon wire or polyester fiber, so that a spiral structure is formed on the outside of the inner silica gel tube and the inner braided layer 2, external pressure is dispersed, and the tube body of the inner silica gel tube is prevented from collapsing.

[0034] The utility model discloses a middle layer connecting layer 4 is arranged on the outside of the reinforcing silk 3, an outer braided layer 5 is arranged on the outside of the middle layer connecting layer 4, and an outer silica gel layer 6 is arranged on the outside of the outer braided layer 5, so that the installation stability of the outer braided layer 5 can be improved through the arrangement of the middle layer connecting layer 4, and meanwhile, the overall composite property of the silica gel tube can be improved through the arrangement of the middle layer connecting layer 4 and the outer silica gel layer 6, the flexibility and the compression resistance of the whole are balanced, and the compression resistance of the whole of the silica gel tube is further improved.

[0035] The middle layer connecting layer 4 can adopt silica gel material or flexible thermoplastic material according to needs, for example, TPU, EVA, PE, etc.

[0036] In the utility model, the connecting main body 7 in the middle layer connecting layer 4 and the inner silica gel layer 1 are connected through the cooperation of the inner connecting block 9 and the inner connecting groove 8, and the connecting main body 7 and the outer silica gel layer 6 are connected through the cooperation of the outer connecting block 11 and the outer connecting groove 10, wherein the inner connecting block 9 is preferably through or avoids the inner braided layer 2 and the reinforcing silk 3, and the outer connecting block 11 is through or avoids the outer braided layer 5, so that the inner silica gel layer 1 and the outer silica gel layer 6 can be connected through the middle layer connecting layer 4, the delamination phenomenon during use is reduced, and the use performance is improved.

[0037] If the middle layer connecting layer 4 is flexible thermoplastic material, hot melt coating process can be used to cover the surface of the reinforcing silk 3, and meanwhile, the inner side of the connecting main body 7 is attached to the outside of the inner connecting block 9 during the coating forming process, and the inner connecting groove 8 is formed, so that the stable connection between the middle layer connecting layer 4 and the inner silica gel layer 1 is realized.

[0038] If the middle connecting layer 4 is made of silica gel material, the production process of the outer silica gel layer 6 can be the same, and the extrusion vulcanization process can be used for wrapping and covering. At the same time, in the process of extrusion vulcanization, the inner side of the middle connecting layer 4 will be attached to the inner connecting block 9 to form the inner connecting groove 8, and at the same time, the outer silica gel layer 6 will be attached to the outer connecting block 11 to form the outer connecting groove 10. In this way, the connection stability between the inner and outer layers can be improved, the delamination phenomenon during use can be avoided, the use strength can be improved, and the internal porosity can be reduced.

[0039] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods. In this case, the welding is preferred for the fixed connection, although the embodiments of the utility model have been shown and described. For those skilled in the art, it can be understood that various changes, modifications, replacements and deformations can be made to these embodiments without departing from the principles and spirits of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

[0040] In all the above-mentioned solutions, the electrical element operation is controlled by the controller, and the control principle and circuit connection of the controller are known and mature technology. The specific circuit structure is not described here.

[0041] In all the above-mentioned solutions, the motor can be matched with a speed reducer if necessary. The connection structure and working principle between the motor and the speed reducer are known and mature technology, and the utility model does not need to be described.

[0042] In all the above-mentioned solutions, the connection between the solar panel and the battery can be matched with an inverter, a battery charging controller, a cable, a fuse, a support and other necessary accessories. The control principle and circuit connection are known and mature technology, and the specific circuit structure is not described here.

Claims

1. A strong pressure-resistant silica gel tube comprising an inner silica gel layer (1), characterized in that: The outer side of the inner silica gel layer (1) is provided with an inner braided layer (2), the outer side of the inner braided layer (2) is provided with a reinforcing wire (3) which is threadedly wound, the outer side of the reinforcing wire (3) is provided with a middle layer connecting layer (4), the outer side of the middle layer connecting layer (4) is provided with an outer braided layer (5), and the outer side of the outer braided layer (5) is provided with an outer silica gel layer (6).

2. The pressure-resistant silica gel tube according to claim 1, characterized in that: The middle layer connecting layer (4) comprises a connecting body (7), an inner connecting structure is arranged between the inner side of the connecting body (7) and the inner silica gel layer (1), and an outer connecting structure is arranged between the outer side of the connecting body (7) and the outer silica gel layer (6).

3. The pressure-resistant silica gel tube according to claim 2, characterized in that: The inner connecting structure comprises an inner connecting groove (8) which is arranged on the inner wall of the connecting body (7), the outer side of the inner silica gel layer (1) is provided with an inner connecting block (9), and the inner connecting block (9) and the inner connecting groove (8) are limitingly clamped.

4. The pressure-resistant silica gel tube according to claim 2, characterized in that: The outer connecting structure comprises an outer connecting groove (10) which is arranged on the inner wall of the outer silica gel layer (6), the outer side wall of the connecting body (7) is provided with an outer connecting block (11), and the outer connecting block (11) and the outer connecting groove (10) are limitingly clamped.

5. The pressure-resistant silica gel tube according to claim 1, characterized in that: The outer side of the outer silica gel layer (6) is provided with a protective surface layer (12).

6. The pressure-resistant silica gel tube according to claim 5, characterized in that: The outer side of the outer silica gel layer (6) is provided with a reinforcing convex rib (13), the inner side of the protective surface layer (12) is formed with a connecting groove (14) in cooperation, and the reinforcing convex rib (13) is clamped and fixed in the connecting groove (14).

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